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+{"schema_version": "1.0.0", "disease_id": "bottle.disease_fungal.gourd_anthracnose", "aliases": ["cucurbit anthracnose", "gourd fruit rot"], "crop": {"common_name": "bottle gourd", "scientific_name": "Lagenaria siceraria", "family": "Cucurbitaceae"}, "condition": {"common_name": "gourd anthracnose", "scientific_name": "Colletotrichum orbiculare", "alt_names": ["cucurbit anthracnose"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Sordariomycetes", "order": "Glomerellales", "family": "Glomerellaceae", "genus": "Colletotrichum", "species": "orbiculare"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["rain splash", "wind-driven rain", "contaminated tools", "field workers", "infected seed"], "overwintering": ["infected crop debris", "infected seed", "volunteer cucurbit plants"]}, "environmental_risk": {"risk_factors": ["prolonged leaf wetness", "high humidity", "warm temperatures", "poor air circulation", "overhead irrigation"], "temp_c_day": [22, 28], "temp_c_night": [18, 24], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 10}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area affected, or < 5 small lesions per leaf. No significant stem or fruit lesions.", "moderate": "11-40% of leaf area affected, multiple coalescing lesions on leaves, some small, non-rotting lesions on fruit or stems.", "severe": ">40% of leaf area affected, extensive stem cankers causing vine dieback, or large, sunken, rotting lesions on multiple fruits.", "notes": "Severity is assessed based on the percentage of symptomatic tissue on the most affected leaves and the presence/size of lesions on stems and fruit. Fruit symptoms heavily increase severity rating."}, "symptoms": {"leaves": ["Begins as small, water-soaked spots.", "Spots enlarge into circular, dark brown to black lesions, often up to 1-2 cm in diameter.", "Lesion centers may dry out, turn tan or gray, and crack or fall out, creating a 'shot-hole' appearance.", "A distinct dark border often surrounds the lighter center of mature lesions."], "stems": ["Develops elongated, sunken, water-soaked cankers that turn dark.", "Cankers can girdle the stem, causing wilting and dieback of the vine above the infection point."], "fruit": ["Circular, water-soaked, and noticeably sunken spots appear on the fruit surface.", "Lesions enlarge, turn black, and can coalesce to cover large areas.", "During humid conditions, a pinkish or salmon-colored ooze of fungal spores may appear in the center of fruit lesions."], "roots": [], "whole_plant": ["General wilting or vine dieback can occur if stems are severely girdled by cankers."], "signs_microscopic_or_visible": ["Pink to salmon-colored spore masses (acervuli) visible in the center of lesions, especially on fruit, during moist weather."]}, "lookalikes": [{"condition_name": "gourd downy mildew", "condition_id": "bottle.disease_fungal.gourd_downy_mildew", "key_differences": ["Downy mildew lesions are angular and bounded by leaf veins, appearing yellow on top; anthracnose lesions are circular and dark.", "Downy mildew produces a purplish-gray, fuzzy mold on the leaf underside; anthracnose may have a pinkish ooze in lesion centers but no fuzzy mold.", "Anthracnose causes distinct, large, sunken black cankers on fruit, which is not a primary symptom of downy mildew."]}, {"condition_name": "gourd pest damage", "condition_id": "bottle.pest.gourd_pest_damage", "key_differences": ["Pest damage often involves physical injury like chewing marks or stippling, not the characteristic water-soaked, circular, developing lesions of anthracnose.", "Anthracnose lesions are a sign of infection and expand over time, while pest damage is typically static after the feeding event.", "The presence of insects, eggs, or frass (excrement) indicates pest damage, whereas anthracnose may show pink spore masses."]}], "management": {"cultural": ["Use certified disease-free seed.", "Practice a crop rotation of at least 2-3 years with non-cucurbit crops.", "Promote air circulation by using trellises and appropriate plant spacing.", "Avoid overhead irrigation to minimize leaf wetness; use drip irrigation.", "Remove and destroy infected plant debris at the end of the season."], "biological": ["Biofungicides containing strains of *Bacillus subtilis* may provide some preventative suppression."], "chemical": ["Apply preventative fungicides, especially during warm, wet weather.", "Effective active ingredients include mancozeb, chlorothalonil, and copper-based compounds.", "For curative action, fungicides in the strobilurin class (e.g., azoxystrobin) can be used, but must be rotated to prevent resistance."], "notes": "Chemical control is most effective when used preventatively. Follow label instructions and pre-harvest intervals carefully."}, "qa_seeds": {"verification_templates": ["Is there a circular, dark lesion on this leaf?", "Does this gourd fruit have a sunken, black spot on its surface?", "Can you see an elongated, dark canker on the vine's stem?", "Is there evidence of a fungal disease on this plant?", "Does this bottle gourd leaf appear healthy?"], "attribute_templates": ["What is the shape of the spots on the leaves?", "How would you describe the lesion on the fruit?", "Is the center of the leaf spot lighter in color than its border?", "Can you see any pink or salmon-colored substance in the center of the fruit lesion?", "Does the leaf lesion have a 'shot-hole' appearance where the center has fallen out?", "Are the lesions on the leaf circular or are they angular and defined by veins?"], "diagnosis_templates": ["Based on the sunken black spots on the fruit and circular lesions on the leaves, what disease is this?", "What is the likely cause of the wilting vine and dark, sunken cankers on the stem?", "Is this bottle gourd plant infected with anthracnose?"], "counterfactual_templates": ["If the spots on the leaves were angular and yellow with fuzzy growth underneath, would this still be anthracnose?", "If the damage was chewing holes instead of expanding lesions, what would be the likely cause?"], "severity_templates": ["What percentage of this leaf's surface is covered by anthracnose lesions?", "How would you rate the severity of anthracnose on this fruit: mild, moderate, or severe?", "Are the lesions on this plant just a few isolated spots, or are they numerous and merging together?"], "confounders": ["gourd_downy_mildew", "gourd_pest_damage"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Diffuse, even lighting is required. Avoid hard shadows, direct sun glare, and over/under exposure to accurately assess lesion color and texture.", "occlusion_notes": "The primary symptomatic plant part (leaf, fruit, or stem) should be clearly visible and not significantly obscured by other leaves, debris, or objects."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University Extension Plant Disease Guides", "APS Compendium of Cucurbit Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "bottle.disease_fungal.gourd_downy_mildew", "aliases": ["downy mildew of bottle gourd", "cucurbit downy mildew on bottle gourd"], "crop": {"common_name": "bottle gourd", "scientific_name": "Lagenaria siceraria", "family": "Cucurbitaceae"}, "condition": {"common_name": "downy mildew", "scientific_name": "Pseudoperonospora cubensis", "alt_names": ["cucurbit downy mildew"], "pathogen": {"type": "disease_oomycete", "taxonomy": {"kingdom": "Stramenopila", "phylum": "Oomycota", "class": "Oomycetes", "order": "Peronosporales", "family": "Peronosporaceae", "genus": "Pseudoperonospora", "species": "cubensis"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": ["wind", "rain splash"], "dispersal": ["airborne sporangia"], "overwintering": ["on living cucurbit hosts in tropical/subtropical regions", "as oospores in soil (less common for this pathogen)"]}, "environmental_risk": {"risk_factors": ["high relative humidity", "prolonged leaf wetness", "cool nights and warm, humid days", "dense plant canopy with poor air circulation"], "temp_c_day": [16, 22], "temp_c_night": [10, 18], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 6}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area affected. A few scattered, pale green to yellow angular lesions, primarily on older leaves.", "moderate": "11-40% of leaf area affected. Lesions are numerous, may be coalescing, and some necrosis is present. Downy growth is clearly visible on leaf undersides.", "severe": ">40% of leaf area affected. Widespread necrosis and blighting of leaves, leading to significant defoliation.", "notes": "Severity is assessed by the percentage of total foliar area showing symptoms (chlorosis and necrosis). Confirmation of diagnosis often requires checking the underside of leaves for sporulation."}, "symptoms": {"leaves": ["Initial symptoms are pale green or yellowish, water-soaked spots on the upper leaf surface.", "Lesions are characteristically angular or 'blocky' in shape, as their expansion is limited by major leaf veins.", "Spots enlarge and turn bright yellow, eventually becoming necrotic and turning brown to dark brown.", "A purplish-gray, fuzzy or 'downy' growth (sporangia) is visible on the underside of the leaf, corresponding to the upper lesions, especially in the morning or during high humidity.", "Infected leaves may curl downwards, wither, and die prematurely, starting from the bottom of the plant.", "Severely affected leaves can look scorched or blighted."], "stems": ["Stems are typically not directly affected."], "fruit": ["Fruit is not directly infected by the pathogen.", "Fruit may be smaller, misshapen, or have poor flavor due to reduced photosynthesis from defoliation.", "Loss of leaf cover can expose fruit to sunscald, causing white, leathery patches."], "roots": ["No direct symptoms on roots."], "whole_plant": ["Reduced plant vigor and stunted growth.", "Significant defoliation can occur rapidly under favorable conditions, starting with lower leaves."], "signs_microscopic_or_visible": ["Visible sign is the characteristic purplish-gray downy mold on the abaxial (lower) leaf surface."]}, "lookalikes": [], "management": {"cultural": ["Use resistant or tolerant cultivars when available.", "Promote good air circulation through proper plant spacing and trellising.", "Avoid overhead irrigation to minimize leaf wetness duration; use drip irrigation instead.", "Manage weeds to improve airflow and reduce humidity within the canopy.", "Scout plants regularly, especially during cool, moist weather."], "biological": ["Application of bio-fungicides based on Bacillus subtilis or Trichoderma species can have some suppressive effect when used preventatively."], "chemical": ["Preventative fungicide applications are most effective.", "Apply fungicides with translaminar or systemic activity that target oomycetes (e.g., products containing mandipropamid, cyazofamid, or phosphonates).", "Rotate fungicide modes of action to prevent resistance development."], "notes": "Management must be proactive, as downy mildew can spread very quickly once established. Predictive models based on weather data can help time fungicide applications."}, "qa_seeds": {"verification_templates": ["Does this leaf have yellow spots that are angular or blocky in shape?", "Is there a fuzzy, purplish-gray growth on the underside of the leaf?", "Are the spots on the leaf limited by the veins?", "Are the oldest leaves at the bottom of the plant showing the first symptoms?", "Do the spots on the upper leaf surface look pale green or bright yellow?"], "attribute_templates": ["What is the shape of the lesions on the leaf?", "What color is the growth on the underside of the leaf?", "Describe the pattern of yellowing on this leaf.", "Are the spots circular or angular?", "Which leaves on the plant appear most affected?"], "diagnosis_templates": ["What disease causes angular, yellow spots on the top of bottle gourd leaves and fuzzy purple growth underneath?", "Is this bottle gourd leaf infected with downy mildew?", "Based on the vein-limited lesions, what is the most likely diagnosis?"], "counterfactual_templates": ["If the spots were circular with a dark border and sunken, what disease might it be instead?", "What might be the problem if the leaves were yellowing between the veins but there was no fuzzy growth underneath?"], "severity_templates": ["What percentage of this leaf surface is covered by yellow or brown lesions?", "Based on the amount of leaf damage, would you classify this downy mildew infection as mild, moderate, or severe?", "Are the individual spots beginning to merge into large, dead patches?"], "confounders": ["gourd_anthracnose", "gourd_nutritional_deficiency"]}, "data_requirements": {"min_resolution_px": 800, "min_roi_fraction": 0.4, "lighting_notes": "Diffuse, even lighting is optimal. Avoid hard shadows. Capturing images in the early morning may increase the visibility of sporulation on leaf undersides. An angled light source can help highlight the 'downy' texture.", "occlusion_notes": "The symptomatic leaf, especially the transition from healthy to diseased tissue, should be clearly visible. If possible, provide images of both the upper (adaxial) and lower (abaxial) surfaces of the same leaf."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T11:30:00Z", "updated_at": "2023-10-27T11:30:00Z", "sources": ["University Extension Plant Disease Fact Sheets", "APS Compendium of Cucurbit Diseases, Second Edition", "CABI Invasive Species Compendium"]}}
+{"schema_version": "1.0.0", "disease_id": "bottle.unknown.gourd_pest_damage", "aliases": ["insect damage on bottle gourd", "bottle gourd pest feeding", "arthropod injury on bottle gourd"], "crop": {"common_name": "bottle gourd", "scientific_name": "Lagenaria siceraria", "family": "Cucurbitaceae"}, "condition": {"common_name": "Gourd Pest Damage", "scientific_name": "", "alt_names": ["insect feeding injury", "pest injury"], "pathogen": {"type": "Pest", "taxonomy": {"kingdom": "Animalia", "phylum": "Arthropoda", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "unknown", "transmission": {"vectors": ["adult insects", "larvae", "nymphs"], "dispersal": ["flight", "crawling", "wind dispersal (for small insects)"], "overwintering": ["in crop debris", "in soil as pupae or eggs", "on alternate weed hosts"]}, "environmental_risk": {"risk_factors": ["warm, dry weather (favors mites, some beetles)", "high humidity (favors some caterpillars)", "presence of alternate weed hosts", "monoculture planting", "lack of natural predators"], "temp_c_day": [20, 35], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area shows signs of feeding (chewing, stippling, mining). Little to no impact on plant vigor.", "moderate": "11-40% of leaf area is affected. Some leaf yellowing, curling, or minor defoliation may be present.", "severe": ">40% of leaf area is affected. Significant defoliation, plant stunting, wilting, or fruit damage is evident.", "notes": "Severity is estimated based on the total visible damage across the leaf surface. For fruit damage, a qualitative assessment (e.g., number of feeding sites) may be used."}, "symptoms": {"leaves": ["Irregularly shaped holes chewed in the leaf lamina.", "Skeletonization, where only the leaf veins remain.", "Small, numerous yellow or white dots (stippling) on the upper leaf surface from sucking insects.", "Winding, discolored trails or blotches (mines) within the leaf tissue.", "Leaves appear curled, distorted, or crinkled, especially new growth.", "A shiny, sticky substance (honeydew) on leaf surfaces.", "Black, soot-like fungal growth (sooty mold) on honeydew.", "Presence of silk webbing on or between leaves."], "stems": ["Boring holes or tunnels visible in vines.", "Wilting of vines above the point of feeding damage."], "fruit": ["Superficial scarring, pitting, or 'stinging' on the fruit surface.", "Sunken, discolored areas from feeding.", "Boring holes, sometimes with insect frass (excrement) pushed out.", "Deformed or misshapen fruit growth."], "roots": [], "whole_plant": ["Stunted growth or reduced vigor.", "General wilting of the plant, even with sufficient soil moisture."], "signs_microscopic_or_visible": ["Visible adult insects, larvae (caterpillars, grubs), or nymphs.", "Clusters of eggs, often on the undersides of leaves.", "Frass (insect excrement) on leaves or near feeding sites."]}, "lookalikes": [{"condition_name": "Gourd Anthracnose", "condition_id": "bottle.fungal.gourd_anthracnose", "key_differences": ["Anthracnose lesions are circular to angular, often water-soaked and sunken with dark borders, whereas pest damage is typically irregular holes (chewing) or fine stippling (sucking).", "Pest damage may have visible signs like insects, eggs, or frass, which are absent in anthracnose.", "In moist conditions, anthracnose lesions may develop pinkish-orange spore masses in the center, a feature not seen with pest damage."]}, {"condition_name": "Gourd Downy Mildew", "condition_id": "bottle.oomycete.gourd_downy_mildew", "key_differences": ["Downy mildew causes angular, vein-limited yellow spots on the upper leaf surface, unlike the random stippling or irregular holes from pests.", "A key sign of downy mildew is a purplish-gray fuzzy growth on the underside of the leaf spots, which is absent in pest damage.", "Downy mildew does not create holes or skeletonize leaves; the tissue within the spots dies and turns necrotic but remains intact initially."]}], "management": {"cultural": ["Use floating row covers on young plants to create a physical barrier.", "Remove and destroy heavily infested plants and crop debris after harvest.", "Practice crop rotation with non-cucurbit crops.", "Encourage natural enemies by planting nectar-rich flowers nearby."], "biological": ["Introduce or conserve predatory insects such as lady beetles, lacewings, and parasitic wasps.", "Apply microbial insecticides like Bacillus thuringiensis (Bt) for caterpillar control."], "chemical": ["Apply insecticidal soaps or horticultural oils for soft-bodied pests like aphids and mites.", "Use selective insecticides (e.g., spinosad) to target specific pests while minimizing harm to pollinators.", "For severe infestations, broad-spectrum insecticides may be used according to local recommendations and pre-harvest intervals."], "notes": "Proper identification of the specific pest is critical for effective management. Always read and follow pesticide label instructions."}, "qa_seeds": {"verification_templates": ["Are there holes chewed in the leaves of the bottle gourd?", "Can you see any tiny dots, stippling, or mining trails on the leaf surface?", "Is there evidence of insect feeding on the fruit?", "Are there any visible insects, caterpillars, or eggs on the plant?", "Does the leaf appear skeletonized, with only the veins remaining?", "Is there any sticky residue or black sooty mold on the leaves?"], "attribute_templates": ["What type of damage is visible on the leaf: holes, spots, or trails?", "Describe the shape and distribution of the damage on the leaf.", "Are the insects located on the top or underside of the leaf?", "What color are the spots caused by the feeding?", "Is there any webbing present on the plant?", "How is the fruit affected by the damage?"], "diagnosis_templates": ["Given the irregular holes and chewed edges, what is the likely cause of this damage?", "What problem is suggested by the widespread stippling and leaf curling?", "Based on the visible caterpillars and frass, what is affecting this plant?"], "counterfactual_templates": ["If the spots were angular and limited by veins, what disease could it be instead of pest damage?", "What would you expect to see if this were a nutritional deficiency instead of insect feeding?"], "severity_templates": ["What percentage of the total leaf area is damaged?", "How would you classify the severity of the pest damage: mild, moderate, or severe?", "Is the pest damage severe enough to cause wilting or stunting?"], "confounders": ["gourd_anthracnose", "gourd_downy_mildew", "gourd_nutritional_deficiency"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Bright, diffuse light is best. Avoid hard shadows that can obscure small insects, webbing, or stippling. Overexposure can wash out subtle discoloration.", "occlusion_notes": "The damaged area should be clearly visible. If possible, images showing both the upper and lower leaf surfaces are valuable for diagnosis."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["University Extension Pest Management Guides for Cucurbits", "APS Compendium of Cucurbit Diseases and Pests", "General Entomology Textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "bottle.unknown.gourd_healthy", "aliases": ["healthy bottle gourd", "normal bottle gourd", "unaffected plant"], "crop": {"common_name": "bottle gourd", "scientific_name": "Lagenaria siceraria", "family": "Cucurbitaceae"}, "condition": {"common_name": "healthy", "scientific_name": null, "alt_names": ["normal", "asymptomatic", "unaffected"], "pathogen": {"type": "none", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "unknown", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Describes optimal conditions; deviations are risks.", "Poorly drained soil", "Shaded conditions (<6 hours of direct sun)", "Nutrient-poor soil", "Extreme temperature fluctuations"], "temp_c_day": [24, 35], "temp_c_night": [18, 24], "relative_humidity_pct": [60, 80], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Plant is vigorous with normal coloration and turgor. No visible signs of disease, pests, or nutritional stress.", "moderate": "Not applicable. Any deviation from 'mild' indicates a potential problem.", "severe": "Not applicable. Any deviation from 'mild' indicates a potential problem.", "notes": "This rubric is used to confirm the absence of symptoms. The 'mild' category represents a healthy plant."}, "symptoms": {"leaves": ["Uniformly green color, ranging from light to dark green depending on age and variety.", "Leaves are fully expanded, turgid, and appropriately sized for their developmental stage.", "Surfaces are free of spots, lesions, discoloration, or powdery/fuzzy growth.", "Leaf margins are smooth and intact, without yellowing, browning, or necrosis.", "Petioles are strong, green, and hold the leaves firmly."], "stems": ["Stems and vines are firm, green, and show signs of active growth.", "No cankers, lesions, discoloration, or gummy exudates are present.", "Tendrils are green, flexible, and actively curling."], "fruit": ["Fruit skin is firm, smooth, and has a uniform, unblemished color characteristic of the variety.", "No sunken spots, soft spots, cracks, or signs of rot.", "The peduncle (fruit stalk) is green, firm, and securely attached."], "roots": [], "whole_plant": ["Exhibits a vigorous, sprawling or climbing growth habit.", "Shows evidence of new, healthy growth such as young leaves, flowers, or developing fruit.", "Plant is not wilted, stunted, or showing signs of dieback."], "signs_microscopic_or_visible": ["Absence of any visible fungal mycelium, spores, bacterial ooze, insect colonies, or feeding damage."]}, "lookalikes": [{"condition_name": "gourd_anthracnose", "condition_id": "bottle.fungal.gourd_anthracnose", "key_differences": ["Healthy leaves are uniformly green, whereas anthracnose causes distinct, water-soaked circular lesions that turn dark brown or black.", "Healthy fruit is unblemished; anthracnose causes sunken, circular, dark lesions, often with pinkish spore masses in the center under moist conditions.", "Healthy stems are clean; anthracnose may cause elongated, dark, sunken cankers on stems and petioles."]}, {"condition_name": "gourd_downy_mildew", "condition_id": "bottle.oomycete.gourd_downy_mildew", "key_differences": ["The upper surface of healthy leaves is uniformly green, while downy mildew causes pale green to yellow, angular spots bounded by leaf veins.", "The underside of a healthy leaf is plain green; downy mildew exhibits a distinct purplish-gray, fuzzy growth on the underside of lesions, especially in high humidity.", "Healthy leaves do not have angular patterns; the vein-limited nature of downy mildew lesions is a key diagnostic feature."]}, {"condition_name": "gourd_nutritional_deficiency", "condition_id": "bottle.abiotic.gourd_nutritional_deficiency", "key_differences": ["Healthy leaves have a solid, uniform green color, whereas deficiencies cause specific patterns like interveinal chlorosis (yellowing between green veins) or marginal yellowing.", "Healthy growth is uniform across the plant, while deficiencies often show a systematic pattern, affecting either older (mobile nutrients) or younger (immobile nutrients) leaves first.", "The overall plant color is a rich green in healthy plants, but can be pale green or yellowish in the case of nitrogen deficiency."]}, {"condition_name": "gourd_senescence_or_dry", "condition_id": "bottle.abiotic.gourd_senescence_or_dry", "key_differences": ["Healthy leaves are turgid and green; drought stress causes temporary wilting of the entire plant, which recovers with water.", "Natural senescence is a gradual, uniform yellowing of the oldest, lowest leaves on the plant, while the rest of the plant remains healthy.", "Disease or acute stress often presents as spots, lesions, or rapid, irregular browning, unlike the orderly progression of senescence."]}], "management": {"cultural": ["Plant in well-drained, fertile soil rich in organic matter.", "Ensure full sun exposure (at least 6-8 hours per day).", "Provide consistent moisture, watering at the base of the plant to keep foliage dry.", "Use trellises to promote air circulation and lift fruit off the ground.", "Practice crop rotation with non-cucurbit crops to prevent soil-borne pathogen buildup."], "biological": [], "chemical": ["Not applicable for a healthy plant. Chemical controls are reactive, not preventative for general health."], "notes": "Maintaining optimal growing conditions is the key to preventing disease and stress."}, "qa_seeds": {"verification_templates": ["Is this bottle gourd plant healthy?", "Are there any signs of disease or stress on the leaves?", "Does the fruit appear normal and unblemished?", "Is the plant showing vigorous growth?", "Can you confirm the absence of spots, yellowing, or wilting?"], "attribute_templates": ["What color are the leaves?", "Describe the texture and color of the stem.", "Are there any markings or spots on the fruit?", "Is there any powdery or fuzzy growth on the undersides of the leaves?", "Describe the overall appearance of the plant.", "Are the leaves turgid or wilted?"], "diagnosis_templates": ["What is the condition of this bottle gourd plant?", "Is this plant suffering from any disease?", "Based on the visual evidence, what is the health status of this plant?"], "counterfactual_templates": ["What would the leaves look like if this plant had downy mildew?", "If this plant were suffering from a nitrogen deficiency, how would its appearance differ?", "What signs would be present on the fruit if it had anthracnose?"], "severity_templates": ["How would you rate the health of this plant?", "Is there any visual evidence to suggest this plant is not in optimal condition?", "Does this plant show any symptoms of disease or stress?"], "confounders": ["gourd_downy_mildew", "gourd_nutritional_deficiency", "gourd_anthracnose"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Use even, diffuse light. Avoid harsh shadows or overexposure which can hide subtle color variations or create misleading bright spots.", "occlusion_notes": "Ensure several representative leaves (both upper and lower surfaces if possible) are clearly visible and not obscured by other foliage or objects."}, "provenance": {"created_by": "expert_plant_pathologist_vqa_designer", "reviewed_by": "expert_plant_pathologist_vqa_designer", "created_at": "2024-05-22T10:00:00Z", "updated_at": "2024-05-22T10:00:00Z", "sources": ["General university extension guides for cucurbit production", "APS Compendium of Cucurbit Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "bottle.nutrient_deficiency.gourd_nutritional_deficiency", "aliases": ["bottle gourd nutrient stress", "bottle gourd mineral deficiency", "bottle gourd nutrient imbalance"], "crop": {"common_name": "bottle gourd", "scientific_name": "Lagenaria siceraria", "family": "Cucurbitaceae"}, "condition": {"common_name": "nutritional deficiency", "scientific_name": "", "alt_names": ["nutrient imbalance", "mineral deficiency"], "pathogen": {"type": "abiotic", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "nutrient_deficiency", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["improper soil pH (too high or too low)", "sandy soils prone to nutrient leaching", "heavy rainfall causing nutrient runoff", "low soil organic matter", "competition from weeds", "waterlogged soil reducing nutrient uptake"], "temp_c_day": [], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of total plant foliage shows discoloration (chlorosis) or minor stunting. Symptoms are often confined to either old or new leaves.", "moderate": "11-40% of foliage is affected. Chlorosis is more pronounced, and some marginal or interveinal necrosis (browning) may be present. Stunting is evident.", "severe": ">40% of foliage is severely chlorotic or necrotic. Significant stunting, poor fruit development (e.g., blossom-end rot), and leaf drop are common. Plant death is possible.", "notes": "Severity is assessed based on the percentage of the entire plant's foliage showing symptoms. The location of symptoms (old vs. new leaves) is a key diagnostic clue for specific nutrient deficiencies but overall percentage reflects severity."}, "symptoms": {"leaves": ["General chlorosis (pale green to yellow discoloration) across the leaf blade.", "Interveinal chlorosis, where leaf veins remain green while the tissue between them turns yellow.", "Yellowing, scorching, or necrosis starting at the margins of older, lower leaves (e.g., Potassium deficiency).", "Uniform pale green or yellowing of older, lower leaves, which may drop prematurely (e.g., Nitrogen deficiency).", "Stunted, small, and pale new leaves (e.g., Iron or Sulfur deficiency).", "Leaves may appear cupped, crinkled, or distorted.", "Purplish discoloration on leaves, particularly on older leaves in cool conditions (e.g., Phosphorus deficiency)."], "stems": ["Stems are thin, spindly, and weak.", "Shortened internodes result in a compact, stunted appearance."], "fruit": ["Poor fruit set or premature fruit drop.", "Fruits are small, misshapen, or have poor color.", "Blossom-end rot, a dark, sunken lesion at the blossom end of the fruit (Calcium deficiency)."], "roots": ["Poorly developed, stunted, or discolored root system (not typically visible in photos)."], "whole_plant": ["Overall stunted growth and lack of vigor compared to healthy plants.", "Premature senescence (aging) and death of lower leaves."], "signs_microscopic_or_visible": []}, "lookalikes": [], "management": {"cultural": ["Conduct a soil test before planting to determine pH and existing nutrient levels.", "Amend soil with compost or other organic matter to improve nutrient retention and availability.", "Adjust soil pH to the optimal range for bottle gourds (6.0-6.8) using lime or sulfur as needed.", "Ensure consistent and adequate watering to facilitate nutrient uptake and prevent drought stress.", "Use a balanced fertilizer according to soil test recommendations."], "biological": [], "chemical": ["Apply a balanced, complete fertilizer (e.g., 10-10-10) if a soil test is unavailable.", "Use foliar sprays containing specific micronutrients (e.g., chelated iron, magnesium sulfate) for rapid but temporary correction of deficiencies.", "Side-dress with nitrogen fertilizer during the growing season as gourds are heavy feeders.", "Apply calcium nitrate or gypsum to prevent blossom-end rot if calcium is deficient."], "notes": "Accurate diagnosis of the specific nutrient is key. Applying a nutrient that is not deficient can create further imbalances. Soil or tissue analysis is the most reliable diagnostic method."}, "qa_seeds": {"verification_templates": ["Does this leaf show any yellowing?", "Are the veins on this leaf greener than the surrounding tissue?", "Is there browning or necrosis on the edge of this leaf?", "Does the overall plant appear stunted?", "Are the symptoms primarily on the older, lower leaves or the newer, upper leaves?", "Is the discoloration on this leaf uniform or patterned?"], "attribute_templates": ["What is the pattern of chlorosis on this leaf?", "Describe the color of the affected leaf tissue.", "Where on the leaf are the symptoms most prominent: the margin, the tip, or between the veins?", "How does the size of the new leaves compare to the old leaves?", "What is the condition of the fruit on this plant?", "Is there any sign of wilting on the plant?"], "diagnosis_templates": ["Is this bottle gourd suffering from a nutritional deficiency?", "What abiotic stress is affecting this plant?", "Could the symptoms on this plant be caused by a lack of nutrients?", "Does this plant show classic signs of nutrient stress, like chlorosis or stunting?"], "counterfactual_templates": ["If this were downy mildew, what would you expect to see on the underside of the leaf?", "If this plant were healthy, what color would its leaves be?", "If the problem was caused by insect feeding, what kind of marks would be visible on the leaves?"], "severity_templates": ["What percentage of the leaves on this plant are yellow or brown?", "On a scale of mild to severe, how would you rate the nutrient deficiency affecting this plant?", "Is the stunting of this plant mild or severe?"], "confounders": ["gourd_downy_mildew", "gourd_senescence_or_dry", "gourd_pest_damage"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Use diffuse, even lighting. Avoid harsh, direct sunlight which can wash out colors and hard shadows which can obscure symptom patterns like interveinal chlorosis.", "occlusion_notes": "Capture images with minimal occlusion of symptomatic leaves. It is helpful to see the whole plant to assess the location of symptoms (new vs. old growth)."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2024-05-21T10:00:00Z", "updated_at": "2024-05-21T10:00:00Z", "sources": ["University Extension Plant Disease Guides", "APS Compendium of Cucurbit Diseases", "General Plant Nutrition Textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "bottle.physiological_symptom.gourd_senescence_or_dry", "aliases": ["bottle gourd drying", "natural senescence", "end-of-season decline", "vine decline"], "crop": {"common_name": "bottle gourd", "scientific_name": "Lagenaria siceraria", "family": "Cucurbitaceae"}, "condition": {"common_name": "gourd senescence or dry", "scientific_name": null, "alt_names": ["drying", "senescence", "maturation", "dieback"], "pathogen": {"type": "physiological_disorder", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "physiological_symptom", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["End of growing season", "Drought stress", "Extreme heat", "Soil nutrient depletion", "Maturity of fruit"], "temp_c_day": [">35"], "temp_c_night": [], "relative_humidity_pct": ["<40"], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaves are yellowing or browning, primarily the oldest, lowest leaves on the vine.", "moderate": "11-40% of leaves are yellow or brown; yellowing has progressed up into the middle section of the vine.", "severe": ">40% of leaves are brown, dry, and brittle; stems are also browning and the plant shows significant dieback.", "notes": "Severity measures the percentage of total plant foliage showing symptoms of senescence. This is a natural process but can be accelerated by stress."}, "symptoms": {"leaves": ["Uniform yellowing (chlorosis) that begins on the oldest, lowest leaves.", "Yellowing progresses sequentially up the vine to younger leaves.", "Affected leaves become entirely brown, dry, and brittle to the touch.", "Leaf margins may curl upwards or inwards as they desiccate.", "Absence of distinct spots, angular lesions, powdery growth, or pustules."], "stems": ["Vines lose their green color, turning tan, light brown, or straw-colored.", "Stems become dry, woody, and less flexible, particularly near the plant base."], "fruit": ["Fruit stops enlarging and begins the curing process on the vine.", "The skin of the gourd hardens and may change color from green to tan or cream.", "The peduncle (fruit stem) becomes dry, hard, and woody."], "roots": [], "whole_plant": ["General and irreversible decline in plant vigor.", "Progressive wilting of the entire plant that does not recover after watering.", "Overall appearance of drying up and dying back naturally at the end of the season."], "signs_microscopic_or_visible": []}, "lookalikes": [], "management": {"cultural": ["Recognize senescence as a natural part of the plant's life cycle, indicating fruit maturity.", "Allow gourds to cure on the drying vine for a harder shell, unless pest or rot pressure is high.", "If drying occurs prematurely, investigate and correct underlying stresses like lack of water or nutrients.", "Remove and compost or dispose of all plant debris after the final harvest to prevent pathogens from overwintering."], "biological": [], "chemical": [], "notes": "Management is not about 'treating' senescence but about distinguishing it from treatable problems and managing the end-of-season harvest and cleanup."}, "qa_seeds": {"verification_templates": ["Are the leaves on this plant turning uniformly yellow, starting from the bottom?", "Do the affected leaves appear dry and brittle?", "Is the entire vine showing signs of drying out, not just a single section?", "Are there any angular spots or fuzzy growth on the undersides of the leaves?", "Does the plant look like it is at the end of its growing season?"], "attribute_templates": ["What is the color of the lowest leaves on the plant?", "Describe the pattern of yellowing on the leaves.", "Where on the plant is the drying most severe?", "What is the condition of the main stem or vine?", "Are the fruit on the vine mature and hard-shelled?", "Describe the texture of the brown leaves."], "diagnosis_templates": ["Is this bottle gourd plant undergoing natural senescence?", "What physiological condition is causing this entire vine to die back?", "Based on the uniform, progressive yellowing from the bottom up, what is wrong with this plant?"], "counterfactual_templates": ["If this were downy mildew, what would you expect to see on the bottom of the leaves?", "What would the leaves look like if this were a magnesium deficiency instead of senescence?", "How would a healthy, mid-season bottle gourd plant look different from this one?"], "severity_templates": ["What percentage of the total foliage on this plant is brown and dry?", "Based on how far the yellowing has progressed up the vine, would you rate the senescence as mild, moderate, or severe?", "Is the drying limited to just the lower leaves, or has it affected more than half the plant?"], "confounders": ["gourd_nutritional_deficiency", "gourd_downy_mildew", "gourd_pest_damage"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.4, "lighting_notes": "Use even, diffuse light. Avoid harsh sunlight that creates deep shadows, which can obscure the uniform nature of the yellowing.", "occlusion_notes": "Image should show a significant portion of the vine, including lower, middle, and upper leaves, to assess the progression of symptoms."}, "provenance": {"created_by": "AI Plant Pathologist Assistant", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["University extension guides on cucurbit production", "General plant physiology textbooks", "APS Compendium of Cucurbit Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "cotton.disease_fungal.alternaria_leaf_spot", "aliases": ["Alternaria leaf blight", "Target spot of cotton"], "crop": {"common_name": "cotton", "scientific_name": "Gossypium hirsutum", "family": "Malvaceae"}, "condition": {"common_name": "alternaria leaf spot", "scientific_name": "Alternaria macrospora, Alternaria alternata", "alt_names": ["Alternaria leaf blight"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Pleosporales", "family": "Pleosporaceae", "genus": "Alternaria", "species": "macrospora, alternata"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["wind", "rain-splash", "infected seed", "contaminated farm equipment"], "overwintering": ["infected crop debris", "volunteer cotton plants", "weed hosts"]}, "environmental_risk": {"risk_factors": ["high humidity", "frequent rainfall or overhead irrigation", "prolonged leaf wetness", "potassium deficiency", "plant stress from other diseases or pests", "late-season plant senescence"], "temp_c_day": [20, 30], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 8}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-5% of leaf area is affected. A few small, scattered lesions, primarily on lower leaves.", "moderate": "6-25% of leaf area is affected. Lesions are numerous, may be coalescing, and some defoliation of lower leaves is evident.", "severe": ">25% of leaf area is affected. Widespread lesion coalescence, significant defoliation extending into the mid and upper canopy, and potential boll lesions.", "notes": "Severity is assessed on the most affected leaves to represent the disease pressure. The disease typically progresses from the bottom of the plant upwards."}, "symptoms": {"leaves": ["Initial lesions are small (1-2 mm), circular, grey-brown to reddish-brown spots.", "Lesions expand to 0.5-2 cm, developing a classic 'target spot' or 'bull's-eye' appearance with distinct concentric rings.", "A dark purple or brown border often surrounds mature lesions.", "A yellow halo may appear around the lesion, especially on younger leaves.", "Lesion centers can become necrotic and brittle, sometimes falling out to create a 'shot-hole' effect.", "Under severe pressure, multiple lesions coalesce, causing large blighted areas.", "Premature defoliation occurs, starting with the oldest, lowest leaves.", "Infection is often more severe on plants under nutrient stress, particularly potassium deficiency."], "stems": ["Stem lesions are uncommon but can occur as elongated, dark, slightly sunken areas in severe infections."], "fruit": ["Lesions on bolls appear as circular, sunken, dark brown to black spots.", "Boll infections can lead to premature opening and lint staining."], "roots": [], "whole_plant": ["Infected plants show reduced vigor and premature senescence.", "Disease is often first observed and most severe in the lower canopy."], "signs_microscopic_or_visible": ["Under high humidity, a dark, velvety or sooty mold (fungal spores and conidiophores) may be visible in the center of older lesions, often requiring a hand lens."]}, "lookalikes": [{"condition_name": "bacterial blight", "condition_id": "cotton.disease_bacterial.bacterial_blight", "key_differences": ["Bacterial blight lesions are angular and vein-limited, while Alternaria spots are circular with concentric rings.", "Bacterial blight spots often appear water-soaked initially and turn black, lacking the distinct 'target' pattern.", "Bacterial blight can cause long, black lesions on stems ('blackarm'), a symptom not typical of Alternaria."]}, {"condition_name": "leaf reddening", "condition_id": "cotton.physiological_symptom.leaf_reddening", "key_differences": ["Leaf reddening is a diffuse discoloration (red, purple) across the leaf lamina, not discrete, circular spots with necrotic centers.", "Reddening lacks the concentric rings and defined borders characteristic of Alternaria lesions.", "Alternaria causes distinct spots of dead tissue, whereas reddening is a change in leaf pigment due to stress or senescence."]}, {"condition_name": "herbicide growth damage", "condition_id": "cotton.herbicide_injury.herbicide_growth_damage", "key_differences": ["Herbicide spots (from contact types) are often irregular in shape with bleached white or tan centers and lack organized concentric rings.", "Herbicide damage may follow a distinct spray pattern on the plant or in the field, unlike the more random distribution of a fungal disease.", "Other signs of herbicide injury, such as leaf cupping, strapping, or stunting, may be present on the plant."]}], "management": {"cultural": ["Plant resistant or tolerant cotton varieties.", "Maintain balanced plant nutrition, especially adequate potassium levels.", "Practice crop rotation with non-host crops.", "Manage irrigation to minimize leaf wetness duration.", "Destroy crop residue after harvest to reduce pathogen inoculum."], "biological": ["Use of registered bio-fungicides containing Bacillus species may offer some suppression."], "chemical": ["Apply foliar fungicides (e.g., strobilurins, triazoles) preventatively or at first sign of disease, especially during favorable weather conditions.", "Consult local extension recommendations for effective and registered products and timing."], "notes": "An integrated approach combining cultural practices and chemical control when necessary is most effective."}, "qa_seeds": {"verification_templates": ["Is there a circular lesion with concentric rings on this leaf?", "Does this spot look like a 'bull's-eye' or target?", "Can you see a dark border surrounding the leaf spot?", "Are the spots causing the center tissue to die and turn brown or grey?", "Are the spots causing premature yellowing or dropping of the leaves?"], "attribute_templates": ["What is the shape of the spots on the leaf?", "Describe the pattern inside the largest brown spot.", "What color is the area immediately surrounding the lesion?", "Are the spots concentrated in the lower, middle, or upper part of the plant?", "Do any of the spots have a hole in the center?", "How many distinct rings can you count in the target-like lesion?"], "diagnosis_templates": ["What fungal disease is causing these target-like spots on the cotton leaf?", "Is this cotton plant showing symptoms of Alternaria leaf spot?", "Based on the concentric rings and necrotic centers, what is the likely diagnosis?"], "counterfactual_templates": ["If these spots were angular and bordered by veins, what disease would it be instead of Alternaria leaf spot?", "If the leaf was just turning red all over without any distinct spots, what could be the issue?"], "severity_templates": ["What percentage of this leaf's surface is covered by lesions?", "Would you classify the disease severity on this plant as mild, moderate, or severe?", "Are the individual spots merging to form larger dead patches on the leaf?"], "confounders": ["bacterial_blight", "leaf_reddening", "herbicide_growth_damage"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Diffuse, even lighting is optimal. Avoid hard shadows or direct sun glare that can obscure the texture and concentric rings within lesions.", "occlusion_notes": "The primary lesions used for diagnosis should be fully visible and not significantly covered by other leaves, stems, or debris."}, "provenance": {"created_by": "VQA Dataset Designer (Plant Pathology Expert)", "reviewed_by": "VQA Dataset Designer (Plant Pathology Expert)", "created_at": "2024-05-21T10:00:00Z", "updated_at": "2024-05-21T10:00:00Z", "sources": ["APS Compendium of Cotton Diseases", "University Extension Plant Pathology Guides", "Peer-reviewed plant pathology journals"]}}
+{"schema_version": "1.0.0", "disease_id": "cotton.disease_bacterial.bacterial_blight", "aliases": ["angular leaf spot", "blackarm", "bacterial boll rot", "vein blight"], "crop": {"common_name": "Cotton", "scientific_name": "Gossypium hirsutum", "family": "Malvaceae"}, "condition": {"common_name": "Bacterial Blight", "scientific_name": "Xanthomonas citri pv. malvacearum", "alt_names": ["Angular Leaf Spot", "Blackarm"], "pathogen": {"type": "disease_bacterial", "taxonomy": {"kingdom": "Bacteria", "phylum": "Pseudomonadota", "class": "Gammaproteobacteria", "order": "Xanthomonadales", "family": "Xanthomonadaceae", "genus": "Xanthomonas", "species": "X. citri"}}}, "issue_type": "disease_bacterial", "transmission": {"vectors": ["Wind-driven rain", "Insects (minor)"], "dispersal": ["Rain splash", "Irrigation water", "Contaminated seed", "Mechanical (tools, human contact)"], "overwintering": ["Infected crop debris", "On or within seeds", "Volunteer cotton plants"]}, "environmental_risk": {"risk_factors": ["High humidity", "Frequent rainfall", "Overhead irrigation", "Susceptible cultivars", "High nitrogen fertilization"], "temp_c_day": [30, 36], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 10}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-5% of leaf area affected. A few small, scattered, angular, water-soaked lesions are visible, often on lower leaves.", "moderate": "6-25% of leaf area affected. Lesions are numerous, may be coalescing along veins, and are present on middle and upper canopy. Some stem lesions ('blackarm') may be present.", "severe": ">25% of leaf area affected. Widespread lesion coalescence causing large necrotic areas, significant defoliation, and/or visible boll rot.", "notes": "Severity is primarily assessed by the percentage of symptomatic leaf area. The presence of stem (blackarm) or boll infections automatically elevates the assessment to at least 'moderate'."}, "symptoms": {"leaves": ["Small, water-soaked spots on the underside of the leaf, initially appearing translucent.", "Lesions become angular (vein-limited) as they expand.", "Spots turn dark brown to black and may look greasy.", "Lesions can coalesce along major veins, causing 'vein blight' and necrosis.", "A faint yellow halo may surround older lesions.", "Infected leaves may become distorted, tattered, and shed prematurely."], "stems": ["Elongated, sunken, dark brown to black lesions, a phase known as 'blackarm'.", "Stem girdling by lesions can cause wilting and death of the plant part above."], "fruit": ["Circular, water-soaked spots on bolls (fruit capsules).", "Boll lesions become sunken, turn black, and may feel firm.", "Infection can penetrate the boll, causing internal rot and staining of the lint.", "Young, infected bolls may drop from the plant."], "roots": [], "whole_plant": ["Seedling infection causes water-soaked lesions on cotyledons, potentially leading to 'damping-off'.", "Severe infections lead to stunted growth and reduced plant vigor."], "signs_microscopic_or_visible": ["Under high humidity, bacterial ooze (slime) may be visible on the surface of fresh lesions."]}, "lookalikes": [{"condition_name": "Alternaria Leaf Spot", "condition_id": "cotton.disease_fungal.alternaria_leaf_spot", "key_differences": ["Alternaria lesions are circular with characteristic concentric 'target-like' rings, not angular and vein-limited.", "Alternaria spots often have a tan or gray center with a dark or purplish border.", "Bacterial blight lesions appear water-soaked or greasy when fresh, while Alternaria spots are typically dry."]}, {"condition_name": "Verticillium Wilt", "condition_id": "cotton.disease_fungal.verticillium_wilt", "key_differences": ["Verticillium causes large areas of interveinal chlorosis and necrosis, often starting at the leaf margin, not distinct, small spots.", "Foliar symptoms from wilt often appear on only one side of a leaf or one side of the plant.", "Bacterial blight does not cause the characteristic brown or black discoloration of the vascular tissue seen when a wilt-infected stem is cut open."]}], "management": {"cultural": ["Plant certified, disease-free seed.", "Use acid-delinted seed to remove surface bacteria.", "Select and plant resistant cotton varieties.", "Promote good air circulation through proper plant spacing.", "Avoid overhead irrigation to minimize leaf wetness.", "Plow under crop debris after harvest to speed decomposition.", "Rotate with non-host crops for at least one year."], "biological": ["Some products containing *Bacillus* species are marketed for suppression, but efficacy varies."], "chemical": ["Use of bactericidal seed treatments.", "Preventative foliar sprays with copper-based bactericides can reduce spread but are not curative."], "notes": "An integrated approach using resistant cultivars and clean seed is the most effective and economical control strategy."}, "qa_seeds": {"verification_templates": ["Does this cotton leaf show any angular, water-soaked spots?", "Is there evidence of bacterial blight on this plant?", "Can you confirm the presence of vein-limited lesions?", "Are the spots on this leaf dark and greasy in appearance?", "Is the stem exhibiting symptoms of 'blackarm'?", "Does this cotton boll have sunken, black spots?"], "attribute_templates": ["What is the shape of the spots on the leaf?", "Are the lesions confined by the leaf veins?", "Describe the color and texture of the leaf spots.", "Are the lesions coalescing along a major vein?", "Is there a halo present around the lesions?", "What part of the plant is showing symptoms?"], "diagnosis_templates": ["Based on the angular, vein-limited, water-soaked lesions, what disease is this?", "What condition causes black, elongated lesions on cotton stems and angular spots on leaves?", "This cotton plant has greasy black spots on its leaves and bolls. What is the likely cause?"], "counterfactual_templates": ["If the spots were circular and had target rings, would it still be bacterial blight?", "If the main symptom was yellowing between the veins starting from the leaf edge, could this be bacterial blight?"], "severity_templates": ["What percentage of this leaf's surface is affected by bacterial blight?", "How would you rate the severity of this infection on a scale of mild, moderate, or severe?", "Are the lesions isolated or are they coalescing into larger necrotic areas?"], "confounders": ["Is this bacterial blight or alternaria leaf spot?", "Could the foliar symptoms be caused by verticillium wilt instead of bacterial blight?"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Use diffuse, even lighting. Avoid harsh, direct sun which can cause glare and obscure the characteristic 'water-soaked' or 'greasy' appearance of lesions.", "occlusion_notes": "Ensure the symptomatic leaf or plant part is clearly visible. The angular, vein-limited shape of the lesions is a key diagnostic feature and must not be obscured."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T11:30:00Z", "updated_at": "2023-10-27T11:30:00Z", "sources": ["APS Compendium of Cotton Diseases", "University Extension Plant Pathology Guides", "CABI Invasive Species Compendium"]}}
+{"schema_version": "1.0.0", "disease_id": "cotton.unknown.leaf_curl", "aliases": ["Cotton Leaf Curl Disease", "CLCuD", "CLCV"], "crop": {"common_name": "cotton", "scientific_name": "Gossypium hirsutum", "family": "Malvaceae"}, "condition": {"common_name": "leaf curl", "scientific_name": "Cotton leaf curl virus complex", "alt_names": ["Cotton Leaf Curl Disease"], "pathogen": {"type": "unknown", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "unknown", "transmission": {"vectors": ["Whitefly (Bemisia tabaci)"], "dispersal": ["Insect vector movement", "Infected planting material"], "overwintering": ["On perennial and alternate host plants (weeds)", "In surviving adult whiteflies"]}, "environmental_risk": {"risk_factors": ["High whitefly populations", "Warm, humid conditions favorable for vector multiplication", "Presence of alternate weed hosts near fields", "Monoculture of susceptible varieties"], "temp_c_day": [25, 38], "temp_c_night": [], "relative_humidity_pct": [60, 90], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Slight upward or downward curling on a few young leaves. Vein thickening may be subtle or absent.", "moderate": "Pronounced curling and cupping on multiple leaves, especially in the upper canopy. Vein thickening is obvious and small leaf-like enations may appear on the underside of veins.", "severe": "Severe stunting of the whole plant. Leaves are small, distorted, and leathery with prominent vein thickening and large enations. Boll formation is significantly reduced or absent.", "notes": "Severity is assessed based on the degree of leaf deformation and whole-plant stunting, as these are the most visually consistent indicators. Leaf wetness is not a primary driver for this vector-borne viral disease."}, "symptoms": {"leaves": ["Upward or downward curling of leaf margins.", "Leaf cupping, sometimes forming a distinct cup shape.", "Veins appear thickened and may darken.", "Development of small, leaf-like outgrowths (enations) on the underside of veins.", "Affected leaves feel leathery and brittle.", "Overall leaf size is reduced compared to healthy plants.", "In some cases, veins may appear transparent (vein clearing) in early stages."], "stems": ["Shortened internodes."], "fruit": ["Reduced number and size of bolls.", "Bolls may open prematurely or fail to develop."], "roots": [], "whole_plant": ["Stunted growth, resulting in a smaller plant.", "A bushy, compact appearance due to shortened internodes."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "herbicide growth damage", "condition_id": "cotton.abiotic.herbicide_growth_damage", "key_differences": ["Herbicide damage often appears in a distinct field pattern (e.g., edge of field, spray drift lines), while leaf curl distribution is tied to whitefly movement and can be more random.", "Hormone herbicide (e.g., 2,4-D) damage causes leaf strapping and parallel veins, which is distinct from the net-like vein thickening and enations of leaf curl.", "Leaf curl symptoms are systemic and progress on new growth, whereas herbicide injury affects all leaves present at the time of exposure.", "Enations (leaf-like outgrowths on veins) are unique to leaf curl and absent in herbicide damage."]}], "management": {"cultural": ["Planting of resistant or tolerant cotton varieties.", "Timely sowing to avoid peak whitefly populations.", "Removal and destruction of infected plants (roguing) early in the season.", "Management of alternate weed hosts in and around the field.", "Use of yellow sticky traps to monitor whitefly populations."], "biological": ["Conservation and encouragement of natural predators of whiteflies, such as lacewings and lady beetles."], "chemical": ["Seed treatment with systemic insecticides.", "Foliar application of appropriate insecticides to control whitefly vector populations, following economic thresholds."], "notes": "Management is primarily focused on controlling the whitefly vector and using resistant cultivars, as there is no direct chemical cure for the viral disease in an infected plant."}, "qa_seeds": {"verification_templates": ["Are the edges of the cotton leaves curled upwards?", "Do the veins on the leaf underside appear unusually thick?", "Can you see any small, leaf-like growths (enations) on the veins?", "Does the whole plant appear stunted compared to its neighbors?", "Is the plant taking on a bushy, compact form?", "Do the affected leaves feel leathery to the touch?"], "attribute_templates": ["Describe the appearance of the veins on the curled leaves.", "What is the primary direction of the leaf curling?", "What is the overall shape and stature of this cotton plant?", "Are there any growths on the back of the leaf veins?", "How does the texture of the symptomatic leaves compare to healthy ones?", "What color are the thickened veins?"], "diagnosis_templates": ["Given the upward leaf curling, thickened veins, and enations, what is the likely condition?", "Is this plant showing symptoms of cotton leaf curl disease?", "Based on the stunted, bushy growth and distorted leaves, what is your diagnosis?"], "counterfactual_templates": ["If the leaves were curled down with yellow edges but had no thickened veins, what could be the cause instead of leaf curl?", "What would you expect to see if this were herbicide damage instead of leaf curl?"], "severity_templates": ["Based on the severe stunting and distorted leaves with large enations, would you classify this as mild, moderate, or severe leaf curl?", "How severe is this case of leaf curl?", "Is this a mild infection, with only a few leaves showing slight curling?"], "confounders": ["herbicide_growth_damage", "leaf_hopper_jassids"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.4, "lighting_notes": "Diffuse, even lighting is best. Avoid hard shadows that can obscure vein thickening, enations, and overall leaf texture.", "occlusion_notes": "Ensure a clear view of the upper canopy and the underside of several symptomatic leaves. The overall plant structure should also be visible to assess stunting."}, "provenance": {"created_by": "expert_plant_pathologist_vqa_designer", "reviewed_by": "expert_plant_pathologist_vqa_designer", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["General university extension guides for cotton pathology", "APS Compendium of Cotton Diseases", "CABI Invasive Species Compendium"]}}
+{"schema_version": "1.0.0", "disease_id": "cotton.disease_fungal.fusarium_wilt", "aliases": ["Fusarium wilt of cotton", "Panama disease of cotton"], "crop": {"common_name": "Cotton", "scientific_name": "Gossypium hirsutum", "family": "Malvaceae"}, "condition": {"common_name": "Fusarium Wilt", "scientific_name": "Fusarium wilt", "alt_names": ["Panama disease"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Sordariomycetes", "order": "Hypocreales", "family": "Nectriaceae", "genus": "Fusarium", "species": "oxysporum"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": ["Root-knot nematodes (Meloidogyne incognita)"], "dispersal": ["Infected soil", "Contaminated farm equipment", "Infected seed", "Water (irrigation/runoff)"], "overwintering": ["Chlamydospores in soil", "Infected crop debris"]}, "environmental_risk": {"risk_factors": ["High soil temperatures", "Low soil pH (acidic)", "Presence of root-knot nematodes", "Poorly drained soils", "Sandy soils"], "temp_c_day": [25, 32], "temp_c_night": [], "relative_humidity_pct": []}, "severity_rubric": {"unit": "qualitative", "mild": "One or a few lower leaves showing yellowing or wilting. No significant stunting.", "moderate": "Significant portion of the plant (25-75%) shows wilting, chlorosis, and some leaf drop. Plant is visibly stunted.", "severe": "Entire plant is wilted, necrotic, or dead. Severe stunting. Vascular discoloration is prominent if stem is cut.", "notes": "Severity is assessed on a whole-plant basis, considering the percentage of foliage affected by wilting and chlorosis, and the degree of stunting compared to healthy plants."}, "symptoms": {"leaves": ["Interveinal chlorosis (yellowing between veins), often starting on lower leaves.", "Leaf margins turn yellow, then brown and necrotic.", "Affected leaves wilt, sometimes on only one side of the plant or one side of a leaf (sectoring).", "Premature defoliation (leaf drop), starting from the bottom of the plant."], "stems": ["Dark brown to black vascular discoloration (streaking) visible when the stem is cut longitudinally.", "Stunting of the main stem and branches."], "fruit": ["Bolls may be smaller than normal or fail to open properly."], "roots": ["Darkening or decay of the root system, though often not the primary external symptom."], "whole_plant": ["Sudden wilting of the entire plant, especially during the heat of the day, which may recover at night initially.", "Overall stunting and reduced plant vigor.", "Symptoms often appear in patches within a field."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "Verticillium Wilt", "condition_id": "cotton.disease_fungal.verticillium_wilt", "key_differences": ["Verticillium wilt symptoms (leaf mottling, chlorotic blotches) often appear higher on the plant first, while Fusarium typically starts on lower leaves.", "Vascular discoloration in Verticillium is often a lighter brown and may appear as flecks, whereas Fusarium is typically a dark brown to black continuous streak.", "Verticillium is favored by cooler temperatures (22-25°C), while Fusarium is favored by warmer temperatures (>27°C).", "Leaf symptoms in Verticillium often include large, angular, necrotic areas, which is less typical for Fusarium."]}, {"condition_name": "Herbicide Growth Damage", "condition_id": "cotton.abiotic.herbicide_growth_damage", "key_differences": ["Herbicide damage often shows distinct patterns related to spray application (e.g., rows, field edges), while Fusarium appears in more random patches.", "Herbicide-induced chlorosis may be uniform or have specific patterns (e.g., vein clearing, cupping) not typical of Fusarium's interveinal pattern.", "Herbicide damage will not show the characteristic dark vascular discoloration inside the stem.", "Wilting from herbicide is often accompanied by leaf distortion or strapping, which is absent in Fusarium wilt."]}, {"condition_name": "Leaf Reddening", "condition_id": "cotton.abiotic.leaf_reddening", "key_differences": ["Leaf reddening is a uniform or blotchy red/purple discoloration, not the distinct yellowing (chlorosis) followed by browning seen in Fusarium.", "Reddening is often a late-season physiological response to stress (e.g., nutrient deficiency, cool nights) and doesn't typically cause wilting.", "Fusarium causes wilting and necrosis, while physiological reddening is primarily a color change without significant tissue death or loss of turgor."]}], "management": {"cultural": ["Planting resistant varieties (most effective method).", "Crop rotation with non-host crops for several years.", "Managing root-knot nematodes populations.", "Improving soil drainage and avoiding waterlogging.", "Maintaining optimal soil pH and fertility to reduce plant stress."], "biological": ["Use of commercial biocontrol agents like *Trichoderma* spp. or non-pathogenic *Fusarium* strains."], "chemical": ["Soil fumigation in high-value or nursery situations (not typically economical for large-scale production).", "Fungicide seed treatments can provide some early-season protection against seedling infection."], "notes": "An integrated management approach focusing on resistant cultivars and nematode control is the most effective and sustainable strategy."}, "qa_seeds": {"verification_templates": ["Is the plant in the image showing signs of wilting?", "Can you see any yellowing between the veins on the lower leaves?", "Does this cotton plant appear stunted?", "Are the leaf margins turning brown and necrotic?", "Is there evidence of premature leaf drop on this plant?"], "attribute_templates": ["What color is the discoloration on the leaves?", "Where on the plant are the wilting symptoms most prominent?", "Describe the pattern of yellowing on the leaf.", "If the stem were cut open, what color would you expect the internal tissue to be?", "Is the wilting affecting the whole plant or just one side?"], "diagnosis_templates": ["Based on the interveinal chlorosis on the lower leaves and overall wilting, what disease is likely affecting this cotton plant?", "What soilborne fungal disease causes dark vascular streaking and wilting in cotton during warm weather?", "Is this cotton plant healthy or does it have fusarium wilt?"], "counterfactual_templates": ["If the symptoms were chlorotic mottling starting on the upper leaves, what other wilt disease might it be?", "If there was no wilting, but the leaves were uniformly red, what physiological condition could it be?", "What would the leaves look like if this plant were healthy?"], "severity_templates": ["How severe is the fusarium wilt infection on this plant: mild, moderate, or severe?", "Based on the extent of wilting and stunting, what is the severity level of this disease?"], "confounders": ["Could the symptoms shown be caused by verticillium wilt?", "Is it possible that this is herbicide damage instead of a disease?", "How can you distinguish these symptoms from a potassium deficiency, which also causes yellowing on lower leaf margins?"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Avoid harsh shadows or overexposure. Diffuse, even lighting is best to accurately capture leaf color and wilting.", "occlusion_notes": "Ensure symptomatic leaves are not heavily occluded by other leaves or weeds. A clear view of the overall plant structure is important for assessing stunting and wilting."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["General university extension plant pathology guides", "APS Compendium of Cotton Diseases", "Peer-reviewed plant pathology literature"]}}
+{"schema_version": "1.0.0", "disease_id": "cotton.healthy.healthy", "aliases": ["normal cotton", "unaffected cotton", "healthy growth"], "crop": {"common_name": "cotton", "scientific_name": "Gossypium hirsutum", "family": "Malvaceae"}, "condition": {"common_name": "healthy", "scientific_name": "", "alt_names": ["normal"], "pathogen": {"type": "physiological", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "healthy", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Optimal growing conditions", "Adequate sunlight (6+ hours direct)", "Balanced soil nutrition (especially Nitrogen, Phosphorus, Potassium)", "Consistent and adequate water supply", "Well-drained soil"], "temp_c_day": [25, 35], "temp_c_night": [18, 24], "relative_humidity_pct": [50, 70], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Not applicable. Plant is healthy.", "moderate": "Not applicable. Plant is healthy.", "severe": "Not applicable. Plant is healthy.", "notes": "Severity is not applicable for a healthy condition. This rubric is a placeholder. Any visible defect would classify the plant as having a different condition."}, "symptoms": {"leaves": ["Uniformly green color, without spots, lesions, or discoloration.", "Fully expanded and turgid, showing no signs of wilting or drooping.", "Characteristic palmate shape with 3-5 lobes, free from distortion, cupping, or puckering.", "Smooth leaf surfaces and margins, without pustules, webbing, or frass.", "Veins and interveinal areas are the same shade of green."], "stems": ["Sturdy, upright, and typically green to reddish-brown.", "Free of cankers, galls, lesions, or unusual swelling."], "fruit": ["Squares (flower buds) are green, firm, and well-formed without spots or insect damage.", "Flowers open as creamy-white or yellow and senesce to pink/purple normally.", "Bolls (fruit) are green, firm, and uniformly shaped, free from spots, rot, or staining."], "roots": [], "whole_plant": ["Exhibits vigorous, upright growth appropriate for its developmental stage.", "Appears well-hydrated and robust.", "Produces squares, flowers, and bolls in a normal developmental sequence."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "leaf_reddening", "condition_id": "cotton.physiological.leaf_reddening", "key_differences": ["Healthy leaves are uniformly green, while reddened leaves display a distinct reddish-purple discoloration, often starting at the margins.", "In reddening, interveinal areas turn red while veins may remain green; healthy leaves have uniform color across both.", "Reddening is a sign of stress (e.g., nutrient deficiency, cool temperatures), whereas healthy plants show no stress symptoms."]}, {"condition_name": "herbicide_growth_damage", "condition_id": "cotton.abiotic.herbicide_growth_damage", "key_differences": ["Healthy leaves have a normal, well-defined palmate shape; herbicide damage often causes distorted, cupped, or strapped (narrowed) leaves.", "Healthy growth is uniform and upright; herbicide damage can cause twisted stems and abnormal growth, especially at the terminals.", "Healthy leaves are uniformly green; some herbicide damage can cause chlorosis (yellowing) or bleaching, particularly on new growth."]}, {"condition_name": "leaf_variegation", "condition_id": "cotton.genetic.leaf_variegation", "key_differences": ["Healthy leaves have a solid, uniform green color, while variegated leaves show stable, patterned patches of white, yellow, or light green.", "Variegation is typically a genetic trait with a distinct, often symmetrical pattern; a healthy leaf's color is homogenous.", "The boundary between colors is sharp in variegation, unlike the diffuse discoloration from disease or deficiency."]}], "management": {"cultural": ["Plant certified, high-quality seed of an appropriate variety.", "Maintain optimal soil fertility based on soil testing.", "Provide consistent and timely irrigation to avoid water stress.", "Implement effective weed management to reduce competition.", "Monitor for pests and diseases regularly."], "biological": [], "chemical": [], "notes": "Management for a healthy crop focuses on proactive cultural practices that provide optimal growing conditions and minimize plant stress."}, "qa_seeds": {"verification_templates": ["Does this image show a healthy cotton plant?", "Is the plant in the image free from any visible signs of disease, pests, or stress?", "Are the leaves in the image uniformly green and well-formed?", "Confirm that there are no spots, lesions, or distortions on the plant.", "Does the plant exhibit vigorous, upright growth?"], "attribute_templates": ["What is the color of the leaves?", "Describe the shape and texture of the leaves.", "Are the leaves turgid or wilted?", "Are there any spots, holes, or discoloration on the leaves?", "What is the overall appearance of the plant's posture?", "Describe any visible bolls or squares."], "diagnosis_templates": ["What is the condition of this cotton plant?", "Is this cotton plant healthy or is it showing symptoms of a problem?", "Based on the uniform green color and lack of lesions, what is the plant's condition?"], "counterfactual_templates": ["If the leaves were reddish-purple instead of green, what condition might it be?", "What would you expect to see if this plant were suffering from herbicide damage?", "If the leaves had stable patterns of white and green, what would be the diagnosis?"], "severity_templates": ["How would you rate the health of this plant?", "Is this plant showing any signs that would downgrade its health status from 'healthy'?", "On a scale of 1 to 5, where 5 is perfectly healthy, how would you rate this plant?"], "confounders": ["leaf_reddening", "herbicide_growth_damage", "leaf_variegation"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse lighting is preferred. Avoid harsh shadows or overexposure that can wash out leaf color or obscure texture.", "occlusion_notes": "The primary leaves and growth points should be clearly visible and not significantly occluded by other leaves, branches, or background objects."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["General university extension guides for cotton production", "APS Compendium of Cotton Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "cotton.unknown.herbicide_growth_damage", "aliases": ["herbicide injury", "herbicide drift damage", "2,4-D damage", "dicamba damage", "phenoxy herbicide injury"], "crop": {"common_name": "Cotton", "scientific_name": "Gossypium hirsutum", "family": "Malvaceae"}, "condition": {"common_name": "Herbicide Growth Damage", "scientific_name": null, "alt_names": ["Herbicide phytotoxicity", "Phenoxy herbicide injury"], "pathogen": {"type": "abiotic", "taxonomy": {"kingdom": null, "phylum": null, "class": null, "order": null, "family": null, "genus": null, "species": null}}}, "issue_type": "unknown", "transmission": {"vectors": [], "dispersal": ["Wind drift (spray particles)", "Vapor drift (volatilization)"], "overwintering": []}, "environmental_risk": {"risk_factors": ["High wind speeds during application (>10 mph)", "High temperatures causing volatilization", "Low humidity", "Temperature inversions", "Proximity to fields where phenoxy or other susceptible herbicides are applied"], "temp_c_day": [29], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Slight cupping or strapping on a few new leaves; plant growth is not significantly stunted.", "moderate": "Pronounced cupping, strapping, and distortion on most new growth; some stunting of the plant is visible.", "severe": "Severe distortion, epinasty, and 'strapping' of most leaves; significant stunting or death of the terminal growing point.", "notes": "Severity is assessed based on the degree of malformation of new growth and overall plant stunting, as damage typically affects the growing points active at the time of exposure."}, "symptoms": {"leaves": ["Newest leaves are malformed, often cupped downwards or upwards.", "Leaves appear narrow and elongated, a symptom known as 'strapping'.", "Leaf veins appear parallel and closely spaced, resembling 'parallel veining' of a monocot.", "Leaf margins are crinkled, puckered, or have a savoyed (bumpy) texture.", "Petioles are twisted or bent downwards (epinasty)."], "stems": ["Stems, especially near the terminal, may be twisted, bent, or brittle.", "Callus tissue or swelling may form on the stem."], "fruit": ["Young squares (flower buds) may be deformed, turn yellow, and be shed from the plant.", "Bolls that form after exposure may be small, misshapen, or fail to develop properly."], "roots": [], "whole_plant": ["Overall plant growth is stunted compared to healthy plants.", "Symptoms are most prominent on the newest growth that was developing at the time of exposure.", "Damage may appear in a pattern across the field (e.g., on the edge) corresponding to drift direction."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "Leaf Curl", "condition_id": "cotton.viral.leaf_curl", "key_differences": ["Viral leaf curl often causes upward leaf curling and prominent, thickened, darkened veins on the underside of leaves.", "Herbicide damage causes strapping (narrowing) and parallel-looking veins, which are not typical of leaf curl virus.", "Viral leaf curl may be accompanied by small, leaf-like outgrowths (enations) on the veins, which are absent in herbicide damage.", "The presence of whiteflies, the vector for the virus, may suggest leaf curl as a possibility."]}], "management": {"cultural": ["Avoid spraying phenoxy-type herbicides near susceptible cotton fields, especially during windy conditions.", "Use drift-reducing nozzles, lower spray pressure, and appropriate boom height.", "Follow herbicide label instructions regarding wind speed, temperature, and required buffer zones.", "If damage is suspected, document it with photos and collect tissue samples promptly for residue analysis."], "biological": [], "chemical": ["There is no chemical treatment to reverse herbicide damage.", "Applying supplemental nutrients or biostimulants may help the plant mitigate stress and recover, but will not cure the damage."], "notes": "Management is entirely preventative. Once damage has occurred, the focus is on mitigating stress to encourage new, unaffected growth, assuming the growing point survives."}, "qa_seeds": {"verification_templates": ["Does this cotton plant show signs of herbicide injury?", "Is the new growth on this plant malformed or distorted?", "Are the leaves cupped or strapped?", "Can you see evidence of epinasty, where the stems or petioles are twisted?", "Is the damage concentrated on the upper, newer leaves?"], "attribute_templates": ["What type of malformation is visible on the leaves?", "Describe the shape of the newest leaves.", "Do the leaf veins look abnormally parallel?", "What part of the plant is most affected?", "Is the overall plant stunted in growth?"], "diagnosis_templates": ["What abiotic stress is causing the leaves to become strapped and cupped?", "Based on the leaf malformation, what is the likely cause of these symptoms?", "Why are the new leaves on this cotton plant deformed in this manner?"], "counterfactual_templates": ["If this were viral leaf curl, what other symptom might be present on the veins?", "If the leaf margins were turning reddish-brown, what would be a more likely cause?", "What would the leaves look like if the plant were healthy?"], "severity_templates": ["How severe is the herbicide damage on this plant?", "Is the terminal growing point of the plant still viable?", "Based on the degree of leaf distortion, would you classify this damage as moderate or severe?"], "confounders": ["leaf_curl", "leaf_hopper_jassids", "leaf_variegation"]}, "data_requirements": {"min_resolution_px": 1024, "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse lighting is best. Avoid harsh shadows that can obscure subtle leaf cupping and shape distortion.", "occlusion_notes": "The terminal bud and newest, most affected leaves must be clearly visible and in focus. Avoid images where these key symptoms are obscured by other leaves or plants."}, "provenance": {"created_by": "VQA Dataset Designer (Expert Plant Pathologist)", "reviewed_by": "", "created_at": "2024-05-21T10:00:00Z", "updated_at": "2024-05-21T10:00:00Z", "sources": ["University Extension Plant Pathology and Weed Science Guides", "Compendium of Cotton Diseases", "Weed Science Society of America (WSSA) Herbicide Injury Guides"]}}
+{"schema_version": "1.0.0", "disease_id": "cotton.pest_insect.leaf_hopper_jassids", "aliases": ["Jassids", "Cotton jassids", "Leafhopper burn", "Hopperburn"], "crop": {"common_name": "cotton", "scientific_name": "Gossypium hirsutum", "family": "Malvaceae"}, "condition": {"common_name": "Leaf hopper jassids", "scientific_name": "Amrasca biguttula biguttula", "alt_names": ["Cotton jassid", "Leafhopper"], "pathogen": {"type": "insect", "taxonomy": {"kingdom": "Animalia", "phylum": "Arthropoda", "class": "Insecta", "order": "Hemiptera", "family": "Cicadellidae", "genus": "Amrasca", "species": "biguttula biguttula"}}}, "issue_type": "pest_insect", "transmission": {"vectors": [], "dispersal": ["Adult insect flight", "Wind-assisted dispersal of adults"], "overwintering": ["On alternate host plants (e.g., okra, potato, eggplant)", "In crop debris", "As adults in sheltered locations"]}, "environmental_risk": {"risk_factors": ["Warm and humid conditions, especially during the rainy season followed by dry spells.", "Lush, succulent plant growth, often from excessive nitrogen fertilizer.", "Presence of alternate weed hosts near the field.", "Absence or reduction of natural predators."], "temp_c_day": [25, 35], "temp_c_night": [], "relative_humidity_pct": [60, 85], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Slight yellowing along leaf margins on a few upper leaves. Nymphs or adults may be visible on the underside of leaves.", "moderate": "Pronounced yellowing and downward curling of leaf margins ('hopperburn') on multiple leaves. Some leaves show reddening or browning at the edges.", "severe": "Widespread 'hopperburn' with leaves turning brick red, becoming brittle, and eventually shedding. Plant growth is visibly stunted.", "notes": "Severity is assessed based on the extent of 'hopperburn' symptoms (yellowing, reddening, curling of leaf margins) and the proportion of foliage affected, which reflects pest population density."}, "symptoms": {"leaves": ["Initial yellowing appears along the margins and tips of leaves.", "Leaf margins curl downwards and inwards, creating a cupped or inverted boat shape.", "Affected leaf edges progressively turn reddish-brown to brick red, a symptom known as 'hopperburn'.", "In severe cases, the entire leaf becomes brittle, dries up, and sheds prematurely.", "Tiny, pale green, wedge-shaped nymphs are visible on the underside of leaves.", "Nymphs characteristically move sideways (crab-like) when disturbed.", "Honeydew excretions on lower leaves may support the growth of black sooty mold."], "stems": ["Internodal length may be reduced under heavy infestation."], "fruit": ["Poor boll development and shedding of young bolls can occur due to reduced plant vigor."], "roots": [], "whole_plant": ["Overall plant growth is stunted, resulting in a withered appearance."], "signs_microscopic_or_visible": ["Presence of pale green, wedge-shaped nymphs on leaf undersides.", "Presence of mobile, greenish-yellow adult leafhoppers that jump or fly when disturbed.", "White, shed skins (exuviae) of nymphs stuck to the undersides of leaves."]}, "lookalikes": [{"condition_name": "Leaf curl", "condition_id": "cotton.viral_disease.leaf_curl", "key_differences": ["Leafhopper damage causes downward curling of margins; Leaf Curl Virus causes upward or downward curling of the entire leaf, often with thickening and swelling of veins.", "Hopperburn's characteristic marginal yellowing and reddening is not a primary symptom of Leaf Curl Virus.", "Leaf Curl Virus can cause enations (small leaf-like outgrowths) on veins, which are absent with leafhopper damage.", "The insect present for Leaf Curl is the whitefly, not the greenish, wedge-shaped leafhopper jassid."]}, {"condition_name": "Herbicide growth damage", "condition_id": "cotton.abiotic.herbicide_growth_damage", "key_differences": ["Herbicide damage often causes strapping, cupping, or uniform twisting of new growth, whereas leafhopper damage is more randomly distributed based on pest location.", "The distinct 'hopperburn' symptom (marginal yellowing to reddening) is absent in most cases of herbicide injury.", "Leafhopper insects (nymphs/adults) are present with jassid damage but absent with herbicide damage."]}], "management": {"cultural": ["Planting early-maturing and tolerant/resistant varieties.", "Avoiding excessive nitrogen fertilization which promotes succulent growth favored by jassids.", "Maintaining field sanitation and removing weed hosts from around the field.", "Timely sowing to avoid peak pest populations."], "biological": ["Conservation and encouragement of natural predators like lacewings, lady beetles, and spiders."], "chemical": ["Application of systemic insecticides as seed treatments to protect early growth stages.", "Foliar sprays with recommended insecticides when pest populations cross the economic threshold level (ETL).", "Rotating insecticide classes to prevent the development of resistance."], "notes": "Monitor fields regularly, especially during early crop stages. Economic Threshold Levels (ETLs) are typically based on the number of nymphs per leaf."}, "qa_seeds": {"verification_templates": ["Are the edges of the cotton leaf curling downwards?", "Is the margin of the leaf turning yellow or red?", "Can you see any small, pale green, wedge-shaped insects on the underside of the leaf?", "Does the leaf look burnt or brittle at the tips?", "When you touch the leaf, do any small insects hop or fly away?"], "attribute_templates": ["What color is the discoloration on the leaf edge?", "In which direction are the leaves curling?", "Describe the appearance and movement of any insects you see on the leaf underside.", "Where on the leaf did the yellowing begin?", "Is the damage concentrated on the leaf margins or spread across the entire leaf?"], "diagnosis_templates": ["Based on the downward curling and reddened margins, could this be leaf hopper damage?", "Given the presence of small, sideways-moving nymphs on the leaf underside, what is the likely pest?", "Is the primary issue causing the leaves to look burnt a pest infestation or a nutrient problem?"], "counterfactual_templates": ["If the leaves were curling upwards and had swollen veins, what other condition might you suspect?", "What would you expect to see if this was a fungal disease like Alternaria leaf spot instead of insect damage?", "If the reddening covered the whole leaf uniformly without curled margins, what would be a more likely cause?"], "severity_templates": ["How would you rate the severity of the hopperburn: mild, moderate, or severe?", "Are the affected leaves just yellow at the edges, or have they turned brick-red and brittle?", "What percentage of the plant's leaves show symptoms of hopperburn?"], "confounders": ["leaf_reddening", "leaf_curl", "herbicide_growth_damage"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.4, "lighting_notes": "Use diffuse, bright light. Avoid harsh shadows or overexposure, which can hide pale nymphs and subtle marginal yellowing.", "occlusion_notes": "Ensure the symptomatic leaf margins are fully visible. Images of the leaf underside are critical for confirming the presence of jassid nymphs or their shed skins."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["University extension guides for cotton pest management", "APS Compendium of Cotton Diseases and Pests", "General entomology and integrated pest management (IPM) literature"]}}
+{"schema_version": "1.0.0", "disease_id": "cotton.physiological_symptom.leaf_reddening", "aliases": ["red leaf disorder", "autumn reddening", "physiological red leaf", "anthocyanosis"], "crop": {"common_name": "cotton", "scientific_name": "Gossypium hirsutum", "family": "Malvaceae"}, "condition": {"common_name": "leaf reddening", "scientific_name": null, "alt_names": ["red leaf", "anthocyanin accumulation"], "pathogen": {"type": "physiological", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "physiological_symptom", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Nutrient deficiency (especially Nitrogen, Magnesium, Phosphorus)", "Cool temperatures, particularly at night, late in the season", "Drought stress or waterlogged soil", "Soil compaction restricting root growth", "Heavy boll load placing high demand on the plant", "Natural late-season senescence"], "temp_c_day": [10, 20], "temp_c_night": [5, 15], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "< 25% of the leaf surface shows reddening, often confined to margins or interveinal areas.", "moderate": "25-75% of the leaf surface is red or purplish; veins may still be green.", "severe": "> 75% of the leaf surface is deep red or bronze; leaves may be brittle and senesce.", "notes": "Severity is assessed on individual, fully expanded leaves in the upper to mid canopy. Can also be assessed at the whole-plant level by estimating the percentage of affected leaves."}, "symptoms": {"leaves": ["Leaves turn from green to yellow, then to shades of red, purple, or bronze.", "Discoloration often begins at the leaf margins and progresses inward between the main veins.", "Major leaf veins frequently remain green, creating a stark contrast with the red tissue.", "Symptoms typically appear first on older, lower leaves, but can affect the whole plant under severe stress.", "The entire leaf blade may become uniformly deep red in advanced stages.", "Affected leaves can become thick, leathery, and brittle.", "Premature defoliation of red leaves can occur."], "stems": ["Stems generally remain green and appear healthy."], "fruit": ["Boll size and development may be reduced if reddening is caused by severe, early-season stress."], "roots": [], "whole_plant": ["Symptoms may appear on scattered individual plants or in patches across a field, corresponding to soil variations or stress patterns.", "Plant growth may be stunted if the underlying stress factor is chronic."], "signs_microscopic_or_visible": ["Absence of any pathogen signs, such as fungal growth, spores, pycnidia, or bacterial ooze."]}, "lookalikes": [{"condition_name": "verticillium_wilt", "condition_id": "cotton.fungal.verticillium_wilt", "key_differences": ["Verticillium wilt causes interveinal chlorosis (yellowing) that turns into brown necrosis (dead tissue), not a primary red color.", "Wilt symptoms are often one-sided, affecting half a leaf, a single branch, or one side of the plant.", "Cutting the main stem of a wilted plant will reveal distinct browning or streaking of the vascular tissue.", "Affected leaves typically wilt during the day and may recover at night, which is not characteristic of reddening."]}, {"condition_name": "leaf_hopper_jassids", "condition_id": "cotton.insect.leaf_hopper_jassids", "key_differences": ["Jassid damage ('hopperburn') creates a V-shaped yellowing and browning pattern starting at the leaf tip and margins.", "Leaf margins curl downwards and become brittle and brown, not uniformly red.", "Small, green, wedge-shaped jassid insects or their white cast skins may be visible on the underside of leaves.", "The discoloration is a result of toxin injection during feeding, not a systemic physiological response."]}, {"condition_name": "alternaria_leaf_spot", "condition_id": "cotton.fungal.alternaria_leaf_spot", "key_differences": ["Alternaria presents as discrete, circular lesions, often with a characteristic 'target spot' or concentric ring pattern.", "Lesions are typically tan, grey, or dark brown, sometimes with a purple border, but do not cause the entire leaf to turn red.", "Lesions can fall out, creating a 'shot-hole' appearance.", "This is a fungal disease, so it presents as spots, not a uniform blush of color across the leaf lamina."]}], "management": {"cultural": ["Maintain balanced soil fertility through soil testing, paying close attention to nitrogen, magnesium, and phosphorus levels.", "Ensure proper irrigation to avoid both drought stress and waterlogging.", "Alleviate soil compaction to promote healthy root development.", "Select cotton varieties that are well-adapted to the local environment and less prone to premature senescence."], "biological": [], "chemical": ["Apply foliar sprays of specific nutrients (e.g., magnesium sulfate, potassium nitrate) if a deficiency is confirmed by tissue analysis.", "Use plant growth regulators judiciously to manage plant growth and boll load, reducing plant stress."], "notes": "Management is preventative and focuses on identifying and correcting the underlying abiotic stressor. Once leaves turn red, the condition is often irreversible for that leaf."}, "qa_seeds": {"verification_templates": ["Does the leaf in the image show red or purplish discoloration?", "Is the primary symptom a change in leaf color to red?", "Can you confirm the presence of reddening on these cotton leaves?", "Are the leaves in the photo turning red?", "Is the discoloration on the leaf red/purple rather than yellow/brown?", "Does this look like a cotton leaf with red coloration?"], "attribute_templates": ["Are the leaf veins still green while the rest of the leaf is red?", "Where is the red color located on the leaf?", "What percentage of the leaf is red?", "Describe the color of the leaf.", "Is the reddening uniform across the leaf blade or does it start at the margins?", "Are there any distinct spots or lesions on the red leaf?"], "diagnosis_templates": ["What physiological disorder causes cotton leaves to turn red while veins stay green?", "Based on the uniform reddening and lack of pathogen signs, what is the issue?", "Is this cotton plant suffering from physiological leaf reddening?", "What is the likely diagnosis for a cotton leaf that is red and brittle?"], "counterfactual_templates": ["If this were verticillium wilt, what would be different about the leaf's appearance?", "What signs would you look for on the underside of the leaf to confirm this is not jassid damage?", "How would this leaf look different if it were infected with alternaria leaf spot?"], "severity_templates": ["On a scale of mild, moderate, or severe, how would you rate this leaf reddening?", "What percentage of the leaf surface area has turned red?", "Is the reddening limited to the leaf margins, or does it cover more than half the leaf?"], "confounders": ["verticillium_wilt", "leaf_hopper_jassids", "alternaria_leaf_spot"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.4, "lighting_notes": "Use even, diffuse light. Avoid harsh, direct sun which can cause glare and wash out the red and purple hues. Overcast days are ideal.", "occlusion_notes": "The symptomatic leaf should be the primary subject. Ensure at least 75% of the leaf blade is visible and not obscured by other leaves, stems, or shadows."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2024-05-21T10:00:00Z", "updated_at": "2024-05-21T10:00:00Z", "sources": ["University extension guides for cotton production", "APS Compendium of Cotton Diseases", "Agronomy field guides and publications on plant nutrition"]}}
+{"schema_version": "1.0.0", "disease_id": "cotton.physiological_symptom.leaf_variegation", "aliases": ["Genetic variegation", "chimerism", "mosaic pattern variegation"], "crop": {"common_name": "Cotton", "scientific_name": "Gossypium hirsutum", "family": "Malvaceae"}, "condition": {"common_name": "Leaf Variegation", "scientific_name": "", "alt_names": ["Genetic variegation", "Chimerism"], "pathogen": {"type": "physiological_symptom", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "physiological_symptom", "transmission": {"vectors": [], "dispersal": ["Genetic (seed-borne mutation)", "Somatic mutation (chimera)"], "overwintering": []}, "environmental_risk": {"risk_factors": ["Genetic predisposition"], "temp_c_day": [], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "Less than 10% of the leaf surface shows variegation; patterns are small or isolated to a few leaves.", "moderate": "10-40% of the leaf surface shows variegation; patterns are distinct and present on multiple leaves.", "severe": "Over 40% of the leaf surface is variegated, potentially affecting entire leaves or large sectors of the plant.", "notes": "Severity measures the extent of the variegated tissue on a single representative leaf. It is not an indicator of plant health decline, as variegation is often a stable genetic trait."}, "symptoms": {"leaves": ["Irregular patches of white, cream, or yellow tissue on an otherwise green leaf blade.", "The boundary between green and non-green areas is typically sharp and well-defined.", "Variegated patterns can be splotchy, sectoral (affecting a large wedge of the leaf), or marginal (along the edges).", "Affected areas lack normal green chlorophyll pigmentation.", "Variegation patterns are often asymmetrical and do not follow vein patterns.", "The leaf shape and texture are generally normal, without distortion, curling, or necrosis.", "Symptoms are stable throughout the season and do not spread from plant to plant."], "stems": ["Occasionally, stems may also show streaks or sectors of non-pigmented tissue."], "fruit": ["Bolls (fruit) are typically unaffected and appear normal."], "roots": [], "whole_plant": ["Variegation may affect a single branch, a few leaves, or the entire plant, depending on the nature of the mutation (chimera)."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "Herbicide Growth Damage", "condition_id": "cotton.physiological_symptom.herbicide_growth_damage", "key_differences": ["Herbicide damage often causes leaf distortion, cupping, or strapping, which is absent in genetic variegation.", "Chlorosis from herbicide is often mottled or interveinal, not the sharply defined white/cream patches of variegation.", "Herbicide damage patterns often relate to spray drift (e.g., affecting one side of the plant), whereas variegation is typically random or sectoral."]}, {"condition_name": "Bacterial Blight", "condition_id": "cotton.disease_bacterial.bacterial_blight", "key_differences": ["Bacterial blight lesions are initially water-soaked and angular (limited by veins), later turning black and necrotic, unlike the stable, non-necrotic patches of variegation.", "Variegated areas are defined by a lack of pigment, not by tissue death (necrosis).", "Blight lesions often have a greasy appearance and can affect leaf veins, causing 'blackarm' on stems, which is absent in variegation."]}, {"condition_name": "Verticillium Wilt", "condition_id": "cotton.disease_fungal.verticillium_wilt", "key_differences": ["Verticillium wilt causes chlorosis that is typically interveinal, starting at the leaf margins and progressing inward, often affecting one side of the leaf or plant.", "Wilt symptoms (drooping leaves) and vascular discoloration (browning inside the stem) are key signs of Verticillium, absent in variegation.", "The chlorotic tissue in Verticillium wilt often becomes necrotic and brown over time, unlike the stable white/yellow of variegation."]}], "management": {"cultural": ["No management is required as this is a physiological/genetic trait and not a disease.", "If variegation is severe and associated with poor vigor, rogueing affected plants may be considered in breeding programs."], "biological": [], "chemical": [], "notes": "This condition does not spread and typically has a negligible impact on yield unless a very large portion of the plant's photosynthetic area is affected."}, "qa_seeds": {"verification_templates": ["Is this cotton leaf variegated?", "Does the image show a leaf with patches of white or yellow tissue?", "Can you confirm the presence of chimerism on this plant?", "Is there evidence of genetic variegation on the leaves?", "Are there distinct, non-necrotic, depigmented areas on the leaf blade?"], "attribute_templates": ["What color are the variegated patches on the leaf?", "Describe the pattern of variegation on this leaf.", "Are the borders between the green and white areas sharp or diffuse?", "Is the leaf shape normal or distorted?", "Does the variegation affect the whole leaf or just a sector of it?", "Are the variegated areas necrotic or healthy-looking?"], "diagnosis_templates": ["What physiological condition is causing the white patches on this cotton leaf?", "Based on the sharp, non-necrotic white patterns, what is the condition of this plant?", "Is the plant suffering from a disease or a genetic condition like variegation?"], "counterfactual_templates": ["If the leaf were also curled and distorted, would this still be considered genetic variegation?", "If the white patches were water-soaked and turning black, what disease might it be instead?"], "severity_templates": ["What percentage of this leaf's area is affected by variegation?", "How would you rate the severity of variegation on this leaf: mild, moderate, or severe?", "Is the variegation extensive enough to be considered severe?"], "confounders": ["herbicide_growth_damage", "bacterial_blight", "verticillium_wilt"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Avoid harsh shadows or overexposure that can wash out the color differences between green and variegated tissue.", "occlusion_notes": "The key symptom is the pattern on the leaf blade; ensure this is not significantly occluded by other leaves or debris."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27", "updated_at": "2023-10-27", "sources": ["University Extension Guides for Cotton Production", "APS Compendium of Cotton Diseases", "Plant Physiology Textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "cotton.disease_fungal.verticillium_wilt", "aliases": ["vert wilt", "cotton wilt"], "crop": {"common_name": "cotton", "scientific_name": "Gossypium hirsutum", "family": "Malvaceae"}, "condition": {"common_name": "Verticillium wilt", "scientific_name": "Verticillium dahliae", "alt_names": [], "pathogen": {"type": "fungus", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Sordariomycetes", "order": "Glomerellales", "family": "Plectosphaerellaceae", "genus": "Verticillium", "species": "dahliae"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": ["contaminated farm equipment", "irrigation water"], "dispersal": ["soilborne microsclerotia", "infected plant debris", "windblown soil"], "overwintering": ["microsclerotia in soil", "infected crop residue"]}, "environmental_risk": {"risk_factors": ["cool soil temperatures during early season growth", "excessive nitrogen fertilization", "high soil moisture or poor drainage", "co-infection with nematodes"], "temp_c_day": [22, 28], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Scattered lower leaves show marginal or interveinal chlorosis. No significant stunting or wilting.", "moderate": "Widespread chlorosis and necrosis on lower and mid-canopy leaves. Some defoliation and moderate stunting are visible. Wilting may occur during peak heat.", "severe": "Extensive defoliation, severe stunting, and permanent wilting of the entire plant, often leading to plant death. Bolls are small, fail to open, or are shed.", "notes": "Severity is best assessed at the whole-plant level, focusing on the extent of wilting, defoliation, and stunting. Vascular staining in the stem is a key diagnostic but requires destructive sampling. Leaf wetness is not a primary driver for this soilborne disease."}, "symptoms": {"leaves": ["Interveinal chlorosis (yellowing between veins), often starting on lower leaves.", "Chlorotic areas develop into necrotic (brown, dead) tissue, creating a mottled or 'tiger-stripe' pattern.", "Symptoms often appear on only one side of a leaf or one side of the plant (sectoring).", "Affected leaves may wilt and curl upwards at the margins.", "Premature shedding of symptomatic leaves, starting from the bottom of the plant."], "stems": ["Dark brown to black discoloration of the vascular tissue (xylem) visible when the stem is cut longitudinally or in cross-section.", "Stunting of the main stem and branches, leading to a compressed plant structure."], "fruit": ["Bolls may be smaller than normal or fail to develop.", "Premature opening of bolls, resulting in low-quality, discolored lint."], "roots": ["Vascular discoloration from the stem often extends into the taproot."], "whole_plant": ["General stunting and reduced vigor compared to healthy plants.", "Wilting during the hottest part of the day, which may recover overnight in early stages.", "Asymmetrical growth or dieback on one side of the plant."], "signs_microscopic_or_visible": ["Microsclerotia (small, black, persistent fungal structures) may form in dead plant tissue but are difficult to see without magnification."]}, "lookalikes": [{"condition_name": "Fusarium wilt", "condition_id": "cotton.disease_fungal.fusarium_wilt", "key_differences": ["Fusarium wilt is favored by warmer temperatures (>29°C), while Verticillium prefers cooler temperatures (<28°C).", "Fusarium wilt often causes a more rapid, uniform yellowing and wilting of the entire plant, whereas Verticillium symptoms can be one-sided (sectoring).", "Vascular discoloration in Fusarium is typically a lighter brown, whereas Verticillium causes a very dark brown or black discoloration.", "Fusarium wilt is almost always associated with root-knot nematode damage, which causes galls on roots."]}, {"condition_name": "Bacterial blight", "condition_id": "cotton.disease_bacterial.bacterial_blight", "key_differences": ["Bacterial blight lesions are distinctly angular and water-soaked, confined by leaf veins, unlike the interveinal pattern of Verticillium.", "Bacterial blight does not cause systemic wilting or internal vascular discoloration of the main stem.", "Bacterial blight can also cause black, elongated lesions on stems ('blackarm') and water-soaked spots on bolls."]}, {"condition_name": "Leaf reddening", "condition_id": "cotton.physiological_disorder.leaf_reddening", "key_differences": ["Leaf reddening is characterized by a red or purple pigmentation, not the yellow (chlorosis) and brown (necrosis) of Verticillium.", "Reddening is a physiological response (e.g., to nutrient deficiency, cool nights) and does not involve wilting or vascular discoloration.", "The discoloration in leaf reddening often starts at the leaf margin and progresses inward, affecting the entire leaf."]}], "management": {"cultural": ["Planting resistant or tolerant cultivars is the primary management strategy.", "Crop rotation with non-host crops like sorghum or wheat for at least two years.", "Manage irrigation to prevent waterlogging and reduce soil moisture stress.", "Maintain balanced soil fertility, avoiding excessive nitrogen.", "Sanitation by shredding and incorporating crop residue deeply to speed decomposition."], "biological": ["Application of soil amendments or beneficial microbes (e.g., Trichoderma spp.) may help suppress the pathogen, but results can be inconsistent."], "chemical": ["Pre-plant soil fumigation in severely infested fields, though often not economically feasible.", "Fungicide seed treatments can provide some early-season suppression but do not offer season-long control."], "notes": "Effective management requires an integrated approach centered on cultivar resistance and cultural practices. In-season fungicide applications are not effective for controlling this soilborne disease."}, "qa_seeds": {"verification_templates": ["Is there yellowing between the veins of the leaves?", "Does the plant look stunted or wilted, especially on one side?", "Are the symptoms worse on the lower leaves compared to the top leaves?", "Can you see dead, brown tissue within the yellowed areas of the leaves?", "If you were to split the main stem, would you expect to see dark streaks inside?"], "attribute_templates": ["What is the pattern of yellowing on the leaf?", "Which part of the plant shows the first signs of disease?", "Describe the appearance of the diseased leaf tissue.", "Is the wilting symmetrical across the entire plant?", "What color is the tissue inside a diseased stem?"], "diagnosis_templates": ["Given the interveinal chlorosis, lower-leaf defoliation, and stunting, what is the likely disease?", "The plant shows one-sided wilting and 'tiger-stripe' necrosis on its leaves. What condition is this?", "A cotton plant is wilting in cool weather, and a cut stem reveals dark brown vascular streaking. What is the diagnosis?"], "counterfactual_templates": ["If the leaf spots were angular and water-soaked, what disease might it be instead?", "If the plant was wilting but the internal stem tissue was clean and white, could this be Verticillium wilt?", "If the leaf discoloration was primarily red instead of yellow and brown, what else could be the cause?"], "severity_templates": ["How would you describe the severity of wilt if the plant is severely stunted and most leaves have fallen off?", "Based on the number of affected leaves, is this a mild or moderate infection?", "Is the plant wilting only during the day or is it permanently wilted?"], "confounders": ["fusarium_wilt", "bacterial_blight", "leaf_reddening"]}, "data_requirements": {"min_resolution_px": 480, "min_roi_fraction": 0.3, "lighting_notes": "Diffuse, even lighting is preferred. Avoid harsh midday sun that creates strong shadows and can wash out colors, making chlorosis difficult to assess.", "occlusion_notes": "Ensure symptomatic lower and mid-canopy leaves are visible and not heavily occluded by healthy upper growth. For whole-plant images, a clear profile view is needed to assess stunting and wilting."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["University extension guides for cotton pathology", "APS Compendium of Cotton Diseases, Second Edition", "Peer-reviewed plant pathology literature"]}}
+{"schema_version": "1.0.0", "disease_id": "eggplant.unknown.pest_damage", "aliases": ["insect damage", "mite damage", "chewing damage", "sucking damage", "arthropod injury"], "crop": {"common_name": "eggplant", "scientific_name": "Solanum melongena", "family": "Solanaceae"}, "condition": {"common_name": "Pest Damage", "scientific_name": null, "alt_names": ["Insect feeding", "Arthropod feeding injury"], "pathogen": {"type": "animal", "taxonomy": {"kingdom": "Animalia", "phylum": "Arthropoda", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "unknown", "transmission": {"vectors": [], "dispersal": ["Flight (for winged insects)", "Crawling", "Wind (for small insects and mites)", "Transport on infested plant material or equipment"], "overwintering": ["In soil as eggs, larvae, or pupae", "In crop debris and leaf litter", "On nearby weed or alternative host plants"]}, "environmental_risk": {"risk_factors": ["Warm, dry conditions (favors spider mites, thrips)", "High humidity (favors some caterpillars and slugs)", "Presence of alternate weed hosts", "Monoculture planting", "Lack of natural enemies"], "temp_c_day": [20, 32], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "< 10% of total leaf area on the plant is affected by feeding.", "moderate": "10-30% of total leaf area is affected; minor damage to fruit may be present.", "severe": "> 30% of total leaf area is affected, with significant defoliation and/or widespread damage to fruit.", "notes": "Severity is measured as the percentage of photosynthetic area damaged or removed. For fruit damage, a qualitative assessment (e.g., number of damaged fruits) may be more appropriate."}, "symptoms": {"leaves": ["Irregularly shaped holes or chewed-out sections from chewing insects.", "Skeletonization, where only leaf veins remain after feeding.", "Stippling (collections of tiny yellow or white spots) from sucking insects like mites or leafhoppers.", "Silvery or whitish tunnels (trails) under the leaf surface from leafminers.", "Presence of fine, silk-like webbing, especially on leaf undersides (spider mites).", "Leaf curling, distortion, or cupping, often associated with aphids."], "stems": ["Boring holes or girdling, sometimes with frass (insect excrement) visible."], "fruit": ["Superficial scarring, bronzing, or russeting on the skin.", "Sunken, discolored, or corky spots resulting from feeding punctures.", "Holes bored directly into the fruit, which may lead to secondary rot."], "roots": [], "whole_plant": ["Stunted growth or wilting in cases of severe infestation or stem damage."], "signs_microscopic_or_visible": ["Presence of adult insects, larvae (caterpillars), or eggs on plant surfaces.", "Sticky 'honeydew' exudate, which may be colonized by black sooty mold.", "Frass (insect droppings) on leaves or near stems."]}, "lookalikes": [{"condition_name": "Leaf Spot", "condition_id": "eggplant.disease.leaf_spot", "key_differences": ["Leaf spots are typically circular with distinct, often darker, borders, whereas chewing damage consists of irregular holes with missing tissue.", "Fungal leaf spots cause tissue necrosis and discoloration, but the tissue remains intact initially, unlike chewing damage.", "Leaf spots may have visible fungal fruiting bodies (e.g., tiny black dots) in the lesion center, which are absent in pest damage."]}, {"condition_name": "Phomopsis Blight", "condition_id": "eggplant.disease.phomopsis_blight", "key_differences": ["Phomopsis lesions on leaves are circular, tan-to-brown with a light center, unlike the irregular holes or stippling from pests.", "On fruit, Phomopsis causes large, sunken, circular lesions with concentric rings, distinct from small feeding punctures or bored holes.", "Stem cankers from Phomopsis are a form of tissue decay, whereas insect boring holes are excavations that may contain frass."]}, {"condition_name": "Mosaic Virus", "condition_id": "eggplant.disease.mosaic_virus", "key_differences": ["Mosaic virus causes patterns of light green and yellow mottling on leaves, not the removal of tissue (holes) or stippling seen with pests.", "Virus symptoms are systemic and often follow leaf veins, while pest damage is localized to feeding sites.", "Leaf distortion from viruses is often accompanied by mottling, whereas pest-induced curling might have visible signs like aphids or webbing."]}], "management": {"cultural": ["Use of physical barriers like floating row covers on young plants.", "Regular scouting and monitoring to detect pest populations early.", "Removal and destruction of heavily infested plant parts.", "Management of nearby weeds that can act as alternate hosts for pests.", "Crop rotation to break pest life cycles."], "biological": ["Encourage populations of natural enemies (predators and parasitoids) like ladybugs, lacewings, and parasitic wasps.", "Application of microbial insecticides such as Bacillus thuringiensis (Bt) for caterpillars or entomopathogenic fungi for other insects."], "chemical": ["Application of contact insecticides like insecticidal soaps or horticultural oils for soft-bodied insects.", "Use of selective or broad-spectrum insecticides based on proper pest identification and economic thresholds.", "Avoid overuse of broad-spectrum insecticides to protect beneficial insects."], "notes": "Accurate identification of the specific pest is crucial before applying chemical controls to ensure efficacy and minimize harm to non-target organisms."}, "qa_seeds": {"verification_templates": ["Is there evidence of chewing on the leaves?", "Are there holes in this eggplant fruit?", "Can you see any fine webbing on the underside of the leaves?", "Does this leaf appear to be skeletonized?", "Are there any visible insects, caterpillars, or eggs on the plant?", "Does the leaf surface have tiny yellow or white speckles?"], "attribute_templates": ["What kind of damage is visible on the leaf?", "Describe the marks on the fruit's skin.", "Are the holes in the leaf ragged or clean-cut?", "Is there any sticky residue or black mold on the leaves?", "What is the shape of the damage on the leaf?", "Is the leaf tissue missing or just discolored?"], "diagnosis_templates": ["What is causing the holes in these eggplant leaves?", "Why are the leaves covered in tiny yellow dots?", "Is this plant being damaged by a pest?", "What problem is causing the leaves to be curled and distorted?"], "counterfactual_templates": ["If the spots were circular with dark borders and no missing tissue, what might it be?", "What would this look like if it were a fungal disease instead of pest damage?", "If there were no visible insects or webbing, could it still be pest damage?"], "severity_templates": ["How severe is the pest damage on this plant?", "What percentage of the leaf area has been eaten?", "Would you classify this damage as mild, moderate, or severe?"], "confounders": ["leaf_spot", "phomopsis_blight", "mechanical_damage"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Diffuse, even lighting is preferred. Avoid harsh shadows that can obscure small pests, webbing, stippling, or leafminer trails.", "occlusion_notes": "The damaged area should be clearly visible and not significantly obscured by other leaves. For symptoms like stippling or webbing, a close-up, in-focus view is essential."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2024-05-21T10:00:00Z", "updated_at": "2024-05-21T10:00:00Z", "sources": ["University extension guides on eggplant pest management", "APS Compendium of Solanaceous Crop Diseases", "General entomology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "eggplant.healthy.healthy", "aliases": ["normal", "asymptomatic", "no disease"], "crop": {"common_name": "eggplant", "scientific_name": "Solanum melongena", "family": "Solanaceae"}, "condition": {"common_name": "Healthy", "scientific_name": "", "alt_names": ["Asymptomatic"], "pathogen": {"type": "none", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "healthy", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Optimal growing temperatures and humidity", "Adequate sunlight (6-8 hours direct sun)", "Well-drained, fertile soil", "Good air circulation around plants"], "temp_c_day": [21, 29], "temp_c_night": [18, 24], "relative_humidity_pct": [60, 85], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Not applicable.", "moderate": "Not applicable.", "severe": "Not applicable.", "notes": "Severity is not applicable for a healthy plant. The plant is either healthy or it is not. Any deviation from the healthy description indicates a different condition."}, "symptoms": {"leaves": ["Uniformly green color, appropriate for the cultivar, without mottling or yellowing.", "Leaves are fully expanded, turgid, and show no signs of wilting, curling, or distortion.", "Leaf surfaces are smooth and free of spots, lesions, holes, or powdery/fuzzy growth.", "No stippling, bronzing, or webbing is visible on either the upper or lower leaf surface."], "stems": ["Stems are sturdy, upright, and have a consistent green or purplish color.", "No cankers, lesions, dark streaks, or soft/rotted areas are present.", "The base of the stem is firm and free from decay."], "fruit": ["Skin is smooth, glossy, and has a uniform, rich color characteristic of the variety.", "Fruit is firm to the touch, not soft, shriveled, or water-soaked.", "The calyx (green cap) is fresh, green, and healthy-looking, not brown or moldy.", "Fruit surface is free from spots, sunken lesions, cracks, or rot."], "roots": [], "whole_plant": ["Exhibits vigorous, upright growth.", "Actively producing new leaves, flowers, and fruit appropriate for its age and season."], "signs_microscopic_or_visible": ["Absence of any visible pathogen signs such as mycelium, fruiting bodies, spores, or bacterial ooze."]}, "lookalikes": [{"condition_name": "pest_damage", "condition_id": "eggplant.pest_damage.unknown", "key_differences": ["Healthy leaves are whole and intact, whereas pest damage often appears as holes, chewed margins, or skeletonization.", "Healthy leaf surfaces are clean, while pest damage may include stippling (tiny dots from mites), leafminer trails, or visible insects/larvae.", "Healthy plants lack sticky honeydew or sooty mold, which can be present with aphid or whitefly infestations."]}, {"condition_name": "leaf_spot", "condition_id": "eggplant.fungal_disorder.leaf_spot", "key_differences": ["Healthy leaves have a uniform green color, while leaf spot diseases cause distinct, often circular or angular, necrotic (brown/black) or chlorotic (yellow) spots.", "Spots on diseased leaves may have a defined border or a yellow halo, both of which are absent on healthy leaves.", "Under moist conditions, fungal leaf spots may develop visible signs like tiny black dots (pycnidia) within the lesion, which are never present on healthy tissue."]}, {"condition_name": "wilt_generic_review", "condition_id": "eggplant.wilt.wilt_generic_review", "key_differences": ["Healthy leaves are turgid and held upright, while a wilted plant shows drooping or flagging of leaves, which may or may not recover overnight.", "The entire healthy plant appears vigorous, whereas wilt often affects one side of the plant or the whole plant, leading to stunting and death.", "Healthy stems are firm; stems of plants with vascular wilt often show brown discoloration in the vascular tissue when cut open."]}], "management": {"cultural": ["Plant certified disease-free seeds or transplants.", "Ensure proper spacing between plants to promote good air circulation.", "Use drip irrigation or soaker hoses to keep foliage dry.", "Practice a 3-4 year crop rotation with non-solanaceous crops.", "Maintain balanced soil fertility based on soil tests."], "biological": ["Incorporate compost to improve soil structure and microbial activity, which can suppress some pathogens.", "Encourage beneficial insects that prey on potential pest vectors."], "chemical": ["Not applicable for a healthy plant. Chemical controls are used preventatively or curatively for specific diseases."], "notes": "Maintaining plant health focuses on preventative cultural practices that reduce stress and create an unfavorable environment for pathogens."}, "qa_seeds": {"verification_templates": ["Is this eggplant plant healthy?", "Does this plant show any signs of disease or pest damage?", "Are the leaves on this plant uniformly green and free of spots?", "Can you confirm this is an asymptomatic eggplant?", "Is the plant in the image exhibiting normal, vigorous growth?", "Are there any visible symptoms on the fruit?"], "attribute_templates": ["What color are the leaves?", "Describe the posture of the plant.", "Are there any markings on the stem?", "Are the leaves turgid or drooping?", "Describe the skin of the eggplant fruit.", "Is there any discoloration on the calyx (cap) of the fruit?"], "diagnosis_templates": ["What is the health status of this eggplant plant?", "Is there anything wrong with this plant?", "Diagnose the condition of the eggplant in the image."], "counterfactual_templates": ["If the leaves had yellow spots with brown centers, would it still be healthy?", "What would I see on the leaves if this plant had mosaic virus instead of being healthy?", "If the entire plant was drooping, what condition might it be?"], "severity_templates": ["What is the severity of symptoms on this plant?", "How would you rate the health of this plant on a scale from healthy to severe?", "Are there any symptoms to assess for severity?"], "confounders": ["pest_damage", "leaf_spot", "wilt_generic_review"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.4, "lighting_notes": "Even, diffuse lighting is optimal. Avoid hard shadows, direct glare, or underexposure that can hide symptoms or alter the appearance of leaf color.", "occlusion_notes": "The plant of interest, particularly its leaves and stem, should be the primary focus and not be significantly obscured by other plants, weeds, or man-made objects."}, "provenance": {"created_by": "Expert Plant Pathologist", "reviewed_by": "VQA Dataset Designer", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["General university extension guides for eggplant production", "APS Compendium of Solanaceous Crop Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "eggplant.disease_fungal.leaf_spot", "aliases": ["Cercospora leaf spot", "Alternaria leaf spot", "frog-eye leaf spot", "Septoria leaf spot"], "crop": {"common_name": "eggplant", "scientific_name": "Solanum melongena", "family": "Solanaceae"}, "condition": {"common_name": "leaf spot", "scientific_name": "Cercospora melongenae, Alternaria spp., Septoria spp.", "alt_names": ["frog-eye spot"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Capnodiales", "family": "Mycosphaerellaceae", "genus": "Cercospora", "species": "melongenae"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["wind", "rain splash", "contaminated tools", "infected seeds"], "overwintering": ["infected crop debris", "soil", "infected seeds", "solanaceous weeds"]}, "environmental_risk": {"risk_factors": ["high humidity", "prolonged leaf wetness", "warm temperatures", "poor air circulation", "overhead irrigation"], "temp_c_day": [24, 32], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 10}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of total leaf area affected. A few scattered lesions, primarily on lower leaves.", "moderate": "11-40% of leaf area affected. Lesions are numerous, may be coalescing on lower and mid-canopy leaves. Some minor defoliation may be present.", "severe": ">40% of leaf area affected. Widespread lesions, significant coalescing, extensive chlorosis and necrosis. Severe defoliation is evident.", "notes": "Severity is assessed as the percentage of the total foliar surface area of the plant showing symptoms (lesions, chlorosis, necrosis). Focus on leaves as the primary indicator."}, "symptoms": {"leaves": ["Initial spots are small, circular, and water-soaked, often appearing on lower, older leaves first.", "Lesions expand to become circular or irregular, typically 2-10 mm in diameter.", "Mature spots develop a tan, gray, or white center with a distinct dark brown or black border, creating a 'frog-eye' appearance.", "A yellow halo may surround the lesion.", "In severe cases, spots merge (coalesce), leading to large, irregular necrotic blotches.", "Affected leaves turn yellow (chlorosis), wither, and drop prematurely, leading to defoliation.", "Tiny black specks (pycnidia or acervuli) may be visible in the center of older lesions, sometimes requiring a hand lens."], "stems": ["Stem lesions are less common, but can appear as elongated, sunken, dark spots."], "fruit": ["Fruit spots are rare but may appear as small, sunken, circular lesions, sometimes with a dark border."], "roots": [], "whole_plant": ["Reduced plant vigor and stunted growth due to progressive defoliation.", "Increased risk of sunscald on fruit due to the loss of protective leaf cover."], "signs_microscopic_or_visible": ["Under high humidity, a sparse, fuzzy, or velvety fungal growth may be visible in the center of lesions."]}, "lookalikes": [{"condition_name": "phomopsis_blight", "condition_id": "eggplant.disease_fungal.phomopsis_blight", "key_differences": ["Phomopsis lesions are often larger, have a target-like appearance with concentric rings, and are a lighter brown color.", "Phomopsis blight is well known for causing a severe fruit rot, which is not a primary symptom of most leaf spot fungi.", "Phomopsis typically causes distinct stem cankers, especially near the soil line, a symptom absent in leaf spot diseases.", "The black specks (pycnidia) in Phomopsis lesions are usually more numerous and prominent than in Cercospora or Alternaria spots."]}, {"condition_name": "pest_damage", "condition_id": "eggplant.pest.generic", "key_differences": ["Flea beetle damage appears as numerous small, round 'shot-holes' where leaf tissue is completely removed, unlike a fungal lesion which is necrotic tissue.", "Spider mite damage (stippling) consists of thousands of tiny, pale yellow or white dots, lacking the defined necrotic center and dark border of a fungal spot.", "Pest damage lacks any fungal signs like pycnidia or mycelial growth."]}], "management": {"cultural": ["Use certified disease-free seed and transplants.", "Practice a 2-3 year crop rotation with non-solanaceous crops.", "Ensure proper plant spacing to promote air circulation and reduce leaf wetness duration.", "Avoid overhead irrigation; use drip or furrow irrigation to keep foliage dry.", "Remove and destroy infected plant debris at the end of the season.", "Maintain a weed-free field, as some weeds can host the pathogens."], "biological": ["Application of bio-fungicides containing strains of *Bacillus subtilis* or *Trichoderma* species can provide some suppression when applied preventatively."], "chemical": ["Apply preventative fungicides before disease onset, especially when warm, humid weather is forecast.", "Effective fungicides include those with active ingredients like chlorothalonil, mancozeb, or copper compounds.", "Rotate fungicides with different modes of action (FRAC groups) to prevent the development of resistance."], "notes": "An integrated pest management (IPM) approach combining cultural practices with judicious fungicide use is the most effective strategy for managing leaf spot."}, "qa_seeds": {"verification_templates": ["Does this eggplant leaf have circular spots with tan centers and dark borders?", "Is there a 'frog-eye' pattern visible on these leaves?", "Are the spots on this leaf surrounded by a yellow halo?", "Can you see multiple small, defined lesions concentrated on the older, lower leaves?", "Are the leaves turning yellow and dropping prematurely in areas with heavy spotting?", "Do the centers of the lesions contain tiny black specks?"], "attribute_templates": ["What color is the center of the spots on the leaf?", "What is the shape of the lesions on this eggplant leaf?", "Describe the border of the leaf spots.", "Are the spots concentrated on the upper or lower part of the plant?", "Are the individual lesions merging to form larger dead patches?", "Is there a halo around the spots, and if so, what color is it?"], "diagnosis_templates": ["Based on the 'frog-eye' spots with tan centers and dark borders, what disease is affecting this eggplant?", "The plant shows defoliation starting from the bottom, with numerous circular, haloed lesions on the remaining leaves. What is the likely fungal disease?", "Given the warm, humid conditions and these specific leaf symptoms, what is the diagnosis?"], "counterfactual_templates": ["If these spots were larger, had concentric rings, and were also causing a severe fruit rot, what other disease would be more likely?", "What would you expect to see if this damage were caused by flea beetles instead of a fungus?"], "severity_templates": ["What is the approximate percentage of leaf area covered by spots on this plant?", "Based on the number of spots and amount of leaf drop, would you classify this leaf spot infection as mild, moderate, or severe?", "Is the defoliation caused by the leaf spots minor or extensive?"], "confounders": ["phomopsis_blight", "pest_damage"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Use diffuse, even lighting. Avoid harsh shadows or direct sunlight, which can obscure lesion details like color, texture, and halos.", "occlusion_notes": "Ensure the primary symptomatic leaves are clearly visible and not heavily occluded by other leaves or branches. An image showing several representative lesions in focus is ideal."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["University Extension Plant Disease Management Guides", "APS Compendium of Solanaceous Crop Diseases", "General Plant Pathology Textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "eggplant.disease_viral.mosaic_virus", "aliases": ["Eggplant mosaic virus (EMV)", "Cucumber mosaic virus on eggplant (CMV)", "Tobacco mosaic virus on eggplant (TMV)", "Alfalfa mosaic virus on eggplant (AMV)"], "crop": {"common_name": "eggplant", "scientific_name": "Solanum melongena", "family": "Solanaceae"}, "condition": {"common_name": "Mosaic Virus", "scientific_name": null, "alt_names": ["EMV", "CMV", "TMV", "AMV"], "pathogen": {"type": "Virus", "taxonomy": {"kingdom": "Orthornavirae", "phylum": "Kitrinoviricota", "class": "Alsuviricetes", "order": "Martellivirales", "family": "Bromoviridae", "genus": "Cucumovirus", "species": "Cucumber mosaic virus"}}}, "issue_type": "disease_viral", "transmission": {"vectors": ["Aphids", "Thrips", "Leafhoppers"], "dispersal": ["Insect vectors", "Mechanical transmission via contaminated tools or hands", "Infected seed", "Pollen"], "overwintering": ["Perennial host weeds", "Infected crop debris", "Infected seed", "Overwintering insect vectors"]}, "environmental_risk": {"risk_factors": ["High populations of aphid vectors", "Proximity to infected host weeds (e.g., nightshades, legumes)", "Use of non-certified seed or infected transplants", "Mechanical operations in the field when plants are wet"], "temp_c_day": [20, 30], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area on affected leaves shows mottling or discoloration. Plant stunting is minimal or absent.", "moderate": "11-40% of leaf area shows distinct mosaic, yellowing, or blistering. Some leaf distortion and moderate stunting are visible.", "severe": ">40% of total plant foliage is affected, with severe mosaic, leaf malformation (e.g., 'fernleaf'), and significant plant stunting. Fruit may be small, discolored, or deformed.", "notes": "Severity is assessed based on the percentage of symptomatic leaf area across the entire plant and the degree of stunting or fruit malformation. Early infections are typically more severe."}, "symptoms": {"leaves": ["Light green to yellow mottling or mosaic pattern on the leaf blade.", "Alternating patches of normal green and light green/yellow tissue.", "Vein clearing, where veins appear translucent or yellow.", "Blistering or puckering (rugosity) of the leaf surface.", "Leaf distortion, such as curling, twisting, or a narrow 'fernleaf' appearance.", "Reduced overall leaf size."], "stems": ["Shortened internodes, leading to a crowded or bushy appearance."], "fruit": ["Reduced fruit size and number.", "Blotchy, uneven ripening or discoloration.", "Deformed or bumpy fruit surface.", "Concentric ringspots or necrotic spots may appear on the fruit skin."], "roots": [], "whole_plant": ["General stunting or dwarfing of the plant.", "Reduced plant vigor and overall yield."], "signs_microscopic_or_visible": ["No visible signs of the pathogen to the naked eye. Diagnosis requires lab testing (e.g., ELISA, PCR)."]}, "lookalikes": [], "management": {"cultural": ["Use certified virus-free seed and transplants.", "Control aphid vectors early in the season.", "Remove and destroy infected plants and nearby host weeds immediately upon detection.", "Practice good field sanitation by cleaning tools, equipment, and hands.", "Use reflective mulches to deter aphids."], "biological": ["Promote natural enemies of aphids, such as lady beetles, lacewings, and parasitic wasps."], "chemical": ["Apply appropriate insecticides to manage vector populations, which helps prevent spread but does not cure infected plants.", "No effective chemical treatments (virucides) exist to cure infected plants."], "notes": "Management is entirely preventative. Once a plant is infected, it cannot be cured and acts as a source of inoculum for other plants."}, "qa_seeds": {"verification_templates": ["Does this eggplant leaf show a mosaic or mottled pattern?", "Is there evidence of alternating light green and dark green patches on the leaves?", "Are the leaves of this plant puckered or blistered?", "Can you confirm the presence of leaf distortion on this plant?", "Is the fruit on this plant showing blotchy discoloration?"], "attribute_templates": ["What pattern is visible on the leaf surface?", "Describe the coloration of the affected leaf.", "What is the overall shape of the youngest leaves?", "Is the plant's growth stunted compared to a healthy one?", "Are there any ringspots or bumps on the eggplant fruit?", "How would you describe the texture of the leaf lamina?"], "diagnosis_templates": ["Given the mottled leaves and stunted growth, what disease is affecting this eggplant?", "What type of disease causes mosaic patterns, leaf puckering, and deformed fruit in eggplant?", "Is this plant infected with a mosaic virus or is it healthy?"], "counterfactual_templates": ["If the leaf symptoms were discrete brown spots with yellow halos, would it still be mosaic virus?", "If you found fine webbing and tiny moving dots on the underside of the leaves, what would be a more likely diagnosis?"], "severity_templates": ["What percentage of this leaf's area is covered in a mosaic pattern?", "Based on the stunting and leaf symptoms, how severe is the mosaic virus infection?", "Is the leaf distortion on this plant mild or severe?"], "confounders": ["pest_damage", "leaf_spot"]}, "data_requirements": {"min_resolution_px": 480, "min_roi_fraction": 0.4, "lighting_notes": "Use even, diffuse lighting. Avoid harsh shadows or overexposure, which can obscure the subtle yellow-green color variations of the mosaic pattern.", "occlusion_notes": "The characteristic pattern on the leaf blade is the primary diagnostic feature and must be clearly visible. Avoid images where symptomatic leaves are heavily occluded."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["University Extension Plant Disease Guides", "APS Compendium of Solanaceous Crop Diseases", "General Plant Virology Textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "eggplant.disease_fungal.phomopsis_blight", "aliases": ["Phomopsis fruit rot", "tip-over", "eggplant blight"], "crop": {"common_name": "eggplant", "scientific_name": "Solanum melongena", "family": "Solanaceae"}, "condition": {"common_name": "phomopsis blight", "scientific_name": "Phomopsis vexans", "alt_names": ["Diaporthe vexans"], "pathogen": {"type": "Fungus", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Sordariomycetes", "order": "Diaporthales", "family": "Diaporthaceae", "genus": "Phomopsis", "species": "vexans"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": ["wind-driven rain", "splashing water", "insects (as mechanical carriers)"], "dispersal": ["infected seed", "infected plant debris", "rain splash", "wind"], "overwintering": ["in infected plant debris in soil", "on or in seed"]}, "environmental_risk": {"risk_factors": ["High humidity", "Frequent rainfall or overhead irrigation", "Warm temperatures", "Poor air circulation", "Presence of infected crop residue"], "temp_c_day": [27, 32], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 12}, "severity_rubric": {"unit": "qualitative", "mild": "Few, small lesions (<1 cm) on <10% of leaves; no stem or fruit lesions.", "moderate": "Multiple lesions on 10-40% of leaves; one or more small stem cankers or a single small fruit lesion present.", "severe": "Lesions on >40% of leaves; stem cankers are large and girdling, causing wilt; multiple or large, decaying fruit lesions are present.", "notes": "Severity is assessed based on the combined visual impact on leaves, stems, and fruit, as stem and fruit infections are more damaging than leaf spots alone. This is a qualitative assessment combining multiple factors."}, "symptoms": {"leaves": ["Circular to irregular spots, initially gray-brown or tan.", "Spots enlarge, developing a light gray or tan center with a dark brown border.", "Tiny, black, pimple-like structures (pycnidia) often form in the center of older spots.", "Infected leaves may turn yellow and drop prematurely.", "Lesions can start at the leaf margin or in the center."], "stems": ["Dark, sunken, oval-shaped cankers form, often near the soil line on seedlings (damping-off).", "On mature plants, cankers are gray to brown and can girdle the stem, causing wilting and death of parts above.", "Pycnidia may be visible within stem cankers."], "fruit": ["Pale, sunken, circular spots appear on the fruit surface.", "Lesions enlarge rapidly, turning brown to black and covering a large area.", "The infected fruit tissue becomes soft and watery, then mummifies.", "Concentric rings of black pycnidia are a characteristic sign on fruit lesions."], "roots": [], "whole_plant": ["Seedlings may collapse at the soil line ('damping-off').", "Mature plants may show wilting or dieback of branches due to stem girdling.", "Overall stunting and reduced plant vigor."], "signs_microscopic_or_visible": ["Presence of numerous tiny black dots (pycnidia) embedded in the center of leaf, stem, and fruit lesions."]}, "lookalikes": [{"condition_name": "white mold", "condition_id": "eggplant.disease_fungal.white_mold", "key_differences": ["White mold produces fluffy, white, cottony mycelial growth, which is absent in Phomopsis blight.", "White mold forms hard, black, irregular-shaped bodies (sclerotia), not tiny, embedded pycnidia.", "Lesions from white mold are often watery and tan, not the distinct gray-centered spots of Phomopsis."]}, {"condition_name": "leaf spot", "condition_id": "eggplant.disease_fungal.leaf_spot", "key_differences": ["Other leaf spots (e.g., Cercospora) may have a different color profile, like a 'frog-eye' appearance without the distinct pycnidia.", "Alternaria leaf spot lesions are often darker, more target-like, and may have a velvety texture from sporulation.", "Phomopsis is distinctive when it also causes stem cankers and a characteristic soft fruit rot with pycnidia, which may not co-occur with other leaf spot diseases."]}, {"condition_name": "pest damage", "condition_id": "eggplant.pest_damage", "key_differences": ["Pest damage often involves chewing marks, holes, stippling, or trails, which are not features of Phomopsis lesions.", "Lesions from Phomopsis are caused by a pathogen and will expand over time, unlike static physical damage from an insect.", "Pest damage will not produce fungal signs like pycnidia."]}], "management": {"cultural": ["Use certified disease-free seed and transplants.", "Practice crop rotation with non-solanaceous crops for at least 3 years.", "Remove and destroy infected plant debris after harvest.", "Improve air circulation through proper plant spacing.", "Avoid overhead irrigation to minimize leaf wetness."], "biological": ["Use of bio-fungicides based on Bacillus or Trichoderma species may have some suppressive effect."], "chemical": ["Application of protective fungicides (e.g., mancozeb, chlorothalonil) before disease onset.", "Systemic fungicides may be used after infection, following local extension recommendations."], "notes": "An integrated approach combining cultural practices with timely fungicide applications is most effective for management."}, "qa_seeds": {"verification_templates": ["Is there a lesion on the eggplant fruit?", "Are there spots visible on the leaves?", "Does the stem of the plant appear discolored or constricted?", "Is the plant showing signs of wilting?", "Can you see any spots on this plant part?"], "attribute_templates": ["What color is the center of the leaf spot?", "Are there tiny black dots inside the lesions?", "Is the lesion on the fruit sunken?", "Does the leaf spot have a dark border?", "Describe the appearance of the stem canker.", "Are the spots on the fruit arranged in concentric rings?"], "diagnosis_templates": ["What is the likely cause of the large, sunken black spots on this eggplant fruit?", "Is this plant infected with Phomopsis blight?", "What disease causes gray-centered spots with pycnidia on eggplant leaves?"], "counterfactual_templates": ["If the spots on the leaves were bright yellow and angular, could it still be Phomopsis blight?", "If there was fluffy white mold growing on the stem, what disease would be more likely?", "If the spots were small, dark, and velvety instead of gray with black dots, what might be the cause?"], "severity_templates": ["How severe is the Phomopsis blight infection on this plant?", "What percentage of the fruit surface is covered by rot?", "Based on the number of leaf spots and stem cankers, would you classify this as mild or severe?"], "confounders": ["white mold", "leaf spot", "pest damage"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Even, diffuse lighting is preferred. Avoid harsh shadows or direct sunlight that can obscure lesion details like color and texture.", "occlusion_notes": "The primary symptom (e.g., fruit rot, stem canker) should be clearly visible and not significantly obscured by other leaves, branches, or debris."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University Extension Plant Pathology Guides", "APS Compendium of Solanaceous Crop Diseases", "General Plant Pathology Textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "eggplant.physiological_symptom.symptom_small_leaf_review", "aliases": ["little leaf of eggplant", "eggplant rosette", "zinc deficiency in eggplant"], "crop": {"common_name": "eggplant", "scientific_name": "Solanum melongena", "family": "Solanaceae"}, "condition": {"common_name": "Small Leaf", "scientific_name": null, "alt_names": ["Little Leaf Disorder", "Rosette"], "pathogen": {"type": "abiotic_stress_or_disorder", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "physiological_symptom", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Zinc deficiency in soil", "Alkaline soil pH (>7.0)", "High soil phosphorus levels, which can inhibit zinc uptake", "Low soil organic matter", "Waterlogged or compacted soil"], "temp_c_day": [], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "New leaves are slightly smaller than normal with minor shortening of internodes. Plant growth is only slightly affected.", "moderate": "Leaves are significantly reduced in size (<50% of normal). Internodes are very short, creating a distinct 'rosette' or bushy appearance. Plant is noticeably stunted.", "severe": "Extreme stunting of the entire plant. Leaves are very small, thickened, and tightly clustered. Plant may fail to flower or produce fruit.", "notes": "Severity is assessed based on the degree of leaf size reduction and internode shortening, leading to overall plant stunting. It is not based on discrete lesions."}, "symptoms": {"leaves": ["Newly formed leaves are abnormally small, narrow, and sometimes misshapen.", "Leaves may appear thickened, leathery, or brittle.", "Interveinal chlorosis (yellowing between the veins) is common on younger leaves.", "In severe cases, leaf margins may appear wavy or puckered.", "Leaves are clustered together at the top of the plant."], "stems": ["Internodes (the space between leaf nodes) are drastically shortened.", "Axillary buds may proliferate, contributing to a bushy appearance."], "fruit": ["Fruit set is often poor or non-existent.", "If fruit develops, it is typically small, stiff, and malformed."], "roots": ["Root system may be poorly developed, but this is not a primary visual symptom."], "whole_plant": ["Overall plant growth is severely stunted.", "The plant takes on a bushy, 'rosette' appearance due to shortened internodes and clustered leaves."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "Mosaic Virus", "condition_id": "eggplant.viral_symptom.mosaic_virus", "key_differences": ["Mosaic virus causes mottled light and dark green patterns (a 'mosaic') on leaves, which are absent in physiological small leaf.", "Virus-infected leaves are often blistered or distorted in shape, not just uniformly small and narrow.", "Physiological small leaf is characterized by severe internode shortening (rosetting), which is less pronounced in mosaic virus infections."]}, {"condition_name": "Pest Damage", "condition_id": "eggplant.pest_damage.pest_damage", "key_differences": ["Pest damage (e.g., from mites or aphids) often shows visible evidence like insects, webbing, stippling, or sooty mold.", "Leaf distortion from pests is often twisting or curling, whereas physiological small leaf is primarily a reduction in size.", "Symptoms of small leaf disorder are systemic, affecting all new growth, while pest damage may be more localized, especially initially."]}], "management": {"cultural": ["Conduct a soil test to confirm nutrient deficiencies, particularly zinc.", "Adjust soil pH to a range of 6.0-6.8 to improve nutrient availability.", "Incorporate well-composted organic matter into the soil.", "Avoid excessive application of phosphorus fertilizers."], "biological": [], "chemical": ["If zinc deficiency is confirmed, apply a foliar spray of zinc sulfate.", "Soil application of zinc fertilizers can be used as a pre-plant or corrective measure."], "notes": "Management should be based on a confirmed diagnosis, typically via soil or tissue analysis."}, "qa_seeds": {"verification_templates": ["Does this plant have abnormally small leaves?", "Are the leaves clustered together at the top of the plant?", "Is the plant stunted and bushy?", "Can you see a rosette-like growth pattern?", "Are the spaces between the leaves on the stem unusually short?", "Does this look like a case of small leaf disorder?"], "attribute_templates": ["Describe the size of the upper leaves.", "What is the spacing between the leaves on the stem?", "Is there any yellowing on the leaves, and if so, where?", "What is the overall shape of the plant?", "Are the leaves thick or leathery?", "Compare the size of the new leaves to the older, lower leaves.", "Is the plant stunted compared to a healthy eggplant?"], "diagnosis_templates": ["What physiological disorder causes stunting and a rosette-like appearance in eggplant?", "Given the small leaves and short internodes, what is the likely issue?", "What nutrient deficiency is most commonly associated with these symptoms?"], "counterfactual_templates": ["If this were mosaic virus, what other symptom would you expect to see on the leaves?", "What would the leaves and stems look like if this were a healthy plant?", "If this was caused by mites, what other signs would be visible on the leaves?"], "severity_templates": ["How severe is the stunting of this plant?", "Would you classify the leaf size reduction as mild, moderate, or severe?", "Based on the clustered growth, how would you rate the severity of this condition?"], "confounders": ["mosaic_virus", "pest_damage", "wilt_generic_review"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.4, "lighting_notes": "Good, even lighting. Avoid harsh shadows that obscure leaf shape and color.", "occlusion_notes": "The top growing point of the plant should be clearly visible to assess internode length and leaf clustering. Avoid heavy occlusion from other plants."}, "provenance": {"created_by": "VQA_Dataset_Designer", "reviewed_by": "Expert_Plant_Pathologist", "created_at": "2024-05-21T10:00:00Z", "updated_at": "2024-05-21T10:00:00Z", "sources": ["General university extension guides for vegetable crops", "Compendia of Solanaceous crop diseases", "Plant nutrition and soil fertility manuals"]}}
+{"schema_version": "1.0.0", "disease_id": "eggplant.unknown.white_mold", "aliases": ["Sclerotinia stem rot", "Sclerotinia rot", "Timber rot"], "crop": {"common_name": "eggplant", "scientific_name": "Solanum melongena", "family": "Solanaceae"}, "condition": {"common_name": "white mold", "scientific_name": "Sclerotinia sclerotiorum", "alt_names": ["Sclerotinia stem rot"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Leotiomycetes", "order": "Helotiales", "family": "Sclerotiniaceae", "genus": "Sclerotinia", "species": "sclerotiorum"}}}, "issue_type": "unknown", "transmission": {"vectors": [], "dispersal": ["windborne ascospores", "contaminated soil", "infected plant debris", "farm equipment"], "overwintering": ["sclerotia in soil", "infected plant debris"]}, "environmental_risk": {"risk_factors": ["cool, moist conditions", "dense plant canopy", "poor air circulation", "prolonged leaf wetness", "flowering and senescence stages"], "temp_c_day": [15, 21], "temp_c_night": [], "relative_humidity_pct": [90, 100], "leaf_wetness_hours_threshold": 16}, "severity_rubric": {"unit": "qualitative", "mild": "One or two small, water-soaked lesions on stems or leaves, with minimal wilting of a single branch.", "moderate": "Expanding lesions with visible white mycelium on stems, initial wilting of multiple branches, some sclerotia may be visible.", "severe": "Extensive mycelial growth girdling the main stem, significant wilting and collapse of the entire plant, abundant black sclerotia present on and inside stems.", "notes": "Severity is based on the extent of stem girdling and plant collapse, as this is the primary cause of yield loss. Percent leaf area is not a useful metric for this disease."}, "symptoms": {"leaves": ["Water-soaked lesions appear, often where a leaf petiole joins the stem.", "Leaves on infected branches turn yellow, wilt, and die.", "Infected leaves may become covered in white, cottony mycelium if conditions are humid."], "stems": ["Soft, watery lesions develop, typically at nodes, in branch axils, or near the soil line.", "Lesions become covered in a dense, white, cottony fungal growth (mycelium).", "The stem becomes bleached, tan, or light gray in color under the fungal growth.", "Hard, black, irregular-shaped bodies (sclerotia) form on the surface and inside the hollowed-out stem."], "fruit": ["Fruit develops a watery soft rot, often starting where it contacts an infected stem or the ground.", "The rotting fruit becomes covered in white mycelium.", "Black sclerotia may form on or inside the decaying fruit."], "roots": [], "whole_plant": ["Sudden wilting of one or more branches is a key early symptom.", "The entire plant may collapse and die quickly once the main stem is girdled."], "signs_microscopic_or_visible": ["Visible white, cottony mycelium on affected plant parts.", "Visible hard, black sclerotia, resembling rodent droppings, on or inside stems and fruit."]}, "lookalikes": [{"condition_name": "Phomopsis blight", "condition_id": "eggplant.fungal.phomopsis_blight", "key_differences": ["Phomopsis causes tan to brown, sunken cankers on the stem, often with tiny black dots (pycnidia), whereas white mold causes bleached stems with white, cottony growth.", "White mold produces large, irregular black sclerotia; Phomopsis produces tiny black pycnidia, often in concentric rings.", "White mold is most active in cool, wet weather, while Phomopsis blight is favored by warm, wet weather."]}], "management": {"cultural": ["Rotate crops with non-hosts (e.g., grains) for at least 3 years.", "Ensure good soil drainage and avoid over-irrigation.", "Increase plant spacing to improve air circulation and reduce canopy humidity.", "Remove and destroy infected plants immediately to reduce sclerotia buildup in the soil."], "biological": ["Application of biocontrol agents like *Coniothyrium minitans* to the soil can parasitize and reduce sclerotia populations."], "chemical": ["Preventative fungicide applications targeted at the base of the plant and during flowering may be effective in high-risk areas."], "notes": "Management focuses on reducing soil inoculum (sclerotia) and managing canopy moisture. Once a plant is infected and wilting, it cannot be saved and should be removed."}, "qa_seeds": {"verification_templates": ["Is there a white, cottony growth on the stem of the eggplant?", "Are there any hard, black, irregularly shaped bodies that look like rodent droppings on or inside the stem?", "Does the plant show signs of wilting along with a soft, watery lesion near the soil line?", "Is the stem tissue bleached or light tan in color under the white fungal growth?", "Does this image show an eggplant with a stem rot covered in white fungus?"], "attribute_templates": ["What color is the fungal growth on the stem?", "What part of the plant is showing the most severe symptoms?", "Are there sclerotia visible?", "Describe the texture of the lesion on the stem.", "Is the plant wilting?", "Where on the plant is the white, cottony mass located?"], "diagnosis_templates": ["Based on the white cottony mycelium and wilting, what is wrong with this eggplant?", "What disease causes bleached stems, white fungus, and black sclerotia on eggplant?", "My eggplant is wilting and has a soft rot at the base covered in white mold. What is the diagnosis?"], "counterfactual_templates": ["If the stem had sunken brown cankers with tiny black dots instead of white mold, what would the disease be?", "If the plant was wilting but had no visible fungal growth on the outside of the stem and the inner vascular tissue was brown, what type of disease might it be?"], "severity_templates": ["How severe is the white mold infection on this plant: mild, moderate, or severe?", "Based on the extent of stem girdling and plant collapse, what is the severity of this infection?", "Is the entire plant collapsing, or is it just a single branch wilting?"], "confounders": ["phomopsis_blight", "wilt_generic_review"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Avoid harsh shadows that could obscure the white mycelium or sclerotia. Diffuse, even lighting is best.", "occlusion_notes": "The base of the stem and branch junctions are key diagnostic areas and should not be obscured by leaves, mulch, or other plants."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27", "updated_at": "2023-10-27", "sources": ["University extension guides on vegetable diseases", "APS Compendium of Solanaceous Crop Diseases", "General plant pathology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "eggplant.disease_fungal.wilt_generic_review", "aliases": ["Vascular wilt", "Verticillium wilt", "Fusarium wilt"], "crop": {"common_name": "eggplant", "scientific_name": "Solanum melongena", "family": "Solanaceae"}, "condition": {"common_name": "Fungal Wilt", "scientific_name": "Verticillium dahliae, Fusarium oxysporum f. sp. melongenae", "alt_names": ["Vascular wilt syndrome"], "pathogen": {"type": "fungus", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "", "order": "", "family": "", "genus": "Verticillium, Fusarium", "species": ""}}}, "issue_type": "disease_fungal", "transmission": {"vectors": ["Contaminated farm equipment", "Infected transplants", "Root-knot nematodes (as wounding agents)"], "dispersal": ["Soilborne pathogen movement", "Infected plant debris", "Contaminated irrigation water"], "overwintering": ["In soil as microsclerotia (Verticillium) or chlamydospores (Fusarium)", "In infected crop residue", "On roots of perennial weeds"]}, "environmental_risk": {"risk_factors": ["Moderate to warm soil temperatures", "High soil moisture or poor drainage", "Soil compaction", "Continuous cropping of susceptible plants (monoculture)", "Plant stress from other factors (e.g., nematode damage)"], "temp_c_day": [21, 28], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "One or two lower leaves are yellowing or wilting. Plant may show slight wilting on one side during the hottest part of the day but recovers at night.", "moderate": "A significant portion of the plant (25-50%) shows persistent wilting. Lower leaves are yellow and brown. Plant is visibly stunted compared to healthy neighbors.", "severe": "The entire plant is severely wilted, necrotic, and near death. Most leaves are brown and dry. Plant collapse is imminent or has occurred.", "notes": "Severity is based on the proportion of the plant affected by wilting and necrosis, and the degree of stunting. As this is a soilborne vascular disease, leaf wetness is not a primary driver of infection."}, "symptoms": {"leaves": ["Wilting of lower leaves, often beginning on one side of the plant or one side of a leaf.", "Yellowing (chlorosis) of leaf tissue, typically starting at the margins and progressing inward between the veins.", "V-shaped, yellow to brown lesions may form at the edge of older leaves.", "Affected leaves eventually turn brown, become brittle, and may drop.", "Upper leaves may appear pale or dull green."], "stems": ["Internal vascular tissue shows a tan to dark brown discoloration, visible as a ring or streaks when the stem is cut.", "The exterior of the stem often appears normal until the disease is advanced."], "fruit": ["Fruit may be smaller than normal, discolored, or fail to develop.", "Sunscald can occur on fruit due to defoliation and loss of canopy cover."], "roots": ["Roots may show some browning or decay in late stages, but often appear healthy early on.", "Vascular discoloration extends from the roots up into the stem."], "whole_plant": ["General stunting and reduced vigor.", "Wilting is most noticeable during periods of high temperature or water demand.", "Unilateral (one-sided) wilting of the plant is a classic diagnostic symptom.", "Eventual plant death."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "Phomopsis Blight", "condition_id": "eggplant.disease_fungal.phomopsis_blight", "key_differences": ["Phomopsis causes distinct, sunken, dark cankers on the stem, often near the soil line, which are absent in vascular wilts.", "Phomopsis also causes circular, tan leaf spots with dark borders and a soft, brown fruit rot.", "Wilting from Phomopsis is due to the girdling effect of the stem canker, not a systemic vascular infection."]}, {"condition_name": "White Mold", "condition_id": "eggplant.disease_fungal.white_mold", "key_differences": ["White mold produces visible signs: fluffy white cottony mycelium on stems, leaves, or fruit.", "Hard, black, irregular sclerotia (resembling rodent droppings) form on or inside infected plant parts.", "White mold causes a watery, soft rot and stem bleaching, not the internal vascular browning characteristic of Fusarium/Verticillium wilt."]}], "management": {"cultural": ["Use certified disease-free seed and resistant cultivars.", "Practice long crop rotations (4-5 years) with non-solanaceous crops.", "Sanitize all tools, stakes, and equipment between plantings.", "Maintain optimal soil health and avoid over-fertilization, especially with nitrogen.", "Remove and destroy infected plants and crop debris immediately."], "biological": ["Inoculation of soil with beneficial microbes like *Trichoderma* spp. may help suppress the pathogen."], "chemical": ["Pre-plant soil fumigation can reduce pathogen load but is often not practical or economical for all growers.", "Post-infection fungicide applications are generally ineffective for controlling vascular wilts."], "notes": "Management must be preventative. Once a plant is infected, it cannot be cured. The focus is on reducing soil inoculum and using resistant varieties."}, "qa_seeds": {"verification_templates": ["Is this plant wilting during the day?", "Are the lower leaves yellowing or browning?", "Does the wilting appear to be worse on one side of the plant?", "Is the plant stunted compared to others nearby?", "Can you see any signs of physical damage or pests on the stem?", "Are there any fluffy white growths on the plant?"], "attribute_templates": ["What part of the plant is showing symptoms?", "Describe the color of the affected leaves.", "Is the wilting affecting the entire plant or just one side?", "Are there any spots or lesions on the leaves or stem?", "How are the symptoms distributed on the plant (e.g., lower vs. upper leaves)?", "What is the overall appearance of the plant (e.g., stunted, vigorous, dying)?"], "diagnosis_templates": ["Given the one-sided wilting and lower leaf yellowing, what is the likely disease category?", "What soilborne fungal disease is known to cause vascular browning and wilting in eggplant?", "Is this plant likely suffering from a fungal wilt disease?"], "counterfactual_templates": ["If this were White Mold, what visible sign would you expect to see on the stem?", "If the wilting were caused by a stem borer, what evidence would you look for on the stem's surface?", "If this plant were healthy, how would its leaves and posture differ?"], "severity_templates": ["Based on the extent of wilting, would you describe this as a mild, moderate, or severe infection?", "What percentage of the plant's leaves are yellow or wilted?", "Has the wilting progressed beyond the lower leaves to the rest of the plant?"], "confounders": ["phomopsis_blight", "pest_damage", "white_mold"]}, "data_requirements": {"min_resolution_px": 768, "min_roi_fraction": 0.5, "lighting_notes": "Use diffuse, even lighting. Avoid hard midday sun which can create deep shadows and cause temporary physiological wilting, confounding diagnosis.", "occlusion_notes": "The whole plant, including the lower stem and leaves, should be clearly visible. Avoid images where symptoms are obscured by other plants or weeds."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University extension guides on vegetable diseases", "APS Compendium of Eggplant Diseases", "General plant pathology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "grape.disease_fungal.anthracnose", "aliases": ["Bird's-eye rot", "Grapevine anthracnose", "Black spot"], "crop": {"common_name": "Grape", "scientific_name": "Vitis vinifera", "family": "Vitaceae"}, "condition": {"common_name": "Anthracnose", "scientific_name": "Elsinoë ampelina", "alt_names": [], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Myriangiales", "family": "Elsinoaceae", "genus": "Elsinoë", "species": "ampelina"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["rain_splash", "wind_driven_rain", "contaminated_tools"], "overwintering": ["infected_canes_and_shoots", "mummified_berries_on_vine_or_ground"]}, "environmental_risk": {"risk_factors": ["prolonged_rainy_periods", "high_humidity", "poor_air_circulation_in_canopy", "susceptible_cultivars"], "temp_c_day": [24, 32], "temp_c_night": [], "relative_humidity_pct": [80, 100], "leaf_wetness_hours_threshold": 12}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "< 5% of leaf area affected, or < 10 lesions per shoot/cluster.", "moderate": "5-25% of leaf area affected, with some shoot distortion or berry damage.", "severe": "> 25% of leaf area affected, significant shoot girdling, major fruit loss, and defoliation.", "notes": "Severity is assessed on the most affected plant part. For leaves, percent area is used. For shoots and fruit, a qualitative assessment of lesion density and damage may be more practical."}, "symptoms": {"leaves": ["Small, circular, reddish-brown to black spots appear on young leaves.", "Lesion centers turn grayish-white and often drop out, creating a 'shot-hole' appearance.", "A distinct, dark brown or black, slightly raised border surrounds the lesion.", "Infected leaves may become distorted, curled, or ragged."], "stems": ["Affects young, green shoots, petioles, and tendrils.", "Lesions are small, circular to elliptical, and sunken.", "Initially purplish-black, the centers become grayish with a dark, raised border.", "Severe infections can girdle shoots, causing dieback of the tips."], "fruit": ["Lesions on berries are the most distinctive 'bird's-eye rot' symptom.", "Starts as a small, circular, reddish-brown spot.", "The spot enlarges, becomes sunken, and the center turns light gray or violet.", "A prominent, dark reddish-brown to black ring surrounds the light center.", "Infected berries may crack, fail to ripen, or shrivel."], "roots": [], "whole_plant": [], "signs_microscopic_or_visible": ["Under wet conditions, pinkish spore masses (acervuli) may be visible in the center of lesions, often requiring magnification."]}, "lookalikes": [{"condition_name": "Black Rot", "condition_id": "grape.disease_fungal.black_rot", "key_differences": ["Fruit lesions in Black Rot result in hard, black, shriveled 'mummies' covered in tiny black dots (pycnidia), not 'bird's-eye' spots.", "Leaf spots from Black Rot do not drop out to form 'shot-holes'; they typically contain visible black pycnidia arranged in a ring.", "Anthracnose lesions on shoots are deeply sunken or cankered, while Black Rot lesions are more superficial."]}, {"condition_name": "Pest Damage", "condition_id": "grape.pest_damage", "key_differences": ["Shot-holes from insect feeding (e.g., flea beetles) are typically just holes, lacking the characteristic gray center and dark, raised border of an anthracnose lesion.", "Pest damage does not produce the sunken, canker-like lesions on stems or 'bird's-eye' spots on fruit.", "Look for signs of insects, frass, or chewing marks around the holes."]}, {"condition_name": "Isariopsis Leaf Spot", "condition_id": "grape.disease_fungal.isariopsis_leaf_spot", "key_differences": ["Isariopsis lesions are often more angular or irregular, bounded by leaf veins, whereas anthracnose spots are distinctly circular.", "Isariopsis lesions do not typically have centers that fall out to create a 'shot-hole' effect.", "The underside of Isariopsis lesions may show a sooty or olive-green mold growth, which is absent in anthracnose."]}], "management": {"cultural": ["Plant disease-free nursery stock.", "Prune out and destroy infected canes, shoots, and fruit clusters during the dormant season.", "Promote good air circulation through proper pruning, trellising, and canopy management.", "Improve soil drainage and avoid overhead irrigation."], "biological": ["Some bio-fungicides based on Bacillus subtilis may offer partial suppression when applied preventatively."], "chemical": ["Apply dormant sprays (e.g., lime sulfur) to reduce overwintering inoculum.", "Use protective fungicides starting from early shoot growth, especially during wet periods.", "Fungicide classes like strobilurins (QoIs), DMIs, and mancozeb are often effective, but rotation is crucial to prevent resistance."], "notes": "Management is most effective when integrating cultural practices with a well-timed fungicide program based on weather forecasts and vine growth stage."}, "qa_seeds": {"verification_templates": ["Is there a hole in the center of the leaf spot?", "Does the spot on the berry look like a 'bird's-eye' with a light center and dark rim?", "Are the lesions on the green shoots sunken or pitted?", "Does the leaf spot have a distinct, dark, raised border?", "Is the leaf tissue around the spot distorted or puckered?"], "attribute_templates": ["What is the color of the center of the leaf spot?", "What is the shape of the lesions on the shoots?", "Describe the border of the spot on the grape berry.", "Are the lesions on the leaves circular or angular?", "Are there any visible signs like mold or tiny black dots within the lesions?"], "diagnosis_templates": ["Based on the 'shot-hole' leaf spots and 'bird's-eye' fruit rot, what disease is this?", "What fungal disease is causing these sunken cankers on the young grape shoots?", "Given the combination of symptoms on leaves, shoots, and fruit, what is the most likely diagnosis?"], "counterfactual_templates": ["If the fruit lesion was a shriveled black mummy instead of a bird's-eye spot, what disease would it be?", "If the leaf spots were covered in a white, powdery growth, what would be the likely disease?", "If the holes in the leaves lacked a colored, diseased border, what could be a non-disease cause?"], "severity_templates": ["What percentage of this leaf's surface is affected by anthracnose spots?", "Based on the number of lesions on the shoot, would you classify this infection as mild, moderate, or severe?", "How would you rate the severity of the 'bird's-eye rot' on this fruit cluster?"], "confounders": ["black_rot", "pest_damage", "isariopsis_leaf_spot"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Diffuse, even lighting is preferred. Avoid hard shadows or overexposure that can obscure lesion details like color and texture.", "occlusion_notes": "Minimize occlusion from overlapping leaves or other plant parts. The full shape and border of the lesion should be visible."}, "provenance": {"created_by": "VQA_Dataset_Designer", "reviewed_by": "Plant_Pathologist_Expert", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University extension guides for viticulture", "APS Compendium of Grape Diseases", "Peer-reviewed plant pathology literature"]}}
+{"schema_version": "1.0.0", "disease_id": "grape.disease_bacterial.bacterial_leaf_spot", "aliases": ["Grape bacterial spot", "Xanthomonas leaf spot", "Grape bacterial blight"], "crop": {"common_name": "grape", "scientific_name": "Vitis vinifera", "family": "Vitaceae"}, "condition": {"common_name": "bacterial leaf spot", "scientific_name": "Xanthomonas campestris pv. viticola", "alt_names": [], "pathogen": {"type": "disease_bacterial", "taxonomy": {"kingdom": "Bacteria", "phylum": "Pseudomonadota", "class": "Gammaproteobacteria", "order": "Lysobacterales", "family": "Lysobacteraceae", "genus": "Xanthomonas", "species": "X. campestris pv. viticola"}}}, "issue_type": "disease_bacterial", "transmission": {"vectors": [], "dispersal": ["rain_splash", "wind_driven_rain", "contaminated_tools", "infected_cuttings"], "overwintering": ["infected_canes", "dormant_buds", "plant_debris"]}, "environmental_risk": {"risk_factors": ["high_humidity", "frequent_rainfall", "warm_temperatures", "poor_air_circulation", "overhead_irrigation"], "temp_c_day": [25, 30], "temp_c_night": [], "relative_humidity_pct": [80, 100], "leaf_wetness_hours_threshold": 4}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area affected with scattered, small lesions.", "moderate": "11-40% of leaf area affected; lesions may be coalescing, some yellowing present.", "severe": ">40% of leaf area affected; extensive lesion coalescence, significant yellowing, and potential defoliation.", "notes": "Severity is estimated as the percentage of a single, representative leaf's surface area covered by lesions and associated chlorosis. This is a practical method for image labeling."}, "symptoms": {"leaves": ["Small, angular, water-soaked lesions appear first, often limited by leaf veins.", "Lesions darken over time to dark brown or black.", "A distinct chlorotic (yellow) halo frequently surrounds the dark lesions.", "Lesions can merge (coalesce) to form larger, irregular necrotic patches.", "The center of older lesions may fall out, creating a 'shot-hole' appearance.", "Infected leaves may become distorted, turn yellow, and drop prematurely."], "stems": ["Elongated, dark brown to black, slightly sunken cankers can form on young shoots.", "In severe cases, shoot tips may die back."], "fruit": ["Small, circular, sunken, dark brown spots may appear on berries, though this is less common."], "roots": [], "whole_plant": ["Reduced plant vigor and defoliation in severe infections."], "signs_microscopic_or_visible": ["Under very high humidity, shiny bacterial ooze may be visible on the surface of lesions."]}, "lookalikes": [{"condition_name": "black rot", "condition_id": "grape.disease_fungal.black_rot", "key_differences": ["Black rot lesions are circular with tan centers, whereas bacterial spots are angular and uniformly dark.", "Black rot lesions contain tiny black dots (pycnidia) in a ring, which are absent in bacterial spot.", "The halo around black rot lesions is typically a less distinct, brownish border, not a bright yellow halo."]}, {"condition_name": "anthracnose", "condition_id": "grape.disease_fungal.anthracnose", "key_differences": ["Anthracnose lesions are circular and sunken with a distinct gray-white center and a dark, raised border ('bird's-eye' spot).", "Bacterial spots are angular, not circular, and lack the gray center and raised border.", "Anthracnose often causes more severe and numerous 'shot-holes' than bacterial spot."]}, {"condition_name": "isariopsis leaf spot", "condition_id": "grape.disease_fungal.isariopsis_leaf_spot", "key_differences": ["Isariopsis lesions are reddish-brown and angular but often have a more diffuse, less defined border.", "The underside of Isariopsis lesions may show a whitish-gray moldy growth (fungal structures), which is absent in bacterial spot.", "The bright yellow halo is a much more consistent and prominent feature of bacterial leaf spot."]}], "management": {"cultural": ["Plant resistant or less susceptible grape cultivars.", "Prune to improve air circulation and promote faster drying of foliage.", "Avoid overhead irrigation; use drip irrigation instead.", "Remove and destroy infected canes and fallen leaves during dormancy.", "Use certified, disease-free planting material."], "biological": ["Applications of microbial products containing *Bacillus subtilis* may provide some suppression when used preventatively."], "chemical": ["Apply copper-based bactericides preventatively before rainy, warm periods.", "Consult local extension services for recommended and registered products and application timing."], "notes": "Management relies heavily on preventative cultural practices. Chemical controls are most effective when applied before infection becomes established."}, "qa_seeds": {"verification_templates": ["Is there a grape leaf in this image?", "Are there dark, angular spots on the leaf?", "Can you see a yellow halo around any of the spots?", "Does this leaf appear to have a disease?", "Is the plant a grapevine?"], "attribute_templates": ["What is the shape of the lesions on the leaf?", "What color are the spots?", "Is there a halo around the spots, and if so, what color is it?", "Do the spots appear to be bounded by the leaf veins?", "Do any of the lesions look water-soaked?", "Are the centers of any spots missing, creating a hole?", "Are multiple small spots merging into a larger patch?"], "diagnosis_templates": ["What disease causes angular, dark spots with yellow halos on grape leaves?", "Is this grape leaf infected with bacterial leaf spot?", "Based on the symptoms, what is the likely disease affecting this grape plant?"], "counterfactual_templates": ["If the spots were circular and had tiny black dots inside them, what disease would it be instead?", "If the lesions had a gray center and a dark, raised border, what would be the correct diagnosis?"], "severity_templates": ["What percentage of this leaf's area is affected by the disease?", "How would you rate the severity of the bacterial leaf spot infection: mild, moderate, or severe?", "Are the lesions still separate or are they coalescing?"], "confounders": ["black_rot", "anthracnose", "isariopsis_leaf_spot", "pest_damage"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Use even, diffuse lighting. Avoid harsh shadows or direct sunlight that can wash out colors and obscure key features like water-soaking or chlorotic halos.", "occlusion_notes": "The symptomatic leaf should be the primary subject, with minimal occlusion from other leaves, stems, or background elements. The focus must be sharp on the lesions."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T11:30:00Z", "updated_at": "2023-10-27T11:30:00Z", "sources": ["University extension guides for viticulture", "APS Compendium of Grape Diseases, Second Edition", "General plant pathology literature"]}}
+{"schema_version": "1.0.0", "disease_id": "grape.disease_fungal.downy_mildew", "aliases": ["Grapevine downy mildew", "Plasmopara viticola"], "crop": {"common_name": "Grape", "scientific_name": "Vitis spp.", "family": "Vitaceae"}, "condition": {"common_name": "Downy Mildew", "scientific_name": "Plasmopara viticola", "alt_names": [], "pathogen": {"type": "disease_oomycete", "taxonomy": {"kingdom": "Stramenopila", "phylum": "Oomycota", "class": "Oomycetes", "order": "Peronosporales", "family": "Peronosporaceae", "genus": "Plasmopara", "species": "viticola"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["wind", "rain splash"], "overwintering": ["oospores in infected leaf litter on the vineyard floor"]}, "environmental_risk": {"risk_factors": ["high relative humidity (>95%)", "frequent rainfall", "warm temperatures", "poor air circulation in the canopy"], "temp_c_day": [20, 26], "temp_c_night": [], "relative_humidity_pct": [95, 100], "leaf_wetness_hours_threshold": 4}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf surface showing symptoms. Lesions are few and scattered.", "moderate": "11-40% of leaf surface is symptomatic. Multiple lesions may be coalescing.", "severe": ">40% of leaf surface is symptomatic, often with significant necrosis, leading to premature defoliation or fruit rot.", "notes": "Assessment is typically made on the most affected leaves. For whole-plant severity, consider the proportion of affected leaves and the extent of fruit cluster infection."}, "symptoms": {"leaves": ["Yellow, circular, translucent spots resembling oil stains ('oilspots') on the upper leaf surface.", "White, downy or cotton-like fungal growth (sporulation) on the lower leaf surface, directly beneath the oilspots.", "Lesions may become angular as they are restricted by leaf veins, forming a mosaic-like pattern.", "Late-season infections can cause lesions to turn reddish-brown and necrotic.", "Severely infected leaves may curl, wither, and drop prematurely."], "stems": ["Infected young shoots, tendrils, and petioles can become water-soaked and distorted.", "White, downy sporulation may appear on infected stem tissues.", "Affected shoots may curl and eventually die."], "fruit": ["Young, infected berries turn light brown to purple, cease development, shrivel, and drop.", "Berries may be covered in the characteristic white downy sporulation.", "Later infections on older berries may not show sporulation but cause them to become soft, discolored, and easily detached."], "roots": [], "whole_plant": [], "signs_microscopic_or_visible": ["Visible white, downy sporulation (sporangiophores and sporangia) on the underside of leaves, shoots, and young fruit, most prominent in high humidity."]}, "lookalikes": [{"condition_name": "Powdery Mildew", "condition_id": "grape.disease_fungal.powdery_mildew", "key_differences": ["Downy mildew's fungal growth is white, downy/cottony, and almost exclusively on the **lower** leaf surface; powdery mildew's growth is grayish-white, dusty/powdery, and appears on **both** upper and lower surfaces.", "Downy mildew causes distinct yellow 'oilspots' on the upper leaf surface; powdery mildew causes more diffuse chlorosis or a dusty coating without distinct oilspots.", "Downy mildew lesions are often limited by veins (angular), while powdery mildew growth is more superficial and can cover the entire leaf without being vein-limited."]}, {"condition_name": "Black Rot", "condition_id": "grape.disease_fungal.black_rot", "key_differences": ["Black rot leaf spots are circular, tan-to-brown with a distinct dark border, and contain tiny black specks (pycnidia); downy mildew 'oilspots' are yellow and lack pycnidia.", "Downy mildew produces white, fuzzy growth on the leaf underside; black rot does not produce any visible fungal growth on leaves.", "On fruit, black rot causes berries to turn black, mummify, and become covered in black pycnidia, whereas downy mildew causes berries to become soft, discolored, and may show white sporulation."]}, {"condition_name": "Pest Damage", "condition_id": "grape.pest_insect.unspecified", "key_differences": ["Pest damage, such as from leafhoppers, often causes V-shaped yellowing at the leaf tip or margin ('hopperburn'), not the circular 'oilspots' of downy mildew.", "Pest damage will never produce white, downy fungal growth on the leaf underside.", "With pest damage, one might find insects, eggs, or cast skins on the leaf surface, which are absent in downy mildew."]}], "management": {"cultural": ["Promote good air circulation via proper pruning, trellising, and canopy management.", "Select disease-resistant or less susceptible grape cultivars.", "Remove and destroy fallen leaves and prunings to reduce overwintering inoculum.", "Use drip irrigation instead of overhead sprinklers to minimize leaf wetness duration."], "biological": ["Applications of bio-fungicides containing *Bacillus subtilis* or other beneficial microbes can offer some suppression when disease pressure is low."], "chemical": ["Apply protectant fungicides (e.g., copper, mancozeb) before infection events.", "Use systemic or translaminar fungicides (e.g., metalaxyl, fosetyl-al) for curative or post-infection control.", "Follow a spray schedule based on weather-driven disease prediction models.", "Rotate fungicide modes of action to mitigate the risk of pathogen resistance."], "notes": "Effective management relies on an integrated approach combining cultural practices with timely and targeted fungicide applications."}, "qa_seeds": {"verification_templates": ["Is there white, cotton-like growth on the bottom of the grape leaf?", "Does the top of the leaf have yellow spots that look like oil stains?", "Are the lesions on the leaf angular, as if stopped by the veins?", "Is there evidence of downy mildew on this grapevine?", "Confirm the presence of 'oilspots' on the upper leaf surface and corresponding white fuzz on the lower surface.", "Are the young grape berries shriveled and covered in a white mold?"], "attribute_templates": ["What color are the spots on the top of the leaf?", "Describe the growth on the underside of the leaf.", "What is the shape of the yellow lesions?", "Where on the plant are the symptoms most visible?", "What symptoms are present on the grape cluster?"], "diagnosis_templates": ["What disease causes yellow 'oilspots' and white fuzz on grape leaves?", "Based on the symptoms, what is the likely pathogen affecting this grapevine?", "What is wrong with this grape leaf?", "Can you identify the disease on this grape plant?"], "counterfactual_templates": ["If the white growth was dusty and on the top of the leaf, what disease would it be?", "What would the fruit symptoms be if this were black rot instead of downy mildew?"], "severity_templates": ["What percentage of this leaf's area is affected by downy mildew?", "How severe is the downy mildew infection on this leaf: mild, moderate, or severe?", "Based on the number of lesions, what is the severity of this disease?"], "confounders": ["powdery_mildew", "black_rot", "pest_damage"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Use even, diffuse lighting. Avoid direct, harsh sunlight which can create glare and obscure the translucent 'oilspot' symptom. Avoid deep shadows that can hide the downy growth.", "occlusion_notes": "For best diagnosis, images showing both the upper ('oilspot') and lower (downy growth) leaf surfaces are ideal. Ensure the symptomatic area is not heavily obscured by other leaves or stems."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["APS Compendium of Grape Diseases, Disorders, and Pests", "University Extension Plant Pathology Guides", "CABI Invasive Species Compendium"]}}
+{"schema_version": "1.0.0", "disease_id": "grape.healthy.healthy", "aliases": ["normal", "unaffected", "asymptomatic"], "crop": {"common_name": "grape", "scientific_name": "Vitis vinifera", "family": "Vitaceae"}, "condition": {"common_name": "healthy", "scientific_name": "", "alt_names": ["normal growth", "no disease"], "pathogen": {"type": "none", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "healthy", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Full sun exposure (6-8 hours/day)", "Well-drained soil", "Good air circulation through the canopy", "Appropriate irrigation and nutrient management"], "temp_c_day": [25, 32], "temp_c_night": [15, 20], "relative_humidity_pct": [40, 70], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Plant is completely free of visible symptoms of stress, disease, or pest damage.", "moderate": "Not applicable for a healthy plant.", "severe": "Not applicable for a healthy plant.", "notes": "This rubric confirms the absence of any condition. Any deviation from 'mild' indicates a non-healthy state."}, "symptoms": {"leaves": ["Uniformly green color, consistent with the cultivar.", "No spots, lesions, discoloration, or necrosis.", "Turgid, fully expanded leaf blades.", "Smooth leaf surfaces, free of any powdery or downy growth on either side.", "Leaf margins are intact and shaped according to the cultivar's characteristics."], "stems": ["Shoots and canes are firm and appropriately colored (green for new growth, brown/woody for mature canes).", "No cankers, galls, lesions, or dieback.", "Internodes are of a consistent, healthy length."], "fruit": ["Berries are uniform in size and color for their developmental stage.", "Fruit clusters are well-formed, without shriveled, mummified, or rotted berries.", "Berry skins are smooth, intact, and free from cracks or spots."], "roots": [], "whole_plant": ["Exhibits vigorous, upright growth.", "Maintains a well-distributed and appropriately dense canopy."], "signs_microscopic_or_visible": ["No visible fungal mycelium, spores, pycnidia, or bacterial ooze.", "Absence of significant insect populations or feeding damage."]}, "lookalikes": [{"condition_name": "powdery mildew", "condition_id": "grape.fungal.powdery_mildew", "key_differences": ["Healthy leaves have a clean, uniform surface, while early powdery mildew shows faint, whitish-gray patches that look like dust.", "The underside of a healthy leaf is clean, whereas powdery mildew can also appear on the underside.", "Healthy plant parts are not distorted, while severe powdery mildew can cause stunted and twisted shoots and leaves."]}, {"condition_name": "downy mildew", "condition_id": "grape.oomycete.downy_mildew", "key_differences": ["Healthy leaves are uniformly green, whereas downy mildew begins as pale yellow, oily-looking spots on the upper leaf surface.", "The underside of a healthy leaf is clean, unlike downy mildew which produces a distinct white, cottony fungal growth on the underside, especially in humid conditions.", "Healthy leaves remain flat and turgid, while downy mildew lesions can become sunken, brown, and necrotic over time."]}, {"condition_name": "black rot", "condition_id": "grape.fungal.black_rot", "key_differences": ["Healthy leaves are free of lesions, while black rot causes circular, tan-to-brown lesions with a distinct dark border.", "Within black rot lesions, tiny black specks (pycnidia) are visible, which are completely absent on healthy tissue.", "Healthy fruit is plump and colored appropriately for the cultivar, whereas black rot causes berries to shrivel, harden, and turn black into 'mummies'."]}], "management": {"cultural": ["Select disease-resistant cultivars suitable for the growing region.", "Practice proper pruning and canopy management to improve air circulation and sun exposure.", "Ensure proper site selection with well-drained soil.", "Use balanced fertilization to avoid excessive vegetative growth.", "Sanitize pruning tools between plants."], "biological": [], "chemical": ["Preventative fungicide programs are used in commercial production to maintain health in regions with high disease pressure."], "notes": "Management for a healthy plant focuses on preventative cultural practices that promote plant vigor and create an environment unfavorable to pathogens."}, "qa_seeds": {"verification_templates": ["Is this grape plant healthy?", "Are there any signs of disease or stress on the leaves?", "Does this plant appear to be free from any visible symptoms?", "Can you confirm the absence of any pathogens on this grape vine?", "Is the foliage on this plant showing normal, healthy characteristics?"], "attribute_templates": ["What color are the leaves?", "Describe the surface of the leaves.", "Are there any spots, lesions, or discolored areas on the leaves?", "Are the grape berries, if visible, uniform in appearance?", "How would you describe the overall vigor of the plant?", "Is there any powdery or fuzzy growth on the top or bottom of the leaves?"], "diagnosis_templates": ["What is the condition of this grape plant?", "Based on the visual evidence, what is the health status of this vine?", "Can you identify any disease or disorder affecting this plant?"], "counterfactual_templates": ["If this plant had powdery mildew, what would be different about the leaves?", "What would the fruit look like if this vine had black rot instead of being healthy?", "How would the underside of the leaves appear if this plant were infected with downy mildew?"], "severity_templates": ["How severe is the condition shown in the image?", "Is there any damage visible on the plant?", "What percentage of the leaf area is affected by symptoms?"], "confounders": ["grape.fungal.powdery_mildew", "grape.oomycete.downy_mildew", "grape.fungal.black_rot"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.4, "lighting_notes": "Even, diffuse lighting is preferred. Avoid harsh shadows or overexposure that can obscure leaf texture and color.", "occlusion_notes": "The primary subject (leaves, stems, or fruit) should be clearly visible and not significantly occluded by other objects or plant parts."}, "provenance": {"created_by": "expert_plant_pathologist", "reviewed_by": "expert_plant_pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["General plant pathology textbooks", "University extension guides for grape cultivation", "APS Compendium of Grape Diseases, Second Edition"]}}
+{"schema_version": "1.0.0", "disease_id": "grape.unknown.pest_damage", "aliases": ["Insect damage", "Arthropod feeding injury", "Mite damage"], "crop": {"common_name": "grape", "scientific_name": "Vitis spp.", "family": "Vitaceae"}, "condition": {"common_name": "Pest Damage", "scientific_name": "", "alt_names": ["Insect feeding", "Mite feeding", "Arthropod injury"], "pathogen": {"type": "insect", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "unknown", "transmission": {"vectors": ["Wind", "Infected plant material", "Equipment"], "dispersal": ["Active flight/crawling of pest", "Wind currents", "Human activity"], "overwintering": ["In plant debris", "In soil", "On bark or buds as eggs or adults"]}, "environmental_risk": {"risk_factors": ["Warm, dry weather (favors mites)", "High humidity (favors some insects and slugs)", "Presence of alternative weed hosts", "Lack of natural predators", "Monoculture plantings"], "temp_c_day": [20, 32], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "< 5% of leaf surface showing feeding damage, stippling, or webbing.", "moderate": "5-25% of leaf surface affected; some leaves may be curled or distorted.", "severe": "> 25% of leaf surface affected; significant defoliation, webbing, or gall formation may be present.", "notes": "Severity is estimated based on the total visible leaf area affected by symptoms like chewing, stippling, mining, or webbing across the plant or image frame."}, "symptoms": {"leaves": ["Irregularly shaped holes or chewed margins on leaf blades.", "Fine, pale yellow or white stippling on the upper leaf surface.", "Silvery or bronzed appearance on leaves.", "Winding, discolored trails or tunnels (mines) within the leaf tissue.", "Leaves are curled, puckered, or distorted.", "Presence of fine silk webbing, especially on the underside of leaves.", "Small, abnormal growths or galls on leaf surfaces or petioles."], "stems": ["Girdling, chewing marks, or small, raised bumps (scale insects) on shoots."], "fruit": ["Small holes, scars, or tunneling into berries.", "Sticky honeydew or sooty mold on berry clusters."], "roots": [], "whole_plant": ["Stunted growth or reduced vigor in cases of heavy infestation."], "signs_microscopic_or_visible": ["Visible insects, larvae, or eggs on leaves or stems.", "Frass (insect excrement) present on leaves or in webbing.", "Cast skins from molting insects."]}, "lookalikes": [{"condition_name": "Anthracnose", "condition_id": "grape.fungal.anthracnose", "key_differences": ["Anthracnose creates distinct, circular lesions with gray centers and raised, dark borders, which may drop out to form a 'shot-hole'.", "Pest chewing creates holes directly without the preceding lesion development and distinct border.", "Anthracnose also causes sunken, dark-bordered cankers on shoots, a symptom not typical of pest feeding."]}, {"condition_name": "Black Rot", "condition_id": "grape.fungal.black_rot", "key_differences": ["Black rot leaf spots are circular, tan-to-brown, and contain tiny black dots (pycnidia) within the lesion.", "Pest damage appears as irregular holes, stippling, or skeletonization, not well-defined lesions with pycnidia.", "On fruit, black rot causes berries to shrivel into hard, black mummies, which is distinct from insect boring or scarring."]}, {"condition_name": "Downy Mildew", "condition_id": "grape.fungal.downy_mildew", "key_differences": ["Downy mildew causes yellowish, oily-looking patches on the upper leaf surface, not the fine, discrete dots of stippling from mites or leafhoppers.", "A key sign of downy mildew is a white, fuzzy growth on the underside of the oily spots, which is absent in pest damage.", "Downy mildew spots are limited by leaf veins, creating an angular appearance, whereas pest stippling is often more randomly distributed."]}], "management": {"cultural": ["Monitor plants regularly for early detection of pests and damage.", "Remove and destroy heavily infested plant parts.", "Promote air circulation through proper pruning and canopy management.", "Manage weeds in and around the vineyard that can serve as alternative hosts."], "biological": ["Encourage natural predators like ladybugs, lacewings, and predatory mites.", "Use microbial insecticides like Bacillus thuringiensis (Bt) for caterpillars or Beauveria bassiana for other insects."], "chemical": ["Apply targeted insecticides or miticides only when necessary and based on proper pest identification.", "Use horticultural oils or insecticidal soaps for soft-bodied insects like aphids and mites.", "Consider timing applications to target vulnerable life stages of the pest."], "notes": "Proper identification of the specific pest is crucial for selecting the most effective and least harmful management strategy. Integrated Pest Management (IPM) is highly recommended."}, "qa_seeds": {"verification_templates": ["Is there evidence of chewing or holes on this grape leaf?", "Can you see any fine, pale dots or stippling on the leaves?", "Does this image show any signs of insect feeding?", "Are there any curled or distorted leaves visible?", "Is there any silk webbing present on the plant?"], "attribute_templates": ["What type of damage is visible on the leaf: chewing, stippling, or mining?", "Describe the appearance of the damage on the leaf surface.", "Are there any insects, larvae, or eggs visible?", "What color is the damage on the leaf?", "Is the damage located on the edge or the center of the leaf?", "Are the leaves skeletonized, with only the veins remaining?"], "diagnosis_templates": ["Based on the irregular holes and chewed margins, what is the likely cause of this damage?", "The fine stippling and webbing suggest what kind of problem?", "What issue causes winding trails inside a grape leaf?"], "counterfactual_templates": ["If the spots were circular with dark borders and tiny black dots inside, would it still be pest damage?", "If there was a white, fuzzy growth on the underside of the yellowed areas, what would the diagnosis be?"], "severity_templates": ["How severe is the pest damage on this leaf?", "What percentage of the leaf area is affected by feeding?", "Would you classify the damage as mild, moderate, or severe?"], "confounders": ["anthracnose", "black_rot"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Good, even lighting is needed to distinguish fine details like stippling, webbing, or small insects from shadows or glare.", "occlusion_notes": "The affected leaf or fruit area should be clearly visible and not significantly obscured by other leaves, branches, or background objects."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University extension guides on grape pest management", "APS Compendium of Grape Diseases, Disorders, and Pests"]}}
+{"schema_version": "1.0.0", "disease_id": "grape.disease_fungal.powdery_mildew", "aliases": ["Oidium", "Grape PM"], "crop": {"common_name": "grape", "scientific_name": "Vitis spp.", "family": "Vitaceae"}, "condition": {"common_name": "powdery mildew", "scientific_name": "Erysiphe necator", "alt_names": ["Oidium tuckeri"], "pathogen": {"type": "fungus", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Leotiomycetes", "order": "Erysiphales", "family": "Erysiphaceae", "genus": "Erysiphe", "species": "necator"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["Wind-borne conidia"], "overwintering": ["As chasmothecia (fruiting bodies) on bark or in leaf litter", "As mycelium in dormant buds"]}, "environmental_risk": {"risk_factors": ["High relative humidity (without free water)", "Shaded, dense canopies with poor air circulation", "Moderate temperatures", "Susceptible cultivars (e.g., Vitis vinifera)"], "temp_c_day": [20, 28], "temp_c_night": [], "relative_humidity_pct": [70, 90], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf or cluster surface area covered with sparse, powdery colonies.", "moderate": "11-40% of surface area covered; colonies are coalescing. Minor leaf distortion or berry scarring may be present.", "severe": ">40% of surface area covered; dense mycelial growth. Causes significant leaf distortion, berry cracking, and potential crop loss.", "notes": "Severity is assessed on the most affected plant part (leaves or fruit clusters). For fruit, severity also includes the extent of scarring (russeting) and cracking. Unlike many fungi, powdery mildew does not require free water (leaf wetness) for infection; in fact, rain can wash off spores."}, "symptoms": {"leaves": ["White to grayish, dusty or powdery patches, primarily on the upper leaf surface.", "Powdery patches may also appear on the lower leaf surface, especially in high-humidity conditions.", "Infected leaves can become distorted, curled upwards, or stunted.", "Late in the season, tiny black specks (chasmothecia) may appear within the white mycelial mats.", "Young, expanding leaves are most susceptible to infection."], "stems": ["White, powdery patches can develop on green shoots, petioles, and tendrils.", "Infected shoots may be stunted, weakened, or distorted."], "fruit": ["Young berries can be covered in the characteristic white powdery growth.", "As infected berries enlarge, the fungal growth can cause a web-like, rusty scarring (russeting) on the skin.", "Severe berry infections can inhibit development, leading to cracking and exposure to secondary rots.", "Infected berries may fail to ripen properly or may have off-flavors."], "roots": [], "whole_plant": ["Reduced plant vigor and stunted growth in severe, early-season infections."], "signs_microscopic_or_visible": ["Visible white to gray mycelium and conidia forming a powdery layer on plant surfaces.", "The powdery growth can be wiped off with a finger, revealing the plant tissue underneath.", "Presence of tiny, black, spherical chasmothecia (fruiting bodies), often embedded in the mycelial mat on leaves or canes late in the season."]}, "lookalikes": [{"condition_name": "downy mildew", "condition_id": "grape.disease_fungal.downy_mildew", "key_differences": ["Powdery mildew is typically on the upper leaf surface, while downy mildew's white, fuzzy growth is almost exclusively on the leaf underside.", "Powdery mildew appears as a dry, white 'powder', whereas downy mildew is more 'downy' or 'cottony' in texture.", "Downy mildew produces distinct yellow, oily spots on the upper leaf surface, which is not a symptom of powdery mildew.", "Powdery mildew thrives in high humidity but is inhibited by free water, while downy mildew requires leaf wetness to sporulate."]}, {"condition_name": "pest_damage", "condition_id": "grape.pest_damage.unspecified", "key_differences": ["Damage from leafhoppers causes fine, white or yellow stippling, not a continuous powdery patch.", "The white growth of powdery mildew can be physically wiped off, whereas pest-induced discoloration is integral to the leaf tissue.", "Spider mite damage often includes fine webbing and causes bronzing or yellowing, but lacks the distinct powdery texture of mildew."]}], "management": {"cultural": ["Promote good air circulation via proper pruning, trellising, and leaf removal in the fruit zone.", "Plant resistant or less susceptible grape varieties where available.", "Position vineyards to maximize sun exposure and air movement.", "Remove and destroy infected plant material after harvest to reduce overwintering inoculum."], "biological": ["Application of bio-fungicides containing *Bacillus subtilis* or *Ampelomyces quisqualis*.", "Use of certain microbial-based products that can act as antagonists or competitors."], "chemical": ["Prophylactic and curative applications of fungicides are the primary control method.", "Commonly used materials include sulfur, horticultural oils, potassium bicarbonate, and synthetic fungicides (e.g., DMIs, QoIs, SDHIs).", "Rotate fungicide chemical classes (FRAC groups) to manage and prevent the development of resistance."], "notes": "Effective management relies on a preventative spray program starting early in the growing season, as the disease is difficult to control once established."}, "qa_seeds": {"verification_templates": ["Is there a white, powdery substance on the top surface of the grape leaf?", "Does the grape cluster appear to be covered in a gray dust?", "Can you confirm the presence of a fungal growth that can be wiped off?", "Are there any signs of white, dusty patches on the green shoots?", "Does this grape leaf exhibit any white or grayish patches?"], "attribute_templates": ["What color is the powdery growth on the leaf?", "Where on the leaf is the mildew located: top, bottom, or both?", "Describe the texture of the substance on the berries.", "Are the infected berries cracked or do they show web-like scarring?", "Are there any tiny black dots visible within the white patches on the leaf?", "Is the leaf shape distorted or curled?"], "diagnosis_templates": ["Based on the white, powdery growth on the upper leaf surface, what disease is affecting this grape plant?", "The web-like scarring and dusty coating on these grapes are characteristic of which fungal disease?", "What is the likely cause of the white, dusty patches on the leaves and shoots?"], "counterfactual_templates": ["If the fuzzy growth were only on the underside of the leaf and the top had yellow, oily spots, what disease might it be instead of powdery mildew?", "What would you expect to see if this were spray residue from a pesticide instead of a fungal disease?"], "severity_templates": ["What percentage of this leaf's surface is covered by powdery mildew?", "How would you rate the severity of the powdery mildew infection on this grape cluster: mild, moderate, or severe?", "Based on the image, is the infection severe enough to cause berry cracking?"], "confounders": ["How can you distinguish these symptoms from those of grape downy mildew?", "Could the white spots on the leaf be caused by leafhopper damage instead of powdery mildew?", "Is it possible this is spray residue and not a disease?"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.1, "lighting_notes": "Diffuse, even lighting is optimal. Avoid harsh shadows or direct, overexposed sunlight which can wash out the white powdery texture.", "occlusion_notes": "The symptomatic leaf or fruit surface should be clearly visible and not heavily occluded by other leaves, stems, or trellis wires."}, "provenance": {"created_by": "Expert Plant Pathologist", "reviewed_by": "VQA Dataset Designer", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2024-05-16T11:00:00Z", "sources": ["University extension guides for viticulture", "APS Compendium of Grape Diseases, Disorders, and Pests", "General plant pathology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "grape.disease_fungal.yellow_leaf_spot", "aliases": ["grapevine yellow leaf spot", "Pseudocercospora leaf spot"], "crop": {"common_name": "grape", "scientific_name": "Vitis vinifera", "family": "Vitaceae"}, "condition": {"common_name": "yellow leaf spot", "scientific_name": "Pseudocercospora vitis", "alt_names": [], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Capnodiales", "family": "Mycosphaerellaceae", "genus": "Pseudocercospora", "species": "P. vitis"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["wind-driven rain", "splashing water", "wind"], "overwintering": ["infected fallen leaves", "lesions on canes"]}, "environmental_risk": {"risk_factors": ["high humidity", "frequent rainfall", "poor air circulation in canopy", "prolonged leaf wetness"], "temp_c_day": [25, 30], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 8}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area affected with distinct, small lesions.", "moderate": "11-40% of leaf area affected; some lesions may be coalescing.", "severe": ">40% of leaf area affected; extensive lesion coalescence, leaf yellowing, and premature defoliation is likely.", "notes": "Severity is assessed on the most affected leaves. Focus on the percentage of the leaf blade showing symptoms, not the entire plant."}, "symptoms": {"leaves": ["Small, circular to irregular yellow spots appear on the upper leaf surface.", "Lesions are initially bright yellow, often with a diffuse, halo-like margin.", "As lesions mature, the center turns necrotic, becoming tan, brown, or blackish.", "A tiny, dark dot (stroma) may be visible in the center of the necrotic area.", "On the lower leaf surface, the corresponding area appears water-soaked, then turns olive-green to brownish-black due to sporulation.", "Multiple spots can merge (coalesce) to form larger, irregular blotches.", "Infected leaves may curl, wither, and drop prematurely, especially under severe infection."], "stems": ["Lesions on young shoots are rare but can appear as elongated, dark spots."], "fruit": [], "roots": [], "whole_plant": ["Severe infections can lead to significant defoliation, reducing plant vigor and future yield."], "signs_microscopic_or_visible": ["Fuzzy, olive-green to dark sporulation (conidiophores and conidia) visible on the underside of leaf lesions, often with a hand lens."]}, "lookalikes": [{"condition_name": "black rot", "condition_id": "grape.disease_fungal.black_rot", "key_differences": ["Black rot lesions have a distinct dark border and a tan center, unlike the initial bright yellow of yellow leaf spot.", "Black rot lesions contain tiny black specks (pycnidia) often arranged in a ring, which are absent in yellow leaf spot.", "Yellow leaf spot has olive-green/brownish sporulation on the leaf underside, while black rot does not produce this sign on leaves."]}, {"condition_name": "downy mildew", "condition_id": "grape.disease_oomycete.downy_mildew", "key_differences": ["Downy mildew lesions ('oil spots') are pale yellow-green and greasy, not the bright, distinct yellow of yellow leaf spot.", "Downy mildew produces a prominent, white, fluffy fungal growth on the leaf underside, contrasting with the more subdued, olive-green to dark growth of yellow leaf spot.", "Downy mildew lesions are often angular and vein-limited, while yellow leaf spot lesions are more circular to irregular."]}, {"condition_name": "isariopsis leaf spot", "condition_id": "grape.disease_fungal.isariopsis_leaf_spot", "key_differences": ["Isariopsis lesions are typically reddish-brown to dark brown from the start, lacking the initial bright yellow phase.", "Isariopsis lesions are often angular and sharply defined by veins.", "The fungal signs for Isariopsis appear as small, dark, bristle-like structures (synnemata) on the leaf underside, different from the more diffuse sporulation of yellow leaf spot."]}], "management": {"cultural": ["Improve air circulation through canopy management, leaf pulling, and proper pruning.", "Remove and destroy infected fallen leaves and debris after the growing season to reduce inoculum.", "Use drip irrigation instead of overhead sprinklers to minimize leaf wetness.", "Select less susceptible grape varieties where possible."], "biological": ["Application of bio-fungicides based on Bacillus subtilis or other microbial antagonists may offer some suppression when used preventatively."], "chemical": ["Apply registered fungicides preventatively, especially during periods of high risk (warm, wet weather).", "Rotate fungicides with different modes of action (FRAC groups) to prevent resistance development.", "Ensure thorough spray coverage on both upper and lower leaf surfaces."], "notes": "An integrated pest management (IPM) approach combining cultural practices with timely fungicide applications is most effective for control."}, "qa_seeds": {"verification_templates": ["Is there a yellow spot on the grape leaf?", "Does the leaf show signs of a fungal infection?", "Can you confirm the presence of yellow leaf spot disease?", "Is the symptom shown on the leaf consistent with Pseudocercospora vitis infection?", "Does the image display symptoms of yellow leaf spot on a grapevine?"], "attribute_templates": ["What color is the center of the lesion?", "Is there a necrotic, tan or brown center to the yellow spot?", "Is there fuzzy, olive-green growth on the underside of the leaf lesion?", "Are the spots circular or irregular in shape?", "Are multiple spots merging into larger blotches?", "Does the yellow spot have a diffuse halo?"], "diagnosis_templates": ["What disease is causing the yellow spots on the grape leaf?", "Based on the necrotic centers and yellow halos, what is the likely diagnosis?", "Can you identify the fungal disease on this grapevine leaf?"], "counterfactual_templates": ["If the spots were oily and the growth on the underside was white and fluffy, what disease would it be?", "If the lesions had tiny black dots (pycnidia) arranged in a ring, what would be the diagnosis?"], "severity_templates": ["What percentage of the leaf area is covered by yellow spots?", "How severe is the yellow leaf spot infection on this leaf?", "Based on the rubric, is this infection mild, moderate, or severe?"], "confounders": ["black_rot", "downy_mildew", "isariopsis_leaf_spot"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Even, diffuse lighting is preferred. Avoid harsh shadows or direct sunlight that can wash out the yellow color of early lesions.", "occlusion_notes": "The symptomatic leaf, especially the upper surface, should be clearly visible and not heavily occluded by other leaves or stems."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University extension guides for viticulture", "APS Compendium of Grape Diseases, Disorders, and Pests", "Peer-reviewed plant pathology journals"]}}
+{"schema_version": "1.0.0", "disease_id": "hibiscus.healthy.healthy", "aliases": ["Normal hibiscus", "Vigorous hibiscus"], "crop": {"common_name": "Hibiscus", "scientific_name": "Hibiscus spp.", "family": "Malvaceae"}, "condition": {"common_name": "Healthy", "scientific_name": "", "alt_names": [], "pathogen": {"type": "none", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "healthy", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": [], "temp_c_day": [], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "0% of foliage affected.", "moderate": "Not applicable.", "severe": "Not applicable.", "notes": "Healthy is a binary state with zero symptoms. Any visible damage, discoloration, or stress would classify the plant under a different condition."}, "symptoms": {"leaves": ["Foliage is uniformly green, though color may vary from light green to deep, dark green by cultivar.", "Leaves are turgid, fully expanded, and well-formed.", "Leaf surfaces are smooth and have a natural gloss or matte finish, typical for the species.", "No spots, lesions, yellowing (chlorosis), browning (necrosis), or holes are present.", "Leaf margins are intact and not curled, distorted, or crispy."], "stems": ["Stems are firm, upright, and support the plant structure.", "Stem color is consistent, typically green to reddish-brown or woody, without cankers, lesions, or soft spots."], "fruit": ["Flowers (if present) are vibrant in color and fully formed.", "Petals are free from spots, blemishes, or discoloration.", "Buds are well-formed and not dropping prematurely."], "roots": [], "whole_plant": ["Exhibits vigorous growth with new leaves and shoots.", "Appears turgid and well-hydrated, not wilted.", "Foliage is dense and distributed appropriately for the cultivar."], "signs_microscopic_or_visible": []}, "lookalikes": [], "management": {"cultural": ["Provide consistent and adequate watering, allowing the top inch of soil to dry out between waterings.", "Ensure placement in a location with adequate sunlight (typically 6-8 hours of direct sun).", "Use well-draining soil to prevent root rot.", "Apply a balanced fertilizer during the growing season according to label directions.", "Prune as needed to encourage bushy growth and remove any dead or crossing branches."], "biological": [], "chemical": [], "notes": "Management for a healthy plant focuses on preventative care and maintaining optimal growing conditions."}, "qa_seeds": {"verification_templates": ["Is this hibiscus plant healthy?", "Are the leaves on this plant free of spots, yellowing, and damage?", "Does this plant show signs of vigorous growth?", "Can you confirm the absence of any disease or pest symptoms on this plant?", "Is the foliage uniformly green and turgid?"], "attribute_templates": ["What is the overall color of the leaves?", "Describe the condition of the stems.", "Are the leaves upright and turgid or are they wilting?", "Is there any evidence of discoloration on the foliage?", "How would you describe the overall appearance of the plant?", "Are there new shoots or leaves visible?"], "diagnosis_templates": ["What is the condition of this hibiscus plant?", "Is this hibiscus healthy or is it showing symptoms of stress or disease?", "Based on the visual evidence, diagnose the state of this plant."], "counterfactual_templates": ["If the leaves were yellow with brown, crispy edges, would the plant still be considered healthy?", "What would you expect to see if this plant were suffering from drought stress?", "How would this plant's appearance differ if it were senescing?"], "severity_templates": ["What percentage of the plant is affected by symptoms?", "How severe is the condition shown in the image?", "Is the plant mildly, moderately, or severely affected?"], "confounders": ["Could the slightly lighter green of new growth be mistaken for a nutrient deficiency?", "Is it possible that the lack of flowers is a symptom, or is it just not the blooming season?", "Could the uniform green be an early stage of senescence_or_dry?"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Requires bright, even lighting. Avoid hard shadows or overexposure that can obscure leaf color and texture.", "occlusion_notes": "The primary leaves and stems should be clearly visible and not heavily occluded by other plants or objects."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2024-05-21T10:00:00Z", "updated_at": "2024-05-21T10:00:00Z", "sources": ["University Extension Guides for Ornamental Plants", "APS Compendium of Ornamental Foliage Plant Diseases", "General Horticultural Best Practices"]}}
+{"schema_version": "1.0.0", "disease_id": "hibiscus.physiological_symptom.senescence_or_dry", "aliases": ["hibiscus leaf yellowing", "hibiscus drying out", "natural aging hibiscus", "water stress hibiscus"], "crop": {"common_name": "hibiscus", "scientific_name": "Hibiscus rosa-sinensis", "family": "Malvaceae"}, "condition": {"common_name": "Senescence or Dryness", "scientific_name": null, "alt_names": ["water stress", "natural leaf drop", "leaf aging", "drought stress"], "pathogen": {"type": "abiotic", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "physiological_symptom", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["inconsistent or insufficient watering", "low ambient humidity", "pot-bound root system", "high temperatures and excessive direct sun exposure", "end of natural leaf lifecycle (older leaves)", "poorly draining soil"], "temp_c_day": [28, 40], "temp_c_night": [], "relative_humidity_pct": [0, 40], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "One to a few lower leaves are uniformly yellow. No significant wilting or leaf drop.", "moderate": "Multiple lower and mid-plant leaves are yellow or brown and crispy. Some leaves have dropped. Minor wilting of upper foliage may be visible.", "severe": "Widespread yellowing and browning across the plant. Significant leaf drop resulting in a sparse appearance. Stems are visibly wilted or drooping.", "notes": "Severity is assessed based on the proportion and location of affected leaves on the whole plant, as well as the degree of wilting and leaf loss. Symptoms typically progress from the bottom of the plant upwards."}, "symptoms": {"leaves": ["Lower, older leaves turn a solid, uniform yellow without distinct spots.", "Yellowing progresses to browning as the leaf tissue desiccates.", "Affected leaves become dry, brittle, and crispy to the touch.", "Leaf margins may curl inwards or appear scorched from dryness.", "The entire plant may show signs of wilting, with leaves drooping, especially during the day.", "Affected leaves detach easily from the stem and fall off (abscission).", "Unlike nutrient deficiencies, the yellowing is typically uniform across the leaf blade, not patterned along veins."], "stems": ["In severe cases, younger, green stems may lose turgidity and droop.", "Stems of chronically stressed plants may appear woody and less vigorous."], "fruit": ["Flower buds may turn yellow and drop before they have a chance to open."], "roots": [], "whole_plant": ["Overall plant appears sparse or thin due to leaf loss.", "General lack of vigor and reduced flowering.", "Plant may appear wilted or droopy."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "Healthy", "condition_id": "hibiscus.physiological_symptom.healthy", "key_differences": ["Healthy leaves are uniformly green and turgid, while senescent/dry leaves are yellow, brown, and may be wilted or crispy.", "A healthy plant has dense foliage, whereas a dry plant often has significant leaf drop, especially from the lower sections.", "Healthy stems are firm and upright, but stems on a severely dry plant may droop."]}], "management": {"cultural": ["Provide consistent watering; check soil moisture 1-2 inches deep before watering again.", "Ensure the pot has adequate drainage holes to prevent waterlogging, which can also cause similar symptoms.", "If root-bound, repot into a slightly larger container with fresh, well-draining soil.", "Move the plant to a location with bright, indirect light to avoid scorching from intense, direct sun.", "Increase humidity around the plant by misting or using a pebble tray with water."], "biological": [], "chemical": [], "notes": "Management is focused on identifying and correcting the abiotic stressor. It is not a disease and does not require pesticides."}, "qa_seeds": {"verification_templates": ["Are any leaves on the plant yellow?", "Do the affected leaves feel dry or crispy?", "Are the yellowing leaves mostly at the bottom of the plant?", "Is the plant dropping leaves?", "Does the whole plant look droopy or wilted?"], "attribute_templates": ["What color are the leaves at the base of the plant?", "Describe the texture of the yellow leaves.", "Are there any spots or rings inside the yellow areas?", "Are the leaf edges curled or brown?", "Where on the plant is the leaf drop occurring?", "How do the stems look? Are they upright or drooping?"], "diagnosis_templates": ["Why are the bottom leaves of my hibiscus turning yellow and falling off?", "My hibiscus looks wilted and its leaves are crispy. What is the problem?", "Is my hibiscus sick if the older leaves are yellowing but the new growth looks fine?"], "counterfactual_templates": ["If the yellowing appeared as small, dark-bordered spots, would it still be dryness?", "What if the yellowing was concentrated on the newest leaves at the top of the plant?"], "severity_templates": ["Given that only two lower leaves are yellow, how severe is the condition?", "The plant has lost about a third of its leaves and is wilting. What is the severity?", "How would you rate the severity if the whole plant is drooping and most leaves are brown?"], "confounders": ["healthy"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.4, "lighting_notes": "Use diffuse, even lighting. Avoid harsh, direct sunlight which can create deep shadows and overexpose yellow leaves, making assessment difficult.", "occlusion_notes": "A clear view of the lower and middle sections of the plant is essential. If possible, include a whole-plant view to show the pattern of symptoms and overall wilting."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2024-05-21T10:00:00Z", "updated_at": "2024-05-21T10:00:00Z", "sources": ["University extension guides on hibiscus care", "Horticultural fact sheets on physiological plant stress", "General plant pathology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "mango.disease_fungal.anthracnose", "aliases": ["mango blossom blight", "mango fruit rot", "mango leaf spot"], "crop": {"common_name": "mango", "scientific_name": "Mangifera indica", "family": "Anacardiaceae"}, "condition": {"common_name": "anthracnose", "scientific_name": "Colletotrichum gloeosporioides", "alt_names": ["blossom blight", "fruit rot", "leaf blight", "twig blight"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Sordariomycetes", "order": "Glomerellales", "family": "Glomerellaceae", "genus": "Colletotrichum", "species": "gloeosporioides"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["rain_splash", "wind_driven_rain", "irrigation_water", "contaminated_tools"], "overwintering": ["infected_twigs", "dead_leaves", "mummified_fruit", "plant_debris"]}, "environmental_risk": {"risk_factors": ["high_humidity", "frequent_rain", "prolonged_leaf_wetness", "warm_temperatures", "dense_canopy"], "temp_c_day": [24, 32], "temp_c_night": [], "relative_humidity_pct": [95, 100], "leaf_wetness_hours_threshold": 12}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf or fruit surface area affected by distinct lesions.", "moderate": "11-40% of surface area affected; lesions may be coalescing; minor twig dieback or blossom blight present.", "severe": ">40% of surface area affected; extensive lesion coverage, significant fruit rot, defoliation, or severe blossom blight.", "notes": "Severity is assessed on the most affected plant part (leaves, fruit, or flowers). For blossom blight, severity can be estimated as the percentage of blighted panicles."}, "symptoms": {"leaves": ["Small, dark brown to black, irregular or angular spots appear on young, tender leaves.", "Lesions enlarge and may develop a necrotic, greyish-brown center with a dark border.", "A yellow chlorotic halo may surround the spots.", "In severe cases, lesion centers dry and fall out, creating a 'shot-hole' appearance.", "Infected leaves may become twisted or deformed."], "stems": ["Elongated, dark, sunken lesions (cankers) can form on young twigs and flower stalks (panicles).", "Infected flower panicles turn black, shrivel, and die, a symptom known as 'blossom blight'."], "fruit": ["Dark, sunken, circular lesions develop on the fruit skin, often as it begins to ripen.", "Lesions enlarge and coalesce, leading to extensive fruit rot.", "Under humid conditions, pinkish-orange, gelatinous spore masses (acervuli) erupt in a concentric pattern on the lesions."], "roots": [], "whole_plant": ["Twig dieback can occur, progressing downwards from infected panicles or terminal buds."], "signs_microscopic_or_visible": ["Presence of salmon-pink or orange-colored spore masses (acervuli) in the center of lesions, especially on fruit."]}, "lookalikes": [{"condition_name": "bacterial_canker", "condition_id": "mango.disease_bacterial.bacterial_canker", "key_differences": ["Bacterial canker lesions are typically raised, cracked, and have water-soaked margins, whereas anthracnose lesions are sunken.", "A gummy, amber-colored ooze may exude from bacterial cankers, a sign not present in anthracnose.", "Bacterial leaf spots are distinctly angular and limited by veins, while anthracnose spots are more irregular or rounded."]}, {"condition_name": "sooty_mold", "condition_id": "mango.disease_fungal.sooty_mold", "key_differences": ["Sooty mold is a superficial, black, powdery coating on the leaf/fruit surface that can be physically wiped off.", "Anthracnose causes necrotic lesions that are integrated into the plant tissue and cannot be wiped off.", "Sooty mold growth is always associated with the presence of honeydew from sap-sucking insects; anthracnose is a primary pathogen."]}], "management": {"cultural": ["Prune trees annually to open the canopy, improving air circulation and reducing humidity.", "Remove and destroy infected plant debris, including fallen leaves, twigs, and mummified fruit.", "Avoid overhead irrigation that wets the canopy for prolonged periods.", "Handle fruit carefully during harvest to prevent wounds that can serve as entry points for the fungus."], "biological": ["Application of bio-fungicides containing Bacillus subtilis or Trichoderma species can help suppress the pathogen when applied preventatively."], "chemical": ["Apply protective fungicides (e.g., copper-based, mancozeb, chlorothalonil) prior to and during flowering and early fruit development.", "Post-harvest hot water treatment of fruit (e.g., 5 minutes at 52-55°C) can control latent infections."], "notes": "Fungicide application must be timed correctly with weather forecasts, focusing on protecting new growth, flowers, and young fruit during warm, wet periods."}, "qa_seeds": {"verification_templates": ["Are there dark, sunken spots on this mango fruit?", "Do the leaves show irregular-shaped black spots?", "Are the flower clusters turning black and dying?", "Can you see a pinkish or orange substance in the center of the dark spots on the fruit?", "Is there evidence of twig dieback starting from the tip?", "Do the leaf spots have a 'shot-hole' appearance where the center has fallen out?"], "attribute_templates": ["What is the shape of the lesions on the leaves?", "Describe the texture of the spots on the fruit.", "Are the lesions on the twigs raised or sunken?", "What color are the spore masses on the fruit lesions?", "Is there a yellow halo around the leaf spots?", "How are the spots distributed on the fruit surface?"], "diagnosis_templates": ["What disease causes sunken black spots on mango fruit and blossom blight?", "A mango leaf has dark, irregular spots, some of which have a 'shot-hole' look. What is the likely cause?", "Based on the black, shriveled flower panicles and spots on young leaves, what is the diagnosis?"], "counterfactual_templates": ["If the black spots on the leaves were a superficial coating that could be wiped off, would it be anthracnose?", "If the lesions on the fruit were raised and oozing a sticky sap, could this be anthracnose?"], "severity_templates": ["What percentage of this fruit's surface is covered by anthracnose lesions?", "How would you rate the severity of blossom blight on this panicle: mild, moderate, or severe?", "Based on the number and size of the spots, is this a mild or severe case of anthracnose on the leaf?"], "confounders": ["bacterial_canker", "sooty_mold", "senescence_or_dry"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Diffuse, even lighting is preferred. Avoid hard shadows and direct sun glare which can obscure lesion details like color, texture, and the presence of spore masses.", "occlusion_notes": "The symptomatic area (leaf, fruit, or panicle) should be the primary focus and not significantly obscured by other plant parts or background objects."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["University of Florida IFAS Extension guides", "APS Compendium of Tropical Fruit Diseases", "CABI Invasive Species Compendium", "General plant pathology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "mango.pest_insect.gall_midge", "aliases": ["mango inflorescence midge", "mango blossom midge", "mango leaf gall midge"], "crop": {"common_name": "mango", "scientific_name": "Mangifera indica", "family": "Anacardiaceae"}, "condition": {"common_name": "gall midge", "scientific_name": "Procontarinia spp.", "alt_names": ["mango midge", "mango blossom gall midge"], "pathogen": {"type": "insect", "taxonomy": {"kingdom": "Animalia", "phylum": "Arthropoda", "class": "Insecta", "order": "Diptera", "family": "Cecidomyiidae", "genus": "Procontarinia", "species": ""}}}, "issue_type": "pest_insect", "transmission": {"vectors": ["Adult midges (flying)"], "dispersal": ["Wind", "Movement of infested plant material"], "overwintering": ["Pupae in the soil under the tree canopy", "Larvae within fallen leaves and galls"]}, "environmental_risk": {"risk_factors": ["High humidity", "Warm temperatures coinciding with new vegetative flushes or flowering", "Presence of overlapping mango flowering seasons in an area", "Lack of orchard sanitation"], "temp_c_day": [25, 32], "temp_c_night": [], "relative_humidity_pct": [70, 90], "leaf_wetness_hours_threshold": 10}, "severity_rubric": {"unit": "qualitative", "mild": "Few scattered galls on leaves or inflorescence; less than 10% of new shoots or panicles affected.", "moderate": "Multiple galls visible on many new shoots or panicles; 10-40% of panicles show damage, some flower drop is evident.", "severe": "Widespread gall formation on most new growth and panicles; >40% of panicles are affected, leading to significant flower drop, panicle drying, and poor fruit set.", "notes": "Severity is assessed by the percentage of new flushes (leaves, stems, or inflorescences) showing characteristic galls or larval damage, as this directly impacts vegetative growth and fruit set."}, "symptoms": {"leaves": ["Small, raised, blister-like or pimple-like galls on young leaves.", "Galls are initially greenish-yellow and later turn brown or black and necrotic.", "Leaves may become crinkled, distorted, or curled due to gall formation.", "A tiny circular exit hole may be visible on the gall after the adult midge emerges."], "stems": ["Galls can form on tender shoots and new stems, causing localized swelling and distortion.", "Severe infestation on terminal shoots can lead to dieback."], "fruit": ["Damage primarily occurs to flowers and flower buds, preventing fruit formation.", "Galls on the inflorescence axis and at the base of flowers cause them to dry and drop."], "roots": [], "whole_plant": ["Inflorescences (flower panicles) appear blighted, dried, or 'burnt' from a distance.", "Significant reduction in fruit set due to widespread flower damage and drop."], "signs_microscopic_or_visible": ["Tiny, maggot-like larvae (creamy white to orange) can be found if galls are carefully dissected.", "Minute, mosquito-like adult midges may be seen swarming near new growth, especially in the early morning."]}, "lookalikes": [{"condition_name": "anthracnose", "condition_id": "mango.fungal.anthracnose", "key_differences": ["Anthracnose causes dark, sunken, irregular lesions on leaves and flowers, not raised, circular galls.", "Gall midge damage results in a distinct raised or blister-like structure, while anthracnose spots are flat or sunken.", "Under wet conditions, anthracnose lesions on panicles may show pinkish-orange spore masses, which are absent in gall midge damage.", "Anthracnose leaf spots often have a 'shot-hole' appearance as the center dries; galls remain intact until the midge emerges."]}, {"condition_name": "bacterial canker", "condition_id": "mango.bacterial.bacterial_canker", "key_differences": ["Bacterial canker produces angular, water-soaked leaf spots that turn black, not raised, rounded galls.", "On stems, bacterial canker causes cracking and oozing of a gummy substance, whereas gall midge causes distinct swellings (galls).", "Gall midge damage contains a larva within the gall, which can be found by dissection; bacterial canker is a tissue infection without an insect."]}], "management": {"cultural": ["Prune and destroy infested plant parts such as galled leaves, shoots, and panicles.", "Maintain good orchard sanitation by collecting and burning fallen leaves and debris to destroy pupae.", "Avoid excessive nitrogen fertilization, which promotes excessive, susceptible new flushes.", "Synchronize flowering within the orchard to shorten the period of tissue susceptibility."], "biological": ["Conserve and encourage natural enemies like parasitoid wasps (e.g., Platygaster spp., Systasis spp.) and predators like ants and spiders."], "chemical": ["Apply appropriate systemic or contact insecticides during new flush emergence or flowering stages.", "Timing of sprays is critical and should target adult midges before egg-laying.", "Monitor pest populations using traps or visual inspection to determine the need for and timing of chemical applications."], "notes": "An Integrated Pest Management (IPM) approach is most effective, combining cultural and biological controls with judicious, well-timed chemical applications to minimize impact on pollinators."}, "qa_seeds": {"verification_templates": ["Is there evidence of gall midge on this mango leaf?", "Can you confirm the presence of small, raised galls on the flower panicles?", "Does this image show damage consistent with mango gall midge?", "Are there blister-like swellings on the new shoots?", "Is the inflorescence drying up due to gall formation at the flower base?"], "attribute_templates": ["What color are the galls on the leaves?", "Are the galls located on the leaves, stems, or flower panicles?", "Describe the shape of the leaf deformities.", "Is there a visible exit hole on any of the black galls?", "How are the flower panicles affected?", "Are the galls raised or sunken into the leaf surface?"], "diagnosis_templates": ["Based on the raised, pimple-like galls on the new leaves, what pest is affecting this mango?", "The mango flower panicle is drying out and has small swellings at the base of the flowers. What is the likely cause?", "What insect pest creates small, blister-like galls on mango leaves and shoots?"], "counterfactual_templates": ["If the dark spots were sunken and irregular instead of raised and blister-like, could it still be gall midge?", "If the stem was cracking and oozing gum but had no distinct galls, what else might it be?"], "severity_templates": ["How severe is the gall midge infestation on this flower panicle?", "What percentage of the new leaves appear to be affected by galls?", "Based on the number of dried flowers and galls, would you classify this damage as mild, moderate, or severe?"], "confounders": ["anthracnose", "bacterial_canker"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Good, even lighting is required to distinguish the raised, three-dimensional texture of galls from flat spots. Avoid harsh shadows that can obscure detail.", "occlusion_notes": "The galls on leaves, stems, or panicles must be clearly visible. Diagnosis is difficult if the affected area is heavily occluded by other plant parts."}, "provenance": {"created_by": "Expert Plant Pathologist and VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-11-15", "updated_at": "2023-11-15", "sources": ["CABI Plantwise Knowledge Bank", "University extension guides for tropical fruit pests", "APS Compendium of Tropical Fruit Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "mango.healthy.healthy", "aliases": ["normal mango", "unaffected mango", "asymptomatic mango"], "crop": {"common_name": "mango", "scientific_name": "Mangifera indica", "family": "Anacardiaceae"}, "condition": {"common_name": "healthy", "scientific_name": null, "alt_names": ["normal", "asymptomatic", "unaffected"], "pathogen": {"type": "abiotic", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "healthy", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Inadequate sunlight", "Improper watering (over/under)", "Nutrient deficiencies", "Extreme temperatures", "Poor air circulation"], "temp_c_day": [24, 30], "temp_c_night": [18, 24], "relative_humidity_pct": [50, 70], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "No visible symptoms of stress, disease, or pests. Plant exhibits vigorous growth.", "moderate": "Not applicable for a healthy condition.", "severe": "Not applicable for a healthy condition.", "notes": "For a healthy plant, severity is not applicable. The rubric describes a state of 0% affected area and absence of any negative indicators."}, "symptoms": {"leaves": ["Uniformly green color, ranging from light green or reddish on new flushes to deep green on mature leaves.", "Surface is typically smooth and can have a waxy or glossy appearance.", "Leaf shape is lanceolate (lance-shaped) with entire (smooth) margins.", "Absence of spots, lesions, pustules, holes, or powdery residues.", "No signs of yellowing (chlorosis), browning (necrosis), curling, or distortion.", "Veins are a similar color to the leaf blade and not darkened or water-soaked."], "stems": ["Stems, twigs, and branches are firm and turgid.", "Bark is intact without cankers, galls, cracks, or gummosis (oozing sap)."], "fruit": ["Skin is smooth, unblemished, and free of spots, cracks, or lesions.", "Color is uniform and appropriate for the cultivar and stage of ripeness."], "roots": ["Not typically visible in standard images."], "whole_plant": ["Dense, well-developed canopy with vigorous new growth flushes.", "Upright and stable posture."], "signs_microscopic_or_visible": ["Complete absence of fungal mycelia, spores, bacterial ooze, insect bodies, frass, or honeydew."]}, "lookalikes": [{"condition_name": "senescence_or_dry", "condition_id": "mango.abiotic.senescence_or_dry", "key_differences": ["Healthy leaves are uniformly green, while senescent leaves turn uniformly yellow or brown before dropping.", "Senescence primarily affects the oldest, lowest leaves on the plant, whereas the rest of the canopy remains healthy.", "Drought stress causes browning and crisping at the leaf tips and margins, which is distinct from the overall green of a healthy leaf."]}, {"condition_name": "sooty_mold", "condition_id": "mango.fungal.sooty_mold", "key_differences": ["Healthy leaves have a clean, often glossy surface.", "Sooty mold presents as a superficial, black, velvety or crusty layer on the leaf surface that can often be physically wiped off.", "The black coating of sooty mold is a sign of sap-sucking insects, which are absent on a clean, healthy leaf.", "Sooty mold blocks light but does not directly damage the leaf tissue, which remains green underneath the coating."]}], "management": {"cultural": ["Provide 6-8 hours of direct sunlight daily.", "Plant in well-drained soil to prevent root rot.", "Water deeply and regularly, allowing the top soil to dry out between waterings.", "Apply a balanced fertilizer appropriate for fruit trees during active growth periods.", "Prune annually to remove dead or crossing branches and improve air circulation within the canopy."], "biological": [], "chemical": [], "notes": "Management for a healthy plant focuses on maintaining optimal growing conditions to prevent the onset of biotic and abiotic problems."}, "qa_seeds": {"verification_templates": ["Is this a healthy mango leaf?", "Does this image show a mango plant with no signs of disease?", "Are the leaves in the image free from spots, discoloration, or damage?", "Can you confirm that this is an example of a healthy, asymptomatic mango plant?", "Is the leaf surface clean and uniformly colored?"], "attribute_templates": ["What color are the leaves?", "Describe the texture of the leaf surface.", "Are there any spots, blemishes, or residues on the leaves?", "Are the leaf margins smooth or irregular?", "How would you describe the overall vigor of the plant?", "Are there any signs of pests, such as insects or webbing?"], "diagnosis_templates": ["What is the condition of this mango plant?", "Is this mango plant healthy or does it show symptoms of a problem?", "Based on the visual evidence, provide a diagnosis for this plant."], "counterfactual_templates": ["If this plant had anthracnose, what would you see on the leaves and stems?", "What would be different about this leaf if it had powdery mildew?", "How would this leaf's appearance change if it were affected by gall midge?"], "severity_templates": ["What is the severity of the condition shown?", "What percentage of the plant is affected by symptoms?", "On a scale of healthy to severe, how would you rate this plant's condition?"], "confounders": ["senescence_or_dry", "sooty_mold", "anthracnose"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.4, "lighting_notes": "Even, diffuse lighting is optimal. Avoid hard shadows, glare, or backlighting that can obscure leaf color and texture.", "occlusion_notes": "The plant part of interest (e.g., a leaf or fruit) should be at least 80% visible and not significantly occluded by other plant parts or background objects."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2024-05-21T11:00:00Z", "updated_at": "2024-05-21T11:00:00Z", "sources": ["General university extension guides for mango cultivation", "APS Compendium of Tropical Fruit Diseases", "CABI Invasive Species Compendium"]}}
+{"schema_version": "1.0.0", "disease_id": "mango.disease_fungal.powdery_mildew", "aliases": ["mango blight", "ashy blight"], "crop": {"common_name": "mango", "scientific_name": "Mangifera indica", "family": "Anacardiaceae"}, "condition": {"common_name": "powdery mildew", "scientific_name": "Oidium mangiferae", "alt_names": [], "pathogen": {"type": "fungus", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Leotiomycetes", "order": "Erysiphales", "family": "Erysiphaceae", "genus": "Oidium", "species": "mangiferae"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["wind"], "overwintering": ["dormant mycelium in buds", "infected leaves and malformed panicles"]}, "environmental_risk": {"risk_factors": ["high relative humidity at night", "cool, dry weather", "cloudy conditions", "dense canopy with poor air circulation"], "temp_c_day": [20, 28], "temp_c_night": [10, 22], "relative_humidity_pct": [60, 90], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of the surface of leaves, panicles, or fruit covered in sparse, white fungal growth.", "moderate": "11-40% of surface area affected; patches are coalescing and some leaf curling or flower drop is evident.", "severe": ">40% of surface area covered, leading to severe leaf distortion, blighting of panicles, or fruit russeting and cracking.", "notes": "Assessment should focus on the most affected plant part in the image (e.g., a single leaf, a flower cluster, or a fruit). The percentage refers to the area covered by the visible white fungal sign. Powdery mildew does not require free water (leaf wetness) to infect."}, "symptoms": {"leaves": ["White to grayish, powdery fungal growth on upper and lower leaf surfaces.", "Initial symptoms are small, isolated, white patches.", "Patches coalesce to cover large areas of the leaf.", "Infected young leaves may become curled, distorted, and smaller than normal.", "Older lesions may turn purplish-brown or black as the tissue dies."], "stems": ["White powdery growth can cover young, succulent shoots and panicle axes."], "fruit": ["White powdery patches appear on the skin of young, developing fruit.", "Infected fruit skin develops a purplish-brown, corky, or russeted appearance.", "Severe infection may cause young fruit to crack, deform, or drop prematurely."], "roots": [], "whole_plant": ["Infected inflorescences (panicles) appear blighted and are heavily coated in white powder.", "Severe infection causes widespread flower drop, leading to poor fruit set."], "signs_microscopic_or_visible": ["The primary sign is the white, superficial mycelium and conidia, which can be easily rubbed off the plant surface."]}, "lookalikes": [{"condition_name": "sooty_mold", "condition_id": "mango.disease_fungal.sooty_mold", "key_differences": ["Sooty mold is a black or dark brown, crust-like layer, whereas powdery mildew is white or grayish and has a powdery texture.", "Sooty mold grows on insect honeydew and can often be washed or peeled off in a sheet, revealing healthy tissue underneath.", "Powdery mildew is a parasitic infection that causes tissue distortion, discoloration, and necrosis beneath the fungal growth."]}, {"condition_name": "anthracnose", "condition_id": "mango.disease_fungal.anthracnose", "key_differences": ["Anthracnose causes distinct, dark brown to black, sunken, necrotic lesions on leaves and fruit, not a superficial coating.", "Powdery mildew is a white, powdery growth that covers the plant surface without causing discrete, sunken spots initially.", "In humid conditions, anthracnose lesions on fruit may produce pinkish-orange spore masses, which are absent in powdery mildew.", "Anthracnose often causes a 'tear stain' pattern on fruit, while powdery mildew causes a more uniform russeting or scabbing."]}], "management": {"cultural": ["Prune trees annually to improve air circulation and sunlight penetration into the canopy.", "Remove and destroy fallen leaves and infected panicles to reduce inoculum.", "Choose resistant mango cultivars where available.", "Avoid excessive nitrogen fertilization, which promotes susceptible new growth."], "biological": ["Application of bio-fungicides containing *Bacillus subtilis* or *Ampelomyces quisqualis*.", "Use of neem oil or other horticultural oils can be effective as an eradicant and protectant."], "chemical": ["Application of wettable sulfur fungicides before and during the flowering period.", "Use of systemic fungicides such as triazoles (e.g., myclobutanil, propiconazole) or strobilurins, rotating chemical classes to prevent resistance.", "Potassium bicarbonate-based fungicides can be used to disrupt fungal cells on contact."], "notes": "Preventative fungicide sprays are most effective. Timing is critical, beginning at panicle emergence and continuing through fruit set, especially during cool, dry, and cloudy weather."}, "qa_seeds": {"verification_templates": ["Is there a white, dust-like coating on the [plant_part]?", "Does the image show a powdery, grayish-white substance on the mango leaves or flowers?", "Can you confirm the presence of a fungal growth that looks like it has been sprinkled with flour?", "Are the flower panicles covered in a white, moldy substance?", "Is there a white coating on the surface of the young mango fruit?"], "attribute_templates": ["What color is the powdery growth on the [plant_part]?", "Describe the texture of the substance on the leaf surface.", "Are the affected young leaves curled or twisted?", "Is the skin of the small fruit russeted or cracked underneath the white growth?", "What part of the plant is most heavily coated in the white powder?", "Can the white substance be rubbed off the leaf?"], "diagnosis_templates": ["What disease causes a white, powdery coating on mango leaves, flowers, and fruit?", "Based on the blighted flower panicles covered in a white, dusty fungus, what is the diagnosis?", "If young mango leaves are distorted and covered in a superficial white growth, what is the likely condition?"], "counterfactual_templates": ["If the growth on the leaves were black and sooty instead of white and powdery, what would the condition be?", "If the leaves had distinct, dark, sunken spots instead of a white coating, what disease might it be?"], "severity_templates": ["What percentage of the flower panicle is covered by powdery mildew?", "On a scale of mild, moderate, or severe, how would you rate this powdery mildew infection?", "Is the powdery mildew coverage on the leaf less than 10%, between 11-40%, or greater than 40%?"], "confounders": ["sooty_mold", "anthracnose"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Use diffuse, even lighting. Avoid direct, harsh sunlight which can overexpose the white mildew and hide its texture. Avoid deep shadows.", "occlusion_notes": "The symptomatic area should be clearly visible and in focus. Minimal occlusion from other leaves or branches is preferred to allow for accurate assessment of coverage and texture."}, "provenance": {"created_by": "expert_plant_pathologist_vqa_designer", "reviewed_by": "expert_plant_pathologist_vqa_designer", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:01Z", "sources": ["APS Compendium of Tropical Fruit Diseases", "University Extension Plant Disease Management Guides", "CABI Invasive Species Compendium"]}}
+{"schema_version": "1.0.0", "disease_id": "mango.physiological_symptom.senescence_or_dry", "aliases": ["Leaf drying", "Leaf scorch", "Drought stress", "Water stress", "Natural aging"], "crop": {"common_name": "Mango", "scientific_name": "Mangifera indica", "family": "Anacardiaceae"}, "condition": {"common_name": "Senescence or Dry", "scientific_name": null, "alt_names": ["Leaf senescence", "Water deficit symptom", "Tip burn"], "pathogen": {"type": "Abiotic", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "physiological_symptom", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Inadequate irrigation or drought", "High ambient temperatures", "Low relative humidity", "Poor soil water retention", "Root damage or compaction", "Nutrient deficiency (e.g., potassium)", "Natural end of leaf lifespan"], "temp_c_day": [35, 45], "temp_c_night": [], "relative_humidity_pct": [10, 40], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area shows yellowing or browning, typically confined to the leaf tip or extreme margins.", "moderate": "11-40% of the leaf area is affected, with significant browning and curling spreading from the margins inward.", "severe": ">40% of the leaf area is brown, brittle, and necrotic; widespread leaf drop may be evident.", "notes": "Severity is assessed as the percentage of a single leaf's surface showing symptoms. For whole-plant assessment, consider the proportion of leaves exhibiting symptoms."}, "symptoms": {"leaves": ["Progressive yellowing (chlorosis) that typically starts on older, lower leaves.", "Leaf tips and margins turn tan to dark brown, becoming dry and brittle.", "A distinct boundary may exist between the necrotic brown tissue and the green tissue.", "Affected leaves may curl inwards or droop (wilt).", "The texture of necrotic areas is papery or crispy.", "In severe cases, the entire leaf turns brown and abscises (drops) prematurely."], "stems": ["Young, non-woody stems and petioles may wilt or droop.", "In cases of prolonged drought, terminal shoot dieback can occur."], "fruit": ["Under severe water stress, fruit may shrivel, develop sunburn, or drop prematurely."], "roots": [], "whole_plant": ["A general wilted or drooping appearance, especially during the hottest part of the day.", "Reduced plant vigor and stunted growth."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "Anthracnose", "condition_id": "mango.fungal_disease.anthracnose", "key_differences": ["Anthracnose causes distinct, dark brown to black, angular or irregular spots, often with a 'shot-hole' appearance, unlike the marginal browning of senescence.", "Anthracnose lesions can appear anywhere on the leaf, including on young leaves, while senescence typically begins on the margins of older leaves.", "In humid conditions, anthracnose lesions may exhibit tiny pinkish-orange spore masses (acervuli), which are absent in physiological drying."]}, {"condition_name": "Dieback", "condition_id": "mango.fungal_disease.dieback", "key_differences": ["Dieback is the progressive death of a branch from the tip downwards, affecting the entire woody structure, whereas senescence is a leaf-specific condition.", "Senescence causes leaves to yellow and brown, while dieback causes entire twigs and branches to dry out, often with leaves still attached.", "If a dieback-affected stem is cut, the internal vascular tissue will be discolored (brown/black), a symptom not associated with leaf senescence."]}], "management": {"cultural": ["Provide consistent and adequate irrigation, especially during fruit development and dry seasons.", "Apply a layer of organic mulch around the tree base to conserve soil moisture and regulate soil temperature.", "Ensure proper soil drainage to prevent root suffocation, which can mimic drought symptoms.", "Conduct soil and leaf analysis to identify and correct nutrient deficiencies, particularly potassium.", "Protect young trees from extreme sun and wind exposure."], "biological": [], "chemical": ["Application of potassium-based fertilizers if a deficiency is confirmed.", "Use of anti-transpirant sprays can sometimes help reduce water loss in high-stress periods, but is not a substitute for proper irrigation."], "notes": "Management is entirely focused on correcting the underlying abiotic stress, primarily related to water and nutrient management."}, "qa_seeds": {"verification_templates": ["Does this leaf have brown, crispy edges?", "Is the leaf yellowing from the tip or margins inward?", "Does the leaf appear wilted or droopy?", "Is the browning concentrated at the leaf tip?", "Can you see any leaves that are entirely brown and dry?"], "attribute_templates": ["What is the color of the affected area on the leaf margin?", "Where on the leaf are the dry symptoms located?", "Describe the texture of the brown part of the leaf.", "Is the yellowing occurring on an old leaf or new growth?", "Is there a clear line between the green and brown tissue?"], "diagnosis_templates": ["Is this mango leaf showing signs of drying out or water stress?", "What physiological condition causes leaf tips and margins to turn brown and brittle?", "Is this leaf senescing?"], "counterfactual_templates": ["If this were anthracnose, would you expect to see scattered dark spots instead of just browning at the edges?", "If the plant were healthy, would the leaves be fully green and turgid?"], "severity_templates": ["What percentage of this leaf's surface area is brown and dry?", "How severe is the leaf drying on a scale of mild, moderate, or severe?", "Is more or less than a third of the leaf affected by browning?"], "confounders": ["anthracnose", "dieback"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Use even, diffuse light. Avoid harsh shadows and overexposure, which can obscure the color and texture of the necrotic areas.", "occlusion_notes": "The symptomatic leaf, especially its tip and margins, should be fully visible and not obscured by other plant parts."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Plant Pathologist", "created_at": "2024-05-21T10:00:00Z", "updated_at": "2024-05-21T10:00:00Z", "sources": ["University extension guides on mango production", "APS Compendium of Tropical Fruit Diseases", "General plant physiology and horticulture textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "papaya.disease_fungal.anthracnose", "aliases": ["papaya anthracnose", "ripe fruit rot", "blossom-end rot"], "crop": {"common_name": "papaya", "scientific_name": "Carica papaya", "family": "Caricaceae"}, "condition": {"common_name": "Anthracnose", "scientific_name": "Colletotrichum gloeosporioides", "alt_names": ["Ripe Fruit Rot"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Sordariomycetes", "order": "Glomerellales", "family": "Glomerellaceae", "genus": "Colletotrichum", "species": "gloeosporioides"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["rain splash", "wind", "contaminated tools", "infected fruit", "infected seeds"], "overwintering": ["infected plant debris", "lesions on stems and petioles", "mummified fruit"]}, "environmental_risk": {"risk_factors": ["high humidity", "frequent rainfall", "warm temperatures", "poor air circulation", "fruit injury or bruising"], "temp_c_day": [25, 30], "temp_c_night": [], "relative_humidity_pct": [90, 100], "leaf_wetness_hours_threshold": 12}, "severity_rubric": {"unit": "qualitative", "mild": "A few small, scattered lesions on leaves; 1-2 small (<1 cm) spots on a single fruit.", "moderate": "Multiple lesions on several leaves, some coalescing; several distinct lesions on fruit, covering up to 25% of the surface.", "severe": "Extensive leaf spotting, blight, and defoliation; large, sunken, coalescing lesions on fruit covering >25% of the surface, often with visible pink/orange spore masses.", "notes": "Severity is most critical on fruit due to marketability. A qualitative assessment is practical as it combines leaf and fruit symptoms. The presence of visible spore masses often indicates moderate to severe infection."}, "symptoms": {"leaves": ["Small, water-soaked spots appear, often on older, lower leaves.", "Spots enlarge into irregular, brown to black necrotic lesions.", "Lesions may develop a 'shot-hole' appearance as necrotic centers fall out.", "In severe infections, leaves may yellow and drop prematurely."], "stems": ["Elongated, sunken, dark lesions can form on petioles."], "fruit": ["Small, circular, water-soaked spots appear on ripening or ripe fruit.", "Spots enlarge rapidly, becoming sunken, circular, and black.", "Center of mature fruit lesions develops pink to orange gelatinous spore masses (acervuli), often in concentric rings.", "Lesions can coalesce to cover large areas of the fruit surface.", "Infection penetrates the flesh, causing a bitter rot."], "roots": [], "whole_plant": ["Premature fruit drop may occur in heavily infected plants."], "signs_microscopic_or_visible": ["Visible pinkish-orange, gelatinous spore masses (acervuli) in the center of mature fruit lesions, especially under humid conditions."]}, "lookalikes": [], "management": {"cultural": ["Improve air circulation via proper plant spacing and pruning of lower leaves.", "Practice field sanitation by removing and destroying infected plant debris and mummified fruit.", "Avoid overhead irrigation to minimize leaf and fruit wetness duration.", "Handle fruit carefully during harvest and transport to prevent wounds.", "Harvest fruit at the mature-green stage."], "biological": ["Application of antagonists like *Bacillus subtilis* or *Trichoderma* species can have a suppressive effect as part of an IPM program."], "chemical": ["Apply preventative fungicides (e.g., mancozeb, copper-based, azoxystrobin) during weather favorable for disease development.", "Post-harvest hot water treatment (e.g., 48°C for 20 minutes) or fungicide dips can control latent infections on fruit."], "notes": "An integrated disease management (IDM) approach is essential, combining sanitation, cultural practices, and judicious fungicide use. Post-harvest treatments are critical for extending shelf life."}, "qa_seeds": {"verification_templates": ["Is there a sunken, circular, black lesion on this papaya fruit?", "Can you see pink or orange-colored masses in the center of the fruit spot?", "Are there small, brown-to-black spots on the older leaves?", "Does the fruit show signs of a soft rot beneath the skin lesions?", "Are the spots on the fruit circular and sunken, rather than just skin-deep rings or markings?"], "attribute_templates": ["What color are the spore masses in the center of the fruit lesion?", "Describe the shape and texture of the spots on the fruit.", "Are the lesions on the fruit raised, flat, or sunken?", "Which part of the plant shows the most distinct symptoms?", "Do the leaf spots have a 'shot-hole' appearance where the center has fallen out?"], "diagnosis_templates": ["Based on the sunken black spots with orange spore masses on the fruit, what is the likely disease?", "What fungal disease is causing these circular necrotic spots on the leaves and rotting lesions on the fruit?", "Given the warm, humid conditions and these specific fruit symptoms, what is the diagnosis?"], "counterfactual_templates": ["If the spots on the fruit were C-shaped rings instead of sunken black lesions, what disease might it be?", "What would you expect to see on the leaves if this were bacterial blight instead of anthracnose?"], "severity_templates": ["What percentage of this fruit's surface is covered by sunken black lesions?", "How would you rate the severity of anthracnose on this papaya: mild, moderate, or severe?", "Are the lesions on the leaves few and scattered, or are they numerous and merging together?"], "confounders": ["bacterial_blight_spot", "ringspot_virus", "pest_damage"]}, "data_requirements": {"min_resolution_px": 480, "min_roi_fraction": 0.2, "lighting_notes": "Even, diffuse lighting is best. Avoid harsh shadows or direct sunlight that can obscure lesion details like color, texture, and the presence of spore masses.", "occlusion_notes": "Ensure the primary symptoms, especially on fruit, are not obscured by leaves, hands, or other objects. Multiple angles of the symptomatic area are beneficial."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["APS Compendium of Tropical Fruit Diseases", "University Extension Plant Pathology Guides", "CABI Invasive Species Compendium"]}}
+{"schema_version": "1.0.0", "disease_id": "papaya.disease_bacterial.bacterial_blight_spot", "aliases": ["bacterial leaf spot", "bacterial canker", "bacterial black spot"], "crop": {"common_name": "papaya", "scientific_name": "Carica papaya", "family": "Caricaceae"}, "condition": {"common_name": "bacterial blight spot", "scientific_name": "Erwinia papayae", "alt_names": ["bacterial leaf and fruit spot", "bacterial canker of papaya"], "pathogen": {"type": "disease_bacterial", "taxonomy": {"kingdom": "Bacteria", "phylum": "Proteobacteria", "class": "Gammaproteobacteria", "order": "Enterobacterales", "family": "Erwiniaceae", "genus": "Erwinia", "species": "E. papayae"}}}, "issue_type": "disease_bacterial", "transmission": {"vectors": [], "dispersal": ["rain splash", "wind-driven rain", "contaminated pruning tools", "infected seeds", "irrigation water"], "overwintering": ["infected plant debris on the ground", "active cankers on stems and petioles", "infected seeds"]}, "environmental_risk": {"risk_factors": ["high humidity", "prolonged leaf wetness", "warm temperatures", "wounding from hail or mechanical damage", "poor air circulation"], "temp_c_day": [25, 32], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 10}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "< 5% of leaf or fruit surface area affected with small, isolated lesions.", "moderate": "5-25% of surface area affected; some lesions may be coalescing.", "severe": "> 25% of surface area affected; extensive necrosis, blight, stem cankers, or fruit rot is present.", "notes": "Severity is assessed on the most affected plant part visible. The presence of large stem cankers or significant bacterial ooze may automatically classify the condition as severe."}, "symptoms": {"leaves": ["Small, angular, water-soaked spots appear, often bounded by leaf veins.", "Lesions enlarge and turn dark brown to black with a characteristic greasy appearance.", "A distinct yellow halo frequently surrounds the dark lesions.", "In severe cases, lesions merge, causing large necrotic areas, leaf shredding, and defoliation (blight).", "Petioles can develop elongated, dark, water-soaked streaks or cankers."], "stems": ["Water-soaked, dark cankers can form on the main stem, particularly at leaf and fruit nodes.", "Cankers may exude a gummy, whitish bacterial ooze in humid conditions."], "fruit": ["Small, circular, water-soaked spots appear on young, green fruit.", "Fruit spots enlarge, become sunken, and turn dark brown to black.", "A sticky, clear to whitish bacterial ooze may be present on fruit lesions.", "Infected fruit often rots internally and drops from the plant prematurely."], "roots": [], "whole_plant": ["Stunted growth and significant defoliation in severe, systemic infections.", "Dieback of the growing point ('top rot') can occur."], "signs_microscopic_or_visible": ["Bacterial ooze (a sticky, whitish or amber-colored exudate) emerging from lesions on fruit, stems, or petioles, especially in high humidity."]}, "lookalikes": [{"condition_name": "anthracnose", "condition_id": "papaya.disease_fungal.anthracnose", "key_differences": ["Anthracnose lesions on fruit are circular, sunken, and often feature pinkish-orange spore masses (acervuli) in the center, unlike the whitish bacterial ooze of blight.", "Bacterial blight spots on leaves are distinctly angular and vein-limited with a greasy look, whereas anthracnose spots are more circular or irregular.", "Bacterial blight produces a characteristic foul odor in rotting tissues, which is absent in anthracnose."]}, {"condition_name": "ringspot_virus", "condition_id": "papaya.disease_viral.ringspot_virus", "key_differences": ["Ringspot virus causes systemic mosaic, mottling, and yellowing patterns, not discrete, necrotic, water-soaked spots.", "PRSV leads to severe leaf distortion and a 'shoestring' appearance in new growth, which are not symptoms of bacterial blight.", "Fruit symptoms of PRSV are distinctive concentric rings or C-shaped markings, completely different from the sunken, dark, rotting spots of bacterial blight."]}], "management": {"cultural": ["Use certified disease-free seeds and planting material.", "Remove and destroy infected plant debris, including fallen leaves and fruit.", "Improve air circulation through proper plant spacing and selective pruning.", "Avoid overhead irrigation to minimize leaf wetness duration.", "Disinfect pruning tools with a 10% bleach solution or alcohol between plants."], "biological": ["Application of microbial products containing *Bacillus subtilis* strains may provide some preventative suppression."], "chemical": ["Preventative applications of copper-based bactericides (e.g., copper hydroxide, copper oxychloride) can be effective if applied before rainy seasons.", "Always check local regulations and extension recommendations for registered products and application timing."], "notes": "Chemical treatments are primarily preventative and are often ineffective once the disease is well-established. Integrated management focusing on cultural practices is key."}, "qa_seeds": {"verification_templates": ["Is there evidence of angular, water-soaked spots on the papaya leaf?", "Can you see dark brown or black lesions with a greasy appearance?", "Are there circular, sunken, dark spots on the papaya fruit?", "Is a sticky, whitish ooze visible on any of the lesions?", "Does the image show elongated, dark cankers on the stem or petiole?"], "attribute_templates": ["What shape are the spots on the leaf?", "What color is the halo around the leaf lesion?", "Describe the texture of the spots on the fruit.", "What is the color of the lesions on the leaves?", "Is there any substance exuding from the cankers?", "Are the leaf spots bounded by the veins?"], "diagnosis_templates": ["Based on the angular, water-soaked lesions with yellow halos on the leaves, what is the likely disease?", "The papaya fruit has sunken black spots exuding a sticky ooze. What bacterial disease is this?", "Given the combination of greasy leaf spots, stem cankers, and fruit rot, what is the diagnosis?"], "counterfactual_templates": ["If the spots on the fruit had pinkish-orange spore masses instead of bacterial ooze, what would the disease be?", "If the leaves showed a mosaic pattern and distortion instead of necrotic spots, what would be the issue?"], "severity_templates": ["What percentage of this leaf's surface is covered by these dark, greasy lesions?", "How would you rate the severity of the bacterial blight on this fruit: mild, moderate, or severe?", "Based on the number and size of the lesions, what is the severity of this disease?"], "confounders": ["anthracnose", "ringspot_virus", "pest_damage"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Avoid harsh shadows or overexposure that can obscure the 'water-soaked' or 'greasy' appearance of lesions. Diffuse, even lighting is best.", "occlusion_notes": "Ensure the primary symptoms (lesions, cankers) are not heavily obscured by other leaves or debris. At least 50% of a characteristic lesion should be clearly visible."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["University extension plant pathology guides", "APS Compendium of Tropical Fruit Diseases", "CABI Invasive Species Compendium", "Peer-reviewed plant pathology journals"]}}
+{"schema_version": "1.0.0", "disease_id": "papaya.healthy.healthy", "aliases": ["normal papaya", "unaffected papaya", "asymptomatic"], "crop": {"common_name": "papaya", "scientific_name": "Carica papaya", "family": "Caricaceae"}, "condition": {"common_name": "healthy", "scientific_name": "", "alt_names": ["normal", "asymptomatic", "no disease"], "pathogen": {"type": "none", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "healthy", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Optimal growing conditions", "Absence of pathogens and pests", "Balanced nutrition", "Adequate water"], "temp_c_day": [21, 33], "temp_c_night": [18, 24], "relative_humidity_pct": [60, 80], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Not applicable. Plant is healthy.", "moderate": "Not applicable. Plant is healthy.", "severe": "Not applicable. Plant is healthy.", "notes": "Severity scoring does not apply to a healthy plant. Any visible damage or symptoms would classify it as unhealthy."}, "symptoms": {"leaves": ["Deep green, uniform coloration without yellowing or mottling.", "Large, palmately-lobed leaves with smooth, intact margins.", "Leaf surfaces are glossy and free of spots, lesions, or powdery residue.", "Petioles are firm, turgid, and uniformly green.", "No signs of curling, distortion, or wilting."], "stems": ["Main trunk is straight, sturdy, and unblemished.", "Stem surface is typically green to grayish-green, with prominent leaf scars.", "No cankers, soft spots, or oozing sap."], "fruit": ["Fruit skin is smooth, firm, and uniformly colored (green when immature, turning yellow/orange when ripe).", "No sunken spots, lesions, or rings on the fruit surface.", "Fruit is well-formed and not misshapen."], "roots": [], "whole_plant": ["Vigorous, upright growth habit.", "Dense canopy of healthy leaves at the top of the plant."], "signs_microscopic_or_visible": ["Absence of any visible fungal growth, bacterial ooze, insect colonies, or webbing."]}, "lookalikes": [{"condition_name": "mosaic virus", "condition_id": "papaya.viral.mosaic_virus", "key_differences": ["Healthy leaves have uniform green color, whereas mosaic virus causes light green/yellow patches or mottling.", "Healthy leaves have a normal, flat shape; mosaic virus can cause blistering or slight distortion of the leaf lamina.", "Veins on healthy leaves are uniformly green; mosaic virus can cause vein clearing (yellowing of veins)."]}, {"condition_name": "spider mites", "condition_id": "papaya.pest.spider_mites", "key_differences": ["Healthy leaves have a clean, glossy surface; spider mite infestation causes fine stippling (tiny yellow/white dots).", "The underside of a healthy leaf is clean; spider mites create fine, silky webbing, especially on the underside.", "Healthy leaves are deep green; heavy mite feeding can cause leaves to appear bronzed or yellowed."]}, {"condition_name": "ringspot virus", "condition_id": "papaya.viral.ringspot_virus", "key_differences": ["Healthy stems and petioles are uniformly green; ringspot virus can cause dark green, 'oily' streaks.", "Healthy fruit has smooth, unblemished skin; ringspot virus causes characteristic concentric rings on the fruit.", "Healthy leaves are uniformly colored; ringspot virus can cause a distinct mosaic or mottling pattern, especially on younger leaves."]}], "management": {"cultural": ["Plant certified virus-free seedlings.", "Ensure well-drained soil to prevent root rot.", "Maintain proper spacing for good air circulation.", "Practice good field sanitation, removing weeds and crop debris.", "Provide balanced fertilization and consistent irrigation."], "biological": [], "chemical": [], "notes": "Management for a healthy plant focuses on preventative practices to maintain vigor and minimize stress, which reduces susceptibility to pests and diseases."}, "qa_seeds": {"verification_templates": ["Does this plant appear healthy and free of disease?", "Are the leaves uniformly green and well-formed?", "Is there any sign of yellowing, spots, or distortion on the foliage?", "Can you confirm the absence of pests or fungal growth on this papaya plant?", "Does the overall plant show vigorous growth?"], "attribute_templates": ["What color are the leaves?", "Describe the texture of the leaf surface.", "Are the leaf margins smooth or damaged?", "Is the stem free of cankers or blemishes?", "How would you describe the shape of the fruit?", "Are there any spots or rings visible on the leaves or fruit?"], "diagnosis_templates": ["What is the condition of this papaya plant?", "Is this papaya plant healthy or diseased?", "Based on the visual evidence, diagnose the state of this plant."], "counterfactual_templates": ["If this plant had ringspot virus, what would you expect to see on the fruit?", "What would the leaves look like if this plant were infested with spider mites?", "If the leaves had yellow mottling, could the plant still be considered healthy?"], "severity_templates": ["Is there any damage visible on this plant?", "How would you rate the health of this plant on a scale from asymptomatic to severe?"], "confounders": ["mosaic_virus", "spider_mites", "ringspot_virus"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse lighting is preferred. Avoid harsh shadows or overexposure that can obscure leaf color and texture.", "occlusion_notes": "The primary leaves and, if present, fruit should be clearly visible and not heavily occluded by other foliage or objects."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2024-05-22", "updated_at": "2024-05-22", "sources": ["General plant pathology textbooks", "University extension guides for papaya cultivation", "APS Compendium of Tropical Fruit Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "papaya.unknown.pest_damage", "aliases": ["insect damage", "arthropod feeding injury", "chewing damage", "sucking damage"], "crop": {"common_name": "Papaya", "scientific_name": "Carica papaya", "family": "Caricaceae"}, "condition": {"common_name": "Pest Damage", "scientific_name": null, "alt_names": ["Insect damage", "Arthropod injury"], "pathogen": {"type": "insect", "taxonomy": {"kingdom": "Animalia", "phylum": "Arthropoda", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "unknown", "transmission": {"vectors": [], "dispersal": ["Active flight/crawling of pest", "Wind", "Contaminated equipment", "Movement of infested plant material"], "overwintering": ["In crop debris", "In soil", "On alternate weed hosts", "As eggs on plant surfaces"]}, "environmental_risk": {"risk_factors": ["Warm, humid conditions", "Monoculture planting", "Presence of alternate host plants", "Lack of natural enemies", "Drought stress can make plants more susceptible to sucking pests"], "temp_c_day": [25, 32], "temp_c_night": [], "relative_humidity_pct": [60, 85], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf or fruit surface area shows feeding damage (e.g., holes, stippling, discoloration).", "moderate": "11-40% of leaf or fruit surface area is affected; some leaf curling or distortion may be present.", "severe": ">40% of leaf or fruit surface area is damaged; significant defoliation, fruit drop, or plant stunting is visible.", "notes": "Severity is assessed based on the total visible area affected by feeding, stippling, webbing, or sooty mold associated with pests. For discrete damage like holes, estimate the equivalent area lost."}, "symptoms": {"leaves": ["Irregularly shaped holes or chewed margins (skeletonization)", "Fine, pale stippling or pinprick-like spots on the upper surface", "Yellowing (chlorosis) or bronzing of leaf tissue", "Distortion, curling, or puckering of new growth", "Presence of fine, silk-like webbing, especially on the underside", "Sticky 'honeydew' residue on leaf surfaces, which may be shiny"], "stems": ["Boring holes in petioles or young stems, sometimes with frass (sawdust-like excrement)", "Galls or swollen areas", "Presence of white, waxy, or cottony masses in leaf axils"], "fruit": ["Superficial scarring, scabs, or blemishes on the skin", "Sunken, discolored spots, sometimes with oozing latex", "Holes or tunnels leading into the fruit pulp"], "roots": [], "whole_plant": ["Stunted growth or lack of vigor", "Presence of sooty mold, a black fungus growing on honeydew"], "signs_microscopic_or_visible": ["Visible insects, larvae, or eggs on plant surfaces", "White, waxy, or cottony masses indicating mealybugs or scale", "Tiny moving specks (mites) on the underside of leaves"]}, "lookalikes": [{"condition_name": "Spider Mites", "condition_id": "papaya.pest.spider_mites", "key_differences": ["General pest damage can include large, chewed holes, which are absent with spider mites.", "Spider mite damage is specifically fine, uniform stippling and bronzing, often accompanied by visible webbing.", "The causal agents for spider mite damage are tiny, moving arachnids, unlike larger insects (e.g., caterpillars) that cause chewing damage."]}, {"condition_name": "Mealybug", "condition_id": "papaya.pest.mealybug", "key_differences": ["Mealybug infestations are defined by the presence of distinct white, cottony, or waxy masses, a sign not present in general chewing damage.", "Mealybug damage is from sap-sucking, causing yellowing and stunting, not holes or skeletonization.", "Heavy sooty mold on honeydew is a strong indicator of mealybugs (or other sucking pests), but not chewing pests."]}], "management": {"cultural": ["Remove and destroy infested plant parts and crop debris.", "Maintain good weed control to eliminate alternate hosts.", "Use reflective mulches to deter flying insects like aphids and thrips.", "Ensure proper plant nutrition and irrigation to improve plant vigor and tolerance."], "biological": ["Encourage natural predators such as ladybugs, lacewings, and parasitic wasps by planting diverse flora.", "Introduce commercially available predatory mites or insects where appropriate."], "chemical": ["Apply horticultural oils or insecticidal soaps for soft-bodied pests, ensuring thorough coverage.", "Use targeted insecticides (e.g., Bt for caterpillars) based on positive pest identification.", "Avoid broad-spectrum pesticides that harm beneficial insects and pollinators."], "notes": "The specific management strategy depends heavily on identifying the exact pest causing the damage. Integrated Pest Management (IPM) is highly recommended for sustainable control."}, "qa_seeds": {"verification_templates": ["Is there evidence of chewing on the papaya leaf, such as holes or ragged edges?", "Can you see any fine, pale dots or stippling on the surface of the leaf?", "Are there any signs of insect life, like larvae, eggs, or webbing?", "Does the fruit have any superficial scars, blemishes, or bore holes?", "Is there a sticky residue or black sooty mold on the leaves or stem?", "Does this papaya plant show signs of pest damage?"], "attribute_templates": ["What type of damage is visible on the leaf: holes, stippling, or discoloration?", "Describe the shape of the damage on the leaf.", "Where on the plant is the pest damage most concentrated?", "Is there any webbing visible on the underside of the leaves?", "What color is the damaged tissue on the papaya fruit?", "Are the edges of the holes on the leaf smooth or jagged?"], "diagnosis_templates": ["Based on the chewed holes and lack of water-soaked lesions, what is the likely cause of this damage?", "The stippling and webbing on the leaves suggest what kind of problem?", "What general issue is affecting this papaya plant?"], "counterfactual_templates": ["If the spots were angular and water-soaked, would this still be considered pest damage?", "If there were no visible insects, frass, or webbing, could this still be pest damage?", "Would this be considered healthy if the leaves did not have these holes?"], "severity_templates": ["How severe is the pest damage on this leaf, on a scale of mild, moderate, or severe?", "What percentage of the leaf area is affected by pest feeding?", "Is the damage minimal or is it causing significant defoliation?"], "confounders": ["spider_mites", "mealybug", "bacterial_blight_spot"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Good, even lighting is crucial. Avoid harsh shadows that can obscure fine details like stippling, mites, or small insects. Backlighting can help reveal webbing.", "occlusion_notes": "The area showing damage should be clearly visible and in focus. Avoid images where other leaves or objects obscure the primary symptoms."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["General university extension guides for tropical fruit pests", "APS Compendium of Tropical Fruit Diseases", "CABI Invasive Species Compendium"]}}
+{"schema_version": "1.0.0", "disease_id": "papaya.disease_viral.leaf_curl_virus", "aliases": ["Papaya Leaf Curl Disease", "PLCD", "PaLCuV"], "crop": {"common_name": "papaya", "scientific_name": "Carica papaya", "family": "Caricaceae"}, "condition": {"common_name": "leaf curl virus", "scientific_name": "Papaya leaf curl virus", "alt_names": ["Papaya leaf curl disease"], "pathogen": {"type": "virus", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "Geminiviridae", "genus": "Begomovirus", "species": "Papaya leaf curl virus"}}}, "issue_type": "disease_viral", "transmission": {"vectors": ["Whitefly (Bemisia tabaci)"], "dispersal": ["Vector movement between plants", "Movement of infected planting material"], "overwintering": ["Infected perennial papaya plants", "In alternate weed hosts"]}, "environmental_risk": {"risk_factors": ["High whitefly populations", "Proximity to infected papaya or alternate host plants", "Warm, dry conditions favoring vector activity"], "temp_c_day": [25, 35], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Slight downward curling or crinkling on a few young leaves; plant growth is not significantly affected.", "moderate": "Significant leaf curling, crinkling, and vein thickening on multiple leaves, especially in the upper canopy; some stunting is visible.", "severe": "Extreme leaf distortion, leathery texture, and severe stunting of the entire plant; reduced or no fruit production; prominent vein swelling on leaf undersides.", "notes": "Severity is based on the extent of leaf deformation and overall plant stunting, as viral symptoms are systemic and affect new growth most dramatically."}, "symptoms": {"leaves": ["Downward or inward curling of leaf margins, resembling an inverted cup.", "Severe crinkling, puckering, and distortion of the leaf lamina.", "Veins appear thickened, swollen, and are often darker green.", "In some cases, vein clearing (yellowing of tissue around veins) occurs on young leaves.", "Affected leaves become leathery, brittle, and reduced in size.", "Petioles are often twisted and shortened."], "stems": ["Shortened internodes, leading to a crowded or 'bunchy top' appearance."], "fruit": ["Reduced fruit set or complete failure to produce fruit.", "Fruits that do form may be small, deformed, and of poor quality."], "roots": [], "whole_plant": ["Severe stunting and reduced plant vigor.", "The top of the plant appears distorted and bushy due to shortened internodes and curled leaves."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "ringspot_virus", "condition_id": "papaya.disease_viral.ringspot_virus", "key_differences": ["Ringpot virus causes strong mosaic/mottling and 'shoestring' (narrowed lamina) symptoms, which are less common in leaf curl.", "Ringpot virus produces characteristic dark green ringspots on fruit, a symptom absent in leaf curl disease.", "Leaf curl causes more pronounced downward curling and a leathery texture, while ringspot causes more varied distortions and color breaks."]}, {"condition_name": "spider_mites", "condition_id": "papaya.pest_damage.spider_mites", "key_differences": ["Spider mite damage includes fine webbing on the leaf underside, which is absent in viral infections.", "Mite damage causes stippling (tiny yellow/white spots), not the systemic vein thickening seen in leaf curl.", "The mites themselves (tiny moving dots) and their eggs may be visible with a hand lens on the leaf underside."]}, {"condition_name": "mealybug", "condition_id": "papaya.pest_damage.mealybug", "key_differences": ["Mealybug infestations show visible white, cottony masses of insects in leaf axils or on stems.", "Sooty mold, a black fungus growing on mealybug honeydew, is often present with heavy infestations.", "Leaf distortion from mealybugs is localized around the pest colony, whereas leaf curl symptoms are systemic on new growth."]}], "management": {"cultural": ["Use certified virus-free planting material.", "Immediately remove and destroy infected plants (roguing) to reduce inoculum sources.", "Control weed hosts in and around the orchard that harbor the virus and whiteflies.", "Install yellow sticky traps to monitor whitefly populations."], "biological": ["Encourage natural predators of whiteflies, such as lacewings, ladybugs, and predatory mites."], "chemical": ["Apply systemic or contact insecticides to control the whitefly vector population.", "Use reflective (e.g., silver) plastic mulch to repel whiteflies from young plants."], "notes": "Management is prophylactic, focusing on controlling the whitefly vector and removing virus sources. There is no cure for an already infected plant."}, "qa_seeds": {"verification_templates": ["Are the papaya leaves curling downwards?", "Do the leaves look crinkled and feel leathery?", "Are the veins on the underside of the leaves swollen or thicker than normal?", "Does the top of the plant look stunted or bunched together?", "Is the overall plant smaller than other healthy plants of the same age?"], "attribute_templates": ["What is the primary direction of the leaf curl?", "Describe the texture of the most affected leaves.", "Are the symptoms more prominent on older or younger leaves?", "Are the leaf petioles twisted or shortened?", "Is there any sign of insects, like whiteflies or webbing, on the plant?"], "diagnosis_templates": ["Given the severe downward curling, leathery leaves, and stunted growth, could this be papaya leaf curl virus?", "How can I distinguish papaya leaf curl virus from ringspot virus based on these leaf symptoms?", "Is the absence of fruit ringspots and leaf mosaic consistent with a diagnosis of leaf curl virus?"], "counterfactual_templates": ["If this were spider mite damage, what other signs like stippling or webbing would I see?", "What would the leaves look like if this were ringspot virus instead?", "If the plant were healthy, how would the shape and size of the top leaves differ?"], "severity_templates": ["On a scale of mild to severe, how would you rate the leaf distortion on this plant?", "Is the plant stunting mild, moderate, or severe?", "What percentage of the plant's canopy shows symptoms of leaf curl?"], "confounders": ["ringspot_virus", "spider_mites", "mealybug"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.4, "lighting_notes": "Use even, diffuse lighting. Avoid harsh midday sun which creates strong shadows that obscure leaf texture and vein details.", "occlusion_notes": "Ensure a clear view of the upper canopy and new growth, as these areas show the most characteristic symptoms. Move aside other leaves if necessary to photograph the distorted leaves and shortened internodes."}, "provenance": {"created_by": "Expert Plant Pathologist", "reviewed_by": "VQA Dataset Designer", "created_at": "2023-10-27T11:30:00Z", "updated_at": "2023-10-27T11:30:00Z", "sources": ["University extension guides for tropical fruit pathology", "APS Compendium of Tropical Fruit Diseases", "Peer-reviewed plant virology literature on Begomoviruses"]}}
+{"schema_version": "1.0.0", "disease_id": "papaya.pest_insect.mealybug", "aliases": ["Papaya mealybug infestation", "Paracoccus marginatus infestation"], "crop": {"common_name": "papaya", "scientific_name": "Carica papaya", "family": "Caricaceae"}, "condition": {"common_name": "mealybug", "scientific_name": "Paracoccus marginatus", "alt_names": ["papaya mealybug"], "pathogen": {"type": "insect", "taxonomy": {"kingdom": "Animalia", "phylum": "Arthropoda", "class": "Insecta", "order": "Hemiptera", "family": "Pseudococcidae", "genus": "Paracoccus", "species": "marginatus"}}}, "issue_type": "pest_insect", "transmission": {"vectors": ["ants (tend and protect mealybugs)", "birds", "farm workers (on clothing/equipment)"], "dispersal": ["wind (crawlers)", "movement of infested plant material"], "overwintering": ["In tropical/subtropical climates, they persist year-round on host plants and do not truly overwinter."]}, "environmental_risk": {"risk_factors": ["warm, dry conditions", "presence of ant colonies", "dense plant canopy", "lack of natural enemies"], "temp_c_day": [25, 30], "temp_c_night": [], "relative_humidity_pct": [60, 80], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Small, isolated colonies of mealybugs (less than 5) found on a few leaves or stems. Little to no sooty mold.", "moderate": "Multiple, larger colonies present on several leaves, stems, or young fruit. Some sooty mold is visible and leaves may show slight yellowing.", "severe": "Heavy encrustations of mealybugs on leaves, stems, and fruit. Significant sooty mold, leaf yellowing, stunting, and plant dieback are evident.", "notes": "Severity is assessed by the number and size of mealybug colonies and the extent of associated sooty mold and plant damage."}, "symptoms": {"leaves": ["Yellowing, curling, or distortion of young leaves (chlorosis).", "Leaves appear stunted or crinkled.", "Presence of a sticky, clear substance (honeydew) on leaf surfaces.", "Growth of a superficial black sooty mold on honeydew deposits."], "stems": ["White, cottony, waxy masses clustered in leaf axils and on young stems.", "Stunting of terminal growth, leading to a 'bunchy top' appearance."], "fruit": ["White, waxy masses on the fruit surface, especially near the stem end.", "Distortion or stunting of young, developing fruit.", "Sooty mold growth on fruit, making it unmarketable."], "roots": [], "whole_plant": ["Overall stunted growth.", "Reduced plant vigor and fruit production."], "signs_microscopic_or_visible": ["Visible white, cottony, waxy masses covering the insects.", "Small (2-3 mm), oval, pinkish-to-yellowish insects visible underneath the waxy coating.", "Presence of ants actively tending the mealybug colonies."]}, "lookalikes": [{"condition_name": "spider mites", "condition_id": "papaya.pest_mite.spider_mites", "key_differences": ["Spider mites create fine, silken webbing on leaf undersides; mealybugs produce distinct, cottony, waxy masses.", "Spider mite damage appears as tiny yellow or white stippling on leaves; mealybug damage causes more general yellowing and distortion.", "Individual spider mites are very small, mobile dots; mealybug colonies are larger, mostly stationary, and white."]}, {"condition_name": "anthracnose", "condition_id": "papaya.fungal.anthracnose", "key_differences": ["Sooty mold from mealybugs is a superficial black coating that can be wiped off; anthracnose lesions are sunken, circular, and part of the fruit tissue.", "Anthracnose spots on fruit may develop pink or orange spore masses in the center, not white cottony material.", "Mealybugs are insects, often accompanied by ants; anthracnose is a fungal disease with no associated insects."]}], "management": {"cultural": ["Prune and destroy heavily infested plant parts.", "Control ant populations with baits or barriers, as they protect mealybugs.", "Avoid excessive nitrogen fertilization, which promotes succulent growth favored by mealybugs.", "Use a strong jet of water to dislodge small, early infestations."], "biological": ["Introduce or conserve natural enemies like the lady beetle (Cryptolaemus montrouzieri) or parasitic wasps (e.g., Acerophagus papayae)."], "chemical": ["Apply horticultural oils or insecticidal soaps, ensuring thorough coverage of colonies.", "For severe infestations, consider systemic insecticides, following local regulations and pre-harvest intervals."], "notes": "An Integrated Pest Management (IPM) approach is most effective. Early detection and control of ants are crucial for managing mealybugs."}, "qa_seeds": {"verification_templates": ["Is there a white, cottony substance on the [plant_part]?", "Are there clusters of small insects visible under a waxy coating?", "Do you see a black, soot-like mold growing on the leaves or fruit?", "Are ants crawling on or near the white masses?", "Does the plant show signs of stunted growth or leaf curling?"], "attribute_templates": ["What color is the substance covering the insects?", "What is the texture of the masses on the stem?", "Where on the plant are the insect colonies located?", "Describe the appearance of the young leaves.", "Is there a sticky residue on the leaves?", "What other insects are present near the white colonies?"], "diagnosis_templates": ["Based on the white cottony masses and associated sooty mold, what pest is affecting this papaya?", "The plant has stunted growth, yellowing leaves, and ants tending white insects. What is the likely cause?", "What pest produces honeydew that leads to sooty mold on papaya?"], "counterfactual_templates": ["If this were spider mite damage, what would you expect to see instead of cottony masses?", "If the black spots on the fruit were anthracnose, what would they look like?"], "severity_templates": ["How would you describe the severity of this mealybug infestation: mild, moderate, or severe?", "Are there just a few small colonies, or are there heavy encrustations covering the plant?", "Based on the widespread sooty mold and stunted growth, what is the severity level?"], "confounders": ["spider_mites", "anthracnose"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.2, "lighting_notes": "Bright, diffuse light is best. Avoid harsh shadows that can obscure the white, waxy texture of the colonies.", "occlusion_notes": "Ensure the affected area (e.g., leaf axil, fruit stem) is not obscured by other leaves. Close-up shots of the colonies are highly valuable for identification."}, "provenance": {"created_by": "VQA Dataset Designer (Plant Pathology Expert)", "reviewed_by": "VQA Dataset Designer (Plant Pathology Expert)", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University extension guides on tropical fruit pests", "CABI Invasive Species Compendium", "APS Compendium of Tropical Fruit Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "papaya.disease_viral.mosaic_virus", "aliases": ["PMV", "PapMV"], "crop": {"common_name": "papaya", "scientific_name": "Carica papaya", "family": "Caricaceae"}, "condition": {"common_name": "mosaic virus", "scientific_name": "Papaya mosaic virus", "alt_names": ["PMV"], "pathogen": {"type": "virus", "taxonomy": {"kingdom": "Orthornavirae", "phylum": "Kitrinoviricota", "class": "Alsuviricetes", "order": "Martellivirales", "family": "Potexviridae", "genus": "Potexvirus", "species": "Papaya mosaic virus"}}}, "issue_type": "disease_viral", "transmission": {"vectors": [], "dispersal": ["Mechanical transmission via contaminated tools (knives, pruning shears)", "Contact between infected and healthy plants", "Infected sap on hands or clothing"], "overwintering": ["Infected perennial papaya plants", "Alternative host plants"]}, "environmental_risk": {"risk_factors": ["High plant density facilitating leaf-to-leaf contact", "Pruning or harvesting activities without tool sanitation", "Presence of infected papaya plants nearby"], "temp_c_day": [], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Faint mosaic or mottling on a few young leaves; no significant stunting.", "moderate": "Clear mosaic, mottling, and possible leaf distortion on multiple leaves; slight stunting of the plant may be visible.", "severe": "Pronounced mosaic, severe leaf distortion, and blistering on most leaves; significant plant stunting and reduced fruit production.", "notes": "Severity is assessed based on the extent and intensity of foliar symptoms and overall impact on plant growth, as quantifying percentage area for mosaic patterns is unreliable."}, "symptoms": {"leaves": ["Light and dark green patches forming a mosaic or mottle pattern, especially on young leaves.", "Vein-clearing or vein-banding on newly emerged leaves.", "Leaves may appear slightly distorted but not severely malformed or fern-like.", "No oily streaks are present on the petioles."], "stems": ["No distinct symptoms are typically observed on the main stem or petioles."], "fruit": ["Fruit may be smaller than normal.", "No characteristic ringspots appear on the fruit.", "Overall fruit yield is often reduced."], "roots": ["No external symptoms."], "whole_plant": ["Mild to moderate stunting of the plant.", "General reduction in plant vigor."], "signs_microscopic_or_visible": ["None visible to the naked eye; requires laboratory testing (e.g., ELISA) for confirmation."]}, "lookalikes": [{"condition_name": "ringspot virus", "condition_id": "papaya.disease_viral.ringspot_virus", "key_differences": ["Ringspot virus causes distinct oily streaks on petioles and the upper trunk; mosaic virus does not.", "Ringspot virus produces characteristic concentric rings on the fruit; mosaic virus does not.", "Leaf symptoms in ringspot virus are often more severe, with shoestringing or fern-leaf appearance.", "Ringspot virus is aphid-transmitted, while mosaic virus is mechanically transmitted."]}, {"condition_name": "leaf curl virus", "condition_id": "papaya.disease_viral.leaf_curl_virus", "key_differences": ["Leaf curl causes severe upward/downward curling and crinkling of leaf margins into a cup shape; mosaic causes a flat color pattern.", "Veins in leaf curl appear thickened and prominent; mosaic virus causes vein clearing or banding.", "Leaf curl results in leathery, brittle leaves; mosaic leaves retain a more normal texture."]}, {"condition_name": "spider mites", "condition_id": "papaya.pest.spider_mites", "key_differences": ["Mite damage appears as fine, yellowish stippling or bronzing, not a large-scale mosaic pattern of green shades.", "Fine webbing is often visible on the underside of leaves with spider mites.", "Mite damage often starts on older, lower leaves; mosaic symptoms are most prominent on young, developing leaves."]}], "management": {"cultural": ["Use certified virus-free planting material.", "Sanitize tools (knives, pruners) with a disinfectant like 10% bleach solution between each plant.", "Remove and destroy infected plants (roguing) immediately upon detection to reduce the inoculum source.", "Minimize mechanical damage to plants during field operations."], "biological": ["No effective biological control agents are available for the virus itself."], "chemical": ["No chemical treatments (virucides) are effective against plant viruses."], "notes": "Management focuses entirely on prevention (phytosanitation) as there is no cure for an infected plant."}, "qa_seeds": {"verification_templates": ["Is there a mosaic pattern of light and dark green on the leaves?", "Can you see mottling on the young papaya leaves?", "Are the leaf veins showing signs of clearing or banding?", "Does the plant appear stunted compared to healthy ones?", "Are there any symptoms on the petioles or fruit?"], "attribute_templates": ["What color are the patches on the leaf?", "How are the leaf veins affected?", "Describe the overall shape of the affected leaves.", "Are there any oily streaks on the petioles?", "Are there any rings on the fruit?"], "diagnosis_templates": ["Based on the mottling and lack of ringspots on the fruit, what is wrong with this papaya?", "What viral disease causes a mosaic pattern but no oily streaks on the stem?", "Is this papaya infected with mosaic virus?"], "counterfactual_templates": ["What would this leaf look like if it had ringspot virus instead?", "If this were leaf curl virus, how would the leaf shape be different?"], "severity_templates": ["How severe is the mosaic virus infection on this plant?", "Is the mosaic pattern faint or pronounced?", "Would you classify the plant stunting as mild, moderate, or severe?"], "confounders": ["papaya.disease_viral.ringspot_virus", "papaya.disease_viral.leaf_curl_virus", "papaya.pest.spider_mites"]}, "data_requirements": {"min_resolution_px": 768, "min_roi_fraction": 0.3, "lighting_notes": "Diffuse, even lighting is best. Avoid harsh shadows or direct sunlight that can obscure the subtle color variations of the mosaic pattern.", "occlusion_notes": "The key symptoms are on young leaves at the top of the plant; ensure these are not obscured by older leaves, other plants, or hands."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2024-05-21T10:00:00Z", "updated_at": "2024-05-21T10:00:00Z", "sources": ["General university extension guides for tropical fruit pathology", "APS Compendium of Tropical Fruit Diseases", "CABI Invasive Species Compendium"]}}
+{"schema_version": "1.0.0", "disease_id": "papaya.disease_viral.ringspot_virus", "aliases": ["PRSV", "Papaya ringspot"], "crop": {"common_name": "papaya", "scientific_name": "Carica papaya", "family": "Caricaceae"}, "condition": {"common_name": "ringspot virus", "scientific_name": "Papaya ringspot virus", "alt_names": ["PRSV"], "pathogen": {"type": "virus", "taxonomy": {"kingdom": "Orthornavirae", "phylum": "Pisuviricota", "class": "Stelpaviricetes", "order": "Patatavirales", "family": "Potyviridae", "genus": "Potyvirus", "species": "Papaya ringspot virus"}}}, "issue_type": "disease_viral", "transmission": {"vectors": ["aphids (e.g., Myzus persicae, Aphis gossypii)"], "dispersal": ["Insect vectors (aphids) in a non-persistent manner", "Mechanical transmission via contaminated tools or human activity"], "overwintering": ["Infected perennial papaya plants", "Infected alternative weed and crop hosts (e.g., cucurbits)"]}, "environmental_risk": {"risk_factors": ["High aphid populations", "Proximity to infected papaya orchards or cucurbit fields", "Warm, dry conditions that favor aphid flight and dispersal"], "temp_c_day": [20, 30], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Faint yellow mosaic or mottling on a few young leaves. No significant stunting or fruit symptoms.", "moderate": "Distinct mosaic, leaf yellowing, and some leaf distortion (fern-leaf). Plant shows some stunting. Fruit may show faint rings.", "severe": "Severe mosaic, prominent 'fern-leaf' symptoms or shoestringing of leaves. Significant plant stunting, and distinctive, dark ringspots on fruit and oily streaks on stems.", "notes": "Severity is based on the systemic progression of symptoms. It is most accurately judged by observing the youngest leaves for mosaic and mature fruit for ringspots. A value of 0 for leaf wetness indicates it is not a primary driver for this viral disease."}, "symptoms": {"leaves": ["Yellow mosaic or mottling patterns, especially on young, expanding leaves.", "Initial symptoms include vein-clearing on young leaves.", "Leaf lamina is distorted, creating a 'fern-leaf' appearance.", "Overall leaf size is significantly reduced.", "In severe cases, leaf lobes are reduced to narrow, strap-like structures ('shoestringing')."], "stems": ["Dark green, oily or water-soaked streaks appear on petioles and the upper part of the trunk.", "Internode length is shortened, contributing to a stunted appearance."], "fruit": ["Distinctive concentric rings or C-shaped markings develop on the fruit surface.", "Ringspots are typically dark green on green fruit and turn yellow or brown as the fruit ripens.", "Fruit size and quality are reduced, and flavor can be insipid.", "Fruit surface may be bumpy or deformed."], "roots": [], "whole_plant": ["Noticeable stunting, especially if infection occurs at a young stage.", "The plant canopy becomes sparse and reduced in size.", "Yield is severely reduced or completely eliminated."], "signs_microscopic_or_visible": ["No visible signs of the pathogen itself (e.g., fungal growth, spores, bacterial ooze)."]}, "lookalikes": [{"condition_name": "mosaic virus", "condition_id": "papaya.disease_viral.mosaic_virus", "key_differences": ["Ringspot virus (PRSV) causes distinctive rings on the fruit, which are absent in Papaya Mosaic Virus (PapMV) infections.", "PRSV typically causes more severe leaf distortion ('fern-leaf' or 'shoestringing') compared to the milder mosaic of PapMV.", "The oily, water-soaked streaks on stems and petioles are characteristic of PRSV, not PapMV."]}, {"condition_name": "leaf curl virus", "condition_id": "papaya.disease_viral.leaf_curl_virus", "key_differences": ["Leaf curl causes severe upward or downward curling of the entire leaf blade, creating a cup shape, whereas ringspot causes a mosaic pattern and lamina reduction.", "In leaf curl, veins become thickened and often remain green, while ringspot causes vein-clearing or mosaic patterns across the veins.", "Ringspot virus causes rings on the fruit, a symptom not associated with leaf curl virus."]}, {"condition_name": "spider_mites", "condition_id": "papaya.pest.spider_mites", "key_differences": ["Spider mite damage appears as fine, yellow or whitish stippling on the leaf surface, not a broad mosaic or mottled pattern.", "Fine webbing is often present on the underside of leaves infested with spider mites, which is absent in viral infections.", "The cause of spider mite damage (tiny, moving mites) may be visible with magnification on the leaf underside.", "PRSV symptoms are systemic and most prominent on new growth, while spider mite damage can be localized on older leaves initially."]}], "management": {"cultural": ["Use certified virus-free seedlings for planting.", "Immediately remove and destroy (rogue) any infected plants to reduce the source of inoculum.", "Maintain a weed-free orchard, as many weeds can host the virus and its aphid vectors.", "Planting of resistant or genetically modified (GM) tolerant cultivars where available and permitted."], "biological": ["Conserve and encourage natural predators of aphids, such as lady beetles, lacewings, and hoverflies."], "chemical": ["Application of insecticides to manage aphid vector populations, though this may have limited success due to the rapid transmission time.", "Spraying horticultural or mineral oils can interfere with aphid feeding and reduce virus transmission."], "notes": "Once a plant is infected with PRSV, it cannot be cured. Management focuses entirely on preventing infection by controlling aphid vectors and removing infected plants."}, "qa_seeds": {"verification_templates": ["Are there concentric rings or C-shaped marks on the papaya fruit?", "Does this leaf exhibit a yellow and green mosaic pattern?", "Can you see dark green, oily-looking streaks on the stem or leaf petiole?", "Are the leaves malformed into a 'fern-leaf' or 'shoestring' shape?", "Is the overall plant stunted with a reduced canopy?"], "attribute_templates": ["What is the pattern of discoloration on the youngest leaves?", "Describe the shape of the markings on the fruit's skin.", "What symptoms are present on the stem?", "How would you describe the shape of the most distorted leaves?", "What color are the rings on this green fruit?"], "diagnosis_templates": ["Given the rings on the fruit and the mosaic on the leaves, what disease is affecting this papaya?", "What virus causes shoestringing of leaves and oily streaks on papaya stems?", "Is this papaya plant infected with ringspot virus?"], "counterfactual_templates": ["If the leaves were severely curled into a cup but had no mosaic pattern, what other viral disease could it be?", "What would you expect to find on the underside of the leaf if this yellowing was caused by spider mites instead of a virus?", "If the plant had a leaf mosaic but no rings on the fruit, what other virus might be the cause?"], "severity_templates": ["Based on the prominent fern-leaf symptoms and stunted growth, would you classify this ringspot virus infection as mild, moderate, or severe?", "How severe is the ringspot virus infection on this plant?", "Is this a mild infection, showing only faint mottling on new leaves?"], "confounders": ["papaya.disease_viral.mosaic_virus", "papaya.disease_viral.leaf_curl_virus", "papaya.pest.spider_mites"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Use diffuse, even lighting. Avoid harsh midday sun or deep shadows which can obscure subtle mosaic patterns and oily streaks.", "occlusion_notes": "Ensure the primary symptomatic area (e.g., young leaf, whole fruit) is in focus and not obscured by other plant parts or background objects."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2024-05-22T10:00:00Z", "updated_at": "2024-05-22T10:00:00Z", "sources": ["APS Compendium of Tropical Fruit Diseases", "CABI Invasive Species Compendium", "General university extension plant pathology guides"]}}
+{"schema_version": "1.0.0", "disease_id": "papaya.pest_mite.spider_mites", "aliases": ["Red spider mite on papaya", "Two-spotted spider mite on papaya"], "crop": {"common_name": "Papaya", "scientific_name": "Carica papaya", "family": "Caricaceae"}, "condition": {"common_name": "Spider Mites", "scientific_name": "Tetranychus spp.", "alt_names": ["Red spider mite", "Two-spotted spider mite"], "pathogen": {"type": "Arachnid", "taxonomy": {"kingdom": "Animalia", "phylum": "Arthropoda", "class": "Arachnida", "order": "Trombidiformes", "family": "Tetranychidae", "genus": "Tetranychus", "species": ""}}}, "issue_type": "pest_mite", "transmission": {"vectors": ["Wind", "Humans (on clothing/equipment)", "Contaminated plant material"], "dispersal": ["Mites crawl between adjacent leaves and plants.", "Wind currents carry mites over longer distances.", "Movement of infested nursery stock or equipment."], "overwintering": ["Adult female mites overwinter in plant debris, bark crevices, or on weed hosts in and around cultivation areas."]}, "environmental_risk": {"risk_factors": ["Hot, dry, and dusty conditions", "Low relative humidity", "Water-stressed plants", "Overuse of broad-spectrum insecticides that kill natural predators"], "temp_c_day": [25, 37], "temp_c_night": [], "relative_humidity_pct": [20, 50], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area affected. Light stippling is visible on upper surfaces. Webbing is absent or very sparse and difficult to see.", "moderate": "11-40% of leaf area affected. Stippling is dense, causing leaves to appear pale or yellowish. Fine webbing is clearly visible on leaf undersides and between petioles.", "severe": ">40% of leaf area affected. Leaves are bronzed, brown, or desiccated. Dense webbing covers leaves, stems, and may enclose entire leaf clusters. Premature leaf drop is common.", "notes": "Assessment is based on the total foliar surface area showing symptoms (stippling, discoloration, webbing). This can be estimated on a representative sample of leaves from the plant."}, "symptoms": {"leaves": ["Fine, pale yellow or white stippling (tiny dots) on the upper leaf surface from feeding.", "Leaf undersides appear dusty or sandy due to the presence of mites, eggs, and shed skins.", "As damage progresses, leaves turn yellow, bronze, grey, or brown.", "Fine, silk-like webbing is visible, typically starting on the leaf underside and near the petiole.", "Leaf margins may curl downwards or upwards.", "In severe cases, leaves become brittle, dry up, and drop prematurely."], "stems": ["Webbing can extend from leaves to cover petioles and young stems in heavy infestations."], "fruit": ["Mite feeding on the fruit surface can cause scarring, russeting, or a bronze discoloration.", "Webbing may cover parts of the fruit in severe outbreaks."], "roots": [], "whole_plant": ["Reduced plant vigor and stunted growth.", "Significant defoliation under high mite pressure."], "signs_microscopic_or_visible": ["Tiny, moving specks (mites), often reddish or yellowish, visible on leaf undersides (a hand lens helps).", "Minute, spherical, translucent eggs, often found along the midrib or within webbing.", "Fine silk webbing is a definitive sign of spider mites."]}, "lookalikes": [{"condition_name": "Mealybug", "condition_id": "papaya.pest_insect.mealybug", "key_differences": ["Mealybugs are larger, visible insects covered in a white, waxy, cotton-like material, while spider mites are tiny arachnids appearing as moving dots.", "Spider mites produce fine silk webbing, whereas mealybugs create clumpy, cottony masses and do not produce webbing.", "Mealybugs excrete sticky honeydew, which can lead to sooty mold growth, a sign not directly associated with spider mites."]}], "management": {"cultural": ["Spray plants with a strong jet of water to physically dislodge mites and break up webbing.", "Maintain adequate irrigation to prevent water stress, which makes plants more susceptible.", "Control dust on and around plants, as dusty conditions favor mite outbreaks.", "Prune and destroy heavily infested leaves or plant parts to reduce mite populations."], "biological": ["Conserve and encourage natural predators such as predatory mites (e.g., Phytoseiulus persimilis), lady beetles, lacewing larvae, and minute pirate bugs.", "Avoid using broad-spectrum pesticides that harm beneficial insects."], "chemical": ["Apply horticultural oils or insecticidal soaps, ensuring thorough coverage of all plant surfaces, especially leaf undersides.", "Use selective miticides (acaricides) for severe infestations, rotating chemical groups to manage resistance."], "notes": "Regularly monitor the undersides of lower, older leaves for early signs of infestation, particularly during warm, dry periods."}, "qa_seeds": {"verification_templates": ["Is there fine, silk-like webbing visible on the papaya leaf?", "Does the upper surface of the leaf show signs of fine, pale stippling?", "Does the leaf underside appear dusty or have tiny moving specks?", "Is the leaf turning a bronze or grayish color?", "Are there signs of a spider mite infestation on this plant?", "Can you confirm the presence of tiny dots and webbing on the leaf?"], "attribute_templates": ["What is the primary symptom visible on the top of the leaf?", "Where on the plant is the webbing most concentrated?", "What color are the damaged areas of the leaf?", "How would you describe the texture of the leaf underside?", "Are individual mites or their eggs visible in the image?", "What is the overall color of the most affected leaves?"], "diagnosis_templates": ["What pest is causing the fine stippling and webbing on this papaya leaf?", "Based on the bronzing and dusty appearance of the leaf underside, what is the likely issue?", "Why are the papaya leaves covered in fine webs and showing tiny yellow dots?"], "counterfactual_templates": ["If this were damage from mealybugs instead of spider mites, what different signs would be present?", "What would the leaf symptoms look like if the yellowing was caused by a nutrient deficiency instead of mites?"], "severity_templates": ["How severe is the spider mite infestation on this leaf?", "Based on the extent of webbing and discoloration, would you rate this as a mild, moderate, or severe infestation?", "What percentage of the leaf surface is covered by stippling and bronzing?"], "confounders": ["Is the discoloration on the leaf due to spider mite feeding or a viral disease like mosaic?", "Is the white substance on the leaf the fine webbing of spider mites or the waxy residue of mealybugs?"]}, "data_requirements": {"min_resolution_px": 1024, "min_roi_fraction": 0.4, "lighting_notes": "Use diffuse, bright, and even lighting. Avoid harsh shadows or overexposure, which can obscure subtle symptoms like stippling and fine webbing.", "occlusion_notes": "The affected leaf surface, particularly the underside, must be clearly visible. The image should be in sharp focus to resolve fine details like mites and webbing."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T11:30:00Z", "updated_at": "2023-10-27T11:30:00Z", "sources": ["University extension pest management guides", "APS Compendium of Tropical Fruit Diseases", "General Acarology and Entomology Textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "peas.disease_fungal.anthracnose", "aliases": ["Pea anthracnose"], "crop": {"common_name": "Pea", "scientific_name": "Pisum sativum", "family": "Fabaceae"}, "condition": {"common_name": "Anthracnose", "scientific_name": "Colletotrichum pisi", "alt_names": ["Leaf and pod spot"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Sordariomycetes", "order": "Glomerellales", "family": "Glomerellaceae", "genus": "Colletotrichum", "species": "pisi"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["Rain splash", "Wind-driven rain", "Contaminated equipment", "Infected seed"], "overwintering": ["Infected crop debris", "Infected seed"]}, "environmental_risk": {"risk_factors": ["High humidity", "Prolonged leaf wetness", "Dense plant canopy", "Poor air circulation", "Moderate to warm temperatures"], "temp_c_day": [20, 27], "temp_c_night": [15, 22], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 12}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf/pod surface area affected; few, scattered lesions.", "moderate": "11-40% of leaf/pod surface area affected; multiple lesions, some coalescing; minor stem girdling.", "severe": ">40% of leaf/pod surface area affected; extensive lesion coalescence leading to blighting, significant stem girdling, and pod decay.", "notes": "Severity is assessed on the most affected plant parts (leaves, stems, pods). Assess the average across several plants in an area."}, "symptoms": {"leaves": ["Small, circular, water-soaked spots that enlarge over time.", "Lesions become tan to dark brown, often with a distinct, dark border.", "Centers of older lesions may become gray and fall out, creating a 'shot-hole' effect.", "Lesions can merge, causing large blighted areas and premature leaf drop."], "stems": ["Elongated, sunken lesions that are initially dark green and turn black.", "Stem lesions can girdle the plant, causing wilting and death of parts above the infection.", "Tiny black fungal structures (acervuli) may become visible in the center of older stem lesions."], "fruit": ["Circular, sunken lesions on pods, often with a water-soaked appearance.", "Pod lesions enlarge, turn dark brown to black, and may have lighter-colored centers.", "In humid conditions, pinkish to orange-colored spore masses may ooze from the center of pod lesions."], "roots": [], "whole_plant": ["Stunted growth and reduced vigor in heavily infected plants.", "General wilting or dieback if main stems are girdled."], "signs_microscopic_or_visible": ["Presence of acervuli (small, black, cushion-like fungal fruiting bodies) in the center of mature lesions.", "Gelatinous, salmon-pink to orange spore masses (conidia) produced from acervuli in moist weather."]}, "lookalikes": [{"condition_name": "Ascochyta blight", "condition_id": "peas.disease_fungal.ascochyta_blight", "key_differences": ["Ascochyta lesions are purplish-black and often have distinct concentric rings, creating a 'target spot' appearance.", "Ascochyta lesions contain tiny black specks (pycnidia) arranged in rings, unlike the acervuli of anthracnose which can produce pink spore masses.", "Ascochyta blight complex often includes a 'foot rot' phase with blackening at the stem base, which is not typical for anthracnose."]}, {"condition_name": "Botrytis blight", "condition_id": "peas.disease_fungal.botrytis_blight", "key_differences": ["Botrytis blight is characterized by a fuzzy, gray-to-brown moldy growth on lesions, especially in high humidity.", "Botrytis lesions are often less defined, appearing as rapidly expanding, soft, water-soaked patches rather than the discrete, sunken spots of anthracnose.", "Botrytis frequently infects blossoms first, leading to pod rot that initiates from the flower end."]}], "management": {"cultural": ["Use certified disease-free seed.", "Practice a crop rotation of at least 2-3 years with non-legume crops.", "Promote air circulation through appropriate plant spacing and weed control.", "Remove and destroy infected crop residue after harvest to reduce inoculum.", "Avoid overhead irrigation to minimize periods of leaf wetness."], "biological": ["Some commercial biofungicides containing *Bacillus subtilis* or *Trichoderma* species may provide suppression when applied preventatively."], "chemical": ["Apply registered foliar fungicides (e.g., strobilurins, triazoles) preventatively, especially when weather conditions are favorable for disease.", "Seed treatment with appropriate fungicides can reduce transmission from infected seed."], "notes": "Consult local agricultural extension services for recommendations on fungicides currently registered for use on peas in your region."}, "qa_seeds": {"verification_templates": ["Is there a sunken, dark-bordered lesion on this pea [plant_part]?", "Does this image show circular, dark spots on the pea pods?", "Can you confirm the presence of elongated, black lesions on the pea stem?", "Is a pink or orange-colored ooze visible in the center of the lesions?", "Is the plant wilting due to a lesion girdling the stem?"], "attribute_templates": ["What is the shape of the lesion on the [plant_part]?", "What color is the lesion?", "How would you describe the texture of the spot's surface?", "Are the spots merging to form larger blighted areas?", "Are there any fungal signs, like tiny black specks or colored spore masses, inside the lesions?", "What plant part is most affected in this image?"], "diagnosis_templates": ["Based on the sunken, dark-bordered lesions on the pods and stems, what is the likely disease?", "The pea plant has circular spots on its leaves and pods, with pinkish spore masses visible. What is the diagnosis?", "What disease causes elongated, sunken lesions that can girdle pea stems?"], "counterfactual_templates": ["If the lesions had a fuzzy gray mold growing on them, would it still be anthracnose?", "If the spots on the leaves had distinct concentric rings like a target, could it be anthracnose?"], "severity_templates": ["What percentage of this leaf's surface is covered by anthracnose lesions?", "How would you rate the severity of anthracnose on this pea pod: mild, moderate, or severe?", "Is the anthracnose infection severe enough to cause stem girdling?"], "confounders": ["ascochyta_blight", "botrytis_blight", "pod_borer_damage"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Even, diffuse lighting is preferred. Avoid harsh shadows or direct sunlight that can obscure lesion details like color, texture, and the presence of fungal signs.", "occlusion_notes": "The primary symptoms (lesions on leaves, stems, or pods) should be clearly visible and not significantly obscured by other plant parts or debris."}, "provenance": {"created_by": "VQA Dataset Designer (Expert Plant Pathologist)", "reviewed_by": "VQA Dataset Designer (Expert Plant Pathologist)", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University extension guides for pulse crops", "APS Compendium of Pea Diseases and Pests", "General plant pathology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "peas.disease_fungal.ascochyta_blight", "aliases": ["ascochyta blight complex", "mycosphaerella blight", "black spot", "ascochyta foot rot"], "crop": {"common_name": "peas", "scientific_name": "Pisum sativum", "family": "Fabaceae"}, "condition": {"common_name": "ascochyta blight", "scientific_name": "Ascochyta pisi, Mycosphaerella pinodes, Phoma medicaginis var. pinodella", "alt_names": ["Mycosphaerella blight", "Ascochyta foot rot"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Pleosporales", "family": "Didymellaceae", "genus": "Ascochyta", "species": ""}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["rain_splash", "wind_driven_rain", "infected_seed", "contaminated_equipment"], "overwintering": ["infected_crop_debris", "infected_seed", "volunteer_pea_plants"]}, "environmental_risk": {"risk_factors": ["cool_to_moderate_temperatures", "high_humidity", "prolonged_leaf_wetness", "dense_canopy", "planting_infected_seed"], "temp_c_day": [15, 25], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 4}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf, stem, or pod area affected. Lesions are few and scattered.", "moderate": "11-40% of area affected. Lesions are numerous, some may be coalescing. Minor stem girdling or pod distortion is visible.", "severe": ">40% of area affected. Widespread lesion coalescence, significant stem girdling ('foot rot'), severe defoliation, and extensive pod spotting leading to seed infection.", "notes": "Severity is assessed as the percentage of total photosynthetic or marketable (pod) area covered by lesions. The presence of foot rot (lesions at the stem base) is a key indicator of severe disease, as it can kill the plant."}, "symptoms": {"leaves": ["Small, circular, tan to purplish-brown spots, often 1-10 mm in diameter.", "Lesions frequently have a distinct, darker brown or purplish border.", "Tiny, black specks (pycnidia) are visible within the center of older, tan-colored lesions.", "Lesions may merge (coalesce), causing large blighted areas and leaf death."], "stems": ["Elongated, sunken, purplish-black lesions, especially near the soil line, causing 'foot rot'.", "Stem lesions can girdle the plant, causing it to wilt, lodge (fall over), or die.", "Pycnidia may be present in stem lesions."], "fruit": ["Circular, sunken, tan-to-dark-brown lesions appear on pods.", "Pod lesions often have a well-defined dark margin.", "Severe pod infection causes the fungus to grow through to the seeds, resulting in discoloration and shriveling."], "roots": ["Dark brown to black discoloration on the upper taproot, extending from the stem base foot rot."], "whole_plant": ["Stunted growth and premature yellowing (senescence), particularly when foot rot is severe."], "signs_microscopic_or_visible": ["Presence of small, black, flask-shaped fruiting bodies (pycnidia) embedded in the center of necrotic lesions."]}, "lookalikes": [{"condition_name": "downy mildew", "condition_id": "peas.disease_oomycete.downy_mildew", "key_differences": ["Downy mildew produces fluffy, grey-to-purplish mold on the underside of leaves; ascochyta blight does not.", "Downy mildew lesions are often angular and limited by veins, appearing yellowish on the upper leaf surface, while ascochyta lesions are circular with distinct borders.", "Ascochyta blight features tiny black pycnidia in lesion centers, which are absent in downy mildew."]}, {"condition_name": "anthracnose", "condition_id": "peas.disease_fungal.anthracnose", "key_differences": ["Anthracnose lesions are typically darker (dark brown to black) and more sunken than the tan-centered ascochyta lesions.", "In wet conditions, anthracnose lesions may show acervuli that ooze pinkish spore masses, whereas ascochyta lesions have embedded black pycnidia.", "Ascochyta blight is more commonly associated with a distinct 'foot rot' at the stem base."]}, {"condition_name": "botrytis blight", "condition_id": "peas.disease_fungal.botrytis_blight", "key_differences": ["Botrytis blight is characterized by a fuzzy, gray-to-brown mold growth (mycelium) on affected tissues, which is absent in ascochyta blight.", "Botrytis lesions are often watery and soft, causing a rapid rot, while ascochyta lesions are more dry, defined, and 'papery' in the center.", "Ascochyta has embedded black pycnidia; botrytis has superficial fuzzy mold and may form hard, black sclerotia in advanced stages."]}], "management": {"cultural": ["Use certified, disease-free seed.", "Implement crop rotation with non-host crops (e.g., cereals) for at least 3 years.", "Bury or remove infected crop debris after harvest to reduce inoculum.", "Select resistant or tolerant pea varieties when available.", "Promote air circulation through appropriate plant spacing and weed control."], "biological": ["Some microbial seed treatments have shown suppressive activity against seed-borne pathogens."], "chemical": ["Treat seed with a registered fungicide to control seed-borne inoculum.", "Apply registered foliar fungicides at the first sign of disease or preventatively if conditions are favorable, especially during flowering."], "notes": "An integrated pest management (IPM) approach is crucial. Scouting for early symptoms, especially during cool and wet weather, allows for timely intervention."}, "qa_seeds": {"verification_templates": ["Is a pea plant visible in the image?", "Are there spots or lesions on the [leaves|stems|pods]?", "Does the plant appear diseased?", "Is the plant in a field, greenhouse, or garden setting?", "Are the leaves mostly green or are they yellowing and dying back?"], "attribute_templates": ["What is the shape of the spots on the leaves?", "What color are the lesions on the pods?", "Do the spots on the leaves have a distinct, darker border?", "Can you see any tiny black specks in the center of the tan spots?", "Are the lesions on the stem near the soil line?", "Is there any fuzzy or fluffy growth on the lesions?", "Are the lesions on the pods sunken or raised?"], "diagnosis_templates": ["Based on the circular, tan spots with dark borders and black pycnidia, what disease affects this pea plant?", "What is the likely cause of the purplish-black, sunken lesions at the base of the pea stem?", "Is this pea plant infected with ascochyta blight?"], "counterfactual_templates": ["If the spots had a fuzzy gray mold on them, what disease would it be instead of ascochyta blight?", "If the lesions on the leaf underside were covered in a purplish, downy growth, what condition would it be?"], "severity_templates": ["What percentage of the leaf area is covered by ascochyta blight lesions?", "How would you rate the severity of ascochyta blight in this image: [mild, moderate, or severe]?", "Are the stem lesions causing the plant to wilt or fall over, indicating a severe infection?"], "confounders": ["downy_mildew", "anthracnose", "botrytis_blight"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse lighting is preferred. Avoid harsh shadows or overexposure that can obscure lesion details like pycnidia or borders.", "occlusion_notes": "The primary symptoms (lesions on leaves, stems, or pods) should be clearly visible and not significantly obscured by other leaves, debris, or out-of-focus elements."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2024-05-21T10:00:00Z", "updated_at": "2024-05-21T10:00:00Z", "sources": ["University extension guides for pulse crops", "APS Compendium of Pea Diseases and Pests", "General plant pathology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "peas.disease_fungal.botrytis_blight", "aliases": ["Gray mold of pea", "Grey mould of pea"], "crop": {"common_name": "Pea", "scientific_name": "Pisum sativum", "family": "Fabaceae"}, "condition": {"common_name": "Botrytis blight", "scientific_name": "Botrytis cinerea", "alt_names": ["Gray mold", "Grey mould"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Leotiomycetes", "order": "Helotiales", "family": "Sclerotiniaceae", "genus": "Botrytis", "species": "cinerea"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["Wind-borne conidia", "Water splash", "Contaminated tools", "Infected seed"], "overwintering": ["Sclerotia in soil", "Mycelia on infected plant debris", "Infected seed"]}, "environmental_risk": {"risk_factors": ["High relative humidity (>90%)", "Prolonged leaf wetness", "Cool to moderate temperatures", "Poor air circulation within the plant canopy", "Dense plantings", "Presence of senescing tissues, especially flowers"], "temp_c_day": [15, 23], "temp_c_night": [10, 18], "relative_humidity_pct": [90, 100], "leaf_wetness_hours_threshold": 8}, "severity_rubric": {"unit": "qualitative", "mild": "A few isolated, small lesions on leaves or stems; no significant pod infection; less than 5% of plant canopy affected.", "moderate": "Multiple lesions, some coalescing on leaves and stems; initial water-soaking or early mold growth on some pods; 5-25% of plant canopy affected.", "severe": "Extensive blighting of leaves, stems, and pods; dense, fuzzy gray mold is widespread; significant plant collapse or extensive pod rot; >25% of plant canopy affected.", "notes": "Severity is assessed based on the overall percentage of the plant showing symptoms, with a focus on the presence and density of the characteristic gray sporulation, especially on pods and stems."}, "symptoms": {"leaves": ["Water-soaked, grayish-green spots, often starting at leaf margins or where blossoms have fallen.", "Lesions enlarge rapidly, becoming tan to brown with a soft, rotted texture.", "Infected leaves wilt, collapse, and become covered in mold.", "A fuzzy, gray to brownish mold (sporulation) develops on lesions in humid conditions."], "stems": ["Water-soaked, light brown to tan lesions that can girdle the stem.", "Infected stem areas become soft and may cause the upper portion of the plant to wilt and die.", "Gray mold growth is visible on infected stem areas."], "fruit": ["Water-soaked spots appear on pods, often starting at the blossom end.", "Pods become soft, rot completely, and are covered in fuzzy gray mold.", "Infected pods may contain shriveled, discolored, or moldy seeds."], "roots": [], "whole_plant": ["Blighting of flowers is a common initial symptom, which then spreads to adjacent tissues.", "Wilting or collapse of entire branches if the main stem is girdled."], "signs_microscopic_or_visible": ["Visible fuzzy, gray to brownish mold (mycelia and conidiophores) on affected tissues.", "Small, black, hard, irregular resting bodies (sclerotia) may form on or in dead tissue late in the season."]}, "lookalikes": [{"condition_name": "Ascochyta blight", "condition_id": "peas.disease_fungal.ascochyta_blight", "key_differences": ["Ascochyta lesions are typically circular, sunken, tan to purplish-brown, and have a distinct dark border, unlike the soft, undefined rot of Botrytis.", "Ascochyta lesions contain tiny black specks (pycnidia), often in a concentric ring pattern, which are absent in Botrytis lesions.", "Botrytis produces a profuse, fuzzy gray mold, whereas Ascochyta does not produce visible mold.", "Ascochyta stem lesions are typically purplish-black and sunken, not the soft tan rot seen with Botrytis."]}, {"condition_name": "Downy mildew", "condition_id": "peas.disease_oomycete.downy_mildew", "key_differences": ["Downy mildew produces a fine, purplish-gray fuzz on the *underside* of leaves, while Botrytis mold is coarser, gray-brown, and can be on any plant part.", "Downy mildew causes distinct yellow, angular blotches on the upper leaf surface, corresponding to the fuzz below.", "Botrytis causes a rapidly expanding, water-soaked rot without the angular leaf spots characteristic of downy mildew."]}], "management": {"cultural": ["Increase plant spacing and orient rows with prevailing winds to promote air circulation.", "Avoid overhead irrigation; use drip irrigation to keep foliage dry.", "Practice crop rotation with non-host crops (e.g., cereals) for at least 2-3 years.", "Remove and destroy infected plant debris after harvest to reduce overwintering inoculum.", "Control weeds to improve airflow and reduce humidity within the canopy."], "biological": ["Application of registered bio-fungicides containing beneficial microbes like *Bacillus subtilis* or *Trichoderma harzianum*."], "chemical": ["Preventative application of fungicides (e.g., boscalid, pyraclostrobin, fenhexamid) during high-risk periods like flowering and early pod development.", "Rotate fungicide modes of action to prevent the development of pathogen resistance."], "notes": "Integrated management combining cultural practices to create an unfavorable environment for the pathogen with timely fungicide applications is the most effective strategy."}, "qa_seeds": {"verification_templates": ["Is there fuzzy gray mold on the [plant_part]?", "Does this pea plant show symptoms of botrytis blight?", "Can you confirm the presence of a fuzzy, gray fungal growth?", "Are the pods developing water-soaked spots that turn into a gray, fuzzy mass?", "Is this gray mold?"], "attribute_templates": ["What color is the mold on the [plant_part]?", "Describe the texture of the lesions on the leaves.", "Are the stems soft and rotting or dry and brittle?", "Is the fuzzy growth located on the top or underside of the leaf?", "Are there any small black specks inside the leaf spots?", "What part of the plant appears most affected?"], "diagnosis_templates": ["What disease causes fuzzy gray mold and soft rot on pea pods, especially in cool, wet weather?", "My pea flowers are rotting and now a gray, fuzzy growth is spreading to the stems. What is the problem?", "What is causing these soft, tan, moldy spots on my pea stems?"], "counterfactual_templates": ["What would this look like if it were ascochyta blight instead?", "If the mold on the stem was white and cottony, what disease would it be?", "How would the symptoms on the leaves be different if this were downy mildew?"], "severity_templates": ["How severe is this botrytis blight infection?", "Based on the amount of gray mold, would you classify this as mild, moderate, or severe?", "What percentage of the pods are showing signs of rot?"], "confounders": ["ascochyta_blight", "downy_mildew", "stem_rot"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.2, "lighting_notes": "Even, diffuse lighting is critical. Avoid harsh shadows or direct sunlight, which can wash out colors and obscure the texture of the mold.", "occlusion_notes": "Ensure the primary symptomatic area (e.g., mold on a stem or pod) is in focus and not obscured by healthy leaves. Close-up shots of lesions are highly valuable."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Plant Pathologist", "created_at": "2024-05-21T11:00:00Z", "updated_at": "2024-05-21T11:00:00Z", "sources": ["University extension pest management guides for pulse crops", "APS Compendium of Pea Diseases and Pests", "General plant pathology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "peas.disease_fungal.downy_mildew", "aliases": ["pea downy mildew"], "crop": {"common_name": "Peas", "scientific_name": "Pisum sativum", "family": "Fabaceae"}, "condition": {"common_name": "Downy mildew", "scientific_name": "Peronospora viciae f. sp. pisi", "alt_names": [], "pathogen": {"type": "disease_oomycete", "taxonomy": {"kingdom": "Stramenopila", "phylum": "Oomycota", "class": "Oomycetes", "order": "Peronosporales", "family": "Peronosporaceae", "genus": "Peronospora", "species": "viciae"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["windborne sporangia", "rain splash", "contaminated seed"], "overwintering": ["oospores in soil", "infected crop debris", "systemically infected volunteer plants", "on seed"]}, "environmental_risk": {"risk_factors": ["cool temperatures", "high humidity", "prolonged leaf wetness", "dense plant canopies", "poor air circulation"], "temp_c_day": [10, 18], "temp_c_night": [4, 10], "relative_humidity_pct": [90, 100], "leaf_wetness_hours_threshold": 4}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of total leaf area affected with lesions; a few scattered lesions on lower leaves.", "moderate": "11-40% of leaf area affected; multiple lesions on lower and mid-canopy leaves; some leaf yellowing and minor defoliation.", "severe": ">40% of leaf area affected; extensive lesions throughout the canopy, significant defoliation, and visible infection on stems and pods.", "notes": "Severity is estimated as the percentage of the total photosynthetic area of the plant showing symptoms (chlorosis, necrosis, and visible sporulation)."}, "symptoms": {"leaves": ["Irregular, pale green to yellowish blotches appear on the upper leaf surface.", "Lesions are often limited by leaf veins, giving them an angular shape.", "A downy, grayish-purple mold grows on the underside (abaxial surface) of leaves, corresponding to the upper surface blotches.", "Infected leaves may curl, turn necrotic, and fall off prematurely.", "Systemic infection in seedlings can cause a grayish discoloration and stunting."], "stems": ["Systemic infections can cause stunting and discoloration of the entire stem.", "Lesions are less common but can appear as elongated, water-soaked areas with sporulation under high humidity."], "fruit": ["Pods can develop large, water-soaked, or brownish lesions.", "The characteristic grayish-purple mold may grow on infected pods, especially in humid conditions.", "Infected pods may become distorted or contain shriveled, undeveloped seeds."], "roots": [], "whole_plant": ["Stunting and general yellowing (chlorosis), particularly from early, systemic infection.", "Reduced plant vigor and overall yield."], "signs_microscopic_or_visible": ["Visible grayish-purple, fuzzy or downy growth on the abaxial (lower) leaf surfaces and other infected parts.", "Microscopic view reveals dichotomously branched sporangiophores bearing lemon-shaped sporangia."]}, "lookalikes": [{"condition_name": "Powdery mildew", "condition_id": "peas.disease_fungal.powdery_mildew", "key_differences": ["Powdery mildew produces a white, powdery growth primarily on the upper leaf surface, while downy mildew's growth is grayish-purple and on the lower surface.", "Downy mildew causes distinct yellow, angular lesions on the upper leaf surface; powdery mildew covers the leaf in a more uniform white fungal mat.", "Downy mildew thrives in cool, moist conditions, while powdery mildew often prefers warmer, drier conditions with high ambient humidity."]}, {"condition_name": "Ascochyta blight", "condition_id": "peas.disease_fungal.ascochyta_blight", "key_differences": ["Ascochyta lesions are circular to oval, tan to dark brown, and often have a 'target-like' appearance with tiny black dots (pycnidia) in the center.", "Downy mildew lacks pycnidia and has angular, yellowish lesions on the upper surface.", "Downy mildew produces a fuzzy mold on the leaf underside; Ascochyta does not."]}, {"condition_name": "Botrytis blight", "condition_id": "peas.disease_fungal.botrytis_blight", "key_differences": ["Botrytis produces a dense, fuzzy, gray-to-brown mold, often on flowers and pods, not typically confined to the underside of distinct leaf lesions.", "Botrytis lesions are rapidly expanding, water-soaked, and irregular, lacking the angular, vein-limited shape of downy mildew leaf spots.", "The sporulation of downy mildew is more purplish-gray and less 'fluffy' or dense than that of Botrytis (gray mold)."]}], "management": {"cultural": ["Use certified disease-free seed to prevent introduction.", "Practice crop rotation with non-host crops for at least 3-4 years.", "Improve air circulation through wider plant spacing and weed control.", "Manage irrigation to minimize leaf wetness duration; avoid overhead watering late in the day.", "Remove and destroy infected crop debris after harvest to reduce overwintering inoculum."], "biological": ["Bio-fungicides based on *Bacillus subtilis* or other microbes may offer some suppression when applied preventatively."], "chemical": ["Apply protective and systemic fungicides (e.g., metalaxyl, mancozeb, azoxystrobin) prior to or at the first sign of disease, especially during favorable weather conditions.", "Fungicidal seed treatments are effective at controlling seedborne inoculum and early seedling infections."], "notes": "An integrated pest management (IPM) approach is most effective. Monitor weather forecasts to time fungicide applications. Rotate fungicide modes of action to prevent resistance."}, "qa_seeds": {"verification_templates": ["Is there a fuzzy, grayish-purple growth on the underside of the pea leaf?", "Does the upper surface of the leaf show angular, yellowish patches?", "Can you confirm the presence of downy mildew on this pea plant?", "Are the symptoms on this plant consistent with a downy mildew infection?", "Is there evidence of a fungal-like disease on the leaves?"], "attribute_templates": ["What color is the mold on the leaf?", "Where on the leaf is the fuzzy growth located?", "What is the shape of the yellow spots on the top of the leaf?", "Are the pods also showing signs of infection?", "Describe the symptoms visible on the upper surface of the leaves.", "Is the plant stunted compared to a healthy one?"], "diagnosis_templates": ["What disease causes grayish-purple mold on the bottom of pea leaves and yellow spots on top?", "Based on the angular lesions and lower-surface mold, what is wrong with my pea plant?", "I see fuzzy growth on my pea leaves. Is it downy mildew or powdery mildew?"], "counterfactual_templates": ["If the fuzzy growth were white and on top of the leaf, would it still be downy mildew?", "What would the symptoms look like if this were Ascochyta blight instead?", "If the plant were healthy, what would the leaves look like?"], "severity_templates": ["How severe is this downy mildew infection?", "What percentage of the total leaf area is affected by lesions?", "Would you classify this infection as mild, moderate, or severe?"], "confounders": ["powdery_mildew", "ascochyta_blight", "botrytis_blight"]}, "data_requirements": {"min_resolution_px": 1024, "min_roi_fraction": 0.3, "lighting_notes": "Diffuse, even lighting is preferred. Avoid harsh shadows or direct sunlight, which can obscure the color and texture of the mold and lesions.", "occlusion_notes": "Ensure the underside of at least one symptomatic leaf is clearly visible and in focus. The angular shape of lesions on the top surface should also be captured without being blocked by other leaves."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["University Extension Plant Disease Guides", "APS Compendium of Pea Diseases", "General Plant Pathology Textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "peas.disease_fungal.fusarium_wilt", "aliases": ["Pea wilt", "Fusarium wilt of pea"], "crop": {"common_name": "Peas", "scientific_name": "Pisum sativum", "family": "Fabaceae"}, "condition": {"common_name": "Fusarium wilt", "scientific_name": "Fusarium oxysporum f. sp. pisi", "alt_names": ["Pea wilt"], "pathogen": {"type": "fungus", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Sordariomycetes", "order": "Hypocreales", "family": "Nectriaceae", "genus": "Fusarium", "species": "oxysporum"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": ["contaminated farm equipment"], "dispersal": ["soil", "water (irrigation/rain splash)", "infected seed"], "overwintering": ["chlamydospores in soil", "infected crop debris", "infected seed"]}, "environmental_risk": {"risk_factors": ["warm soil temperatures", "acidic soils (pH < 6.5)", "poor soil drainage", "soil compaction", "high nitrogen fertilization", "short crop rotations with susceptible hosts"], "temp_c_day": [22, 28], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "One or a few lower leaves are yellowing or have begun to wilt. Plant is not noticeably stunted.", "moderate": "Significant yellowing and wilting affecting the lower half of the plant. Stunting is evident. Plant may be leaning.", "severe": "Entire plant is yellow, severely wilted, or dead. Stem base may be dark and shriveled. Significant stunting.", "notes": "Severity is assessed on a whole-plant basis, focusing on the proportion of the plant showing symptoms. Fusarium wilt often appears in patches in a field."}, "symptoms": {"leaves": ["Yellowing (chlorosis) begins on the lowest leaves and progresses up the plant.", "Leaves and stipules curl downwards.", "Wilting of foliage, which may be more pronounced during the hottest part of the day.", "Affected leaves become dry and brittle before dying."], "stems": ["Vascular tissue in the lower stem and taproot shows a characteristic orange, reddish-brown, or dark brown discoloration when cut open.", "Stem base may appear thickened or swollen in some cases.", "In advanced stages, the stem near the soil line may become necrotic."], "fruit": ["Pods may be underdeveloped, poorly filled, or absent on severely affected plants."], "roots": ["The primary diagnostic sign is the internal discoloration of the vascular cylinder, which extends from the roots up into the stem."], "whole_plant": ["Overall stunting of plant growth.", "Wilting often starts on one side of the plant (unilateral wilt).", "Eventual collapse and death of the plant."], "signs_microscopic_or_visible": ["No visible fungal growth (e.g., mycelium, spores) on the external plant surfaces under field conditions."]}, "lookalikes": [{"condition_name": "Ascochyta blight", "condition_id": "peas.disease_fungal.ascochyta_blight", "key_differences": ["Ascochyta causes distinct, circular, tan-to-purplish-black lesions on leaves, stems, and pods; Fusarium wilt causes a systemic yellowing and wilting without discrete foliar lesions.", "Ascochyta lesions often contain tiny black specks (pycnidia), which are absent in Fusarium wilt.", "Fusarium wilt is defined by the internal reddish-brown vascular discoloration in the stem, a symptom not caused by Ascochyta."]}, {"condition_name": "Stem rot", "condition_id": "peas.disease_fungal.stem_rot", "key_differences": ["Stem rots typically cause a visible, soft, water-soaked decay or lesion at the soil line, often with white fungal growth (mycelium); Fusarium wilt symptoms are primarily internal.", "Fusarium wilt causes a slow progression of wilting from the bottom up; severe stem rot often leads to a rapid collapse of the entire plant.", "The key diagnostic for Fusarium is the reddish-brown vascular discoloration extending far up the stem, which is absent in most common stem rots."]}], "management": {"cultural": ["Plant certified disease-free seed.", "Select resistant pea varieties; many are available for specific races of the pathogen.", "Implement long crop rotations (at least 4-5 years) with non-host crops like cereals.", "Improve soil drainage and avoid over-irrigation.", "Manage soil pH to be between 6.5 and 7.0, as acidic soils favor the disease."], "biological": ["Soil amendments with beneficial microbes like *Trichoderma* or *Bacillus subtilis* may help suppress the pathogen population."], "chemical": ["Fungicide seed treatments can protect seedlings and reduce seed-borne spread.", "Soil fumigation is effective but generally not economically viable for commercial pea production."], "notes": "The most effective management strategy is the use of resistant cultivars combined with long crop rotations, as the pathogen can persist in the soil for over 10 years."}, "qa_seeds": {"verification_templates": ["Is this plant wilting?", "Are the lower leaves yellow?", "Does this plant appear stunted?", "Is the yellowing concentrated at the bottom of the plant?", "Is there any visible mold or fungal growth on the stem?"], "attribute_templates": ["What part of the plant is showing yellowing?", "Describe the overall health of this plant.", "Is the wilting uniform or is it more severe on one side of the plant?", "What color is the tissue inside the cut stem?", "Are there distinct spots on the leaves or is it a general yellowing?"], "diagnosis_templates": ["What disease causes pea plants to wilt and turn yellow from the bottom up?", "Based on the stunting and lower leaf yellowing, what is the likely disease?", "A pea plant shows unilateral wilting and has reddish-brown discoloration inside its stem. What is the diagnosis?"], "counterfactual_templates": ["If this were powdery mildew, what would you expect to see on the leaf surface?", "What symptom would be present on the pods if this were Ascochyta blight instead of Fusarium wilt?", "If this plant were suffering from drought instead of a disease, would you expect the wilting to be patchy or uniform across the field?"], "severity_templates": ["How would you rate the severity of wilting on this plant: mild, moderate, or severe?", "What percentage of this plant is yellow and wilted?", "Is the infection mild enough for the plant to likely still produce pods?"], "confounders": ["ascochyta_blight", "stem_rot", "drought_stress", "root_rot_complex", "nutrient_deficiency"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.4, "lighting_notes": "Use diffuse, even lighting. Avoid hard shadows or overexposure, which can obscure the subtle yellowing of early-stage infection or be confused with wilting.", "occlusion_notes": "The entire plant, especially the lower leaves and stem base, should be clearly visible. For definitive diagnosis, an image of a longitudinally-sectioned lower stem is required to show vascular discoloration."}, "provenance": {"created_by": "AI Plant Pathologist Expert", "reviewed_by": "Human Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University extension guides for pulse crops", "APS Compendium of Pea Diseases and Pests, Second Edition", "General plant pathology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "peas.healthy.healthy", "aliases": ["normal peas", "no disease"], "crop": {"common_name": "Peas", "scientific_name": "Pisum sativum", "family": "Fabaceae"}, "condition": {"common_name": "Healthy", "scientific_name": null, "alt_names": ["Normal", "Asymptomatic"], "pathogen": {"type": "none", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "healthy", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": [], "temp_c_day": [], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "No visible signs of disease, stress, or nutrient deficiency. Plant is vigorous and appropriately developed for its growth stage.", "moderate": "Not applicable for healthy condition.", "severe": "Not applicable for healthy condition.", "notes": "This rubric confirms the absence of symptoms. Any deviation from the 'mild' description indicates a potential issue that is not 'healthy'."}, "symptoms": {"leaves": ["Uniformly green color, appropriate for the variety (may range from light to dark green).", "Leaves are turgid, fully expanded, and show no signs of wilting, curling, or distortion.", "Leaf surfaces are smooth and free of spots, lesions, pustules, or powdery growth.", "No yellowing (chlorosis) or browning (necrosis) is present.", "Tendrils are green and flexible."], "stems": ["Stems are firm, upright, or climbing as expected for the variety.", "Stem color is a uniform green, without any streaks, cankers, or dark lesions.", "Stem base is firm and not discolored or water-soaked."], "fruit": ["Pods are well-formed, plump, and have a uniform green color.", "Pod surfaces are smooth and free of spots, sunken lesions, or insect holes.", "Seeds inside the pod are developing normally."], "roots": ["Root system is well-developed, with a white or light-tan color.", "No signs of rot, discoloration, or galls.", "Nitrogen-fixing nodules (if present) are typically pinkish-white inside."], "whole_plant": ["Vigorous growth appropriate for the age and variety.", "Plant is upright and not stunted or wilted."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "powdery_mildew", "condition_id": "peas.fungal.powdery_mildew", "key_differences": ["Healthy leaves have a clean, uniform green surface, whereas early powdery mildew shows small, white, talc-like spots.", "Healthy stems are smooth and green, unlike stems with powdery mildew which can become covered in a white fungal mat.", "A healthy plant has no powdery growth on any surface."]}, {"condition_name": "fusarium_wilt", "condition_id": "peas.fungal.fusarium_wilt", "key_differences": ["Healthy plants maintain green foliage, while fusarium wilt causes distinct yellowing (chlorosis) that typically starts on the lower leaves and progresses upward.", "Healthy plants are turgid and upright, whereas fusarium wilt causes wilting, often on one side of the plant first.", "The internal vascular tissue of a healthy stem base is white/green; in fusarium wilt, it is often reddish-brown or discolored."]}, {"condition_name": "ascochyta_blight", "condition_id": "peas.fungal.ascochyta_blight", "key_differences": ["Healthy leaves, stems, and pods are unblemished. Ascochyta blight appears as small, circular, purplish-black to tan spots, often with a darker border.", "Healthy stems are uniformly green and firm, while this disease can cause dark, sunken lesions (cankers) at the stem base, leading to lodging.", "Healthy pods are smooth and green; infected pods develop sunken, circular lesions that can affect seed quality."]}], "management": {"cultural": ["Use certified disease-free seed.", "Practice crop rotation with non-host crops (e.g., cereals) for 3-4 years.", "Ensure good soil drainage and avoid over-irrigation.", "Maintain adequate plant spacing to promote air circulation.", "Remove and destroy crop debris after harvest."], "biological": [], "chemical": [], "notes": "Management for a 'healthy' state focuses on preventative measures to maintain plant health and avoid disease onset."}, "qa_seeds": {"verification_templates": ["Are the leaves uniformly green and free of spots?", "Does the plant appear upright and turgid?", "Is there any powdery white substance on the leaves or stems?", "Are the pods smooth and unblemished?", "Can you see any signs of yellowing or wilting, especially on the lower leaves?"], "attribute_templates": ["What color are the leaves?", "Describe the surface of the pea pods.", "What is the overall posture of the plant?", "Is there any discoloration on the stem, particularly near the soil line?", "Examine the leaves; are there any spots or lesions present?"], "diagnosis_templates": ["Is this pea plant healthy?", "Does this plant show any symptoms of disease or stress?", "What condition is affecting this plant, if any?"], "counterfactual_templates": ["If this plant had powdery mildew, what would you expect to see on the leaves?", "What would the lower leaves look like if this plant were in the early stages of fusarium wilt?", "If you saw small, dark, sunken spots on the pods, what disease might that indicate instead of a healthy state?"], "severity_templates": ["How severe is the condition shown in the image?", "What percentage of the plant is affected by symptoms?", "Is there any visible damage on this plant?"], "confounders": ["powdery_mildew", "fusarium_wilt", "ascochyta_blight"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Diffuse, even lighting is ideal. Avoid harsh shadows or direct sunlight that can create glare and obscure subtle symptoms.", "occlusion_notes": "Ensure the primary plant parts (leaves, stems, pods) are not significantly occluded by other plants, weeds, or objects."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["General university extension guides for pea cultivation", "APS Compendium of Pea Diseases and Pests"]}}
+{"schema_version": "1.0.0", "disease_id": "peas.unknown.leaf_roll", "aliases": ["Pea leaf roll", "Pea leaf rolling"], "crop": {"common_name": "Pea", "scientific_name": "Pisum sativum", "family": "Fabaceae"}, "condition": {"common_name": "Leaf Roll", "scientific_name": null, "alt_names": [], "pathogen": {"type": "unknown", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "unknown", "transmission": {"vectors": ["Aphids (primarily Pea aphid, Acyrthosiphon pisum)"], "dispersal": ["Insect movement between plants and fields"], "overwintering": ["In perennial legume hosts (e.g., alfalfa, clover)", "In overwintering aphid vectors"]}, "environmental_risk": {"risk_factors": ["High aphid populations early in the growing season", "Proximity to infected perennial host plants", "Mild winters that favor aphid survival", "Warm, dry conditions that promote aphid reproduction and movement"], "temp_c_day": [15, 25], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "A few scattered plants show slight upward or downward rolling of upper leaf margins. No significant stunting or yellowing is visible.", "moderate": "Up to 30% of plants in a given area are affected. Leaf rolling is obvious, often accompanied by some yellowing and slight stunting.", "severe": "More than 30% of plants are affected. Severe leaf rolling, prominent yellowing, and significant stunting are widespread. Pod development is visibly reduced.", "notes": "Severity is based on the percentage of plants showing symptoms and the degree of stunting, as this best correlates with potential yield loss. Leaf roll is often caused by viruses, where impact is systemic."}, "symptoms": {"leaves": ["Leaf margins roll upwards or downwards, often becoming thickened and leathery or brittle.", "Symptoms typically appear on the youngest leaves first.", "Affected leaves may turn pale green or yellow, sometimes with slight vein clearing.", "The overall texture of affected leaves is stiff, not wilted."], "stems": ["Internodes are often shortened, leading to a compact, bushy appearance."], "fruit": ["Pods may be smaller, deformed, or fewer in number than on healthy plants.", "Pod set can be significantly reduced in severely affected plants."], "roots": [], "whole_plant": ["Overall plant growth is stunted, sometimes severely.", "The plant may appear abnormally stiff and upright."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "Fusarium Wilt", "condition_id": "peas.fungal.fusarium_wilt", "key_differences": ["Fusarium wilt symptoms (yellowing, wilting) start on lower leaves and progress upwards; leaf roll typically starts on upper leaves.", "Wilted leaves in Fusarium are flaccid, while in viral leaf roll they are often stiff and brittle.", "A key sign of Fusarium wilt is a reddish-brown discoloration inside the stem's vascular tissue near the soil line, which is absent in leaf roll.", "Fusarium wilt causes a true wilt, whereas leaf roll plants are stunted but not typically wilted."]}, {"condition_name": "Downy Mildew", "condition_id": "peas.oomycete.downy_mildew", "key_differences": ["Downy mildew is characterized by a fuzzy, purplish-grey mold on the underside of leaves, which is absent in leaf roll.", "Downy mildew causes distinct, angular, yellow-to-brown lesions on the upper leaf surface.", "Any leaf curling with downy mildew is secondary to the lesions, not the primary, systemic symptom.", "Downy mildew is favored by cool, moist conditions, whereas the aphid vectors for viral leaf roll are often favored by warmer, drier weather."]}], "management": {"cultural": ["Use certified virus-free seed to avoid introducing the pathogen.", "Control aphid populations early in the season through monitoring and timely intervention.", "Remove and destroy infected plants to reduce the source of the virus within the crop.", "Manage nearby perennial legume weeds and host crops (e.g., alfalfa, clover) that can harbor the virus and aphids."], "biological": ["Promote natural enemies of aphids, such as lady beetles, lacewings, and parasitic wasps, by minimizing broad-spectrum insecticide use."], "chemical": ["Apply systemic or contact insecticides to control aphid vectors. Timing is critical and should target early aphid migration into the field.", "Seed treatments with systemic insecticides can provide early-season protection against aphids."], "notes": "Management is preventative and focuses on controlling the aphid vector, as there is no cure for an already-infected plant."}, "qa_seeds": {"verification_templates": ["Does this pea plant show signs of leaf rolling or curling?", "Are the margins of the leaves on this plant rolled upwards or downwards?", "Is there evidence of leaf roll on this plant?", "Can you see any leaves that appear thickened and brittle?", "Does this plant look stunted compared to a healthy one?"], "attribute_templates": ["Describe the appearance of the rolled leaves.", "Are the rolled leaves also yellow?", "Which part of the plant shows the most severe leaf rolling?", "Is the plant with rolled leaves also showing signs of stunting?", "What is the texture of the affected leaves (e.g., wilted, stiff, brittle)?"], "diagnosis_templates": ["What condition causes the leaves to roll and the plant to be stunted?", "Based on the stiff, rolled leaves, what is wrong with this pea plant?", "Is this pea plant affected by leaf roll?"], "counterfactual_templates": ["If this were fusarium wilt, what other symptom would you expect to see on the lower leaves?", "What visible sign would be present on the leaf undersides if this were downy mildew?", "What would the leaves look like if this plant were healthy?"], "severity_templates": ["How severe is the leaf roll on this plant?", "Based on the stunting and number of affected leaves, would you classify this as mild, moderate, or severe leaf roll?", "What percentage of the plant's leaves are affected by rolling?"], "confounders": ["fusarium_wilt", "downy_mildew"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Use even, diffuse light. Avoid harsh shadows and overexposure, which can hide subtle color changes and leaf texture.", "occlusion_notes": "The affected leaves and overall plant structure should be clearly visible. Avoid significant occlusion from neighboring plants or weeds to allow for assessment of stunting."}, "provenance": {"created_by": "Expert Plant Pathologist", "reviewed_by": "VQA Dataset Designer", "created_at": "2023-10-27T11:30:00Z", "updated_at": "2023-10-27T11:30:00Z", "sources": ["General university extension guides for pea diseases", "APS Compendium of Pea Diseases and Pests, Second Edition"]}}
+{"schema_version": "1.0.0", "disease_id": "peas.pest_insect.pod_borer_damage", "aliases": ["pea moth damage", "pea pod borer", "podworm damage"], "crop": {"common_name": "Pea", "scientific_name": "Pisum sativum", "family": "Fabaceae"}, "condition": {"common_name": "Pod Borer Damage", "scientific_name": "Cydia nigricana", "alt_names": ["Pea Moth"], "pathogen": {"type": "insect", "taxonomy": {"kingdom": "Animalia", "phylum": "Arthropoda", "class": "Insecta", "order": "Lepidoptera", "family": "Tortricidae", "genus": "Cydia", "species": "nigricana"}}}, "issue_type": "pest_insect", "transmission": {"vectors": ["Adult moth"], "dispersal": ["Adult moth flight"], "overwintering": ["Pupae overwinter in silk cocoons in the soil."]}, "environmental_risk": {"risk_factors": ["Warm, dry weather during flowering and pod set", "Fields with a history of infestation", "Proximity to alternative hosts like vetch"], "temp_c_day": [18, 28], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "1-10% of pods show signs of entry holes or damage.", "moderate": "11-40% of pods show damage; some pods may contain larvae.", "severe": ">40% of pods are damaged; widespread presence of larvae and frass.", "notes": "Severity is assessed by the percentage of pods affected on the plant or in a sample. Damage includes entry/exit holes, internal feeding, and presence of frass or larvae."}, "symptoms": {"leaves": ["Leaves are generally unaffected by direct pod borer feeding."], "stems": ["Stems are typically not damaged."], "fruit": ["Small, circular entry or exit holes on the surface of pea pods.", "Holes may have a small, discolored ring around them.", "Internal feeding damage visible when pods are opened.", "Developing peas (seeds) are partially or fully eaten.", "Brown, granular insect excrement (frass) is present inside the pod.", "Pods may appear distorted, yellowed, or ripen prematurely.", "Silken webbing may be present on or inside the pod."], "roots": [], "whole_plant": ["Plant health is often unaffected, with damage localized to the pods."], "signs_microscopic_or_visible": ["Visible pale yellow to greenish-white caterpillars (larvae) inside pods.", "Visible frass (insect excrement) inside pods."]}, "lookalikes": [{"condition_name": "Ascochyta Blight", "condition_id": "peas.fungal.ascochyta_blight", "key_differences": ["Ascochyta lesions are sunken, purplish-black spots, not clean-cut holes.", "Ascochyta blight also causes distinct lesions on leaves and stems, whereas pod borer damage is confined to pods.", "No larvae, webbing, or frass are present inside pods with Ascochyta blight.", "Ascochyta lesions on pods often have a target-like appearance with tiny black dots (pycnidia)."]}, {"condition_name": "Anthracnose", "condition_id": "peas.fungal.anthracnose", "key_differences": ["Anthracnose causes dark, sunken, circular lesions, not small, drilled holes.", "Lesions from anthracnose have a raised, dark border and a lighter center, which may contain pinkish spore masses in moist conditions.", "Damage is a necrotic lesion, not a physical hole leading to an eaten-out interior.", "No internal frass or larvae are associated with anthracnose."]}], "management": {"cultural": ["Crop rotation with non-legume crops for at least 3 years.", "Post-harvest tillage to expose overwintering pupae to predators and weather.", "Planting early-maturing varieties to escape peak moth populations.", "Remove and destroy infested pods and crop debris."], "biological": ["Conservation and encouragement of natural enemies like parasitic wasps."], "chemical": ["Application of registered insecticides timed with moth flight and egg-laying.", "Use of pheromone traps to monitor adult moth populations and determine optimal spray timing."], "notes": "Effective management relies heavily on monitoring adult moth populations with pheromone traps to time interventions precisely before larvae enter the pods."}, "qa_seeds": {"verification_templates": ["Is there a small, circular hole on the surface of the pea pod?", "Can you see a caterpillar inside this opened pea pod?", "Does this pod show signs of being bored into by an insect?", "Is there evidence of frass or insect excrement inside the pod?", "Are the peas inside this pod partially eaten?"], "attribute_templates": ["What is the shape of the damage on the pod's exterior?", "What color is the larva inside the pod?", "Besides a hole, what else is visible inside the damaged pod?", "Where on the plant is the damage located?", "Describe the material found inside the pod besides the peas."], "diagnosis_templates": ["What pest caused the holes and internal feeding on these pea pods?", "Based on the caterpillar and frass inside the pod, what is the issue?", "The pods have small holes and eaten peas. What is the diagnosis?"], "counterfactual_templates": ["If the spots on the pods were sunken and purplish-black instead of being holes, what could be the cause?", "What would you expect to see on the leaves if this were Ascochyta blight instead of pod borer damage?"], "severity_templates": ["How severe is the pod borer infestation, given that about half of the pods have holes?", "Based on the number of damaged pods, would you classify this as a mild or severe case of pod borer damage?"], "confounders": ["ascochyta_blight", "anthracnose"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Good, even lighting. Avoid harsh shadows that could obscure small entry holes.", "occlusion_notes": "Pods should be clearly visible and not heavily occluded by leaves. Images of opened pods showing internal damage are highly valuable."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2024-05-23T10:00:00Z", "updated_at": "2024-05-23T10:00:00Z", "sources": ["University extension guides on vegetable crop pests", "APS Compendium of Pea Diseases and Pests"]}}
+{"schema_version": "1.0.0", "disease_id": "peas.disease_fungal.powdery_mildew", "aliases": ["Pea powdery mildew"], "crop": {"common_name": "Peas", "scientific_name": "Pisum sativum", "family": "Fabaceae"}, "condition": {"common_name": "Powdery Mildew", "scientific_name": "Erysiphe pisi", "alt_names": [], "pathogen": {"type": "fungus", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Leotiomycetes", "order": "Erysiphales", "family": "Erysiphaceae", "genus": "Erysiphe", "species": "pisi"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["Windborne conidia", "Infected crop debris"], "overwintering": ["As dormant mycelium on infected plant debris", "As chasmothecia (sexual fruiting bodies) on crop residue"]}, "environmental_risk": {"risk_factors": ["High relative humidity (but dry leaf surfaces)", "Moderate temperatures", "Dense plant canopies with poor air circulation", "Late-sown crops"], "temp_c_day": [15, 25], "temp_c_night": [10, 20], "relative_humidity_pct": [70, 95], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of upper leaf surface covered by sparse, discrete, white mycelial patches.", "moderate": "11-40% of leaf surface covered; patches are coalescing and denser; some lower leaf chlorosis may be present.", "severe": ">40% of leaf surface covered; dense, felt-like mycelial mats cover leaves, stems, and pods; significant chlorosis, necrosis, and premature defoliation is visible.", "notes": "Severity is assessed on the upper surfaces of photosynthetically active leaves. Pod infection should also be noted as it impacts yield and quality. Unlike many other fungal diseases, powdery mildew does not require free water on the leaf surface for infection, hence the threshold of 0 hours."}, "symptoms": {"leaves": ["Small, discrete, white spots with a talc-like texture appear first on the upper surface of older, lower leaves.", "Spots expand and coalesce to form a dense, white to grayish, powdery mat.", "Infected leaves may turn yellow (chlorotic), then brown (necrotic), and senesce prematurely.", "Tiny, black specks (chasmothecia) may be visible embedded in the white mycelium late in the season.", "The white powdery growth can be rubbed off with a finger, revealing relatively undamaged tissue underneath in early stages."], "stems": ["White, powdery patches can develop on stems and petioles, especially in severe infections."], "fruit": ["Powdery white patches can form on the surface of pods, sometimes referred to as 'fuzzy pods'.", "Severe pod infection can cause distortion, reduced seed size, and marketability issues."], "roots": [], "whole_plant": ["Infected plants may appear stunted or less vigorous than healthy plants.", "Severe infections give the entire plant canopy a whitewashed or dusty appearance."], "signs_microscopic_or_visible": ["Visible white to grayish superficial mycelium and conidia (asexual spores) on plant surfaces."]}, "lookalikes": [{"condition_name": "Downy Mildew", "condition_id": "peas.disease_fungal.downy_mildew", "key_differences": ["Powdery mildew is white and powdery, primarily on the *upper* leaf surface; downy mildew is grayish-purple and fuzzy, primarily on the *lower* leaf surface.", "Powdery mildew spots are superficial; downy mildew causes systemic yellow to brownish lesions visible on *both* leaf surfaces.", "Powdery mildew thrives in high humidity but dry leaves; downy mildew requires high humidity *and* leaf wetness for infection."]}, {"condition_name": "Ascochyta Blight", "condition_id": "peas.disease_fungal.ascochyta_blight", "key_differences": ["Powdery mildew is a superficial white powder; Ascochyta blight causes distinct, sunken, tan-to-brown lesions, often with a dark border.", "Ascochyta lesions contain tiny black dots (pycnidia) within the necrotic tissue, which are absent in powdery mildew.", "Ascochyta blight often causes stem lesions near the soil line ('foot rot'), a symptom not caused by powdery mildew."]}], "management": {"cultural": ["Plant resistant or tolerant pea varieties.", "Ensure good air circulation through wider row spacing and weed control.", "Avoid excessive nitrogen fertilization, which promotes lush, susceptible growth.", "Rotate crops with non-hosts for at least 2 years.", "Incorporate or remove infected crop debris after harvest to reduce overwintering inoculum."], "biological": ["Application of bio-fungicides containing *Bacillus subtilis* or potassium bicarbonate can suppress the disease."], "chemical": ["Apply registered fungicides (e.g., sulfur-based, strobilurins, DMIs) at the first sign of disease.", "Ensure thorough spray coverage, as the fungus can be protected within the dense plant canopy."], "notes": "Early detection is crucial. Fungicide applications are most effective when applied preventatively or at the very early stages of an epidemic."}, "qa_seeds": {"verification_templates": ["Is there a white, powdery substance on the surface of the pea leaves?", "Can you confirm the presence of a talc-like growth on the pods or stems?", "Does the white material rub off easily with a finger?", "Are the white patches primarily located on the upper surface of the leaves?", "Verify that the affected leaves are still mostly green underneath the white growth."], "attribute_templates": ["What is the color of the powdery growth on the leaves?", "Describe the distribution of the white spots on the plant.", "Are the spots small and discrete or have they merged into a large mat?", "Are there any tiny black specks embedded within the white patches?", "What part of the plant is most affected: lower leaves, upper leaves, stems, or pods?", "Is there any yellowing or browning of the leaf tissue associated with the white growth?"], "diagnosis_templates": ["Based on the white, powdery growth on the upper leaf surfaces, what disease is affecting this pea plant?", "What fungal disease is characterized by a superficial mycelial mat on pea leaves and pods?", "Is this pea plant infected with powdery mildew?"], "counterfactual_templates": ["If the fuzzy growth were on the underside of the leaf and purplish-gray, what disease would it be instead of powdery mildew?", "What would the symptoms look like if this were Ascochyta blight instead of powdery mildew?"], "severity_templates": ["What percentage of the total leaf area is covered by the white powdery mildew?", "How would you rate the severity of the powdery mildew infection on a scale of mild, moderate, or severe?", "Is the powdery mildew infection limited to a few spots, or has it formed a dense mat covering most leaves?"], "confounders": ["downy_mildew", "ascochyta_blight"]}, "data_requirements": {"min_resolution_px": 800, "min_roi_fraction": 0.3, "lighting_notes": "Diffuse, bright, indirect light is best. Avoid harsh shadows or direct sunlight which can overexpose the white mycelium and hide its texture.", "occlusion_notes": "Ensure the upper surface of symptomatic leaves is clearly visible and not obscured by other leaves, shadows, or debris."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2024-05-23T10:00:00Z", "updated_at": "2024-05-23T10:00:00Z", "sources": ["University extension guides for pulse crops", "APS Compendium of Pea Diseases and Pests, Second Edition", "General plant pathology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "peas.disease_fungal.stem_rot", "aliases": ["sclerotinia stem rot", "white mold", "cottony rot"], "crop": {"common_name": "Pea", "scientific_name": "Pisum sativum", "family": "Fabaceae"}, "condition": {"common_name": "Stem Rot", "scientific_name": "Sclerotinia sclerotiorum", "alt_names": ["White Mold", "Sclerotinia Blight", "Cottony Rot"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Leotiomycetes", "order": "Helotiales", "family": "Sclerotiniaceae", "genus": "Sclerotinia", "species": "sclerotiorum"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["Wind-blown ascospores released from apothecia", "Infected seed", "Movement of contaminated soil and equipment"], "overwintering": ["As sclerotia (hard, black fungal structures) in the soil", "Mycelium in infected plant debris"]}, "environmental_risk": {"risk_factors": ["Cool, moist conditions", "Dense plant canopies with poor air circulation", "Prolonged periods of canopy wetness (rain, dew, irrigation)", "Infection often initiated on senescing flower petals"], "temp_c_day": [15, 21], "temp_c_night": [], "relative_humidity_pct": [90, 100], "leaf_wetness_hours_threshold": 24}, "severity_rubric": {"unit": "qualitative", "mild": "One or two small, water-soaked lesions on lower stems or petioles; no visible mycelium or wilting.", "moderate": "Expanding lesions with visible white, cottony mycelium; partial wilting of affected stems or leaves.", "severe": "Extensive mycelial growth girdling the stem, causing plant collapse; hard, black sclerotia are visible within or on the stem.", "notes": "Severity is assessed by the extent of stem girdling and plant collapse, which directly impacts yield. The presence of white mycelium and black sclerotia are key indicators of moderate to severe infection."}, "symptoms": {"leaves": ["Leaves on infected stems turn yellow, then wilt and become necrotic.", "Petioles develop water-soaked lesions where they attach to the main stem.", "Infected leaves in contact with the soil may develop a watery rot."], "stems": ["Water-soaked, soft lesions appear, often at the soil line, nodes, or where flowers attach.", "Lesions expand rapidly, becoming bleached, tan, or light gray.", "A dense, white, cottony mycelial growth covers the lesion area in humid conditions.", "The stem becomes soft and rots, leading to plant lodging or collapse."], "fruit": ["Pods in contact with infected stems or soil develop a watery soft rot.", "Pods become covered in the characteristic white, cottony mycelium.", "Hard, black sclerotia may form inside or on the surface of infected pods."], "roots": ["Typically not the primary site of infection, but rot can progress from the stem base to the crown."], "whole_plant": ["Wilting of specific branches or the entire plant above the infection point.", "Sudden plant collapse or death, especially in dense, moist canopies."], "signs_microscopic_or_visible": ["Prominent, white, cottony mycelium on stems, leaves, and pods.", "Formation of hard, irregular, black sclerotia (1-10 mm), resembling rodent droppings, on or inside stems and pods."]}, "lookalikes": [{"condition_name": "Botrytis Blight", "condition_id": "peas.disease_fungal.botrytis_blight", "key_differences": ["Mycelium is a fuzzy, grayish-brown mold, not the bright white, cottony growth of Sclerotinia.", "Lesions are typically tan or light brown and less 'watery' or 'bleached' than early stem rot lesions.", "Sclerotinia produces large, hard, black sclerotia; Botrytis produces much smaller, less distinct sclerotia, if any."]}, {"condition_name": "Ascochyta Blight", "condition_id": "peas.disease_fungal.ascochyta_blight", "key_differences": ["Causes purplish-black to brown, sunken lesions on the stem, often with a target-like appearance.", "Ascochyta lesions contain tiny black specks (pycnidia), not white cottony mycelium or large sclerotia.", "Ascochyta blight is characterized by distinct spots on leaves and pods, whereas stem rot causes a more generalized, watery rot."]}, {"condition_name": "Fusarium Wilt", "condition_id": "peas.disease_fungal.fusarium_wilt", "key_differences": ["Causes yellowing and wilting starting from the lower leaves upwards, with no external stem lesions, rot, or mycelium.", "Slicing the lower stem of a Fusarium-infected plant reveals reddish-brown discoloration of the vascular tissue.", "Fusarium wilt is a systemic disease causing a true wilt, while stem rot causes physical collapse due to stem decay."]}], "management": {"cultural": ["Practice crop rotation with non-host crops (e.g., cereals, corn) for at least 3-4 years.", "Improve air circulation by using wider row spacing and avoiding excessive plant density.", "Avoid excessive nitrogen fertilization, which promotes dense, lush canopies.", "Manage broadleaf weeds that can serve as alternative hosts for the pathogen.", "Ensure good soil drainage to reduce surface moisture."], "biological": ["Application of commercial bio-fungicides containing *Coniothyrium minitans* to the soil to parasitize and reduce sclerotia."], "chemical": ["Apply registered foliar fungicides (e.g., boscalid, pyraclostrobin, fluopyram) preventatively, typically at early to full bloom.", "Fungicide applications aim to protect senescing flower petals, which are a primary infection court."], "notes": "Management is primarily preventative, focusing on reducing soil inoculum (sclerotia) and protecting the plant during the susceptible flowering period under favorable environmental conditions."}, "qa_seeds": {"verification_templates": ["Is there a white, cottony growth on the stem of the pea plant?", "Does the stem have a water-soaked or bleached appearance?", "Are there any hard, black structures resembling rodent droppings on or inside the stem?", "Is the plant wilting or collapsing near a rotted area on the stem?", "Confirm the presence of a soft, watery rot on the stem."], "attribute_templates": ["What color is the fungal growth on the stem?", "Describe the texture of the growth on the stem (e.g., cottony, fuzzy, powdery).", "Where on the plant is the rot located?", "Are there any hard, black sclerotia visible?", "Is the affected stem tissue soft and watery or dry and sunken?"], "diagnosis_templates": ["Based on the white cottony mycelium and soft rot on the stem, what disease is affecting this pea plant?", "What is the likely cause of the wilting combined with bleached stem lesions and white fungal growth?", "The presence of black sclerotia inside a rotting pea stem is characteristic of which fungal disease?"], "counterfactual_templates": ["If the growth on the stem were gray and fuzzy instead of white and cottony, what might the disease be?", "If the stem had sunken, purplish-black lesions with tiny black dots instead of a soft rot, what would be the diagnosis?", "If the plant was wilting from the bottom up with no external rot on the stem, what condition should be considered?"], "severity_templates": ["Has the stem rot girdled the stem, causing the plant to collapse?", "Based on the extent of mycelial growth and plant collapse, would you classify this infection as mild, moderate, or severe?", "Are sclerotia, the hard black survival structures, visible on the plant?"], "confounders": ["botrytis_blight", "ascochyta_blight", "fusarium_wilt"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Even, diffuse lighting is preferred. Avoid harsh shadows that can obscure the texture of mycelium or the color of lesions.", "occlusion_notes": "Ensure the base of the stem and any lesions are not obscured by dense foliage or weeds. It may be necessary to part the canopy for a clear view of the infection site."}, "provenance": {"created_by": "AI Plant Pathologist", "reviewed_by": "Human Plant Pathologist", "created_at": "2024-05-21T10:00:00Z", "updated_at": "2024-05-21T10:00:00Z", "sources": ["University extension plant pathology guides", "APS Compendium of Pea Diseases and Pests", "General plant pathology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "rubber.disease_fungal.anthracnose", "aliases": ["rubber leaf fall", "Colletotrichum leaf disease", "shoot dieback"], "crop": {"common_name": "rubber", "scientific_name": "Hevea brasiliensis", "family": "Euphorbiaceae"}, "condition": {"common_name": "anthracnose", "scientific_name": "Colletotrichum gloeosporioides", "alt_names": ["Colletotrichum acutatum"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Sordariomycetes", "order": "Glomerellales", "family": "Glomerellaceae", "genus": "Colletotrichum", "species": "gloeosporioides"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["rain splash", "wind-driven rain", "contaminated pruning tools", "insects (mechanical)"], "overwintering": ["infected fallen leaves and plant debris", "cankers on stems and twigs", "dormant infections on mature leaves"]}, "environmental_risk": {"risk_factors": ["prolonged leaf wetness", "high relative humidity (>90%)", "frequent rainfall", "dense canopy with poor air circulation", "presence of young, tender leaf flush"], "temp_c_day": [25, 30], "temp_c_night": [], "relative_humidity_pct": [80, 100], "leaf_wetness_hours_threshold": 12}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area affected. A few scattered, small lesions on some leaves, no significant leaf distortion or defoliation.", "moderate": "11-40% of leaf area affected. Lesions are numerous, may be coalescing. Noticeable leaf curling, distortion, and some premature leaf drop is visible.", "severe": ">40% of leaf area affected. Extensive necrotic blotches cover leaves, leading to severe leaf distortion, withering, significant defoliation, and potential dieback of shoots.", "notes": "Assessment should focus on the new flushes of leaves as they are most susceptible. Severity can also be gauged by the extent of defoliation in the canopy."}, "symptoms": {"leaves": ["Small, water-soaked, dark green to black spots appear on young, tender leaves.", "Lesions enlarge into circular or irregular shapes, often with a distinct dark brown or black border.", "The center of older lesions becomes sunken and turns pale brown, tan, or grayish-white.", "Lesions frequently start at the leaf tip or margins, causing puckering and distortion.", "In severe infections, spots coalesce, forming large necrotic blotches.", "Affected leaves curl, wither, and drop prematurely, causing 'leaf fall'.", "On mature, hardened leaves, lesions are smaller, arrested, and may develop a 'shot-hole' appearance as the necrotic center falls out."], "stems": ["On young, green shoots, elongated, sunken, dark brown to black cankers can form.", "Infection can girdle and kill young shoots, leading to 'dieback'."], "fruit": ["Sunken, dark, circular lesions can develop on seed pods (capsules).", "Under humid conditions, pinkish-orange spore masses may become visible in the center of pod lesions."], "roots": [], "whole_plant": ["Significant defoliation, particularly during wet seasons when new leaves are emerging.", "Dieback of terminal branches can give the upper canopy a scorched or blighted appearance."], "signs_microscopic_or_visible": ["Under high humidity, tiny, pinkish-orange, gelatinous spore masses (acervuli) may erupt from the center of lesions."]}, "lookalikes": [], "management": {"cultural": ["Prune to improve air circulation and sunlight penetration, which speeds up leaf drying.", "Remove and destroy fallen leaves and infected plant debris to reduce inoculum sources.", "Avoid overhead irrigation to minimize the duration of leaf wetness.", "Maintain balanced plant nutrition to improve plant vigor and resilience."], "biological": ["Application of bio-fungicides containing *Trichoderma* spp. or *Bacillus subtilis* can be used as a preventative measure to compete with the pathogen."], "chemical": ["Apply protective fungicides (e.g., mancozeb, chlorothalonil) before or during high-risk periods like the rainy season.", "Systemic fungicides (e.g., strobilurins, triazoles) can be used for curative action but should be rotated to manage resistance."], "notes": "An integrated approach is crucial. Fungicide applications should be timed to protect new leaf flushes, which are the most vulnerable to infection."}, "qa_seeds": {"verification_templates": ["Does this image show dark spots with pale centers on the rubber leaves?", "Is there evidence of leaf distortion or curling associated with the spots?", "Can you see any signs of dieback on the young shoots?", "Are the leaves shown dropping prematurely from the plant?", "Are there any sunken lesions on the leaves or stems?", "Is there a distinct, dark border around the leaf spots?"], "attribute_templates": ["What is the color of the center of the lesions?", "Describe the shape of the spots on the leaves.", "Are the affected leaves young and tender or old and mature?", "Are the leaf spots concentrated near the tip and margins or spread evenly?", "What color are the borders of the leaf lesions?", "Is there any sign of a pink or orange mass within the spots?"], "diagnosis_templates": ["Based on the sunken spots with dark borders and associated leaf curling, what disease is present?", "The rubber plant has severe leaf fall and shoot dieback. What is the most likely diagnosis?", "What fungal disease is characterized by spots with pale centers on young rubber leaves?"], "counterfactual_templates": ["If the spots were white and powdery instead of sunken and dark-bordered, would it still be anthracnose?", "If the symptoms were uniform yellowing on the oldest leaves, could the diagnosis be anthracnose?"], "severity_templates": ["What percentage of the leaf surface is affected by anthracnose lesions?", "How would you classify the severity of this anthracnose infection: mild, moderate, or severe?", "Is the infection severe enough to be causing widespread defoliation?"], "confounders": ["leaf_spot_generic", "senescence_or_dry"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse lighting is ideal. Avoid harsh shadows and overexposure, which can obscure the color and texture of lesions, especially the pale center and dark border.", "occlusion_notes": "A clear, unobstructed view of several affected leaves is necessary. Symptoms on young shoots and the pattern of defoliation, if present, should also be visible."}, "provenance": {"created_by": "expert_plant_pathologist", "reviewed_by": "expert_plant_pathologist", "created_at": "2024-05-21T10:00:00Z", "updated_at": "2024-05-21T10:00:00Z", "sources": ["University extension guides for tropical crops", "APS Compendium of Tropical Fruit Diseases", "General plant pathology textbooks", "International Rubber Research and Development Board (IRRDB) publications"]}}
+{"schema_version": "1.0.0", "disease_id": "rubber.healthy.healthy", "aliases": ["normal rubber plant", "asymptomatic rubber", "unaffected rubber"], "crop": {"common_name": "rubber", "scientific_name": "Hevea brasiliensis", "family": "Euphorbiaceae"}, "condition": {"common_name": "healthy", "scientific_name": null, "alt_names": ["asymptomatic", "normal"], "pathogen": {"type": "abiotic", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "healthy", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Optimal growing conditions", "Absence of biotic and abiotic stressors", "Adequate nutrition and water"], "temp_c_day": [25, 28], "temp_c_night": [20, 23], "relative_humidity_pct": [80, 95], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "No visible symptoms of disease, stress, or nutrient deficiency. Plant appears vigorous with normal coloration and turgor.", "moderate": "N/A", "severe": "N/A", "notes": "For a healthy plant, severity is not applicable. The 'mild' category serves as a confirmation of the absence of any negative symptoms."}, "symptoms": {"leaves": ["Leaves are trifoliate, composed of three distinct leaflets.", "Mature leaflets are uniformly deep green with a glossy or waxy surface.", "Leaf surfaces are smooth and free of spots, lesions, pustules, or discoloration.", "Leaf margins are entire (smooth) and without necrosis or chlorosis.", "Young, developing leaves (flushes) can be reddish, bronze, or pale green before maturing to dark green.", "Leaves are turgid and well-formed, without distortion, curling, or wilting.", "Petioles are firm, holding the leaflets in their characteristic orientation."], "stems": ["Bark on the trunk and branches is smooth, intact, and typically light grey to brownish.", "Stems are firm and free from cankers, galls, cracks, or dieback.", "On mature trees, tapping panels (if present) show clean cuts and healthy latex flow without discoloration."], "fruit": [], "roots": [], "whole_plant": ["Exhibits vigorous, upright growth with a dense, well-developed canopy.", "Overall appearance is vital and robust."], "signs_microscopic_or_visible": ["Complete absence of any pathogen signs such as mycelia, fungal fruiting bodies, spores, or bacterial ooze."]}, "lookalikes": [{"condition_name": "senescence or dry", "condition_id": "rubber.abiotic.senescence_or_dry", "key_differences": ["Healthy leaves are uniformly green, whereas senescing leaves show a uniform, widespread yellowing (chlorosis), often starting with the oldest, lowest leaves.", "Healthy leaves are turgid and firm; water-stressed (dry) leaves will appear wilted, limp, or have crispy, brown margins.", "Healthy new growth is vibrant (often reddish or light green), while a chronically stressed plant may exhibit stunted new growth."]}, {"condition_name": "anthracnose", "condition_id": "rubber.fungal.anthracnose", "key_differences": ["Healthy leaves have an unblemished surface, while anthracnose causes distinct, often dark brown or black, sunken lesions with defined borders.", "Anthracnose lesions, particularly on young leaves, can cause significant distortion, curling, and blight; healthy leaves are symmetrical and well-formed.", "Lesions from anthracnose may develop a 'shot-hole' appearance as the necrotic center falls out, which is absent on healthy leaves."]}], "management": {"cultural": ["Maintain optimal growing conditions (light, water, humidity).", "Ensure well-drained soil to prevent root rot.", "Provide balanced fertilization to avoid nutrient deficiencies.", "Prune to maintain good air circulation through the canopy.", "Regularly monitor plants for early signs of pests or diseases."], "biological": [], "chemical": [], "notes": "Management for a healthy plant is preventative, focusing on maintaining ideal cultural practices to minimize stress and prevent disease onset."}, "qa_seeds": {"verification_templates": ["Is this rubber plant healthy and free of symptoms?", "Does this image show a normal, asymptomatic rubber leaf?", "Verify that there are no signs of disease or stress on the plant.", "Can you confirm the plant in the image is healthy?", "Is the foliage uniformly green and without lesions?", "Are there any blemishes on the leaves?"], "attribute_templates": ["What color are the mature leaves?", "Describe the surface texture of the leaves.", "Are the leaf margins smooth and intact?", "How would you describe the overall appearance of the plant?", "Are there any spots, holes, or discoloration on the leaves?", "Is the new growth a different color than the mature leaves?", "Are the leaves turgid or wilted?"], "diagnosis_templates": ["What is the condition of this rubber plant?", "Is this rubber plant healthy or diseased?", "Diagnose the state of the plant shown in the image."], "counterfactual_templates": ["If this healthy leaf had uniform yellowing, what might be the cause?", "What would you see on the leaves if this plant had a fungal leaf spot disease?"], "severity_templates": ["Is there any evidence of disease on this plant?", "How would you rate the health of this plant on a scale of healthy to severely diseased?", "Does this plant show any symptoms at all?"], "confounders": ["senescence_or_dry", "anthracnose", "leaf_spot_generic"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse lighting is ideal. Avoid harsh direct sunlight, deep shadows, or flash photography that can create glare and obscure the true color and texture of the leaves.", "occlusion_notes": "The primary leaf or plant part of interest should be mostly unobstructed. Minor occlusion by other leaves or branches is acceptable."}, "provenance": {"created_by": "AI Plant Pathologist", "reviewed_by": "AI Dataset Designer", "created_at": "2023-10-27", "updated_at": "2023-10-27", "sources": ["General plant pathology textbooks", "University extension guides for tropical crops", "APS Compendium of Tropical Plant Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "rubber.disease_fungal.leaf_spot_generic", "aliases": ["Fungal leaf spot of rubber", "Hevea leaf spot"], "crop": {"common_name": "rubber", "scientific_name": "Hevea brasiliensis", "family": "Euphorbiaceae"}, "condition": {"common_name": "leaf spot generic", "scientific_name": "", "alt_names": ["Fungal leaf spot", "Leaf blight"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["windborne spores", "rain splash", "contaminated tools"], "overwintering": ["infected leaf debris on the ground", "dormant mycelium in old lesions on attached leaves"]}, "environmental_risk": {"risk_factors": ["prolonged periods of high humidity (>85%)", "frequent rainfall", "extended leaf wetness", "dense canopy with poor air circulation"], "temp_c_day": [25, 32], "temp_c_night": [], "relative_humidity_pct": [80, 100], "leaf_wetness_hours_threshold": 8}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area affected. A few scattered, discrete spots. No significant yellowing or defoliation.", "moderate": "11-40% of leaf area affected. Numerous spots, some beginning to coalesce. Noticeable chlorosis (yellowing) around lesions.", "severe": ">40% of leaf area affected. Large, coalesced lesions forming necrotic blight patches. Significant leaf yellowing and premature leaf drop (defoliation) is evident.", "notes": "Severity is assessed on the most affected leaves. Defoliation is a key indicator of severe infection pressure."}, "symptoms": {"leaves": ["Small, circular to slightly irregular spots appear on the leaf surface.", "Lesions are initially pinpoint-sized and may be yellow-green or water-soaked.", "Mature spots develop a tan, gray, or whitish center (necrotic tissue).", "A distinct, dark brown or purplish-red border typically surrounds the necrotic center.", "A diffuse yellow halo may be visible around the dark border.", "Multiple spots can merge (coalesce) to form larger, irregular dead patches.", "In severe cases, the entire leaf turns yellow (chlorosis) and drops prematurely.", "Tiny black dots (fruiting bodies of the fungus) may be visible in the center of older lesions."], "stems": [], "fruit": [], "roots": [], "whole_plant": ["Reduced plant vigor due to loss of photosynthetic area.", "Significant defoliation, especially of lower and inner canopy leaves, during high-pressure periods."], "signs_microscopic_or_visible": ["Fungal fruiting bodies (e.g., pycnidia, acervuli) may appear as small black specks within the lesion center, often requiring a hand lens to see clearly."]}, "lookalikes": [{"condition_name": "anthracnose", "condition_id": "rubber.disease_fungal.anthracnose", "key_differences": ["Anthracnose lesions are often darker, more sunken, and may appear as irregular blotches starting from the leaf tip or margin.", "Generic leaf spots are typically more circular and scattered more randomly across the leaf blade.", "Anthracnose can cause significant distortion of young leaves and shoot dieback, which is less characteristic of a typical leaf spot disease."]}, {"condition_name": "senescence or dry", "condition_id": "rubber.abiotic.senescence_or_dry", "key_differences": ["Senescence is a uniform yellowing of the entire leaf, usually starting with the oldest leaves, not discrete spots.", "Drying or scorch appears as brown, crispy tissue at the leaf margins or tip, lacking the defined borders and halos of a fungal spot.", "Fungal spots are distinct lesions that can appear on leaves of any age, whereas senescence is a natural aging process."]}, {"condition_name": "healthy", "condition_id": "rubber.health.healthy", "key_differences": ["Healthy leaves have a uniform, deep green color and a smooth, intact surface.", "There are no spots, lesions, discoloration, or signs of necrosis on a healthy leaf.", "Healthy leaves are turgid and firmly attached to the stem, unlike diseased leaves which may be yellowing or dropping."]}], "management": {"cultural": ["Improve air circulation within the canopy through selective pruning.", "Practice field sanitation by removing and destroying fallen, infected leaves to reduce inoculum.", "Ensure balanced plant nutrition to maintain tree vigor and resilience.", "Avoid overhead irrigation that extends leaf wetness duration."], "biological": ["Application of microbial antagonists like *Trichoderma* spp. or *Bacillus subtilis* may help suppress pathogen populations."], "chemical": ["Application of protective fungicides (e.g., mancozeb, copper hydroxide) before or during high-risk weather conditions.", "Use of systemic fungicides (e.g., strobilurins, triazoles) for curative action, following local resistance management guidelines."], "notes": "Chemical control is most effective when integrated with cultural practices. Timing of applications to protect new leaf flushes is critical."}, "qa_seeds": {"verification_templates": ["Does this leaf have any spots on it?", "Is there any discoloration on the leaf surface?", "Can you see any distinct, circular marks on this leaf?", "Is the leaf uniformly green, or does it have blemishes?", "Are there any dead, brown patches on the leaf?"], "attribute_templates": ["What color is the center of the spot?", "Is there a dark border around the lesion?", "Can you see a yellow halo surrounding the spot?", "Are the spots circular or irregularly shaped?", "Are multiple spots merging together into larger patches?", "Describe the shape and color of the lesions on the leaf."], "diagnosis_templates": ["Based on the scattered, circular spots with tan centers and dark borders, what disease is this?", "Is this leaf healthy or is it affected by a fungal leaf spot?", "What is the likely cause of these numerous, well-defined spots on the rubber leaf?"], "counterfactual_templates": ["If the yellowing was uniform across the entire leaf instead of in spots, what could it be?", "If the lesion was a large, dark, sunken area at the leaf tip, what other disease might it be?"], "severity_templates": ["What percentage of this leaf's surface is covered by spots?", "Based on the number of spots, would you classify this infection as mild, moderate, or severe?", "Are the spots few and scattered, or are they numerous and coalescing?"], "confounders": ["Is this fungal leaf spot or the beginning of natural senescence?", "Could this be anthracnose instead of a generic leaf spot?", "Are these spots a disease or just minor physical or insect damage?"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Diffuse, even lighting is preferred. Avoid harsh direct sunlight and deep shadows which can obscure lesion details like color, borders, and halos.", "occlusion_notes": "The symptomatic leaf should be the main subject, with minimal occlusion from other leaves, branches, or background objects. Key lesions should be fully visible."}, "provenance": {"created_by": "expert_plant_pathologist_vqa_designer", "reviewed_by": "expert_plant_pathologist_vqa_designer", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["General plant pathology compendia", "University extension guides for tropical agriculture", "APS Compendium of Tropical Fruit Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "rubber.physiological_symptom.senescence_or_dry", "aliases": ["drought stress", "leaf yellowing", "seasonal leaf fall", "wintering"], "crop": {"common_name": "rubber", "scientific_name": "Hevea brasiliensis", "family": "Euphorbiaceae"}, "condition": {"common_name": "Senescence or Dry", "scientific_name": null, "alt_names": ["Water stress", "Seasonal leaf drop", "Abiotic stress"], "pathogen": {"type": "abiotic", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "physiological_symptom", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Prolonged dry season", "Low soil moisture", "High ambient temperatures", "Low relative humidity", "Poorly draining or sandy soils", "Seasonal change leading to dormancy ('wintering')"], "temp_c_day": [30, 40], "temp_c_night": [], "relative_humidity_pct": [0, 50], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "A few scattered yellow or browning leaves, primarily older, lower leaves. No significant leaf drop or wilting.", "moderate": "Widespread yellowing and browning across 25-50% of the canopy. Noticeable leaf drop and some wilting of younger leaves.", "severe": "Majority (>50%) of the canopy is yellow, brown, or has dropped. Significant wilting and potential branch dieback is visible.", "notes": "Severity is assessed based on the proportion of the canopy showing symptoms of uniform chlorosis, necrosis, and defoliation. This can be a natural seasonal process."}, "symptoms": {"leaves": ["Uniform yellowing (chlorosis) that often begins on older, lower leaves and progresses upwards.", "Leaf margins turn brown, dry, and may curl upwards or inwards.", "Leaves become brittle and desiccated.", "Widespread, even leaf drop across the entire tree, which can be seasonal.", "General wilting or drooping of leaves, especially during the hottest part of the day.", "Overall leaf color fades from vibrant green to a dull pale green or yellow.", "In severe drought, leaves may turn completely brown while still attached before falling."], "stems": ["Young, succulent stems and petioles may droop or wilt."], "fruit": [], "roots": [], "whole_plant": ["Canopy appears thin, sparse, or defoliated.", "Reduced growth rate or stunted appearance.", "In production trees, latex flow is significantly reduced."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "anthracnose", "condition_id": "rubber.fungal.anthracnose", "key_differences": ["Anthracnose causes distinct, irregular lesions or spots with dark brown or black borders, not uniform yellowing.", "Senescence affects the entire leaf lamina uniformly, while anthracnose lesions are localized.", "Anthracnose lesions may contain tiny black fruiting bodies (acervuli), which are absent in physiological stress.", "Leaf drop from anthracnose is often patchy, whereas seasonal senescence is more uniform across the canopy."]}, {"condition_name": "leaf_spot_generic", "condition_id": "rubber.fungal.leaf_spot_generic", "key_differences": ["Leaf spots are discrete, often circular spots with defined margins, sometimes with a yellow halo.", "Senescence is a generalized, even discoloration of the entire leaf, not localized spots.", "Spots may be scattered randomly, whereas senescence typically starts on older leaves and progresses.", "While spots can merge (coalesce), the initial symptom is clearly spots, unlike the diffuse yellowing of senescence."]}, {"condition_name": "healthy", "condition_id": "rubber.healthy.healthy", "key_differences": ["Healthy leaves are uniformly deep green, turgid, and glossy.", "A healthy canopy is dense and full with no widespread discoloration or leaf drop.", "Senescent leaves are yellow or brown, wilted, and brittle, unlike firm healthy leaves."]}], "management": {"cultural": ["Provide supplemental irrigation during extended dry periods.", "Apply organic mulch around the tree base to conserve soil moisture and moderate soil temperature.", "Ensure proper soil drainage to encourage deep root growth.", "Avoid excessive nitrogen fertilization, which can increase water demand."], "biological": [], "chemical": [], "notes": "Management is focused on mitigating water stress. Note that seasonal leaf drop ('wintering') is a natural physiological process for rubber trees and does not require intervention."}, "qa_seeds": {"verification_templates": ["Is the yellowing spread evenly across the entire leaf?", "Are many leaves on the ground below the tree?", "Do the leaves appear wilted or droopy?", "Are the edges of the leaves brown and curled?", "Is the overall canopy of the tree sparse?", "Are the symptoms on older, lower leaves?"], "attribute_templates": ["What color are the affected leaves?", "Describe the pattern of discoloration on the leaf.", "Are the leaves turgid or brittle?", "What is the overall appearance of the plant canopy?", "Are there any distinct spots or lesions on the leaves?", "Where on the plant are the symptoms most visible?"], "diagnosis_templates": ["What condition causes uniform yellowing and widespread, seasonal leaf drop?", "Based on the drooping leaves and sparse canopy, what is the likely physiological issue?", "If the entire leaf is turning yellow without any spots, what is the diagnosis?"], "counterfactual_templates": ["If there were distinct, dark-bordered spots instead of uniform yellowing, what could it be?", "What would this leaf look like if it were healthy?", "If the yellowing was patchy and had small black dots in the center, what would be the likely disease?"], "severity_templates": ["Based on the percentage of yellow leaves, is the senescence mild, moderate, or severe?", "How would you rate the severity of leaf drop?", "Is this level of canopy thinning considered mild or severe?"], "confounders": ["anthracnose", "leaf_spot_generic"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Use diffuse, even lighting. Avoid hard shadows or direct sun that can wash out the yellow and brown colors.", "occlusion_notes": "For canopy-level assessment, ensure a clear view of a significant portion of the tree. For leaf-level, ensure the symptomatic leaf is not heavily obscured."}, "provenance": {"created_by": "VQA Dataset Designer (Expert Plant Pathologist)", "reviewed_by": "VQA Dataset Designer (Expert Plant Pathologist)", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["General plant pathology textbooks", "University extension guides on rubber cultivation", "APS Compendium of Tropical Plant Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "sunflower.disease_fungal.alternaria_leaf_spot", "aliases": ["alternaria leaf blight", "alternaria blight", "alternaria spot"], "crop": {"common_name": "sunflower", "scientific_name": "Helianthus annuus", "family": "Asteraceae"}, "condition": {"common_name": "alternaria leaf spot", "scientific_name": "Alternaria helianthi", "alt_names": ["alternaria leaf blight"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Pleosporales", "family": "Pleosporaceae", "genus": "Alternaria", "species": "helianthi"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["wind", "rain splash", "contaminated seed", "infected crop debris"], "overwintering": ["infected crop residue", "on or in seeds", "on volunteer sunflowers"]}, "environmental_risk": {"risk_factors": ["high humidity", "prolonged leaf wetness", "warm temperatures", "dense plant canopy", "poor air circulation"], "temp_c_day": [25, 30], "temp_c_night": [], "relative_humidity_pct": [80, 100], "leaf_wetness_hours_threshold": 8}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-5% of leaf area affected; few, scattered lesions, primarily on lower leaves.", "moderate": "6-25% of leaf area affected; multiple lesions on lower and mid-canopy leaves, some lesions may be coalescing.", "severe": ">25% of leaf area affected; extensive lesion coverage and coalescence, significant defoliation of lower leaves, lesions present on upper leaves, stems, or head.", "notes": "Severity is assessed as the percentage of photosynthetic area lost to lesions on the most affected leaves, typically starting from the plant's base."}, "symptoms": {"leaves": ["Initial small, circular, dark green to black water-soaked spots.", "Lesions enlarge to become circular to angular, dark brown to black, and necrotic, often 0.5 to 2.5 cm in diameter.", "Mature lesions frequently display a characteristic 'target spot' or 'bull's-eye' pattern of concentric rings.", "A distinct, chlorotic (yellow) halo often surrounds the necrotic lesion.", "In severe infections, multiple lesions coalesce, causing large blighted areas.", "Affected leaves become brittle, wither, and drop prematurely, starting from the bottom of the plant."], "stems": ["Elongated, dark brown or black streaks or sunken lesions can appear on stems and petioles.", "Severe stem lesions may girdle the plant, causing wilting and lodging."], "fruit": ["Dark, sunken lesions can develop on the back of the flower head (receptacle).", "Infected seeds may be discolored, shriveled, or show poor development."], "roots": [], "whole_plant": ["Stunted growth if infection occurs early and is severe.", "Progressive defoliation from the bottom of the plant upwards."], "signs_microscopic_or_visible": ["Under high humidity, a dark, velvety or fuzzy fungal growth (conidia) may be visible in the center of older lesions."]}, "lookalikes": [{"condition_name": "downy mildew", "condition_id": "sunflower.disease_oomycete.downy_mildew", "key_differences": ["Downy mildew lesions are angular and vein-limited, appearing as pale green or yellow patches on the upper leaf surface, not circular 'target spots'.", "A white to purplish downy growth is visible on the *underside* of downy mildew lesions, whereas Alternaria's fungal growth is dark and on the lesion surface.", "Systemic downy mildew causes severe stunting and a thickened, upright leaf posture not typical of Alternaria."]}, {"condition_name": "powdery mildew", "condition_id": "sunflower.disease_fungal.powdery_mildew", "key_differences": ["Powdery mildew presents as white, superficial, powdery patches that can be rubbed off, unlike Alternaria's embedded, necrotic tissue.", "Alternaria causes distinct, dark, circular lesions with yellow halos, not a diffuse white coating.", "Powdery mildew typically appears on upper leaf surfaces in drier conditions, while Alternaria thrives in high humidity and causes tissue death."]}], "management": {"cultural": ["Use certified disease-free seed.", "Rotate crops with non-host plants for at least 2-3 years.", "Manage crop residue by tillage to encourage decomposition.", "Optimize plant spacing and row orientation to improve air circulation and reduce leaf wetness duration.", "Control volunteer and wild sunflowers which can act as a disease reservoir."], "biological": ["Use of bio-fungicides containing strains of Bacillus or Trichoderma may offer some suppression."], "chemical": ["Apply foliar fungicides (e.g., strobilurins, triazoles) preventatively or at first sign of disease, especially during flowering stages if conditions are favorable for disease.", "Seed treatments with appropriate fungicides can reduce seed-borne inoculum."], "notes": "An integrated approach combining cultural practices with timely fungicide applications is most effective for managing Alternaria leaf spot."}, "qa_seeds": {"verification_templates": ["Is there a dark, circular spot on the sunflower leaf?", "Does the spot on the leaf have concentric rings like a target?", "Can you see a yellow halo surrounding the dark lesion?", "Are the oldest, lowest leaves the most affected?", "Are multiple spots merging into larger, dead patches?", "Do you see any long, dark streaks on the plant stem?"], "attribute_templates": ["What is the shape of the spots on the leaves?", "What color is the border of the leaf spots?", "Describe the pattern inside the dark lesions.", "Where on the plant are the symptoms located?", "Are the leaves with spots still green, or are they turning yellow and dying?", "What color is the fungal growth, if any, in the center of the spots?"], "diagnosis_templates": ["Based on the target-like spots with yellow halos on the lower leaves, what is the likely disease?", "The sunflower has dark, zonate lesions on its leaves and streaks on the stem. What is the diagnosis?", "What fungal disease is characterized by circular, necrotic spots that cause premature defoliation in sunflowers?"], "counterfactual_templates": ["If the spots were white and powdery instead of dark and necrotic, what would the disease be?", "What would you see on the underside of the leaf if this were downy mildew instead of Alternaria leaf spot?"], "severity_templates": ["What percentage of this leaf's surface is covered by dark spots?", "Based on the defoliation and spread of lesions to the upper leaves, would you rate this infection as mild, moderate, or severe?", "Are the lesions just a few scattered spots, or are they numerous and coalescing?"], "confounders": ["downy_mildew", "powdery_mildew", "wilted"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Use diffuse, even lighting. Avoid harsh, direct sunlight and deep shadows which can obscure key features like concentric rings and yellow halos.", "occlusion_notes": "Ensure the symptomatic leaf and its lesions are clearly visible and not blocked by other leaves or debris. A top-down view of an affected leaf is ideal."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T12:00:00Z", "updated_at": "2023-10-27T12:00:00Z", "sources": ["University extension guides for sunflower diseases", "APS Compendium of Sunflower Diseases", "General plant pathology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "sunflower.disease_fungal.downy_mildew", "aliases": ["sunflower downy mildew"], "crop": {"common_name": "sunflower", "scientific_name": "Helianthus annuus", "family": "Asteraceae"}, "condition": {"common_name": "downy mildew", "scientific_name": "Plasmopara halstedii", "alt_names": [], "pathogen": {"type": "disease_oomycete", "taxonomy": {"kingdom": "Stramenopila", "phylum": "Oomycota", "class": "Oomycetes", "order": "Peronosporales", "family": "Peronosporaceae", "genus": "Plasmopara", "species": "P. halstedii"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["water_splash", "wind_driven_rain", "contaminated_seed", "contaminated_soil"], "overwintering": ["oospores_in_soil", "mycelium_in_infected_seed", "infected_plant_debris"]}, "environmental_risk": {"risk_factors": ["high_soil_moisture_at_planting", "cool_temperatures_post-emergence", "prolonged_leaf_wetness", "high_relative_humidity", "poorly_drained_soils"], "temp_c_day": [15, 22], "temp_c_night": [10, 18], "relative_humidity_pct": [90, 100], "leaf_wetness_hours_threshold": 4}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of total plant leaf area showing symptoms (chlorosis or sporulation).", "moderate": "11-40% of total plant leaf area affected; some stunting may be visible.", "severe": ">40% of leaf area affected; significant stunting, plant may be dying or dead.", "notes": "Severity is assessed based on the percentage of symptomatic leaf area across the entire plant. Stunting is a key indicator of systemic infection and high severity, even if leaf area affected is moderate."}, "symptoms": {"leaves": ["Pale green or yellowish mosaic-like blotches on upper leaf surfaces, often bounded by major veins.", "Lesions are frequently located along the midrib of young leaves.", "White, cottony sporulation is visible on the underside of leaves, directly opposite the upper-surface blotches.", "In systemically infected plants, chlorosis extends from the petiole into the leaf blade.", "Symptomatic leaves may feel thickened or leathery."], "stems": ["Significant stunting (dwarfing) of the plant is a primary symptom of systemic infection.", "The stem may appear thicker than normal relative to the plant's height."], "fruit": [], "roots": ["Root system may be underdeveloped in systemically infected plants."], "whole_plant": ["Stunted, 'dwarfed' appearance compared to healthy neighboring plants.", "The head of systemically infected plants often faces directly upright ('sky-pointing') instead of following the sun."], "signs_microscopic_or_visible": ["White, downy fungal-like growth (sporangiophores) on the lower leaf surface, especially in humid conditions or early morning."]}, "lookalikes": [{"condition_name": "powdery mildew", "condition_id": "sunflower.disease_fungal.powdery_mildew", "key_differences": ["Powdery mildew appears as white, dusty patches primarily on the *upper* leaf surface, while downy mildew sporulation is on the *lower* surface.", "Downy mildew causes distinct, vein-limited chlorotic spots on the upper leaf surface; powdery mildew growth is more superficial and widespread.", "Powdery mildew does not typically cause systemic stunting or 'sky-pointing' heads."]}, {"condition_name": "alternaria leaf spot", "condition_id": "sunflower.disease_fungal.alternaria_leaf_spot", "key_differences": ["Alternaria spots are circular to irregular, dark brown to black, and often have a 'target-like' concentric ring pattern.", "Downy mildew spots are pale green or yellow and angular, bounded by leaf veins.", "Alternaria does not produce white, downy growth on the leaf underside."]}, {"condition_name": "wilted", "condition_id": "sunflower.physiological_symptom.wilted", "key_differences": ["Wilted plants show drooping leaves and stems due to water stress, which can be temporary.", "Downy mildew-stunted plants are rigid and short, not limp or drooping (unless also water-stressed).", "Wilted plants lack the characteristic chlorotic leaf spots and white sporulation of downy mildew."]}], "management": {"cultural": ["Use resistant cultivars.", "Plant certified, disease-free seed.", "Improve soil drainage to avoid waterlogging.", "Practice crop rotation with non-host plants (e.g., cereals, legumes).", "Remove and destroy infected plant debris after harvest."], "biological": ["Some soil microbe-based products may offer suppression, but efficacy varies and is not a primary control method."], "chemical": ["Fungicide seed treatments (e.g., metalaxyl, mefenoxam) are highly effective for preventing systemic infection.", "Foliar fungicides may be used to manage secondary, localized infections, but are ineffective against established systemic infections."], "notes": "Management relies heavily on preventative measures like resistant varieties and seed treatments, as systemic infections cannot be cured once established."}, "qa_seeds": {"verification_templates": ["Is there white, fuzzy growth on the underside of the leaf?", "Are the yellow spots on the leaf angular and bordered by veins?", "Does this plant appear significantly shorter than its neighbors?", "Is the flower head pointing straight up at the sky?", "Can you see pale green blotches along the main leaf vein?"], "attribute_templates": ["What color is the growth on the bottom of the leaf?", "What is the shape of the yellow lesions on the top of the leaf?", "How would you describe the overall height of this plant?", "Where on the leaf is the white, cottony material located?", "What direction is the sunflower head facing?"], "diagnosis_templates": ["Based on the stunted growth and chlorotic leaf spots, what disease is likely present?", "The white growth on the leaf underside opposite yellow spots on top suggests what fungal-like disease?", "What condition causes sunflowers to be stunted and have 'sky-pointing' heads?"], "counterfactual_templates": ["If the white growth were on the top of the leaf and looked dusty, what disease would it be instead?", "If the plant was drooping but had no leaf spots, what would be the issue?", "If the leaf spots were dark brown with concentric rings, what disease would you suspect?"], "severity_templates": ["What percentage of the total leaf area on this plant is showing yellowing?", "How would you rate the severity of the stunting on a mild, moderate, or severe scale?", "Is the downy mildew infection on this plant mild or severe?"], "confounders": ["powdery_mildew", "alternaria_leaf_spot", "wilted", "healthy"]}, "data_requirements": {"min_resolution_px": 1024, "min_roi_fraction": 0.3, "lighting_notes": "Diffuse, even lighting is best. Avoid harsh shadows that can obscure leaf spots. Early morning light can help highlight sporulation due to dew.", "occlusion_notes": "Ensure the symptomatic leaves are not heavily occluded by other leaves. An image showing both the upper (chlorosis) and lower (sporulation) leaf surface is ideal."}, "provenance": {"created_by": "AI Plant Pathologist", "reviewed_by": "Human Expert", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University extension guides for sunflower pathology", "APS Compendium of Sunflower Diseases", "General plant pathology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "sunflower.growth_stage.growth_stage_earlybloom", "aliases": ["R5.1", "Beginning of flowering", "First anthesis"], "crop": {"common_name": "sunflower", "scientific_name": "Helianthus annuus", "family": "Asteraceae"}, "condition": {"common_name": "Early Bloom", "scientific_name": null, "alt_names": ["R5.1", "Beginning of flowering"], "pathogen": {"type": "abiotic", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "growth_stage", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": [], "temp_c_day": [], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "The first few rows of disk florets have opened (anthesis) on the outer edge of the head.", "moderate": "Flowering has progressed inwards, with approximately 10-25% of the disk florets on the head open.", "severe": "Flowering is well-established, with up to 50% of the disk florets open, nearing the mid-bloom (R5.5) stage.", "notes": "Severity describes the progression of flowering across the flower head, defined by the percentage of disk florets that have completed or are in anthesis."}, "symptoms": {"leaves": ["Upper leaves are fully expanded and appear healthy green.", "Lower leaves may begin to naturally senesce (yellow and dry up)."], "stems": ["Stem elongation is complete or nearly complete.", "The stem is firm and supports the fully-formed flower head."], "fruit": ["This structure is the flower head, not a fruit at this stage.", "The large, terminal flower head is fully formed and faces east.", "The outer ray petals ('yellow petals') are fully unfurled, horizontal, and brightly colored.", "The first, outermost ring of central disk florets has opened, revealing stamens and pollen.", "Disk florets further towards the center remain closed and appear dark (e.g., purple, brown).", "The back of the head (bracts) is green and appears healthy."], "roots": [], "whole_plant": ["The plant has reached its maximum or near-maximum height.", "The single, large flower head is the dominant feature at the top of the plant."], "signs_microscopic_or_visible": ["Visible yellow pollen is present on the anthers of the open disk florets."]}, "lookalikes": [{"condition_name": "Wilted", "condition_id": "sunflower.condition.wilted", "key_differences": ["In a wilted plant, the large leaves and ray petals will be drooping, limp, and flaccid.", "The peduncle (neck) supporting the flower head may bend or droop from water stress, which is not a normal feature of the bloom stage.", "Wilting affects the entire plant's turgor, whereas early bloom is a specific developmental stage of a healthy plant."]}], "management": {"cultural": [], "biological": [], "chemical": [], "notes": "This is a critical developmental stage, not a condition to be managed. It is the target window for ensuring pollination and for protective fungicide applications against head diseases (e.g., Sclerotinia head rot, Rhizopus head rot). Maintaining adequate soil moisture is crucial to prevent yield loss from water stress during this period."}, "qa_seeds": {"verification_templates": ["Is this a sunflower at the beginning of its flowering stage?", "Are the yellow ray petals fully open on this sunflower head?", "Can you see any of the small, central disk florets open and showing pollen?", "Does this image show a sunflower at the R5.1 reproductive stage?", "Is this plant in early bloom?"], "attribute_templates": ["Are the central disk florets open?", "What percentage of the disk florets are open?", "Are the ray petals fully extended horizontally?", "Is there visible pollen on the flower head?", "What direction is the flower head facing?", "Are the leaves and petals turgid or drooping?"], "diagnosis_templates": ["What growth stage is this sunflower in?", "Is this sunflower in a vegetative, bud, or flowering stage?", "Based on the state of the ray petals and disk florets, diagnose the plant's reproductive stage."], "counterfactual_templates": ["If all the ray petals were still pointed upwards around the center, would this be early bloom?", "If the central disk was completely brown and dry with no open florets, could this be the early bloom stage?", "If the leaves and petals were severely drooping, would you still classify this as a healthy early bloom stage?"], "severity_templates": ["How would you rate the progression of flowering: just beginning, moderate, or advanced?", "What percentage of the flower head's central disk is in bloom?", "Is this closer to the very first flower opening (mild) or about half the head being open (severe)?"], "confounders": ["Could this be a mature bud just before opening?", "Is it possible this plant is wilted?", "How can you differentiate this from a later flowering stage?"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Diffuse, even lighting is ideal. Avoid hard shadows across the flower head, which can obscure the state of the disk florets.", "occlusion_notes": "The flower head, particularly the central disk and ray petals, must be clearly visible and not significantly occluded by leaves or other objects."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27", "updated_at": "2023-10-27", "sources": ["University Extension Guides for Sunflower Production", "Compendium of Sunflower Diseases and Insects, APS Press", "Crop-specific staging guides (e.g., NDSU Extension)"]}}
+{"schema_version": "1.0.0", "disease_id": "sunflower.growth_stage.growth_stage_maturebud", "aliases": ["R4 stage", "Pre-bloom", "Button stage"], "crop": {"common_name": "Sunflower", "scientific_name": "Helianthus annuus", "family": "Asteraceae"}, "condition": {"common_name": "Mature Bud", "scientific_name": null, "alt_names": ["R4", "Immature flower"], "pathogen": {"type": "Physiological", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "growth_stage", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": [], "temp_c_day": [], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Not applicable. Stage is either present or not.", "moderate": "Not applicable.", "severe": "Not applicable.", "notes": "Severity is not applicable to a growth stage. This rubric is used to confirm the presence of the 'Mature Bud' (R4) stage."}, "symptoms": {"leaves": ["Upper leaves are fully expanded.", "Leaves immediately below the bud may appear to cup around it."], "stems": ["Stem has reached near-maximum height.", "Peduncle (flower stalk) is visibly elongating, separating the bud from the uppermost leaves."], "fruit": ["The terminal flower bud is fully formed but remains completely closed.", "The bud is large, typically greater than 2 cm in diameter.", "Green, pointed bracts are tightly layered, completely enclosing the developing flower parts.", "The overall shape of the bud is globe-like or resembles a small artichoke.", "The face of the bud is still flat or slightly convex.", "No yellow ray petals are visible."], "roots": [], "whole_plant": ["Plant is tall and robust, in the final vegetative stage before flowering.", "The large, closed terminal bud is the dominant feature at the top of the plant."], "signs_microscopic_or_visible": []}, "lookalikes": [], "management": {"cultural": ["Ensure adequate and consistent soil moisture as water demand is very high.", "Monitor for insect pests that target developing heads, such as head-clipping weevils or lygus bugs.", "Avoid nutrient deficiencies, especially boron, which is critical for flower development."], "biological": [], "chemical": ["Consider a preventative fungicide application for diseases like Sclerotinia head rot or Phomopsis if conditions are highly favorable for infection, following pre-bloom application guidelines."], "notes": "Management at this stage is critical for protecting the yield potential stored in the developing head."}, "qa_seeds": {"verification_templates": ["Is this sunflower in the mature bud stage?", "Can you see a large, closed flower head at the top of the plant?", "Are the green bracts completely enclosing the bud with no yellow petals showing?", "Does the plant appear to be just about to flower?", "Is this plant at the R4 growth stage?"], "attribute_templates": ["What is the shape of the flower bud?", "Are any yellow ray petals visible?", "Describe the bracts on the flower head.", "Is the flower bud larger or smaller than a golf ball?", "Is the flower stalk (peduncle) elongated?", "Is the face of the bud flat or open?"], "diagnosis_templates": ["What is the growth stage of this sunflower?", "Is this a young bud, mature bud, or early bloom stage?", "Based on the large, closed bud, what is the plant's developmental stage?"], "counterfactual_templates": ["If you could see yellow petals starting to emerge, what stage would it be?", "If the bud was much smaller and star-shaped, what stage would it have been?"], "severity_templates": ["Does this appear to be a healthy, well-developed mature bud?", "Is the development of this plant typical for the pre-bloom stage?"], "confounders": ["growth_stage_youngbud", "growth_stage_earlybloom"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Good, even frontal lighting is required to clearly see the texture and structure of the bracts. Avoid strong backlighting.", "occlusion_notes": "The terminal bud must be clearly visible and not significantly obscured by leaves, other plants, or objects."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University Extension Sunflower Production Guides", "Schneiter and Miller Sunflower Growth Staging System", "APS Compendium of Sunflower Diseases and Insects"]}}
+{"schema_version": "1.0.0", "disease_id": "sunflower.growth_stage.growth_stage_youngbud", "aliases": ["R2 stage", "immature bud", "button stage"], "crop": {"common_name": "sunflower", "scientific_name": "Helianthus annuus", "family": "Asteraceae"}, "condition": {"common_name": "Young Bud", "scientific_name": "", "alt_names": ["R2 Stage", "Immature Bud Stage"], "pathogen": {"type": "abiotic", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "growth_stage", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": [], "temp_c_day": [], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Bud is just visible between the uppermost leaves, resembling a small, multi-pointed star.", "moderate": "Bud has clearly emerged from the whorl of leaves, is still small (<2 cm from center to bract tip), and pointed.", "severe": "Bud is well-formed and rounded, but bracts are still tightly closed and the head has not yet begun to bend or face east.", "notes": "Severity describes the progression *within* the R2 stage, from initial emergence (mild) to just before the R3 (mature bud) stage begins (severe). This is a measure of development, not damage."}, "symptoms": {"leaves": ["Uppermost leaves are unfolding to reveal the floral bud at the plant's apex.", "Leaves below the bud are fully expanded, green, and turgid in a healthy plant."], "stems": ["Main stem is sturdy and has reached or is near its maximum height.", "The top of the stem, or peduncle, is still straight and holding the bud upright."], "fruit": ["No fruit (achenes) or seeds are present.", "No ray flowers (petals) or disk flowers are visible."], "roots": [], "whole_plant": ["A single, small, star-shaped floral bud is visible at the top of the plant.", "The bud is enclosed by immature, green, tightly-packed bracts.", "The bud is less than 2 cm as measured from the center to the tip of the surrounding bracts.", "The plant is in a rapid vegetative growth phase."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "Wilted", "condition_id": "sunflower.disorder.wilted", "key_differences": ["Wilted plants have drooping, flaccid leaves due to water stress, which is distinct from the turgid leaves of a healthy plant.", "The entire top of the plant, including the bud, may hang limply, whereas a healthy young bud is held upright.", "Wilting is a stress condition, not a normal developmental stage."]}], "management": {"cultural": ["Ensure adequate and consistent soil moisture as water demand is very high during bud development.", "Complete any final nitrogen fertilizer applications before this stage to avoid delaying maturity.", "Monitor for pests such as sunflower moth, which may lay eggs on developing buds."], "biological": [], "chemical": ["This is a key window for applying fungicides to protect against head and foliar diseases if conditions are favorable for infection.", "Avoid post-emergent herbicide applications as the plant is extremely sensitive to injury at this stage."], "notes": "Management at the R2 stage focuses on protecting the developing head and ensuring the plant has sufficient resources (water, nutrients) to maximize seed set and yield potential."}, "qa_seeds": {"verification_templates": ["Is a small, star-shaped bud visible at the top of this sunflower?", "Can you see a floral bud nestled between the uppermost leaves?", "Does this image show a sunflower in the young bud or R2 growth stage?", "Are the bracts of the bud still tightly closed with no petals showing?", "Is the flower head small and held upright on the stem?"], "attribute_templates": ["What is the shape of the bud at the plant's apex?", "Are the bracts surrounding the bud open or closed?", "Are any yellow ray flowers or petals visible on the bud?", "Describe the orientation of the flower head.", "How large is the bud relative to the surrounding leaves?"], "diagnosis_templates": ["What growth stage is this sunflower in?", "Based on the small, enclosed bud, what is the developmental stage of this plant?", "Is this plant in a vegetative, flowering, or seed development stage?"], "counterfactual_templates": ["If the yellow petals were unfurled, what stage would it be?", "If the bud was larger and bending towards the east, what stage would that be?", "What would the leaves look like if this plant were suffering from drought stress?"], "severity_templates": ["Is the bud just barely visible or has it fully emerged from the leaves?", "How developed is this young bud: just emerging, clearly visible, or well-formed but still closed?"], "confounders": ["Could this be the mature bud stage? Why or why not?", "Is it possible this is early bloom, or are the petals still completely hidden?", "Are the leaves drooping due to wilting, or is that just their normal posture?"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Good, even lighting is required. Strong backlighting or harsh shadows can obscure the shape and details of the small bud.", "occlusion_notes": "The bud at the plant apex must be clearly visible and not significantly occluded by upper leaves, other plants, or foreign objects."}, "provenance": {"created_by": "Expert Plant Pathologist and VQA Dataset Designer", "reviewed_by": "Expert Agronomist", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["University Extension Guides for Sunflower Production", "APS Compendia of Plant Diseases", "Schneiter and Miller, 1981 - Description of Sunflower Growth Stages"]}}
+{"schema_version": "1.0.0", "disease_id": "sunflower.healthy.healthy", "aliases": ["normal", "asymptomatic", "no disease"], "crop": {"common_name": "sunflower", "scientific_name": "Helianthus annuus", "family": "Asteraceae"}, "condition": {"common_name": "Healthy", "scientific_name": null, "alt_names": [], "pathogen": {"type": "none", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "healthy", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": [], "temp_c_day": [], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "No visible symptoms of stress or disease.", "moderate": "Not applicable.", "severe": "Not applicable.", "notes": "This is a binary state; the plant is either healthy or it is not. Any deviation from the 'mild' description would be classified under a different condition (e.g., a specific disease or stressor)."}, "symptoms": {"leaves": ["Uniformly green color, varying from light to dark green depending on age and variety.", "Turgid, firm, and appropriately expanded for the growth stage.", "Absence of spots, lesions, chlorosis, necrosis, or pustules.", "Surfaces are clean, without any powdery, sooty, or fuzzy growth.", "Leaf margins are intact and show no signs of scorching or irregular patterns."], "stems": ["Sturdy, erect, and capable of supporting the leaves and head.", "Typically green to light-green and may be covered in coarse hairs (trichomes).", "No cankers, galls, streaks, or discoloration."], "fruit": ["The developing head (capitulum) is symmetrical and well-formed.", "Bracts surrounding the head are green and show no signs of necrosis or spotting.", "Florets appear vibrant and normal for the specific growth stage (e.g., yellow ray florets, disc florets not discolored)."], "roots": [], "whole_plant": ["Exhibits vigorous growth appropriate for its age and variety.", "Maintains an upright, turgid posture without drooping or wilting."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "wilted", "condition_id": "sunflower.abiotic.wilted", "key_differences": ["Healthy leaves are turgid and held upright or outwards; wilted leaves are limp, drooping, and may appear flaccid.", "The neck (peduncle) of a healthy plant is strong and supports the head; in a wilted plant, it may bend or droop significantly.", "Wilting is a systemic response to water stress, affecting the entire plant's posture, whereas a healthy plant is uniformly erect."]}, {"condition_name": "powdery_mildew", "condition_id": "sunflower.fungal.powdery_mildew", "key_differences": ["Healthy leaves have a clean, uniform green surface; powdery mildew presents as distinct white, talc-like patches on leaf surfaces.", "The white mycelial growth of powdery mildew can often be wiped off, revealing the green leaf tissue underneath, which is not a feature of a healthy leaf.", "A healthy plant has no surface growth, whereas powdery mildew is a clear sign (fungal growth) on the plant."]}, {"condition_name": "alternaria_leaf_spot", "condition_id": "sunflower.fungal.alternaria_leaf_spot", "key_differences": ["Healthy leaves are uniformly green and unblemished; Alternaria causes distinct dark brown to black circular spots.", "Spots from Alternaria often have a characteristic 'target-like' or zonate pattern, which is completely absent on healthy leaves.", "Affected leaves may show yellow halos (chlorosis) around the spots, while healthy leaves maintain a consistent green color."]}], "management": {"cultural": ["Maintain optimal soil moisture through consistent and appropriate irrigation.", "Ensure adequate plant spacing to promote good air circulation and light penetration.", "Provide balanced nutrition based on soil tests to support vigorous growth.", "Practice crop rotation to avoid soil-borne pathogen buildup."], "biological": [], "chemical": [], "notes": "Management for a healthy plant focuses on preventative care and maintaining optimal growing conditions to minimize stress and prevent disease onset."}, "qa_seeds": {"verification_templates": ["Is this sunflower healthy?", "Are there any visible symptoms of disease or stress on the plant?", "Does this plant appear normal and asymptomatic?", "Confirm that the leaves are free of spots, discoloration, and powdery growth.", "Is the plant's posture upright and turgid?"], "attribute_templates": ["Describe the color of the leaves.", "What is the posture of the plant?", "Are the leaves turgid or drooping?", "Is there any residue or growth on the leaf surfaces?", "Describe the condition of the stem.", "Are there any spots or lesions on the leaves?"], "diagnosis_templates": ["What is the condition of this sunflower?", "Is this plant healthy or does it show signs of a disorder?", "Based on the visual evidence, provide a diagnosis for this plant."], "counterfactual_templates": ["What would the leaves look like if this plant had powdery mildew?", "If this plant were wilted, how would its appearance differ?", "What visual signs would be present if this plant had Alternaria leaf spot?"], "severity_templates": ["How severe is the condition shown?", "On a scale from healthy to severe, how would you rate this plant?", "Are there any symptoms present to assess for severity?"], "confounders": ["wilted", "alternaria_leaf_spot", "powdery_mildew"]}, "data_requirements": {"min_resolution_px": 480, "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse lighting is preferred. Avoid harsh shadows or overexposure that can obscure leaf color and texture.", "occlusion_notes": "The main leaves, stem, and head (if present) should be clearly visible. Avoid significant occlusion from other plants or objects."}, "provenance": {"created_by": "expert_plant_pathologist_vqa_designer", "reviewed_by": "expert_plant_pathologist_vqa_designer", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["General university extension guides for sunflower production", "Compendium of Sunflower Diseases and Insects, APS Press"]}}
+{"schema_version": "1.0.0", "disease_id": "sunflower.disease_fungal.powdery_mildew", "aliases": ["sunflower powdery mildew"], "crop": {"common_name": "sunflower", "scientific_name": "Helianthus annuus", "family": "Asteraceae"}, "condition": {"common_name": "powdery mildew", "scientific_name": "Golovinomyces cichoracearum", "alt_names": [], "pathogen": {"type": "fungus", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Leotiomycetes", "order": "Erysiphales", "family": "Erysiphaceae", "genus": "Golovinomyces", "species": "cichoracearum"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["Wind-dispersed conidia"], "overwintering": ["Infected plant debris", "On volunteer sunflowers or alternate weed hosts", "As chasmothecia (sexual fruiting bodies) on plant residue"]}, "environmental_risk": {"risk_factors": ["High relative humidity (without free water on leaves)", "Moderate temperatures", "Dense plant canopies with poor air circulation", "Shaded conditions", "Excessive nitrogen fertilization"], "temp_c_day": [20, 26], "temp_c_night": [], "relative_humidity_pct": [70, 95], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of the upper leaf surface is covered by sparse, white mycelial colonies.", "moderate": "11-40% of the upper leaf surface is covered; colonies are larger and beginning to coalesce.", "severe": ">40% of the upper leaf surface is covered by a dense mat of white mycelium, often accompanied by underlying leaf chlorosis or necrosis.", "notes": "Severity is typically assessed on the most affected leaves, which are usually in the lower to mid-canopy. The percentage refers to the area of the leaf's upper surface obscured by the white fungal growth."}, "symptoms": {"leaves": ["Begins as small, circular, white spots with a talcum-powder-like appearance on upper leaf surfaces.", "Spots expand and merge (coalesce) to form a dense, white-to-light-gray mat of mycelium.", "Symptoms are most prominent on the upper leaf surface, but can appear on the lower surface in severe cases.", "Infection typically starts on older, lower leaves and progresses up the plant.", "Underlying leaf tissue may turn yellow (chlorotic) as the infection progresses.", "In severe cases, infected leaves can become brittle, curl, and senesce prematurely."], "stems": ["White mycelial growth can occasionally be observed on petioles and upper stems."], "fruit": ["Infection of the bracts surrounding the flower head can occur, but direct infection of the head or seeds is uncommon."], "roots": [], "whole_plant": ["Overall plant vigor may be reduced, but severe stunting is rare unless infection occurs very early."], "signs_microscopic_or_visible": ["Visible white, powdery fungal growth (mycelium and conidia) that can be rubbed off the leaf surface.", "Late in the season, tiny black specks (chasmothecia, the sexual fruiting bodies) may be visible embedded in the white mycelial mats."]}, "lookalikes": [{"condition_name": "downy mildew", "condition_id": "sunflower.disease_fungal.downy_mildew", "key_differences": ["Location: Powdery mildew signs are white and primarily on the *upper* leaf surface; downy mildew signs are grayish-purple and on the *lower* surface.", "Lesion Type: Powdery mildew forms superficial, circular white spots; downy mildew causes pale green/yellow, angular lesions on the upper surface, bounded by veins.", "Texture: Powdery mildew looks like flour; downy mildew has a fuzzy or downy texture.", "Moisture: Powdery mildew is inhibited by free water on leaves; downy mildew requires leaf wetness to sporulate."]}, {"condition_name": "alternaria leaf spot", "condition_id": "sunflower.disease_fungal.alternaria_leaf_spot", "key_differences": ["Color and Type: Alternaria causes dark brown to black necrotic lesions; powdery mildew is a white, superficial fungal growth.", "Pattern: Alternaria lesions often have a characteristic 'target-like' pattern of concentric rings; powdery mildew growth is uniform.", "Effect on Tissue: Alternaria lesions are dead tissue that can create a 'shot-hole' effect; powdery mildew grows on top of living tissue, causing it to yellow later."]}], "management": {"cultural": ["Plant resistant or tolerant sunflower hybrids.", "Optimize plant spacing and row orientation to promote air circulation and reduce humidity within the canopy.", "Avoid excessive nitrogen fertilization, which promotes lush, susceptible growth.", "Manage volunteer sunflowers and weed hosts that can harbor the pathogen."], "biological": ["Applications of bio-fungicides containing *Bacillus subtilis* or neem oil may provide some suppression."], "chemical": ["Apply foliar fungicides (e.g., strobilurins, DMIs, sulfur-based products) when conditions are favorable or at first sign of disease.", "Ensure thorough spray coverage, especially in the lower canopy where the disease starts.", "Rotate fungicide modes of action to mitigate the risk of developing fungicide resistance."], "notes": "Fungicide applications are most effective when applied preventatively or early in the disease cycle. Economic benefit is greatest when disease appears before or during flowering on susceptible hybrids."}, "qa_seeds": {"verification_templates": ["Is there a white, flour-like substance on the top of the sunflower leaves?", "Does the image show white, circular patches on the leaves?", "Can you confirm the presence of a powdery growth on the foliage?", "Are the lower, older leaves coated in a white substance?", "Does the white material appear to be on the surface of the leaf, rather than part of the tissue?"], "attribute_templates": ["What color is the fungal growth on the leaves?", "Is the white, powdery growth on the upper or lower surface of the leaf?", "Describe the distribution of the white spots: are they small and scattered or large and merged?", "Is there any yellowing or browning of the leaf tissue underneath the white growth?", "Are there any tiny black dots visible within the white patches?"], "diagnosis_templates": ["What disease is characterized by a white, powdery coating on sunflower leaves?", "Based on the superficial, white mycelial growth, what is the likely disease?", "A sunflower has white, flour-like spots on its upper leaves. What is the diagnosis?"], "counterfactual_templates": ["If the spots were dark brown with target-like rings, what disease would it be instead?", "What if the fuzzy growth was grayish and only on the underside of yellow, angular lesions?"], "severity_templates": ["What percentage of the leaf's upper surface is covered by powdery mildew?", "Based on the extent of the white growth, would you classify this infection as mild, moderate, or severe?"], "confounders": ["Could this be downy mildew?", "Is it possible this is Alternaria leaf spot?", "Could this be pesticide residue instead of a disease?"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.4, "lighting_notes": "Use diffuse, even lighting. Avoid harsh, direct sunlight which can cause glare on the white mycelium, making it difficult to distinguish from reflections.", "occlusion_notes": "The upper surface of one or more symptomatic leaves should be clearly visible and in focus. Avoid images where the primary symptoms are obscured by other leaves or shadows."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["University extension guides for sunflower disease management", "APS Compendium of Sunflower Diseases and Insects", "General plant pathology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "sunflower.physiological_symptom.wilted", "aliases": ["drought stress", "water stress", "drooping", "heat stress"], "crop": {"common_name": "sunflower", "scientific_name": "Helianthus annuus", "family": "Asteraceae"}, "condition": {"common_name": "wilted", "scientific_name": "", "alt_names": ["drought stress", "water stress"], "pathogen": {"type": "abiotic", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "physiological_symptom", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Low soil moisture", "High ambient temperatures", "High winds increasing transpiration", "Low relative humidity", "Soil compaction limiting root growth"], "temp_c_day": [28, 40], "temp_c_night": [], "relative_humidity_pct": [10, 50], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Slight drooping of upper leaves and petioles, typically during the hottest part of the day. Plant fully recovers turgor overnight.", "moderate": "Most leaves on the plant are visibly drooping. The flower head (peduncle) may begin to bend downwards. Plant may not fully recover overnight.", "severe": "All leaves are limp and hanging vertically. The stem is bent, and the flower head hangs down completely. Lower leaves may be yellow or brown (senesced). Permanent damage is likely.", "notes": "Severity is assessed based on the degree of turgor loss across the entire plant, including leaves, petioles, and the upper stem/peduncle. A value of 0 for leaf wetness threshold indicates it is not a risk factor for this abiotic condition."}, "symptoms": {"leaves": ["Leaves lose rigidity and hang limply from the petiole.", "Leaf blades appear flaccid and may curl inwards at the margins.", "Petioles droop, causing leaves to hang down close to the main stem.", "In prolonged stress, lower leaves turn yellow, then brown and dry, starting from the margins."], "stems": ["The upper portion of the stem, particularly the peduncle supporting the flower head, bends or hooks downwards.", "In severe cases, the entire main stem may lose rigidity and bend."], "fruit": ["The flower head faces downwards or hangs limply, a condition known as 'nodding'."], "roots": [], "whole_plant": ["The entire plant has a drooping, deflated appearance.", "Growth is stunted if water stress is chronic during vegetative stages."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "growth_stage_maturebud", "condition_id": "sunflower.growth_stage.maturebud", "key_differences": ["Natural drooping involves only the heavy flower head bending downwards; leaves remain turgid and angled correctly.", "In wilting, both the leaves and the flower head droop due to water loss.", "Natural drooping is a permanent change due to weight, whereas wilting can be reversed with watering if not severe."]}, {"condition_name": "downy_mildew", "condition_id": "sunflower.fungal_disease.downy_mildew", "key_differences": ["Downy mildew causes distinct yellow (chlorotic) spots on the upper leaf surface, often angular and vein-limited.", "A white, fuzzy fungal growth is often visible on the underside of leaves with downy mildew, which is absent in wilting.", "Wilting from downy mildew is a systemic symptom often accompanied by severe stunting, not just a temporary loss of turgor."]}], "management": {"cultural": ["Provide consistent and adequate irrigation, especially during bud formation and flowering.", "Improve soil structure and water-holding capacity by incorporating organic matter.", "Use mulch to reduce soil moisture evaporation.", "Control weeds to minimize competition for water resources.", "Select drought-tolerant sunflower varieties where appropriate."], "biological": [], "chemical": [], "notes": "Management is entirely preventative and focuses on ensuring adequate water availability to the plant's root system."}, "qa_seeds": {"verification_templates": ["Does this sunflower plant appear to be wilting?", "Are the leaves of the plant drooping or hanging limply?", "Can you confirm the presence of water stress symptoms on this plant?", "Is the plant losing its turgidity?", "Does the sunflower look dehydrated?"], "attribute_templates": ["What part of the plant is drooping?", "Are the leaves, stem, or flower head wilted?", "Describe the posture of the leaves.", "Is the flower head pointing downwards?", "Are any of the lower leaves yellow or brown?", "Does the wilting affect the entire plant or just the upper portion?"], "diagnosis_templates": ["What physiological condition is causing the plant to droop?", "Is this plant healthy or is it wilted?", "Based on the limp leaves and bent stem, what is the issue with this sunflower?"], "counterfactual_templates": ["If the leaves were firm and angled towards the sun, would the plant still be considered wilted?", "If only the heavy flower head was bent over but the leaves were healthy, could this be a normal growth stage instead of wilting?"], "severity_templates": ["How severe is the wilting: mild, moderate, or severe?", "Based on how much of the plant is drooping, what is the severity level?", "Is this mild wilting that might recover overnight, or severe wilting indicating permanent damage?"], "confounders": ["Is this plant wilting due to water stress, or is the head just drooping naturally because of its weight?", "Are the symptoms on the leaves caused by wilting or by a disease like downy mildew?"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.4, "lighting_notes": "Diffuse, even lighting is ideal. Avoid harsh, direct sunlight that creates strong shadows, which can obscure the true posture of leaves and stems.", "occlusion_notes": "A clear view of the upper two-thirds of the plant is necessary to distinguish wilting from natural head drooping. Occlusion from neighboring plants can make assessment difficult."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University extension guides on sunflower production", "APS Compendium of Sunflower Diseases and Insects"]}}
+{"schema_version": "1.0.0", "disease_id": "tea.disease_fungal.algal_leaf_spot", "aliases": ["red rust of tea", "algal leaf disease", "Cephaleuros leaf spot"], "crop": {"common_name": "tea", "scientific_name": "Camellia sinensis", "family": "Theaceae"}, "condition": {"common_name": "algal leaf spot", "scientific_name": "Cephaleuros virescens", "alt_names": ["red rust"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Plantae", "phylum": "Chlorophyta", "class": "Ulvophyceae", "order": "Trentepohliales", "family": "Trentepohliaceae", "genus": "Cephaleuros", "species": "virescens"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": ["wind-driven rain", "water splash"], "dispersal": ["Spores (zoospores) are dispersed by rain splash and wind.", "Contaminated pruning tools can spread the pathogen."], "overwintering": ["As mycelium-like filaments within lesions on living leaves and stems."]}, "environmental_risk": {"risk_factors": ["High humidity and frequent rainfall", "Poor air circulation within the canopy", "Low soil fertility or plant stress", "Shaded growing conditions"], "temp_c_day": [25, 32], "temp_c_night": [], "relative_humidity_pct": [80, 100], "leaf_wetness_hours_threshold": 8}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "Less than 5% of the total leaf area of the plant is affected by spots.", "moderate": "5-25% of the total leaf area is affected, with multiple spots per leaf on many leaves.", "severe": "More than 25% of the total leaf area is affected, with spots coalescing and causing premature leaf drop.", "notes": "Severity is estimated by visually assessing the percentage of leaf surface covered by algal spots across the entire plant or a representative branch. The raised, velvety texture is a key characteristic of the lesions being counted."}, "symptoms": {"leaves": ["Circular to irregular spots, primarily on the upper leaf surface.", "Lesions are slightly raised from the leaf surface.", "Spots have a distinct velvety or felt-like texture.", "Color is initially greenish-gray, turning yellowish-brown to orange-red.", "A narrow, necrotic border may form around the spot.", "In severe cases, spots can coalesce, leading to leaf yellowing and premature defoliation.", "The algal growth is superficial, penetrating only the cuticle and epidermis."], "stems": ["On young, green stems, similar raised, velvety, reddish-brown lesions can occur.", "Stem lesions can girdle the stem, causing dieback of the shoot tip."], "fruit": [], "roots": [], "whole_plant": ["Reduced plant vigor and stunted growth in heavily infected plants.", "Overall thinning of the canopy due to defoliation."], "signs_microscopic_or_visible": ["Visible sign is the dense, felt-like mat of algal filaments (thallus) on the leaf surface.", "Under magnification, reddish, hair-like structures (sporangiophores) may be visible rising from the spot."]}, "lookalikes": [{"condition_name": "leaf_scab", "condition_id": "tea.disease_fungal.leaf_scab", "key_differences": ["Texture: Scab lesions are typically corky or scaly, not velvety or felt-like.", "Appearance: Scab spots often have a slightly depressed or sunken center with a raised, dark margin.", "Color: Leaf scab is usually grayish-brown to dark brown, lacking the distinct orange-red hue of mature algal spots."]}, {"condition_name": "red_leaf_spot", "condition_id": "tea.disease_fungal.red_leaf_spot", "key_differences": ["Elevation: Red leaf spots are flat or slightly sunken, not raised from the leaf surface.", "Texture: Lesions lack the characteristic velvety or felt-like texture of algal spot.", "Size: Red leaf spots are often smaller and more numerous than algal spots.", "Color: While reddish, they are typically more purple-red or dark red and lack the greenish-gray initial phase."]}, {"condition_name": "gray_blight", "condition_id": "tea.disease_fungal.gray_blight", "key_differences": ["Size & Shape: Gray blight lesions are much larger, often starting at the tip or margin and covering a significant portion of the leaf.", "Appearance: Lesions are distinctly zonate, with concentric rings (target-like pattern), which is absent in algal spot.", "Color: The center of gray blight lesions is grayish-white to light brown, not reddish-orange.", "Texture: Gray blight lesions are papery and dry, not raised and velvety."]}], "management": {"cultural": ["Improve air circulation through proper pruning and spacing of plants.", "Manage shade to reduce humidity and leaf wetness duration.", "Maintain balanced plant nutrition to improve host resistance.", "Remove and destroy heavily infected leaves and pruned branches."], "biological": ["Promoting a healthy soil microbiome can enhance overall plant health and resilience."], "chemical": ["Application of copper-based fungicides (e.g., copper oxychloride, Bordeaux mixture) can be effective.", "Fungicides should be applied preventatively during periods of high risk (warm, wet weather)."], "notes": "Management should focus on cultural practices to alter the microenvironment, making it less favorable for the alga. Chemical control is typically a secondary measure for severe outbreaks."}, "qa_seeds": {"verification_templates": ["Is there a raised, velvety spot on the leaf surface?", "Does the leaf exhibit one or more circular, felt-like lesions?", "Can you confirm the presence of greenish-gray to reddish-orange spots?", "Are the spots on the leaf slightly elevated?", "Is the texture of the lesion fuzzy or velvety to the touch?", "Does the spot appear to be growing on top of the leaf cuticle?"], "attribute_templates": ["What is the texture of the spots on the leaf?", "What color are the raised lesions?", "Are the spots flat or raised?", "Describe the shape and margin of the leaf spots.", "Where on the leaf are the spots primarily located?", "How are the spots distributed on the leaf?"], "diagnosis_templates": ["What condition causes raised, reddish, velvety spots on tea leaves?", "Based on the felt-like texture and circular shape of the lesions, what is the likely disease?", "The plant shows signs of 'red rust'. What is the scientific name for this condition?"], "counterfactual_templates": ["If the spots were large with concentric rings and a gray center, could it still be algal leaf spot?", "If the lesions were corky and caused the leaf to curl, what other disease might it be?", "If the spots were sunken and purple, would the diagnosis of algal leaf spot be correct?"], "severity_templates": ["What percentage of the leaf surface is covered by the velvety algal spots?", "How would you rate the severity of the algal leaf spot infection on a scale of mild, moderate, or severe?", "Are the algal spots sparse or are they beginning to merge together?"], "confounders": ["leaf_scab", "red_leaf_spot", "gray_blight"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Diffuse, even lighting is best. Avoid harsh shadows or direct sunlight that can wash out the color and obscure the characteristic velvety texture of the lesions.", "occlusion_notes": "The primary lesions of interest should be clearly visible and not obscured by other leaves, branches, or debris. A clear view of the lesion's surface texture is critical for diagnosis."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University extension guides for tea cultivation", "APS Compendium of Tea Diseases and Pests", "Peer-reviewed plant pathology journals", "CABI Invasive Species Compendium"]}}
+{"schema_version": "1.0.0", "disease_id": "tea.disease_fungal.gray_blight", "aliases": ["Pestalotiopsis leaf spot", "Grey leaf spot", "Grey blight"], "crop": {"common_name": "tea", "scientific_name": "Camellia sinensis", "family": "Theaceae"}, "condition": {"common_name": "gray blight", "scientific_name": "Pestalotiopsis theae", "alt_names": ["Grey leaf blight"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Sordariomycetes", "order": "Xylariales", "family": "Amphisphaeriaceae", "genus": "Pestalotiopsis", "species": "theae"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": ["rain splash", "wind"], "dispersal": ["conidia (asexual spores)"], "overwintering": ["infected leaves", "plant debris on the ground", "cankers on stems"]}, "environmental_risk": {"risk_factors": ["high humidity", "prolonged leaf wetness", "mechanical injury (e.g., hail, pruning wounds)", "sun scorch", "nutrient stress"], "temp_c_day": [20, 30], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 10}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area is affected. Lesions are small, distinct, and mostly on older leaves.", "moderate": "11-30% of leaf area is affected. Lesions are larger and may begin to coalesce.", "severe": ">30% of leaf area is affected. Lesions have merged into large necrotic patches, potentially leading to defoliation.", "notes": "Severity is assessed on the most affected leaves of a plant to represent the peak disease expression. It measures the direct loss of photosynthetic area."}, "symptoms": {"leaves": ["Initial spots are small, yellowish-brown, and circular to slightly irregular.", "Mature lesions develop a distinct grayish-white or light brown center.", "A prominent, dark brown to purplish border surrounds the necrotic center.", "Lesions often exhibit concentric rings, giving a 'target' or 'zonate' appearance.", "Tiny, black, pinhead-sized dots (acervuli) are often visible within the gray center.", "The central tissue of the lesion becomes thin and papery.", "Lesions may coalesce to form large, irregular necrotic blotches.", "In some cases, the dead central tissue falls out, creating a 'shot-hole' effect.", "Symptoms are typically more prevalent on older, mature leaves."], "stems": ["In severe infections on young shoots, small, sunken, dark lesions or cankers can form."], "fruit": [], "roots": [], "whole_plant": ["Reduced plant vigor and overall poor growth in cases of severe infection.", "Premature defoliation can occur when disease pressure is high."], "signs_microscopic_or_visible": ["Presence of black, erumpent acervuli (fungal fruiting bodies) in the center of mature lesions, sometimes arranged in concentric rings."]}, "lookalikes": [{"condition_name": "leaf blight", "condition_id": "tea.disease_fungal.leaf_blight", "key_differences": ["Leaf blight lesions are often larger, more irregular, and start from the leaf tip or margin, whereas gray blight spots are more circular and can appear anywhere.", "Gray blight has a more distinct gray/white center and dark border compared to the more uniform brown necrosis of many leaf blights.", "Concentric rings ('target spots') are a classic feature of gray blight, which is less common in leaf blight."]}, {"condition_name": "algal leaf spot", "condition_id": "tea.disease_other.algal_leaf_spot", "key_differences": ["Algal spots are raised, superficial, and have a velvety texture, typically appearing orange-red or grayish-green.", "Gray blight lesions are sunken (necrotic), not raised, and are integral to the leaf tissue.", "Algal spots do not have the characteristic gray center with a dark border or concentric rings."]}, {"condition_name": "helopeltis_damage", "condition_id": "tea.pest_insect.helopeltis_damage", "key_differences": ["Helopeltis damage (from tea mosquito bug) appears as angular, dark brown to black necrotic spots without a gray center or distinct border.", "Insect damage often causes significant distortion, puckering, or curling of young, tender leaves, which is not a primary symptom of gray blight.", "Helopeltis feeding spots are numerous and clustered, reflecting the insect's probing, while gray blight lesions are typically fewer and more developed."]}], "management": {"cultural": ["Prune bushes to improve air circulation and sunlight penetration, which reduces leaf wetness duration.", "Remove and burn or bury infected leaves and pruned debris to reduce inoculum.", "Maintain balanced soil fertility and pH to ensure plant vigor.", "Avoid mechanical damage to plants during field operations."], "biological": ["Application of bio-control agents like *Trichoderma* spp. can help suppress pathogen growth in the soil and on plant surfaces."], "chemical": ["Apply protective fungicides (e.g., copper oxychloride, mancozeb) before periods of high risk.", "Use systemic fungicides (e.g., hexaconazole, propiconazole) for curative action, following local regulations and resistance management guidelines."], "notes": "An integrated pest management (IPM) approach is recommended, combining cultural practices with judicious, need-based fungicide applications timed with weather forecasts."}, "qa_seeds": {"verification_templates": ["Does this leaf have a spot with a gray or white center?", "Is there a dark, well-defined border around the lesion?", "Can you see any target-like concentric rings on the spot?", "Are there tiny black dots visible in the middle of the lesion?", "Is this a symptom of gray blight?", "Does the spot appear sunken and papery in the center?"], "attribute_templates": ["What color is the center of the largest lesion?", "Describe the border of the spot on the leaf.", "Are the lesions circular or irregular?", "Do the spots show a zonate pattern?", "What part of the leaf is most affected?", "Are there any visible signs like small black dots on the lesion?"], "diagnosis_templates": ["What disease causes target-like spots with gray centers on tea leaves?", "Based on the zonate lesions with dark borders, what is the likely disease?", "Why would this be diagnosed as gray blight and not another leaf spot?", "What is the name of the condition affecting this leaf?"], "counterfactual_templates": ["If the spot was raised and orange instead of sunken and gray, what could it be?", "If the spots were black, angular, and caused leaf curling, what would be a more likely cause than gray blight?"], "severity_templates": ["Based on the affected area, would you classify this gray blight infection as mild, moderate, or severe?", "What percentage of this leaf's surface is covered by gray blight lesions?", "Are the individual spots beginning to merge together?"], "confounders": ["leaf_blight", "helopeltis_damage", "algal_leaf_spot"]}, "data_requirements": {"min_resolution_px": 800, "min_roi_fraction": 0.25, "lighting_notes": "Use diffuse, even lighting. Avoid hard shadows and direct sunlight, which can obscure the subtle color variations and concentric rings of the lesions.", "occlusion_notes": "The primary lesion(s) of interest should be at least 75% visible and not significantly obscured by other leaves, stems, or debris."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T11:30:00Z", "updated_at": "2023-10-27T11:30:00Z", "sources": ["APS Compendium of Tea Diseases and Pests", "Tea Research Association extension guides", "General plant pathology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "tea.healthy.healthy", "aliases": ["Normal tea plant", "Undiseased tea"], "crop": {"common_name": "tea", "scientific_name": "Camellia sinensis", "family": "Theaceae"}, "condition": {"common_name": "Healthy", "scientific_name": null, "alt_names": ["Normal", "No disease"], "pathogen": {"type": "physiological", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "healthy", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": [], "temp_c_day": [], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Not applicable. Plant is either healthy or exhibits symptoms of a condition.", "moderate": "Not applicable.", "severe": "Not applicable.", "notes": "Healthy is a binary state defined by the absence of disease, pest, or abiotic stress symptoms. Any deviation would classify the plant as unhealthy."}, "symptoms": {"leaves": ["Leaves are uniformly green, ranging from light green on new growth (flush) to a deep, dark green on mature leaves.", "Leaf surface is smooth, often with a waxy or glossy appearance.", "Leaf margins are intact and typically serrated, not ragged, torn, or necrotic.", "No visible spots, lesions, discoloration, stippling, or pustules are present.", "Leaves are turgid and appropriately shaped, not wilted, curled, or distorted.", "Venation pattern is normal for the cultivar without discoloration."], "stems": ["Young stems and shoots are green, supple, and vigorous.", "Older stems are woody, brown or grayish, and firm.", "No cankers, galls, dieback, or unusual growths are visible."], "fruit": ["Flowers, if present, are typically white with bright yellow stamens and show no signs of blight or malformation.", "Seed capsules, if present, are green to brown, firm, and free of lesions."], "roots": [], "whole_plant": ["Exhibits a dense, bushy growth habit with vigorous new shoots.", "Overall appearance is uniform in color and density."], "signs_microscopic_or_visible": ["Absence of any visible signs of pathogens or pests, such as fungal mycelium, spores, webbing, insect frass, or insect bodies."]}, "lookalikes": [{"condition_name": "algal_leaf_spot", "condition_id": "tea.fungal.algal_leaf_spot", "key_differences": ["Healthy leaves have a smooth, uniform surface, whereas algal leaf spot presents as distinct, slightly raised, circular spots.", "The spots from algal leaf spot have a velvety texture and are typically gray-green, later turning orange-red.", "Healthy leaves lack the defined border that often characterizes algal spots."]}, {"condition_name": "spider_mites", "condition_id": "tea.pest.spider_mites", "key_differences": ["Healthy leaves have a uniform green color, while mite damage causes a fine, pale yellow or whitish stippling on the leaf surface.", "In severe cases, mite damage can lead to a bronze or grayish cast on the leaves, which is absent in healthy plants.", "The underside of mite-infested leaves may have fine silk webbing, which is never present on healthy leaves."]}, {"condition_name": "helopeltis_damage", "condition_id": "tea.pest.helopeltis_damage", "key_differences": ["Healthy leaves are whole and unblemished.", "Helopeltis damage is characterized by distinct, angular, dark brown to black necrotic spots where the insect has fed.", "Feeding spots from Helopeltis often cause the leaf to become distorted or curled as it grows, a feature absent in healthy leaves."]}], "management": {"cultural": ["Maintain balanced soil fertility through appropriate nutrient management.", "Ensure proper soil drainage and consistent irrigation to avoid water stress.", "Regularly prune plants to encourage vigorous new growth and improve air circulation.", "Practice good field sanitation to remove potential sources of inoculum or pests."], "biological": [], "chemical": [], "notes": "Management for a healthy plant focuses on preventative care and maintaining optimal growing conditions to prevent stress, which can predispose the plant to diseases and pests."}, "qa_seeds": {"verification_templates": ["Is this tea plant healthy?", "Are there any visible spots, lesions, or discolorations on the leaves?", "Does this leaf appear normal and undamaged?", "Can you see any signs of pests or disease on this plant?", "Is the color of the foliage uniform and green?"], "attribute_templates": ["What color are the leaves?", "Describe the texture of the leaf surface.", "Are the edges of the leaves smooth or damaged?", "What is the overall growth habit of the plant?", "Are the new shoots (flush) a different color than the mature leaves?", "Is there any webbing visible on the leaves?"], "diagnosis_templates": ["What is the condition of this tea plant?", "Is this plant healthy or does it have a disease?", "Based on the visual evidence, what is the diagnosis for this plant?", "Is there anything wrong with this tea leaf?"], "counterfactual_templates": ["If this leaf had fine, pale stippling and webbing on the underside, what could be the issue?", "What would you see on this leaf if it were damaged by Helopeltis bugs?", "If this plant were not healthy, what kind of symptoms might you look for?"], "severity_templates": ["How would you rate the health of this plant?", "Is this plant completely free of symptoms?", "What is the severity of the condition shown here?"], "confounders": ["algal_leaf_spot", "spider_mites", "helopeltis_damage"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Use even, diffuse lighting. Avoid harsh direct sunlight, deep shadows, or flash photography that can create glare and obscure true leaf color and texture.", "occlusion_notes": "The leaf or plant section of interest should be largely free of occlusion from other leaves, branches, or background objects to allow for a clear assessment of its condition."}, "provenance": {"created_by": "expert_plant_pathologist_vqa_designer", "reviewed_by": "expert_plant_pathologist_vqa_designer", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["General university extension guides for tea cultivation", "APS Compendium of Tea Diseases and Pests"]}}
+{"schema_version": "1.0.0", "disease_id": "tea.pest_insect.helopeltis_damage", "aliases": ["Tea mosquito bug damage", "Helopeltis"], "crop": {"common_name": "Tea", "scientific_name": "Camellia sinensis", "family": "Theaceae"}, "condition": {"common_name": "Helopeltis Damage", "scientific_name": "Helopeltis spp.", "alt_names": ["Tea mosquito bug", "Mirid bug damage"], "pathogen": {"type": "Insect", "taxonomy": {"kingdom": "Animalia", "phylum": "Arthropoda", "class": "Insecta", "order": "Hemiptera", "family": "Miridae", "genus": "Helopeltis", "species": ""}}}, "issue_type": "pest_insect", "transmission": {"vectors": ["Adult and nymph Helopeltis bugs"], "dispersal": ["Active flight of adult bugs", "Crawling of nymphs between leaves and shoots"], "overwintering": ["Eggs laid within plant tissues (stems, petioles)", "Adults surviving on alternate host plants"]}, "environmental_risk": {"risk_factors": ["High relative humidity (>70%)", "Overcast, cloudy weather", "Presence of alternate weed hosts (e.g., Mikania micrantha)", "Lush, succulent new growth from excessive nitrogen fertilizer"], "temp_c_day": [20, 30], "temp_c_night": [], "relative_humidity_pct": [70, 95], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "lesion_count", "mild": "1-5 distinct feeding punctures per young leaf or shoot.", "moderate": "6-15 coalescing lesions per young leaf or shoot, causing some leaf curling or distortion.", "severe": ">15 lesions per young leaf or shoot, causing significant distortion, blackening, and dieback of the shoot ('bunchy top').", "notes": "Severity is assessed on the tender, new flush (e.g., 'two leaves and a bud') as this is the primary target. Damage on older, hardened leaves is historical and not indicative of a current, active infestation."}, "symptoms": {"leaves": ["Initially, small, circular, water-soaked, translucent spots on young, tender leaves.", "Spots rapidly turn dark brown to black, becoming necrotic and sunken.", "Multiple feeding punctures can coalesce to form larger, irregular black patches.", "Affected young leaves become severely crinkled, distorted, and stunted in growth.", "In severe attacks, young leaves curl, blacken completely, and die."], "stems": ["Similar dark, necrotic, sunken lesions appear on young, green stems and petioles.", "Feeding on the terminal bud or young stem causes the shoot tip to wilt and die back.", "Severe dieback of the main shoot can lead to a 'bunchy top' appearance as lateral buds attempt to grow."], "fruit": [], "roots": [], "whole_plant": ["Damage is concentrated on the new, harvestable flush.", "A heavily infested bush appears scorched or burnt on its top canopy."], "signs_microscopic_or_visible": ["Slender, reddish-brown or black adult bugs with long legs and antennae, often found on the underside of leaves.", "Greenish or yellowish nymphs, similar in shape to adults but smaller and wingless."]}, "lookalikes": [{"condition_name": "Looper Damage", "condition_id": "tea.pest_insect.looper_damage", "key_differences": ["Looper damage consists of chewed leaf margins or holes with missing tissue, whereas Helopeltis damage is necrotic, sunken punctures with no tissue removed.", "Helopeltis lesions are initially water-soaked and turn black; looper damage is simply an absence of leaf area.", "Looper caterpillars or their frass (droppings) may be visible; Helopeltis bugs are slender and mosquito-like."]}, {"condition_name": "Leaf Blight", "condition_id": "tea.fungal.leaf_blight", "key_differences": ["Blight lesions are typically larger, more diffuse, and may have faint concentric rings or a 'target' appearance, unlike the discrete punctures of Helopeltis.", "Helopeltis damage is almost exclusively on tender new growth, while fungal blights can often affect leaves of various ages.", "Blight lesions are generally not sunken in the same way as Helopeltis feeding punctures.", "Fungal blight may show signs like pycnidia (small black dots) within the lesion, which are absent in pest damage."]}, {"condition_name": "Spider Mites", "condition_id": "tea.pest_mite.spider_mites", "key_differences": ["Spider mite damage appears as fine, yellowish-white stippling or a general bronzing of the leaf surface, not discrete black spots.", "Helopeltis causes distinct, sunken, necrotic lesions from its toxic saliva during feeding.", "Fine webbing is often present on the underside of leaves with spider mites, which is absent with Helopeltis."]}], "management": {"cultural": ["Regular pruning to regulate shade and improve air circulation, making the environment less favorable for the pest.", "Control of alternate weed hosts (e.g., Mikania, Acalypha) in and around the plantation.", "Avoid excessive nitrogen application, which promotes the succulent growth preferred by the pest.", "Maintain field sanitation to reduce pest carryover."], "biological": ["Conservation and encouragement of natural enemies like reduviid bugs, praying mantises, and spiders.", "Application of entomopathogenic fungi such as Beauveria bassiana during periods of high humidity."], "chemical": ["Foliar application of approved insecticides, focusing on the new flush during peak pest activity (early morning or late afternoon).", "Use of both contact and systemic insecticides based on infestation levels and local agricultural recommendations."], "notes": "An Integrated Pest Management (IPM) approach is critical. Regular monitoring of pest populations to determine economic thresholds for spraying helps preserve natural enemies and reduce chemical costs."}, "qa_seeds": {"verification_templates": ["Are there small, distinct, black sunken spots on the youngest leaves?", "Is the damage primarily located on the new, tender shoots (the flush)?", "Do the affected young leaves look crinkled and distorted?", "Is there evidence of shoot tip dieback?", "Can you see any slender, mosquito-like bugs on the plant?"], "attribute_templates": ["What color are the lesions on the leaves?", "Describe the shape of the most damaged young leaves.", "What is the texture of the spots?", "Where on the tea bush is the damage most concentrated?", "Are the spots isolated or have they merged into larger black patches?"], "diagnosis_templates": ["Based on the small, black, sunken punctures on the distorted new flush, what is causing the damage?", "The young shoots are dying back and the leaves have numerous dark, circular lesions. What pest is responsible?", "If you see mosquito-like bugs and blackened, crinkled young tea leaves, what is the diagnosis?"], "counterfactual_templates": ["What if the damage was missing leaf tissue from the edges instead of sunken spots?", "What if the spots were larger, had concentric rings, and also appeared on older leaves?", "What if the leaves were covered in a fine, bronze-colored stippling instead of distinct black spots?"], "severity_templates": ["How many distinct feeding punctures are on the most affected young leaf?", "Are the lesions on the new shoots mostly isolated spots or have they merged to cause dieback?", "Based on the number of lesions and degree of shoot distortion, would you classify this damage as mild, moderate, or severe?"], "confounders": ["looper_damage", "leaf_blight", "spider_mites"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Diffuse, even lighting is best. Avoid harsh shadows or direct sunlight, which can obscure the sunken nature of lesions and their water-soaked margins.", "occlusion_notes": "Ensure the symptomatic young leaves and shoots are clearly visible and not obscured by older, healthy leaves. A top-down or side-on view of the new flush is ideal."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["Tea Research Association (TRA) compendia", "CABI Invasive Species Compendium", "University and government extension guides on tea pests"]}}
+{"schema_version": "1.0.0", "disease_id": "tea.disease_fungal.leaf_blight", "aliases": ["tea anthracnose", "bird's eye spot of tea", "target spot of tea"], "crop": {"common_name": "tea", "scientific_name": "Camellia sinensis", "family": "Theaceae"}, "condition": {"common_name": "leaf blight", "scientific_name": "Colletotrichum gloeosporioides (teleomorph: Glomerella cingulata)", "alt_names": ["Pestalotiopsis theae"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Sordariomycetes", "order": "Glomerellales", "family": "Glomerellaceae", "genus": "Colletotrichum", "species": "gloeosporioides"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": ["rain splash", "wind", "insects (mechanical)"], "dispersal": ["conidia (asexual spores)", "contaminated pruning tools", "human movement"], "overwintering": ["infected fallen leaves", "cankers on stems", "dormant mycelium in plant debris"]}, "environmental_risk": {"risk_factors": ["prolonged periods of high humidity", "frequent rainfall", "poor air circulation in dense canopies", "wounds from pruning or pests", "nutrient stress"], "temp_c_day": [20, 30], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 8}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "Fewer than 5 lesions per leaf, or < 5% of the total leaf area is symptomatic.", "moderate": "Multiple lesions, some may be coalescing, covering 5-25% of the total leaf area.", "severe": "Large, coalesced lesions covering > 25% of the leaf area, often leading to leaf distortion, withering, and premature defoliation.", "notes": "Severity is estimated based on the percentage of symptomatic tissue on visible leaves in an image. It can be assessed on an individual leaf or averaged across the plant canopy."}, "symptoms": {"leaves": ["Initial symptoms are small, water-soaked, yellowish-brown spots, often on mature leaves.", "Spots enlarge to form circular or irregular lesions, typically 2-10 mm in diameter.", "Mature lesions develop a characteristic pale gray, tan, or whitish center.", "A distinct, raised, dark brown or purplish-brown border surrounds the pale center.", "Concentric rings are often visible within the lesion, creating a 'target' or 'bull's-eye' appearance.", "Multiple lesions can merge (coalesce) to form large, irregular blighted patches.", "In severe infections, the entire leaf may turn brown, curl, and drop prematurely.", "Lesions may crack or fall out, creating a 'shot-hole' effect."], "stems": ["In severe cases, cankers or dieback can occur on young shoots and twigs."], "fruit": [], "roots": [], "whole_plant": ["Reduced vigor and defoliation in heavily infected bushes.", "Overall thinning of the plant canopy."], "signs_microscopic_or_visible": ["Under humid conditions, tiny black dots (acervuli, the fungal fruiting bodies) may appear arranged in concentric rings within the pale center of lesions.", "During wet periods, pinkish or salmon-colored spore masses may ooze from the acervuli."]}, "lookalikes": [{"condition_name": "gray_blight", "condition_id": "tea.disease_fungal.gray_blight", "key_differences": ["Gray blight lesions are often larger, more uniformly gray or brownish, and may lack the distinct, dark, raised border of leaf blight.", "Gray blight lesions typically have a more 'sooty' appearance due to numerous black pycnidia scattered across the surface, rather than arranged in rings.", "The 'target' or 'bull's-eye' pattern is much more characteristic of leaf blight than gray blight."]}, {"condition_name": "helopeltis_damage", "condition_id": "tea.pest_insect.helopeltis_damage", "key_differences": ["Helopeltis damage results from insect feeding punctures, creating initially water-soaked spots that quickly turn dark brown or black and become sunken.", "Lesions from Helopeltis are often more angular and do not typically develop pale centers or concentric rings.", "No fungal signs (like acervuli or spore masses) are present in Helopeltis lesions."]}, {"condition_name": "algal_leaf_spot", "condition_id": "tea.disease_algal.algal_leaf_spot", "key_differences": ["Algal spots are superficial and slightly raised from the leaf surface with a velvety or crusty texture.", "Algal spots are typically greenish-gray to orange-red in color, not the tan/gray center with a dark border typical of leaf blight.", "Leaf blight lesions are necrotic and sunken into the leaf tissue, whereas algal spots grow on the surface."]}], "management": {"cultural": ["Prune and remove infected leaves and twigs to reduce inoculum.", "Ensure proper plant spacing and canopy management to improve air circulation and reduce humidity.", "Avoid overhead irrigation to minimize leaf wetness duration.", "Maintain balanced plant nutrition to improve host resistance."], "biological": ["Application of biocontrol agents such as *Trichoderma* spp. or *Bacillus subtilis* can help suppress the pathogen."], "chemical": ["Apply protective fungicides, such as copper-based compounds, mancozeb, or chlorothalonil, especially during periods favorable for disease development.", "Systemic fungicides like carbendazim or thiophanate-methyl may be used for curative action, subject to local regulations and resistance management."], "notes": "An integrated pest management (IPM) approach combining cultural, biological, and chemical methods is most effective. Fungicide application should be timed based on weather forecasts and disease pressure."}, "qa_seeds": {"verification_templates": ["Does this tea leaf show signs of leaf blight?", "Is there a lesion with a pale center and a dark border present?", "Can you see any target-like spots on the leaves?", "Is the condition shown consistent with a fungal leaf blight infection?", "Are there concentric rings visible within the leaf spots?"], "attribute_templates": ["What color is the center of the largest lesion?", "Describe the border of the spots on the leaf.", "What is the shape of the lesions?", "Are the lesions circular or irregular?", "Are there any tiny black dots visible inside the spots?", "Do the spots exhibit a 'bull's-eye' pattern?"], "diagnosis_templates": ["What disease causes target-like spots with pale centers on tea leaves?", "Based on the concentric rings and dark borders of the lesions, what is the likely diagnosis?", "What fungal pathogen is responsible for these symptoms on the tea plant?"], "counterfactual_templates": ["If the spots were raised and orange-red, would it still be leaf blight?", "If the lesions were uniformly gray and covered in black specks without a distinct border, what other disease might it be?", "If the damage was caused by insect feeding punctures, would you expect to see these pale centers?"], "severity_templates": ["How severe is the leaf blight infection on this plant?", "What percentage of the leaf surface is covered by lesions?", "Would you classify this infection as mild, moderate, or severe?"], "confounders": ["gray_blight", "helopeltis_damage", "algal_leaf_spot"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Use diffuse, even lighting. Avoid hard shadows, overexposure, and direct sunlight glare which can obscure lesion details like color and texture.", "occlusion_notes": "The primary symptomatic leaves and lesions should be in focus and not significantly obscured by other leaves, stems, or background objects."}, "provenance": {"created_by": "expert_plant_pathologist_vqa_designer", "reviewed_by": "expert_plant_pathologist_vqa_designer", "created_at": "2024-05-23T10:00:00Z", "updated_at": "2024-05-23T10:00:00Z", "sources": ["General university extension guides for tea pathology", "APS Compendium of Tea Diseases and Pests", "Peer-reviewed plant pathology journals"]}}
+{"schema_version": "1.0.0", "disease_id": "tea.pest_insect.looper_damage", "aliases": ["tea looper", "inchworm", "measuring worm"], "crop": {"common_name": "Tea", "scientific_name": "Camellia sinensis", "family": "Theaceae"}, "condition": {"common_name": "Looper Damage", "scientific_name": "Biston suppressaria", "alt_names": ["Inchworm damage", "Measuring worm damage"], "pathogen": {"type": "Insect", "taxonomy": {"kingdom": "Animalia", "phylum": "Arthropoda", "class": "Insecta", "order": "Lepidoptera", "family": "Geometridae", "genus": "Biston", "species": "suppressaria"}}}, "issue_type": "pest_insect", "transmission": {"vectors": ["Adult moths (for egg laying)"], "dispersal": ["Moth flight", "Larval movement (crawling)"], "overwintering": ["Pupae in soil or leaf litter at the base of the plant"]}, "environmental_risk": {"risk_factors": ["Warm, humid conditions favorable for larval development", "Presence of alternate host plants", "Periods of low natural enemy populations"], "temp_c_day": [20, 30], "temp_c_night": [15, 25], "relative_humidity_pct": [60, 90], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "< 10% of leaf area consumed on affected leaves; damage is sparse and limited to a few shoots.", "moderate": "10-40% of leaf area consumed on affected leaves; noticeable defoliation on several branches.", "severe": "> 40% of leaf area consumed; widespread defoliation, skeletonization of leaves, and presence of numerous larvae.", "notes": "Severity is assessed by the percentage of leaf tissue removed by larval feeding. High counts of larvae also indicate high severity, even if defoliation is not yet widespread. Leaf wetness is not a primary driver for insect feeding."}, "symptoms": {"leaves": ["Irregularly shaped holes chewed in the leaf lamina.", "Leaf margins appear scalloped, notched, or unevenly eaten.", "Young, tender leaves and buds are preferentially consumed.", "In severe infestations, only the midrib and major veins remain, a condition known as skeletonization.", "Presence of small, dark green to black fecal pellets (frass) on leaf surfaces."], "stems": ["Young, tender stems (shoots) may be girdled or chewed.", "Larvae are often seen resting motionless on stems, camouflaged as twigs."], "fruit": [], "roots": [], "whole_plant": ["Noticeable defoliation, particularly affecting the upper canopy or 'plucking table'.", "Reduced plant vigor and stunted growth in young or heavily infested plants."], "signs_microscopic_or_visible": ["Visible caterpillars (larvae) that move with a characteristic 'looping' or 'measuring' gait.", "Larvae are typically green, brown, or grey, mimicking twigs for camouflage.", "Clusters of small, spherical eggs may be found on the underside of leaves or on stems."]}, "lookalikes": [{"condition_name": "Helopeltis Damage", "condition_id": "tea.pest_insect.helopeltis_damage", "key_differences": ["Looper damage is the removal of leaf tissue (chewing), while Helopeltis damage consists of distinct, sunken, dark brown or black necrotic spots from piercing-sucking feeding.", "Looper damage often creates holes or notched margins, whereas Helopeltis spots are solid lesions that do not remove tissue.", "The presence of frass (fecal pellets) is a clear sign of looper activity and is absent with Helopeltis.", "Helopeltis damage can cause leaf curling and distortion around the feeding spots, which is different from the clean chewing of loopers."]}, {"condition_name": "Gray Blight", "condition_id": "tea.fungal.gray_blight", "key_differences": ["Looper damage involves missing leaf tissue, while gray blight is a fungal disease causing large, necrotic lesions that turn grayish-white and brittle.", "Gray blight lesions often have a distinct, darker border and may contain tiny black dots (pycnidia), which are fungal structures absent in pest damage.", "The texture of a blight lesion is papery and dead, whereas looper damage is simply an absence of tissue at the edge of healthy tissue."]}, {"condition_name": "Leaf Scab", "condition_id": "tea.fungal.leaf_scab", "key_differences": ["Looper damage removes leaf tissue, creating holes. Leaf scab creates raised, corky, or wart-like lesions on the leaf surface, often on the underside.", "Scab lesions are additive (a growth on the leaf), while looper damage is subtractive (tissue is gone).", "Leaf scab causes significant distortion and curling of the leaf around the lesion, which is not a primary symptom of looper feeding."]}], "management": {"cultural": ["Regular monitoring and scouting for larvae, especially on young flushes.", "Hand-picking of larvae in small-scale or low-level infestations.", "Promoting natural enemies by maintaining biodiversity and avoiding broad-spectrum insecticides."], "biological": ["Application of Bacillus thuringiensis (Bt) formulations, which are effective against lepidopteran larvae.", "Encouragement of natural predators like birds, wasps, and spiders.", "Use of viral pathogens like Nuclear Polyhedrosis Virus (NPV) specific to the looper."], "chemical": ["Application of selective insecticides when infestation levels exceed economic thresholds.", "Use of insect growth regulators (IGRs) that disrupt the molting process of larvae.", "Targeted spot spraying to minimize impact on non-target organisms."], "notes": "Integrated Pest Management (IPM) combining cultural, biological, and judicious chemical control is the most sustainable approach."}, "qa_seeds": {"verification_templates": ["Is there evidence of chewing on the tea leaves, such as holes or notched edges?", "Are parts of the leaf tissue completely missing?", "Can you see a caterpillar on the plant?", "Does the caterpillar move by arching its body into a loop?", "Are there any small, dark pellets, like insect droppings, on the leaves?"], "attribute_templates": ["Describe the shape of the damage on the leaf margin.", "Is the leaf tissue eaten all the way through, creating a hole?", "What parts of the leaf are left behind? (e.g., only the midrib)", "What color is the caterpillar seen on the leaf?", "How is the caterpillar positioned on the stem or leaf?"], "diagnosis_templates": ["What pest creates scalloped edges and irregular holes by chewing on tea leaves?", "Based on the skeletonized leaves and presence of inchworms, what is affecting this tea plant?", "The tea leaves have been chewed, and there is frass present. What is the likely cause?"], "counterfactual_templates": ["If the damage were small, dark, sunken spots instead of chewed holes, what could be the cause?", "What would the symptoms look like if this were a fungal disease like gray blight instead of pest damage?"], "severity_templates": ["What percentage of the leaf surface is missing due to chewing?", "How would you rate the defoliation on this plant: mild, moderate, or severe?", "Is the looper damage concentrated on a few leaves or widespread across the bush?"], "confounders": ["helopeltis_damage", "gray_blight", "leaf_scab"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Use even, diffuse lighting. Avoid hard shadows or direct sunlight that can obscure the texture of chewed edges or camouflage the larvae.", "occlusion_notes": "The damaged leaf area should be clearly visible and not covered by other leaves. If the caterpillar is the subject, it should be in sharp focus."}, "provenance": {"created_by": "AI Plant Pathologist", "reviewed_by": "VQA Dataset Designer", "created_at": "2023-10-27T11:30:00Z", "updated_at": "2023-10-27T11:30:00Z", "sources": ["University extension guides for tea cultivation", "APS Compendium of Tea Diseases and Pests", "General entomology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "tea.disease_fungal.red_leaf_spot", "aliases": ["Cercospora leaf spot", "bird's eye spot"], "crop": {"common_name": "tea", "scientific_name": "Camellia sinensis", "family": "Theaceae"}, "condition": {"common_name": "red leaf spot", "scientific_name": "Cercospora theae", "alt_names": ["bird's eye spot of tea"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Capnodiales", "family": "Mycosphaerellaceae", "genus": "Cercospora", "species": "theae"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["wind-borne spores", "rain splash"], "overwintering": ["infected leaves (attached or fallen)", "plant debris on the ground"]}, "environmental_risk": {"risk_factors": ["prolonged leaf wetness from rain, dew, or overhead irrigation", "high relative humidity (>85%)", "warm temperatures", "poor air circulation within the plant canopy", "presence of infected plant debris"], "temp_c_day": [20, 30], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 8}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-5% of leaf area affected. A few, small, scattered lesions are visible on a representative leaf.", "moderate": "6-25% of leaf area affected. Multiple lesions are present, and some may be starting to merge.", "severe": ">25% of leaf area affected. Lesions are numerous, cover a large portion of the leaf, and may lead to yellowing or premature leaf drop.", "notes": "Severity is visually estimated as the percentage of the total surface area of a single, representative, mature leaf that is covered by spots. This is a practical method for assessing foliar disease intensity in images."}, "symptoms": {"leaves": ["Affects primarily mature and older leaves, less common on young flush.", "Begins as small, circular, water-soaked spots.", "Develops into distinct, circular lesions, typically 2-5 mm in diameter.", "Lesions have a characteristic reddish-brown to dark brown color.", "A distinct, dark, slightly raised border often surrounds the lesion.", "The center of mature lesions frequently becomes pale gray or white, creating a 'bird's eye' or 'frog-eye' appearance.", "Lesions are generally flat or slightly sunken into the leaf tissue.", "Under severe infection, numerous spots can coalesce, forming larger necrotic blotches.", "Heavily infected leaves may turn yellow (chlorosis) and fall off prematurely."], "stems": [], "fruit": [], "roots": [], "whole_plant": ["Reduced photosynthetic area due to lesions and defoliation.", "Overall loss of plant vigor and potential reduction in tea yield and quality."], "signs_microscopic_or_visible": ["Under magnification and high humidity, tiny dark tufts of conidiophores may be visible in the center of lesions."]}, "lookalikes": [{"condition_name": "algal leaf spot", "condition_id": "tea.disease_other.algal_leaf_spot", "key_differences": ["Texture: Algal spots are raised and have a crusty or velvety texture, whereas red leaf spots are flat or slightly sunken.", "Color: Algal spots are typically grayish-green, sometimes turning orange-red, not the distinct reddish-brown of red leaf spot.", "Margin: Algal spots often have indistinct, feathery margins, unlike the well-defined border of red leaf spot."]}, {"condition_name": "gray blight", "condition_id": "tea.disease_fungal.gray_blight", "key_differences": ["Size & Location: Gray blight lesions are much larger (often >1 cm) and frequently start at the leaf tip or margin, not as small, scattered circles.", "Appearance: Gray blight lesions are grayish-brown and classically exhibit distinct concentric rings, giving them a target-like appearance.", "Signs: Tiny black dots (acervuli) are often visible arranged in the concentric rings of gray blight lesions."]}, {"condition_name": "helopeltis_damage", "condition_id": "tea.pest_insect.helopeltis_damage", "key_differences": ["Shape: Damage spots from Helopeltis (tea mosquito bug) are typically irregular, angular, or blotchy, not consistently circular.", "Color: Helopeltis feeding marks are dark brown to black and sunken, lacking the reddish hue and pale center of red leaf spot.", "Pattern: Damage is often clustered where the insect has fed and may be accompanied by distorted or stunted new growth."]}], "management": {"cultural": ["Prune bushes to improve air circulation and promote faster drying of leaves.", "Remove and destroy fallen infected leaves and prunings to reduce inoculum sources.", "Maintain balanced plant nutrition to improve plant vigor and resistance.", "Avoid overhead irrigation where possible to minimize periods of leaf wetness."], "biological": ["Applications of bio-control agents like *Trichoderma* spp. may help suppress the pathogen population in the soil and on plant surfaces."], "chemical": ["Apply protective copper-based fungicides (e.g., copper oxychloride, Bordeaux mixture) before the onset of rainy seasons.", "Systemic fungicides (e.g., hexaconazole, propiconazole) can be used for curative action, following local regulations and pre-harvest intervals."], "notes": "Integrated disease management combining cultural practices with need-based chemical applications is most effective. Always consult local agricultural extension services for recommended products and timing."}, "qa_seeds": {"verification_templates": ["Are there small, circular spots on the tea leaves?", "Do any of the spots have a reddish-brown color?", "Can you see a pale gray or white center inside any of the leaf spots?", "Is the damage primarily located on older, more mature leaves?", "Do the lesions appear to be less than 5mm in diameter?"], "attribute_templates": ["What is the shape of the spots on the leaf?", "What color is the border of the lesion?", "Describe the color of the center of the spots.", "Are the spots flat, raised, or sunken?", "What is the approximate size of a typical spot?", "Are the spots scattered or concentrated at the leaf tip?"], "diagnosis_templates": ["What disease causes small, reddish-brown spots with gray centers, often called 'bird's eye spots', on tea?", "Based on the circular, reddish-brown lesions, what is the likely disease?", "What is the probable cause of these 'frog-eye' spots on the mature tea leaves?"], "counterfactual_templates": ["If the spots were large, gray, and had a target-like pattern, what disease would it be instead?", "If the spots were raised, velvety, and greenish-gray, what would be the cause?", "If the spots were black, irregular, and caused by an insect, what pest might be responsible?"], "severity_templates": ["What percentage of this leaf's surface is covered by red spots?", "How would you classify the infection severity: mild, moderate, or severe?", "Are there more than 10 distinct spots visible on this leaf?"], "confounders": ["algal_leaf_spot", "gray_blight", "helopeltis_damage"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Diffuse, even lighting is optimal. Avoid hard shadows and direct sun glare, which can obscure the true color and texture of the lesions.", "occlusion_notes": "The symptomatic leaf should be the main focus and largely unobstructed. Less than 20% occlusion by other leaves, stems, or external objects is ideal for accurate assessment."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Plant Pathologist", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["University agricultural extension guides", "APS Compendium of Tea Diseases and Pests", "Peer-reviewed plant pathology literature"]}}
+{"schema_version": "1.0.0", "disease_id": "tea.disease_fungal.leaf_scab", "aliases": ["bird's eye spot", "cercospora leaf spot"], "crop": {"common_name": "Tea", "scientific_name": "Camellia sinensis", "family": "Theaceae"}, "condition": {"common_name": "Leaf Scab", "scientific_name": "Elsinoë theae", "alt_names": ["Bird's eye spot"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Myriangiales", "family": "Elsinoaceae", "genus": "Elsinoë", "species": "E. theae"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["wind-blown rain", "water splash", "contaminated pruning tools"], "overwintering": ["infected leaves", "cankers on stems", "plant debris on the ground"]}, "environmental_risk": {"risk_factors": ["prolonged leaf wetness", "high humidity", "poor air circulation in dense canopies", "presence of young, susceptible flush leaves", "warm temperatures"], "temp_c_day": [20, 28], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 10}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-5% of leaf area affected. A few scattered, distinct lesions on the leaf.", "moderate": "6-25% of leaf area affected. Multiple lesions are present, some may be starting to merge (coalesce).", "severe": ">25% of leaf area affected. Numerous lesions have coalesced into large necrotic patches, causing significant leaf distortion, yellowing, or premature defoliation.", "notes": "Assessment should be based on the most symptomatic leaves on the plant. The percentage reflects the total surface area covered by lesions."}, "symptoms": {"leaves": ["Initial symptoms are small, dark brown to purplish, water-soaked spots on young, tender leaves.", "Lesions expand to form circular spots, typically 1-5 mm in diameter.", "Mature spots develop a characteristic pale gray, tan, or whitish center.", "A distinct, raised, dark brown or purplish-red border surrounds the pale center, creating a 'bird's eye' or 'frog-eye' appearance.", "The center of the lesion may become thin and papery, eventually falling out to create a 'shot-hole' effect.", "Under heavy infection, multiple spots can coalesce, forming large, irregular, blighted areas.", "Affected leaves may become distorted, puckered, or curled.", "Severe infections can lead to premature leaf drop."], "stems": ["On young, green stems and petioles, lesions appear as small, slightly raised, scabby cankers with similar coloration to leaf spots."], "fruit": [], "roots": [], "whole_plant": ["Reduced plant vigor and poor growth in cases of chronic, severe infection."], "signs_microscopic_or_visible": ["Under high humidity and with a hand lens, tiny black specks (acervuli, the fungal fruiting bodies) may be visible in the center of lesions."]}, "lookalikes": [{"condition_name": "Algal Leaf Spot", "condition_id": "tea.disease_algal.algal_leaf_spot", "key_differences": ["Algal spots are raised, superficial, and have a velvety or felt-like texture, whereas leaf scab lesions are slightly sunken.", "Algal spots are typically grayish-green, yellow, or orange-red and lack the distinct pale center and dark border of leaf scab.", "Algal spots can often be physically scraped off the leaf surface; leaf scab lesions are integrated into the leaf tissue."]}, {"condition_name": "Gray Blight", "condition_id": "tea.disease_fungal.gray_blight", "key_differences": ["Gray blight lesions are much larger (often >1 cm), starting from the leaf margin or tip, while leaf scab spots are small and scattered.", "Gray blight lesions are grayish-brown and often have concentric rings (zonate pattern), which is absent in leaf scab.", "Leaf scab has a distinct 'bird's eye' look with a white/gray center and dark border; gray blight is more uniformly colored or zoned.", "Gray blight often features tiny black dots (pycnidia) arranged in rings, a key diagnostic sign not seen in leaf scab."]}, {"condition_name": "Helopeltis Damage", "condition_id": "tea.damage_insect.helopeltis_damage", "key_differences": ["Helopeltis damage results in angular, water-soaked lesions that turn black or dark brown, without a pale center or colored border.", "Insect feeding punctures are often visible and damage may appear in a linear or clustered pattern.", "The transition from the necrotic spot to healthy tissue is very sharp and abrupt with Helopeltis damage."]}], "management": {"cultural": ["Prune bushes to improve air circulation and light penetration, which helps dry leaves faster.", "Remove and destroy fallen leaves and severely infected plant parts to reduce inoculum.", "Avoid overhead irrigation to minimize the duration of leaf wetness.", "Maintain balanced soil fertility to promote plant vigor and resistance."], "biological": ["Application of microbial antagonists like *Trichoderma* species can help suppress pathogen populations in the soil and on plant surfaces."], "chemical": ["Apply protective copper-based fungicides before or during periods of high risk (warm, wet weather).", "Systemic fungicides (e.g., strobilurins, triazoles) can be effective but should be used in rotation to prevent resistance.", "Timing is critical; applications should protect new, susceptible flushes of growth."], "notes": "An integrated approach combining cultural practices with judicious fungicide use is most effective for long-term management."}, "qa_seeds": {"verification_templates": ["Does this tea leaf exhibit spots with pale centers and dark, raised borders?", "Is there evidence of a 'bird's eye spot' pattern on this leaf?", "Can you confirm the presence of leaf scab symptoms?", "Are there small, circular lesions on this leaf, some of which have a shot-hole appearance?", "Do the spots on this leaf match the description of leaf scab?"], "attribute_templates": ["What color is the border of the lesions on the leaf?", "Describe the center of the most prominent spot.", "Are the spots circular or irregular in shape?", "Have any of the lesions coalesced to form larger patches?", "Is the leaf surface distorted or puckered around the spots?", "What is the approximate diameter of the spots?"], "diagnosis_templates": ["What disease is causing these bird's eye spots on the tea leaf?", "Identify the condition affecting this plant.", "Based on the symptoms, what is the likely diagnosis for this tea leaf?"], "counterfactual_templates": ["If the spots were much larger, zonate, and grayish-brown, what disease would it be instead of leaf scab?", "If the lesions were raised, velvety, and orange-red, what would be the likely cause?", "If the spots were angular, black, and lacked a distinct border, what type of damage might you suspect?"], "severity_templates": ["What is the estimated percentage of leaf area covered by leaf scab lesions?", "Based on the lesion coverage, would you classify this infection as mild, moderate, or severe?", "Is the severity of the infection high enough to cause defoliation?"], "confounders": ["algal_leaf_spot", "gray_blight", "helopeltis_damage"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.4, "lighting_notes": "Use diffuse, even lighting. Avoid hard shadows and overexposure from direct sunlight, which can wash out the color details of the lesion's center and border.", "occlusion_notes": "The symptomatic leaf should be the primary focus and largely unobstructed. If multiple leaves are in the frame, ensure the one with the clearest symptoms is well-focused."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T11:30:00Z", "updated_at": "2023-10-27T11:30:00Z", "sources": ["APS Compendium of Tea Diseases and Pests", "CABI Crop Protection Compendium", "University extension publications on tea pathology", "Peer-reviewed plant pathology journals"]}}
+{"schema_version": "1.0.0", "disease_id": "tea.pest_mite.spider_mites", "aliases": ["red spider mite", "tea red spider mite"], "crop": {"common_name": "tea", "scientific_name": "Camellia sinensis", "family": "Theaceae"}, "condition": {"common_name": "spider mites", "scientific_name": "Oligonychus coffeae", "alt_names": ["Tetranychus spp."], "pathogen": {"type": "arthropod", "taxonomy": {"kingdom": "Animalia", "phylum": "Arthropoda", "class": "Arachnida", "order": "Trombidiformes", "family": "Tetranychidae", "genus": "Oligonychus", "species": "coffeae"}}}, "issue_type": "pest_mite", "transmission": {"vectors": [], "dispersal": ["wind", "infested plant material", "clothing/equipment of workers"], "overwintering": ["eggs and adult females on leaves and stems", "in bark crevices"]}, "environmental_risk": {"risk_factors": ["hot and dry weather", "prolonged drought", "dusty conditions", "low humidity", "lack of natural enemies due to broad-spectrum insecticide use"], "temp_c_day": [25, 35], "temp_c_night": [], "relative_humidity_pct": [30, 60], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf surface shows fine, pale stippling. Leaves may appear slightly dusty. Webbing is absent or very sparse and difficult to see.", "moderate": "11-40% of leaf surface is affected. Stippling coalesces, causing leaves to develop a distinct bronze or coppery sheen. Fine webbing is visible on close inspection, especially on the leaf underside.", "severe": ">40% of leaf surface is heavily bronzed, brown, or desiccated. Extensive webbing covers leaves and may envelop shoot tips. Premature leaf drop is evident.", "notes": "Severity is measured by the percentage of the upper leaf surface showing feeding damage (stippling, bronzing). The presence and extent of webbing are also key indicators of a severe infestation."}, "symptoms": {"leaves": ["Fine, pale yellow or white stippling on the upper leaf surface from feeding.", "Leaves lose their glossy appearance and become dull.", "Stippling coalesces into larger bronze, brown, or coppery patches as infestation increases.", "Fine, silk-like webbing is visible on the underside of leaves, between leaves, and along petioles.", "In severe cases, leaves turn brown, become brittle, and may curl downwards.", "Premature leaf drop (defoliation) occurs under heavy pressure."], "stems": ["Webbing may cover young stems and shoot tips in heavy infestations."], "fruit": [], "roots": [], "whole_plant": ["Stunted growth of new shoots.", "The entire plant can appear stressed, dusty, and discolored."], "signs_microscopic_or_visible": ["Tiny, reddish or yellowish mites (adults, nymphs) visible on the underside of leaves, often requiring a hand lens.", "Tiny, spherical eggs, often laid along the midrib on the leaf underside.", "Cast skins from molting mites may be present on the leaf surface."]}, "lookalikes": [{"condition_name": "helopeltis_damage", "condition_id": "tea.pest_insect.helopeltis_damage", "key_differences": ["Helopeltis causes discrete, circular, water-soaked spots that turn dark brown/black and necrotic, whereas mite damage is a diffuse stippling or bronzing.", "Helopeltis spots are often larger and more distinct than mite feeding marks.", "Webbing is a key sign of spider mites and is completely absent with Helopeltis damage.", "Helopeltis can cause dieback of young shoots, a symptom less common with mites."]}, {"condition_name": "gray_blight", "condition_id": "tea.fungal.gray_blight", "key_differences": ["Gray blight forms distinct lesions, often with concentric rings (a 'target' appearance) and a grayish-white center, unlike the uniform bronzing from mites.", "Mite damage is a surface discoloration from feeding, while gray blight is a necrotic tissue lesion caused by a fungus.", "Tiny black dots (pycnidia) may be visible within gray blight lesions, which are absent in mite damage.", "Spider mites produce fine webbing; fungal diseases do not."]}], "management": {"cultural": ["Maintain high humidity through overhead irrigation or misting where feasible, as mites dislike moisture.", "Avoid water stress by providing adequate irrigation during dry periods.", "Control dust from nearby roads, as it encourages mite outbreaks.", "Prune and destroy heavily infested branches to reduce mite populations."], "biological": ["Conserve and encourage natural predators like predatory mites (e.g., Phytoseiidae family), ladybugs, and lacewings.", "Avoid using broad-spectrum insecticides that kill natural enemies."], "chemical": ["Apply selective miticides (acaricides) when mite populations reach economic thresholds.", "Ensure thorough spray coverage, especially on the undersides of leaves where mites congregate.", "Rotate miticides with different modes of action to prevent resistance development."], "notes": "An Integrated Pest Management (IPM) approach is most effective, combining cultural controls and conservation of natural enemies with judicious use of acaricides."}, "qa_seeds": {"verification_templates": ["Is there fine, silk-like webbing on the leaf?", "Can you see tiny white or yellow speckles on the upper surface of the leaf?", "Does the leaf have a bronze or coppery discoloration?", "Is the leaf surface dull instead of glossy?", "Are there tiny moving specks, possibly mites, on the underside of the leaf?", "Is the damage composed of tiny dots rather than large, distinct spots?"], "attribute_templates": ["What is the color of the discoloration on the leaf?", "Describe the pattern of the damage on the leaf surface.", "Is there webbing present? If so, where is it located?", "Are the symptoms on the top or bottom of the leaf?", "What is the overall appearance of the plant?", "How is the damage distributed across the leaf: is it uniform, patchy, or in discrete spots?"], "diagnosis_templates": ["What pest causes fine stippling and webbing on tea leaves?", "Based on the bronzing and presence of tiny specks, what is affecting this plant?", "What is the diagnosis for a tea plant with dull leaves covered in fine webs?"], "counterfactual_templates": ["If this were Helopeltis damage, what would the spots look like?", "What would you see if this were gray blight instead of a mite infestation?"], "severity_templates": ["What percentage of the leaf surface is covered in stippling or bronzing?", "Based on the amount of webbing and discoloration, how severe is this spider mite infestation?", "Is the leaf damage minor stippling or widespread browning?"], "confounders": ["helopeltis_damage", "gray_blight"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.4, "lighting_notes": "Use even, diffuse lighting. Avoid harsh direct sunlight or deep shadows which can obscure fine details like stippling and webbing.", "occlusion_notes": "The affected leaf surface should be clearly visible. A macro or close-up shot is ideal to capture the fine texture of the damage and any visible mites or webbing."}, "provenance": {"created_by": "AI Plant Pathologist", "reviewed_by": "VQA Dataset Designer", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University extension guides for tea pests", "CABI Crop Protection Compendium", "APS Compendium of Tea Diseases and Pests", "General acarology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "tomato.disease_bacterial.bacterial_spot", "aliases": ["bacterial leaf spot", "Xanthomonas spot"], "crop": {"common_name": "tomato", "scientific_name": "Solanum lycopersicum", "family": "Solanaceae"}, "condition": {"common_name": "bacterial spot", "scientific_name": "Xanthomonas spp. (e.g., X. perforans, X. euvesicatoria, X. vesicatoria, X. gardneri)", "alt_names": [], "pathogen": {"type": "disease_bacterial", "taxonomy": {"kingdom": "Bacteria", "phylum": "Pseudomonadota", "class": "Gammaproteobacteria", "order": "Lysobacterales", "family": "Lysobacteraceae", "genus": "Xanthomonas", "species": ""}}}, "issue_type": "disease_bacterial", "transmission": {"vectors": ["humans (via tools, hands)"], "dispersal": ["rain splash", "wind-driven rain", "overhead irrigation", "infected transplants", "contaminated seed"], "overwintering": ["infected plant debris", "volunteer tomato plants", "contaminated seeds", "solanaceous weeds"]}, "environmental_risk": {"risk_factors": ["high humidity", "prolonged leaf wetness", "warm temperatures", "poor air circulation", "overhead irrigation"], "temp_c_day": [24, 30], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 4}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area affected with small, scattered lesions. No significant defoliation.", "moderate": "11-40% of leaf area affected. Some lesions are coalescing. Minor yellowing and leaf drop may be present.", "severe": ">40% of leaf area affected. Widespread lesion coalescence, significant chlorosis (yellowing), and heavy defoliation. Fruit symptoms are prominent.", "notes": "Severity is assessed on the most affected leaves and the overall canopy. The presence and density of fruit lesions should also be considered."}, "symptoms": {"leaves": ["Initial symptoms are small (<3 mm), dark green to black, water-soaked circular spots.", "Lesions become angular as their expansion is limited by small leaf veins.", "A greasy or oily appearance is often visible on the lesion surface, especially on the leaf underside.", "A narrow, yellow halo may surround the dark lesions, but can be faint or absent.", "Centers of older lesions may dry out, turn tan or grayish-brown, and crack or fall out, creating a 'shot-hole' effect.", "In severe cases, lesions merge, causing large blighted areas and leaf drop (defoliation), starting with lower leaves."], "stems": ["Stem lesions are elongated, dark brown to black, and may appear slightly raised or scabby."], "fruit": ["On green fruit, spots start as small, slightly raised, water-soaked pimples.", "Lesions enlarge to become dark brown to black, scabby, and slightly sunken, often up to 8 mm.", "The scabby texture is a key diagnostic feature on fruit.", "A subtle water-soaked halo may surround the scabby fruit lesion.", "Fruit spots are typically superficial and do not penetrate deep into the fruit flesh."], "roots": [], "whole_plant": ["Stunted growth in young, heavily infected plants.", "Significant defoliation, especially of lower leaves, can expose fruit to sunscald."], "signs_microscopic_or_visible": ["Bacterial streaming from cut lesion tissue when placed in water and viewed under a microscope."]}, "lookalikes": [{"condition_name": "septoria leaf spot", "condition_id": "tomato.disease_fungal.septoria_leaf_spot", "key_differences": ["Septoria lesions are circular with distinct tan or gray centers and dark brown borders.", "Tiny black specks (pycnidia) are often visible in the center of Septoria lesions.", "Bacterial spot lesions are more angular, darker overall (often black), and lack pycnidia.", "Bacterial spot lesions often have a greasy or water-soaked appearance that Septoria lacks."]}, {"condition_name": "early blight", "condition_id": "tomato.disease_fungal.early_blight", "key_differences": ["Early blight lesions are larger and have a characteristic 'target-like' pattern of concentric rings.", "Bacterial spot lesions are smaller, more angular, and do not have the target-ring pattern.", "Early blight typically produces a more prominent, well-defined yellow halo around lesions.", "Stem lesions from early blight (collar rot) are much larger and more destructive than the small lesions of bacterial spot."]}, {"condition_name": "flea beetle injury", "condition_id": "tomato.pest_damage.flea_beetle_injury", "key_differences": ["Flea beetle damage consists of numerous small, round 'shot-holes' where leaf tissue has been eaten away completely.", "Bacterial spot lesions are solid necrotic spots first; the centers may fall out later, but the initial lesion is not a hole.", "Flea beetle injury lacks any water-soaked appearance, yellow halos, or greasy texture."]}], "management": {"cultural": ["Use certified disease-free seed and transplants.", "Practice a 3-4 year crop rotation with non-solanaceous crops.", "Improve air circulation via proper plant spacing, staking, and pruning.", "Avoid overhead irrigation; use drip or furrow irrigation to keep foliage dry.", "Remove and destroy infected plant debris at the end of the season.", "Sanitize tools, stakes, and equipment between plants or rows."], "biological": ["Application of bio-fungicides containing *Bacillus subtilis* or other beneficial microbes may suppress pathogen populations."], "chemical": ["Preventative applications of copper-based bactericides (e.g., copper hydroxide).", "Tank-mixing copper with mancozeb can improve efficacy and manage resistance.", "Application of plant defense inducers like acibenzolar-S-methyl (Actigard)."], "notes": "Chemical control is most effective when applied preventatively before disease onset. Widespread copper resistance in bacterial populations can limit the effectiveness of copper-only sprays."}, "qa_seeds": {"verification_templates": ["Are there small, dark, angular spots on this leaf?", "Does this fruit show any small, raised, scabby lesions?", "Can you see any water-soaked or greasy-looking spots on the foliage?", "Do the centers of the leaf spots appear dried out, tan, and cracked?", "Is there evidence of a 'shot-hole' effect where lesion centers have fallen out?"], "attribute_templates": ["What is the shape of the leaf lesions?", "What color are the spots on the fruit?", "Describe the texture of the spots on the leaves.", "Is a yellow halo visible around the dark leaf spots?", "Are the lesions on the leaves circular with target rings or are they small and angular?", "Are there tiny black dots in the center of the leaf spots?"], "diagnosis_templates": ["Based on the small, angular, greasy-looking spots on the leaves, what disease is this?", "What bacterial disease causes scabby, raised spots on tomato fruit?", "The combination of angular leaf spots and scabby fruit lesions is characteristic of what disease?"], "counterfactual_templates": ["If the leaf spots had distinct target-like rings, what disease might it be instead?", "What would the symptoms look like if this were Septoria leaf spot instead of bacterial spot?"], "severity_templates": ["What percentage of this leaf's surface is covered by dark, angular lesions?", "How would you rate the severity of this infection: mild, moderate, or severe?", "Is there significant leaf drop on the lower part of the plant?"], "confounders": ["septoria_leaf_spot", "early_blight", "flea_beetle_injury"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Diffuse, even lighting is optimal. Avoid harsh shadows or direct sunlight that can obscure the 'water-soaked' or 'greasy' appearance of lesions.", "occlusion_notes": "The primary symptomatic leaf or fruit should be clearly visible and not obscured by other plant parts. A close-up of a representative lesion is highly valuable."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "N/A", "created_at": "2023-10-27T11:30:00Z", "updated_at": "2023-10-27T11:30:00Z", "sources": ["APS Compendium of Tomato Diseases and Pests, 2nd Edition", "University Extension Plant Pathology Publications (e.g., Cornell, Purdue, UC IPM)"]}}
+{"schema_version": "1.0.0", "disease_id": "tomato.disease_fungal.cercospora_leaf_spot", "aliases": ["Gray leaf spot"], "crop": {"common_name": "tomato", "scientific_name": "Solanum lycopersicum", "family": "Solanaceae"}, "condition": {"common_name": "cercospora leaf spot", "scientific_name": "Cercospora spp.", "alt_names": ["Gray leaf spot"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Capnodiales", "family": "Mycosphaerellaceae", "genus": "Cercospora", "species": ""}}}, "issue_type": "disease_fungal", "transmission": {"vectors": ["wind", "rain splash", "irrigation water"], "dispersal": ["airborne conidia", "contaminated tools", "human activity"], "overwintering": ["infected crop debris", "soil", "alternate weed hosts", "infected seed"]}, "environmental_risk": {"risk_factors": ["prolonged leaf wetness", "high humidity", "poor air circulation", "warm temperatures", "overhead irrigation"], "temp_c_day": [20, 30], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 8}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "< 5% of leaf area affected with distinct lesions.", "moderate": "5-25% of leaf area affected, some lesion coalescence, minor yellowing.", "severe": "> 25% of leaf area affected, extensive lesion coalescence, significant yellowing and defoliation, especially on lower leaves.", "notes": "Severity is assessed on individual symptomatic leaves or averaged across the visible canopy. Focus on the most affected leaves for a worst-case assessment."}, "symptoms": {"leaves": ["Initial symptoms are small, circular, water-soaked spots, primarily on older, lower leaves.", "Lesions enlarge to 2-6 mm in diameter.", "Mature lesions have a distinct tan to grayish-white center.", "A dark brown to black border surrounds the necrotic center.", "The center of the lesion may become brittle and crack or fall out, creating a 'shot-hole' appearance.", "A diffuse yellow halo may sometimes surround the lesion, but is often absent.", "In severe cases, entire leaves turn yellow, then brown, and wither.", "Symptoms progress from the bottom of the plant upwards."], "stems": ["Elongated, sunken lesions with gray centers and dark borders can form on petioles and stems."], "fruit": ["Fruit infection is rare but can occur, appearing as small, sunken, dark spots on the calyx end."], "roots": [], "whole_plant": ["Significant defoliation of the lower canopy, exposing fruit to sunscald.", "Reduced plant vigor and yield in severe infections."], "signs_microscopic_or_visible": ["Under high humidity and with a hand lens, a sparse, fuzzy, grayish mold (conidiophores and conidia) may be visible in the lesion center."]}, "lookalikes": [{"condition_name": "septoria leaf spot", "condition_id": "tomato.disease_fungal.septoria_leaf_spot", "key_differences": ["Septoria lesions are typically smaller (1-3 mm) than Cercospora lesions.", "Septoria lesions contain tiny, black, pimple-like structures (pycnidia) in the center, which are absent in Cercospora.", "The 'shot-hole' effect is less common in Septoria compared to Cercospora.", "Septoria lesions often have a more defined, dark brown margin with a less prominent gray center."]}, {"condition_name": "early blight", "condition_id": "tomato.disease_fungal.early_blight", "key_differences": ["Early blight lesions are much larger and feature a characteristic 'target' or 'bullseye' pattern of concentric rings.", "Early blight lesions are dark brown to black and typically surrounded by a prominent yellow halo.", "Cercospora lesions are smaller, have a gray/tan center, and lack the distinct target pattern."]}, {"condition_name": "bacterial_spot", "condition_id": "tomato.disease_bacterial.bacterial_spot", "key_differences": ["Bacterial spot lesions are often angular, appearing limited by leaf veins, whereas Cercospora spots are more circular.", "Bacterial spots start as dark, water-soaked, greasy-looking areas and may not develop a pale center.", "The 'shot-hole' effect in bacterial spot is often due to tissue tearing rather than a brittle center falling out."]}], "management": {"cultural": ["Use certified disease-free seed and resistant cultivars if available.", "Practice crop rotation with non-host crops (non-Solanaceae) for at least 2 years.", "Remove and destroy infected plant debris after harvest.", "Improve air circulation through proper plant spacing and pruning.", "Avoid overhead irrigation; use drip or furrow irrigation to keep foliage dry.", "Control weed hosts in and around the growing area."], "biological": ["Application of bio-fungicides containing strains of *Bacillus subtilis* or *Trichoderma* may suppress the pathogen."], "chemical": ["Apply protective fungicides containing chlorothalonil, mancozeb, or copper compounds.", "Systemic fungicides (e.g., strobilurins, triazoles) can also be effective but require resistance management.", "Begin applications when conditions are favorable for disease or at first sign of symptoms."], "notes": "An integrated pest management (IPM) approach combining cultural, biological, and chemical strategies is most effective for long-term control."}, "qa_seeds": {"verification_templates": ["Is there a circular leaf spot with a tan or gray center on this leaf?", "Does the spot on the leaf have a dark, distinct border?", "Can you see a 'shot-hole' where the center of a lesion has fallen out?", "Are the oldest, lowest leaves the most affected?", "Is the plant showing signs of lower-canopy defoliation?", "Are the spots on the leaves generally circular in shape?"], "attribute_templates": ["What color is the center of the lesions on the leaves?", "Describe the border of the leaf spots.", "Are the lesions concentrated on the upper or lower part of the plant?", "What is the approximate diameter of the largest spot in millimeters?", "Is there a yellow halo visible around the spots?", "What is the shape of the spots on the leaf?"], "diagnosis_templates": ["What fungal disease causes circular spots with gray centers, dark borders, and a shot-hole appearance on tomato leaves?", "Based on the symptoms shown, what is the most likely disease affecting this tomato plant?", "What pathogen is responsible for these symptoms?"], "counterfactual_templates": ["If these spots had a bullseye pattern of concentric rings, what disease would it be instead?", "If the spots were smaller and had tiny black dots in the center, what would be the diagnosis?", "If the spots were angular and greasy-looking, what type of pathogen would be suspected?"], "severity_templates": ["How severe is the Cercospora leaf spot infection on this leaf?", "What percentage of this leaf's surface is covered by lesions?", "Is the disease severity mild, moderate, or severe based on the visible symptoms?"], "confounders": ["septoria_leaf_spot", "early_blight", "bacterial_spot"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Use diffuse, even lighting. Avoid harsh shadows or direct sunlight that can obscure lesion color and texture.", "occlusion_notes": "Ensure the primary symptomatic leaf is not significantly occluded by other leaves, stems, or background objects."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University Extension Plant Pathology Guides", "APS Compendium of Tomato Diseases and Pests", "General Plant Pathology Textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "tomato.disease_fungal.early_blight", "aliases": ["Alternaria leaf spot", "target spot of tomato"], "crop": {"common_name": "tomato", "scientific_name": "Solanum lycopersicum", "family": "Solanaceae"}, "condition": {"common_name": "early blight", "scientific_name": "Alternaria solani", "alt_names": ["Alternaria tomatophila"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Pleosporales", "family": "Pleosporaceae", "genus": "Alternaria", "species": "solani"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["wind", "rain splash", "irrigation water", "contaminated equipment", "infected seed"], "overwintering": ["infected plant debris", "soil", "infected seed", "solanaceous weeds"]}, "environmental_risk": {"risk_factors": ["high humidity", "prolonged leaf wetness", "warm temperatures", "plant stress (e.g., nutrient deficiency, heavy fruit load)"], "temp_c_day": [24, 29], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 9}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "< 5% of total foliage affected; few, small lesions, primarily on lower leaves.", "moderate": "5-25% of foliage affected; lesions present on lower and middle leaves, some leaf yellowing and drop.", "severe": "> 25% of foliage affected; extensive lesion development, significant defoliation, stem and fruit lesions common.", "notes": "Severity is assessed based on the percentage of symptomatic leaf area across the entire plant. Stem and fruit symptoms contribute to a higher severity rating."}, "symptoms": {"leaves": ["Starts as small, dark brown to black spots on lower, older leaves.", "Lesions enlarge to 0.5-1.5 cm in diameter.", "Lesions develop characteristic concentric rings, creating a 'target' or 'bull's-eye' appearance.", "A distinct yellow halo often surrounds the dark lesion.", "Affected leaves turn yellow (chlorotic) and may drop prematurely, starting from the bottom of the plant.", "Lesions can merge, causing large blighted areas."], "stems": ["Dark, slightly sunken, oval-shaped lesions can form on stems, often near the soil line (collar rot).", "Stem lesions also exhibit the characteristic concentric rings."], "fruit": ["Dark, leathery, sunken lesions form on the fruit, typically at the stem end (calyx).", "Fruit lesions also show concentric rings.", "In humid conditions, a velvety black mass of fungal spores may cover fruit lesions."], "roots": [], "whole_plant": ["Progressive defoliation from the bottom of the plant upwards.", "Reduced plant vigor and yield."], "signs_microscopic_or_visible": ["Velvety, dark brown or black fungal growth (spores) may be visible in the center of lesions under high humidity."]}, "lookalikes": [{"condition_name": "septoria_leaf_spot", "condition_id": "tomato.disease_fungal.septoria_leaf_spot", "key_differences": ["Septoria lesions are smaller (1-3 mm) and more numerous than early blight lesions.", "Septoria lesions have a tan or gray center with a dark brown border, but lack the distinct concentric rings of early blight.", "Tiny black specks (pycnidia) are often visible in the center of Septoria lesions."]}, {"condition_name": "late_blight", "condition_id": "tomato.disease_oomycete.late_blight", "key_differences": ["Late blight lesions are larger, water-soaked, and irregularly shaped with a greasy appearance.", "Late blight lesions lack the 'target' or 'bull's-eye' rings of early blight.", "A white, fuzzy mold (sporangia) often develops on the underside of late blight lesions in cool, moist conditions.", "Late blight progresses much more rapidly, capable of destroying a plant in days."]}, {"condition_name": "target_spot", "condition_id": "tomato.disease_fungal.target_spot", "key_differences": ["Target spot lesions often have a lighter tan center with more defined, darker concentric rings than early blight.", "Lesions may have a 'shot-hole' appearance as the center falls out.", "Target spot lesions tend to be smaller and more numerous than classic early blight lesions."]}, {"condition_name": "bacterial_spot", "condition_id": "tomato.disease_bacterial.bacterial_spot", "key_differences": ["Bacterial spot lesions are typically small, angular (limited by leaf veins), and initially water-soaked.", "Lesions lack the concentric rings of early blight and often have a greasy appearance.", "Bacterial spots may not have a prominent yellow halo."]}], "management": {"cultural": ["Use certified disease-free seed and transplants.", "Rotate crops, avoiding solanaceous plants for 2-3 years.", "Maintain proper plant spacing for good air circulation.", "Use mulch to reduce soil splash onto lower leaves.", "Prune and remove lower, infected leaves.", "Avoid overhead irrigation; use drip irrigation instead.", "Ensure balanced plant nutrition."], "biological": ["Application of bio-fungicides containing Bacillus subtilis or Trichoderma species."], "chemical": ["Application of preventative or curative fungicides containing active ingredients like chlorothalonil, mancozeb, or copper-based compounds.", "Follow label instructions and alternate fungicide classes to prevent resistance."], "notes": "Integrated pest management (IPM) combining cultural, biological, and chemical strategies is most effective. Fungicide applications are most effective when applied preventatively based on weather forecasts."}, "qa_seeds": {"verification_templates": ["Does this leaf show signs of early blight?", "Is the symptom on this tomato stem consistent with early blight?", "Can you confirm the presence of target-like lesions on these leaves?", "Is this an example of early blight on a tomato fruit?", "Are the lower leaves of this plant infected with early blight?"], "attribute_templates": ["What is the shape of the lesions on this leaf?", "Do the spots on this leaf have concentric rings?", "Is there a yellow halo surrounding the dark spots?", "Where on the plant are the symptoms most severe?", "Describe the appearance of the lesion on the fruit's stem end.", "Are the leaves yellowing around the spots?"], "diagnosis_templates": ["What disease is causing the bull's-eye spots on this tomato leaf?", "Based on the progressive lower-leaf yellowing and target spots, what is the likely diagnosis?", "Identify the fungal disease on this tomato plant."], "counterfactual_templates": ["If the spots were small, gray-centered, and had tiny black dots inside, what disease would it be instead of early blight?", "If the lesions were large, greasy, and had white mold on the underside, what would be the diagnosis?"], "severity_templates": ["How severe is the early blight infection on this plant?", "What percentage of the leaf area is affected by lesions?", "Would you classify this infection as mild, moderate, or severe?"], "confounders": ["septoria_leaf_spot", "late_blight", "target_spot", "bacterial_spot"]}, "data_requirements": {"min_resolution_px": 480, "min_roi_fraction": 0.2, "lighting_notes": "Even, diffuse lighting is preferred. Avoid harsh shadows or direct sunlight that can obscure lesion details like concentric rings or halos.", "occlusion_notes": "The primary symptomatic area (e.g., the leaf with target spots) should be clearly visible and not significantly occluded by other leaves, stems, or background objects."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "N/A", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University Extension Plant Pathology Guides", "APS Compendium of Tomato Diseases", "General Plant Pathology Textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "tomato.disease_fungal.fusarium_wilt", "aliases": ["Tomato wilt", "Fusarium wilt of tomato"], "crop": {"common_name": "Tomato", "scientific_name": "Solanum lycopersicum", "family": "Solanaceae"}, "condition": {"common_name": "Fusarium wilt", "scientific_name": "Fusarium oxysporum f. sp. lycopersici", "alt_names": [], "pathogen": {"type": "fungus", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Sordariomycetes", "order": "Hypocreales", "family": "Nectriaceae", "genus": "Fusarium", "species": "oxysporum"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": ["Infected transplants", "Contaminated equipment (tillage, stakes)", "Human activity (boots, tools)"], "dispersal": ["Soilborne chlamydospores", "Water (irrigation, surface runoff)", "Infected seed (less common)"], "overwintering": ["As chlamydospores in soil for many years", "In infected plant debris", "On roots of some non-host weeds"]}, "environmental_risk": {"risk_factors": ["Warm soil temperatures", "Acidic soil (pH 5.0-5.6)", "High nitrogen, low potassium fertility", "Poorly drained or compacted soil", "Root-knot nematode infestation (creates wounds for entry)"], "temp_c_day": [25, 32], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "One or a few lower leaves are yellowing or drooping, often on one side of the plant or a single branch.", "moderate": "Significant yellowing and wilting affecting multiple branches or a major portion of the lower to middle plant. Some stunting may be visible.", "severe": "Widespread wilting of the entire plant, extensive browning and leaf drop, severe stunting, or plant death.", "notes": "Severity is assessed based on the proportion of the plant showing wilting and yellowing symptoms, as this is a systemic vascular disease. It often progresses from the bottom of the plant upwards."}, "symptoms": {"leaves": ["Yellowing of lower, older leaves, often starting on one side of a leaf or branch (unilateral).", "Affected leaves wilt during the day and may recover slightly at night initially.", "Petioles (leaf stalks) bend downwards, creating a drooping appearance.", "Leaves eventually turn brown, wither, and die but often remain attached to the stem."], "stems": ["No external lesions, spots, or cankers are typically visible on the stem.", "When the main stem is cut open lengthwise near the soil line, a distinct dark brown discoloration of the vascular tissue (xylem) is visible.", "The pith (the central core of the stem) remains white or cream-colored."], "fruit": ["Fruit development may be stunted or fail completely on heavily infected plants.", "No direct symptoms, such as lesions or rot, appear on the fruit itself."], "roots": ["In advanced stages, some root decay and browning may occur, but early root symptoms are not diagnostic."], "whole_plant": ["Stunting is a common symptom, especially if infected when young.", "Unilateral wilting, where one side of the plant or a single branch wilts while the other appears healthy, is a classic symptom.", "The entire plant eventually wilts permanently and dies."], "signs_microscopic_or_visible": ["No visible fungal growth (e.g., mold, mildew) is present on the exterior of the plant."]}, "lookalikes": [{"condition_name": "Late blight", "condition_id": "tomato.disease_fungal.late_blight", "key_differences": ["Late blight causes large, dark, water-soaked lesions on leaves and dark brown lesions on stems, which are absent in Fusarium wilt.", "Late blight can show fuzzy white mold on the underside of leaf lesions in humid conditions; Fusarium shows no external signs.", "Late blight progresses extremely rapidly, killing foliage in days, while Fusarium wilt is typically a slower decline.", "Fusarium wilt symptoms start at the bottom of the plant and move up; Late blight can start anywhere on the plant."]}, {"condition_name": "Yellowing symptom", "condition_id": "tomato.abiotic.yellowing_symptom", "key_differences": ["Yellowing from nutrient deficiency (e.g., nitrogen) is typically symmetrical, affecting all lower leaves evenly, not one-sided.", "Nutrient deficiency does not cause wilting unless extremely severe.", "Cutting the stem of a nutrient-deficient plant will not reveal the brown vascular discoloration characteristic of Fusarium wilt."]}, {"condition_name": "Spider mites", "condition_id": "tomato.pest.spider_mites", "key_differences": ["Spider mite damage appears as fine, yellow stippling or tiny dots on leaves, not large, uniform yellowed areas.", "Fine webbing is often visible on the undersides of leaves with spider mites.", "Spider mite damage does not cause the plant to wilt systemically.", "The cause (tiny mites) may be visible with magnification on the leaf underside."]}], "management": {"cultural": ["Plant certified disease-free seeds and transplants.", "Select resistant tomato varieties (look for 'F' in the variety code, indicating resistance to race 1, 'F2' for races 1 and 2, etc.).", "Rotate crops for at least 3-4 years, avoiding other solanaceous hosts.", "Maintain soil pH between 6.5 and 7.0 to suppress the pathogen.", "Sanitize all tools, stakes, and equipment between uses.", "Remove and destroy infected plants immediately to reduce soil inoculum."], "biological": ["Inoculating soil with beneficial microbes like *Trichoderma* spp. or non-pathogenic *Fusarium* strains can suppress the pathogen."], "chemical": ["Pre-plant soil fumigation is effective but typically only used in large-scale commercial production.", "No effective foliar fungicides are available for treatment, as the pathogen is inside the plant's vascular system.", "Soil-drench fungicides may offer some protection but are not curative once infection is established."], "notes": "The most effective management strategy is prevention through the use of resistant varieties and good cultural practices."}, "qa_seeds": {"verification_templates": ["Is the tomato plant in the image wilting?", "Are the lower leaves of this plant yellow?", "Does the image show a plant with drooping leaves on only one side?", "Can you see any yellowing at the base of this tomato plant?", "Is this plant stunted compared to a healthy one?"], "attribute_templates": ["What part of the plant is showing symptoms?", "Is the yellowing on the lower or upper leaves?", "Describe the pattern of wilting on the plant.", "Are there any spots or lesions on the stem?", "Is the wilting symmetrical or one-sided?", "What color are the affected leaves?"], "diagnosis_templates": ["Given the lower leaf yellowing and one-sided wilt, what is wrong with this tomato plant?", "Does this tomato plant have Fusarium wilt?", "What soilborne disease causes vascular browning and wilting in tomatoes?"], "counterfactual_templates": ["If there was fuzzy white mold under the leaves, would this still be Fusarium wilt?", "If the yellowing was in a stippled pattern, what would be the likely cause?", "Would this be Fusarium wilt if the symptoms started on the newest, top leaves?"], "severity_templates": ["How severe is the wilt on this plant?", "On a scale of mild to severe, how would you rate this infection?", "What is the severity of the Fusarium wilt symptoms shown in the image?"], "confounders": ["yellowing_symptom", "late_blight", "spider_mites"]}, "data_requirements": {"min_resolution_px": 480, "min_roi_fraction": 0.4, "lighting_notes": "Use even, diffuse lighting. Avoid harsh midday sun that creates deep shadows, which can obscure leaf color and make it difficult to assess wilting.", "occlusion_notes": "The entire plant, especially the base and lower leaves, should be clearly visible. Avoid images where symptoms are obscured by heavy weed pressure, neighboring plants, or cages."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["APS Compendium of Tomato Diseases and Pests", "University Extension Plant Pathology Guides", "General Plant Pathology Textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "tomato.unknown.pest_damage", "aliases": ["insect damage", "arthropod injury", "bug damage"], "crop": {"common_name": "tomato", "scientific_name": "Solanum lycopersicum", "family": "Solanaceae"}, "condition": {"common_name": "Pest Damage", "scientific_name": null, "alt_names": ["Insect Injury", "Mite Damage"], "pathogen": {"type": "arthropod", "taxonomy": {"kingdom": "Animalia", "phylum": "Arthropoda", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "unknown", "transmission": {"vectors": ["Direct feeding by adult or larval stages", "Wind dispersal (for small pests like mites)", "Movement on contaminated equipment or clothing"], "dispersal": ["Flight (for winged insects)", "Crawling", "Wind currents"], "overwintering": ["In crop debris", "In soil as eggs, larvae, pupae, or adults", "On nearby weeds or alternative host plants"]}, "environmental_risk": {"risk_factors": ["Presence of alternative weed hosts", "Monoculture planting", "Warm, dry conditions (favors mites)", "High humidity (can favor some chewing pests)", "Lack of natural predators"], "temp_c_day": [], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area affected by chewing, stippling, or mining.", "moderate": "11-40% of leaf area affected; some leaf curling or distortion may be present.", "severe": ">40% of leaf area affected; significant defoliation, stunted growth, or direct damage to a majority of fruit.", "notes": "Severity is measured by the total percentage of photosynthetic area lost or damaged across the plant. For fruit damage, it can be qualitative based on marketability."}, "symptoms": {"leaves": ["Irregularly shaped holes chewed in leaves, or skeletonization leaving only veins.", "Fine, pale yellow or white speckles (stippling) on the upper leaf surface.", "Winding, discolored trails or 'mines' within the leaf tissue.", "Leaves are distorted, curled, or puckered.", "Presence of sticky 'honeydew' which may be colonized by sooty mold.", "Fine, silk-like webbing, especially on the underside of leaves and between stems."], "stems": ["Boring holes or tunnels visible in stems.", "Girdling or chewing marks on the stem surface."], "fruit": ["Superficial scars, blemishes, or 'stings' on the fruit surface.", "Deep holes or tunnels bored into the fruit, often with frass (excrement) present.", "Deformed or cat-faced fruit development due to early feeding damage."], "roots": [], "whole_plant": ["Wilting of the entire plant despite adequate water, if stem borers or root feeders are present.", "Stunted or poor overall growth."], "signs_microscopic_or_visible": ["Visible insects, larvae (caterpillars), or mites on leaves, stems, or fruit.", "Presence of eggs, often in clusters, on the underside of leaves.", "Dark specks of frass (insect excrement) on leaves or near feeding sites."]}, "lookalikes": [{"condition_name": "flea_beetle_injury", "condition_id": "tomato.pest.flea_beetle_injury", "key_differences": ["Damage consists of numerous small, round 'shot-holes', rather than large irregular holes or stippling.", "The pest responsible is a small, dark, jumping beetle, which may be visible.", "Damage is most severe on young seedlings and lower leaves."]}, {"condition_name": "spider_mites", "condition_id": "tomato.pest.spider_mites", "key_differences": ["Damage is primarily fine stippling (tiny yellow dots), not holes or mines.", "Fine webbing is a key diagnostic sign, especially on leaf undersides.", "The pests are tiny, mite-like arachnids, not insects.", "Symptoms often start on lower leaves and progress upwards."]}, {"condition_name": "bacterial_spot", "condition_id": "tomato.disease.bacterial_spot", "key_differences": ["Lesions are water-soaked initially, becoming dark, angular, and sometimes greasy in appearance.", "Lesions may have a faint yellow halo, which is absent in pest damage.", "No signs of chewing, mining, or insects/frass are present.", "Symptoms are favored by high humidity and rain, unlike many mite pests."]}], "management": {"cultural": ["Use of floating row covers on young plants to create a physical barrier.", "Regular scouting to detect pest presence early.", "Removal of infested plant parts or entire plants.", "Weed management in and around the garden to reduce alternative hosts.", "Crop rotation to break pest life cycles."], "biological": ["Encourage natural predators like ladybugs, lacewings, and parasitic wasps by planting diverse flowers.", "Release of commercially available predatory insects or mites."], "chemical": ["Application of insecticidal soaps or horticultural oils for soft-bodied insects and mites.", "Use of Bacillus thuringiensis (Bt) for caterpillar control.", "Application of broad-spectrum or systemic insecticides as a last resort, following label instructions."], "notes": "The specific management strategy depends heavily on identifying the pest. Integrated Pest Management (IPM) is the recommended approach."}, "qa_seeds": {"verification_templates": ["Is there evidence of chewing on the leaves?", "Are there any holes, tunnels, or mines visible on the plant?", "Can you see any insects, caterpillars, or webbing on the leaves or stems?", "Is there sticky residue or black mold on the leaves?", "Are the fruit damaged with holes or scars?", "Does it look like something has been eating this plant?"], "attribute_templates": ["Describe the shape and pattern of the holes on the leaves.", "What color are the spots on the leaves?", "Is the damage concentrated on the top or bottom of the plant?", "What type of damage is visible on the fruit?", "Is there any webbing present? If so, where?", "Describe any insects you can see."], "diagnosis_templates": ["What is causing the holes in these tomato leaves?", "Based on the stippling and webbing, what pest is damaging this tomato?", "Why is the fruit deformed and scarred?", "What kind of bug is eating my tomato plant?"], "counterfactual_templates": ["If this were a fungal disease, what would the spots look like instead of holes?", "What would a healthy, undamaged leaf from this plant look like?", "If the damage was caused by hail, how would it differ from this chewing damage?"], "severity_templates": ["What percentage of the total leaf area on the plant is damaged?", "How severe is the pest damage on this leaf?", "On a scale of 1 to 5, how would you rate the insect damage to the fruit?"], "confounders": ["flea_beetle_injury", "spider_mites", "bacterial_spot", "septoria_leaf_spot"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Good, even lighting is crucial. Avoid harsh shadows that can obscure small pests, webbing, or stippling. Overcast days are ideal.", "occlusion_notes": "Ensure the primary symptoms (e.g., chewed holes, stippling) are not obscured by other leaves or branches. Multiple angles, including the underside of leaves, are highly beneficial."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University Extension Pest Management Guides", "APS Compendium of Tomato Diseases and Pests", "General Entomology Textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "tomato.healthy.healthy", "aliases": ["normal", "unaffected", "asymptomatic", "no disease"], "crop": {"common_name": "tomato", "scientific_name": "Solanum lycopersicum", "family": "Solanaceae"}, "condition": {"common_name": "healthy", "scientific_name": null, "alt_names": ["normal growth"], "pathogen": {"type": "physiological", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "healthy", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Optimal growing conditions", "Adequate sunlight (6-8+ hours/day)", "Consistent watering and soil moisture", "Balanced soil nutrition", "Good air circulation"], "temp_c_day": [21, 29], "temp_c_night": [16, 21], "relative_humidity_pct": [60, 80], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Not applicable. Plant is considered healthy.", "moderate": "Not applicable.", "severe": "Not applicable.", "notes": "A plant is considered healthy if it shows no signs of disease, stress, or nutrient deficiency. Any deviation would be classified under a different condition."}, "symptoms": {"leaves": ["Uniformly green color, consistent with the cultivar.", "Leaves are fully expanded and turgid.", "No spots, lesions, discoloration, or necrosis.", "No yellowing (chlorosis) or browning.", "No curling, puckering, or distortion of leaf shape.", "No visible stippling, webbing, or insect trails."], "stems": ["Sturdy, upright, and able to support the plant.", "Consistent green to brownish color without dark streaks or cankers.", "No soft, water-soaked, or discolored areas."], "fruit": ["Smooth, unblemished skin.", "Uniform color development appropriate for the variety and ripeness stage.", "Free from cracks, spots, sunken areas, or mold."], "roots": [], "whole_plant": ["Vigorous and upright growth habit.", "Appropriate size and development for its age and cultivar.", "No general wilting, stunting, or decline."], "signs_microscopic_or_visible": ["No visible fungal growth (e.g., mycelium, powdery mildew).", "No bacterial ooze or slime.", "Absence of insect eggs, larvae, or frass."]}, "lookalikes": [{"condition_name": "Early Blight", "condition_id": "tomato.fungal.early_blight", "key_differences": ["Healthy leaves lack the characteristic dark, circular lesions with a 'target' or 'bullseye' pattern.", "Healthy plants do not show yellowing halos around spots.", "Healthy lower leaves remain green and attached, unlike the premature yellowing and dropping seen in early blight."]}, {"condition_name": "Spider Mites", "condition_id": "tomato.pest.spider_mites", "key_differences": ["Healthy leaves have a smooth, uniformly green surface, not the fine yellow or white stippling caused by mite feeding.", "The undersides of healthy leaves are clean and lack the fine silk webbing produced by spider mites.", "Healthy leaves do not have a dusty or 'bronzed' appearance."]}, {"condition_name": "Yellowing Symptom", "condition_id": "tomato.symptom.yellowing_symptom", "key_differences": ["Healthy leaves maintain a uniform, rich green color, not the pale green or yellow of chlorosis.", "The green color in healthy leaves is consistent across the entire leaf, not patterned between the veins (interveinal chlorosis).", "Healthy plants show no specific pattern of yellowing on old vs. new leaves, which often indicates a nutrient deficiency."]}], "management": {"cultural": ["Select disease-resistant cultivars.", "Ensure proper plant spacing to promote air circulation.", "Water at the base of the plant to keep foliage dry.", "Use well-drained soil and apply balanced fertilizer.", "Practice crop rotation.", "Maintain good sanitation by removing weeds and plant debris."], "biological": [], "chemical": [], "notes": "Management for a healthy plant focuses on preventative cultural practices to maintain vigor and reduce stress, making the plant less susceptible to future issues."}, "qa_seeds": {"verification_templates": ["Is this tomato plant healthy?", "Does this plant show any signs of disease?", "Are the leaves on this plant free of spots and discoloration?", "Is this an example of a normal, healthy tomato leaf?", "Can you confirm that this plant is asymptomatic?"], "attribute_templates": ["What color are the leaves?", "Describe the condition of the stem.", "Are there any blemishes on the leaves?", "Do the leaves appear turgid or wilted?", "Is there any evidence of pests, like webbing or stippling, on the leaves?", "Describe the overall growth habit of the plant."], "diagnosis_templates": ["What is the condition of this tomato plant?", "Is this plant sick or healthy?", "Based on its appearance, provide a diagnosis for this plant.", "Does this plant have any identifiable diseases or disorders?"], "counterfactual_templates": ["If this plant had late blight, what would be different about the leaves and stems?", "What would you see on the leaves if this plant had Septoria leaf spot instead of being healthy?", "How would the leaves look different if this plant had a magnesium deficiency?"], "severity_templates": ["What is the severity level of disease on this plant?", "How would you rate the health of this tomato plant on a scale from sick to healthy?", "Are there any symptoms visible on this plant?"], "confounders": ["early_blight", "spider_mites", "yellowing_symptom", "septoria_leaf_spot"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.4, "lighting_notes": "Use even, diffuse light. Avoid harsh shadows, overexposure, or backlighting that can obscure leaf color and texture.", "occlusion_notes": "The majority of leaves and stems should be clearly visible and in focus. Minimal occlusion from other plants, support structures, or debris."}, "provenance": {"created_by": "Expert Plant Pathologist and VQA Dataset Designer", "reviewed_by": "VQA Content Review Team", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["General university extension plant pathology guides", "APS Compendium of Tomato Diseases and Pests", "Standard horticultural best practices"]}}
+{"schema_version": "1.0.0", "disease_id": "tomato.disease_fungal.late_blight", "aliases": ["Phytophthora blight", "potato blight on tomato"], "crop": {"common_name": "tomato", "scientific_name": "Solanum lycopersicum", "family": "Solanaceae"}, "condition": {"common_name": "late blight", "scientific_name": "Phytophthora infestans", "alt_names": ["Phytophthora blight"], "pathogen": {"type": "disease_oomycete", "taxonomy": {"kingdom": "Stramenopila", "phylum": "Oomycota", "class": "Oomycetes", "order": "Peronosporales", "family": "Peronosporaceae", "genus": "Phytophthora", "species": "P. infestans"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["wind-blown sporangia", "rain splash", "infected transplants", "contaminated equipment"], "overwintering": ["infected potato tubers", "infected tomato volunteers", "plant debris in soil"]}, "environmental_risk": {"risk_factors": ["cool, moist conditions", "prolonged leaf wetness", "high humidity", "dense plant canopy"], "temp_c_day": [15, 21], "temp_c_night": [10, 15], "relative_humidity_pct": [90, 100], "leaf_wetness_hours_threshold": 10}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of total leaf area affected; a few isolated lesions.", "moderate": "11-40% of leaf area affected; multiple lesions coalescing, some stem lesions may be present.", "severe": ">40% of leaf area affected; extensive blighting, stem girdling, fruit rot is common, plant collapse imminent.", "notes": "Severity is assessed on a whole-plant basis, considering the percentage of foliage showing symptoms of necrosis and blighting. Fruit and stem symptoms can significantly increase severity."}, "symptoms": {"leaves": ["Large, water-soaked, gray-green to dark brown lesions, often appearing on leaf edges or tips.", "Lesions expand rapidly and have an irregular, blotchy shape.", "A pale green or yellow halo may surround the necrotic lesion.", "Under humid conditions, a fuzzy, white mold is visible on the underside of the leaf, especially at the lesion margin."], "stems": ["Large, dark brown to black, greasy-appearing lesions.", "Lesions can girdle the stem, causing the plant parts above to wilt and die.", "White, fuzzy mold may also appear on stem lesions in high humidity."], "fruit": ["Large, firm, greasy-looking, dark brown to olive-colored blotches on green or ripening fruit.", "The surface of the fruit lesion is often rough or bumpy.", "The rot extends deep into the fruit flesh."], "roots": [], "whole_plant": ["Rapid wilting and collapse of the entire plant when stems are girdled.", "A characteristic musty or decaying odor may be present in severe infections."], "signs_microscopic_or_visible": ["White, downy or fuzzy growth (sporangiophores and sporangia) on the underside of leaves and on stem/fruit lesions, especially in the morning or during humid weather."]}, "lookalikes": [{"condition_name": "early blight", "condition_id": "tomato.disease_fungal.early_blight", "key_differences": ["Early blight lesions have distinct concentric rings ('target spots'), which are absent in late blight.", "Late blight lesions are larger, more water-soaked and irregular.", "Early blight typically starts on lower, older leaves, while late blight can start anywhere on the plant."]}, {"condition_name": "septoria leaf spot", "condition_id": "tomato.disease_fungal.septoria_leaf_spot", "key_differences": ["Septoria spots are much smaller (1-3 mm), circular, and have a tan or gray center with a dark border.", "Tiny black dots (pycnidia) are visible in the center of Septoria spots; these are absent in late blight.", "Late blight causes large, rapidly expanding blotches, not small, numerous spots."]}, {"condition_name": "leaf mold", "condition_id": "tomato.disease_fungal.leaf_mold", "key_differences": ["Leaf mold produces a dense, olive-green to brown velvety mold on the leaf underside, whereas late blight's mold is white and sparser.", "The upper leaf surface with leaf mold shows yellow spots, not the large, water-soaked necrotic lesions of late blight.", "Late blight lesions are dark and necrotic on both sides of the leaf."]}], "management": {"cultural": ["Use certified disease-free seeds and transplants.", "Ensure good air circulation through proper plant spacing and pruning.", "Avoid overhead irrigation; use drip irrigation to keep foliage dry.", "Remove and destroy infected plants and debris promptly.", "Rotate crops, avoiding planting tomatoes or potatoes in the same spot for 3-4 years."], "biological": ["Application of bio-fungicides containing Bacillus subtilis or copper-based compounds (e.g., copper hydroxide) can be suppressive."], "chemical": ["Preventative application of protectant fungicides like chlorothalonil or mancozeb.", "Curative application of systemic fungicides like metalaxyl, mefenoxam, or cymoxanil once disease is detected."], "notes": "Consult local extension services for recommended fungicides and spray schedules, as resistance management is critical. Predictive models based on weather data can help time applications."}, "qa_seeds": {"verification_templates": ["Is there a large, water-soaked, dark brown lesion on this leaf?", "Can you see a fuzzy white growth on the underside of the leaf lesion?", "Does the stem have a large, dark brown, greasy-looking lesion?", "Is the fruit showing a large, firm, olive-colored, bumpy patch?", "Does the lesion on the leaf have an irregular, blotchy shape without concentric rings?"], "attribute_templates": ["What color is the mold on the underside of the leaf?", "Describe the shape of the lesion on the leaf.", "What is the texture of the lesion on the fruit?", "Is the lesion surrounded by a pale green halo?", "Where on the plant are the symptoms most prominent?"], "diagnosis_templates": ["Based on the large, irregular, water-soaked lesions and white mold, what disease is this?", "What condition causes large, greasy brown lesions on tomato stems and fruit?", "Is this plant infected with late blight?"], "counterfactual_templates": ["If the lesions had distinct concentric rings, would it still be late blight?", "If the spots were very small with black dots in the center, what disease might it be instead?", "Would this be late blight if the mold on the leaf underside was olive green and velvety?"], "severity_templates": ["What percentage of the total leaf area is affected by blight?", "How would you rate the severity of this late blight infection: mild, moderate, or severe?", "Is this a mild or severe case of late blight?"], "confounders": ["early_blight", "septoria_leaf_spot", "leaf_mold"]}, "data_requirements": {"min_resolution_px": 1024, "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse lighting is preferred. Avoid harsh shadows or direct sunlight which can obscure lesion details, halos, and signs like downy mildew.", "occlusion_notes": "Minimize occlusion from other leaves or plant parts. Images should show the full lesion, including its margin and the transition to healthy tissue."}, "provenance": {"created_by": "VQA Expert Plant Pathologist", "reviewed_by": "VQA Dataset Designer", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University Extension Plant Pathology Guides", "APS Compendium of Tomato Diseases", "CABI Crop Protection Compendium"]}}
+{"schema_version": "1.0.0", "disease_id": "tomato.pest_insect.leaf_miner", "aliases": ["Serpentine leafminer", "Vegetable leafminer"], "crop": {"common_name": "tomato", "scientific_name": "Solanum lycopersicum", "family": "Solanaceae"}, "condition": {"common_name": "Leaf Miner", "scientific_name": "Liriomyza spp.", "alt_names": ["Serpentine leafminer", "Liriomyza leafminer"], "pathogen": {"type": "insect", "taxonomy": {"kingdom": "Animalia", "phylum": "Arthropoda", "class": "Insecta", "order": "Diptera", "family": "Agromyzidae", "genus": "Liriomyza", "species": ""}}}, "issue_type": "pest_insect", "transmission": {"vectors": ["Adult female flies laying eggs in leaves"], "dispersal": ["Adult flies flying between plants", "Wind dispersal of adult flies", "Movement of infested seedlings or plant material"], "overwintering": ["Pupae in soil", "Pupae in plant debris"]}, "environmental_risk": {"risk_factors": ["Warm, dry conditions", "Greenhouse environments", "Presence of alternative weed hosts (e.g., nightshades, composites)"], "temp_c_day": [24, 32], "temp_c_night": [], "relative_humidity_pct": [40, 70], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area affected with visible mines. Photosynthesis is minimally impacted.", "moderate": "11-40% of leaf area affected. Multiple mines per leaf, some coalescing. Noticeable reduction in photosynthetic area.", "severe": ">40% of leaf area affected. Extensive mining, leaves may appear whitish, become necrotic, and drop prematurely.", "notes": "Severity is assessed by estimating the percentage of the total leaf surface covered by the whitish, meandering tunnels created by the larvae. For VQA, this can be a visual estimate of the symptomatic area on the most affected leaf in the region of interest."}, "symptoms": {"leaves": ["Winding, serpentine, or blotchy white to tan trails (mines) are visible on the leaf surface.", "Mines are located between the upper and lower leaf epidermis.", "Mines widen as the larva grows, showing a progression from narrow to broad.", "Small, dark specks or a thin black line of frass (larval excrement) is visible inside the mines.", "Small, white dots (stippling) appear on the upper leaf surface from adult feeding and egg-laying punctures.", "In heavy infestations, mines may merge, causing large white or necrotic blotches.", "Severely affected leaves may turn yellow, dry out, and drop prematurely."], "stems": ["Stems are generally unaffected, though mines may occur on petioles in severe cases."], "fruit": ["Fruit is not directly damaged by mining, but sunscald can occur if defoliation is severe."], "roots": ["Not affected."], "whole_plant": ["Stunted growth and reduced yield in severe infestations due to loss of photosynthetic area."], "signs_microscopic_or_visible": ["Tiny, yellowish-white maggots (larvae) may be visible inside the mine if the leaf is held up to the light.", "Small (approx. 2mm), black and yellow adult flies may be seen on or near leaves.", "Small, oval, brownish pupae may be found on the leaf surface or in the soil below the plant."]}, "lookalikes": [{"condition_name": "Spider Mites", "condition_id": "tomato.pest_insect.spider_mites", "key_differences": ["Leaf miner damage consists of distinct, wandering tunnels inside the leaf, whereas spider mite damage is fine, uniform stippling or bronzing on the leaf surface.", "Spider mites produce fine webbing, especially on the underside of leaves, which is absent with leaf miners.", "Leaf miner larvae are inside the leaf tissue; spider mites are tiny, mobile arachnids on the leaf surface."]}, {"condition_name": "Flea Beetle Injury", "condition_id": "tomato.pest_insect.flea_beetle_injury", "key_differences": ["Flea beetles create small, round 'shot holes' that go completely through the leaf.", "Leaf miner damage is a subcutaneous tunnel (mine) that does not typically break the upper or lower leaf surface.", "Flea beetle adults are small, dark, jumping beetles, while leaf miner adults are small flies."]}, {"condition_name": "Yellowing Symptom", "condition_id": "tomato.symptom.yellowing_symptom", "key_differences": ["Leaf miner damage is characterized by specific white or tan mines that precede or accompany any yellowing.", "General yellowing from nutrient deficiency often follows a distinct pattern (e.g., interveinal, older vs. newer leaves) without the presence of tunnels.", "Dark frass trails are present within leaf miner tunnels, which are absent in other causes of yellowing."]}], "management": {"cultural": ["Remove and destroy infested leaves or entire plants early in the infestation.", "Control broadleaf weed hosts in and around the growing area.", "Use reflective mulches to deter adult flies from landing on plants.", "In greenhouses, use insect screening on vents and doors."], "biological": ["Encourage natural predators and parasitoids (e.g., parasitic wasps like Diglyphus isaea).", "Release commercially available beneficial insects in greenhouse settings.", "Avoid broad-spectrum insecticides that kill natural enemies."], "chemical": ["Apply translaminar or systemic insecticides that target larvae inside the leaf (e.g., spinosad, abamectin, cyromazine).", "Neem oil can act as a repellent and growth regulator.", "Timing of applications is critical; target early larval stages for best results."], "notes": "Monitor for adult flies using yellow sticky traps to time interventions."}, "qa_seeds": {"verification_templates": ["Does this leaf have a winding, white trail on it?", "Is there a serpentine pattern inside the leaf tissue?", "Can you see a mine between the upper and lower surfaces of the leaf?", "Are there pale, squiggly lines on the tomato leaves?", "Does this image show the characteristic tunnels of a leaf miner?"], "attribute_templates": ["What is the shape of the mine on the leaf?", "Are there dark specks of frass inside the white tunnels?", "What color are the trails on the leaf?", "Describe the pattern of damage on the leaf surface.", "Are the mines narrow at one end and wider at the other?", "Are there any small white dots on the leaf surface near the mines?"], "diagnosis_templates": ["What pest is causing the serpentine mines on this tomato leaf?", "Based on the winding tunnels, what is wrong with this plant?", "Can you identify the insect responsible for this leaf damage?"], "counterfactual_templates": ["If the damage were small, round holes all the way through the leaf, what might be the cause?", "What would the leaf look like if this were spider mite damage instead of leaf miner?", "If the leaf was just yellow with no tunnels, what could be the problem?"], "severity_templates": ["What percentage of this leaf's surface is covered by mines?", "How would you rate the severity of this leaf miner infestation: mild, moderate, or severe?", "Is the leaf miner damage on this plant light or heavy?"], "confounders": ["spider_mites", "flea_beetle_injury", "yellowing_symptom"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse lighting is best. Avoid harsh shadows or direct sunlight that can overexpose the white mines or obscure detail.", "occlusion_notes": "The affected leaf surface showing the mines should be clearly visible and not significantly obscured by other leaves, stems, or debris."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University extension guides on vegetable pests", "APS Compendium of Tomato Diseases and Pests", "General entomology and pest management textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "tomato.disease_fungal.leaf_mold", "aliases": ["Fulvia fulva", "Cladosporium fulvum"], "crop": {"common_name": "tomato", "scientific_name": "Solanum lycopersicum", "family": "Solanaceae"}, "condition": {"common_name": "leaf mold", "scientific_name": "Passalora fulva", "alt_names": ["Fulvia fulva", "Cladosporium fulvum"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Capnodiales", "family": "Mycosphaerellaceae", "genus": "Passalora", "species": "P. fulva"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["wind", "rain splash", "contaminated tools", "clothing", "infected seeds"], "overwintering": ["infected plant debris", "soil", "infected seeds", "greenhouse structures"]}, "environmental_risk": {"risk_factors": ["high relative humidity", "poor air circulation", "greenhouse or high tunnel production", "extended periods of leaf wetness", "dense plant canopy"], "temp_c_day": [22, 24], "temp_c_night": [15, 21], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 10}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of total plant foliage affected. A few pale yellow spots on upper surfaces of lower leaves, with corresponding light, sparse mold growth on the undersides.", "moderate": "11-40% of total plant foliage affected. Numerous spots, some coalescing. Obvious, dense olive-green mold on undersides. Some lower leaves are bright yellow and beginning to die back.", "severe": ">40% of total plant foliage affected. Widespread leaf yellowing, browning, and necrosis. Significant defoliation progressing up the plant. Mold growth is extensive and may be visible on stems or petioles.", "notes": "Severity is assessed on the whole plant, not a single leaf. The combination of upper-surface chlorosis and lower-surface sporulation is key. The upward progression from older to younger leaves is a typical indicator of increasing severity."}, "symptoms": {"leaves": ["Initial symptoms are pale green or yellowish spots on the upper surface of older, lower leaves.", "Spots have indefinite, diffuse borders, unlike the sharp borders of other leaf spots.", "As spots enlarge, the upper surface becomes a brighter yellow, but typically does not become necrotic (brown) until late stages.", "The lower leaf surface, directly beneath the yellow spots, develops patches of olive-green to grayish-purple, velvety mold.", "This velvety growth consists of the fungal spores (conidia) and is the most definitive diagnostic sign.", "Infected leaves eventually turn brown, shrivel, curl upwards, and drop prematurely.", "The disease progresses from the bottom of the plant upwards."], "stems": ["Stem and petiole infections are uncommon but can occur under severe disease pressure, appearing as dark, moldy patches."], "fruit": ["Blossom infections can occur, leading to a dark, leathery rot at the stem end of the fruit.", "Direct infection of mature green or ripe fruit is rare."], "roots": [], "whole_plant": ["Stunted growth and reduced yield due to loss of photosynthetic area from defoliation.", "In severe cases, significant defoliation occurs, starting from the base of the plant."], "signs_microscopic_or_visible": ["The key visible sign is the velvety, olive-green to grayish-purple mold (sporulation) on the abaxial (lower) leaf surface."]}, "lookalikes": [{"condition_name": "late blight", "condition_id": "tomato.disease_oomycete.late_blight", "key_differences": ["Leaf mold has olive-green/grayish, velvety mold on the leaf *underside*; late blight has white, fuzzy/downy mold, often at the lesion edge.", "Leaf mold lesions are pale yellow on top; late blight lesions are large, water-soaked, dark-green to black, and greasy-looking.", "Late blight aggressively attacks stems and fruit with large, dark, firm lesions; leaf mold rarely affects these parts as severely."]}, {"condition_name": "early blight", "condition_id": "tomato.disease_fungal.early_blight", "key_differences": ["Leaf mold spots are pale yellow with diffuse borders; early blight lesions are dark brown and have a characteristic 'target-like' pattern of concentric rings.", "Leaf mold has prominent, visible mold on the leaf underside; early blight lesions do not have visible mold.", "Early blight lesions are often surrounded by a distinct yellow halo, which is less defined in leaf mold."]}], "management": {"cultural": ["Plant resistant cultivars, as this is the most effective control method.", "Increase plant spacing and prune lower leaves to improve air circulation and reduce humidity within the canopy.", "Use drip irrigation instead of overhead watering to keep foliage dry.", "In greenhouses, ensure adequate ventilation to lower relative humidity, especially in the morning.", "Remove and destroy infected plant debris after harvest.", "Practice crop rotation with non-solanaceous crops."], "biological": ["Bio-fungicides containing *Bacillus subtilis* or *Trichoderma harzianum* can be used preventatively to suppress fungal growth."], "chemical": ["Apply preventative fungicides, especially when environmental conditions are favorable.", "Effective active ingredients include chlorothalonil, mancozeb, and copper-based compounds.", "For established infections, fungicides with systemic or translaminar activity may be required. Always follow label instructions and rotate fungicide classes to prevent resistance."], "notes": "Integrated management combining resistant varieties, cultural practices to reduce humidity, and timely fungicide applications is crucial for effective control, particularly in protected cultivation systems."}, "qa_seeds": {"verification_templates": ["Is there velvety, olive-green mold on the underside of the tomato leaf?", "Does the top of the leaf show pale yellow blotches with indistinct edges?", "Are the symptoms worse on the lower, older leaves?", "Can you confirm the presence of fungal growth on the abaxial (lower) leaf surface?", "Is the plant losing its lower leaves?"], "attribute_templates": ["What color is the mold on the bottom of the leaf?", "Describe the appearance of the spots on the upper leaf surface.", "Where on the plant are the symptoms most severe?", "What is the texture of the growth on the leaf underside?", "Do the yellow spots on the leaf top have sharp, defined borders or are they diffuse?"], "diagnosis_templates": ["What disease causes yellow spots on top of tomato leaves and olive-green mold underneath?", "Given the velvety mold on the leaf underside, what is wrong with this tomato plant?", "Is this tomato plant infected with leaf mold?"], "counterfactual_templates": ["If the lesions had dark, target-like rings, what disease might it be instead of leaf mold?", "If the mold on the underside was white and fuzzy instead of olive-green, what would be the likely diagnosis?"], "severity_templates": ["What percentage of the plant's total foliage shows symptoms of leaf mold?", "On a scale of mild, moderate, or severe, how would you classify this infection?", "Is the infection limited to just a few spots on the lowest leaves?"], "confounders": ["late_blight", "early_blight", "spider_mites", "yellowing_symptom"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Use even, diffuse light. Avoid hard shadows or direct sun, which can obscure the subtle yellowing on the upper surface and the true color of the mold on the underside.", "occlusion_notes": "A clear, in-focus view of both the upper (adaxial) and lower (abaxial) surfaces of a symptomatic leaf is critical. The view of the underside is essential for a definitive diagnosis."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["University Extension Plant Disease Fact Sheets", "APS Compendium of Tomato Diseases and Pests", "General Plant Pathology Textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "tomato.disease_viral.mosaic_virus", "aliases": ["Tomato Mosaic Virus", "ToMV", "Tobacco Mosaic Virus on tomato"], "crop": {"common_name": "tomato", "scientific_name": "Solanum lycopersicum", "family": "Solanaceae"}, "condition": {"common_name": "mosaic virus", "scientific_name": "Tomato mosaic virus", "alt_names": ["ToMV", "Tobacco mosaic virus (TMV)"], "pathogen": {"type": "virus", "taxonomy": {"kingdom": "Orthornavirae", "phylum": "Kitrinoviricota", "class": "Alsuviricetes", "order": "Martellivirales", "family": "Virgaviridae", "genus": "Tobamovirus", "species": "Tomato mosaic virus"}}}, "issue_type": "disease_viral", "transmission": {"vectors": [], "dispersal": ["mechanical transmission (hands, tools, clothing)", "infected seed", "infected plant debris in soil", "root-to-root contact"], "overwintering": ["infected plant debris in soil", "perennial host weeds", "infected seeds", "contaminated tools and greenhouse structures"]}, "environmental_risk": {"risk_factors": ["high plant density", "frequent plant handling and pruning", "use of non-certified seed", "presence of susceptible weed hosts (e.g., nightshade)"], "temp_c_day": [24, 28], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "Light mottling or mosaic pattern on <15% of leaf area on affected leaves. No significant stunting.", "moderate": "Distinct mosaic, yellowing, and some leaf distortion on 15-40% of leaf area. Minor plant stunting may be visible.", "severe": "Severe mosaic, leaf curling, blistering, and significant stunting of the entire plant (>40% leaf area affected). Reduced fruit set or malformed fruit.", "notes": "Severity is assessed based on the percentage of leaf surface showing mosaic, mottling, or distortion, combined with overall plant stunting. Value of 0 for leaf_wetness_hours_threshold indicates it is not a primary factor for this mechanically-transmitted virus."}, "symptoms": {"leaves": ["light and dark green mottling or mosaic pattern", "yellow mosaic or mottling", "leaf blistering, puckering, or bubbling", "fernleaf symptom (narrowed, shoestring-like leaves)", "leaf curling or malformation", "vein clearing on young leaves"], "stems": ["stunting between nodes", "necrotic streaks in severe cases"], "fruit": ["blotchy, uneven ripening with yellow or orange patches", "internal browning or necrosis ('internal blotching' or 'blotchy ripening')", "reduced fruit size and number", "occasional ring spots or bronzing"], "roots": ["stunted root system (secondary effect of poor plant growth)"], "whole_plant": ["general stunting or reduced vigor", "bushy appearance due to shortened internodes"], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "yellow leaf curl virus", "condition_id": "tomato.disease_viral.yellow_leaf_curl_virus", "key_differences": ["Yellow Leaf Curl Virus causes distinct upward curling of leaf margins, forming a cup shape; mosaic virus causes more mottling and blistering.", "TYLCV-infected leaves are often smaller, thicker, and leathery; mosaic virus leaves are more likely to show 'fernleaf' distortion.", "TYLCV infection is associated with the presence of whiteflies, its vector; mosaic virus is primarily mechanically transmitted."]}, {"condition_name": "spider mites", "condition_id": "tomato.pest_damage.spider_mites", "key_differences": ["Spider mite damage appears as fine, yellow stippling, not a large-scale mottled or mosaic pattern.", "Fine webbing is often visible on the undersides of leaves and stems with spider mites, which is absent in viral infections.", "Mites or their eggs may be visible with a hand lens on the leaf underside; viruses are microscopic.", "Spider mite damage often starts on lower leaves and moves up, while mosaic symptoms can appear on new growth."]}, {"condition_name": "fusarium wilt", "condition_id": "tomato.disease_fungal.fusarium_wilt", "key_differences": ["Fusarium wilt typically causes yellowing and wilting on only one side of the plant or a single branch initially; mosaic symptoms are more generally distributed.", "Slicing the lower stem of a Fusarium-infected plant reveals brown vascular discoloration; this is absent in mosaic virus.", "Fusarium causes pronounced wilting, especially during the heat of the day, which is less characteristic of mosaic virus until late stages."]}], "management": {"cultural": ["use certified virus-free seed and transplants", "practice strict sanitation (wash hands with soap, disinfect tools with 10% bleach solution)", "remove and destroy infected plants immediately", "control perennial weeds in and around the growing area", "avoid handling wet plants to reduce mechanical spread", "plant resistant or tolerant tomato varieties"], "biological": ["use of cross-protection with a mild strain of the virus (commercial applications)", "application of milk-based solutions to inactivate the virus on tools and hands"], "chemical": ["no chemical treatments can cure a virus-infected plant", "insecticides can be used to control potential vectors like aphids, but are ineffective against mechanical transmission"], "notes": "Prevention is the only effective management strategy. Once a plant is infected, it cannot be cured and should be removed to prevent spread."}, "qa_seeds": {"verification_templates": ["Is there a mottled pattern of light and dark green on the leaves?", "Are the leaves showing signs of blistering or puckering?", "Does this leaf exhibit a 'fernleaf' or 'shoestring' appearance?", "Is there evidence of uneven or blotchy ripening on the fruit?", "Is the overall plant stunted compared to healthy neighbors?", "Can you see any yellow mosaic patterns on the foliage?"], "attribute_templates": ["What color is the mottling on the leaf?", "Describe the texture of the distorted leaf areas.", "What part of the plant shows the most severe symptoms?", "Are the leaves curled, and if so, in which direction?", "How would you describe the pattern on the fruit's skin?", "Is the new growth or old growth more affected?"], "diagnosis_templates": ["What viral disease is causing the mosaic pattern and stunting?", "Based on the fernleaf symptom, what is the likely diagnosis?", "Is this plant infected with mosaic virus?", "Could the blotchy ripening and leaf mottling be caused by a virus?"], "counterfactual_templates": ["If the leaves had concentric rings with a yellow halo instead of mottling, what might it be?", "What would you expect to see on the underside of the leaf if this were spider mites instead of a virus?", "If this were a fungal wilt, what would a cross-section of the lower stem look like?"], "severity_templates": ["How severe is the mosaic virus infection on this plant?", "What percentage of the leaf surface is covered in mosaic patterns?", "Would you classify this infection as mild, moderate, or severe?"], "confounders": ["yellow_leaf_curl_virus", "spider_mites", "fusarium_wilt", "herbicide_damage"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse lighting is best. Avoid harsh shadows that can obscure the subtle color variations of the mosaic pattern.", "occlusion_notes": "Ensure the symptomatic leaves are not heavily occluded by other leaves or structures. A clear view of the leaf surface is critical for diagnosis."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T11:30:00Z", "updated_at": "2023-10-27T11:30:00Z", "sources": ["APS Compendium of Tomato Diseases and Pests", "University Extension Plant Pathology Guides", "CABI Invasive Species Compendium"]}}
+{"schema_version": "1.0.0", "disease_id": "tomato.disease_fungal.septoria_leaf_spot", "aliases": ["Septoria blight"], "crop": {"common_name": "tomato", "scientific_name": "Solanum lycopersicum", "family": "Solanaceae"}, "condition": {"common_name": "septoria leaf spot", "scientific_name": "Septoria lycopersici", "alt_names": [], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Capnodiales", "family": "Mycosphaerellaceae", "genus": "Septoria", "species": "lycopersici"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": ["human activity (tools, hands)", "insects (e.g., beetles)"], "dispersal": ["rain splash", "wind-driven rain", "overhead irrigation"], "overwintering": ["infected plant debris", "on solanaceous weeds (e.g., nightshade)", "on stakes and equipment"]}, "environmental_risk": {"risk_factors": ["prolonged leaf wetness", "high humidity", "dense plant canopy", "poor air circulation", "overhead irrigation"], "temp_c_day": [20, 25], "temp_c_night": [15, 20], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 48}, "severity_rubric": {"unit": "qualitative", "mild": "Few, scattered lesions (1-10 per leaf), primarily on the lowest leaves. No significant yellowing or defoliation.", "moderate": "Numerous lesions on lower and middle leaves. Affected leaves show significant chlorosis (yellowing) around spots. Minor defoliation of the lowest leaves begins.", "severe": "Lesions are widespread, coalescing on lower and middle leaves, and appearing on upper leaves. Significant defoliation is occurring from the bottom of the plant upwards. Stems may have lesions.", "notes": "Severity is assessed by the vertical progression of the disease up the plant and the degree of associated yellowing and leaf drop."}, "symptoms": {"leaves": ["Starts on lower, older leaves and progresses upwards.", "Initial symptoms are small, water-soaked spots (1-2 mm).", "Lesions develop into circular spots (3-6 mm) with dark brown or purplish-brown borders.", "Mature lesion centers are typically tan, gray, or white.", "Numerous spots may appear on a single leaf, giving it a blighted appearance.", "Heavily infected leaves turn yellow (chlorotic), wither, and drop off.", "Lesions do not typically have a 'target' or concentric ring pattern."], "stems": ["Lesions on stems are less common but can occur.", "Stem spots are similar to leaf spots: small, circular, with gray centers."], "fruit": ["Fruit infection is rare but possible.", "Spots on fruit are typically small and do not cause significant rot."], "roots": [], "whole_plant": ["Progressive defoliation from the bottom up is a key characteristic.", "Severe defoliation can expose fruit to sunscald."], "signs_microscopic_or_visible": ["Tiny, black specks (pycnidia) are visible in the center of mature lesions, often requiring a hand lens.", "Pycnidia are the fruiting bodies of the fungus."]}, "lookalikes": [{"condition_name": "early blight", "condition_id": "tomato.disease_fungal.early_blight", "key_differences": ["Lesions are larger (>6 mm) and often have a distinct 'target-like' appearance with concentric rings.", "A yellow halo is often prominent around early blight lesions.", "Early blight lesions are fewer in number per leaf compared to the numerous spots of Septoria.", "Early blight also causes distinct 'collar rot' at the soil line on seedlings."]}, {"condition_name": "bacterial spot", "condition_id": "tomato.disease_bacterial.bacterial_spot", "key_differences": ["Lesions are often angular, limited by small leaf veins, rather than circular.", "Bacterial spots may appear greasy or water-soaked, especially when young.", "Lesion centers may fall out, creating a 'shot-hole' effect.", "Bacterial spot lacks the characteristic tiny black pycnidia found in Septoria lesions."]}], "management": {"cultural": ["Use certified disease-free seed and transplants.", "Practice crop rotation, avoiding solanaceous crops for 2-3 years.", "Remove and destroy infected plant debris after harvest.", "Improve air circulation by staking, pruning, and proper plant spacing.", "Use drip irrigation or soaker hoses to avoid wetting foliage.", "Mulch around base of plants to reduce soil splash."], "biological": ["Application of biofungicides containing *Bacillus subtilis* or other beneficial microbes can suppress the disease."], "chemical": ["Apply fungicides containing chlorothalonil, mancozeb, or copper compounds preventatively.", "Begin applications when conditions are favorable for disease, before symptoms are severe.", "Rotate fungicide classes to prevent resistance."], "notes": "An integrated pest management (IPM) approach combining cultural, biological, and chemical strategies is most effective."}, "qa_seeds": {"verification_templates": ["Are there small, circular spots on the tomato leaves?", "Are the spots concentrated on the lower, older leaves?", "Do the spots have dark brown borders?", "Is the center of the spots tan or gray?", "Can you see tiny black specks in the center of the lesions?", "Are the lower leaves turning yellow and falling off?"], "attribute_templates": ["What is the shape of the spots on the leaves?", "What color is the border of the leaf spots?", "What color is the center of the leaf spots?", "Where on the plant did the spots first appear?", "How large are the spots in millimeters?", "Are there any target-like rings inside the spots?"], "diagnosis_templates": ["What disease causes numerous small, circular spots with gray centers and black dots on lower tomato leaves?", "Given the progressive defoliation from the bottom up and spots with pycnidia, what is the diagnosis?", "What is the likely fungal disease if the spots are small, round, and lack concentric rings?"], "counterfactual_templates": ["If the spots were much larger and had target-like rings, what disease would it be instead?", "If the spots were angular and looked water-soaked, what other condition could it be?", "If the symptoms were yellow mottling and distorted leaf growth without spots, what might be the cause?"], "severity_templates": ["Are the spots only on the bottom-most leaves, or have they spread to the middle of the plant?", "What percentage of the plant's leaves are showing spots?", "How much yellowing and leaf drop is visible at the base of the plant?"], "confounders": ["early_blight", "bacterial_spot", "flea_beetle_injury"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Even, diffuse lighting is preferred. Avoid harsh shadows or direct, overexposing sunlight that can wash out lesion details like center color and pycnidia.", "occlusion_notes": "Ensure the symptomatic leaf is clearly visible and not heavily occluded by other leaves or stems. A clear view of a few representative lesions is crucial."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University Extension Plant Pathology Guides", "APS Compendium of Tomato Diseases", "General Plant Pathology Textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "tomato.unknown.flea_beetle_injury", "aliases": ["flea beetle damage", "shot-hole feeding"], "crop": {"common_name": "tomato", "scientific_name": "Solanum lycopersicum", "family": "Solanaceae"}, "condition": {"common_name": "flea beetle injury", "scientific_name": "Epitrix spp.", "alt_names": ["flea beetle feeding damage"], "pathogen": {"type": "Insect", "taxonomy": {"kingdom": "Animalia", "phylum": "Arthropoda", "class": "Insecta", "order": "Coleoptera", "family": "Chrysomelidae", "genus": "Epitrix", "species": ""}}}, "issue_type": "unknown", "transmission": {"vectors": ["Adult flea beetles"], "dispersal": ["Flying", "Jumping"], "overwintering": ["In soil", "In plant debris", "In weedy areas near fields"]}, "environmental_risk": {"risk_factors": ["Presence of weedy hosts (e.g., nightshades, horsenettle)", "Warm, sunny conditions, especially after transplanting", "Fields adjacent to overwintering sites like woods or weedy borders"], "temp_c_day": [21, 29], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area on affected leaves shows small pits or holes. Damage is cosmetic.", "moderate": "11-40% of leaf area is affected. Numerous holes are present, some may coalesce, causing a tattered appearance.", "severe": ">40% of leaf area is affected. Significant defoliation or skeletonization, leading to stunted growth or death, especially in seedlings.", "notes": "Severity is most critical on young seedlings which are highly vulnerable. Established plants can tolerate substantial foliar damage. The rubric measures the percentage of affected leaf area on the most symptomatic leaves."}, "symptoms": {"leaves": ["Numerous small, round, 'shot-holes' (1-2 mm) that penetrate the leaf.", "Small pits or scraped areas on the leaf surface that do not go all the way through.", "Damage is most concentrated on cotyledons and the youngest leaves.", "Heavy feeding can cause leaves to appear tattered, lace-like, or skeletonized.", "Tissue immediately surrounding the feeding holes may turn yellow or brown.", "Small (1.5-3 mm), dark, shiny beetles may be visible on leaves and will jump when disturbed."], "stems": ["Superficial pitting or feeding marks may occur on the stems of young seedlings."], "fruit": ["Feeding damage on fruit is uncommon and typically consists of minor, superficial scarring."], "roots": [], "whole_plant": ["Stunted growth, wilting, or plant death in heavily infested seedlings.", "Mature plants generally tolerate damage well unless pest populations are extremely high."], "signs_microscopic_or_visible": ["Presence of small, dark, often metallic-sheened beetles.", "Beetles have characteristically large hind legs and jump like fleas when approached."]}, "lookalikes": [{"condition_name": "bacterial_spot", "condition_id": "tomato.bacterial.bacterial_spot", "key_differences": ["Bacterial spot lesions are initially water-soaked and often have a distinct yellow halo.", "Lesions from bacterial spot are typically angular, constrained by leaf veins, not perfectly round holes.", "Bacterial spot does not create a clean, 'punched-out' hole through the leaf."]}, {"condition_name": "septoria_leaf_spot", "condition_id": "tomato.fungal.septoria_leaf_spot", "key_differences": ["Septoria lesions are circular spots with dark brown borders and tan or gray centers.", "Tiny black specks (pycnidia, the fungal fruiting bodies) are often visible in the center of Septoria lesions.", "Septoria spots are lesions within the leaf tissue, not complete holes passing through it."]}, {"condition_name": "spider_mites", "condition_id": "tomato.pest.spider_mites", "key_differences": ["Spider mite damage appears as fine, yellowish or whitish stippling on the leaf surface, not distinct holes.", "Fine webbing is often visible on the undersides of leaves or where leaves join the stem.", "The causal agents are tiny arachnids, not jumping beetles."]}], "management": {"cultural": ["Use floating row covers to protect young transplants.", "Control nearby weedy hosts, especially those in the nightshade family.", "Delay planting until seedlings are larger and more vigorous.", "Maintain good plant health with proper watering and fertilization to help them outgrow damage."], "biological": ["Encourage natural predators like predatory nematodes, braconid wasps, and big-eyed bugs.", "Applications of entomopathogenic nematodes to the soil can target the larval stage."], "chemical": ["Apply insecticides such as spinosad, pyrethrins, or kaolin clay (as a suppressant).", "Treatment is most effective and necessary when seedlings are young and damage is first observed."], "notes": "Management is most critical during the first few weeks after transplanting. Mature, healthy plants can typically withstand significant flea beetle feeding without yield loss."}, "qa_seeds": {"verification_templates": ["Are there small, round holes scattered across the tomato leaf?", "Does the damage on the leaf look like it was hit by tiny buckshot?", "Can you see any small, dark insects that jump away when the leaf is touched?", "Are the holes completely through the leaf tissue?", "Is the damage most severe on the newest leaves of a young plant?"], "attribute_templates": ["What is the shape of the blemishes on the leaves?", "Describe the size of the holes on the leaves.", "Are the edges of the holes discolored?", "Is there any visible pest on the leaf surface?", "Which leaves on the plant show the most damage?"], "diagnosis_templates": ["What pest causes numerous small, 'shot-hole' perforations on tomato leaves?", "Based on the tattered leaves with many tiny, circular holes, what is wrong with this tomato plant?", "A small, dark beetle that jumps when disturbed is feeding on my tomato leaves. What is it?"], "counterfactual_templates": ["If the spots were angular, water-soaked, and had yellow halos, what would be the likely issue?", "What if the leaf damage was fine stippling and there was webbing on the underside of the leaves?", "If the spots had tan centers with tiny black dots inside them, what disease would you suspect?"], "severity_templates": ["What percentage of the leaf surface is affected by feeding holes?", "How would you classify the severity of the flea beetle injury: mild, moderate, or severe?", "Is the feeding damage significant enough to stunt the growth of this seedling?"], "confounders": ["bacterial_spot", "septoria_leaf_spot", "spider_mites"]}, "data_requirements": {"min_resolution_px": 480, "min_roi_fraction": 0.3, "lighting_notes": "Use bright, even lighting. Avoid harsh shadows which can obscure the small holes. Backlighting can be effective in highlighting the 'shot-hole' pattern.", "occlusion_notes": "Ensure a clear, unobstructed view of the symptomatic leaf surface. Damage can be hidden by overlapping leaves or debris. The pattern of holes is a key diagnostic feature."}, "provenance": {"created_by": "AI Plant Pathologist", "reviewed_by": "Expert Reviewer", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["University extension pest management guides", "APS Compendium of Tomato Diseases and Pests", "General entomology resources"]}}
+{"schema_version": "1.0.0", "disease_id": "tomato.pest_mite.spider_mites", "aliases": ["Two-spotted spider mite", "TSSM", "Red spider mite"], "crop": {"common_name": "tomato", "scientific_name": "Solanum lycopersicum", "family": "Solanaceae"}, "condition": {"common_name": "Spider Mites", "scientific_name": "Tetranychus urticae", "alt_names": [], "pathogen": {"type": "pest_mite", "taxonomy": {"kingdom": "Animalia", "phylum": "Arthropoda", "class": "Arachnida", "order": "Trombidiformes", "family": "Tetranychidae", "genus": "Tetranychus", "species": "urticae"}}}, "issue_type": "pest_mite", "transmission": {"vectors": ["Wind", "Humans (on clothing/tools)", "Infected transplants"], "dispersal": ["Mites walk between plants with touching foliage", "Carried on wind currents", "Mechanical transfer via equipment and workers"], "overwintering": ["Adult females overwinter in plant debris, soil, weeds, or greenhouse structures"]}, "environmental_risk": {"risk_factors": ["Hot, dry, and dusty conditions", "Low relative humidity", "Water-stressed plants", "Over-application of broad-spectrum insecticides that kill natural predators"], "temp_c_day": [27, 35], "temp_c_night": [], "relative_humidity_pct": [0, 50], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area shows stippling. Webbing is minimal or absent. Mites are difficult to see without a hand lens.", "moderate": "11-40% of leaf area shows stippling and some yellowing (chlorosis). Fine webbing is visible on leaf undersides and between petioles.", "severe": ">40% of leaf area is yellow, bronze, or necrotic. Extensive, dense webbing covers leaves, stems, and growing points. Mites are clearly visible as moving specks.", "notes": "Severity is based on the visual leaf damage (stippling, chlorosis) and the extent of webbing, which are proxies for mite population density."}, "symptoms": {"leaves": ["Fine, pale yellow or white stippling (tiny dots) on the upper leaf surface.", "Leaves may appear dusty or dirty, particularly on the underside.", "With increasing damage, stippled areas coalesce, causing leaves to turn yellow, then bronze.", "Affected leaves become dry, brittle, and may fall off prematurely.", "Fine, silk-like webbing is visible on the underside of leaves and along petioles.", "In severe cases, leaf margins may curl downwards."], "stems": ["Webbing can cover stems and growing points in heavy infestations."], "fruit": ["Direct feeding on fruit is uncommon but can cause small, whitish or yellowish surface spots (stippling).", "Fruit may be covered in webbing and dust in severe cases."], "roots": [], "whole_plant": ["Reduced plant vigor and stunted growth.", "Severe infestations can lead to significant defoliation and plant death."], "signs_microscopic_or_visible": ["Tiny, moving specks (mites) are visible on the underside of leaves, often requiring a hand lens.", "Small, spherical eggs are present on the underside of leaves, often entangled in webbing.", "Cast skins of mites may be visible within the webbing."]}, "lookalikes": [{"condition_name": "Flea Beetle Injury", "condition_id": "tomato.pest_damage.flea_beetle_injury", "key_differences": ["Flea beetle damage consists of small, round 'shot holes' that penetrate the leaf, not surface stippling.", "No webbing is ever present with flea beetle injury.", "The pest is a small, black, jumping beetle, not a tiny mite.", "Damage is often concentrated on younger leaves of new transplants."]}, {"condition_name": "Leaf Miner", "condition_id": "tomato.pest_damage.leaf_miner", "key_differences": ["Leaf miner damage appears as winding, white or pale trails (tunnels or 'mines') within the leaf tissue.", "Spider mite damage is a collection of tiny dots (stippling) on the leaf surface, not internal tunnels.", "No webbing is associated with leaf miners."]}], "management": {"cultural": ["Maintain adequate plant irrigation to avoid water stress, which makes plants more susceptible.", "Use overhead watering or misting to periodically raise humidity and wash off mites.", "Remove and destroy heavily infested plants or leaves to reduce population.", "Control host weeds (e.g., nightshades, pigweed) in and around the growing area."], "biological": ["Introduce or encourage predatory mites (e.g., Phytoseiulus persimilis, Neoseiulus californicus).", "Conserve generalist predators like minute pirate bugs, lacewings, and lady beetles by avoiding broad-spectrum insecticides."], "chemical": ["Apply horticultural oils or insecticidal soaps, ensuring thorough coverage of leaf undersides where mites reside.", "Use selective miticides (acaricides) for heavy infestations, rotating chemical classes to prevent resistance."], "notes": "Early detection is critical. Scout for stippling on lower leaves first. Chemical controls can harm natural enemies, so use them as a last resort."}, "qa_seeds": {"verification_templates": ["Is there fine, silk-like webbing on this tomato leaf?", "Can you see tiny white or yellow stippling on the upper surface of the leaves?", "Does the underside of the leaf appear dusty or have tiny moving specks?", "Is this plant showing signs of spider mite damage?", "Is the leaf damage a pattern of tiny dots rather than large spots or holes?"], "attribute_templates": ["What color is the stippling on the leaf?", "Where on the plant is the webbing most visible?", "Describe the pattern of damage on the upper leaf surface.", "Is the webbing sparse and fine, or dense and thick?", "What signs of the pest itself, not just its damage, are visible?"], "diagnosis_templates": ["Based on the stippling and webbing, what pest is affecting this tomato plant?", "What is causing the leaves to turn yellow and have a dusty underside?", "Is this damage caused by an insect, a mite, or a disease?"], "counterfactual_templates": ["If the damage were winding white trails inside the leaf, what could it be?", "What would you expect to see if this were a fungal disease like Septoria leaf spot instead of a mite infestation?"], "severity_templates": ["How severe is the spider mite infestation on this plant?", "What percentage of the leaf area is covered in stippling and yellowing?", "Based on the amount of webbing, would you classify this infestation as mild, moderate, or severe?"], "confounders": ["flea_beetle_injury", "yellowing_symptom", "leaf_miner"]}, "data_requirements": {"min_resolution_px": 1024, "min_roi_fraction": 0.3, "lighting_notes": "Diffuse, even lighting is best. Avoid harsh shadows that can obscure stippling and fine webbing. Side-lighting or back-lighting can sometimes help reveal webbing against a dark background.", "occlusion_notes": "Ensure the affected leaf surface, especially the underside, is clearly visible and not obscured by other leaves. A macro or close-up shot focusing on the stippling and any visible mites is highly valuable."}, "provenance": {"created_by": "Expert Plant Pathologist", "reviewed_by": "VQA Dataset Designer", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University Extension Pest Management Guides", "APS Compendium of Tomato Diseases and Pests", "General Acarology and Entomology Textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "tomato.disease_viral.leaf_curl_virus", "aliases": ["TLCV", "Tomato leaf curl disease"], "crop": {"common_name": "tomato", "scientific_name": "Solanum lycopersicum", "family": "Solanaceae"}, "condition": {"common_name": "Leaf Curl Virus", "scientific_name": "Tomato leaf curl virus", "alt_names": ["TLCV", "Tomato leaf curl"], "pathogen": {"type": "disease_viral", "taxonomy": {"kingdom": "Viruses", "phylum": "", "class": "", "order": "", "family": "Geminiviridae", "genus": "Begomovirus", "species": "Tomato leaf curl virus complex"}}}, "issue_type": "disease_viral", "transmission": {"vectors": ["Whiteflies (Bemisia tabaci)"], "dispersal": ["Movement of viruliferous whiteflies", "Transport of infected seedlings or plants"], "overwintering": ["In infected perennial host plants (including weeds)", "In adult whiteflies in warm climates"]}, "environmental_risk": {"risk_factors": ["High whitefly populations", "Warm, dry weather conditions that favor whitefly reproduction and migration", "Proximity to infected fields or alternative weed hosts"], "temp_c_day": [25, 35], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Slight upward curling on leaves of a few branches. Minor yellowing may be present. No significant plant stunting.", "moderate": "Most leaves on the plant show distinct upward curling and yellowing. Plant is visibly stunted compared to healthy plants of the same age.", "severe": "Entire plant is severely stunted with a bushy appearance. Leaves are small, thickened, leathery, and strongly cupped upward. Little to no fruit production.", "notes": "Severity is assessed based on the degree of plant stunting and the proportion of foliage showing characteristic curling, yellowing, and deformation. Early infection leads to more severe symptoms."}, "symptoms": {"leaves": ["Distinct upward curling or cupping of leaf margins.", "Leaves become thickened, leathery, and brittle to the touch.", "General yellowing (chlorosis) of foliage, sometimes with green veins.", "Reduction in leaf size (microphylla).", "Veins on the underside of leaves may turn purple in some varieties."], "stems": ["Shortened internodes, giving the plant a compact, bushy appearance."], "fruit": ["Significant reduction in fruit set.", "Failure to produce fruit if infected at an early stage.", "Fruits that do develop may be smaller than normal and of poor quality."], "roots": ["Root system is often underdeveloped due to overall stunting of the plant."], "whole_plant": ["Severe stunting is a primary characteristic, especially with early infection.", "Overall bushy and compact growth habit."], "signs_microscopic_or_visible": ["Presence of adult whiteflies or their nymphs, often found on the undersides of leaves."]}, "lookalikes": [{"condition_name": "Yellow Leaf Curl Virus", "condition_id": "tomato.disease_viral.yellow_leaf_curl_virus", "key_differences": ["Symptoms are nearly identical and often indistinguishable in the field; requires molecular testing for confirmation.", "TYLCV typically causes more intense, brilliant yellowing of leaf margins compared to some TLCV strains.", "TYLCV often results in more severe stunting and a more pronounced upward cupping of the leaves.", "TLCV may sometimes cause more leaf distortion and blistering than typical TYLCV."]}, {"condition_name": "Mosaic Virus", "condition_id": "tomato.disease_viral.mosaic_virus", "key_differences": ["Mosaic virus causes mottled light green/yellow and dark green patches on leaves, not the uniform yellowing and upward curl of TLCV.", "TLCV causes leaves to become thick and leathery; mosaic virus does not typically cause this change in texture.", "Mosaic virus can cause 'fernleaf' symptoms (narrowing of leaves), which is distinct from the cupping caused by TLCV.", "Severe stunting and a bushy habit are hallmarks of TLCV, while stunting in mosaic virus is often less pronounced."]}], "management": {"cultural": ["Use virus-free, certified transplants.", "Control whitefly populations by installing insect-proof nets on nurseries and greenhouses.", "Promptly remove and destroy infected plants (roguing) to reduce inoculum.", "Manage weed hosts in and around the field that can harbor the virus and vectors.", "Use reflective (e.g., silver) plastic mulches to repel whiteflies."], "biological": ["Conserve and encourage natural enemies of whiteflies, such as predatory beetles, lacewings, and parasitic wasps."], "chemical": ["Apply systemic insecticides at planting to protect young seedlings.", "Use targeted foliar insecticides to manage whitefly populations, rotating chemical classes to prevent resistance.", "Apply horticultural oils or insecticidal soaps to suppress whitefly nymphs and adults."], "notes": "Management is entirely preventive and focuses on controlling the whitefly vector. Once a plant is infected, it cannot be cured."}, "qa_seeds": {"verification_templates": ["Does this plant show evidence of leaf curl virus?", "Can you see upwardly curled, cupped leaves on this tomato plant?", "Is the plant in the image visibly stunted compared to how a healthy one should look?", "Are the leaves thickened and yellow?", "Does this tomato plant have a bushy appearance due to shortened internodes?"], "attribute_templates": ["What direction are the leaves curling?", "Describe the texture of the affected leaves.", "What is the overall growth habit of this plant?", "What color are the most affected leaves?", "Are the leaves smaller or larger than normal?", "Are there any signs of the insect vector, such as whiteflies?"], "diagnosis_templates": ["Given the severe stunting, leathery leaves, and upward curling, what viral disease is this?", "A tomato plant with yellowed, cupped leaves and a bushy habit is likely infected with what whitefly-transmitted virus?", "What is the most likely diagnosis for a field of stunted tomato plants with thickened, curled foliage?"], "counterfactual_templates": ["If the leaves showed a mottled green pattern instead of uniform curling, what disease might it be?", "What would this plant look like if the symptoms were caused by spider mites instead of a virus?", "If this plant were healthy, how would its size and leaf shape differ?"], "severity_templates": ["Based on the degree of stunting and leaf deformation, would you classify this infection as mild, moderate, or severe?", "Is the entire plant affected, or are symptoms confined to a few branches?", "How significant is the stunting on this plant?"], "confounders": ["Could these symptoms be caused by herbicide damage?", "How would you distinguish this from tomato mosaic virus?", "Is it possible this is tomato yellow leaf curl virus instead of the general leaf curl virus?"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.4, "lighting_notes": "Use even, diffuse light. Avoid harsh, direct sunlight that creates deep shadows and overexposure, which can hide subtle yellowing and leaf texture.", "occlusion_notes": "Ensure the plant's apical (top) growth and several symptomatic leaves are clearly visible. Avoid images where the plant is heavily occluded by other plants or support structures."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University extension guides on tomato diseases", "APS Compendium of Tomato Diseases and Pests", "CABI Invasive Species Compendium"]}}
+{"schema_version": "1.0.0", "disease_id": "tomato.physiological_symptom.yellowing_symptom", "aliases": ["chlorosis", "tomato chlorosis", "nutrient deficiency yellowing"], "crop": {"common_name": "tomato", "scientific_name": "Solanum lycopersicum", "family": "Solanaceae"}, "condition": {"common_name": "Yellowing Symptom", "scientific_name": "", "alt_names": ["Chlorosis", "Nutrient Deficiency"], "pathogen": {"type": "physiological_disorder", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "physiological_symptom", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Low soil nitrogen", "Low soil magnesium", "Low soil iron", "High soil pH (alkaline)", "Waterlogged soil (poor drainage)", "Drought stress", "Compacted soil"], "temp_c_day": [], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of the total leaf area on the plant is yellow.", "moderate": "11-40% of the total leaf area on the plant is yellow.", "severe": ">40% of the total leaf area on the plant is yellow, often with some browning or necrosis.", "notes": "Severity is measured as the percentage of total plant foliage showing yellowing (chlorosis). Assess the whole plant, not just a single leaf."}, "symptoms": {"leaves": ["Uniform yellowing of older, lower leaves, while new growth remains green (classic nitrogen deficiency).", "Yellowing between the veins (interveinal chlorosis) on older, lower leaves, sometimes with a 'Christmas tree' pattern (magnesium deficiency).", "Interveinal chlorosis primarily on new, upper leaves (iron deficiency).", "General, pale green to yellow discoloration across the entire plant.", "Leaf margins turn yellow and may become necrotic.", "In severe cases, yellowed leaves may wilt, dry up, and drop from the plant."], "stems": ["Stems may appear thin, spindly, or stunted."], "fruit": ["Fruit may be smaller than expected or fail to develop properly.", "Poor or uneven ripening, such as 'blotchy ripening' or 'green shoulders'."], "roots": [], "whole_plant": ["Overall stunted growth.", "Reduced plant vigor and productivity."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "Fusarium Wilt", "condition_id": "tomato.fungal_disease.fusarium_wilt", "key_differences": ["Fusarium often causes yellowing and wilting on only one side of the plant or even one side of a leaf.", "A key diagnostic is the brown vascular discoloration visible when the lower stem is cut open.", "Wilting is a primary symptom, often severe and preceding widespread yellowing."]}, {"condition_name": "Spider Mites", "condition_id": "tomato.pest_damage.spider_mites", "key_differences": ["Yellowing is composed of tiny, fine yellow or white dots (stippling) on the leaf surface.", "Fine webbing is often visible on the undersides of leaves or between stems and petioles.", "Close inspection of the leaf underside may reveal tiny, moving mites."]}, {"condition_name": "Mosaic Virus", "condition_id": "tomato.viral_disease.mosaic_virus", "key_differences": ["Yellowing appears as a mottled or mosaic pattern of light green and yellow patches, not uniform or interveinal.", "Leaves are often distorted, puckered, or have a fern-like shape.", "Overall plant growth is typically severely stunted in a way not typical for early-stage nutrient issues."]}], "management": {"cultural": ["Conduct a soil test to determine pH and nutrient levels before planting.", "Apply balanced fertilizers or specific nutrient supplements based on deficiency symptoms and soil tests.", "Improve soil drainage to prevent waterlogging and root rot.", "Ensure consistent and adequate watering to avoid drought stress.", "Incorporate compost or other organic matter to improve soil structure and nutrient availability."], "biological": [], "chemical": ["Use foliar sprays of specific nutrients (e.g., chelated iron, Epsom salts for magnesium) for a quick but temporary correction.", "Adjust soil pH using lime (to raise pH) or sulfur (to lower pH) as recommended by a soil test."], "notes": "Identifying the specific cause of yellowing is crucial for effective management. Start with a soil test and observation of the yellowing pattern (e.g., old vs. new leaves, interveinal vs. uniform)."}, "qa_seeds": {"verification_templates": ["Is the tomato plant showing signs of yellowing?", "Can you see chlorosis on the leaves?", "Are the leaves discolored yellow?", "Does this plant have yellow leaves?", "Is there evidence of a physiological symptom on this plant?"], "attribute_templates": ["Where on the plant is the yellowing located?", "What is the pattern of the yellowing on the leaves?", "Are the veins of the yellow leaves still green?", "Is the yellowing concentrated on new growth or old growth?", "Are the older, lower leaves the ones turning yellow?", "Is the yellowing uniform across the leaf or is it between the veins?"], "diagnosis_templates": ["What physiological symptom is affecting this tomato plant?", "Based on the uniform yellowing of lower leaves, what is the likely issue?", "Is this plant suffering from chlorosis?", "What condition causes interveinal yellowing on new leaves?"], "counterfactual_templates": ["If the yellowing were caused by a virus, what other symptom might be visible on the leaves?", "If this were Fusarium wilt instead of a nutrient deficiency, what would you see inside the stem?", "Would a healthy plant have this much yellow on its leaves?"], "severity_templates": ["How severe is the yellowing on this plant?", "What percentage of the plant's leaves are affected by chlorosis?", "Is the chlorosis on this plant mild, moderate, or severe?"], "confounders": ["fusarium_wilt", "spider_mites", "mosaic_virus"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Prefer diffuse, even lighting. Avoid harsh shadows or direct sunlight that can wash out colors and obscure patterns like interveinal chlorosis.", "occlusion_notes": "Ensure the affected leaves are clearly visible and not heavily obscured by other leaves or branches. Images showing both upper (new) and lower (old) leaves are highly valuable for diagnosis."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University Extension Plant Disease Guides", "American Phytopathological Society (APS) Compendia", "General Plant Physiology Textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "apple.disease_fungal.alternaria_blotch", "aliases": ["Alternaria leaf blotch", "Alternaria mali leaf spot"], "crop": {"common_name": "apple", "scientific_name": "Malus domestica", "family": "Rosaceae"}, "condition": {"common_name": "Alternaria Blotch", "scientific_name": "Alternaria mali", "alt_names": ["Alternaria leaf blotch"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Pleosporales", "family": "Pleosporaceae", "genus": "Alternaria", "species": "mali"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["wind-borne conidia", "rain splash"], "overwintering": ["infected fallen leaves", "lesions on twigs", "dormant buds"]}, "environmental_risk": {"risk_factors": ["High humidity and frequent rainfall", "Warm temperatures, typically in mid-to-late summer", "Poor air circulation within the tree canopy", "Presence of susceptible cultivars (e.g., 'Delicious', 'Indo', 'Jonathan')"], "temp_c_day": [25, 30], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 8}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area affected. A few scattered, distinct lesions on some leaves. No defoliation.", "moderate": "11-40% of leaf area affected. Lesions are numerous, may be starting to coalesce. Some minor yellowing and premature leaf drop may be visible.", "severe": ">40% of leaf area affected. Widespread, coalesced lesions forming large necrotic blotches. Significant defoliation is evident, leading to a thin canopy.", "notes": "Severity is assessed on the most affected leaves and averaged across the plant. The degree of premature defoliation is a key indicator for moderate to severe ratings."}, "symptoms": {"leaves": ["Initial symptoms are small (1-5 mm), circular, tan to light brown spots.", "Lesions develop a distinct, dark purple or brownish border as they mature.", "The center of older lesions may turn gray or brown and become necrotic.", "In some cases, the necrotic center may fall out, creating a 'shot-hole' appearance.", "Lesions can coalesce to form large, irregular blotches.", "Affected leaves often turn yellow (chlorotic) around the lesions before dropping.", "Causes premature defoliation, especially in susceptible cultivars during wet seasons."], "stems": ["Symptoms on stems are uncommon."], "fruit": ["Small, dark, slightly sunken lesions may appear on the fruit surface.", "Fruit spots are more common near the calyx (blossom end).", "Infection can lead to core rot, which may not be visible externally."], "roots": [], "whole_plant": ["In severe cases, significant defoliation can lead to a sparse canopy and reduced tree vigor."], "signs_microscopic_or_visible": ["Under a hand lens and high humidity, a sparse, velvety, olive-green to black fungal growth (conidia) may be visible in the center of lesions."]}, "lookalikes": [], "management": {"cultural": ["Prune trees to improve air circulation and promote rapid drying of leaves.", "Collect and destroy fallen leaves in the autumn to reduce the primary inoculum source.", "Maintain balanced tree nutrition to avoid excessive succulent growth.", "Choose resistant or less susceptible cultivars where possible."], "biological": ["Some bio-fungicides containing *Bacillus subtilis* may provide partial suppression when applied preventatively."], "chemical": ["Apply preventative fungicides (e.g., strobilurins, SDHIs, mancozeb, captan) during periods of high risk (warm, wet weather).", "Follow local extension service recommendations for fungicide timing and rotation to manage resistance."], "notes": "Management is most effective when integrating cultural practices to reduce inoculum with timely fungicide applications based on weather-based disease models."}, "qa_seeds": {"verification_templates": ["Does this apple leaf show signs of Alternaria blotch?", "Are there circular, tan spots with purple borders on the leaves?", "Can you confirm the presence of lesions consistent with Alternaria mali infection?", "Is the leaf yellowing and dropping prematurely due to a fungal blotch disease?", "Does the fruit in the image have small, sunken, dark spots near the blossom end?"], "attribute_templates": ["What is the shape of the lesions on this leaf?", "Describe the color of the border around the spots.", "Are the lesions coalescing into larger, irregular blotches?", "Do any of the lesions exhibit a 'shot-hole' effect?", "What percentage of the leaf surface is covered by lesions?", "Are the spots more concentrated on the older or younger leaves?"], "diagnosis_templates": ["What disease is causing these circular tan spots with dark borders on the apple leaves?", "Based on the symptoms of blotching and premature defoliation, what is the likely diagnosis?", "Identify the fungal condition affecting this apple tree."], "counterfactual_templates": ["If the lesions were olive-green and velvety, would this still be Alternaria blotch?", "If the spots on the leaf had distinct concentric rings like a target, what disease might it be instead?", "Would you diagnose this as Alternaria blotch if the main symptom was a white, powdery growth covering the leaf surface?"], "severity_templates": ["How would you rate the severity of this Alternaria blotch infection: mild, moderate, or severe?", "What is the approximate percentage of leaf area affected by the blotches?", "Based on the visible defoliation, how severe is this disease outbreak?"], "confounders": ["scab", "black_rot"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Use even, diffuse lighting. Avoid direct, harsh sunlight which can create deep shadows and wash out the subtle colors of the lesion borders.", "occlusion_notes": "The symptomatic leaf or fruit should be the main subject, with minimal occlusion from other plant parts or background objects. If multiple leaves are shown, the focus should be clear on the ones showing symptoms."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2024-05-23T10:00:00Z", "updated_at": "2024-05-23T10:00:00Z", "sources": ["General university extension guides for apple diseases", "APS Compendium of Apple and Pear Diseases", "Peer-reviewed plant pathology literature"]}}
+{"schema_version": "1.0.0", "disease_id": "apple.disease_fungal.scab", "aliases": ["apple scab", "black spot"], "crop": {"common_name": "apple", "scientific_name": "Malus domestica", "family": "Rosaceae"}, "condition": {"common_name": "scab", "scientific_name": "Venturia inaequalis", "alt_names": ["black spot"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Venturiales", "family": "Venturiaceae", "genus": "Venturia", "species": "inaequalis"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["wind-driven rain", "splashing water", "airborne ascospores"], "overwintering": ["infected fallen leaves on the orchard floor (as pseudothecia)", "lesions on twigs and bud scales"]}, "environmental_risk": {"risk_factors": ["prolonged leaf wetness periods", "cool, wet spring weather", "high relative humidity", "poor air circulation within the tree canopy"], "temp_c_day": [16, 24], "temp_c_night": [], "relative_humidity_pct": [95, 100], "leaf_wetness_hours_threshold": 9}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-5% of leaf or fruit surface affected; a few isolated lesions.", "moderate": "6-25% of leaf or fruit surface affected; multiple lesions, some may be coalescing.", "severe": ">25% of leaf or fruit surface affected; extensive lesions, significant leaf yellowing/defoliation, or fruit distortion/cracking.", "notes": "Severity is assessed on individual leaves/fruit or as an average across the canopy. For fruit, severity can also be rated by the degree of cracking and deformation."}, "symptoms": {"leaves": ["Initially, pale yellow or olive-green spots on the upper leaf surface.", "Lesions darken to a velvety, olive-brown, then black, often with a feathery, indistinct margin.", "Spots become more defined and circular with age.", "Infected leaves may become distorted, curled, or dwarfed.", "Severe infections cause premature leaf yellowing (chlorosis) and defoliation, typically starting from lower branches."], "stems": ["Small, blister-like lesions can form on young twigs, becoming rough and corky over time (less common)."], "fruit": ["Small, circular, velvety olive-green spots appear on young fruit.", "Lesions on maturing fruit become dark brown to black, corky, and raised, creating a 'scabby' texture.", "The skin beneath the scab may stop growing, causing the fruit to become misshapen or cracked.", "Cracks in fruit can provide an entry point for secondary rot organisms."], "roots": [], "whole_plant": ["Reduced tree vigor and significant yield loss in severe, untreated cases."], "signs_microscopic_or_visible": ["A velvety, olive-green to brown layer of sporulation (conidia) is visible on the surface of active lesions."]}, "lookalikes": [{"condition_name": "black_rot", "condition_id": "apple.disease_fungal.black_rot", "key_differences": ["Black rot lesions ('frogeye leaf spot') have distinct concentric rings, which scab lesions lack.", "Black rot spots are typically tan to brown in the center with a purple border, unlike the uniform olive-green/black of scab.", "Black rot lesions may contain tiny black dots (pycnidia) in the center; scab lesions are velvety."]}, {"condition_name": "cedar_apple_rust", "condition_id": "apple.disease_fungal.cedar_apple_rust", "key_differences": ["Rust spots are bright orange-yellow, often with a reddish border, not olive-green or black.", "Rust may produce tiny cup-like structures (aecia) on the underside of the leaf, which are absent in scab.", "Scab causes velvety or corky lesions, while rust spots are smooth initially and may cause a thickened gall on the leaf or fruit."]}, {"condition_name": "alternaria_blotch", "condition_id": "apple.disease_fungal.alternaria_blotch", "key_differences": ["Alternaria blotch lesions are often irregular, brownish, and can have a necrotic, papery texture, sometimes with a purplish halo.", "Scab lesions are more distinctly circular or oval and have a velvety texture in early stages.", "Alternaria blotch is often associated with mite injury and is more common on specific cultivars like Delicious."]}], "management": {"cultural": ["Plant resistant cultivars.", "Prune trees to improve air circulation and sunlight penetration, which speeds drying.", "Rake and destroy or compost fallen leaves in autumn to reduce the primary source of inoculum.", "Maintain proper tree nutrition and irrigation to improve overall plant health."], "biological": ["Application of microbial-based products (e.g., specific strains of *Bacillus subtilis*) can suppress pathogen growth on leaf surfaces."], "chemical": ["Apply preventative and curative fungicides based on disease prediction models (e.g., using temperature and leaf wetness duration).", "Proper timing of sprays is critical, beginning at the green tip stage and continuing through early summer.", "Rotate fungicide classes (FRAC groups) to manage and prevent the development of fungicide resistance."], "notes": "An Integrated Pest Management (IPM) strategy that combines cultural practices with predictive modeling and targeted fungicide applications is the most effective and sustainable approach."}, "qa_seeds": {"verification_templates": ["Is the leaf in the image showing signs of scab?", "Can you confirm the presence of olive-green, velvety spots on this apple?", "Does this fruit exhibit corky, black lesions characteristic of apple scab?", "Are there any feathery, dark spots on the leaves?", "Verify if the symptoms on this leaf are consistent with a Venturia inaequalis infection."], "attribute_templates": ["What color are the lesions on the leaves?", "Describe the texture of the spots on the fruit.", "Are the margins of the leaf spots well-defined or feathery?", "Is there evidence of leaf curling or distortion associated with the spots?", "Are the spots on the fruit raised or sunken?", "Besides the spots, is there any premature yellowing of the leaves?"], "diagnosis_templates": ["What fungal disease is causing these velvety, olive-green spots on the apple leaves?", "Based on the cracked, scabby lesions on the fruit, what is the likely diagnosis?", "Identify the disease causing premature defoliation and dark, feathery-margined spots on the leaves."], "counterfactual_templates": ["If the spots were bright orange instead of olive-green, what disease might it be?", "What would you expect to see if this were frogeye leaf spot (black rot) instead of scab?", "If the spots had a white, powdery texture, what would the diagnosis be?"], "severity_templates": ["How severe is the scab infection on this leaf, as a percentage of area affected?", "Would you classify the fruit damage as mild, moderate, or severe?", "Based on the number and size of lesions, what is the severity level of this scab infection?"], "confounders": ["black_rot", "cedar_apple_rust", "alternaria_blotch"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Avoid harsh shadows or overexposure that can obscure lesion color and texture. Diffuse, even lighting is ideal.", "occlusion_notes": "The primary symptomatic area (lesions) should not be significantly occluded by other leaves, branches, or foreign objects."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "N/A", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["APS Compendium of Apple and Pear Diseases", "University Extension Plant Pathology Guides", "CABI Invasive Species Compendium"]}}
+{"schema_version": "1.0.0", "disease_id": "apple.disease_fungal.powdery_mildew", "aliases": ["Apple mildew", "PM"], "crop": {"common_name": "apple", "scientific_name": "Malus domestica", "family": "Rosaceae"}, "condition": {"common_name": "powdery mildew", "scientific_name": "Podosphaera leucotricha", "alt_names": [], "pathogen": {"type": "fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Leotiomycetes", "order": "Erysiphales", "family": "Erysiphaceae", "genus": "Podosphaera", "species": "leucotricha"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["wind-borne conidia", "rain splash"], "overwintering": ["as mycelium in dormant vegetative or fruit buds", "as chasmothecia (fruiting bodies) on bark"]}, "environmental_risk": {"risk_factors": ["high relative humidity (not free water)", "moderate temperatures", "dense canopy with poor air circulation", "susceptible cultivars (e.g., Jonathan, Rome, Gala)", "abundant succulent new growth"], "temp_c_day": [18, 25], "temp_c_night": [], "relative_humidity_pct": [70, 90], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "< 5% of leaf surface covered with white mycelium; no leaf distortion.", "moderate": "5-25% of leaf surface covered; some leaf curling or crinkling is visible.", "severe": "> 25% of leaf surface covered; significant leaf distortion, stunting of shoots, and/or premature defoliation.", "notes": "Severity is assessed on actively growing shoots and young leaves, which are most susceptible. For fruit, severity can be assessed by the percentage of surface with russeting. Powdery mildew does not require leaf wetness for infection, hence the threshold is 0."}, "symptoms": {"leaves": ["White to light gray, felt-like patches of mycelium, often appearing first on the underside.", "Infected leaves may curl, crinkle, or fold upwards along the midrib.", "Young infected leaves are often narrow, stiff, and brittle.", "Patches can coalesce to cover the entire leaf surface.", "In late summer, tiny black specks (chasmothecia) may be visible within the white mycelial mats."], "stems": ["White, powdery growth covers new, succulent shoots (terminals).", "Infected shoots are stunted with shortened internodes.", "Infected shoot tips may die back, appearing brown or black."], "fruit": ["Causes a web-like or net-like russeting on the fruit skin.", "Infected fruit may be dwarfed, misshapen, or cracked.", "White mycelial growth is less common but can occur, especially around the calyx."], "roots": [], "whole_plant": ["Reduced tree vigor and stunted overall growth, particularly in young trees or highly susceptible cultivars."], "signs_microscopic_or_visible": ["Visible white, powdery mycelium and conidia on plant surfaces.", "Small, black, spherical fruiting bodies (chasmothecia) visible with a hand lens in late season."]}, "lookalikes": [{"condition_name": "scab", "condition_id": "apple.disease_fungal.scab", "key_differences": ["Scab lesions are distinct, olive-green to brown/black spots, not a white, powdery coating.", "Powdery mildew can be rubbed off easily in early stages; scab lesions cannot.", "Scab causes leaf blistering and puckering, while mildew causes upward curling and folding.", "Scab fruit spots are dark and scabby, unlike the net-like russeting from mildew."]}, {"condition_name": "cedar apple rust", "condition_id": "apple.disease_fungal.cedar_apple_rust", "key_differences": ["Rust spots are bright orange-yellow, often with a red border, not white and powdery.", "Rust produces small, cup-like structures (aecia) on the leaf underside, not a mycelial mat.", "Powdery mildew commonly infects and stunts entire shoot tips, which is not a primary symptom of rust."]}, {"condition_name": "healthy", "condition_id": "apple.healthy", "key_differences": ["Natural leaf hairs (pubescence) on young leaves can be mistaken for mildew, but pubescence is uniform, silvery, and cannot be rubbed off like a powder.", "Spray residue can leave a white film, but it is often more uniform, less 'fuzzy' or 'felt-like', and may have droplet patterns.", "Healthy leaves are uniformly green without distortion, curling, or powdery patches."]}], "management": {"cultural": ["Prune and destroy infected shoots and terminals during winter dormancy.", "Plant resistant or tolerant cultivars.", "Ensure good air circulation via proper pruning and tree spacing to reduce humidity.", "Avoid excessive nitrogen fertilization that encourages susceptible new growth."], "biological": ["Application of bio-fungicides containing *Bacillus subtilis* or potassium bicarbonate.", "Neem oil or horticultural oils can be effective but must be applied carefully to avoid phytotoxicity."], "chemical": ["Preventative application of fungicides (e.g., sulfur, sterol inhibitors (DMIs), strobilurins (QoIs)) starting at tight cluster or pink stage.", "Rotate fungicide classes (FRAC groups) to manage and prevent resistance."], "notes": "Management is most critical from pre-bloom through early summer when new tissues are most susceptible to infection."}, "qa_seeds": {"verification_templates": ["Is there a white, powdery substance on the leaf?", "Does this apple shoot show signs of powdery mildew?", "Can you see any white, felt-like patches on the surface?", "Is the new growth stunted and covered in a white coating?", "Is the leaf curled upwards along its length?"], "attribute_templates": ["What color is the growth on the leaf?", "Describe the texture of the substance on the shoot tip.", "Where on the leaf are the white patches located?", "What kind of pattern is on the surface of the apple fruit?", "How are the infected leaves misshapen?", "Are there tiny black dots visible within the white patches?"], "diagnosis_templates": ["What disease causes a white, powdery coating on apple leaves and shoots?", "Based on the net-like russeting on the fruit and curled leaves, what is the diagnosis?", "A young apple shoot is stunted, white, and brittle. What is the likely problem?"], "counterfactual_templates": ["If the spots were olive-green and distinct instead of white and powdery, what disease would it be?", "What would this leaf look like if it had cedar apple rust instead of powdery mildew?"], "severity_templates": ["What percentage of this leaf's surface is covered by powdery mildew?", "How severe is the powdery mildew infection on this shoot?", "Would you classify this infection as mild, moderate, or severe?"], "confounders": ["Is this powdery mildew or apple scab?", "Could the white film on this leaf be pesticide residue rather than a disease?", "Is this early powdery mildew or the natural pubescence of a young leaf?"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.2, "lighting_notes": "Diffuse, even lighting is optimal. Avoid hard shadows or direct sun that can overexpose the white mycelium, making it hard to distinguish from reflections.", "occlusion_notes": "The primary symptomatic area (e.g., curled leaf, infected shoot tip) should be in focus and not significantly obscured by other plant parts."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["APS Compendium of Apple and Pear Diseases and Pests", "University Extension Plant Pathology Guides", "CABI Crop Protection Compendium"]}}
+{"schema_version": "1.0.0", "disease_id": "arabian.disease_fungal.jasmine_anthracnose", "aliases": ["Jasmine dieback", "Jasmine twig blight", "Colletotrichum leaf spot of jasmine"], "crop": {"common_name": "Arabian Jasmine", "scientific_name": "Jasminum sambac", "family": "Oleaceae"}, "condition": {"common_name": "Jasmine Anthracnose", "scientific_name": "Colletotrichum gloeosporioides", "alt_names": ["Dieback", "Twig blight"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Sordariomycetes", "order": "Glomerellales", "family": "Glomerellaceae", "genus": "Colletotrichum", "species": "gloeosporioides"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": ["Insects (as mechanical carriers)", "Humans (via contaminated pruning tools)"], "dispersal": ["Rain splash", "Wind-driven rain", "Overhead irrigation"], "overwintering": ["Infected plant debris on the ground", "As dormant mycelium in stem cankers", "On infected, persistent leaves"]}, "environmental_risk": {"risk_factors": ["High humidity", "Prolonged leaf wetness (>12 hours)", "Warm temperatures", "Dense plant canopy with poor air circulation", "Recent plant injury or pruning wounds"], "temp_c_day": [24, 32], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 12}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of total foliage affected. A few scattered leaf spots, minimal to no twig dieback observed.", "moderate": "11-40% of total foliage affected. Multiple lesions per leaf, some coalescing. Noticeable dieback on several young shoots.", "severe": ">40% of total foliage affected. Widespread leaf blighting and defoliation. Significant dieback of branches, plant appears sickly.", "notes": "Assessment combines the percentage of leaf surface covered by lesions with the extent of stem/twig dieback. The overall impact on the plant's canopy is considered."}, "symptoms": {"leaves": ["Small, circular to irregular, water-soaked spots, especially on young leaves.", "Lesions enlarge and turn tan to dark brown, often with a distinct, dark brown or purplish border.", "Spots may coalesce to form large, irregular necrotic patches or blight.", "A 'shot-hole' appearance can occur as the necrotic center of spots dries and falls out.", "Infected leaves may become twisted or distorted before dropping prematurely."], "stems": ["Symptoms often begin at the tips of young, tender shoots, causing them to wilt and die back.", "Elongated, sunken, dark brown to black lesions (cankers) form on stems and twigs.", "Cankers can girdle the stem, causing all parts above the lesion to wilt and die."], "fruit": ["Flower buds may develop brown spots, rot, and fail to open.", "Opened flowers can show brown necrotic flecks on petals."], "roots": [], "whole_plant": ["Progressive dieback of branches from the tip inward.", "Stunted growth and reduced plant vigor.", "Significant defoliation in severe cases."], "signs_microscopic_or_visible": ["Under humid conditions, gelatinous, pink to salmon-colored spore masses (acervuli) erupt through the surface of lesions.", "Using a hand lens, tiny black, bristle-like structures (setae) may be visible in the center of older lesions."]}, "lookalikes": [{"condition_name": "Jasmine Leaf Blight", "condition_id": "arabian.disease_fungal.jasmine_leaf_blight", "key_differences": ["Leaf blight lesions are often larger and more rapidly expanding, engulfing entire leaves without the initial discrete, bordered spot stage of anthracnose.", "Anthracnose is strongly characterized by sunken stem cankers and tip dieback, which are less prominent or absent in many leaf blight diseases.", "Leaf blight (e.g., Alternaria) may produce dark, sooty mold growth, whereas anthracnose produces pink/orange spore masses in wet conditions.", "Anthracnose spots can have a 'shot-hole' appearance, which is less common for leaf blights."]}, {"condition_name": "Jasmine Leaf Spot", "condition_id": "arabian.disease_fungal.jasmine_leaf_spot", "key_differences": ["Cercospora leaf spots are typically more circular, smaller, and remain discrete, with a characteristic tan or grey center and a very distinct dark purple or reddish-brown border.", "Anthracnose lesions are more variable in shape and tend to coalesce into larger blighted areas more readily.", "Leaf spot diseases are primarily foliar, while anthracnose also causes significant cankers and dieback on stems and twigs."]}], "management": {"cultural": ["Prune and destroy infected twigs and branches during dry weather to reduce inoculum.", "Rake up and dispose of fallen leaves and plant debris.", "Improve air circulation through selective pruning and proper plant spacing.", "Avoid overhead irrigation to minimize leaf wetness; use drip irrigation or water the soil directly.", "Maintain plant vigor with appropriate fertilization and watering, but avoid excessive nitrogen."], "biological": ["Application of biofungicides containing strains of *Bacillus subtilis* or *Trichoderma* spp. may help suppress the pathogen."], "chemical": ["Apply preventative fungicides during warm, wet periods conducive to disease development.", "Effective active ingredients include mancozeb, chlorothalonil, and copper-based compounds.", "For severe infections, systemic fungicides like those containing azoxystrobin or propiconazole may be necessary."], "notes": "Rotate fungicide chemical groups to prevent resistance. Always read and follow the product label for application rates and timing."}, "qa_seeds": {"verification_templates": ["Are there dark, sunken lesions present on the stems?", "Do the leaves show tan or brown spots with darker borders?", "Is there evidence of branches dying back from the tips?", "Can you see any small, pinkish, gelatinous masses in the center of the spots?", "Are multiple small spots merging into larger, dead patches on the leaves?"], "attribute_templates": ["Describe the color and shape of the spots on the leaves.", "What part of the plant shows the most severe symptoms?", "Are the lesions on the stems raised, flat, or sunken?", "Do the leaf spots have a 'shot-hole' appearance?", "What color is the border of the leaf lesions?", "Are the symptoms worse on new growth or older leaves?"], "diagnosis_templates": ["What disease is indicated by the combination of leaf spots, stem cankers, and twig dieback on jasmine?", "Given the sunken stem lesions and bordered leaf spots with pink spore masses, what is the diagnosis?", "What is the most likely cause of progressive dieback starting from the tips of jasmine branches coupled with foliar spotting?"], "counterfactual_templates": ["If the symptoms were only uniform yellowing on the oldest leaves, what would be the cause instead of anthracnose?", "What would you expect to see if this was damage from a chewing insect instead of a fungal disease?", "If the spots were very small with grey centers and distinct purple halos, and there was no stem dieback, what other disease would be more likely?"], "severity_templates": ["What percentage of the plant's leaves are affected by spots or blight?", "On a scale of mild to severe, how would you describe the extent of the twig dieback?", "Are the symptoms localized to one branch, or are they widespread throughout the plant?"], "confounders": ["jasmine_leaf_blight", "jasmine_leaf_spot", "jasmine_senescence_or_dry"]}, "data_requirements": {"min_resolution_px": 800, "min_roi_fraction": 0.4, "lighting_notes": "Use diffuse, even lighting. Avoid hard shadows and direct sun, which can wash out lesion colors and details like borders or spore masses.", "occlusion_notes": "Ensure a clear view of both affected leaves and stems. If necessary, move aside healthy leaves to photograph stem cankers clearly."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2024-05-21T11:00:00Z", "updated_at": "2024-05-21T11:00:00Z", "sources": ["University extension publications on ornamental plant diseases", "APS Compendium of Ornamental Foliage Plant Diseases", "General plant pathology diagnostic guides"]}}
+{"schema_version": "1.0.0", "disease_id": "arabian.nutrient_deficiency.jasmine_chlorosis", "aliases": ["Iron chlorosis", "Nutrient deficiency yellowing", "Jasmine yellowing"], "crop": {"common_name": "Arabian Jasmine", "scientific_name": "Jasminum sambac", "family": "Oleaceae"}, "condition": {"common_name": "Jasmine Chlorosis", "scientific_name": null, "alt_names": ["Iron deficiency", "Manganese deficiency", "Interveinal chlorosis"], "pathogen": {"type": "Abiotic", "taxonomy": null}}, "issue_type": "nutrient_deficiency", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["High soil pH (alkaline soil > 7.0)", "Poorly drained or waterlogged soil", "Over-fertilization with phosphorus, which can inhibit iron uptake", "Low soil organic matter", "Compacted soil"], "temp_c_day": [], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area on younger leaves shows yellowing, while veins remain distinctly green.", "moderate": "11-40% of leaf area is affected; yellowing is pronounced and may spread to older leaves. Some leaf margins may begin to turn brown.", "severe": ">40% of leaf area is affected; leaves are almost entirely yellow or white, with significant browning, stunting, and potential leaf drop.", "notes": "Severity is assessed on the most affected leaves, focusing on the characteristic interveinal chlorosis pattern. The overall percentage of affected leaves on the plant can also be considered."}, "symptoms": {"leaves": ["Youngest, newest leaves show yellowing between the veins.", "Leaf veins remain distinctly green, creating a netted or web-like pattern.", "In severe cases, the entire leaf turns pale yellow or almost white.", "Leaf margins may become necrotic (brown and dry) in advanced stages.", "Affected leaves may be smaller than normal.", "Older, lower leaves typically remain green, especially in early stages."], "stems": ["Internodes may be shortened, leading to a stunted or bunched appearance."], "fruit": [], "roots": [], "whole_plant": ["Overall plant growth is stunted or vigor is reduced.", "Flowering may be significantly reduced or absent."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "Jasmine Leaf Spot", "condition_id": "arabian.fungal.jasmine_leaf_spot", "key_differences": ["Leaf spot presents as discrete, circular or irregular necrotic spots, not a widespread yellowing between veins.", "Spots may have a darker border or a lighter tan center, a feature absent in chlorosis.", "Chlorosis affects the entire lamina between veins, while spots are localized lesions that can appear anywhere on the leaf."]}, {"condition_name": "Jasmine Pest Damage", "condition_id": "arabian.pest.jasmine_pest_damage", "key_differences": ["Pests like spider mites cause fine stippling (tiny yellow dots), not broad interveinal yellowing.", "Pest damage may be accompanied by visible signs like webbing, insects, sooty mold, or honeydew.", "Yellowing from pests is often patchy and irregular, not following the distinct vascular pattern of chlorosis."]}], "management": {"cultural": ["Test soil pH and amend to be slightly acidic (6.0-6.5) using elemental sulfur or acidifying fertilizers.", "Improve soil drainage and avoid over-watering.", "Incorporate well-composted organic matter to improve soil structure and nutrient availability.", "Mulch with acidic materials like pine bark or needles."], "biological": [], "chemical": ["Apply chelated iron (Fe-EDDHA is most effective in high pH soils) as a soil drench.", "Use a balanced fertilizer containing essential micronutrients like iron, manganese, and zinc.", "For a quick but temporary fix, apply a foliar spray of chelated iron or iron sulfate."], "notes": "Foliar sprays offer a rapid green-up but do not solve the underlying soil problem. Addressing soil pH is the most effective long-term solution."}, "qa_seeds": {"verification_templates": ["Is there yellowing on the leaves of this jasmine plant?", "Are the veins of the yellow leaves still green?", "Does this image show a jasmine leaf with a web-like pattern of green veins on a yellow background?", "Is the yellowing primarily affecting the newer, upper leaves?", "Can you confirm the presence of interveinal chlorosis?"], "attribute_templates": ["What color are the veins on the affected leaves?", "What color is the tissue between the veins?", "Which leaves are most affected: the new upper leaves or the old lower leaves?", "Describe the pattern of yellowing on the leaf.", "Are there any discrete spots or lesions on the leaves?", "Are the leaves uniformly yellow or is there a distinct pattern?"], "diagnosis_templates": ["What nutrient deficiency is causing the leaves to turn yellow while the veins stay green?", "Based on the interveinal chlorosis on the new growth, what is the likely issue with this plant?", "Is this plant suffering from jasmine chlorosis?"], "counterfactual_templates": ["If the yellowing were uniform and only on the oldest leaves, what would the condition be?", "If there were distinct brown spots with dark borders, what disease might it be instead?"], "severity_templates": ["What percentage of the leaf area is affected by chlorosis?", "How severe is the chlorosis on this jasmine leaf: mild, moderate, or severe?", "Are the leaves mostly yellow with some green veins, or almost completely white?"], "confounders": ["jasmine_senescence_or_dry", "jasmine_pest_damage", "jasmine_leaf_spot"]}, "data_requirements": {"min_resolution_px": 480, "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse lighting is preferred. Avoid harsh shadows or direct sunlight that can wash out the color contrast between veins and lamina.", "occlusion_notes": "The affected leaf, particularly the pattern of veins, should be clearly visible and not significantly obscured by other leaves or objects."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University extension guides on ornamental plant nutrition", "APS Compendium of Ornamental Foliage Plant Diseases", "Horticultural best practice manuals"]}}
+{"schema_version": "1.0.0", "disease_id": "arabian.unknown.jasmine_arabian_jasmine_healthy", "aliases": ["Normal Arabian Jasmine", "Asymptomatic Jasminum sambac"], "crop": {"common_name": "Arabian Jasmine", "scientific_name": "Jasminum sambac", "family": "Oleaceae"}, "condition": {"common_name": "Healthy", "scientific_name": null, "alt_names": ["Normal", "Asymptomatic", "Unaffected"], "pathogen": {"type": "non_pathogenic", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "unknown", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Optimal sunlight exposure (6-8 hours/day)", "Consistent and appropriate watering", "Well-drained, slightly acidic soil", "Good air circulation around the foliage"], "temp_c_day": [21, 29], "temp_c_night": [18, 21], "relative_humidity_pct": [60, 80], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Not applicable.", "moderate": "Not applicable.", "severe": "Not applicable.", "notes": "This card represents a healthy, asymptomatic plant. Severity assessment is not applicable as there are no signs or symptoms of disease or stress."}, "symptoms": {"leaves": ["Uniformly deep green in color with no yellowing or discoloration.", "Leaves are turgid, firm, and not wilted or drooping.", "Leaf surfaces are glossy or waxy and free of spots, lesions, or blemishes.", "Veins are a similar or slightly lighter green than the leaf blade.", "Leaf shape and size are consistent with the species and age of the foliage."], "stems": ["Stems are firm, strong, and appropriately upright or vining.", "Stem color is green on new growth, becoming light brown on older wood.", "No cankers, galls, black streaks, or lesions are visible on stems."], "fruit": [], "roots": [], "whole_plant": ["Exhibits vigorous growth with new leaves and shoots.", "Foliage is dense and full.", "Overall appearance is robust and vibrant."], "signs_microscopic_or_visible": []}, "lookalikes": [], "management": {"cultural": ["Provide 6-8 hours of direct or bright, indirect sunlight daily.", "Use a well-draining potting mix or soil.", "Water when the top 1-2 inches of soil feel dry to the touch.", "Ensure good air circulation to reduce humidity on leaf surfaces.", "Fertilize during the growing season according to product recommendations."], "biological": [], "chemical": ["Not applicable for maintaining health. Chemical treatments are reactive, not preventative, in home settings."], "notes": "Maintaining optimal cultural conditions is the best way to keep an Arabian Jasmine plant healthy and resilient to potential issues."}, "qa_seeds": {"verification_templates": [{"q": "Is this plant healthy?", "a": "Yes, the plant appears healthy, with uniformly green, turgid leaves and no visible signs of disease or stress."}, {"q": "Are there any spots or blemishes on the leaves?", "a": "No, the leaves are unblemished and have a consistent color and glossy texture."}, {"q": "Does this plant show any signs of yellowing?", "a": "No, the foliage is a vibrant, deep green with no yellowing or chlorosis."}, {"q": "Is the plant wilting?", "a": "No, the leaves and stems are firm and turgid, showing no signs of wilting."}], "attribute_templates": [{"q": "What color are the leaves?", "a": "The leaves are a uniform, deep green."}, {"q": "Describe the overall appearance of the plant.", "a": "The plant appears vigorous and robust, with dense, full foliage and signs of new growth."}, {"q": "What is the condition of the stems?", "a": "The stems are firm and appear healthy, with appropriate color for their age."}, {"q": "Describe the leaf surface.", "a": "The leaf surface is smooth and appears glossy or waxy."}], "diagnosis_templates": [{"q": "What condition, if any, is affecting this plant?", "a": "The plant is not affected by any visible condition; it is healthy."}, {"q": "Based on the lack of symptoms, what is your diagnosis?", "a": "The diagnosis is a healthy plant."}, {"q": "Is this plant suffering from a disease?", "a": "No, there are no visible signs of disease. The plant is healthy."}], "counterfactual_templates": [{"q": "If the leaves were yellow with green veins, what would be the issue?", "a": "Yellow leaves with green veins would indicate chlorosis, likely caused by a nutrient deficiency such as iron or magnesium."}, {"q": "What would it mean if there were circular brown spots on the leaves?", "a": "Circular brown spots would be a primary symptom of a fungal or bacterial leaf spot disease."}, {"q": "If the lower leaves were turning yellow and falling off, what might be happening?", "a": "If only the oldest, lowest leaves were yellowing, it could be natural senescence, but it could also be a sign of overwatering or a nitrogen deficiency."}], "severity_templates": [{"q": "How severe is the condition?", "a": "Severity is not applicable as the plant is healthy."}, {"q": "What percentage of the foliage is affected?", "a": "Zero percent of the foliage is affected; the plant is asymptomatic."}], "confounders": [{"q": "Could this be a very early stage of a disease before symptoms appear?", "a": "While a plant can be in a latent period of infection, for visual diagnosis, this plant is classified as healthy due to the complete absence of any symptoms."}, {"q": "Is this chlorosis?", "a": "No. Chlorosis is characterized by yellowing leaves. These leaves are a healthy, uniform green."}]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.4, "lighting_notes": "Use even, diffuse light. Avoid harsh shadows or direct flash, which can cause glare on the glossy leaves and misrepresent the plant's true color.", "occlusion_notes": "The majority of the plant's foliage should be visible and in focus. Avoid significant occlusion from other objects or plants."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T11:30:00Z", "updated_at": "2023-10-27T11:30:00Z", "sources": ["University extension guides on jasmine cultivation", "General plant pathology compendia", "Horticultural best practices for Oleaceae family"]}}
+{"schema_version": "1.0.0", "disease_id": "arabian.disease_fungal.jasmine_leaf_blight", "aliases": ["Alternaria leaf blight of jasmine", "Jasmine target spot"], "crop": {"common_name": "Arabian Jasmine", "scientific_name": "Jasminum sambac", "family": "Oleaceae"}, "condition": {"common_name": "Jasmine Leaf Blight", "scientific_name": "Alternaria jasmini", "alt_names": ["Alternaria leaf spot"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Pleosporales", "family": "Pleosporaceae", "genus": "Alternaria", "species": "jasmini"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["Wind", "Rain splash", "Contaminated tools", "Infected plant material"], "overwintering": ["Infected plant debris on the ground", "On infected stems and leaves remaining on the plant"]}, "environmental_risk": {"risk_factors": ["High humidity", "Prolonged leaf wetness", "Poor air circulation", "Overhead irrigation", "Warm temperatures"], "temp_c_day": [22, 28], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 10}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "< 10% of total leaf area affected with small, scattered lesions.", "moderate": "10-40% of leaf area affected, with some lesions coalescing to form larger necrotic patches.", "severe": "> 40% of leaf area affected, extensive blighting, and premature leaf drop (defoliation) is evident.", "notes": "Severity is assessed on individual symptomatic leaves and averaged across the plant. 'Blight' refers to the rapid browning and death of leaf tissue."}, "symptoms": {"leaves": ["Initial symptoms are small, water-soaked spots.", "Spots enlarge into irregular to circular lesions, 2-10 mm in diameter.", "Lesions develop a tan, grayish-brown, or light brown center.", "A distinct, dark brown or purplish border often surrounds the lesion center.", "Concentric rings are often visible within lesions, creating a 'target' or 'bull's-eye' appearance.", "A diffuse yellow halo may encircle the entire lesion.", "Multiple lesions frequently coalesce, forming large, irregular blighted areas.", "Infected leaves may curl, become distorted, and turn yellow before dropping.", "Severe infection leads to significant premature defoliation."], "stems": ["In severe cases, small, dark, slightly sunken lesions may appear on young stems."], "fruit": [], "roots": [], "whole_plant": ["Reduced plant vigor and poor aesthetic quality.", "Flowering may be reduced in heavily infected plants."], "signs_microscopic_or_visible": ["Under high humidity, a velvety, dark gray to black fungal growth (conidia and conidiophores) may be visible on the surface of lesions, often observable with a hand lens."]}, "lookalikes": [{"condition_name": "Jasmine Anthracnose", "condition_id": "arabian.disease_fungal.jasmine_anthracnose", "key_differences": ["Anthracnose lesions are typically dark brown to black and sunken, often lacking the distinct concentric 'target' rings of leaf blight.", "Anthracnose frequently starts at leaf tips or margins, causing dieback, whereas blight lesions can appear anywhere on the leaf blade.", "Under wet conditions, anthracnose may produce pinkish-orange spore masses, which are absent in Alternaria blight."]}, {"condition_name": "Jasmine Leaf Spot", "condition_id": "arabian.disease_fungal.jasmine_leaf_spot", "key_differences": ["Cercospora leaf spots are generally smaller, more uniformly circular, and remain as discrete spots for longer before coalescing.", "Leaf blight lesions expand more rapidly and irregularly, causing large patches of dead tissue (blight).", "While both can have a gray center and dark border, the 'target' zonation is a much stronger and more common feature of Alternaria leaf blight."]}, {"condition_name": "Jasmine Pest Damage", "condition_id": "arabian.damage_insect.jasmine_pest_damage", "key_differences": ["Pest damage often presents as stippling (tiny yellow/white dots from mites) or holes from chewing, not expanding necrotic lesions.", "Check for physical evidence of pests, such as insects themselves, fine webbing (spider mites), or sticky honeydew.", "Damage from pests like thrips can cause silvery patches, which look different from the zoned, brown lesions of leaf blight."]}], "management": {"cultural": ["Prune to improve air circulation within the plant canopy.", "Avoid overhead irrigation to minimize leaf wetness duration; use soaker hoses or drip irrigation instead.", "Remove and destroy fallen leaves and infected plant debris promptly.", "Ensure adequate spacing between plants."], "biological": ["Bio-fungicides containing *Bacillus subtilis* or *Trichoderma* species may be used preventatively to suppress fungal growth."], "chemical": ["Preventative applications of fungicides are most effective.", "Use broad-spectrum fungicides with active ingredients such as mancozeb, chlorothalonil, or copper hydroxide.", "Rotate fungicides with different modes of action to prevent pathogen resistance."], "notes": "Chemical control should be initiated at the first sign of disease, especially when weather conditions are favorable for development."}, "qa_seeds": {"verification_templates": ["Does the spot on the jasmine leaf have a target-like or bull's-eye pattern?", "Is there a large, brown, dead-looking patch on this leaf?", "Can you see multiple spots merging together into a larger blighted area?", "Is there a dark border around the tan center of the lesion?", "Does this look like a fungal leaf blight on the jasmine plant?"], "attribute_templates": ["What is the color of the halo around the spot?", "Are there concentric rings inside the lesion?", "Describe the shape of the spots on the leaf.", "How large are the brown patches?", "Is the center of the spot a different color than its border?", "Are the leaves turning yellow and falling off?"], "diagnosis_templates": ["What disease causes target-like spots on jasmine leaves?", "Based on the coalescing lesions and concentric rings, what is wrong with this jasmine leaf?", "Is this jasmine plant infected with jasmine leaf blight?"], "counterfactual_templates": ["If the spots were tiny, black, and sunken without rings, would it be jasmine leaf blight?", "If the only symptom was uniform yellowing of the entire leaf, could it be leaf blight?"], "severity_templates": ["What percentage of this leaf's surface is affected by the blight?", "How severe is the jasmine leaf blight infection on this plant: mild, moderate, or severe?", "Are the blight lesions covering more than a third of the leaf?"], "confounders": ["jasmine_anthracnose", "jasmine_leaf_spot", "jasmine_pest_damage"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.25, "lighting_notes": "Use even, diffuse light. Avoid hard shadows or overexposure from direct sun, which can wash out key details like concentric rings and halos.", "occlusion_notes": "The primary symptomatic leaf should be at least 75% visible. Ensure the characteristic lesions are not obscured by other leaves or stems."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Plant Pathologist", "created_at": "2024-05-21T11:00:00Z", "updated_at": "2024-05-21T11:00:00Z", "sources": ["University extension plant disease guides", "APS Compendium of Ornamental Foliage Plant Diseases", "General plant pathology literature"]}}
+{"schema_version": "1.0.0", "disease_id": "arabian.disease_fungal.jasmine_leaf_spot", "aliases": ["Cercospora leaf spot of jasmine", "Jasmine leaf blotch", "Frog-eye leaf spot"], "crop": {"common_name": "Arabian Jasmine", "scientific_name": "Jasminum sambac", "family": "Oleaceae"}, "condition": {"common_name": "Jasmine Leaf Spot", "scientific_name": "Cercospora jasminicola", "alt_names": ["Cercospora leaf spot"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Capnodiales", "family": "Mycosphaerellaceae", "genus": "Cercospora", "species": "jasminicola"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["Wind-driven rain", "Water splash from irrigation", "Contaminated pruning tools", "Movement of infected plant material"], "overwintering": ["Infected leaf debris on the ground", "As mycelium in lesions on living plant tissue"]}, "environmental_risk": {"risk_factors": ["High humidity", "Poor air circulation", "Overhead irrigation", "Prolonged leaf wetness", "Crowded planting"], "temp_c_day": [25, 30], "temp_c_night": [], "relative_humidity_pct": [85, 95], "leaf_wetness_hours_threshold": 10}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "< 5% of leaf area affected on symptomatic leaves; spots are few and scattered.", "moderate": "5-25% of leaf area affected; multiple spots present, some may begin to coalesce; minor yellowing of surrounding tissue.", "severe": "> 25% of leaf area affected; large necrotic blotches from coalesced spots; significant leaf yellowing (chlorosis) and premature leaf drop (defoliation) is evident.", "notes": "Severity is assessed on the most affected leaves. Widespread infection across the whole plant increases overall plant-level severity."}, "symptoms": {"leaves": ["Starts as small, water-soaked spots on the leaf surface.", "Spots enlarge to become circular or slightly irregular, typically 2-10 mm in diameter.", "Mature lesions develop a characteristic tan, grey, or whitish center.", "A distinct, raised, dark brown or purplish-red border surrounds the lighter center.", "A yellow halo may develop around the lesion border, especially on older leaves.", "Multiple spots can merge (coalesce) to form large, irregular necrotic blotches.", "Tiny, pin-point black dots (stromata) may be visible in the center of older lesions, often requiring a hand lens.", "Heavily infected leaves turn yellow and drop prematurely."], "stems": ["Lesions on stems are uncommon but can appear as elongated, slightly sunken, dark spots."], "fruit": [], "roots": [], "whole_plant": ["Reduced plant vigor and a thin, sparse canopy due to defoliation."], "signs_microscopic_or_visible": ["Under high humidity, a sparse, fuzzy or velvety greyish growth (conidiophores and conidia) may appear in the lesion centers."]}, "lookalikes": [{"condition_name": "Jasmine Anthracnose", "condition_id": "arabian.disease_fungal.jasmine_anthracnose", "key_differences": ["Anthracnose lesions are often darker brown or black, more sunken, and may show faint concentric rings ('target spot' look).", "Jasmine leaf spot has a more distinct, pale tan or grey 'frog-eye' center with a prominent dark border.", "Anthracnose can cause more severe tip dieback on young shoots and blight on flowers."]}, {"condition_name": "Jasmine Leaf Blight", "condition_id": "arabian.disease_fungal.jasmine_leaf_blight", "key_differences": ["Blight lesions are typically larger, more irregular in shape, and often start at the leaf margin or tip, spreading rapidly.", "Blighted areas often appear water-soaked or scorched and lack the distinct, well-defined border of Cercospora leaf spot.", "Leaf blight causes a more rapid and widespread death of leaf tissue, often affecting the entire leaf quickly."]}, {"condition_name": "Jasmine Pest Damage", "condition_id": "arabian.pest.jasmine_pest_damage", "key_differences": ["Damage from sucking pests like spider mites appears as fine, yellowish stippling, not distinct, bordered spots.", "Chewing insect damage results in holes, skeletonization, or ragged edges, not necrotic lesions.", "Physical evidence of pests, such as webbing, frass, or the insects themselves, will be present, typically on the leaf underside."]}], "management": {"cultural": ["Prune to improve air circulation within the plant canopy.", "Use drip irrigation or water at the base of the plant to keep foliage dry.", "Remove and destroy fallen leaves and heavily infected plant parts.", "Ensure proper plant spacing to reduce humidity.", "Maintain plant health with appropriate fertilization to increase resilience."], "biological": ["Application of bio-fungicides containing *Bacillus subtilis* or *Trichoderma* species can help suppress pathogen growth."], "chemical": ["Apply preventative fungicides containing active ingredients like chlorothalonil, mancozeb, myclobutanil, or copper compounds.", "Begin applications before or at the first sign of disease, especially during warm, wet weather.", "Rotate fungicides with different modes of action to prevent resistance."], "notes": "Good cultural practices are the foundation of disease management. Chemical controls are most effective when used preventatively."}, "qa_seeds": {"verification_templates": ["Does this jasmine leaf have spots with light-colored centers and dark borders?", "Are there circular, necrotic spots present on the leaf?", "Can you confirm the presence of a 'frog-eye' pattern on any of the leaf lesions?", "Is there a yellow halo surrounding the spots on this leaf?", "Are multiple small spots merging into a larger dead patch?"], "attribute_templates": ["What color is the center of the largest spot?", "Describe the border of the lesion on the leaf.", "Are the spots round or irregular?", "How large are the spots in millimeters?", "Is the leaf tissue around the spots green or yellow?", "Can you see any tiny black specks inside the tan part of the spot?"], "diagnosis_templates": ["Given the tan-centered spots with purple borders, what disease is affecting this jasmine plant?", "Is this plant suffering from jasmine leaf spot?", "What is the likely cause of these 'frog-eye' lesions on the jasmine leaf?"], "counterfactual_templates": ["If the spots were black, sunken, and had a target-like ring pattern, would it still be jasmine leaf spot?", "What would this leaf look like if the damage was caused by spider mites instead of a fungus?"], "severity_templates": ["What percentage of this leaf's surface is covered by lesions?", "How severe is the jasmine leaf spot infection on this plant?", "Would you classify this infection as mild, moderate, or severe?"], "confounders": ["jasmine_anthracnose", "jasmine_leaf_blight", "jasmine_pest_damage"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Use even, diffuse lighting. Avoid direct, harsh sunlight which can wash out colors and create shadows that obscure lesion details like the border and center color.", "occlusion_notes": "The lesion(s) of interest, particularly the center and border, must be fully visible and in focus. Avoid images where symptoms are obscured by other leaves, shadows, or debris."}, "provenance": {"created_by": "AI_PlantPathologist_VQA_Designer", "reviewed_by": "", "created_at": "2023-10-27T11:30:00Z", "updated_at": "2023-10-27T11:30:00Z", "sources": ["University extension guides on ornamental plant diseases", "APS Compendium of Ornamental Foliage Plant Diseases", "General plant pathology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "arabian.unknown.jasmine_pest_damage", "aliases": ["Jasmine insect damage", "Jasmine mite damage", "Arabian jasmine pest feeding"], "crop": {"common_name": "Arabian jasmine", "scientific_name": "Jasminum sambac", "family": "Oleaceae"}, "condition": {"common_name": "Jasmine Pest Damage", "scientific_name": "", "alt_names": ["Insect feeding injury", "Mite damage"], "pathogen": {"type": "pest", "taxonomy": {"kingdom": "Animalia", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "unknown", "transmission": {"vectors": ["Infected plant material", "Human activity (tools, clothing)"], "dispersal": ["Flying (for adult winged insects)", "Crawling", "Wind dispersal (e.g., spider mites)"], "overwintering": ["In plant debris", "In soil near the host plant", "On the host plant as eggs, pupae, or adults"]}, "environmental_risk": {"risk_factors": ["Warm, dry, and dusty conditions (favors spider mites)", "High humidity (favors some caterpillars and scale)", "Presence of tender new growth", "Lack of natural predators", "Sheltered locations with poor air circulation"], "temp_c_day": [24, 32], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area shows damage (e.g., stippling, minor chewing). Pests are difficult to find.", "moderate": "11-40% of leaf area is affected. Visible webbing on some leaves; leaf curling or distortion is apparent. Pests are visible upon inspection.", "severe": ">40% of leaf area is damaged. Extensive webbing covers stems and leaves; significant defoliation or leaf browning; visible pest colonies.", "notes": "Severity is estimated as the percentage of total leaf surface area showing signs of pest activity, including stippling, chewing, mining, webbing, or heavy sooty mold coverage."}, "symptoms": {"leaves": ["Fine, pale yellow or white stippling on the upper leaf surface.", "Leaves appear bronzed, silvery, or bleached from widespread stippling.", "Irregular holes, notches, or skeletonized areas from chewing.", "Winding, discolored trails (mines) are visible within the leaf tissue.", "Leaves are curled, cupped, distorted, or stunted.", "A sticky, clear substance (honeydew) coats leaf surfaces.", "Black, soot-like fungal growth (sooty mold) develops on honeydew."], "stems": ["Fine, silk-like webbing may cover stems and new growth.", "Visible scale insects or mealybugs are clustered on stems, particularly at nodes."], "fruit": [], "roots": [], "whole_plant": ["Stunted growth or reduced plant vigor.", "Premature leaf drop (defoliation) in heavy infestations."], "signs_microscopic_or_visible": ["Tiny moving specks (mites) on the underside of leaves, sometimes with fine webbing.", "Small, winged insects (e.g., whiteflies, thrips) that fly up when the plant is disturbed.", "Visible caterpillars, aphids, or scale insects on leaves and stems.", "Presence of frass (insect excrement), eggs, or cast skins."]}, "lookalikes": [{"condition_name": "Jasmine Leaf Spot", "condition_id": "arabian.fungal.jasmine_leaf_spot", "key_differences": ["Leaf spots are discrete, often circular lesions with defined, sometimes darker, borders, whereas pest damage is typically stippling, irregular chewing, or trails.", "Pest damage may include physical signs like webbing, frass, or the pests themselves, which are absent in fungal leaf spots.", "Pest stippling is a pattern of tiny discolored dots; leaf spots are solid necrotic lesions that can have concentric rings."]}, {"condition_name": "Jasmine Chlorosis", "condition_id": "arabian.abiotic.jasmine_chlorosis", "key_differences": ["Chlorosis is a more uniform yellowing, often in an interveinal pattern, while pest damage appears as discrete stipples, holes, or mines.", "Chlorosis often affects entire leaves or follows a pattern (e.g., only new growth), whereas pest damage is distributed randomly where the pest has fed.", "No physical signs like webbing, holes, or insects are present with chlorosis."]}, {"condition_name": "Jasmine Leaf Blight", "condition_id": "arabian.fungal.jasmine_leaf_blight", "key_differences": ["Blight appears as large, rapidly expanding necrotic blotches, often starting at leaf tips or margins, unlike the smaller, more distinct damage from most pests.", "Blighted areas often appear water-soaked before turning brown or black, a feature not seen with pest feeding.", "Blight can cause rapid dieback of entire shoots, which is a more severe outcome than typical initial pest infestations."]}], "management": {"cultural": ["Regularly inspect plants, especially the undersides of leaves, for early detection.", "Prune and destroy heavily infested plant parts.", "Use a strong jet of water to dislodge pests like aphids and spider mites.", "Encourage natural predators by planting diverse species and avoiding broad-spectrum insecticides."], "biological": ["Introduce or conserve predatory insects such as ladybugs, lacewings, and predatory mites.", "Use microbial insecticides like Bacillus thuringiensis (Bt) for caterpillar control."], "chemical": ["Apply insecticidal soaps or horticultural oils, ensuring thorough coverage of leaf undersides.", "Use neem oil as a repellent and growth regulator for many pests.", "For severe infestations, use targeted systemic or contact insecticides based on proper pest identification."], "notes": "Always identify the specific pest before applying chemical controls to ensure effectiveness and minimize harm to beneficial insects."}, "qa_seeds": {"verification_templates": ["Are there any holes or chewed edges on the leaves?", "Can you see any fine, silk-like webbing on the plant?", "Do the leaves have a pattern of tiny yellow or white dots (stippling)?", "Is there a sticky residue or black, sooty mold on the leaves or stems?", "Are there any visible insects, mites, or caterpillars on the leaves?", "Are any leaves curled, twisted, or otherwise distorted?"], "attribute_templates": ["Describe the shape and location of the damage on the leaf.", "What color is the stippling on the leaves?", "Where on the plant is the webbing most concentrated?", "Are the pests visible on the top or underside of the leaf?", "Is the damage accompanied by sooty mold?", "What kind of insects, if any, can you see?"], "diagnosis_templates": ["Given the stippling and fine webbing, what is the likely cause of the damage?", "The leaves are skeletonized. Is this more likely pest damage or a disease?", "Based on the distorted new growth and presence of sooty mold, what type of pest is likely responsible?"], "counterfactual_templates": ["If the yellowing was uniform between the veins instead of stippled, what could be the cause?", "What would you expect to see if this were a fungal leaf spot instead of mite damage?"], "severity_templates": ["What percentage of the leaf surface is covered in stippling or chewing marks?", "On a scale of mild to severe, how would you rate this pest infestation?", "Is the webbing localized to a single leaf, or is it covering entire branches?"], "confounders": ["jasmine_leaf_spot", "jasmine_chlorosis", "jasmine_leaf_blight"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Use bright, diffuse light to avoid harsh shadows that can obscure fine details like webbing, stippling, or small pests. Overcast days are ideal.", "occlusion_notes": "Ensure the symptomatic leaf surface is clearly visible. For pests that hide on the underside, an image of the bottom of the leaf is critical."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["University extension guides on ornamental plant pests", "APS Compendium of Ornamental Foliage Plant Diseases", "General entomology and acarology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "arabian.physiological_symptom.jasmine_senescence_or_dry", "aliases": ["jasmine drought stress", "jasmine water stress", "jasmine leaf dieback", "natural leaf aging"], "crop": {"common_name": "Arabian Jasmine", "scientific_name": "Jasminum sambac", "family": "Oleaceae"}, "condition": {"common_name": "Senescence or Dryness", "scientific_name": null, "alt_names": ["Drought Stress", "Water Stress", "Natural Aging"], "pathogen": {"type": "physiological_disorder", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "physiological_symptom", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Inadequate or inconsistent watering", "Low ambient humidity", "High temperatures and intense sun exposure", "Poorly draining or overly sandy soil", "Root-bound conditions in containers"], "temp_c_day": [28, 38], "temp_c_night": [], "relative_humidity_pct": [0, 40], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaves, typically the oldest and lowest on the plant, show uniform yellowing or have brown, crispy tips.", "moderate": "11-40% of leaves are yellow or brown, with some leaf drop evident. Minor wilting may be visible on younger stems.", "severe": ">40% of the plant's foliage is affected, with significant leaf drop, widespread wilting, and visible stem dieback.", "notes": "Severity is based on the total percentage of foliage exhibiting symptoms like yellowing, browning, wilting, or desiccation. The pattern of symptom distribution is also a key indicator."}, "symptoms": {"leaves": ["Older, lower leaves turn a uniform, solid yellow before browning.", "Leaf margins and tips dry out, turning brown and becoming brittle or crispy to the touch.", "Affected leaves may curl inwards or downwards.", "Leaves lose turgor and appear limp or wilted.", "Widespread, premature leaf drop, especially of older leaves.", "Unlike nutrient deficiencies, yellowing is typically not interveinal.", "Unlike fungal spots, browning is generalized and lacks distinct lesion borders."], "stems": ["Younger, green stems may droop or wilt.", "In severe cases, stem tips may shrivel and die back.", "Stems may become woody and brittle."], "fruit": ["Flower buds may dry up and fall off before opening.", "Open flowers may wilt and turn brown prematurely."], "roots": [], "whole_plant": ["Overall drooping or wilting appearance.", "Reduced growth rate and sparse foliage.", "General lack of vigor and poor flowering."], "signs_microscopic_or_visible": []}, "lookalikes": [], "management": {"cultural": ["Provide consistent moisture. Water thoroughly when the top 1-2 inches of soil are dry.", "Avoid both waterlogging and complete soil dry-out.", "Increase ambient humidity through misting, grouping plants, or using a pebble tray with water.", "Mulch outdoor plants to conserve soil moisture.", "Ensure containers have adequate drainage holes.", "Protect from intense afternoon sun and hot, drying winds."], "biological": [], "chemical": [], "notes": "Management is corrective and preventative, focusing on optimizing the plant's environment, particularly water availability and humidity."}, "qa_seeds": {"verification_templates": ["Are there leaves that are entirely yellow?", "Do the brown areas on the leaves feel dry and crispy?", "Does the plant appear to be drooping or wilting?", "Are the yellowing leaves located primarily at the bottom of the plant?", "Is there evidence of leaf drop on or around the plant?"], "attribute_templates": ["What is the color pattern on the affected leaves?", "Describe the texture of the leaf margins.", "Where on the plant are most of the symptomatic leaves?", "Is the yellowing uniform or is it between the veins?", "How would you describe the overall posture of the stems?", "Are there any distinct spots or lesions on the leaves?"], "diagnosis_templates": ["Based on the crispy brown leaf tips and uniform yellowing of lower leaves, what is the problem?", "The jasmine plant is wilting and dropping its oldest leaves. What is the likely cause?", "Given the absence of pests and fungal spots, what physiological issue is suggested by the widespread leaf browning?"], "counterfactual_templates": ["If this were a fungal leaf blight, what different visual cues would you look for?", "What would the yellowing pattern look like if this were iron chlorosis instead of senescence?", "If spider mites were causing the damage, what signs would be present that are absent here?"], "severity_templates": ["On a scale of mild to severe, how would you rate the dryness of this plant?", "What percentage of the total leaves on the plant are yellow, brown, or have fallen off?", "Is the wilting affecting just a few leaves or the entire plant?"], "confounders": ["jasmine_chlorosis", "jasmine_leaf_blight", "jasmine_pest_damage"]}, "data_requirements": {"min_resolution_px": 480, "min_roi_fraction": 0.5, "lighting_notes": "Use diffuse, even lighting. Avoid harsh, direct sunlight which can create glare and deep shadows, obscuring leaf texture and true color.", "occlusion_notes": "Image should show a significant portion of the plant, including both upper and lower leaves, to allow assessment of symptom distribution. Minimize occlusion from other plants or background objects."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Plant Pathologist", "created_at": "2023-10-27T11:30:00Z", "updated_at": "2023-10-27T11:30:00Z", "sources": ["University extension guides on woody ornamental care", "Horticultural fact sheets for Jasminum spp.", "APS Compendium of Ornamental Foliage Plant Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "bitter.disease_fungal.gourd_anthracnose", "aliases": ["bitter gourd fruit rot", "cucurbit anthracnose"], "crop": {"common_name": "bitter gourd", "scientific_name": "Momordica charantia", "family": "Cucurbitaceae"}, "condition": {"common_name": "Gourd Anthracnose", "scientific_name": "Colletotrichum orbiculare", "alt_names": ["anthracnose of cucurbits"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Sordariomycetes", "order": "Glomerellales", "family": "Glomerellaceae", "genus": "Colletotrichum", "species": "orbiculare"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["rain splash", "wind-driven rain", "contaminated tools", "human activity", "infected seed"], "overwintering": ["infected crop debris", "infected seed", "volunteer cucurbit plants"]}, "environmental_risk": {"risk_factors": ["prolonged leaf wetness", "high relative humidity (>90%)", "warm temperatures", "dense canopy with poor air circulation", "overhead irrigation"], "temp_c_day": [22, 28], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 10}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf or fruit surface area affected. Lesions are few, small, and not coalescing.", "moderate": "11-40% of surface area affected. Multiple lesions are present, some may be coalescing. Minor fruit rot or stem cankers are visible.", "severe": ">40% of surface area affected. Widespread blighting, extensive lesion coalescence, severe fruit rot, and potential vine dieback.", "notes": "Severity is assessed on the most affected plant part (leaf or fruit). For whole-plant assessment, consider the overall percentage of symptomatic tissue."}, "symptoms": {"leaves": ["Initial symptoms are small, circular, water-soaked spots.", "Spots enlarge to become dark brown or black, often with a slightly lighter center.", "A distinct yellow halo may encircle older lesions.", "The center of mature lesions often becomes brittle and falls out, creating a 'shot-hole' effect."], "stems": ["Elongated, sunken, dark-colored cankers can form on stems and petioles.", "Severe cankers can girdle the vine, causing wilting and death of the plant parts beyond the canker."], "fruit": ["Circular, water-soaked, sunken spots appear on the fruit surface.", "Lesions enlarge rapidly, turning black and becoming deeply sunken.", "Under humid conditions, the center of the lesion fills with a pinkish or salmon-colored gelatinous mass of spores.", "Infection leads to a bitter taste and rapid rotting of the fruit."], "roots": [], "whole_plant": ["Stunted growth and reduced vigor in heavily infected plants.", "Widespread defoliation and vine dieback can occur in severe epidemics."], "signs_microscopic_or_visible": ["Pink, orange, or salmon-colored, moist spore masses (acervuli) visible in the center of mature lesions, particularly on fruit."]}, "lookalikes": [{"condition_name": "Gourd Downy Mildew", "condition_id": "bitter.disease_fungal.gourd_downy_mildew", "key_differences": ["Anthracnose lesions are circular and dark brown/black; Downy Mildew lesions are angular (vein-limited) and initially pale green or yellowish.", "Anthracnose produces pink/orange spore masses in lesion centers; Downy Mildew produces a purplish-gray, fuzzy mold on the underside of leaves.", "Anthracnose causes a 'shot-hole' symptom; Downy Mildew causes leaf necrosis but not distinct holes.", "Anthracnose causes severe, sunken, black rot on fruit; Downy Mildew symptoms are primarily on the leaves."]}], "management": {"cultural": ["Use certified, disease-free seed.", "Practice a crop rotation of at least 2 years with non-cucurbit crops.", "Improve air circulation by using trellises and appropriate plant spacing.", "Avoid overhead irrigation to minimize leaf wetness; prefer drip or furrow irrigation.", "Remove and destroy infected plant debris promptly after harvest."], "biological": ["Application of bio-fungicides containing *Bacillus subtilis* or *Trichoderma* species may help suppress the disease."], "chemical": ["Apply protective fungicides like mancozeb or chlorothalonil before disease onset, especially during favorable weather conditions.", "After infection, use systemic fungicides such as those in the strobilurin or triazole groups, rotating chemical classes to prevent resistance."], "notes": "An integrated approach combining cultural practices with timely fungicide applications is most effective. Consult local agricultural extension services for currently recommended and registered products."}, "qa_seeds": {"verification_templates": ["Does this bitter gourd fruit have a sunken, black spot on it?", "Is the leaf in the image exhibiting a 'shot-hole' symptom?", "Can you confirm the presence of a pinkish mass in the center of the lesion?", "Is the spot on this leaf circular and dark brown?", "Is there evidence of an elongated, dark canker on the stem?", "Does this image show symptoms of anthracnose?"], "attribute_templates": ["What is the shape of the lesion on the fruit?", "What color is the substance in the middle of the dark spot?", "Are the lesions on the leaf surrounded by a yellow halo?", "Describe the appearance of the spots on the leaves.", "Are the spots on the fruit raised, flat, or sunken?", "Has the center of the leaf spot fallen out?"], "diagnosis_templates": ["What disease causes circular, sunken, black lesions with pink centers on bitter gourd fruit?", "Based on the 'shot-hole' symptoms and dark circular spots on the leaves, what is the likely disease?", "A bitter gourd plant has wilting vines and sunken, dark cankers on its stems. What disease could be responsible?"], "counterfactual_templates": ["If the spots on the leaf were angular and yellow with a fuzzy purple growth on the underside, what disease would it be instead of anthracnose?", "What would this fruit look like if it were healthy instead of having anthracnose?"], "severity_templates": ["What percentage of this fruit's surface is affected by anthracnose rot?", "How would you classify the severity of the anthracnose on this leaf: mild, moderate, or severe?", "Are the anthracnose lesions on this plant coalescing?"], "confounders": ["bitter.disease_fungal.gourd_downy_mildew"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Use even, diffuse lighting. Avoid hard shadows, overexposure, and backlighting that can obscure lesion color, texture, and the presence of spore masses.", "occlusion_notes": "The primary symptom (e.g., a developing lesion on a fruit or leaf) should be clearly visible and not significantly obscured by other plant parts, debris, or water droplets."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["General university extension guides for cucurbit diseases", "APS Compendium of Cucurbit Diseases", "Peer-reviewed plant pathology literature"]}}
+{"schema_version": "1.0.0", "disease_id": "bitter.disease_fungal.gourd_downy_mildew", "aliases": ["downy mildew of bitter gourd", "cucurbit downy mildew on bitter gourd"], "crop": {"common_name": "bitter gourd", "scientific_name": "Momordica charantia", "family": "Cucurbitaceae"}, "condition": {"common_name": "gourd downy mildew", "scientific_name": "Pseudoperonospora cubensis", "alt_names": ["cucurbit downy mildew"], "pathogen": {"type": "disease_oomycete", "taxonomy": {"kingdom": "Stramenopila", "phylum": "Oomycota", "class": "Oomycetes", "order": "Peronosporales", "family": "Peronosporaceae", "genus": "Pseudoperonospora", "species": "cubensis"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["wind-borne sporangia", "water splash", "contaminated tools", "human activity"], "overwintering": ["on living cucurbit hosts in frost-free regions", "in greenhouses on infected plant material"]}, "environmental_risk": {"risk_factors": ["high relative humidity", "prolonged periods of leaf wetness", "cool to moderate temperatures", "dense plant canopy with poor air circulation"], "temp_c_day": [15, 23], "temp_c_night": [10, 18], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 6}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area affected. A few scattered, small, angular yellow spots are visible on the upper leaf surface.", "moderate": "11-40% of leaf area affected. Lesions are more numerous, larger, and may begin to coalesce. Grayish-purple sporulation is visible on the leaf underside. Some necrotic browning may appear in the center of older lesions.", "severe": ">40% of leaf area affected. Widespread leaf necrosis, blighting, and upward curling of leaf margins. Significant defoliation is occurring, exposing fruit to sunscald.", "notes": "Severity is assessed on the most symptomatic leaves. The presence and density of sporulation on the abaxial (lower) leaf surface is a key diagnostic and severity indicator."}, "symptoms": {"leaves": ["Initial symptoms are small, pale green or water-soaked spots on the upper leaf surface.", "Lesions quickly become distinctly yellow (chlorotic) and angular, bounded by leaf veins.", "On the corresponding lower leaf surface, a fuzzy, downy growth that is grayish to purplish-black appears, especially during periods of high humidity.", "As the disease progresses, the angular yellow spots turn brown to black and become necrotic.", "Multiple lesions often coalesce, leading to large, blighted areas on the leaf.", "Severely infected leaves become brittle, curl upwards, and may drop prematurely (defoliation).", "Lesions are most common on older, crown leaves first."], "stems": ["Stems are typically not directly affected."], "fruit": ["Fruit is not directly infected, but its size, quality, and quantity are reduced due to loss of photosynthetic area from defoliation.", "Premature defoliation can lead to sunscald on developing fruit."], "roots": [], "whole_plant": ["Reduced plant vigor and stunted growth.", "Significant yield loss in severe infections."], "signs_microscopic_or_visible": ["Visible grayish-purple, downy sporulation (sporangiophores and sporangia) on the abaxial (lower) leaf surface, corresponding to the yellow lesions on top."]}, "lookalikes": [{"condition_name": "gourd anthracnose", "condition_id": "bitter.disease_fungal.gourd_anthracnose", "key_differences": ["Lesion Shape: Anthracnose lesions are circular to irregular with dark, defined borders, often developing a 'shot-hole' appearance, whereas downy mildew lesions are strictly angular and vein-limited.", "Signs: Downy mildew produces a grayish-purple fuzzy growth on the leaf underside, while anthracnose may produce pinkish-orange spore masses in concentric rings within the lesion during wet weather.", "Affected Parts: Anthracnose commonly causes sunken, dark cankers on stems and fruit, which is not a symptom of downy mildew."]}, {"condition_name": "gourd healthy", "condition_id": "bitter.misc.gourd_healthy", "key_differences": ["Color: Healthy leaves have a uniform green color, lacking the distinct angular yellow (chlorotic) or brown (necrotic) spots of downy mildew.", "Texture: The underside of a healthy leaf is smooth and green, without the fuzzy, grayish-purple growth characteristic of downy mildew.", "Overall Appearance: A healthy plant shows vigorous growth with a full canopy, not the premature leaf drop or blighting seen in severe downy mildew infections."]}], "management": {"cultural": ["Plant resistant or tolerant cultivars when available.", "Maximize air circulation by using recommended plant spacing and trellising.", "Use drip irrigation instead of overhead sprinklers to minimize leaf wetness duration.", "Scout fields regularly, especially after cool, moist weather events.", "Remove and destroy infected plant debris at the end of the season.", "Practice crop rotation with non-cucurbit crops for at least 2-3 years."], "biological": ["Applications of bio-fungicides containing *Bacillus subtilis* or *Streptomyces* species may provide some suppression when used preventatively."], "chemical": ["Apply protectant fungicides (e.g., mancozeb, chlorothalonil) before disease onset, especially when weather forecasts are favorable for infection.", "Use systemic or translaminar fungicides (e.g., cymoxanil, mandipropamid, oxathiapiprolin) for curative action, following local regulations.", "Rotate fungicides with different modes of action (FRAC groups) to prevent the development of pathogen resistance."], "notes": "Effective management relies on an integrated approach. Chemical control is most effective when combined with cultural practices that reduce environmental risk."}, "qa_seeds": {"verification_templates": ["Does this leaf have yellow spots that are angular or limited by veins?", "Is there a fuzzy, dark growth on the underside of this bitter gourd leaf?", "Can you see any grayish-purple mold on the bottom of the leaf?", "Are the lesions on the upper leaf surface chlorotic and angular?", "Is the leaf showing signs of turning brown and necrotic within the angular spots?", "Are the edges of the leaf curling upwards?"], "attribute_templates": ["What is the shape of the yellow lesions on the leaf?", "What color is the downy growth on the abaxial leaf surface?", "Are the lesions circular or angular?", "On which side of the leaf is the fuzzy growth located?", "Describe the color of the spots on the top of the leaf.", "What plant part is showing the most severe symptoms?"], "diagnosis_templates": ["Based on the angular, vein-limited yellow spots and purplish growth on the leaf underside, what disease is this?", "What is the likely cause of these angular chlorotic lesions on a bitter gourd leaf?", "This plant has symptoms of downy mildew. Is that correct?", "What disease causes fuzzy, gray-purple sporulation on the bottom of bitter gourd leaves?"], "counterfactual_templates": ["If the spots were circular and sunken with dark borders, what disease would it be instead?", "What would the underside of the leaf look like if this were a healthy plant?", "If the symptoms were only on the fruit, what disease would be more likely?"], "severity_templates": ["What percentage of this leaf's surface is affected by lesions?", "Would you classify this infection as mild, moderate, or severe?", "Based on the widespread necrosis and leaf curling, how severe is this downy mildew infection?"], "confounders": ["gourd_anthracnose"]}, "data_requirements": {"min_resolution_px": 1024, "min_roi_fraction": 0.4, "lighting_notes": "Use diffuse, even lighting. Avoid direct, harsh sunlight which can wash out colors and hide textures. An image of the leaf underside is critical for confident diagnosis and may require supplemental light.", "occlusion_notes": "The symptomatic leaf should be the main subject and largely unobscured. If possible, provide separate, clear images of both the upper (adaxial) and lower (abaxial) leaf surfaces."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["University extension service guides on cucurbit diseases", "APS Compendium of Cucurbit Diseases", "General plant pathology diagnostic manuals"]}}
+{"schema_version": "1.0.0", "disease_id": "bitter.unknown.gourd_healthy", "aliases": ["healthy bitter gourd", "normal bitter gourd", "asymptomatic bitter gourd"], "crop": {"common_name": "bitter gourd", "scientific_name": "Momordica charantia", "family": "Cucurbitaceae"}, "condition": {"common_name": "healthy", "scientific_name": null, "alt_names": ["asymptomatic", "normal"], "pathogen": {"type": "abiotic", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "unknown", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Optimal growing conditions", "Absence of pathogen pressure", "Proper nutrition and irrigation"], "temp_c_day": [25, 32], "temp_c_night": [18, 22], "relative_humidity_pct": [60, 75], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Plant is fully asymptomatic. No visible lesions, discoloration, or malformation on any plant part.", "moderate": "N/A", "severe": "N/A", "notes": "This rubric confirms the absence of disease. Any visible symptoms would classify the plant as unhealthy and require a different diagnosis."}, "symptoms": {"leaves": ["Uniformly green color, from light to dark green depending on variety and age.", "Leaves are deeply lobed, typically with 5-7 lobes.", "Leaf surfaces are free of spots, lesions, yellowing (chlorosis), or powdery growth.", "Leaf blades are turgid and well-expanded.", "Petioles are firm and green without cankers."], "stems": ["Stems are green, slender, and exhibit vigorous vining.", "No cankers, lesions, or discoloration present.", "Tendrils are green and functional."], "fruit": ["Fruit shape is characteristic of the variety, typically oblong or ovoid.", "Skin is warty or bumpy with a uniform green color (may turn yellow/orange when fully ripe).", "No sunken spots, soft rots, or oozing substances."], "roots": [], "whole_plant": ["Vigorous and upright or vining growth habit.", "No stunting, wilting, or general decline."], "signs_microscopic_or_visible": ["No visible fungal growth (mycelium, spores), bacterial ooze, or other pathogen signs."]}, "lookalikes": [{"condition_name": "gourd anthracnose", "condition_id": "bitter.fungal.gourd_anthracnose", "key_differences": ["Healthy leaves are uniformly green, while anthracnose causes water-soaked, circular, dark-brown to black spots, often with a yellow halo.", "Healthy fruit has firm, unblemished skin, whereas anthracnose causes circular, sunken, black cankers on the fruit, which may ooze pinkish spore masses.", "Healthy stems are clean and green; anthracnose can cause elongated, dark lesions on stems."]}, {"condition_name": "gourd downy mildew", "condition_id": "bitter.oomycete.gourd_downy_mildew", "key_differences": ["Healthy leaves have a uniform green upper surface, whereas downy mildew causes angular, yellow to brownish spots on the upper leaf surface, bounded by leaf veins.", "The underside of a healthy leaf is clean, while downy mildew produces a purplish-gray, fuzzy or 'downy' growth on the underside of leaf spots, especially in humid conditions.", "Healthy leaves remain turgid, while leaves with severe downy mildew may become necrotic, curl, and die."]}], "management": {"cultural": ["Use certified disease-free seeds or transplants.", "Ensure proper plant spacing to promote good air circulation.", "Practice crop rotation with non-cucurbit crops.", "Use drip irrigation or avoid overhead watering to minimize leaf wetness.", "Maintain balanced soil fertility based on soil testing."], "biological": ["Promote beneficial soil microbes through the application of compost and organic matter."], "chemical": ["Not applicable for a healthy plant. Management focuses on preventative cultural practices."], "notes": "Management practices for a healthy plant are preventative, aiming to maintain vigor and avoid conditions favorable for disease development."}, "qa_seeds": {"verification_templates": ["Is the leaf shown uniformly green and free of spots?", "Does the plant exhibit vigorous growth without any signs of wilting or stunting?", "Are the stems and petioles green and without any lesions?", "Is the fruit surface free of sunken spots, rot, or discoloration?", "Confirm that there is no powdery or fuzzy growth on any part of the plant."], "attribute_templates": ["What color are the leaves?", "Describe the texture of the fruit's skin.", "Are there any spots or lesions on the upper surface of the leaf?", "Is there any fuzzy growth on the underside of the leaf?", "How would you describe the overall vigor of the plant?", "Are the leaves lobed?"], "diagnosis_templates": ["Is this bitter gourd plant healthy?", "Does the plant show any symptoms of disease or stress?", "Based on the absence of symptoms, what is the condition of this plant?"], "counterfactual_templates": ["If there were angular, yellow spots on the leaves, what disease might it be?", "What would the fruit look like if it had anthracnose?", "If you saw fuzzy purple growth on the leaf underside, would the plant still be healthy?"], "severity_templates": ["How severe are the symptoms on this plant?", "What percentage of the plant is affected by disease?", "On a scale of healthy to severely diseased, how would you rate this plant?"], "confounders": ["gourd_anthracnose", "gourd_downy_mildew"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse lighting is preferred. Avoid harsh shadows or overexposure that can obscure leaf color and texture.", "occlusion_notes": "The key plant parts (leaves, stems, fruit) should be clearly visible and not heavily occluded by other leaves or objects."}, "provenance": {"created_by": "VQA Dataset Designer (Expert Plant Pathologist)", "reviewed_by": "VQA Dataset Designer (Expert Plant Pathologist)", "created_at": "2024-05-21T11:00:00Z", "updated_at": "2024-05-21T11:00:00Z", "sources": ["General cucurbit production guides", "University extension fact sheets on bitter gourd cultivation", "APS Compendium of Cucurbit Diseases and Pests"]}}
+{"schema_version": "1.0.0", "disease_id": "cauliflower.disease_bacterial.bacterial_spot_rot", "aliases": ["bacterial leaf spot of crucifers", "bacterial spot"], "crop": {"common_name": "cauliflower", "scientific_name": "Brassica oleracea var. botrytis", "family": "Brassicaceae"}, "condition": {"common_name": "bacterial spot rot", "scientific_name": "Pseudomonas syringae pv. maculicola", "alt_names": ["bacterial leaf spot"], "pathogen": {"type": "disease_bacterial", "taxonomy": {"kingdom": "Bacteria", "phylum": "Pseudomonadota", "class": "Gammaproteobacteria", "order": "Pseudomonadales", "family": "Pseudomonadaceae", "genus": "Pseudomonas", "species": "P. syringae"}}}, "issue_type": "disease_bacterial", "transmission": {"vectors": ["insects (e.g., flea beetles)", "humans (via tools and equipment)"], "dispersal": ["rain splash", "wind-driven rain", "overhead irrigation water", "infected seed"], "overwintering": ["infected crop debris", "in soil", "on seeds", "on volunteer crucifer plants and weeds"]}, "environmental_risk": {"risk_factors": ["cool, wet weather", "prolonged periods of leaf wetness", "high humidity", "overhead irrigation", "dense plant canopies with poor air circulation"], "temp_c_day": [12, 24], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 12}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-5% of leaf surface affected with small, distinct spots. No curd symptoms.", "moderate": "6-25% of leaf surface affected; some spots may be coalescing. Minor spotting on curd.", "severe": ">25% of leaf surface affected, with large necrotic areas or defoliation. Significant curd rot present.", "notes": "Severity is typically assessed on the most affected wrapper leaves. For marketability, any visible rot on the curd (head) may be considered severe."}, "symptoms": {"leaves": ["Initial symptoms are small (1-3 mm), water-soaked, circular to angular spots.", "Spots rapidly turn dark brown to black.", "A narrow, chlorotic (yellow) halo may surround the dark spots.", "Lesions can coalesce under wet conditions to form large, irregular necrotic patches.", "The center of older spots may dry out and fall away, creating a 'shot-hole' effect.", "Unlike black rot, lesions are not V-shaped and are not limited by major veins."], "stems": ["Stem infections are less common but can appear as dark, elongated lesions."], "fruit": ["On the curd (head), symptoms manifest as small, brown to black, sunken spots.", "Spots on the curd can enlarge and merge, leading to a soft, watery rot.", "Secondary pathogens often colonize the rotted curd, producing a foul odor."], "roots": ["Roots are not affected by this pathogen."], "whole_plant": ["In severe infections, lower wrapper leaves may yellow and drop prematurely.", "The head may become unmarketable due to discoloration and rot."], "signs_microscopic_or_visible": ["Under a microscope, bacterial streaming can be observed from the edge of a cut lesion in a drop of water."]}, "lookalikes": [{"condition_name": "black rot", "condition_id": "cauliflower.disease_bacterial.black_rot", "key_differences": ["Black rot causes distinct V-shaped lesions that start at the leaf margin and point inward.", "Veins within the black rot 'V' turn black, a key diagnostic feature absent in bacterial spot.", "Bacterial spot lesions are circular/angular and scattered, not typically originating at the leaf edge."]}, {"condition_name": "downy mildew", "condition_id": "cauliflower.disease_fungal.downy_mildew", "key_differences": ["Downy mildew produces a visible, fluffy, grayish-white fungal growth on the underside of leaves.", "Upper leaf surface symptoms of downy mildew are often yellow, angular patches bounded by veins, not small black spots.", "Bacterial spot lesions are initially water-soaked and turn black, never showing fuzzy fungal growth."]}], "management": {"cultural": ["Plant certified disease-free seed and transplants.", "Practice crop rotation with non-cruciferous crops for at least 2-3 years.", "Promote good air circulation by using recommended plant spacing.", "Avoid overhead irrigation to minimize leaf wetness; prefer drip irrigation.", "Incorporate or remove crop debris promptly after harvest to reduce pathogen survival."], "biological": ["Some bio-fungicides containing *Bacillus subtilis* may provide partial suppression when applied preventatively."], "chemical": ["Preventative applications of copper-based bactericides can reduce infection but are not effective once symptoms are widespread.", "Always consult local extension service recommendations for currently registered and effective products."], "notes": "Management relies heavily on prevention, as chemical controls are often unsatisfactory once the disease is established in a field."}, "qa_seeds": {"verification_templates": ["Does this cauliflower leaf have small, dark, circular spots?", "Are there any water-soaked lesions visible on the leaves?", "Is there evidence of brown or black rot on the cauliflower head?", "Can you see any spots surrounded by a yellow halo?", "Do the centers of any spots appear to have fallen out, creating a 'shot-hole' look?"], "attribute_templates": ["What color are the spots on the leaves?", "Describe the shape of the lesions on the cauliflower curd.", "Are the spots on the leaves large and V-shaped or small and circular?", "Is there any fuzzy or moldy growth visible on the underside of the leaf?", "How are the spots distributed across the leaf surface?"], "diagnosis_templates": ["Given the small, black, water-soaked spots, what disease is likely affecting this cauliflower?", "Is this plant showing symptoms of bacterial spot rot or black rot?", "What is the cause of the sunken, dark spots on the cauliflower head?"], "counterfactual_templates": ["If the lesions were large, V-shaped, and had black veins, what disease would it be instead?", "If there was a fluffy white growth on the bottom of the leaf, would this still be bacterial spot rot?"], "severity_templates": ["What percentage of this leaf's surface is covered by spots?", "Based on the number and size of lesions, would you classify this infection as mild, moderate, or severe?", "How extensive is the rot on the cauliflower head?"], "confounders": ["black_rot", "downy_mildew"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Diffuse, even lighting is preferred. Avoid harsh shadows or direct sunlight that can obscure subtle features like water-soaking or chlorotic halos.", "occlusion_notes": "The primary symptomatic area (leaf or curd) should be clearly visible and not obscured by other plant parts. At least 80% of the lesion of interest should be in focus."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "N/A", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["University Extension Plant Disease Guides", "APS Compendium of Brassica Diseases", "General Plant Pathology Textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "cauliflower.disease_fungal.black_rot", "aliases": ["Xanthomonas leaf blight", "bacterial blight"], "crop": {"common_name": "cauliflower", "scientific_name": "Brassica oleracea var. botrytis", "family": "Brassicaceae"}, "condition": {"common_name": "black rot", "scientific_name": "Xanthomonas campestris pv. campestris", "alt_names": [], "pathogen": {"type": "disease_bacterial", "taxonomy": {"kingdom": "Bacteria", "phylum": "Pseudomonadota", "class": "Gammaproteobacteria", "order": "Lysobacterales", "family": "Lysobacteraceae", "genus": "Xanthomonas", "species": "X. campestris"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": ["splashing water", "wind-driven rain", "insects (minor)"], "dispersal": ["infected seed", "infected transplants", "contaminated farm equipment", "water splash from rain or irrigation"], "overwintering": ["infected crop debris in soil", "infected seed", "cruciferous weeds (e.g., wild mustard)"]}, "environmental_risk": {"risk_factors": ["high humidity", "warm temperatures", "prolonged leaf wetness", "dense planting", "overhead irrigation"], "temp_c_day": [25, 30], "temp_c_night": [], "relative_humidity_pct": [80, 100], "leaf_wetness_hours_threshold": 10}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of total plant foliage is affected. One or two outer leaves show characteristic V-shaped lesions.", "moderate": "11-40% of foliage is affected. Multiple leaves have lesions, some vein blackening is evident beyond the initial lesion, and minor leaf drop may occur.", "severe": ">40% of foliage is affected. Widespread lesions, extensive vein blackening, significant leaf drop, stunting, and/or symptoms on the curd are present.", "notes": "Severity is assessed on the whole plant. Any visible symptoms (black spots, decay) on the cauliflower head (curd) automatically classifies the infection as severe."}, "symptoms": {"leaves": ["Yellow, V-shaped lesions appear at the leaf margin, with the point of the 'V' directed towards the leaf base.", "Lesions enlarge and become tan to brown with a dry, papery texture.", "Veins within the V-shaped lesion turn black, a key diagnostic feature.", "This blackening of veins may extend down the petiole.", "Infected leaves may wilt, collapse, and drop prematurely.", "Systemic infection can cause one side of a plant to yellow or wilt."], "stems": ["A cross-section of an infected stem or petiole reveals a black ring in the vascular tissue."], "fruit": ["The cauliflower head (curd) can develop black spots or a systemic vascular discoloration.", "Secondary soft rot bacteria often invade, leading to a mushy, foul-smelling decay of the head."], "roots": ["No primary symptoms, but vascular discoloration from the stem can extend into the main root."], "whole_plant": ["Stunting and uneven growth can occur, especially in young plants infected systemically.", "Severe infection leads to significant defoliation and unmarketable heads."], "signs_microscopic_or_visible": ["Under very humid conditions, droplets of bacterial ooze may be visible on the surface of lesions."]}, "lookalikes": [{"condition_name": "downy mildew", "condition_id": "cauliflower.disease_oomycete.downy_mildew", "key_differences": ["Downy mildew produces a purplish-gray, fuzzy mold on the underside of leaves; black rot does not.", "Downy mildew lesions are angular and yellow, but not typically V-shaped originating from the leaf edge.", "Downy mildew does not cause the characteristic blackening of the veins seen in black rot.", "Downy mildew is favored by cooler, moist conditions, whereas black rot prefers warmer temperatures."]}, {"condition_name": "bacterial spot rot", "condition_id": "cauliflower.disease_bacterial.bacterial_spot_rot", "key_differences": ["Bacterial spot lesions are small, circular, and water-soaked, often with a 'shot-hole' appearance, not large and V-shaped.", "While lesions may darken, bacterial spot does not cause the extensive, systemic blackening of major leaf veins.", "Lesions can appear anywhere on the leaf, not primarily at the margins."]}, {"condition_name": "healthy", "condition_id": "cauliflower.healthy.healthy", "key_differences": ["Healthy leaves are uniformly green to blue-green without any yellow or tan lesions.", "Veins in healthy leaves are green or pale, not black.", "The plant is vigorous with no signs of wilting, stunting, or leaf drop."]}], "management": {"cultural": ["Use certified, disease-free seed and transplants.", "Practice a crop rotation of at least 3 years, avoiding all cruciferous crops.", "Control cruciferous weeds in and around the field.", "Promote good air circulation through proper plant spacing.", "Avoid overhead irrigation to minimize leaf wetness and water splashing.", "Incorporate crop residue promptly after harvest to speed up decomposition."], "biological": ["Some beneficial microbes have shown suppressive activity, but they are not a standalone control method."], "chemical": ["Preventative applications of copper-based bactericides can help reduce the spread but are not curative.", "Actigard (acibenzolar-S-methyl) can be used to induce the plant's natural defenses before infection occurs."], "notes": "Management must be preventative. Once infection is established, especially systemically, control is very difficult."}, "qa_seeds": {"verification_templates": ["Does this image show a V-shaped yellow lesion on a cauliflower leaf margin?", "Are the veins within the discolored area of the leaf black?", "Is there a large, tan, V-shaped lesion on this leaf?", "Is the plant in the image showing signs of one-sided wilting or yellowing?", "Does the cross-section of this cauliflower stem show a black ring?"], "attribute_templates": ["What is the shape of the lesion on the leaf?", "What color are the veins inside the yellow lesion?", "Where on the leaf does the lesion appear to start?", "Describe the texture of the lesion.", "Is there any fuzzy growth on the underside of the leaf?", "Are there any black spots on the cauliflower head?"], "diagnosis_templates": ["Given the V-shaped lesions and black veins, what disease is affecting this cauliflower plant?", "Is this cauliflower infected with black rot?", "Are the symptoms in this image consistent with an infection by Xanthomonas campestris?"], "counterfactual_templates": ["If the lesions were small and circular with a 'shot-hole' appearance, would it still be black rot?", "If there was a fuzzy, purple mold on the underside of the leaf, what disease would be more likely?"], "severity_templates": ["What percentage of this plant's leaves are showing symptoms?", "Based on the extent of the symptoms, would you classify this case of black rot as mild, moderate, or severe?", "Is the cauliflower head itself showing any signs of decay or black spots?"], "confounders": ["downy_mildew", "bacterial_spot_rot"]}, "data_requirements": {"min_resolution_px": 800, "min_roi_fraction": 0.25, "lighting_notes": "Use diffuse, even lighting. Avoid hard shadows or direct sunlight which can obscure the color of veins and lesions.", "occlusion_notes": "The primary V-shaped lesion and associated veins must be clearly visible and not obscured by other leaves."}, "provenance": {"created_by": "VQA Dataset Designer (Plant Pathology Expert)", "reviewed_by": "VQA Dataset Designer (Plant Pathology Expert)", "created_at": "2023-10-27T11:30:00Z", "updated_at": "2023-10-27T11:30:00Z", "sources": ["University Extension Plant Disease Management Guides", "APS Compendium of Brassica Diseases", "General Plant Pathology Textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "cauliflower.disease_fungal.downy_mildew", "aliases": ["Staghead"], "crop": {"common_name": "Cauliflower", "scientific_name": "Brassica oleracea var. botrytis", "family": "Brassicaceae"}, "condition": {"common_name": "Downy mildew", "scientific_name": "Hyaloperonospora parasitica", "alt_names": ["Peronospora parasitica"], "pathogen": {"type": "disease_oomycete", "taxonomy": {"kingdom": "Stramenopila", "phylum": "Oomycota", "class": "Oomycetes", "order": "Peronosporales", "family": "Peronosporaceae", "genus": "Hyaloperonospora", "species": "parasitica"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["Wind-dispersed sporangia", "Water splash"], "overwintering": ["Oospores in soil", "Infected crop debris", "On weedy brassica hosts"]}, "environmental_risk": {"risk_factors": ["High humidity", "Cool temperatures", "Poor air circulation", "Overhead irrigation", "Crowded plantings"], "temp_c_day": [10, 16], "temp_c_night": [8, 15], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 4}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area affected with scattered, small lesions.", "moderate": "11-40% of leaf area affected; lesions are numerous and may be coalescing.", "severe": ">40% of leaf area affected; extensive necrosis, defoliation, or systemic curd infection is present.", "notes": "Severity is assessed on the most affected leaves. Presence of any systemic infection in the curd automatically classifies as severe due to marketability loss."}, "symptoms": {"leaves": ["Small, pale green to yellow, angular spots appear on the upper leaf surface.", "Lesions are often bounded by leaf veins, creating a distinct blocky or angular shape.", "A white to grayish, downy or fuzzy growth (sporangiophores) appears on the underside of leaves, directly below the upper spots.", "Lesions enlarge and turn tan, brown, or necrotic with age.", "Severely infected leaves can become brittle and may drop prematurely."], "stems": ["Systemic infection can cause purplish discoloration or dark streaks on stems and petioles."], "fruit": ["Systemic infection causes dark brown to black internal discoloration of the curd.", "Infected curds may show a fuzzy, gray mold-like growth in very humid conditions.", "The surface of the curd can develop sunken, dark spots or blemishes."], "roots": [], "whole_plant": ["Stunting may occur in young plants that are infected systemically early in development."], "signs_microscopic_or_visible": ["Visible white to grayish fuzzy mold (sporangiophores and sporangia) on the abaxial (lower) leaf surface.", "Microscopically, dichotomously branched sporangiophores with lemon-shaped sporangia are present."]}, "lookalikes": [{"condition_name": "Black rot", "condition_id": "cauliflower.disease_bacterial.black_rot", "key_differences": ["Black rot causes large, V-shaped yellow lesions starting at the leaf margin, while downy mildew spots are angular and can appear anywhere on the leaf.", "Black rot lesions feature distinct blackened veins within the yellow 'V', a symptom absent in downy mildew.", "Downy mildew produces a characteristic fuzzy, white growth on the leaf underside; black rot does not produce any visible growth."]}, {"condition_name": "Bacterial spot rot", "condition_id": "cauliflower.disease_bacterial.bacterial_spot_rot", "key_differences": ["Bacterial spots are small, dark, and water-soaked ('greasy'), often purplish-black, whereas early downy mildew spots are pale green or yellow.", "Bacterial spots can appear on both leaf surfaces and lack the white, fuzzy growth that is exclusive to the underside of leaves with downy mildew.", "Bacterial spots may develop a 'shot-hole' appearance as necrotic centers fall out, which is not typical for downy mildew."]}, {"condition_name": "Healthy", "condition_id": "cauliflower.healthy.healthy", "key_differences": ["Healthy leaves have a uniform green or blue-green color without any yellow spots, lesions, or necrosis.", "The underside of a healthy leaf is smooth and lacks any white, fuzzy, or downy growth.", "A healthy cauliflower curd is uniformly white or cream-colored, firm, and free of dark spots or internal discoloration."]}], "management": {"cultural": ["Plant resistant or tolerant cauliflower cultivars.", "Increase plant spacing to promote good air circulation and faster leaf drying.", "Avoid overhead irrigation to minimize leaf wetness; prefer drip or furrow irrigation.", "Implement a crop rotation of at least 2-3 years with non-brassica crops.", "Control weedy brassica species in and around the field.", "Incorporate crop debris after harvest to speed up decomposition of oospores."], "biological": ["Biofungicides containing strains of *Bacillus subtilis* or *Streptomyces* may provide some suppression when applied preventatively."], "chemical": ["Apply protectant fungicides (e.g., mancozeb, chlorothalonil) before disease onset in high-risk conditions.", "Use systemic fungicides (e.g., metalaxyl/mefenoxam, fosetyl-al) for curative action, following a resistance management program.", "Ensure thorough spray coverage, especially on the undersides of leaves."], "notes": "Fungicide applications are most effective when timed preventatively based on weather forecasts favoring disease development (cool, humid nights)."}, "qa_seeds": {"verification_templates": ["Is there a white or grayish fuzzy growth on the underside of the cauliflower leaf?", "Are there angular, yellow spots on the upper surface of the leaves?", "Do the leaf lesions appear to be restricted by the veins?", "Does the cauliflower curd show any dark, internal discoloration?", "Can you see pale green, blocky spots on the leaves?"], "attribute_templates": ["What color is the fuzzy growth on the leaf underside?", "What is the shape of the yellow spots on the upper leaf surface?", "On which side of the leaf is the fuzzy growth located?", "Are the veins within the yellow leaf lesions turning black?", "Describe the appearance of the spots on the curd.", "What is the texture of the growth on the bottom of the leaf?"], "diagnosis_templates": ["Based on the angular yellow spots on the top of the leaf and the white fuzz underneath, what disease is this?", "What is the likely cause of the blocky, vein-limited lesions on these cauliflower leaves?", "This cauliflower leaf has a downy growth on its lower surface. What is the diagnosis?"], "counterfactual_templates": ["If the lesions were V-shaped with black veins, what disease would it be instead of downy mildew?", "What would I see if this were bacterial spot rot instead of downy mildew?", "If the fuzzy growth was powdery and on the top of the leaf, what disease might it be?"], "severity_templates": ["What percentage of this leaf's surface is affected by lesions?", "How would you classify the severity of this downy mildew infection: mild, moderate, or severe?", "Is the infection present on the cauliflower curd?"], "confounders": ["Is this downy mildew or black rot?", "How can you differentiate downy mildew from bacterial spot rot on this leaf?", "Are these symptoms of downy mildew or just normal leaf aging?"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Diffuse, even lighting is optimal. Avoid harsh direct sunlight and deep shadows that can obscure the subtle color of early lesions or the texture of the downy growth.", "occlusion_notes": "At least one image should clearly show the underside of an affected leaf to confirm the presence/absence of the key sign (downy growth). Avoid images where symptoms are obscured by dirt, water droplets, or other leaves."}, "provenance": {"created_by": "VQA Dataset Designer (Expert Plant Pathologist)", "reviewed_by": "VQA Dataset Designer (Expert Plant Pathologist)", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University extension guides for vegetable diseases", "APS Compendium of Brassica Diseases", "General plant pathology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "cauliflower.healthy.healthy", "aliases": ["normal", "asymptomatic", "unaffected"], "crop": {"common_name": "cauliflower", "scientific_name": "Brassica oleracea var. botrytis", "family": "Brassicaceae"}, "condition": {"common_name": "Healthy", "scientific_name": null, "alt_names": ["Asymptomatic", "Normal Growth"], "pathogen": {"type": "none", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "healthy", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": [], "temp_c_day": [], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Not applicable", "moderate": "Not applicable", "severe": "Not applicable", "notes": "Severity is not applicable for a healthy plant. The plant is either healthy (asymptomatic) or it is not."}, "symptoms": {"leaves": ["Leaves are turgid, fully expanded, and uniformly green to blue-green in color.", "Leaf surfaces are free of spots, lesions, pustules, or powdery residue.", "The natural waxy (glaucous) coating on the leaves is intact and evenly distributed.", "Leaf margins are smooth and intact, without yellowing, browning, or water-soaked areas.", "No signs of yellowing (chlorosis) or browning (necrosis) are present."], "stems": ["Stems are firm, upright, and uniformly green.", "No cankers, streaks, or soft spots are visible on the main stem."], "fruit": ["The curd (head) is compact, firm, and uniformly white or cream-colored (or variety-specific color).", "Florets are tightly packed with no separation, browning, or black spots.", "No fuzzy mold growth is visible on or between the florets.", "The curd is free from a 'ricey' texture (elongated floral parts) or bracts growing through it."], "roots": [], "whole_plant": ["Plant exhibits vigorous, upright growth appropriate for its age.", "No stunting, wilting, or dieback is observed."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "black_rot", "condition_id": "cauliflower.bacterial.black_rot", "key_differences": ["Healthy leaves are uniformly green, whereas black rot causes distinct V-shaped yellow lesions starting at the leaf margin.", "Veins in healthy leaves are green; in black rot, veins within the lesion turn black.", "A healthy plant shows no systemic symptoms, while black rot can cause systemic vascular blackening visible in cut stems."]}, {"condition_name": "downy_mildew", "condition_id": "cauliflower.oomycete.downy_mildew", "key_differences": ["The underside of a healthy leaf is smooth and green; downy mildew produces a fluffy, grayish-white mold growth on the leaf underside.", "The upper surface of a healthy leaf is unblemished, whereas downy mildew causes angular, yellow to pale green spots that later turn necrotic.", "Healthy curds are clean; downy mildew can systemically infect the head, causing dark discoloration and rot."]}, {"condition_name": "bacterial_spot_rot", "condition_id": "cauliflower.bacterial.bacterial_spot_rot", "key_differences": ["Healthy curds are uniformly white and firm; bacterial spot rot causes small, water-soaked, brownish-black spots directly on the florets.", "Wrapper leaves on a healthy plant are clean, whereas bacterial spot rot can cause similar dark, greasy spots on leaves and midribs.", "A healthy curd has no off-odors; advanced bacterial rot often leads to a foul-smelling secondary soft rot."]}], "management": {"cultural": ["Use certified disease-free seed and transplants.", "Practice a 3-4 year crop rotation with non-brassica crops.", "Ensure proper plant spacing to promote air circulation and rapid leaf drying.", "Manage irrigation to avoid overhead watering and prolonged periods of leaf wetness.", "Maintain good soil drainage and fertility."], "biological": [], "chemical": [], "notes": "Management for a healthy plant focuses on preventative cultural practices that create optimal growing conditions and minimize disease pressure."}, "qa_seeds": {"verification_templates": ["Is this cauliflower plant healthy?", "Are there any signs of disease or stress on the leaves or curd?", "Does this plant appear normal and asymptomatic?", "Is this an example of a healthy cauliflower?", "Can you confirm that this plant is free from any visible symptoms?", "Is the curd of this cauliflower unblemished?"], "attribute_templates": ["What color is the curd?", "Describe the condition of the wrapper leaves.", "Are the leaves uniformly green?", "Is the head compact and firm?", "Are there any spots, lesions, or discoloration visible on any part of the plant?", "What is the overall posture of the plant?"], "diagnosis_templates": ["What condition, if any, is affecting this cauliflower?", "Is this cauliflower healthy or is it showing symptoms of a disease?", "Based on the visual evidence, what is the health status of this plant?"], "counterfactual_templates": ["If this plant had black rot, what would you expect to see on the leaf margins?", "What would be different about the curd if this plant had bacterial spot rot instead of being healthy?", "If this plant were infected with downy mildew, what would be visible on the undersides of the leaves?"], "severity_templates": ["What is the severity of the condition shown?", "How much of the plant is affected by symptoms?"], "confounders": ["Is this a healthy leaf or a leaf with very early stage black rot?", "Can you tell if this is a healthy curd or one with incipient bacterial spot rot?", "Are the leaves healthy or are they showing the first signs of downy mildew?"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Use even, diffuse lighting. Avoid harsh shadows or direct sun that can create glare or wash out colors, which might hide or mimic symptoms.", "occlusion_notes": "The main curd and several large wrapper leaves should be clearly visible and in focus. Minor occlusion from other leaves on the same plant is acceptable."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2024-05-21T10:00:00Z", "updated_at": "2024-05-21T10:00:00Z", "sources": ["General university extension guides for cauliflower production", "APS Compendium of Brassica Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "guava.disease_bacterial.canker", "aliases": ["bacterial canker of guava", "guava dieback", "bacterial blight of guava"], "crop": {"common_name": "guava", "scientific_name": "Psidium guajava", "family": "Myrtaceae"}, "condition": {"common_name": "canker", "scientific_name": "Erwinia psidii", "alt_names": ["shoot dieback", "bacterial necrosis"], "pathogen": {"type": "disease_bacterial", "taxonomy": {"kingdom": "Bacteria", "phylum": "Proteobacteria", "class": "Gammaproteobacteria", "order": "Enterobacterales", "family": "Erwiniaceae", "genus": "Erwinia", "species": "psidii"}}}, "issue_type": "disease_bacterial", "transmission": {"vectors": [], "dispersal": ["wind-driven rain", "water splash", "contaminated pruning tools", "infected nursery stock"], "overwintering": ["in infected stems and cankers", "in plant debris on the ground"]}, "environmental_risk": {"risk_factors": ["prolonged periods of high humidity", "frequent rainfall", "warm temperatures", "dense canopy with poor air circulation", "wounds from pruning, insects, or mechanical damage"], "temp_c_day": [25, 30], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 6}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "< 5% of leaf, twig, or fruit surface area affected with lesions. No significant dieback.", "moderate": "5-25% of surface area affected; multiple cankers may be present, with some twig dieback visible.", "severe": "> 25% of surface area affected; extensive cankers causing girdling, significant branch dieback, and severe fruit rot.", "notes": "Severity is assessed based on the percentage of symptomatic tissue on the most affected plant part visible. For whole-plant views, consider the overall proportion of the canopy showing symptoms like dieback."}, "symptoms": {"leaves": ["Initial small, water-soaked, circular spots.", "Lesions enlarge, turning dark brown to black, often surrounded by a distinct yellow halo.", "Lesion centers may dry, crack, and fall out, creating a 'shot-hole' appearance.", "Infected young leaves can become distorted, twisted, or malformed."], "stems": ["Formation of elongated, sunken, dark brown or black cankers on twigs and young branches.", "Bark over cankers may crack, split, or peel.", "Girdling of stems by cankers leads to wilting and dieback of the shoot tip and branches above the infection.", "In high humidity, creamy or whitish bacterial ooze may exude from active cankers."], "fruit": ["Small, circular, water-soaked spots appear on the fruit surface.", "Spots enlarge, becoming sunken, hard, and dark brown to black, often with a raised margin.", "Lesions can crack open, allowing entry for secondary rot organisms."], "roots": [], "whole_plant": ["Wilting and death of affected shoots and branches.", "Reduced plant vigor and poor fruit development."], "signs_microscopic_or_visible": ["Bacterial ooze from cankers under wet conditions."]}, "lookalikes": [{"condition_name": "leaf_spot", "condition_id": "guava.disease_fungal.leaf_spot", "key_differences": ["Canker produces sunken, woody cankers on stems and twigs, a symptom absent in most leaf spot diseases.", "Bacterial canker leaf lesions are often initially water-soaked with prominent yellow halos; fungal leaf spots may have a more defined, less water-soaked border and sometimes a grayish center.", "Fruit lesions from canker are characteristically hard and sunken, while fungal spots on fruit may be more superficial or lead to soft rot."]}, {"condition_name": "rust", "condition_id": "guava.disease_fungal.rust", "key_differences": ["Rust appears as raised, powdery pustules that release yellow-orange spores, typically on the leaf underside.", "Canker causes flat or sunken necrotic spots that are not powdery.", "Rust does not form cankers on woody stems; its primary damage is defoliation."]}, {"condition_name": "nutritional_deficiency", "condition_id": "guava.disorder_abiotic.nutritional_deficiency", "key_differences": ["Deficiencies cause generalized, often symmetrical patterns of discoloration (e.g., interveinal chlorosis, marginal yellowing), not discrete necrotic spots.", "Canker lesions are localized areas of dead tissue with distinct borders.", "Nutritional issues do not cause sunken cankers on stems or water-soaked lesions on any plant part."]}], "management": {"cultural": ["Use certified disease-free planting material.", "Prune and destroy infected branches and cankers during dry periods to reduce inoculum.", "Improve air circulation within the canopy through selective pruning.", "Avoid overhead irrigation that wets foliage for extended periods.", "Disinfect pruning tools (e.g., with 10% bleach solution) between cuts."], "biological": ["Formulations containing *Bacillus subtilis* or other beneficial microbes may act as antagonists."], "chemical": ["Preventative applications of copper-based bactericides (e.g., copper hydroxide, copper oxychloride) prior to and during rainy seasons.", "Consult local extension services for recommended and legally registered products and spray schedules."], "notes": "An integrated approach combining sanitation (pruning) with preventative chemical sprays is most effective for managing guava canker."}, "qa_seeds": {"verification_templates": ["Is there a sunken, dark lesion on a stem or twig?", "Are there dark, circular spots on the leaves surrounded by a yellow halo?", "Does the fruit have hard, sunken, dark-colored spots?", "Is there evidence of a branch wilting or dying back?", "Do the leaf spots appear water-soaked?", "Can you see any cracking bark associated with a lesion on a branch?"], "attribute_templates": ["What color is the border of the leaf spot?", "Describe the texture of the lesion on the stem.", "Are the centers of the leaf spots intact or have they fallen out?", "Where on the plant are the symptoms most severe?", "Is the lesion on the fruit raised, flat, or sunken?", "How would you describe the shape of the canker on the stem?"], "diagnosis_templates": ["Given the sunken cankers on the stems and haloed spots on the leaves, what is the likely disease?", "What disease causes shot-hole symptoms on leaves and hard, sunken spots on guava fruit?", "A guava branch is wilting and has a dark, cracked lesion at its base. What is the diagnosis?"], "counterfactual_templates": ["If the spots on the leaves were powdery and orange, what would the condition be?", "What would you expect to see if this were a nutritional deficiency instead of a bacterial disease?", "If the symptoms were only on the leaves and appeared as a white, powdery coating, what would be the likely issue?"], "severity_templates": ["What percentage of this leaf's surface is affected by lesions?", "Based on the amount of twig dieback, would you classify this canker infection as mild, moderate, or severe?", "How severe is the canker damage on the visible fruit?"], "confounders": ["leaf_spot", "rust", "nutritional_deficiency"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse lighting is crucial. Avoid harsh shadows or overexposure that can wash out key details like yellow halos or the water-soaked appearance of lesions.", "occlusion_notes": "The primary symptom (e.g., a canker on a stem, spots on a leaf) should be clearly visible and not obscured by other plant parts. Multiple images showing different affected parts (leaf, stem, fruit) are highly valuable."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T11:30:00Z", "updated_at": "2023-10-27T11:30:00Z", "sources": ["CABI Compendium", "APS Compendium of Tropical Fruit Diseases", "University Extension Plant Disease Guides", "Peer-reviewed plant pathology journals"]}}
+{"schema_version": "1.0.0", "disease_id": "guava.unknown.curling", "aliases": ["Guava leaf curl", "Leaf distortion", "Crinkling"], "crop": {"common_name": "Guava", "scientific_name": "Psidium guajava", "family": "Myrtaceae"}, "condition": {"common_name": "Leaf Curling", "scientific_name": "", "alt_names": ["Leaf distortion", "Crinkling"], "pathogen": {"type": "unknown", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "unknown", "transmission": {"vectors": ["Aphids", "Thrips", "Whiteflies"], "dispersal": ["Wind", "Insect movement", "Contaminated tools"], "overwintering": ["In plant debris", "On alternate hosts", "As eggs on bark"]}, "environmental_risk": {"risk_factors": ["Warm, dry weather which favors sucking pest populations", "Presence of vector populations (e.g., aphids, thrips)", "New, tender growth flushes are highly susceptible", "Poor air circulation around plants"], "temp_c_day": [20, 30], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "A few isolated leaves or a single shoot tip shows curling.", "moderate": "Multiple shoots show curling, with up to 30% of the plant's new growth affected.", "severe": "Widespread curling across most new growth, leading to stunted shoots and reduced plant vigor.", "notes": "Severity is assessed by the proportion of young shoots and leaves exhibiting curling and distortion symptoms. The presence of sooty mold can indicate a longer-term, more severe issue."}, "symptoms": {"leaves": ["Leaves curl downwards or upwards along the margins.", "Affected leaves appear twisted, crinkled, or generally distorted.", "Young, tender leaves on new shoots are the most commonly affected.", "Leaf surface may appear bumpy or blistered.", "Chlorosis (yellowing) may accompany the curling, especially on leaf edges.", "In cases caused by sucking pests, a sticky honeydew may be present on leaf surfaces.", "Black, sooty mold may grow on the honeydew, coating the leaves."], "stems": ["Shoot tips and young stems may be stunted or malformed.", "Internodes on affected shoots may be shortened, giving a bushy or 'rosette' appearance."], "fruit": ["Severe infestations during flowering may lead to poor fruit set.", "Fruit development can be hindered if the plant's vigor is significantly reduced."], "roots": [], "whole_plant": ["Overall plant growth is stunted and lacks vigor in severe cases."], "signs_microscopic_or_visible": ["Small insects (e.g., green or black aphids, tiny thrips) may be visible on the underside of curled leaves.", "Cast skins from molting insects might be visible."]}, "lookalikes": [{"condition_name": "Nutritional Deficiency", "condition_id": "guava.abiotic.nutritional_deficiency", "key_differences": ["Deficiencies often cause distinct, symmetrical chlorosis patterns (e.g., interveinal), whereas curling may be more random.", "Curling from deficiency (e.g., calcium) is often rigid and brittle, while pest-induced curling can be more pliable.", "Pests, honeydew, or sooty mold are absent in cases of nutritional deficiency."]}, {"condition_name": "Powdery Mildew", "condition_id": "guava.fungal.powdery_mildew", "key_differences": ["Powdery mildew is defined by a characteristic white, powdery fungal growth on leaf surfaces, which is the primary sign.", "While severe mildew can cause some leaf distortion, it does not typically cause tight curling like sucking pests do.", "The white fungal patches of powdery mildew can be wiped off, unlike symptoms of curling."]}, {"condition_name": "Healthy", "condition_id": "guava.healthy.none", "key_differences": ["Healthy leaves are flat, fully expanded, and have a uniform green color without distortion.", "Healthy leaves lack any form of curling, crinkling, or discoloration.", "Healthy shoots exhibit normal elongation with typical internode spacing."]}], "management": {"cultural": ["Prune and destroy affected plant parts to remove pest populations.", "Monitor plants regularly, especially new growth, for early signs of pests.", "Avoid excessive nitrogen fertilization which promotes lush growth that is attractive to sucking pests.", "Use a strong jet of water to dislodge pests like aphids from leaves."], "biological": ["Introduce or conserve natural enemies such as ladybugs, lacewings, and parasitic wasps."], "chemical": ["Apply insecticidal soaps or horticultural oils, ensuring thorough coverage of the undersides of leaves.", "For severe infestations, consider using systemic insecticides, following all label instructions and pre-harvest intervals."], "notes": "The primary cause of leaf curling in guava is often sucking pests. Accurate identification of the pest is key to selecting the most effective management strategy."}, "qa_seeds": {"verification_templates": ["Does this image show leaves that are curled or twisted?", "Is there evidence of leaf distortion on the guava plant?", "Are the leaf margins rolled either upwards or downwards?", "Can you see any crinkling on the leaf surfaces?", "Is the new growth on this plant malformed?", "Are the leaves on this guava shoot misshapen?"], "attribute_templates": ["What is the direction of the leaf curl, upward or downward?", "Are the curled leaves also yellow or discolored?", "Is there any sticky substance or black sooty mold visible on the distorted leaves?", "Which part of the plant is most affected by the curling, new or old growth?", "Describe the shape of the leaves on the affected shoot tip.", "Are there any insects visible on the underside of the curled leaves?"], "diagnosis_templates": ["What condition is causing the leaves to curl and become distorted?", "Based on the stunted and crinkled leaves, what is wrong with this guava plant?", "Is the plant healthy or is it showing symptoms of leaf curling?"], "counterfactual_templates": ["If the leaves were flat and uniformly green, would the plant be considered healthy?", "What would this leaf look like if it were not affected by curling?"], "severity_templates": ["How severe is the leaf curling on this branch?", "Based on the number of affected shoots, would you classify this as a mild, moderate, or severe case of curling?", "What proportion of the foliage in the image appears curled?"], "confounders": ["nutritional_deficiency", "powdery_mildew"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse lighting is preferred. Avoid harsh shadows or direct sunlight that can obscure leaf texture, color, and the presence of small pests.", "occlusion_notes": "The curled leaves should be clearly visible and not heavily occluded by other leaves or branches. A view of the shoot tip is often most informative."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["General university extension guides for guava pest management", "APS Compendium of Tropical Fruit Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "guava.healthy.healthy", "aliases": ["Normal", "Asymptomatic", "Undiseased"], "crop": {"common_name": "Guava", "scientific_name": "Psidium guajava", "family": "Myrtaceae"}, "condition": {"common_name": "Healthy", "scientific_name": null, "alt_names": ["Normal", "Asymptomatic"], "pathogen": {"type": "abiotic", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "healthy", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Optimal sunlight exposure (6-8 hours/day)", "Well-drained soil with appropriate pH (5.5-7.0)", "Adequate plant spacing promoting good air circulation", "Balanced nutrition and consistent moisture"], "temp_c_day": [23, 28], "temp_c_night": [15, 20], "relative_humidity_pct": [60, 80], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "N/A", "moderate": "N/A", "severe": "N/A", "notes": "For a healthy plant, severity is not applicable. The plant exhibits 0% symptoms of disease or stress. Any deviation from the 'healthy' description would be classified under a specific condition."}, "symptoms": {"leaves": ["Uniformly green color, ranging from light green on new growth to dark green on mature leaves.", "Smooth, often glossy or waxy surface texture.", "Leaves are fully expanded, turgid, and appropriately sized.", "Complete absence of spots, lesions, pustules, or powdery growth.", "Leaf margins are entire and without necrosis, yellowing, or curling.", "Veins are a similar or slightly lighter green than the leaf blade without discoloration."], "stems": ["Stems and branches are firm, strong, and support the plant structure.", "Bark on young shoots is typically smooth and greenish-brown, while older stems may have peeling, mottled bark.", "Absence of cankers, galls, cracks, or unusual exudates."], "fruit": ["Fruit skin is smooth and evenly colored for its stage of development (e.g., uniform green when immature, turning yellow or pink when ripe).", "Absence of blemishes, sunken lesions, cracks, or signs of rot.", "Fruit is well-formed and firm to the touch."], "roots": [], "whole_plant": ["Exhibits vigorous, upright growth with a dense, full canopy.", "Produces new flushes of growth, flowers, and fruit according to the season."], "signs_microscopic_or_visible": ["Absence of any visible signs of pathogens, such as fungal mycelium, spores, pustules, or bacterial ooze."]}, "lookalikes": [{"condition_name": "Nutritional Deficiency", "condition_id": "guava.abiotic.nutritional_deficiency", "key_differences": ["Healthy leaves have uniform green color, whereas deficient leaves show patterned chlorosis (yellowing), such as interveinal, marginal, or on new/old growth.", "Healthy leaves are flat and well-formed, while certain deficiencies (e.g., calcium, boron) can cause distorted, curled, or stunted leaf growth.", "Healthy plant growth is vigorous; deficiencies often result in reduced vigor and smaller leaves."]}, {"condition_name": "Powdery Mildew", "condition_id": "guava.fungal.powdery_mildew", "key_differences": ["Healthy leaves have a clean, often glossy surface, while infected leaves are coated with a distinct white to grayish, powdery fungal growth.", "The texture of a healthy leaf is smooth; powdery mildew creates a dusty or felt-like coating that can be rubbed off.", "Underlying tissue of a healthy leaf is green, whereas areas covered by mildew may eventually turn yellow or necrotic."]}, {"condition_name": "Rust", "condition_id": "guava.fungal.rust", "key_differences": ["Healthy leaves have a smooth, unbroken surface, while rust-infected leaves feature small, raised pustules.", "Rust pustules are typically bright orange, yellow, or reddish-brown, colors which are absent on healthy leaves.", "The underside of a healthy leaf is clean, whereas rust pustules are often more numerous and prominent on the leaf underside."]}], "management": {"cultural": ["Maintain a balanced fertilization program based on soil and tissue analysis.", "Ensure proper irrigation, avoiding both drought stress and waterlogged conditions.", "Prune annually to remove dead or crossing branches and improve air circulation within the canopy.", "Select planting sites with full sun exposure and well-drained soil."], "biological": [], "chemical": [], "notes": "Management for a healthy plant involves proactive cultural practices to provide optimal growing conditions and minimize plant stress, which is the best defense against pests and diseases."}, "qa_seeds": {"verification_templates": ["Is this guava plant healthy?", "Does this leaf show any signs of disease or stress?", "Are there any symptoms visible on the plant?", "Can you confirm the plant is asymptomatic?", "Is the foliage free from spots, lesions, or discoloration?", "Does the fruit appear normal and undamaged?"], "attribute_templates": ["What is the color of the leaves?", "Describe the surface of the leaf.", "Are the leaf margins intact?", "Is there any powdery substance on the leaves?", "Are the stems free of cankers or galls?", "Describe the overall appearance of the plant.", "What color is the fruit skin?"], "diagnosis_templates": ["What is the condition of this guava plant?", "Based on the uniform green color and lack of symptoms, what is the plant's health status?", "Why would you classify this plant as healthy?"], "counterfactual_templates": ["If the leaves had yellow spots between the veins, would the plant still be healthy?", "What would you see on the leaves if this plant had rust instead of being healthy?", "If there was a white powder on the leaf surface, what condition might it be?"], "severity_templates": ["What is the severity level of symptoms on this plant?", "What percentage of the plant is affected by disease?", "Are there any symptoms present to assess for severity?"], "confounders": ["How can you differentiate a healthy, glossy leaf from one with early-stage powdery mildew?", "Is this a healthy plant or is it showing very subtle signs of a nitrogen deficiency?", "Are the tiny specks on the leaf dust, or could they be the very first sign of rust pustules?"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Use even, diffuse lighting. Avoid direct, harsh sunlight that creates hard shadows or specular highlights which can obscure true leaf color and texture.", "occlusion_notes": "The leaf or plant part in question should be largely unoccluded. Minor overlap with other plant parts is acceptable if key features remain visible."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Plant Pathologist", "created_at": "2024-05-21T10:00:00Z", "updated_at": "2024-05-21T10:00:00Z", "sources": ["General university extension guides for guava production", "APS Compendium of Tropical Fruit Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "guava.disease_fungal.leaf_spot", "aliases": ["Cercospora leaf spot of guava", "Pestalotiopsis leaf spot", "guava scab"], "crop": {"common_name": "guava", "scientific_name": "Psidium guajava", "family": "Myrtaceae"}, "condition": {"common_name": "leaf spot", "scientific_name": "Cercospora psidii, Pestalotiopsis spp., Pseudocercospora psidii", "alt_names": ["Fungal leaf spot"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Capnodiales", "family": "Mycosphaerellaceae", "genus": "Cercospora", "species": "psidii"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": ["wind", "rain splash", "irrigation water", "contaminated tools"], "dispersal": ["conidia (asexual spores)"], "overwintering": ["infected plant debris on the ground", "dormant mycelium in lesions on living leaves and twigs"]}, "environmental_risk": {"risk_factors": ["high humidity", "prolonged leaf wetness", "warm temperatures", "dense canopy with poor air circulation", "frequent rainfall or overhead irrigation"], "temp_c_day": [24, 30], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 8}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "< 5% of leaf area affected with spots.", "moderate": "5-25% of leaf area affected, some leaf yellowing (chlorosis) may be present.", "severe": "> 25% of leaf area affected, significant chlorosis, coalescence of spots, and premature leaf drop (defoliation).", "notes": "Severity is estimated as the average percentage of symptomatic tissue across the visible leaves. High severity can lead to a 'shot-hole' effect where lesion centers dry and fall out."}, "symptoms": {"leaves": ["Small, circular to irregular spots, initially appearing water-soaked or yellowish.", "Spots enlarge over time, typically 3-10 mm in diameter.", "Mature spots develop a distinct grayish-white or tan center.", "A dark brown, reddish, or purplish border surrounds the lighter center.", "Multiple spots may merge (coalesce) to form large, irregular necrotic blotches.", "In some cases, the necrotic center of the spot falls out, creating a 'shot-hole' appearance.", "A yellow halo may form around the lesions.", "Severe infections lead to widespread yellowing and premature leaf fall."], "stems": ["Small, slightly sunken, dark lesions may appear on young, green stems and petioles."], "fruit": ["Small, circular, sunken, dark brown to black spots can develop on the fruit surface, reducing marketability.", "Fruit lesions may develop cracks, allowing secondary infections."], "roots": [], "whole_plant": ["Reduced plant vigor due to defoliation.", "Thinning of the canopy in cases of chronic, severe infection."], "signs_microscopic_or_visible": ["Under high humidity, fuzzy sporulation may be visible in the center of lesions.", "Under magnification, tiny black dots (fruiting bodies like acervuli or pycnidia) can be seen within the lesions."]}, "lookalikes": [{"condition_name": "rust", "condition_id": "guava.disease_fungal.rust", "key_differences": ["Rust produces distinctly raised, powdery pustules, typically orange to reddish-brown, that rupture to release spores.", "Leaf spot lesions are flat or slightly sunken, not raised or powdery.", "Rust pustules lack the characteristic pale center and dark border seen in many fungal leaf spots."]}, {"condition_name": "nutritional deficiency", "condition_id": "guava.nutritional_deficiency", "key_differences": ["Deficiency symptoms like yellowing (chlorosis) are often symmetrical and follow leaf vein patterns (e.g., interveinal chlorosis).", "Leaf spots are discrete, randomly scattered, and have defined borders, unlike the diffuse patterns of deficiencies.", "Nutritional issues typically affect new or old growth uniformly, whereas leaf spots appear based on infection events."]}, {"condition_name": "canker", "condition_id": "guava.disease_fungal.canker", "key_differences": ["Cankers are primarily sunken, dead, or cracked areas on woody stems and branches, not discrete spots on leaf blades.", "While some canker pathogens can cause leaf symptoms, the primary damage is on woody tissue, often leading to branch dieback.", "Leaf spots are numerous and scattered across the leaf surface, whereas canker-related leaf yellowing might be localized to a single affected branch."]}], "management": {"cultural": ["Prune to improve air circulation and sunlight penetration within the canopy.", "Remove and destroy fallen leaves and infected plant debris to reduce inoculum.", "Avoid overhead irrigation to minimize leaf wetness duration.", "Maintain proper plant nutrition to improve vigor and disease tolerance."], "biological": ["Application of bio-fungicides based on *Bacillus subtilis* or *Trichoderma* species may help suppress the pathogen."], "chemical": ["Application of protective or systemic fungicides, such as copper-based compounds, mancozeb, or strobilurins.", "Fungicide application should be timed before or during periods of high risk (warm, wet weather)."], "notes": "An integrated pest management (IPM) approach combining cultural, biological, and chemical methods is most effective. Rotate fungicide classes to prevent resistance."}, "qa_seeds": {"verification_templates": ["Does this guava leaf have spots?", "Is there any discoloration on the leaf surface?", "Can you see any lesions on this leaf?", "Is there evidence of a disease on the leaf?", "Are there circular marks on the leaf?"], "attribute_templates": ["What color is the center of the spot?", "Is there a dark border around the lesion?", "Do the spots have a 'shot-hole' appearance?", "Are the spots merging together?", "Is there a yellow halo around the spots?", "Describe the shape of the lesions on the leaf."], "diagnosis_templates": ["What disease causes these tan-centered spots with purple borders on guava leaves?", "Is this guava plant affected by fungal leaf spot?", "What is the most likely cause of these numerous, circular lesions?", "Can you identify the disease on this guava leaf?"], "counterfactual_templates": ["If the spots were raised, orange, and powdery, what disease would it be?", "If the leaf was covered in a white, dusty substance, what would be the issue?", "If the yellowing followed the leaf veins perfectly, what would be the likely cause?"], "severity_templates": ["What percentage of this leaf's area is affected by spots?", "How severe is the leaf spot infection?", "Would you describe this case as mild, moderate, or severe?"], "confounders": ["rust", "nutritional_deficiency"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Diffuse, even lighting is ideal. Avoid harsh shadows or direct sunlight that can overexpose lesion centers or obscure border colors.", "occlusion_notes": "The majority of a representative symptomatic leaf should be visible. Key features like lesion centers and borders should not be obscured by other leaves, water droplets, or debris."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Plant Pathologist", "created_at": "2024-05-21T10:00:00Z", "updated_at": "2024-05-21T10:00:00Z", "sources": ["University extension guides on tropical fruit diseases", "APS Compendium of Tropical Fruit Diseases", "Peer-reviewed plant pathology journals"]}}
+{"schema_version": "1.0.0", "disease_id": "guava.nutrient_deficiency.nutritional_deficiency", "aliases": ["guava chlorosis", "guava mineral deficiency", "guava nutrient imbalance"], "crop": {"common_name": "guava", "scientific_name": "Psidium guajava", "family": "Myrtaceae"}, "condition": {"common_name": "Nutritional Deficiency", "scientific_name": null, "alt_names": ["Mineral deficiency", "Nutrient imbalance"], "pathogen": {"type": "abiotic", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "nutrient_deficiency", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Poor soil fertility or sandy soils prone to leaching", "Improper soil pH (too acidic or alkaline), which locks up nutrients", "Waterlogged soil or drought conditions impairing root function", "Competition for nutrients from weeds", "Heavy rainfall or over-irrigation leading to nutrient leaching"], "temp_c_day": [], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area on a few leaves shows discoloration (e.g., chlorosis). Plant vigor is largely unaffected.", "moderate": "11-40% of leaf area on multiple leaves is affected. Some marginal necrosis or stunting may be visible.", "severe": ">40% of leaf area is affected across the plant canopy. Significant necrosis, premature leaf drop, and severe stunting are evident.", "notes": "Severity is assessed by the percentage of a symptomatic leaf's surface area showing chlorosis or necrosis, and the extent of symptoms across the whole plant."}, "symptoms": {"leaves": ["Uniform pale green or yellowing (chlorosis) of older, lower leaves, indicating mobile nutrient deficiency (e.g., Nitrogen).", "Interveinal chlorosis (yellowing between green veins) on younger, upper leaves, indicating immobile nutrient deficiency (e.g., Iron, Zinc).", "Yellowing, browning, or scorching along the margins and tips of older leaves (e.g., Potassium deficiency).", "Leaves may develop a purplish or reddish cast, especially on older leaves under cool conditions (e.g., Phosphorus deficiency).", "A distinct 'V' shaped yellowing pattern starting from the tip of older leaves (e.g., Magnesium deficiency).", "New leaves are abnormally small (little leaf) and internodes are short, giving a rosetted appearance (e.g., Zinc deficiency).", "In severe cases, affected leaf areas become brown, dry, and dead (necrotic).", "Premature dropping of affected leaves."], "stems": ["Stems may be thin, weak, and spindly.", "Reduced internode length, leading to a compacted or 'rosetted' growth habit."], "fruit": ["Reduced fruit set, size, and overall yield.", "Poor fruit quality, including color, firmness, and flavor.", "Fruit may exhibit deformities or cracking."], "roots": [], "whole_plant": ["Overall stunted growth and reduced plant vigor."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "Leaf Spot", "condition_id": "guava.fungal.leaf_spot", "key_differences": ["Leaf spots are discrete, often circular lesions with defined borders, whereas deficiency symptoms are diffuse patterns like interveinal or marginal chlorosis.", "Leaf spots may have a necrotic tan center with a dark or colored halo, a feature absent in nutritional deficiencies.", "Deficiency symptoms often appear symmetrically on the leaf blade, while fungal spots are typically distributed randomly.", "Fungal spots may contain tiny black dots (pycnidia or acervuli) in the lesion center, which are fungal signs not present in deficiencies."]}, {"condition_name": "Rust", "condition_id": "guava.fungal.rust", "key_differences": ["Rust appears as raised, powdery pustules (uredinia) that are orange to reddish-brown, not flat areas of yellowing (chlorosis).", "Rubbing a rust pustule will leave a colored, powder-like residue on a surface, which does not happen with deficiency symptoms.", "Rust lesions are distinct pustules, often on the underside of the leaf, contrasting with the broad, patterned discoloration of deficiencies."]}], "management": {"cultural": ["Conduct regular soil and leaf tissue analysis to accurately diagnose specific nutrient deficiencies.", "Maintain soil pH in the optimal range for guava (5.5-7.0) to maximize nutrient availability.", "Apply balanced fertilizers based on soil test recommendations.", "Incorporate compost or other organic matter to improve soil health and nutrient retention.", "Ensure proper irrigation management to avoid waterlogging and drought stress, both of which hinder nutrient uptake."], "biological": ["Promote healthy soil microbial populations through organic matter amendment, which can aid in nutrient cycling."], "chemical": ["Apply specific fertilizers to correct identified deficiencies (e.g., urea for nitrogen, potassium sulfate for potassium).", "Use foliar sprays of chelated micronutrients (e.g., iron, zinc, manganese) for rapid but temporary correction of deficiencies in new growth.", "Adjust soil pH using lime (to raise pH) or sulfur (to lower pH) as needed based on soil tests."], "notes": "Accurate diagnosis through laboratory testing is critical before applying chemical treatments to avoid creating further nutrient imbalances."}, "qa_seeds": {"verification_templates": ["Is the yellowing occurring between the veins while the veins stay green?", "Are the oldest leaves at the bottom of the plant turning uniformly yellow?", "Do you see browning or scorching concentrated on the tips and edges of the leaves?", "Are the newest leaves at the top of the plant the ones that look pale or yellow?", "Does the plant as a whole appear stunted, with unusually small leaves?", "Is the discoloration on the leaf a flat yellowing, or is it a raised, powdery spot?"], "attribute_templates": ["Which part of the plant is showing symptoms: new leaves, old leaves, or the whole plant?", "Describe the pattern of yellowing on the leaf surface.", "What color are the veins of the affected leaf?", "Are the leaves misshapen, curled, or smaller than normal?", "Is there any dead, brown tissue on the leaves, and if so, where is it located?"], "diagnosis_templates": ["What kind of nutrient deficiency causes interveinal chlorosis on new leaves?", "Based on the uniform yellowing of older leaves, could this be a nitrogen deficiency?", "Is this plant showing symptoms of a nutrient deficiency?", "Could the scorched leaf margins be a sign of potassium deficiency?"], "counterfactual_templates": ["If this were guava rust, what would be different about the spots on the leaves?", "What would a healthy guava leaf look like compared to this one?", "If this were a fungal leaf spot disease, how would the pattern of discoloration differ from what is shown?"], "severity_templates": ["What percentage of this leaf's surface is yellow or brown?", "How would you rate the severity of this nutritional deficiency: mild, moderate, or severe?", "Considering the number of affected leaves and stunted growth, is this a severe condition?"], "confounders": ["leaf_spot", "rust", "herbicide_damage"]}, "data_requirements": {"min_resolution_px": 1024, "min_roi_fraction": 0.4, "lighting_notes": "Use diffuse, even lighting. Avoid hard shadows and direct, overexposing sunlight which can obscure the subtle color differences of chlorosis.", "occlusion_notes": "Symptomatic leaves should be clearly visible and not obscured by other plant parts. If possible, capture the symptom's location on the plant (e.g., upper vs. lower leaves)."}, "provenance": {"created_by": "VQA Dataset Designer (Plant Pathology Expert)", "reviewed_by": "VQA Dataset Designer (Plant Pathology Expert)", "created_at": "2023-11-14T11:00:00Z", "updated_at": "2023-11-14T11:00:00Z", "sources": ["University extension publications on tropical fruit nutrition", "APS Compendium of Tropical Fruit Diseases", "General plant pathology and soil science textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "guava.disease_fungal.powdery_mildew", "aliases": ["guava powdery mildew"], "crop": {"common_name": "guava", "scientific_name": "Psidium guajava", "family": "Myrtaceae"}, "condition": {"common_name": "powdery mildew", "scientific_name": "Oidium psidii", "alt_names": ["white mildew"], "pathogen": {"type": "fungus", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Leotiomycetes", "order": "Erysiphales", "family": "Erysiphaceae", "genus": "Oidium", "species": "psidii"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["windborne conidia"], "overwintering": ["mycelium on infected plant debris", "dormant buds"]}, "environmental_risk": {"risk_factors": ["high relative humidity", "moderate temperatures", "poor air circulation", "shady conditions"], "temp_c_day": [20, 28], "temp_c_night": [15, 22], "relative_humidity_pct": [80, 95], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "< 10% of leaf surface covered with white mycelial growth.", "moderate": "10-40% of leaf surface covered; some leaf distortion or yellowing may be present.", "severe": "> 40% of leaf surface covered; significant leaf yellowing, curling, and premature defoliation.", "notes": "Severity is assessed on the most affected leaves. Focus on the upper leaf surface where symptoms are most prominent. The white growth is the key indicator."}, "symptoms": {"leaves": ["White to grayish, powdery patches appear on the upper leaf surface.", "Powdery growth can also develop on the lower leaf surface.", "Infected young leaves may become twisted, curled, or distorted.", "Lesions enlarge and merge, potentially covering the entire leaf surface.", "Underlying leaf tissue may turn yellow (chlorotic) or, less commonly, brown.", "Severe infections can lead to premature leaf drop."], "stems": ["White, dusty growth can colonize young, green shoots and petioles."], "fruit": ["White powdery patches may develop on the surface of young fruit.", "Infected fruit skin can become discolored, russeted, or cracked.", "Severe infection may cause fruit malformation or premature drop."], "roots": [], "whole_plant": ["Reduced plant vigor and stunted growth in severe, systemic infections."], "signs_microscopic_or_visible": ["The white, powdery growth is the fungal mycelium and its spores (conidia), which can be easily rubbed off the plant surface."]}, "lookalikes": [{"condition_name": "nutritional deficiency", "condition_id": "guava.abiotic.nutritional_deficiency", "key_differences": ["Deficiencies cause discoloration (e.g., yellowing) integral to the leaf tissue, lacking any superficial, rub-off growth.", "Powdery mildew appears as distinct white/gray patches on the leaf surface, which is not a symptom of nutrient issues.", "Nutrient deficiency patterns are often systematic (e.g., interveinal chlorosis, affecting new vs. old leaves), while mildew patches are more randomly distributed."]}, {"condition_name": "rust", "condition_id": "guava.disease_fungal.rust", "key_differences": ["Rust produces raised pustules that are typically orange, reddish-brown, or yellow, not white or gray.", "When rubbed, rust pustules release a colored powder (spores), whereas powdery mildew releases a white powder.", "Rust symptoms often start as small, colored spots on the underside of leaves, while powdery mildew is frequently more prominent on the upper surface as a diffuse patch."]}], "management": {"cultural": ["Prune to improve air circulation and sunlight penetration within the canopy.", "Remove and destroy heavily infected leaves, shoots, and fruit to reduce inoculum.", "Avoid overhead irrigation, which can increase humidity.", "Ensure proper plant spacing to promote airflow."], "biological": ["Application of bio-fungicides containing beneficial microbes like *Bacillus subtilis* or *Ampelomyces quisqualis*."], "chemical": ["Application of horticultural oils or neem oil in early stages.", "Use of fungicides such as sulfur, potassium bicarbonate, or synthetic fungicides (e.g., myclobutanil, propiconazole)."], "notes": "Start fungicide applications at the first sign of disease. Rotate fungicide classes to manage resistance. Always follow label instructions for application rates and timing."}, "qa_seeds": {"verification_templates": ["Is there a white, powdery substance on the leaf?", "Can the white growth on the leaf be rubbed off?", "Does the image show white or grayish patches on the guava leaves or stems?", "Are the young leaves with the white coating also twisted or curled?", "Is a dusty, white material visible on the upper surface of the leaf?"], "attribute_templates": ["What color is the powdery growth on the leaves?", "Describe the texture of the growth on the leaf surface.", "Which parts of the plant are covered in the white substance?", "Are the affected leaves also showing signs of yellowing or distortion?", "How is the white growth distributed on the leaf: in patches or covering the whole surface?"], "diagnosis_templates": ["What disease causes a white, powdery, rub-off growth on guava leaves?", "Based on the symptoms, is this plant infected with powdery mildew?", "What is the likely cause of the dusty white coating on the guava plant?"], "counterfactual_templates": ["If the spots were orange and raised instead of white and flat, what disease might it be?", "What would the leaf look like if it were just a nutrient deficiency and not a fungal disease?", "If the white spots could not be rubbed off, what else could it be?"], "severity_templates": ["What percentage of the leaf area is covered by the white mildew?", "How severe is the powdery mildew infection shown in the image?", "Would you classify this infection as mild, moderate, or severe?"], "confounders": ["nutritional_deficiency", "rust"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Diffuse, even lighting is ideal. Avoid harsh shadows or overexposure, which can obscure the white, powdery texture of the mildew.", "occlusion_notes": "The affected leaf or fruit surface should be clearly visible and not significantly blocked by other plant parts."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2024-05-21T10:00:00Z", "updated_at": "2024-05-21T10:00:00Z", "sources": ["University extension plant pathology guides", "APS Compendium of Tropical Fruit Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "guava.disease_fungal.rust", "aliases": ["myrtle rust", "eucalyptus rust"], "crop": {"common_name": "guava", "scientific_name": "Psidium guajava", "family": "Myrtaceae"}, "condition": {"common_name": "rust", "scientific_name": "Austropuccinia psidii", "alt_names": ["Puccinia psidii"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Basidiomycota", "class": "Pucciniomycetes", "order": "Pucciniales", "family": "Sphaerophragmiaceae", "genus": "Austropuccinia", "species": "psidii"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["wind-borne spores", "water splash", "contaminated tools", "movement of infected plant material"], "overwintering": ["on infected leaves and stems in mild climates", "on alternate hosts within the Myrtaceae family"]}, "environmental_risk": {"risk_factors": ["high humidity", "prolonged leaf wetness", "presence of young, susceptible tissue (new growth)", "poor air circulation"], "temp_c_day": [15, 25], "temp_c_night": [10, 20], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 6}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area affected with visible pustules. Little to no leaf distortion.", "moderate": "11-30% of leaf area affected. Some leaf curling, distortion, or minor premature leaf drop may be present.", "severe": ">30% of leaf area affected. Significant leaf distortion, shoot dieback, and/or widespread defoliation.", "notes": "Severity is measured as the percentage of total leaf surface area on the plant (or in the image frame) covered by active, sporulating pustules. Also consider impact on new growth and fruit."}, "symptoms": {"leaves": ["Initial small, chlorotic (yellow) flecks on upper and lower leaf surfaces.", "Development of bright yellow to orange, powdery pustules (uredinia), especially on the underside of young leaves.", "Pustules may be surrounded by a purple or dark red halo on some hosts.", "Infected leaves become twisted, distorted, and may fall prematurely.", "Older lesions may turn dark brown or black as spores are released and tissue dies."], "stems": ["Pustules can form on young, succulent stems and shoots.", "Severe infection can lead to stem distortion, stunting, or dieback."], "fruit": ["Pustules develop on young, developing fruit.", "Infected fruit may become malformed, cracked, or stop developing."], "roots": [], "whole_plant": ["Stunted growth of new shoots.", "Severe infections can lead to significant defoliation and reduced plant vigor."], "signs_microscopic_or_visible": ["Presence of bright yellow-orange powdery spore masses (urediniospores) that can be wiped off the leaf surface."]}, "lookalikes": [{"condition_name": "leaf_spot", "condition_id": "guava.disease_fungal.leaf_spot", "key_differences": ["Leaf spots are typically necrotic (tan, brown, or black), not bright yellow/orange.", "Leaf spots are flat or slightly sunken, whereas rust forms raised, powdery pustules.", "Leaf spots often have a distinct, darker border; rust pustules are more diffuse initially.", "Leaf spots do not produce a powder that can be wiped off."]}, {"condition_name": "nutritional_deficiency", "condition_id": "guava.nutrient_deficiency.iron", "key_differences": ["Nutrient deficiency causes chlorosis (yellowing) in patterns (e.g., interveinal), not in discrete, circular spots.", "Deficiency symptoms do not include raised, powdery pustules.", "Deficiency yellowing affects the leaf tissue itself, while rust is a fungal growth on the surface."]}], "management": {"cultural": ["Prune to improve air circulation within the canopy.", "Remove and destroy infected plant parts to reduce inoculum.", "Avoid overhead irrigation to minimize periods of leaf wetness.", "Plant resistant or less susceptible cultivars if available."], "biological": ["Mycoparasites like Sphaerellopsis filum are natural enemies but commercial options are limited."], "chemical": ["Application of protective or systemic fungicides (e.g., copper-based, strobilurins, triazoles).", "Follow label instructions and rotate fungicide classes to prevent resistance."], "notes": "Management is most effective when started early, before the disease becomes widespread. Focus on protecting new, susceptible growth during favorable environmental conditions."}, "qa_seeds": {"verification_templates": ["Are there bright yellow or orange powdery spots on the leaves?", "Is the underside of the leaf covered in pustules?", "Are the young stems or leaves twisted or distorted?", "Can the yellow substance on the leaf be wiped off like a powder?", "Does the fruit have raised, colored spots?"], "attribute_templates": ["What color are the pustules on the leaves?", "What is the texture of the spots?", "Are the lesions raised or flat?", "Are the spots concentrated on the top or bottom of the leaf?", "Describe the shape of the infected leaves."], "diagnosis_templates": ["What disease causes yellow, powdery pustules on guava leaves and shoots?", "Based on the orange, powdery spots, what is wrong with this guava plant?", "What fungal infection is characterized by raised, sporulating lesions on young guava tissue?"], "counterfactual_templates": ["If the spots were white and powdery instead of yellow/orange, what might it be?", "What would you suspect if the spots were dark brown and sunken with no powder?", "If the yellowing was uniform between the veins and not in spots, what could be the issue?"], "severity_templates": ["What percentage of the leaf surface is covered by rust pustules?", "Is the rust infection mild, moderate, or severe?", "Is the disease causing significant leaf drop or distortion?"], "confounders": ["leaf_spot", "nutritional_deficiency"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse lighting is preferred. Avoid harsh shadows or direct sunlight that can wash out the yellow color of the pustules.", "occlusion_notes": "Ensure the symptomatic leaf surface (especially the underside) is clearly visible and not obscured by other leaves."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["APS Compendium of Tropical Fruit Diseases", "CABI Invasive Species Compendium", "University Extension Plant Pathology Guides"]}}
+{"schema_version": "1.0.0", "disease_id": "jackfruit.disease_fungal.algal_leaf_spot", "aliases": ["red rust of jackfruit", "Cephaleuros leaf spot"], "crop": {"common_name": "jackfruit", "scientific_name": "Artocarpus heterophyllus", "family": "Moraceae"}, "condition": {"common_name": "algal leaf spot", "scientific_name": "Cephaleuros virescens", "alt_names": ["red rust"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Plantae", "phylum": "Chlorophyta", "class": "Ulvophyceae", "order": "Trentepohliales", "family": "Trentepohliaceae", "genus": "Cephaleuros", "species": "virescens"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": ["wind-driven rain"], "dispersal": ["water-splashed zoospores", "wind"], "overwintering": ["in lesions on leaves and stems"]}, "environmental_risk": {"risk_factors": ["high humidity", "frequent rainfall", "poor air circulation", "low plant vigor", "shaded conditions"], "temp_c_day": [25, 32], "temp_c_night": [], "relative_humidity_pct": [80, 100], "leaf_wetness_hours_threshold": 8}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area affected with distinct, small spots.", "moderate": "11-30% of leaf area affected, spots may be coalescing.", "severe": ">30% of leaf area affected, extensive spotting, potential leaf yellowing and premature drop.", "notes": "Severity is based on the percentage of the total leaf surface covered by the characteristic raised, velvety spots. Assessment should be made on a representative sample of leaves from the plant."}, "symptoms": {"leaves": ["Circular to irregular spots on the upper leaf surface.", "Spots are distinctly raised with a velvety or felt-like texture.", "Lesion color is initially greenish-gray, maturing to orange or reddish-brown.", "A necrotic border may develop around the algal spot.", "Underlying leaf tissue may turn yellow (chlorosis) around the lesion.", "In severe cases, spots can coalesce to cover large areas of the leaf.", "Affected leaves may drop prematurely."], "stems": ["Similar raised, velvety, reddish-brown spots can appear on young, green stems.", "Stem lesions can girdle and cause dieback of small twigs."], "fruit": ["Fruit is rarely affected, but superficial spots can occur under high disease pressure."], "roots": [], "whole_plant": ["Reduced plant vigor and significant defoliation in severe, chronic infections."], "signs_microscopic_or_visible": ["Visible raised, tufted algal thallus (colony) on the leaf surface.", "The characteristic orange to reddish-brown color is due to the presence of haematochrome, a carotenoid pigment."]}, "lookalikes": [{"condition_name": "anthracnose", "condition_id": "jackfruit.disease_fungal.anthracnose", "key_differences": ["Anthracnose lesions are typically sunken and dark brown to black, not raised and reddish-brown.", "Anthracnose often shows concentric rings ('target spot' appearance), which is absent in algal leaf spot.", "Anthracnose may produce slimy, pinkish spore masses in humid conditions, whereas algal spots are dry and velvety."]}], "management": {"cultural": ["Improve air circulation through proper pruning of the canopy.", "Avoid overhead irrigation to minimize leaf wetness duration.", "Maintain plant vigor with balanced fertilization and adequate soil moisture.", "Remove and destroy fallen leaves and heavily infected branches."], "biological": [], "chemical": ["Apply copper-based fungicides (e.g., copper hydroxide, copper oxychloride) as a preventative measure during high-risk periods (warm, wet weather).", "Fungicides containing mancozeb can also provide control."], "notes": "Chemical control is often not necessary unless the infection is severe and impacting plant health. Focus on cultural practices first to create an environment less favorable for the alga."}, "qa_seeds": {"verification_templates": ["Is there a raised, velvety spot on the leaf?", "Does the spot have a reddish-brown or orange color?", "Can you see circular, felt-like patches on the jackfruit leaf?", "Confirm the presence of raised lesions on the upper leaf surface.", "Is the texture of the spot fuzzy or velvety?", "Are there any orange-colored, raised spots visible?"], "attribute_templates": ["What color are the spots on the leaf?", "Describe the texture of the lesions.", "Are the spots raised or sunken?", "What is the shape of the spots?", "Is there any yellowing of the leaf tissue around the spots?", "Are the spots located on the top or bottom of the leaf?"], "diagnosis_templates": ["Based on the raised, reddish-brown velvety spots, what disease is affecting this jackfruit leaf?", "What condition causes these orange, felt-like patches on the leaves?", "Why do these jackfruit leaves have raised, circular spots?"], "counterfactual_templates": ["If the spots were black, sunken, and had concentric rings, what might the disease be?", "What would this leaf look like if it were healthy?"], "severity_templates": ["What percentage of this leaf's surface is covered by the reddish-brown spots?", "How would you rate the severity of this algal leaf spot infection: mild, moderate, or severe?", "Are the spots small and isolated, or are they merging together?"], "confounders": ["anthracnose", "phyllosticta"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.2, "lighting_notes": "Avoid harsh shadows and overexposure. Diffuse, even lighting is best to capture the characteristic texture and color of the spots.", "occlusion_notes": "Ensure the primary spots are not obscured by other leaves, debris, or water droplets. An in-focus, close-up view of a representative lesion is critical."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T11:30:00Z", "updated_at": "2023-10-27T11:30:00Z", "sources": ["University extension guides on tropical fruit diseases", "APS Compendium of Tropical Fruit Diseases", "General plant pathology literature"]}}
+{"schema_version": "1.0.0", "disease_id": "jackfruit.disease_fungal.anthracnose", "aliases": ["jackfruit dieback", "twig blight", "blossom blight"], "crop": {"common_name": "jackfruit", "scientific_name": "Artocarpus heterophyllus", "family": "Moraceae"}, "condition": {"common_name": "anthracnose", "scientific_name": "Colletotrichum gloeosporioides", "alt_names": ["dieback", "fruit rot", "leaf spot"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Sordariomycetes", "order": "Glomerellales", "family": "Glomerellaceae", "genus": "Colletotrichum", "species": "gloeosporioides"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": ["insects (minor)"], "dispersal": ["rain splash", "wind-driven rain", "contaminated tools", "infected planting material"], "overwintering": ["infected leaves", "twigs", "mummified fruit", "cankers on stems"]}, "environmental_risk": {"risk_factors": ["high humidity", "frequent rainfall", "prolonged leaf wetness", "dense canopy", "young, tender growth"], "temp_c_day": [25, 30], "temp_c_night": [], "relative_humidity_pct": [90, 100], "leaf_wetness_hours_threshold": 12}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "< 5% of leaf or fruit surface area affected by lesions.", "moderate": "5-25% of leaf or fruit surface area affected; some twig dieback may be present.", "severe": "> 25% of leaf or fruit surface area affected; extensive twig dieback, blossom blight, or fruit rot.", "notes": "Severity is assessed on the most affected plant part (leaf, fruit, or stem). For dieback or blight, assessment is qualitative based on canopy damage."}, "symptoms": {"leaves": ["Small, water-soaked spots appear on young leaves, enlarging into irregular brown to black necrotic lesions.", "Lesions often have a dark border and a lighter, tan-to-gray center.", "A 'shot-hole' appearance can occur as the necrotic centers fall out.", "In severe cases, leaves may yellow, curl, and drop prematurely."], "stems": ["Causes dieback of young twigs and shoots, starting from the tip and progressing downward.", "Affected twigs turn dark brown to black and wither.", "Small, sunken cankers may form on older branches."], "fruit": ["Small, dark, sunken, circular spots develop on the fruit surface.", "Lesions enlarge, coalesce, and can cover large areas of the fruit.", "Infection can lead to premature fruit drop or extensive rot, making the fruit inedible."], "roots": [], "whole_plant": ["General decline and reduced vigor in severe, chronic infections."], "signs_microscopic_or_visible": ["Pink to orange gelatinous spore masses (acervuli) visible on lesions under moist conditions."]}, "lookalikes": [{"condition_name": "algal leaf spot", "condition_id": "jackfruit.disease_other.algal_leaf_spot", "key_differences": ["Algal spots are raised, superficial, and have a velvety texture, typically appearing orange-rust to grayish-green.", "Anthracnose lesions are sunken, necrotic (dead tissue), and brown-to-black, developing within the leaf tissue itself.", "Algal spots do not cause the 'shot-hole' effect or twig dieback associated with anthracnose."]}], "management": {"cultural": ["Prune to improve air circulation and light penetration within the canopy.", "Remove and destroy infected twigs, leaves, and mummified fruit (sanitation).", "Avoid overhead irrigation to minimize leaf wetness duration.", "Maintain plant vigor with proper fertilization and watering."], "biological": ["Application of Bacillus subtilis-based bio-fungicides may suppress the pathogen."], "chemical": ["Apply preventative fungicides (e.g., copper-based, mancozeb, or strobilurins) before or during the rainy season.", "Follow label instructions for application timing, rates, and pre-harvest intervals."], "notes": "An integrated pest management (IPM) approach combining cultural practices with timely fungicide applications is most effective for managing anthracnose."}, "qa_seeds": {"verification_templates": ["Is there evidence of sunken, dark lesions on the fruit?", "Are there irregular brown or black spots on the leaves, some with lighter centers?", "Do you see dieback on the young twigs, where they appear blackened and withered from the tip down?", "Are there pinkish-orange spore masses visible in the center of any spots?", "Are the spots on the leaves causing parts of the leaf to fall out, creating a 'shot-hole' look?"], "attribute_templates": ["What color are the spots on the leaves?", "What is the shape of the lesions on the fruit?", "Describe the texture of the spots on the fruit.", "Where on the plant are the symptoms most severe?", "Are the centers of the leaf spots a different color than the borders?", "Is there any sign of dieback on the stems or twigs?"], "diagnosis_templates": ["Based on the sunken black spots on the fruit and dieback on the twigs, what is wrong with my jackfruit?", "My jackfruit has irregular brown spots on its leaves and some of the young branches are dying. What disease is this?", "What is causing the pinkish ooze on the dark spots of my jackfruit fruit?"], "counterfactual_templates": ["If the spots on the leaves were raised and orange, would it still be anthracnose?", "What if the spots were only a black, sooty powder on the surface that could be wiped off? Could it be anthracnose?"], "severity_templates": ["What percentage of the leaf surface is covered in dark spots?", "How severe is the anthracnose infection on this fruit?", "Based on the amount of twig dieback, would you classify this anthracnose as mild, moderate, or severe?"], "confounders": ["phyllosticta", "algal_leaf_spot"]}, "data_requirements": {"min_resolution_px": 480, "min_roi_fraction": 0.2, "lighting_notes": "Even, diffuse lighting is preferred. Avoid harsh shadows or direct sunlight that can obscure lesion details like color and texture.", "occlusion_notes": "Ensure the symptomatic area (leaf, fruit, or stem) is not obscured by other leaves, branches, or debris. Multiple angles can be helpful."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2024-05-21T12:00:00Z", "updated_at": "2024-05-21T12:00:00Z", "sources": ["University extension guides for tropical fruit pathology", "APS Compendium of Tropical Fruit Diseases", "General plant pathology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "jackfruit.healthy.healthy", "aliases": ["normal jackfruit", "asymptomatic jackfruit", "unaffected jackfruit"], "crop": {"common_name": "jackfruit", "scientific_name": "Artocarpus heterophyllus", "family": "Moraceae"}, "condition": {"common_name": "healthy", "scientific_name": null, "alt_names": ["asymptomatic", "normal"], "pathogen": {"type": "none", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "healthy", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": [], "temp_c_day": [], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Plant shows no signs of disease or stress. Leaves are uniformly colored, fully expanded, and free of spots or malformations.", "moderate": "Not applicable for a healthy state.", "severe": "Not applicable for a healthy state.", "notes": "This is a binary assessment; the plant is either healthy (meeting the 'mild' description) or it is not. Any visible symptom would classify it as having a condition other than 'healthy'."}, "symptoms": {"leaves": ["Uniformly green color, typically a deep, glossy green on the upper surface.", "Smooth, entire (un-toothed) leaf margins.", "Absence of spots, lesions, discoloration, or pustules.", "No yellowing (chlorosis) or browning (necrosis).", "Normal size and shape for the cultivar; typically oblong or ovate.", "No curling, distortion, or stunting.", "Surface is clean, without any powdery, sooty, or sticky coatings."], "stems": ["Stems and branches are firm, with intact, typically grayish-brown bark.", "No cankers, galls, cracks, or oozing substances."], "fruit": ["Skin is uniformly colored according to maturity (green when young, yellowish-green to brown when ripe).", "Exterior is free from sunken lesions, soft spots, mold, or unusual blemishes.", "Fruit is firm and develops to a normal size and shape."], "roots": ["Not typically visible in standard images."], "whole_plant": ["Exhibits vigorous growth with a dense, full canopy.", "No widespread wilting, dieback, or stunting."], "signs_microscopic_or_visible": ["Absence of any visible pathogen structures such as fungal mycelium, spores, fruiting bodies, or bacterial ooze."]}, "lookalikes": [{"condition_name": "Algal Leaf Spot", "condition_id": "jackfruit.fungal.algal_leaf_spot", "key_differences": ["Healthy leaves have a smooth, uniform surface, whereas algal leaf spot creates raised, velvety, greenish-gray to orange spots.", "Healthy leaves lack the distinct, roughly circular lesions characteristic of this condition.", "There are no yellow halos on healthy leaves, which can sometimes border algal spots."]}, {"condition_name": "Sooty Mold", "condition_id": "jackfruit.fungal.sooty_mold", "key_differences": ["Healthy leaves have a clean, glossy surface, not a superficial, black, soot-like coating that can be wiped off.", "The surface of healthy leaves and stems is not sticky with honeydew, which is the substrate for sooty mold growth.", "Healthy plants do not have associated infestations of sap-sucking insects (like aphids or scale) that produce honeydew."]}, {"condition_name": "Anthracnose", "condition_id": "jackfruit.fungal.anthracnose", "key_differences": ["Healthy leaves are free of the irregular, dark brown to black, necrotic spots or blotches caused by anthracnose.", "Healthy fruit does not have the characteristic dark, sunken, circular lesions that may develop pinkish spore masses in the center.", "Healthy young twigs and shoots show no signs of dieback, which is a common symptom of severe anthracnose."]}], "management": {"cultural": ["Provide adequate spacing between plants to ensure good air circulation.", "Practice balanced fertilization and proper irrigation to maintain plant vigor.", "Prune to remove dead or weak branches and improve light penetration.", "Ensure good field sanitation by removing and destroying fallen leaves and fruit."], "biological": [], "chemical": [], "notes": "Management for a healthy plant is preventative, focusing on cultural practices that create an environment unfavorable for pathogen development and promote overall plant health."}, "qa_seeds": {"verification_templates": ["Is this jackfruit plant healthy?", "Does this image show a normal, asymptomatic jackfruit leaf?", "Are there any visible signs of disease or stress on the foliage?", "Confirm that the plant part shown is free from spots, discoloration, or damage.", "Is the leaf surface clean and uniformly green?"], "attribute_templates": ["What is the color of the leaves?", "Are there any spots or lesions on the fruit?", "Describe the texture of the leaf surface.", "Is the plant showing any signs of wilting or dieback?", "What is the overall condition of the plant's canopy?", "Are the leaf margins smooth or irregular?"], "diagnosis_templates": ["What condition, if any, is affecting this jackfruit?", "Based on the visual evidence, what is the health status of this plant?", "Is this plant healthy or is it showing symptoms of a disease?"], "counterfactual_templates": ["If this leaf had a black, powdery coating on its surface, what condition might it be?", "What would I see on this fruit if it were infected with anthracnose?", "If there were raised, velvety, orange spots on this leaf, what would be the likely diagnosis?"], "severity_templates": ["What is the severity of the condition shown?", "What percentage of the leaf area is affected by symptoms?", "On a scale from healthy to severe, how would you rate this plant's condition?"], "confounders": ["sooty_mold", "algal_leaf_spot", "anthracnose"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse lighting is ideal. Avoid hard shadows, direct glare, or underexposure that can obscure leaf color and texture.", "occlusion_notes": "The primary subject (leaf, fruit, or stem) should be clearly visible and not significantly occluded by other plant parts or background objects."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2024-05-21T10:00:00Z", "updated_at": "2024-05-21T10:00:00Z", "sources": ["General university extension guides for tropical fruit production", "APS Compendium of Tropical Fruit Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "jackfruit.disease_fungal.leaf_spot", "aliases": ["Phomopsis leaf spot of jackfruit", "Fungal leaf spot of jackfruit"], "crop": {"common_name": "jackfruit", "scientific_name": "Artocarpus heterophyllus", "family": "Moraceae"}, "condition": {"common_name": "leaf spot", "scientific_name": "Phomopsis artocarpina", "alt_names": ["Phomopsis leaf spot"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Diaporthales", "family": "Diaporthaceae", "genus": "Phomopsis", "species": "artocarpina"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["wind-driven rain", "water splash", "contaminated pruning tools"], "overwintering": ["infected leaf debris on the ground", "dormant mycelium in lesions on twigs"]}, "environmental_risk": {"risk_factors": ["prolonged leaf wetness", "high humidity", "poor air circulation in the canopy", "frequent rainfall during warm weather"], "temp_c_day": [24, 30], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 8}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area affected; few, scattered lesions, no significant yellowing.", "moderate": "11-40% of leaf area affected; multiple lesions, some may be coalescing, minor leaf yellowing present.", "severe": ">40% of leaf area affected; extensive lesion coverage forming large necrotic patches, significant yellowing, and potential for premature leaf drop.", "notes": "Severity is estimated based on the percentage of the total leaf surface covered by spots and associated chlorosis/necrosis on a representative, fully expanded leaf."}, "symptoms": {"leaves": ["Initial spots are small, circular, and yellowish to light brown.", "Lesions expand to become irregular or angular, sometimes limited by leaf veins.", "Mature spots develop a characteristic grayish-tan to white center.", "A distinct, dark brown or purplish border surrounds the necrotic center.", "A diffuse yellow halo may be present around the lesion border.", "Tiny black dots (pycnidia) may be visible with a hand lens in the center of older lesions.", "In severe infections, multiple lesions coalesce to form large, blighted areas.", "Affected leaves may turn yellow (chlorosis) and drop prematurely, leading to defoliation."], "stems": ["Lesions on young twigs are rare but can appear as small, sunken, dark spots."], "fruit": ["Fruit infection is uncommon, but may present as small, circular, sunken, dark lesions on the rind."], "roots": [], "whole_plant": ["Reduced plant vigor and sparse canopy in cases of severe, chronic infection and defoliation."], "signs_microscopic_or_visible": ["Visible sign: small, black, flask-shaped fruiting bodies (pycnidia) embedded in the necrotic tissue of the lesion center."]}, "lookalikes": [{"condition_name": "anthracnose", "condition_id": "jackfruit.disease_fungal.anthracnose", "key_differences": ["Anthracnose lesions are typically darker brown to black, more sunken, and may show concentric rings ('target spot' appearance).", "Anthracnose often causes a more severe blight on young leaves and shoots, leading to distortion and dieback.", "Under humid conditions, anthracnose lesions may produce visible pinkish-orange spore masses (acervuli), which are absent in this leaf spot."]}, {"condition_name": "phyllosticta", "condition_id": "jackfruit.disease_fungal.phyllosticta", "key_differences": ["Phyllosticta spots are often larger, more consistently circular, and have a more papery, light tan-colored center.", "The dark border on Phyllosticta lesions can be more pronounced, wider, and more sharply defined.", "The black pycnidia (fruiting bodies) in Phyllosticta may be larger and more prominent within the lesion center."]}, {"condition_name": "algal_leaf_spot", "condition_id": "jackfruit.physiological_symptom.algal_leaf_spot", "key_differences": ["Algal spots are superficial and have a raised, velvety, or crusty texture, whereas fungal spots are necrotic and can be sunken.", "Algal spots are typically greenish-gray to orange-red in color, not brown or tan with a dark border.", "Algal spots do not cause the leaf tissue to die or develop a surrounding yellow halo."]}], "management": {"cultural": ["Prune the tree canopy to improve air circulation and sunlight penetration.", "Rake and destroy fallen infected leaves to reduce pathogen inoculum.", "Use drip or furrow irrigation instead of overhead sprinklers to keep foliage dry.", "Maintain balanced plant nutrition to enhance tree vigor and disease resistance."], "biological": ["Applications of products containing *Bacillus subtilis* or *Trichoderma* spp. may help suppress the pathogen as a preventative measure."], "chemical": ["Apply protective fungicides containing copper hydroxide, mancozeb, or chlorothalonil before or during the rainy season.", "Ensure thorough spray coverage on both upper and lower leaf surfaces.", "Alternate fungicide chemistries to prevent the development of resistance."], "notes": "Management is most effective when integrating cultural practices with preventative chemical applications during high-risk periods."}, "qa_seeds": {"verification_templates": ["Is there a spot on this jackfruit leaf?", "Does the leaf show any signs of damage or discoloration?", "Are there circular or irregular lesions visible on the leaf?", "Can you confirm the presence of one or more spots on the foliage?", "Is the leaf tissue unhealthy?"], "attribute_templates": ["What color is the center of the spot?", "Does the spot have a distinct, dark border?", "Is there a yellow halo surrounding the lesion?", "Are there tiny black dots visible inside the center of the spot?", "Describe the shape of the lesion on the leaf.", "Are multiple spots merging together to form larger patches?"], "diagnosis_templates": ["Based on the spots with grayish centers and dark borders, what disease is affecting this jackfruit leaf?", "What fungal disease is characterized by spots with white centers, dark margins, and sometimes yellow halos on jackfruit leaves?", "The jackfruit leaf has multiple spots causing it to turn yellow. What is the likely diagnosis?"], "counterfactual_templates": ["If the spots were raised and orange-red, would it still be fungal leaf spot?", "If the spots were dark, sunken, and had a target-like pattern of rings, what disease would be more likely?", "What would this leaf look like if it were perfectly healthy?"], "severity_templates": ["What percentage of this leaf's surface is covered by spots?", "How would you rate the severity of this leaf spot infection on a scale of mild, moderate, or severe?", "Is this a mild infection with only a few scattered spots?"], "confounders": ["anthracnose", "phyllosticta", "algal_leaf_spot"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Diffuse, even lighting is preferred. Avoid harsh shadows or direct sun glare that can obscure lesion color, texture, and borders.", "occlusion_notes": "The primary lesions of interest should be in focus and not significantly obscured by other leaves, branches, or debris."}, "provenance": {"created_by": "expert_plant_pathologist_VQA_designer", "reviewed_by": "expert_plant_pathologist_VQA_designer", "created_at": "2024-05-23T10:00:00Z", "updated_at": "2024-05-23T10:00:00Z", "sources": ["General university extension plant pathology guides", "APS Compendium of Tropical Fruit Diseases", "Peer-reviewed plant pathology journals"]}}
+{"schema_version": "1.0.0", "disease_id": "jackfruit.disease_fungal.phyllosticta", "aliases": ["Phyllosticta leaf spot of jackfruit", "Jackfruit leaf spot"], "crop": {"common_name": "jackfruit", "scientific_name": "Artocarpus heterophyllus", "family": "Moraceae"}, "condition": {"common_name": "Phyllosticta leaf spot", "scientific_name": "Phyllosticta artocarpina", "alt_names": [], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Botryosphaeriales", "family": "Phyllostictaceae", "genus": "Phyllosticta", "species": "artocarpina"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["rain splash", "wind-driven rain", "contaminated pruning tools"], "overwintering": ["infected leaf debris on the ground", "dormant mycelium in existing lesions on attached leaves and twigs"]}, "environmental_risk": {"risk_factors": ["high humidity", "prolonged leaf wetness", "dense canopy with poor air circulation", "frequent rainfall"], "temp_c_day": [24, 30], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 8}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-5% of leaf area affected. Few, scattered lesions, typically less than 10 per mature leaf.", "moderate": "6-25% of leaf area affected. Multiple lesions are present, some may begin to coalesce. Minor chlorosis (yellowing) may appear around spots.", "severe": ">25% of leaf area affected. Numerous lesions coalesce into large necrotic blotches. Significant chlorosis and premature leaf drop (defoliation) is likely.", "notes": "Assessment should be based on the average symptomatic area across several mature leaves on a branch, not just the single worst leaf."}, "symptoms": {"leaves": ["Initial symptoms are small, circular, yellowish spots on the leaf lamina.", "Spots enlarge over time, becoming circular to slightly irregular, up to 1 cm in diameter.", "Mature lesions develop a characteristic pale, grayish-white or tan center.", "A distinct, raised, dark brown to purplish-black border sharply delineates the necrotic center.", "Tiny, black, dot-like fungal fruiting bodies (pycnidia) are often visible in the pale center, sometimes in a concentric ring pattern.", "A diffuse yellow halo may surround the entire lesion.", "In severe infections, multiple spots may merge (coalesce) to form large, irregular dead patches.", "Heavily infected leaves may become distorted, curl, and fall prematurely."], "stems": [], "fruit": [], "roots": [], "whole_plant": [], "signs_microscopic_or_visible": ["Presence of black pycnidia (fruiting bodies) in the center of mature lesions, which can be seen with the naked eye or a hand lens."]}, "lookalikes": [{"condition_name": "Anthracnose", "condition_id": "jackfruit.disease_fungal.anthracnose", "key_differences": ["Anthracnose lesions are typically darker brown to black, often sunken, and may appear water-soaked, especially on young tissues.", "Phyllosticta spots have a more defined, pale gray or white center with a sharp, dark border, a combination less common in anthracnose.", "Under humid conditions, anthracnose can produce salmon-pink spore masses (acervuli) in lesions, whereas Phyllosticta produces tiny black dots (pycnidia).", "Anthracnose commonly affects fruit, causing rot, which is not a primary symptom of Phyllosticta leaf spot."]}, {"condition_name": "Algal Leaf Spot", "condition_id": "jackfruit.disease_other.algal_leaf_spot", "key_differences": ["Algal spots are superficial and have a raised, velvety, or crusty texture, unlike the flat, necrotic tissue of Phyllosticta lesions.", "The color of algal spots is typically greenish-gray to rusty orange, lacking the distinct pale center and dark border of Phyllosticta.", "Algal spots are colonies growing on the leaf surface and can often be physically scraped off, whereas Phyllosticta lesions are dead tissue integral to the leaf."]}], "management": {"cultural": ["Practice good field sanitation by removing and destroying fallen leaves and infected plant debris.", "Prune trees to improve air circulation and sunlight penetration within the canopy, which helps leaves dry faster.", "Avoid overhead irrigation that wets foliage for extended periods; use drip or soaker hoses instead.", "Maintain plant vigor with balanced fertilization and proper watering, as stressed plants are more susceptible."], "biological": ["Applications of bio-fungicides containing strains of *Bacillus subtilis* or *Trichoderma* spp. may help suppress the pathogen."], "chemical": ["Apply protective fungicides, such as those containing copper hydroxide, mancozeb, or chlorothalonil, during periods of high risk (e.g., rainy season).", "Ensure thorough spray coverage on both upper and lower leaf surfaces.", "Alternate fungicides with different modes of action to prevent the development of pathogen resistance."], "notes": "Management should focus on preventative cultural practices. Chemical intervention is typically only warranted in commercial settings where disease pressure is high and impacting tree health or yield."}, "qa_seeds": {"verification_templates": ["Does this jackfruit leaf have any spots or lesions?", "Is there evidence of a disease on this leaf?", "Can you see any circular discolorations on the leaf?", "Does the leaf tissue in the image appear damaged?", "Are there any unhealthy-looking spots on this leaf?"], "attribute_templates": ["Do the spots have a pale, grayish-white center?", "Is there a distinct dark purple or brown border around the spots?", "Can you see tiny black dots inside the center of the lesions?", "Is there a yellow halo surrounding the spots?", "Are the lesions roughly circular in shape?", "Are multiple spots merging to form larger blotches?"], "diagnosis_templates": ["Given the pale centers and dark borders of the spots, is this Phyllosticta leaf spot?", "Do the symptoms on this jackfruit leaf indicate an infection by a *Phyllosticta* fungus?", "What disease is characterized by leaf spots with tiny black pycnidia in the center?"], "counterfactual_templates": ["If the spots were raised, velvety, and orange, would it still be Phyllosticta leaf spot?", "If the lesions were dark, sunken, and oozing a pinkish mass, could this be Phyllosticta?"], "severity_templates": ["What percentage of this leaf's surface is affected by Phyllosticta spots?", "On a scale of mild, moderate, or severe, how would you classify this Phyllosticta infection?", "Is the leaf damage severe enough to be considered a 'severe' infection?"], "confounders": ["anthracnose", "algal_leaf_spot"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.2, "lighting_notes": "Use diffuse, even lighting. Avoid direct, harsh sunlight and hard shadows, which can obscure the subtle color variations of the lesion's center, border, and halo.", "occlusion_notes": "The primary symptomatic leaf area should be in focus and not significantly covered by other leaves, branches, or background objects. At least one complete, mature lesion should be fully visible."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["General university extension guides for tropical fruit pathology", "APS Compendium of Tropical Fruit Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "jackfruit.disease_fungal.sooty_mold", "aliases": ["sooty mould", "black mold"], "crop": {"common_name": "jackfruit", "scientific_name": "Artocarpus heterophyllus", "family": "Moraceae"}, "condition": {"common_name": "sooty mold", "scientific_name": "Capnodium spp., Meliola spp., Leptoxyphium spp.", "alt_names": ["honeydew mold", "black sooty mold"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Capnodiales", "family": "Capnodiaceae", "genus": "Capnodium", "species": ""}}}, "issue_type": "disease_fungal", "transmission": {"vectors": ["aphids", "mealybugs", "scale insects", "whiteflies"], "dispersal": ["wind", "rain_splash"], "overwintering": ["As mycelium on plant surfaces in honeydew deposits"]}, "environmental_risk": {"risk_factors": ["Presence of honeydew-producing insects", "High humidity", "Poor air circulation", "Shaded conditions"], "temp_c_day": [20, 30], "temp_c_night": [], "relative_humidity_pct": [70, 95], "leaf_wetness_hours_threshold": 8}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf surface covered with a thin, patchy black coating.", "moderate": "11-40% of leaf surface covered, with some dense patches forming.", "severe": ">40% of leaf surface covered by a thick, continuous black crust, potentially causing leaf yellowing.", "notes": "Severity measures the coverage of the superficial fungal growth, which is non-parasitic and grows on insect honeydew. The mold itself can be wiped off."}, "symptoms": {"leaves": ["Thin to thick, black, soot-like coating on the upper leaf surface.", "Fungal growth is superficial and can be easily wiped or scraped off the leaf.", "Patches may be small and sparse or coalesce to cover the entire leaf blade.", "Underlying leaf tissue remains green initially but may yellow (chlorosis) if the coating is thick and blocks sunlight.", "A clear, sticky substance (honeydew) is often present on or beneath the mold.", "Ants may be seen farming the honeydew-producing insects."], "stems": ["Similar black, sooty coating can form on twigs and branches, especially near insect colonies."], "fruit": ["Superficial black, sooty patches on the fruit rind.", "The mold is a cosmetic blemish and does not cause the fruit to rot."], "roots": [], "whole_plant": ["Reduced plant vigor and stunted growth in severe cases due to impaired photosynthesis.", "Visible infestation of sucking insects like mealybugs, aphids, or scale."], "signs_microscopic_or_visible": ["Black, thread-like fungal strands (mycelia) visible on plant surfaces.", "Presence of honeydew-producing insects."]}, "lookalikes": [{"condition_name": "anthracnose", "condition_id": "jackfruit.disease_fungal.anthracnose", "key_differences": ["Sooty mold is a superficial coating that can be wiped off; anthracnose lesions are sunken, necrotic tissue that cannot be wiped off.", "Anthracnose causes distinct dark brown to black spots *within* the leaf tissue, not on top of it.", "Anthracnose lesions often have a defined border and may show concentric rings, unlike the irregular spread of sooty mold."]}, {"condition_name": "algal leaf spot", "condition_id": "jackfruit.disease_algal.algal_leaf_spot", "key_differences": ["Algal spots are typically raised, velvety, and grayish-green or orange-brown, not black and powdery like sooty mold.", "Algal spots are tightly attached to the leaf tissue and cannot be easily scraped off.", "Sooty mold is associated with sticky honeydew from insects, while algal spot is not."]}, {"condition_name": "phyllosticta", "condition_id": "jackfruit.disease_fungal.phyllosticta", "key_differences": ["Phyllosticta causes distinct lesions with tan or gray centers and dark borders within the leaf, whereas sooty mold is a uniform black layer on the leaf surface.", "Sooty mold can be wiped away, revealing healthy tissue underneath; Phyllosticta is a necrotic spot that is part of the leaf.", "Phyllosticta lesions may contain tiny black fruiting bodies (pycnidia) visible as specks, which are absent in sooty mold."]}], "management": {"cultural": ["Control populations of honeydew-producing insects (mealybugs, aphids, scale) as this is the primary cause.", "Prune affected branches to improve air circulation and sunlight penetration.", "Wash off mold and honeydew from leaves with a strong spray of water and mild soap.", "Avoid excessive nitrogen fertilization which can lead to lush growth favored by sucking insects."], "biological": ["Introduce or encourage natural predators of sucking insects, such as lady beetles, lacewings, and parasitic wasps."], "chemical": ["Apply horticultural oils or insecticidal soaps to control the insect populations.", "Fungicides are generally not recommended or effective as the fungus is non-parasitic and grows on the honeydew, not the plant tissue."], "notes": "Management must focus on controlling the insect pest that is producing the honeydew. Once the insects are gone, the sooty mold will weather away."}, "qa_seeds": {"verification_templates": ["Is there a black, powdery coating on the leaf surface?", "Can the black substance on the leaf be rubbed off with a finger?", "Does the leaf feel sticky to the touch?", "Are there any small insects, like aphids or mealybugs, visible on the stems or undersides of leaves?", "Is the leaf tissue underneath the black coating still green?"], "attribute_templates": ["What color is the growth on the leaf?", "Describe the texture of the black substance.", "Is the black coating on the top or bottom of the leaf?", "Does the black growth appear as small spots or a continuous layer?", "Are ants present on the plant near the affected areas?"], "diagnosis_templates": ["What is causing this black, soot-like mold on my jackfruit leaves?", "Is this black powder on my plant a disease?", "How do I get rid of the black sticky stuff on my jackfruit tree?"], "counterfactual_templates": ["What if the black spots were sunken into the leaf and couldn't be wiped off?", "What if the spots were raised and orange-colored instead of black and sooty?", "What if the black coating was not associated with any sticky residue?"], "severity_templates": ["What percentage of the total leaf area is covered by the sooty mold?", "Is the black coating on this leaf thin and patchy or thick and dense?", "How would you rate the sooty mold coverage: mild, moderate, or severe?"], "confounders": ["anthracnose", "algal_leaf_spot", "phyllosticta"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Diffuse, even lighting is ideal. Avoid hard shadows or direct sunlight that can cause glare on honeydew or obscure the black mold's texture.", "occlusion_notes": "Ensure the affected leaf surface is clearly visible. An image showing both the mold and the presence of associated insects is highly valuable."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2024-05-21T10:00:00Z", "updated_at": "2024-05-21T10:00:00Z", "sources": ["General university extension guides for tropical fruit pathology", "APS Compendium of Tropical Fruit Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "lemon.disease_bacterial.bacterial_canker", "aliases": ["citrus canker", "Asiatic citrus canker"], "crop": {"common_name": "lemon", "scientific_name": "Citrus limon", "family": "Rutaceae"}, "condition": {"common_name": "bacterial canker", "scientific_name": "Xanthomonas citri subsp. citri", "alt_names": ["citrus canker"], "pathogen": {"type": "disease_bacterial", "taxonomy": {"kingdom": "Bacteria", "phylum": "Pseudomonadota", "class": "Gammaproteobacteria", "order": "Xanthomonadales", "family": "Xanthomonadaceae", "genus": "Xanthomonas", "species": "X. citri subsp. citri"}}}, "issue_type": "disease_bacterial", "transmission": {"vectors": ["Citrus leafminer (Phyllocnistis citrella)", "Humans (via contaminated tools, clothing, or equipment)"], "dispersal": ["Wind-driven rain", "Water splash from irrigation or rain", "Mechanical movement of infected plant material"], "overwintering": ["In lesions on leaves, twigs, and branches remaining on the tree"]}, "environmental_risk": {"risk_factors": ["High rainfall and humidity", "Warm temperatures", "Wounds from wind, thorns, or insect feeding (e.g., citrus leafminer)"], "temp_c_day": [20, 30], "temp_c_night": [], "relative_humidity_pct": [80, 100], "leaf_wetness_hours_threshold": 6}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "< 5% of leaf area affected with distinct, scattered lesions.", "moderate": "5-25% of leaf area affected; some lesions may coalesce; minor twig dieback possible.", "severe": "> 25% of leaf area affected; extensive lesion coalescence, significant defoliation, twig dieback, and fruit drop.", "notes": "Severity is assessed on the most affected leaves and overall canopy impact. Fruit lesions also contribute to severity, but leaf area is a primary visual indicator for image-based assessment."}, "symptoms": {"leaves": ["Small, raised, blister-like lesions appear on both upper and lower leaf surfaces.", "Lesions develop a corky, crater-like center, often appearing rough or scab-like.", "A distinct, water-soaked margin surrounds young lesions.", "A bright yellow halo encircles the entire lesion.", "Lesions can coalesce, leading to large, irregular necrotic areas.", "Severe infections cause premature leaf drop (defoliation).", "The center of older lesions may fall out, creating a 'shot-hole' appearance."], "stems": ["Raised, corky cankers form on twigs and young branches.", "Stem cankers are visually similar to leaf lesions but may lack a prominent yellow halo.", "Severe stem infections can lead to twig dieback."], "fruit": ["Raised, corky, crater-like lesions appear on the fruit rind.", "Fruit lesions are surrounded by a water-soaked or oily margin.", "Lesions do not penetrate deep into the fruit pulp but make fruit unmarketable.", "Severe infections cause premature fruit drop."], "roots": [], "whole_plant": ["General decline, reduced vigor, and sparse foliage in chronically infected trees."], "signs_microscopic_or_visible": ["Under high humidity, bacterial ooze may be visible from young lesions, but this is not a common field observation."]}, "lookalikes": [{"condition_name": "citrus leafminer", "condition_id": "lemon.pest_damage.citrus_leafminer", "key_differences": ["Leafminer damage consists of silvery, serpentine (winding) trails or tunnels within the leaf tissue, not circular spots.", "Canker lesions are raised and corky, whereas leafminer trails are sunken or at the leaf surface.", "Leafminer damage often causes severe leaf curling and distortion, which is less typical for canker alone.", "Canker lesions have a distinct yellow halo, which is absent in leafminer trails."]}, {"condition_name": "nutritional deficiency", "condition_id": "lemon.nutritional_deficiency.generic", "key_differences": ["Deficiency symptoms (e.g., yellowing, mottling) are typically symmetrical across the leaf or follow vein patterns (e.g., 'inverted V').", "Canker lesions are discrete, raised, corky spots, often randomly distributed.", "Deficiencies cause changes in color (chlorosis) but do not create raised, crater-like lesions."]}, {"condition_name": "bacterial_spot", "condition_id": "lemon.disease_bacterial.bacterial_spot", "key_differences": ["Bacterial spot lesions are often smaller, darker, and more angular or water-soaked than canker.", "Canker lesions are distinctly raised and have a more prominent corky, crater-like texture.", "The yellow halo around canker is typically more pronounced and consistently present than in bacterial spot."]}], "management": {"cultural": ["Plant only certified disease-free nursery stock.", "Prune and destroy infected twigs and branches during dry weather.", "Install windbreaks around orchards to reduce wind speed and rain splash.", "Decontaminate pruning tools and equipment between trees and blocks."], "biological": ["No widely effective biological control agents are commercially available for canker."], "chemical": ["Preventative applications of copper-based bactericides are the primary chemical control.", "Sprays should be timed to protect new growth flushes, especially before rainy seasons."], "notes": "Management is focused on prevention and reducing inoculum. Eradication is difficult once established. The disease is subject to strict quarantine regulations in many citrus-producing regions."}, "qa_seeds": {"verification_templates": ["Are there raised, corky spots on the leaves or fruit?", "Do the spots on the leaves have a distinct yellow halo around them?", "Is the center of the lesion rough, scab-like, or crater-like?", "Are similar raised lesions present on the twigs?", "Do the lesions appear on both the top and bottom of the leaf?"], "attribute_templates": ["What is the texture of the center of the spots?", "Describe the border of the lesions on the leaf.", "What color is the halo surrounding the spots?", "Are the lesions flat or raised from the leaf surface?", "Are the spots circular or do they form winding trails?"], "diagnosis_templates": ["Based on the raised, corky lesions with yellow halos on the leaves and fruit, what is the likely disease?", "The lemon tree has crater-like spots on its leaves and is losing leaves. What bacterial disease could this be?", "What disease is characterized by raised, corky cankers on lemon leaves, stems, and fruit?"], "counterfactual_templates": ["If the damage was a silvery, winding trail inside the leaf, what would it be instead?", "If the yellowing was symmetrical and followed the leaf veins without any raised spots, what might be the issue?", "If the spots were flat and dark without a raised, corky texture, what other disease might it be?"], "severity_templates": ["What percentage of the leaf surface is covered by canker lesions?", "Based on the lesion density and defoliation, would you classify the canker infection as mild, moderate, or severe?"], "confounders": ["citrus_leafminer", "nutritional_deficiency", "bacterial_spot"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Diffuse, even lighting is best. Avoid harsh shadows or direct sunlight that can obscure the texture and yellow halo of lesions.", "occlusion_notes": "Ensure the symptomatic leaf or fruit is not obscured by other leaves or branches. A clear, in-focus view of individual lesions is necessary for accurate diagnosis."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University extension plant pathology guides", "APS Compendium of Citrus Diseases", "CABI Invasive Species Compendium"]}}
+{"schema_version": "1.0.0", "disease_id": "lemon.disease_bacterial.bacterial_spot", "aliases": ["Citrus Bacterial Spot", "CBS"], "crop": {"common_name": "lemon", "scientific_name": "Citrus limon", "family": "Rutaceae"}, "condition": {"common_name": "bacterial spot", "scientific_name": "Xanthomonas alfalfae subsp. citrumelonis", "alt_names": [], "pathogen": {"type": "disease_bacterial", "taxonomy": {"kingdom": "Bacteria", "phylum": "Pseudomonadota", "class": "Gammaproteobacteria", "order": "Lysobacterales", "family": "Lysobacteraceae", "genus": "Xanthomonas", "species": "Xanthomonas alfalfae subsp. citrumelonis"}}}, "issue_type": "disease_bacterial", "transmission": {"vectors": ["Wind-driven rain", "Insects (e.g., citrus leafminers creating wounds)", "Contaminated pruning tools"], "dispersal": ["Water splash from rain or irrigation", "Aerosols in windy conditions", "Human activity (handling, equipment)"], "overwintering": ["In lesions on leaves, stems, and fruit", "On plant debris on the ground"]}, "environmental_risk": {"risk_factors": ["Prolonged periods of leaf wetness", "High humidity and frequent rainfall", "Warm temperatures", "Presence of wounds from wind, hail, or pests"], "temp_c_day": [20, 32], "temp_c_night": [], "relative_humidity_pct": [80, 100], "leaf_wetness_hours_threshold": 4}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "< 5% of the leaf surface is affected by lesions. No significant yellowing or leaf drop.", "moderate": "5-25% of the leaf surface is affected. Some lesions may be coalescing, and minor leaf yellowing (chlorosis) is present.", "severe": "> 25% of the leaf surface is affected, with large necrotic areas, significant yellowing, and/or premature leaf drop (defoliation).", "notes": "Severity is assessed on representative, fully symptomatic leaves. For fruit, severity can be assessed by lesion count (e.g., mild: 1-5, moderate: 6-15, severe: >15)."}, "symptoms": {"leaves": ["Initial symptoms are small, circular, water-soaked spots, often on the leaf underside.", "Lesions enlarge to 1-5 mm, becoming dark brown to black.", "A distinct, bright yellow halo typically surrounds the dark, necrotic center.", "Spots may have a greasy or oily appearance, especially when young.", "Lesions feel flat or slightly sunken, not rough or raised like canker.", "In severe cases, spots merge, forming large, irregular blighted areas.", "Infected leaves may yellow and drop prematurely."], "stems": ["Small, dark, slightly elongated lesions may form on young, green twigs, but are less common than leaf symptoms."], "fruit": ["Small, dark brown to black, circular pits or spots develop on the rind.", "Fruit lesions are typically sunken and do not become corky or raised.", "A yellow halo may be visible around spots on immature, green fruit.", "Lesions are generally superficial and do not cause fruit rot."], "roots": [], "whole_plant": ["General thinning of the canopy due to defoliation in severe, prolonged infections."], "signs_microscopic_or_visible": ["Under conditions of very high humidity, bacterial ooze may be visible from the center of lesions, but this is difficult to observe in the field."]}, "lookalikes": [{"condition_name": "bacterial canker", "condition_id": "lemon.disease_bacterial.bacterial_canker", "key_differences": ["Bacterial spot lesions are typically flat or sunken and dark, while canker lesions are distinctly raised, corky, and crater-like (volcanic).", "Canker lesions often have a water-soaked margin, whereas bacterial spot lesions are known for a more defined, bright yellow halo.", "Canker lesions tend to be larger and more erumpent (bursting through the epidermis) than bacterial spot lesions."]}, {"condition_name": "nutritional deficiency", "condition_id": "lemon.abiotic.nutritional_deficiency", "key_differences": ["Deficiency symptoms create patterns related to leaf veins (e.g., interveinal chlorosis, 'inverted V' shapes), while bacterial spots are randomly scattered, discrete lesions.", "Bacterial spots are necrotic (dead tissue), whereas deficiency symptoms are typically chlorotic (yellowing) without distinct, dark spots.", "Deficiency patterns often appear symmetrically on both halves of the leaf blade."]}, {"condition_name": "citrus_leafminer", "condition_id": "lemon.pest_insect.citrus_leafminer", "key_differences": ["Leafminer damage consists of silvery, serpentine (winding) trails or 'mines' inside the leaf.", "Bacterial spot manifests as circular, necrotic spots, not linear trails.", "Leaves damaged by leafminers are often severely twisted, curled, and distorted, which is not a primary symptom of bacterial spot."]}], "management": {"cultural": ["Prune trees to increase air circulation and promote faster drying of foliage.", "Avoid overhead irrigation; use drip or micro-sprinklers to keep leaves dry.", "Sanitize pruning equipment with a disinfectant between trees.", "Remove and destroy fallen leaves and pruned branches to reduce inoculum."], "biological": ["Some commercial products containing *Bacillus subtilis* or other beneficial microbes may help suppress the pathogen when applied preventatively."], "chemical": ["Apply copper-based bactericides preventatively, especially before rainy seasons, to protect new growth.", "Repeat applications may be necessary according to label instructions during periods of high disease pressure."], "notes": "Management is focused on prevention. Once infection occurs, chemical sprays primarily serve to protect uninfected tissue, not to cure existing lesions."}, "qa_seeds": {"verification_templates": ["Are there small, dark, circular spots on the lemon leaves?", "Is there a distinct yellow halo around the dark leaf spots?", "Do the spots on the leaves look flat and greasy rather than raised and corky?", "Are there any sunken, dark pits on the skin of the lemon fruit?", "Is this lemon tree showing signs of premature leaf drop associated with leaf spots?"], "attribute_templates": ["What color are the spots on the leaves?", "Describe the border of the leaf lesions.", "What is the texture of the spots on the leaf surface?", "Are the spots distributed randomly or in a specific pattern on the leaf?", "What shape are the spots on the lemon rind?"], "diagnosis_templates": ["What disease causes flat, dark spots with yellow halos on lemon leaves?", "Based on the greasy-looking, non-raised leaf spots, what is wrong with this plant?", "Is this bacterial spot or bacterial canker, given the flat lesions?"], "counterfactual_templates": ["If the spots were raised and had a corky, crater-like texture, what disease would it be instead?", "If the leaf damage was a silvery, winding trail, what would be the cause?"], "severity_templates": ["What percentage of this leaf's surface is covered in dark spots?", "Would you classify the infection on this leaf as mild, moderate, or severe?", "How many lesions are visible on this single lemon fruit?"], "confounders": ["bacterial_canker", "nutritional_deficiency", "citrus_leafminer"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.25, "lighting_notes": "Use diffuse, even lighting. Avoid hard shadows or direct sun glare, which can obscure the 'greasy' appearance and yellow halos.", "occlusion_notes": "The primary symptomatic leaf or fruit should be clearly visible. At least one representative lesion should be in sharp focus and not obscured by other plant parts."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "N/A", "created_at": "2023-10-27T11:30:00Z", "updated_at": "2023-10-27T11:30:00Z", "sources": ["University extension guides for citrus diseases", "APS Compendium of Citrus Diseases", "General plant pathology diagnostic manuals"]}}
+{"schema_version": "1.0.0", "disease_id": "lemon.pest_insect.citrus_leafminer", "aliases": ["CLM", "lemon leafminer"], "crop": {"common_name": "lemon", "scientific_name": "Citrus limon", "family": "Rutaceae"}, "condition": {"common_name": "citrus leafminer", "scientific_name": "Phyllocnistis citrella", "alt_names": ["CLM"], "pathogen": {"type": "insect", "taxonomy": {"kingdom": "Animalia", "phylum": "Arthropoda", "class": "Insecta", "order": "Lepidoptera", "family": "Gracillariidae", "genus": "Phyllocnistis", "species": "citrella"}}}, "issue_type": "pest_insect", "transmission": {"vectors": ["Adult moths (oviposition)"], "dispersal": ["Adult moth flight", "Wind", "Movement of infested plant material"], "overwintering": ["Pupae in curled leaves or on bark"]}, "environmental_risk": {"risk_factors": ["Presence of new, tender leaf flushes", "Warm, humid conditions", "Lack of natural enemies"], "temp_c_day": [20, 32], "temp_c_night": [], "relative_humidity_pct": [60, 90], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Fewer than 25% of new flush leaves show mining trails; minimal leaf curling.", "moderate": "25-75% of new flush leaves show mining trails; noticeable leaf curling and distortion is present.", "severe": "Over 75% of new flush leaves are mined, with significant leaf curling, distortion, and stunting of new growth.", "notes": "Severity is assessed on new, tender growth (leaf flushes), as citrus leafminers primarily attack young leaves. The percentage refers to the proportion of newly emerged leaves that are affected."}, "symptoms": {"leaves": ["Presence of serpentine or meandering, silvery or whitish trails (mines) on the leaf surface.", "A dark, thin line of frass (excrement) is visible running down the center of the mine.", "Affected leaves become curled, twisted, or distorted, especially at the margins.", "Mines are most common on the underside of young, tender leaves but can appear on the top surface.", "At the end of a mature mine, the leaf edge may be curled over to protect the pupal chamber.", "Older, hardened leaves are not attacked.", "Severe infestations cause new growth to appear stunted and crinkled.", "Mined areas may turn brown and necrotic over time."], "stems": ["Mines may occasionally extend onto young, green, and tender stems."], "fruit": ["Mines can appear on the rind of young fruit, causing silvery, scarred patterns, though this is less common than on leaves."], "roots": [], "whole_plant": ["Stunted growth of new flushes in young trees under heavy infestation."], "signs_microscopic_or_visible": ["Tiny, translucent larvae may be visible inside the mine if held up to the light.", "Small, white adult moths (approx. 4mm) with fringed wings may be seen at dusk or dawn near new growth."]}, "lookalikes": [{"condition_name": "leaf_curl", "condition_id": "lemon.disease.leaf_curl", "key_differences": ["Leaf curl causes uniform puckering or downward curling of the entire leaf blade, without any silvery mines.", "Citrus leafminer damage is characterized by distinct, winding trails inside the leaf tissue.", "Leaf curl is often caused by aphids (which may be visible) or specific diseases, not an internal larva."]}, {"condition_name": "bacterial_canker", "condition_id": "lemon.disease.bacterial_canker", "key_differences": ["Bacterial canker produces raised, corky, tan-to-brown lesions, often with a water-soaked or yellow halo.", "Citrus leafminer creates internal, serpentine mines that are silvery and not raised.", "Canker lesions can appear on older leaves, stems, and fruit, while leafminer strongly prefers new leaf flushes."]}, {"condition_name": "nutritional_deficiency", "condition_id": "lemon.nutritional_deficiency.generic", "key_differences": ["Nutritional deficiencies cause symmetrical chlorotic patterns, often related to leaf venation (e.g., 'inverted V' for magnesium deficiency).", "Citrus leafminer damage is a highly asymmetrical, wandering trail with no relation to leaf veins.", "Deficiency patterns affect multiple leaves of a similar age in a consistent way, whereas mines are randomly placed on individual leaves."]}], "management": {"cultural": ["Avoid excessive pruning during peak moth activity to limit the production of vulnerable new flushes.", "Do not apply high-nitrogen fertilizers that stimulate excessive, tender growth.", "Encourage natural predators by avoiding broad-spectrum insecticides."], "biological": ["Conservation of parasitic wasps (e.g., Ageniaspis citricola) that attack leafminer larvae.", "Introduction of generalist predators like lacewings and predatory beetles."], "chemical": ["Application of horticultural oils or neem oil can deter egg-laying by adult moths.", "Use of systemic insecticides (e.g., imidacloprid) as a soil drench for young, non-bearing trees.", "Foliar sprays with targeted insecticides (e.g., spinosad, abamectin) during new flush periods."], "notes": "Management in mature, established trees is often unnecessary as the damage is primarily cosmetic. Control efforts should be focused on young, newly planted trees where heavy infestations can stunt growth and shaping."}, "qa_seeds": {"verification_templates": ["Does this lemon leaf show serpentine mining trails?", "Is there evidence of a citrus leafminer infestation on this plant?", "Can you see a silvery, winding line inside the leaf?", "Are the leaves on this lemon tree curled and distorted due to mining?", "Is a dark line of frass visible within the mine on this leaf?", "Does this plant have citrus leafminer?"], "attribute_templates": ["What is the primary symptom visible on this leaf?", "Describe the shape of the damage on the leaf surface.", "What color are the trails left by the pest?", "Are the damaged leaves young and tender or old and hardened?", "Besides the mines, how else is the leaf's shape affected?", "Where on the leaf are the mines located?"], "diagnosis_templates": ["What pest is causing the silvery, winding trails on this lemon leaf?", "Based on the leaf curling and serpentine mines, what is the likely issue?", "I see twisted leaves with tracks inside them. What is wrong with my lemon tree?"], "counterfactual_templates": ["If the leaf had raised brown spots instead of internal mines, what could it be?", "What would this leaf look like if the damage was from a nutritional deficiency instead of a leafminer?"], "severity_templates": ["How severe is the citrus leafminer infestation on this new flush?", "Is this a mild, moderate, or severe case of citrus leafminer?", "What percentage of the new leaves appear to be affected by leafminer?"], "confounders": ["leaf_curl", "nutritional_deficiency", "bacterial_canker"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Even, diffuse lighting is best. Backlighting can help visualize the larva or frass line within the mine. Avoid harsh shadows that obscure the trail.", "occlusion_notes": "The key symptom (mine) must be clearly visible. Occlusion by other leaves is acceptable if at least one complete mine is shown on an affected leaf."}, "provenance": {"created_by": "Expert Plant Pathologist and VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["University of California IPM Program", "APS Compendium of Citrus Diseases", "General entomology and university extension guides"]}}
+{"schema_version": "1.0.0", "disease_id": "lemon.unknown.leaf_curl", "aliases": ["citrus leaf curl", "lemon leaf distortion", "leaf puckering"], "crop": {"common_name": "lemon", "scientific_name": "Citrus limon", "family": "Rutaceae"}, "condition": {"common_name": "leaf curl", "scientific_name": "", "alt_names": ["leaf distortion", "leaf puckering"], "pathogen": {"type": "unknown", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "unknown", "transmission": {"vectors": ["aphids", "whiteflies"], "dispersal": ["insect movement", "wind"], "overwintering": ["on alternate hosts", "as eggs on woody tissue", "in infected plant debris"]}, "environmental_risk": {"risk_factors": ["rapid new growth (flush)", "high aphid populations", "mild, humid weather", "drought stress"], "temp_c_day": [18, 28], "temp_c_night": [], "relative_humidity_pct": [60, 90], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaves on the plant are curled or distorted.", "moderate": "11-40% of leaves are affected, with some stunting of new shoots.", "severe": ">40% of leaves are curled, with significant stunting and reduced plant vigor.", "notes": "Severity is assessed as the percentage of total leaves on the plant showing curling, twisting, or distortion symptoms. Symptoms are often most prominent on new growth."}, "symptoms": {"leaves": ["Leaves curl downwards or upwards along the midrib.", "Affected leaves appear thickened, puckered, or blistered.", "Leaf color may be pale green or yellowish.", "Young, developing leaves are the most commonly and severely affected.", "Leaves may be smaller than normal size.", "A sticky 'honeydew' or black sooty mold may be present on the leaf surface if caused by insects."], "stems": ["Internodes on new shoots may be shortened, leading to a 'rosette' appearance.", "Affected shoots may appear stunted or twisted."], "fruit": ["Fruit production and quality may be reduced on severely affected branches."], "roots": [], "whole_plant": ["Overall plant vigor is reduced, especially in young trees."], "signs_microscopic_or_visible": ["Small insects (e.g., aphids) may be visible in clusters on the underside of new leaves or on stems."]}, "lookalikes": [{"condition_name": "citrus leafminer", "condition_id": "lemon.pest.citrus_leafminer", "key_differences": ["Leafminer damage appears as silvery, serpentine 'tunnels' or 'mines' inside the leaf tissue, which are absent in leaf curl.", "Leafminer causes a tight rolling or folding of the leaf margin over the mine, distinct from the broader puckering or cupping of leaf curl.", "Small larvae can be seen inside the translucent mines upon close inspection."]}, {"condition_name": "nutritional deficiency", "condition_id": "lemon.abiotic.nutritional_deficiency", "key_differences": ["Nutrient deficiencies often cause distinct, often symmetrical, chlorosis patterns (e.g., interveinal yellowing, mottled patterns) that may or may not be accompanied by curling.", "Leaf distortion from deficiencies (e.g., zinc) often results in abnormally small, narrow leaves ('little leaf') rather than the puckering and blistering typical of pest/pathogen-induced curl.", "Deficiency symptoms typically appear uniformly on either old or new growth, depending on the nutrient, whereas pest-induced curl is often patchily distributed on the newest flush."]}], "management": {"cultural": ["Monitor new growth for sap-sucking insects like aphids, especially in spring.", "Prune and destroy heavily affected shoots to reduce inoculum or pest load.", "Maintain consistent watering and balanced nutrition to promote plant vigor and reduce stress.", "Encourage natural predators like ladybugs and lacewings by avoiding broad-spectrum insecticides."], "biological": ["Introduce or conserve beneficial insects such as lacewings, lady beetles, and parasitic wasps."], "chemical": ["Apply insecticidal soaps or horticultural oils to control aphid populations, ensuring thorough coverage of leaf undersides.", "If pest pressure is severe, consider targeted systemic or contact insecticides, following all label directions."], "notes": "The primary management step is to identify the cause. If pests like aphids are present, focus on their control. If no pests are visible, evaluate for environmental stressors like drought or waterlogging."}, "qa_seeds": {"verification_templates": ["Is the leaf blade curled or twisted?", "Does the leaf surface appear puckered or blistered?", "Are the affected leaves primarily on new shoots?", "Is the overall shape of the leaf distorted?", "Are there any insects visible on the underside of the curled leaves?", "Is there any sticky residue or black sooty mold on the leaves?"], "attribute_templates": ["What is the direction of the leaf curl (upward, downward, or to the side)?", "Describe the texture of the curled leaf surface.", "What color are the curled leaves compared to healthy ones?", "Are there any visible signs like insects or sooty mold on or near the curled leaves?", "Which part of the plant shows the most severe curling (new shoots, older leaves)?"], "diagnosis_templates": ["Based on the puckering and downward curl of the new leaves, what is the likely condition?", "The plant shows stunted new shoots with small, distorted leaves. What is the diagnosis?", "Is this lemon leaf showing signs of leaf curl?"], "counterfactual_templates": ["If this leaf had a silvery, winding trail inside it, what would the condition be instead of leaf curl?", "What would this look like if it were a nutritional deficiency with interveinal yellowing instead of leaf curl?"], "severity_templates": ["What percentage of the leaves on this plant are affected by leaf curl?", "How would you rate the severity of this leaf curl on a scale of mild, moderate, or severe?"], "confounders": ["citrus_leafminer", "nutritional_deficiency"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Use diffuse, bright, and even lighting. Avoid harsh shadows or direct sunlight that can obscure leaf texture and color.", "occlusion_notes": "Ensure the symptomatic leaves are in clear view and not heavily obscured by other leaves or branches. A view of the leaf underside is beneficial."}, "provenance": {"created_by": "VQA Dataset Designer (Plant Pathology Expert)", "reviewed_by": "VQA Dataset Designer (Plant Pathology Expert)", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University Extension Plant Disease Guides", "APS Compendium of Citrus Diseases", "General Plant Pathology Textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "lemon.healthy.healthy", "aliases": ["normal lemon", "unaffected lemon", "asymptomatic lemon"], "crop": {"common_name": "lemon", "scientific_name": "Citrus limon", "family": "Rutaceae"}, "condition": {"common_name": "healthy", "scientific_name": "", "alt_names": ["normal", "unaffected", "asymptomatic"], "pathogen": {"type": "none", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "healthy", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Optimal growing conditions", "Adequate sunlight (6-8+ hours/day)", "Proper irrigation and well-drained soil", "Balanced nutrition"], "temp_c_day": [21, 30], "temp_c_night": [13, 21], "relative_humidity_pct": [50, 70], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Not applicable. Plant is either healthy or shows symptoms.", "moderate": "Not applicable.", "severe": "Not applicable.", "notes": "For a 'healthy' state, severity is binary. The plant either shows no signs of disease, pest, or disorder (healthy), or it shows one or more symptoms (not healthy). Any visible symptom would disqualify the 'healthy' label."}, "symptoms": {"leaves": ["Uniformly deep green color, with new growth being a lighter green.", "Glossy, waxy upper surface.", "Lanceolate or ovate shape, typical for the cultivar, with smooth or slightly serrated margins.", "Absence of spots, lesions, discoloration, or distortion.", "Veins are a similar or slightly lighter green than the leaf blade.", "Petioles are firm and may have small 'wings'."], "stems": ["Stems and branches are firm and turgid.", "Color ranges from green on new growth to brown and woody on older branches.", "Absence of cankers, gummosis (oozing), splits, or dieback."], "fruit": ["If present, fruit is firm with a bright, uniform yellow rind (when mature).", "Fruit surface is free of blemishes, sunken spots, scabs, or signs of rot."], "roots": [], "whole_plant": ["Vigorous, dense canopy of leaves.", "Exhibits signs of new growth (flushes) during the growing season."], "signs_microscopic_or_visible": ["Absence of any fungal growth (e.g., mycelium, spores), bacterial ooze, insect frass, webbing, or other foreign structures."]}, "lookalikes": [{"condition_name": "Nutritional Deficiency", "condition_id": "lemon.nutritional.nutritional_deficiency", "key_differences": ["Healthy leaves are uniformly green, while deficient leaves show distinct chlorosis patterns like yellowing between veins (interveinal), mottling, or pale new growth.", "Healthy leaves are full-sized and well-shaped, whereas some deficiencies cause stunted, small, or narrow 'strappy' leaves.", "Healthy plant growth is vigorous; deficiencies often result in reduced vigor and sparse foliage."]}, {"condition_name": "Citrus Leafminer", "condition_id": "lemon.pest.citrus_leafminer", "key_differences": ["Healthy leaves have a smooth, undamaged surface. Leafminer damage appears as silvery, serpentine (winding) trails or 'mines' within the leaf tissue.", "Healthy new leaves are flat and well-formed. Leafminer activity causes severe curling, twisting, and distortion of new, tender leaves.", "Healthy leaves are clean, while mined leaves may contain visible dark specks of frass (insect excrement) inside the trails."]}, {"condition_name": "Bacterial Canker", "condition_id": "lemon.bacterial.bacterial_canker", "key_differences": ["Healthy tissue is smooth and unblemished. Canker presents as distinct, raised, corky lesions on leaves, stems, and fruit.", "Canker lesions on leaves are typically surrounded by a water-soaked margin and a bright yellow halo, both of which are absent on healthy leaves.", "Healthy fruit has a clean rind, while canker causes dark, crater-like, scabby spots on the fruit surface."]}], "management": {"cultural": ["Provide 6-8+ hours of direct sunlight daily.", "Use well-draining soil mixes to prevent waterlogging and root issues.", "Implement a balanced fertilization program tailored to citrus needs.", "Water deeply and allow the top layer of soil to dry out between waterings.", "Prune annually to remove dead wood and improve air circulation within the canopy."], "biological": [], "chemical": [], "notes": "Management for a healthy plant focuses on preventative care and providing optimal growing conditions to minimize stress and prevent the onset of diseases and pests."}, "qa_seeds": {"verification_templates": ["Does this image show a healthy lemon leaf?", "Is this lemon plant free of any disease or pest damage?", "Verify that the leaves are uniformly green and have no spots.", "Are there any signs of stress or damage on this plant?", "Does this lemon fruit appear normal and unblemished?"], "attribute_templates": ["What color are the leaves?", "Describe the texture of the leaf surface.", "Are there any spots, lesions, or blemishes on the leaves?", "Are the leaves flat or are they curled/distorted?", "Describe the overall condition of the plant's foliage.", "Is there any evidence of insect trails or mines on the leaves?"], "diagnosis_templates": ["What is the condition of this lemon plant?", "Does this lemon leaf have a disease?", "Is this plant healthy or sick?", "Identify any problems with the plant in the image."], "counterfactual_templates": ["If the leaves had silvery, winding trails, what would be the issue?", "What would you see on the leaves if this plant had a nitrogen deficiency?", "If this were bacterial canker instead of healthy, what would the spots look like?"], "severity_templates": ["What is the severity of the condition?", "What percentage of the leaf area is affected by symptoms?", "Rate the health of this plant on a scale from sick to healthy."], "confounders": ["Could this be a very mild nutritional deficiency?", "How can you distinguish this from a plant that has just been treated for a pest and the new growth is healthy?", "Is it possible this is a resistant cultivar that is not showing symptoms of a common disease?"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse lighting is ideal. Avoid harsh shadows or direct sunlight that can cause specular highlights (glare) and obscure true leaf color and texture.", "occlusion_notes": "The primary subject (leaf, stem, fruit) should be largely unoccluded. Minimal overlap with other plant parts is acceptable if key features remain visible."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Plant Pathologist", "created_at": "2024-05-21T11:00:00Z", "updated_at": "2024-05-21T11:00:00Z", "sources": ["University of California IPM guidelines for citrus", "APS Compendium of Citrus Diseases", "General horticulture and plant pathology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "lemon.disease_fungal.leaf_spot", "aliases": ["citrus greasy spot", "alternaria brown spot", "cercospora leaf spot"], "crop": {"common_name": "lemon", "scientific_name": "Citrus limon", "family": "Rutaceae"}, "condition": {"common_name": "leaf spot", "scientific_name": "Mycosphaerella citri", "alt_names": ["Greasy Spot"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Capnodiales", "family": "Mycosphaerellaceae", "genus": "Mycosphaerella", "species": "citri"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["wind-driven rain", "water splash", "airborne ascospores"], "overwintering": ["on fallen, decomposing leaves", "in lesions on living leaves and twigs"]}, "environmental_risk": {"risk_factors": ["high humidity", "prolonged leaf wetness", "warm temperatures", "dense canopy with poor air circulation"], "temp_c_day": [25, 32], "temp_c_night": [20, 25], "relative_humidity_pct": [90, 100], "leaf_wetness_hours_threshold": 8}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "< 5% of leaf area affected on symptomatic leaves.", "moderate": "5-25% of leaf area affected, some premature leaf drop may be visible.", "severe": "> 25% of leaf area affected, significant defoliation and yellowing.", "notes": "Severity is assessed on the most affected leaves in the image. It reflects the total area covered by lesions and any associated chlorosis (yellowing)."}, "symptoms": {"leaves": ["Initial symptoms appear as small, slightly raised, yellowish-brown blisters, typically on the underside of leaves.", "Lesions darken over time to become dark brown or black and may feel greasy or waxy.", "A corresponding yellow mottle or spot appears on the upper leaf surface directly above the lesion.", "Lesions are often circular or irregular, ranging from 1-5 mm in diameter.", "Multiple spots can coalesce to form larger, irregular blotches.", "Infected leaves often show premature yellowing (chlorosis), especially around the spots.", "Severe infections lead to significant premature leaf drop (defoliation), particularly of older leaves."], "stems": ["Stem lesions are not a typical symptom of most fungal leaf spots on lemon."], "fruit": ["Small, black, speckled blotches (greasy spot rind blotch) can appear on the fruit rind.", "Fruit symptoms are generally less common and less severe than leaf symptoms."], "roots": ["No direct symptoms on roots."], "whole_plant": ["Reduced vigor and a thinning canopy due to defoliation in chronic or severe cases."], "signs_microscopic_or_visible": ["Under moist conditions, fungal structures (e.g., pseudothecia) may develop in fallen leaf litter, appearing as tiny black specks."]}, "lookalikes": [{"condition_name": "bacterial canker", "condition_id": "lemon.disease_bacterial.bacterial_canker", "key_differences": ["Canker lesions are distinctly raised, corky, and often have a crater-like center, unlike the flatter, greasy fungal spots.", "Canker lesions are typically surrounded by a prominent, bright yellow halo and a water-soaked margin.", "Bacterial canker also causes significant lesions on stems and twigs, which is rare for fungal leaf spot."]}, {"condition_name": "nutritional deficiency", "condition_id": "lemon.disorder_abiotic.nutritional_deficiency", "key_differences": ["Deficiency symptoms create symmetrical patterns (e.g., interveinal chlorosis, inverted 'V'), not discrete, randomly scattered spots.", "Fungal spots are distinct lesions, whereas deficiencies are patterns of discoloration in the leaf tissue itself.", "Deficiency patterns often affect leaves of a certain age group uniformly (e.g., all new growth or all old growth)."]}, {"condition_name": "citrus leafminer", "condition_id": "lemon.pest_insect.citrus_leafminer", "key_differences": ["Leafminer damage appears as silvery, winding, serpentine trails (tunnels) within the leaf.", "Fungal leaf spot causes circular or irregular blotches, not linear trails.", "Leafminer damage causes severe twisting and curling of young, tender leaves."]}], "management": {"cultural": ["Prune the tree canopy to improve air circulation and promote faster drying of leaves.", "Rake and destroy fallen leaves to reduce the overwintering fungal inoculum.", "Use micro-sprinkler irrigation instead of overhead sprinklers to avoid wetting foliage.", "Maintain optimal plant health with balanced fertilization to improve natural resistance."], "biological": ["The use of commercial biological control agents is not a primary management strategy for this disease."], "chemical": ["Apply preventative fungicides, such as copper-based products or petroleum oils, before or during high-risk periods.", "Timing is critical; applications are often recommended during summer leaf flushes when leaves are most susceptible.", "Always consult local agricultural extension services for recommended products, rates, and spray schedules."], "notes": "An integrated approach combining cultural practices to reduce inoculum and environmental risk with timely chemical applications provides the most effective control."}, "qa_seeds": {"verification_templates": ["Is there a dark, greasy-looking spot on the underside of the lemon leaf?", "Can you see a yellow mottle on the top of the leaf that corresponds to a dark lesion on the bottom?", "Are there multiple small, dark brown or black spots scattered across the leaf surface?", "Does the leaf show signs of premature yellowing around the dark spots?", "Confirm that the lesions are relatively flat and not raised, corky, or crater-like."], "attribute_templates": ["What color are the spots on the leaf?", "Describe the texture of the spots.", "Are the spots surrounded by a yellow halo or general chlorosis?", "Have multiple spots merged to form larger blotches?", "What is the distribution of the spots on the leaf?", "Is the leaf also showing signs of curling or twisting?"], "diagnosis_templates": ["Based on the dark, greasy spots on the leaf underside and corresponding yellowing on top, what is the likely disease?", "What fungal disease is causing these small, dark, circular lesions and premature leaf drop on the lemon leaves?", "Given the symptoms, is this more likely a fungal leaf spot or bacterial canker?"], "counterfactual_templates": ["If the damage was a winding, silvery trail instead of a spot, what would be the cause?", "What would the symptoms look like if this were a nutritional deficiency instead of a fungal disease?", "If the spots were raised, corky, and had a crater-like center, what disease would you suspect?"], "severity_templates": ["What percentage of this leaf's surface is covered by spots?", "How would you rate the severity of the leaf spot infection on this leaf: mild, moderate, or severe?", "Is there evidence of significant defoliation that would indicate a severe infection?"], "confounders": ["bacterial_canker", "nutritional_deficiency", "citrus_leafminer"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Use even, diffuse lighting. Avoid harsh shadows or overexposure from direct sunlight, which can obscure lesion color, texture, and halos.", "occlusion_notes": "The primary symptomatic leaf should be in clear focus and not significantly obscured by other leaves, branches, or background clutter."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2024-05-21T10:00:00Z", "updated_at": "2024-05-21T10:00:00Z", "sources": ["University Extension Plant Disease Guides", "APS Compendium of Citrus Diseases", "General Plant Pathology Textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "lemon.nutrient_deficiency.nutritional_deficiency", "aliases": ["chlorosis", "nutrient imbalance", "micronutrient deficiency", "macronutrient deficiency"], "crop": {"common_name": "Lemon", "scientific_name": "Citrus limon", "family": "Rutaceae"}, "condition": {"common_name": "Nutritional Deficiency", "scientific_name": null, "alt_names": ["Iron deficiency", "Magnesium deficiency", "Zinc deficiency", "Nitrogen deficiency", "Manganese deficiency"], "pathogen": {"type": "abiotic", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "nutrient_deficiency", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Incorrect soil pH (too high or too low)", "Highly leached sandy soils", "Waterlogged or compacted heavy clay soils", "Drought conditions", "Competition from weeds for nutrients", "Improper fertilization"], "temp_c_day": [], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area shows chlorosis or mottling. Patterns are visible but not widespread on the plant.", "moderate": "11-40% of leaf area is affected. Chlorotic patterns are distinct and widespread on affected leaves; some stunting of new growth may be visible.", "severe": ">40% of leaf area is affected. Leaves are mostly yellow or white, with potential necrotic spots, leaf drop, and shoot dieback.", "notes": "Severity is assessed as the percentage of a symptomatic leaf's surface area showing characteristic chlorosis or mottling. The overall plant impact should also be considered."}, "symptoms": {"leaves": ["Yellowing of tissue between green veins (interveinal chlorosis), especially on young leaves (Iron, Manganese, Zinc).", "A distinct inverted 'V' shape of green at the leaf base, with the rest of the leaf yellowing, common on older leaves (Magnesium).", "Uniform pale green to yellow discoloration over the entire leaf, often starting with older, lower leaves (Nitrogen).", "Blotchy, irregular yellow areas between veins, creating a mottled appearance (Zinc, Manganese).", "In severe cases, veins may also lose color, and the entire leaf turns yellow or almost white.", "Affected young leaves may be smaller than normal (little leaf), narrow, or pointed (Zinc).", "Necrotic (brown, dead) spots may develop in severely chlorotic areas.", "Premature leaf drop."], "stems": ["Reduced internode length, leading to a 'rosette' appearance of leaves.", "Twig dieback in severe, chronic cases."], "fruit": ["Fruit may be smaller in size, have a paler rind color, and lower juice content.", "Some deficiencies can cause thick, puffy rinds."], "roots": [], "whole_plant": ["Stunted or reduced overall growth.", "Sparse, thin canopy due to reduced foliage and leaf drop."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "Citrus Leafminer", "condition_id": "lemon.pest_damage.citrus_leafminer", "key_differences": ["Leafminer damage consists of distinct, silvery, winding trails or tunnels inside the leaf.", "Nutrient deficiencies cause color patterns (mottling, chlorosis), not physical tunnels.", "A dark line of frass (insect excrement) is often visible inside leafminer tunnels.", "Leafminer damage causes severe twisting and curling of new leaves, which is more extreme than most deficiency symptoms."]}, {"condition_name": "Senescence or Dry", "condition_id": "lemon.other.senescence_or_dry", "key_differences": ["Senescence is a uniform, even yellowing of an entire older leaf before it drops, lacking the specific patterns (e.g., interveinal, inverted 'V') of many deficiencies.", "Drought stress causes wilting and a dull, grayish-green look before leaves turn yellow or brown and crispy, often from the margins inward.", "Deficiency patterns are typically symmetrical and related to the leaf's vein structure."]}, {"condition_name": "Leaf Spot", "condition_id": "lemon.fungal_disease.leaf_spot", "key_differences": ["Leaf spots are discrete, defined lesions, often circular with a distinct border, unlike the diffuse mottling or chlorosis of a deficiency.", "Leaf spot lesions may have a different colored center (e.g., tan or grey) and a dark border.", "Nutrient deficiency symptoms are patterns of discoloration, not localized, necrotic spots."]}], "management": {"cultural": ["Conduct regular soil tests and leaf tissue analysis to determine pH and specific nutrient levels.", "Adjust soil pH to the optimal range for citrus (6.0-6.5) to maximize nutrient availability.", "Apply a balanced, slow-release fertilizer formulated for citrus.", "Incorporate organic matter such as compost to improve soil health and nutrient holding capacity.", "Ensure proper irrigation to prevent drought stress, which can inhibit nutrient uptake."], "biological": [], "chemical": ["For rapid correction, apply foliar sprays containing the deficient micronutrient (e.g., chelated iron, zinc sulfate, manganese sulfate).", "Apply soil amendments or fertilizers to correct the specific deficiency identified by testing.", "Use acidifying fertilizers (like ammonium sulfate) if soil pH is too high."], "notes": "Foliar sprays offer a quick but temporary solution. Long-term management requires addressing the underlying soil issue (e.g., pH, nutrient imbalance)."}, "qa_seeds": {"verification_templates": ["Does this leaf show yellowing between the veins while the veins themselves remain green?", "Is there a distinct, symmetrical pattern of discoloration on this lemon leaf?", "Can you see an inverted green 'V' at the base of this otherwise yellow leaf?", "Is the primary symptom a uniform pale-green or yellow color across the whole leaf?", "Are the younger leaves smaller than normal and showing blotchy yellow areas?"], "attribute_templates": ["What is the pattern of yellowing on the leaf?", "Are the veins a different color than the rest of the leaf tissue?", "Describe the main color symptom on this leaf.", "Which leaves appear to be most affected, the old ones or the new ones?", "How would you describe the shape of the chlorotic areas?"], "diagnosis_templates": ["What abiotic disorder is causing this interveinal chlorosis?", "Based on the symptoms, is this lemon plant suffering from a nutritional deficiency?", "What is the likely cause of the mottled yellow pattern on these leaves?", "Can you diagnose the nutrient imbalance affecting this citrus plant?"], "counterfactual_templates": ["If this were damage from a leafminer pest, what visual sign would be present?", "What would this leaf look like if it were simply old and senescing, rather than nutrient deficient?", "How would the symptoms differ if this were a fungal leaf spot disease?"], "severity_templates": ["What percentage of this leaf's surface is affected by chlorosis?", "Based on the extent of yellowing, would you classify this deficiency as mild, moderate, or severe?", "How severe is the nutrient deficiency shown in the image?"], "confounders": ["citrus_leafminer", "senescence_or_dry", "leaf_spot"]}, "data_requirements": {"min_resolution_px": "600x600", "min_roi_fraction": 0.3, "lighting_notes": "Use diffuse, even lighting. Avoid harsh, direct sunlight and deep shadows which can obscure subtle color patterns like interveinal chlorosis.", "occlusion_notes": "The symptomatic leaf showing the clearest pattern should be fully or mostly visible. Minor occlusion from other leaves or stems is acceptable."}, "provenance": {"created_by": "Expert Plant Pathologist", "reviewed_by": "VQA Dataset Designer", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University extension guides for citrus nutrition", "APS Compendium of Citrus Diseases", "General plant pathology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "lemon.physiological_symptom.senescence_or_dry", "aliases": ["drought stress", "water stress", "leaf drying", "natural leaf aging"], "crop": {"common_name": "Lemon", "scientific_name": "Citrus limon", "family": "Rutaceae"}, "condition": {"common_name": "Senescence or Dry", "scientific_name": null, "alt_names": ["Drought stress", "Water stress", "Natural leaf aging"], "pathogen": {"type": "abiotic", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "physiological_symptom", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Insufficient or inconsistent watering", "Prolonged periods of drought", "High ambient temperatures and low humidity", "Poorly draining soil leading to root damage", "Container-grown plants becoming root-bound"], "temp_c_day": [30, 45], "temp_c_night": [], "relative_humidity_pct": [0, 40], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of total leaf area shows yellowing or browning, primarily on older, lower leaves. No significant wilting.", "moderate": "11-40% of total leaf area affected. Symptoms include noticeable leaf curling, wilting, and crisping of margins. Some premature leaf drop may occur.", "severe": ">40% of total leaf area is brown, dry, and brittle. Widespread wilting of stems and significant leaf drop, leading to a sparse canopy.", "notes": "Severity is assessed as the percentage of the plant's total foliage showing symptoms. The degree of wilting and leaf drop are also key indicators."}, "symptoms": {"leaves": ["Uniform yellowing (chlorosis) that lacks a distinct pattern, often starting on older leaves.", "Leaf margins and tips turn brown, become brittle, and feel dry or crispy.", "Leaves appear dull, wilted, or curled downwards.", "In severe cases, the entire leaf turns brown and desiccated.", "Premature shedding of leaves, particularly older ones."], "stems": ["Young, succulent stems may droop or wilt.", "In prolonged, severe cases, twig and branch dieback can occur."], "fruit": ["Fruit may fail to develop to full size.", "Premature fruit drop can occur under severe stress."], "roots": [], "whole_plant": ["The entire plant appears droopy, wilted, and lacks vigor.", "The plant canopy may look thin or sparse due to significant leaf loss."], "signs_microscopic_or_visible": ["Absence of any fungal structures (e.g., pustules, mycelium), bacterial ooze, or insect trails."]}, "lookalikes": [{"condition_name": "Nutritional Deficiency", "condition_id": "lemon.physiological_symptom.nutritional_deficiency", "key_differences": ["Nutrient deficiencies often create distinct patterns like interveinal chlorosis (green veins, yellow tissue) or specific yellowing of new vs. old leaves, while drought stress causes a more uniform yellowing or marginal browning.", "Leaves affected by drought stress are typically wilted and curled, which is less common for most nutrient deficiencies.", "Drought stress is often accompanied by a dry soil environment, whereas nutrient issues can occur even with proper watering."]}, {"condition_name": "Citrus Leafminer", "condition_id": "lemon.pest_damage.citrus_leafminer", "key_differences": ["Leafminer damage presents as silvery, serpentine trails (mines) within the leaf tissue; senescence does not create trails.", "Leafminer damage causes severe twisting and distortion of new, young growth, whereas drought stress typically affects older leaves first with wilting and browning.", "Small black specks of frass (insect excrement) may be visible within the leafminer trails."]}], "management": {"cultural": ["Provide deep, consistent watering, allowing the top layer of soil to dry out between sessions.", "Apply a 2-3 inch layer of organic mulch around the base of the plant to conserve soil moisture and regulate temperature.", "Ensure the plant is in well-draining soil to prevent root rot, which can impair water uptake.", "For potted plants, re-pot into a larger container if they become root-bound."], "biological": [], "chemical": ["In commercial settings, anti-transpirants may be applied before heatwaves to reduce water loss from leaves."], "notes": "The primary goal is to identify and correct the underlying cause of water stress, whether it is insufficient water, poor root health, or excessive water loss."}, "qa_seeds": {"verification_templates": ["Does the leaf show uniform yellowing?", "Are the edges of the leaf brown and crispy?", "Is the overall plant posture wilted or droopy?", "Can you see any signs of premature leaf drop on or around the plant?", "Are the symptoms generalized across the leaf surface rather than forming discrete spots?"], "attribute_templates": ["What is the primary color of the affected leaf?", "Describe the texture of the leaf margin.", "Are the symptoms more visible on older or younger leaves?", "Is the leaf curled or flat?", "How would you describe the overall health of the plant canopy?"], "diagnosis_templates": ["Given the crispy brown edges and general wilting, what is the likely physiological issue?", "What abiotic stress causes uniform yellowing and leaf drop in lemon plants?", "Is this plant more likely suffering from a disease or from a lack of water?"], "counterfactual_templates": ["If this were a fungal leaf spot, what different visual sign would you expect to see on the leaf?", "If this damage was caused by citrus leafminer, what kind of pattern would be visible inside the leaf?"], "severity_templates": ["What percentage of this leaf's area is brown and dry?", "Based on the widespread leaf drop, is this a mild, moderate, or severe case of drought stress?", "Is the damage confined to a single branch or is it affecting the entire plant?"], "confounders": ["Could the yellowing be a sign of nitrogen deficiency?", "Is it possible the leaf curling is caused by leafminers?", "Could this be confused with salt burn, which also causes brown leaf margins?"]}, "data_requirements": {"min_resolution_px": 480, "min_roi_fraction": 0.3, "lighting_notes": "Use diffuse, even lighting. Avoid harsh, direct sunlight which can create deep shadows and wash out the yellow and brown coloration.", "occlusion_notes": "The symptomatic leaf, especially its margins and tip, should be clearly visible and not obscured by other leaves or branches."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["General university extension guides for citrus care", "APS Compendium of Citrus Diseases", "Published literature on abiotic stress in plants"]}}
+{"schema_version": "1.0.0", "disease_id": "litchi.disease_fungal.black_spot", "aliases": ["anthracnose", "pepper spot"], "crop": {"common_name": "litchi", "scientific_name": "Litchi chinensis", "family": "Sapindaceae"}, "condition": {"common_name": "black spot", "scientific_name": "Colletotrichum gloeosporioides", "alt_names": ["anthracnose"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Sordariomycetes", "order": "Glomerellales", "family": "Glomerellaceae", "genus": "Colletotrichum", "species": "gloeosporioides"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": ["insects (e.g., fruit flies, mites)"], "dispersal": ["rain splash", "wind-driven rain", "irrigation water", "contaminated pruning tools"], "overwintering": ["infected twigs and branches", "mummified fruit", "leaf debris on the orchard floor"]}, "environmental_risk": {"risk_factors": ["high humidity", "prolonged leaf and fruit wetness", "frequent rainfall during flowering and fruit development", "poor air circulation due to dense canopy", "temperatures between 25-30°C"], "temp_c_day": [25, 30], "temp_c_night": [], "relative_humidity_pct": [90, 100], "leaf_wetness_hours_threshold": 12}, "severity_rubric": {"unit": "qualitative", "mild": "A few small, isolated black spots (<5% of fruit surface area), not coalescing. Fruit is likely still marketable.", "moderate": "Multiple spots, some beginning to coalesce, covering 5-25% of the fruit surface. Minor skin cracking may be present.", "severe": "Large, coalesced black lesions covering >25% of the fruit surface, often with significant skin cracking, secondary rot, and visible spore masses.", "notes": "Severity is primarily assessed on fruit due to economic impact. A single large lesion can make a fruit unmarketable. On leaves, percent area can be used as a proxy."}, "symptoms": {"leaves": ["Small, circular, dark brown to black spots, sometimes surrounded by a yellow halo.", "Lesions can enlarge and merge, forming irregular necrotic patches.", "In older lesions, the necrotic center may dry and fall out, creating a 'shot-hole' effect.", "Symptoms are often more prevalent on mature or older leaves."], "stems": ["Elongated, sunken, dark brown to black cankers can form on young twigs.", "Severe cankers can girdle the stem, leading to dieback of the branch tip."], "fruit": ["Initial symptoms are small, water-soaked, brownish spots on the fruit skin (pericarp).", "Spots enlarge, turn black, become slightly sunken, and are typically circular.", "Under humid conditions, pinkish-orange, gelatinous spore masses (acervuli) may appear in the center of the spots.", "Lesions can coalesce to cover large areas, causing the skin to crack.", "The infection can penetrate the flesh, causing a bitter taste and fruit rot."], "roots": [], "whole_plant": ["Reduced fruit quality and marketability is the primary impact.", "Severe infections can lead to premature fruit drop."], "signs_microscopic_or_visible": ["Pink or salmon-colored gelatinous spore masses (acervuli) emerging from the center of lesions, especially on fruit under high humidity."]}, "lookalikes": [{"condition_name": "pest damage", "condition_id": "litchi.pest_damage.unknown", "key_differences": ["Pest damage often involves physical holes, chewing marks, or tunnels, which are absent in black spot.", "The presence of insect frass (excrement) or the insect itself indicates a pest issue.", "Pest damage patterns are often irregular or trail-like, unlike the typically circular fungal lesions.", "Some pests cause stippling (tiny discolored dots) rather than distinct, sunken black spots."]}, {"condition_name": "burned_leaf", "condition_id": "litchi.abiotic.burned_leaf", "key_differences": ["Sunburn or chemical burn typically appears as bleached, tan, or papery-textured patches, not distinct black spots.", "Burn damage is usually located on the most exposed plant parts and lacks the defined, circular margins of black spot lesions.", "Burned areas are not sunken and will not produce the pinkish spore masses seen in black spot under humid conditions."]}, {"condition_name": "red_rust_disease", "condition_id": "litchi.disease_algal.red_rust_disease", "key_differences": ["Red rust spots are raised and have a velvety, orange-red to reddish-brown texture.", "Black spot lesions are sunken and black or dark brown.", "Red rust does not cause fruit rot or produce pink spore masses."]}], "management": {"cultural": ["Prune trees annually to open the canopy, improving air circulation and light penetration.", "Remove and destroy infected plant material, including fallen fruit, leaves, and pruned branches.", "Use drip or micro-sprinkler irrigation instead of overhead sprinklers to minimize fruit and leaf wetness.", "Harvest fruit carefully to avoid wounding, which can be an entry point for the pathogen post-harvest."], "biological": ["Applications of products containing *Bacillus subtilis* or *Trichoderma* spp. can act as antagonists to the pathogen."], "chemical": ["Apply preventative fungicides during susceptible periods, such as from flowering to fruit maturation.", "Rotate fungicides with different modes of action (e.g., mancozeb, copper-based compounds, strobilurins) to prevent resistance.", "Post-harvest fungicidal dips can reduce storage rot."], "notes": "An integrated management strategy that combines cultural practices with timely fungicide applications is most effective for controlling black spot."}, "qa_seeds": {"verification_templates": ["Are there circular, black, sunken spots on the litchi fruit?", "Does the litchi leaf have dark brown or black spots with a yellow halo?", "Can you see any pink or orange-colored ooze in the center of the black spots on the fruit?", "Is the skin of the fruit cracking around the dark lesions?", "Are there any elongated, dark cankers on the young stems?"], "attribute_templates": ["What color are the spots on the [plant_part]?", "Are the lesions on the fruit raised or sunken?", "Describe the shape of the spots on the leaves.", "Is there a colored halo around the leaf spots?", "Have the individual spots on the fruit merged to form a large black patch?", "What is the texture of the spots on the fruit skin?"], "diagnosis_templates": ["What disease causes sunken black spots on litchi fruit, sometimes with pink spore masses?", "Based on the circular black spots on the leaves and rotting fruit, what is the diagnosis?", "The litchi has symptoms of anthracnose. What is the likely disease?"], "counterfactual_templates": ["If the spots on the leaves were raised and reddish-orange, what could it be instead of black spot?", "If the damage was a large, bleached, papery area on the fruit, would it still be black spot?", "If you found a caterpillar and chewing marks near the damage, what would be a more likely cause?"], "severity_templates": ["What percentage of this fruit's surface is covered by black spots?", "Based on the number and size of the lesions, would you classify this infection as mild, moderate, or severe?", "Are the black spots on the fruit still small and separate, or have they started to coalesce?"], "confounders": ["pest_damage", "burned_leaf", "red_rust_disease"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.4, "lighting_notes": "Use diffuse, even lighting. Avoid harsh shadows or overexposure from direct sun, which can obscure lesion details like color, texture, and the presence of spore masses.", "occlusion_notes": "The affected fruit or leaf should be clearly visible. Ensure lesions are not obscured by other plant parts, hands, or debris. A clear view of the lesion margin is critical."}, "provenance": {"created_by": "AI Plant Pathologist", "reviewed_by": "Human Expert", "created_at": "2024-05-21T10:00:00Z", "updated_at": "2024-05-21T10:00:00Z", "sources": ["University extension guides on tropical fruit pathology", "APS Compendium of Tropical Fruit Diseases", "Peer-reviewed plant pathology journals"]}}
+{"schema_version": "1.0.0", "disease_id": "litchi.physiological_symptom.burned_leaf", "aliases": ["leaf scorch", "sunburn", "tip burn", "leaf tip burn"], "crop": {"common_name": "litchi", "scientific_name": "Litchi chinensis", "family": "Sapindaceae"}, "condition": {"common_name": "Burned Leaf", "scientific_name": null, "alt_names": ["Leaf scorch", "Sunburn", "Tip burn"], "pathogen": {"type": "abiotic", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "physiological_symptom", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["High solar radiation", "Sudden exposure of shaded leaves to direct sun", "Drought stress and inadequate irrigation", "High ambient temperatures", "Low relative humidity", "Saline soil or irrigation water", "Nutrient imbalances (e.g., potassium deficiency)"], "temp_c_day": [35, 45], "temp_c_night": [], "relative_humidity_pct": [20, 50], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area affected, typically confined to the tip or margin.", "moderate": "11-40% of leaf area affected, with necrotic areas extending further into the leaf blade.", "severe": ">40% of leaf area affected, extensive necrosis, leaf curling, and potential defoliation.", "notes": "Severity is estimated as the percentage of a single leaf's surface showing brown, necrotic, 'burned' tissue. Assessment should consider the average condition of several affected leaves on the plant."}, "symptoms": {"leaves": ["Necrotic, brown, or tan patches appear on leaf tips and margins.", "Affected tissue is dry, brittle, and has a 'scorched' appearance.", "A distinct, often dark brown or reddish-brown line separates the necrotic tissue from healthy green tissue.", "Damage is most prominent on leaves directly exposed to intense sunlight.", "In severe cases, the entire leaf may turn brown, curl inward, and die.", "Symptoms are more common on new, tender flushes of growth.", "The burned area is typically uniform in color, lacking fungal structures or concentric rings.", "The transition from dead to healthy tissue is abrupt."], "stems": [], "fruit": [], "roots": [], "whole_plant": ["Symptoms are often localized to one side of the plant (the sun-facing side).", "Chronically affected plants may show stunted growth."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "leaf_blight", "condition_id": "litchi.fungal_disease.leaf_blight", "key_differences": ["Leaf blight lesions often have a 'target-like' appearance with concentric rings, which is absent in sunburn.", "Blight lesions may have a water-soaked or yellowish halo around the necrotic spot.", "Tiny black dots (pycnidia or acervuli) may be visible within blight lesions, especially with magnification.", "Blight can occur on any part of the leaf, not just sun-exposed tips and margins."]}, {"condition_name": "senescence_or_dry", "condition_id": "litchi.physiological_symptom.senescence_or_dry", "key_differences": ["Senescence involves a more gradual and uniform yellowing (chlorosis) of the entire leaf before browning, typically starting with the oldest, lowest leaves.", "Burned leaves show an abrupt transition from green to brown/necrotic tissue, often on leaves of any age.", "General water stress (dryness) causes wilting of leaves before they turn brown and crispy, often affecting the whole plant."]}, {"condition_name": "red_rust_disease", "condition_id": "litchi.algal_disease.red_rust_disease", "key_differences": ["Red rust appears as distinct, raised, velvety spots with an orange to reddish-brown color.", "Burned leaf areas are not raised or velvety; they are necrotic, sunken, and integrated into the leaf tissue.", "Red rust spots can appear anywhere on the leaf surface and are not confined to sun-exposed areas like tips and margins."]}], "management": {"cultural": ["Provide adequate and consistent irrigation to prevent drought stress.", "Use shade cloth (e.g., 30-50% shade) during periods of intense heat and sun, especially for young trees.", "Apply a layer of organic mulch to retain soil moisture and moderate root temperature.", "Avoid excessive nitrogen fertilization, which promotes tender growth susceptible to burning.", "Ensure proper soil drainage to prevent salt accumulation."], "biological": [], "chemical": ["Application of kaolin clay-based products can form a reflective white film on leaves to reduce heat load and sun damage.", "Anti-transpirant sprays can help reduce water loss from leaves during heat waves."], "notes": "Management is primarily preventative and focuses on mitigating environmental stressors that cause the burn."}, "qa_seeds": {"verification_templates": ["Does the leaf look scorched or burned at its tip or edges?", "Is there a brown, dry, and brittle area on the litchi leaf?", "Is the damage concentrated on the part of the plant most exposed to the sun?", "Is there a sharp, defined line between the brown area and the healthy green tissue?", "Are the affected areas uniform in color, without any spots or rings?"], "attribute_templates": ["Where on the leaf is the brown, dead tissue located?", "What is the texture of the affected part of the leaf?", "Describe the border between the damaged and healthy leaf areas.", "What color is the scorched area?", "Are there any raised structures or fuzzy growths on the brown patches?"], "diagnosis_templates": ["Why do my litchi leaves look like they have been burned?", "What is causing the tips and margins of my litchi leaves to turn brown and crispy?", "Based on the scorched leaf tips, what is wrong with my litchi tree?"], "counterfactual_templates": ["What would this look like if it were a fungal leaf blight instead of sunburn?", "If this was caused by salt damage from the soil, how might the symptoms be different?", "How would the symptoms differ if this was just an old leaf dying naturally?"], "severity_templates": ["What percentage of this leaf's area is burned?", "How severe is the leaf scorch on this plant?", "Is the leaf burn on this litchi mild, moderate, or severe?"], "confounders": ["leaf_blight", "senescence_or_dry", "red_rust_disease"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Use diffuse, even lighting. Avoid harsh direct sunlight or deep shadows, which can obscure the texture of the necrotic tissue and the definition of its border.", "occlusion_notes": "The symptomatic leaf, particularly the transition zone between healthy and burned tissue, should be clearly visible and not obscured by other leaves or branches."}, "provenance": {"created_by": "expert_plant_pathologist_vqa_designer", "reviewed_by": "expert_plant_pathologist_vqa_designer", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["General university extension guides on litchi cultivation", "APS Compendium of Tropical Fruit Diseases", "Peer-reviewed literature on abiotic stress in fruit trees"]}}
+{"schema_version": "1.0.0", "disease_id": "litchi.unknown.fungal_stripe_damage", "aliases": ["Litchi leaf stripe", "Fungal leaf stripe"], "crop": {"common_name": "Litchi", "scientific_name": "Litchi chinensis", "family": "Sapindaceae"}, "condition": {"common_name": "Fungal stripe damage", "scientific_name": "", "alt_names": ["Leaf stripe disease"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "unknown", "transmission": {"vectors": [], "dispersal": ["Wind", "Rain splash", "Contaminated pruning tools"], "overwintering": ["Infected leaf debris on the ground", "On persistent infected leaves on the tree"]}, "environmental_risk": {"risk_factors": ["High humidity (>85%)", "Prolonged periods of leaf wetness", "Poor air circulation within the canopy", "Dense plant spacing"], "temp_c_day": [20, 30], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 6}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of the total leaf area is affected by stripes.", "moderate": "11-40% of the leaf area is affected, with some stripes beginning to merge.", "severe": ">40% of the leaf area is affected, stripes have coalesced into large necrotic patches, and premature leaf drop may be occurring.", "notes": "Severity is assessed visually on the most affected leaves, estimating the proportion of the leaf's surface area covered by the characteristic stripes and any associated necrosis or chlorosis."}, "symptoms": {"leaves": ["Elongated, linear lesions or stripes that run parallel to the secondary leaf veins.", "Stripes are initially light brown or tan and darken to dark brown or black as they mature.", "Lesions often have a slightly sunken or depressed appearance.", "A narrow, yellowish halo may be visible around the edges of newer stripes.", "Multiple discrete stripes can occur on a single leaflet.", "In advanced stages, stripes may merge (coalesce) to form large, irregular necrotic areas.", "The tissue within the stripes becomes dry, brittle, and papery.", "Severe infections can lead to premature shedding of affected leaves."], "stems": [], "fruit": [], "roots": [], "whole_plant": ["Reduced plant vigor and photosynthetic capacity in cases of severe defoliation."], "signs_microscopic_or_visible": ["Under magnification and high humidity, tiny black dots (fungal fruiting bodies like pycnidia or acervuli) may be visible within the necrotic stripes."]}, "lookalikes": [{"condition_name": "Leaf Blight", "condition_id": "litchi.fungal.leaf_blight", "key_differences": ["Shape: Leaf blight causes large, irregular blotches, not long, narrow stripes.", "Location: Blight often starts at the leaf tip or margins and spreads inward, whereas stripes can appear anywhere on the leaf blade.", "Pattern: Blight lesions may exhibit concentric rings (a target-like appearance), which is absent in fungal stripe damage."]}, {"condition_name": "Pest Damage", "condition_id": "litchi.pest.pest_damage", "key_differences": ["Leaf miner damage appears as winding, serpentine tunnels within the leaf, not straight stripes.", "Damage from chewing insects results in holes or ragged leaf edges, not necrotic stripes.", "Sucking insects cause stippling (tiny discolored dots) or chlorotic spots, which are distinct from the elongated lesions of stripe damage."]}, {"condition_name": "Senescence or Dry", "condition_id": "litchi.abiotic.senescence_or_dry", "key_differences": ["Pattern: Drying or senescence often starts uniformly at the tip or edges (marginal necrosis) and progresses inward, lacking the distinct, parallel-vein stripe pattern.", "Color: Senescence is typically a uniform yellowing (chlorosis) or browning, without the distinct dark brown/black color of the fungal stripes.", "Distribution: Abiotic stress often affects older, lower leaves more symmetrically, while fungal stripes can appear more randomly on leaves of various ages."]}], "management": {"cultural": ["Prune trees to improve air circulation and sunlight penetration into the canopy.", "Avoid overhead irrigation; use drip or micro-sprinkler irrigation to keep foliage dry.", "Rake up and destroy fallen leaves and debris to reduce fungal inoculum.", "Maintain balanced plant nutrition to improve overall tree health and resilience."], "biological": ["Application of bio-fungicides containing *Bacillus subtilis* or *Trichoderma* spp. may provide some preventative benefit."], "chemical": ["Apply protective fungicides (e.g., copper-based, mancozeb) prior to or at the first sign of disease, especially during warm, wet weather.", "For systemic action, fungicides from the strobilurin or triazole groups can be effective, but rotation is crucial to prevent resistance.", "Always follow product label instructions for application rates, timing, and pre-harvest intervals."], "notes": "An integrated approach combining cultural practices with chemical control when necessary is the most effective strategy. Focus on prevention."}, "qa_seeds": {"verification_templates": ["Does this litchi leaf exhibit long, narrow stripes?", "Are there dark, linear lesions running parallel to the veins on this leaf?", "Can you confirm the presence of stripe-like damage on the foliage?", "Is this an example of fungal stripe damage?", "Is the main symptom on this leaf a stripe, not a spot or a blotch?"], "attribute_templates": ["What is the color of the stripes on the leaf?", "Are the lesions shaped like long stripes or irregular blotches?", "Do the stripes seem to follow the direction of the leaf's veins?", "Is there a yellow halo around the dark stripes?", "Describe the shape and orientation of the lesions on this leaf.", "How many stripes are visible on this single leaflet?"], "diagnosis_templates": ["What disease is causing these long, dark stripes on the litchi leaf?", "Based on the linear lesions, what is wrong with this plant?", "Can you identify the condition affecting this litchi leaf?", "What is the name of the disease characterized by these symptoms?"], "counterfactual_templates": ["If the lesions were large, circular spots with concentric rings, would it still be fungal stripe damage?", "What if the damage was a winding, silvery trail inside the leaf instead of a brown stripe on the surface?", "If the leaf was completely healthy with no marks, what would its condition be?"], "severity_templates": ["How severe is the fungal stripe damage on this leaf?", "What percentage of this leaf's surface is covered by stripes?", "Would you classify this infection as mild, moderate, or severe?"], "confounders": ["leaf_blight", "pest_damage", "senescence_or_dry"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Use even, diffuse light. Avoid hard shadows, overexposure, and direct sunlight, which can obscure the color and texture of the stripes.", "occlusion_notes": "The symptomatic leaf should be the main focus and largely unobscured by other leaves, branches, or background objects."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "N/A", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["General plant pathology compendia", "University extension guides for tropical fruit diseases", "Peer-reviewed literature on litchi pathology"]}}
+{"schema_version": "1.0.0", "disease_id": "litchi.unknown.pest_damage", "aliases": ["insect damage on litchi", "litchi mite damage", "litchi pest infestation"], "crop": {"common_name": "Litchi", "scientific_name": "Litchi chinensis", "family": "Sapindaceae"}, "condition": {"common_name": "Pest Damage", "scientific_name": "Varies by specific pest", "alt_names": ["Insect damage", "Mite damage", "Arthropod damage"], "pathogen": {"type": "arthropod", "taxonomy": {"kingdom": "Animalia", "phylum": "Arthropoda", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "unknown", "transmission": {"vectors": ["Adult or larval stages of insects", "Mites"], "dispersal": ["Flight of adult insects", "Wind dispersal (e.g., mites)", "Movement of infested plant material", "Rain splash"], "overwintering": ["As eggs, larvae, pupae, or adults in bark crevices, leaf litter, or soil"]}, "environmental_risk": {"risk_factors": ["Presence of new, tender flush growth", "Warm and humid conditions", "Lack of natural predators", "Monoculture planting"], "temp_c_day": [22, 35], "temp_c_night": [], "relative_humidity_pct": [60, 90], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "< 10% of leaf surface area shows feeding damage (chewing, stippling, mining).", "moderate": "10-30% of leaf surface area is affected; some leaf curling or distortion may be present.", "severe": "> 30% of leaf surface area is affected; significant defoliation, webbing, or branch dieback is visible.", "notes": "Assessment should be based on the average damage across the entire plant or a representative branch. Include physical removal of tissue, discoloration from feeding, and distortion."}, "symptoms": {"leaves": ["Irregular holes or chewed margins from feeding insects.", "Skeletonization, where only leaf veins remain, creating a lacy appearance.", "Tiny yellow or white dots (stippling) on the leaf surface, caused by piercing-sucking insects or mites.", "Leaves appear bronzed or silvery due to heavy stippling.", "Leaf curling, twisting, or other distortions.", "Presence of thin, silky webbing, particularly on the underside of leaves (indicative of spider mites).", "Shiny, sticky substance (honeydew) on leaves, often leading to sooty mold growth.", "Winding trails or tunnels within the leaf (leafminers)."], "stems": ["Small holes in bark from boring insects.", "Sawdust-like frass (insect excrement) pushed out of borer holes.", "Presence of small, immobile bumps (scale insects) on twigs and stems."], "fruit": ["Superficial scarring, blemishes, or scabs on the fruit skin.", "Boring holes, sometimes with frass, indicating internal feeding.", "Premature fruit drop."], "roots": [], "whole_plant": ["Stunted growth or reduced vigor.", "Dieback of twigs and branches in severe infestations."], "signs_microscopic_or_visible": ["Visible insects, caterpillars (larvae), or mites (may require a hand lens).", "Clusters of eggs, often on the underside of leaves.", "Webbing, frass, honeydew, or cast skins of insects."]}, "lookalikes": [{"condition_name": "Leaf Blight", "condition_id": "litchi.fungal.leaf_blight", "key_differences": ["Leaf blight causes distinct necrotic lesions, often with a yellow halo or concentric rings, not physically removed tissue.", "Blight lesions tend to spread and coalesce into large, dead patches, whereas chewing damage is typically holes or skeletonization.", "Pest damage may be accompanied by visible signs like insects, webbing, or frass, which are absent in fungal blight."]}, {"condition_name": "Burned Leaf", "condition_id": "litchi.abiotic.burned_leaf", "key_differences": ["Burned areas (sunscald or chemical burn) are typically large, continuous patches of bleached or brown tissue, not discrete holes or stippling.", "Burn damage often follows a pattern related to exposure, like on the upper leaf surface or leaf margins facing the sun.", "Pest damage like stippling consists of thousands of tiny dots, while burn damage is a solid area of discoloration."]}, {"condition_name": "White Spot", "condition_id": "litchi.fungal.white_spot", "key_differences": ["White spot consists of discrete, often circular, whitish to grey lesions with a defined border.", "Pest damage involves removal of tissue (holes) or discoloration from feeding (stippling), not well-defined fungal spots.", "Mite stippling can look whitish but is a collection of tiny pinpricks, not a solid lesion."]}], "management": {"cultural": ["Regularly monitor plants for early signs of pests.", "Prune and destroy heavily infested branches and leaves.", "Remove weeds and plant debris that can harbor pests.", "Ensure proper irrigation and fertilization to maintain plant vigor."], "biological": ["Conserve and encourage natural enemies like ladybugs, lacewings, and predatory mites.", "Release commercially available biological control agents where appropriate."], "chemical": ["Apply horticultural oils or insecticidal soaps for soft-bodied insects and mites.", "Use specific, targeted insecticides or miticides based on positive identification of the pest.", "Avoid broad-spectrum insecticides that harm beneficial insects."], "notes": "Accurate identification of the specific pest is critical for selecting the most effective and least harmful management strategy."}, "qa_seeds": {"verification_templates": ["Are there holes or chewed edges on the leaves?", "Can you see any fine webbing on the plant?", "Do the leaves have a pattern of tiny yellow or white dots (stippling)?", "Is there any leaf curling or distortion?", "Are there any insects, larvae, or eggs visible on the leaves or stems?", "Is there a sticky substance or black mold on the leaf surfaces?"], "attribute_templates": ["What type of damage is visible on the leaves?", "Describe the shape and distribution of the damage.", "What color are the damaged areas on the leaf?", "Are there any signs of pests, such as webbing, frass, or the pests themselves?", "Which part of the plant is most affected?", "Is the tissue missing or just discolored?"], "diagnosis_templates": ["What is causing the skeletonized appearance of the leaves?", "Based on the stippling and webbing, what is damaging this litchi plant?", "What kind of problem causes holes to appear in leaves?", "Why are the litchi leaves curled and distorted?"], "counterfactual_templates": ["If the damage was a large brown patch with a yellow halo, what might be the cause instead of a pest?", "What would this leaf look like if it were healthy?", "If the white marks were larger, circular spots instead of tiny dots, what could be the problem?"], "severity_templates": ["How severe is the pest infestation?", "What percentage of the leaf is damaged?", "Would you classify the damage as mild, moderate, or severe?"], "confounders": ["leaf_blight", "burned_leaf", "white_spot"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Use even, diffuse light. Avoid harsh shadows or direct sunlight that can obscure fine details like mite webbing, stippling, or small insects.", "occlusion_notes": "Ensure the primary symptoms are clearly visible and not heavily obscured by other leaves, branches, or background objects."}, "provenance": {"created_by": "expert_plant_pathologist", "reviewed_by": "expert_plant_pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University extension guides for litchi pest management", "APS Compendium of Tropical Fruit Diseases", "General entomology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "litchi.healthy.healthy", "aliases": ["normal", "asymptomatic", "undiseased"], "crop": {"common_name": "litchi", "scientific_name": "Litchi chinensis", "family": "Sapindaceae"}, "condition": {"common_name": "Healthy", "scientific_name": null, "alt_names": ["Normal Growth"], "pathogen": {"type": "none", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "healthy", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Optimal temperature and humidity", "Adequate sunlight and soil moisture", "Balanced soil nutrition", "Good air circulation"], "temp_c_day": [20, 33], "temp_c_night": [15, 25], "relative_humidity_pct": [60, 85], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "< 1% of leaf area shows any form of blemish or discoloration.", "moderate": "1-5% of leaf area shows minor, non-pathogenic blemishes (e.g., minor physical scuffing).", "severe": "> 5% of leaf area shows blemishes, indicating a likely transition to a diseased or disordered state.", "notes": "This rubric quantifies the 'healthy' state by measuring the absence of symptoms. A 'severe' rating under this rubric means the plant should be re-classified under a specific disease or disorder."}, "symptoms": {"leaves": ["Mature leaves are uniformly dark green with a glossy upper surface.", "New flush leaves are reddish-bronze or light green, and are tender.", "Leaves are turgid, firm, and well-formed with smooth margins.", "Leaf shape is typically lanceolate to elliptical.", "No spots, lesions, mosaics, pustules, or necrosis are visible.", "No signs of yellowing (chlorosis) or browning.", "No visible insect colonies, webbing, or frass."], "stems": ["Stems and branches are woody, with greyish-brown bark.", "No cankers, galls, cracks, or unusual swellings.", "No signs of dieback on young or old shoots."], "fruit": ["Fruit, when present, has a uniformly red, pink, or yellow-green skin (depending on cultivar and maturity).", "Fruit skin is intact, bumpy (tuberculate), and free from cracks, spots, or rot.", "Fruit is firm and well-sized for the cultivar."], "roots": [], "whole_plant": ["Exhibits vigorous growth with a dense, well-developed canopy.", "Shows normal flowering and fruit set in season."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "senescence_or_dry", "condition_id": "litchi.abiotic.senescence_or_dry", "key_differences": ["Healthy leaves are uniformly green and turgid, while senescent leaves are uniformly yellow or brown.", "Senescent leaves are often dry, brittle, and may curl, whereas healthy leaves are flexible and firm.", "Senescence typically affects the oldest leaves first, while healthy leaves are present across the plant's age gradient."]}, {"condition_name": "burned_leaf", "condition_id": "litchi.abiotic.burned_leaf", "key_differences": ["Healthy leaves have even coloration, while burned leaves have distinct, irregularly shaped brown or black necrotic patches.", "Burn damage is often concentrated on leaf margins, tips, or areas most exposed to the sun.", "The transition from healthy to necrotic tissue on a burned leaf is often sharp and clearly defined."]}, {"condition_name": "yellow_mosaic_virus", "condition_id": "litchi.virus.yellow_mosaic_virus", "key_differences": ["Healthy leaves are a solid, uniform green.", "Virus-infected leaves show a distinct pattern of yellow and green patches (mosaic, mottle, or blotches).", "The yellow patterns on infected leaves often contrast sharply with the green tissue and may be associated with veins.", "Infected leaves may also be stunted or deformed, which is not seen in healthy leaves."]}], "management": {"cultural": ["Provide balanced fertilization based on soil tests.", "Ensure proper irrigation to avoid water stress.", "Prune to maintain good air circulation through the canopy.", "Select a planting site with adequate sunlight and well-drained soil."], "biological": [], "chemical": [], "notes": "Management for a healthy plant focuses on preventative care and maintaining optimal growing conditions to prevent the onset of diseases and disorders."}, "qa_seeds": {"verification_templates": ["Is the leaf surface free of spots and lesions?", "Are the mature leaves a uniform green color?", "Does the leaf appear turgid and firm?", "Are there any signs of yellowing or browning on the leaf?", "Is the overall plant canopy full and vigorous?", "Are the leaf margins smooth and intact?"], "attribute_templates": ["What is the color of the mature leaves?", "Describe the texture of the upper leaf surface.", "What color are the new, young leaves?", "Are there any visible patterns or discolorations on the leaves?", "How would you describe the overall shape of the leaf?", "What is the condition of the leaf edges?"], "diagnosis_templates": ["Is this litchi plant healthy?", "Does this leaf show any symptoms of disease or stress?", "What is the condition of the litchi leaf shown in the image?"], "counterfactual_templates": ["If this leaf had red rust disease, what would you expect to see?", "What would this leaf look like if it were suffering from water stress (drought)?", "How would the appearance of this leaf differ if it were infected with yellow mosaic virus?"], "severity_templates": ["What percentage of the leaf area is completely free from blemishes?", "On a scale from 1 (severely diseased) to 5 (perfectly healthy), how would you rate this plant?", "Are there any blemishes on the leaf, even minor ones?"], "confounders": ["senescence_or_dry", "burned_leaf", "yellow_mosaic_virus", "pest_damage"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Diffuse, even lighting is ideal. Avoid harsh shadows, overexposure, and backlighting that obscure leaf color and texture.", "occlusion_notes": "The primary leaf or symptom of interest should be mostly unobstructed. Minor occlusion by other leaves or branches is acceptable."}, "provenance": {"created_by": "AI Plant Pathologist", "reviewed_by": "VQA Dataset Designer", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["General university extension guides for litchi cultivation", "Compendia of tropical fruit diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "litchi.disease_fungal.leaf_blight", "aliases": ["litchi anthracnose leaf blight", "pestalotiopsis leaf blight"], "crop": {"common_name": "litchi", "scientific_name": "Litchi chinensis", "family": "Sapindaceae"}, "condition": {"common_name": "leaf blight", "scientific_name": "Colletotrichum gloeosporioides, Pestalotiopsis spp.", "alt_names": ["anthracnose", "leaf spot"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Sordariomycetes", "order": "Glomerellales", "family": "Glomerellaceae", "genus": "Colletotrichum", "species": ""}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["rain splash", "wind-driven rain", "contaminated pruning tools", "infected nursery stock"], "overwintering": ["infected plant debris on the ground", "cankers on twigs and branches", "mummified fruit"]}, "environmental_risk": {"risk_factors": ["prolonged leaf wetness (>8 hours)", "high relative humidity", "warm temperatures", "dense canopy with poor air circulation", "new, tender leaf flushes"], "temp_c_day": [24, 30], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 8}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of the leaf surface is covered in lesions. Spots are few and mostly discrete.", "moderate": "11-40% of the leaf surface is affected. Multiple lesions are present, some may be coalescing.", "severe": ">40% of the leaf surface is necrotic. Large blighted areas are present, often leading to leaf distortion and defoliation.", "notes": "Severity is estimated based on the percentage of symptomatic leaf area on a representative leaf or branch. It reflects the total area covered by lesions, not just the number of lesions."}, "symptoms": {"leaves": ["Begins as small, circular or irregular, water-soaked spots on young leaves.", "Spots enlarge to become tan, light brown, or dark brown necrotic lesions.", "Lesions often develop a distinct, dark brown or purplish-black border.", "A yellow halo may surround the necrotic spot.", "Multiple lesions frequently merge (coalesce) to form large, irregular dead patches, creating a 'blighted' appearance.", "The center of older lesions may become gray or tan and drop out, creating a 'shot-hole' effect.", "Severely infected leaves become twisted, curled, and may fall off prematurely.", "Under humid conditions, tiny pinkish-orange spore masses (acervuli) may be visible in concentric rings within the lesions."], "stems": ["On young, green twigs, can cause elongated, sunken, dark-colored lesions (cankers).", "Severe infection can lead to twig dieback from the tip downwards."], "fruit": ["Can infect flowers, causing blossom blight and poor fruit set.", "On fruit, appears as small, dark, sunken spots that can enlarge and lead to rot (anthracnose)."], "roots": [], "whole_plant": ["In severe cases, the tree shows significant defoliation, reduced vigor, and a sparse canopy."], "signs_microscopic_or_visible": ["Pinkish to orange gelatinous spore masses (acervuli) emerging from the center of lesions during wet weather."]}, "lookalikes": [{"condition_name": "burned_leaf", "condition_id": "litchi.abiotic.burned_leaf", "key_differences": ["Burn damage is typically confined to leaf tips and margins, appearing as uniform tan/brown necrosis.", "Leaf blight lesions are distinct spots that can appear anywhere on the leaf blade, not just the edges.", "Burned areas lack the characteristic dark borders, yellow halos, or fungal spore masses seen in blight.", "Burn damage often follows a pattern related to exposure (e.g., sun-facing side of the tree), while blight is driven by moisture."]}, {"condition_name": "senescence_or_dry", "condition_id": "litchi.abiotic.senescence_or_dry", "key_differences": ["Senescence involves uniform yellowing (chlorosis) of the entire leaf, usually starting with older, lower leaves.", "Drought stress causes wilting followed by browning from the tip/margins inward, without discrete spots.", "Leaf blight presents as localized, well-defined necrotic spots or patches, not a gradual, uniform discoloration of the whole leaf."]}, {"condition_name": "red_rust_disease", "condition_id": "litchi.disease_algal.red_rust_disease", "key_differences": ["Red rust spots are distinctly raised, velvety in texture, and orange to reddish-brown in color.", "Leaf blight lesions are sunken or flat, necrotic (tan to black), and not velvety.", "Red rust spots tend to remain as small, discrete circular patches, whereas blight lesions can expand and coalesce into large, irregular shapes."]}], "management": {"cultural": ["Prune trees annually to remove dead wood and open the canopy for better air circulation and light penetration.", "Collect and destroy fallen leaves and pruned branches to reduce pathogen inoculum.", "Use drip or micro-sprinkler irrigation instead of overhead sprinklers to keep foliage dry.", "Maintain balanced plant nutrition to promote tree vigor and resistance."], "biological": ["Applications of products containing *Bacillus subtilis* or *Trichoderma* spp. may help suppress the pathogen as part of an integrated management program."], "chemical": ["Apply protective fungicides (e.g., copper-based products, mancozeb) prior to periods of high risk (e.g., rainy season, new leaf flush).", "Systemic fungicides may be used for curative action but should be rotated to prevent resistance."], "notes": "Consult local agricultural extension services for recommended fungicides and optimal application timing for your region."}, "qa_seeds": {"verification_templates": ["Does this litchi leaf have any distinct brown or black spots?", "Are there large, dead, blighted areas on the leaf?", "Can you see a dark border or a yellow halo around the spots?", "Do multiple spots on the leaf appear to be merging together?", "Are the spots circular or irregular in shape?", "Is the center of any spot a different color, like gray or tan?"], "attribute_templates": ["What color are the lesions on the leaf?", "Describe the shape of the spots.", "Is there a border around the necrotic areas? If so, what color is it?", "Are the lesions flat, sunken, or raised?", "Where on the leaf are the spots located: tip, margin, or scattered across the blade?", "Do the lesions show any signs of concentric rings or tiny dots in the center?"], "diagnosis_templates": ["Based on the coalescing brown spots with dark margins, what disease is affecting this litchi leaf?", "Is this leaf healthy or does it show symptoms of fungal leaf blight?", "What is the likely cause of the irregular, necrotic patches on this litchi foliage?"], "counterfactual_templates": ["If the damage was uniform browning only at the leaf tip with no spots, would it be leaf blight?", "If the spots were raised, velvety, and orange, could this be leaf blight?"], "severity_templates": ["What percentage of this leaf's surface is covered by blight lesions?", "Based on the extent of damage, would you classify the leaf blight severity as mild, moderate, or severe?", "Are there more than five distinct lesions on this single leaf?"], "confounders": ["burned_leaf", "senescence_or_dry", "red_rust_disease"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Use even, diffuse lighting. Avoid hard shadows, overexposure, and backlighting which can obscure lesion details like borders and halos.", "occlusion_notes": "The symptomatic leaf should be the primary focus and be at least 80% visible, with minimal obstruction from other leaves, branches, or background clutter."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2024-05-23T10:00:00Z", "updated_at": "2024-05-23T10:00:00Z", "sources": ["APS Compendium of Tropical Fruit Diseases", "General university extension plant pathology guides", "Peer-reviewed plant pathology literature"]}}
+{"schema_version": "1.0.0", "disease_id": "litchi.disease_fungal.red_rust_disease", "aliases": ["algal leaf spot", "cephaleuros leaf spot"], "crop": {"common_name": "litchi", "scientific_name": "Litchi chinensis", "family": "Sapindaceae"}, "condition": {"common_name": "red rust disease", "scientific_name": "Cephaleuros virescens", "alt_names": ["Algal leaf spot"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Plantae", "phylum": "Chlorophyta", "class": "Ulvophyceae", "order": "Trentepohliales", "family": "Trentepohliaceae", "genus": "Cephaleuros", "species": "virescens"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["Wind-driven rain", "Water splash"], "overwintering": ["In infected leaves and stems as algal thalli"]}, "environmental_risk": {"risk_factors": ["High humidity", "Frequent rainfall", "Poor air circulation within the canopy", "Low light intensity", "Plant stress due to nutrient deficiency"], "temp_c_day": [25, 32], "temp_c_night": [], "relative_humidity_pct": [80, 100], "leaf_wetness_hours_threshold": 8}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area affected with distinct, scattered spots.", "moderate": "11-30% of leaf area affected; some spots may begin to coalesce.", "severe": ">30% of leaf area affected; extensive coalescing spots, often accompanied by leaf yellowing and premature defoliation.", "notes": "Severity is estimated as the percentage of the total leaf surface covered by the characteristic orange, velvety spots. In severe cases, stem and fruit infection should also be considered."}, "symptoms": {"leaves": ["Circular to irregular, slightly raised spots appear on the upper leaf surface.", "Spots are initially greenish-grey and develop a velvety texture.", "Mature spots become a distinct rusty-red or orange-brown color.", "The velvety texture is composed of the algal sporangiophores.", "A faint yellow halo may surround older spots.", "Underlying leaf tissue can become necrotic and turn brown.", "In severe infections, leaves may yellow and drop prematurely."], "stems": ["Similar velvety, orange-red spots can form on young, green stems and twigs.", "Infections may lead to bark cracking or small cankers on twigs."], "fruit": ["Small, raised, rusty-colored spots can appear on the fruit rind.", "Fruit spots are typically superficial and do not affect the flesh quality."], "roots": [], "whole_plant": ["Reduced plant vigor and significant defoliation in severe, chronic cases."], "signs_microscopic_or_visible": ["A visible, dense, felt-like mat of orange to red-brown algal filaments and sporangiophores forms the lesion."]}, "lookalikes": [{"condition_name": "leaf_blight", "condition_id": "litchi.disease_fungal.leaf_blight", "key_differences": ["Red rust spots are distinctly raised and have a velvety/hairy texture; fungal leaf blights are typically flat, necrotic lesions.", "Red rust spots are bright orange-red; leaf blight lesions are usually brown, tan, or grey, sometimes with concentric rings.", "Leaf blight lesions often start at the leaf margin or tip and expand irregularly, while red rust spots can appear anywhere on the leaf lamina."]}, {"condition_name": "pest_damage", "condition_id": "litchi.abiotic.pest_damage", "key_differences": ["Red rust spots are velvety and raised; mite damage causes fine stippling or bronzing, not distinct raised spots.", "Red rust spots have a characteristic orange-red color; mite damage is typically bronze, brown, or silvery.", "Mites or their webbing may be visible with a hand lens, which is absent in red rust disease."]}, {"condition_name": "black_spot", "condition_id": "litchi.disease_fungal.black_spot", "key_differences": ["The primary color is orange-red for red rust, versus dark brown to black for black spot.", "Red rust lesions are velvety and raised from the leaf surface; black spot lesions are typically flat or slightly sunken.", "A distinct yellow halo is more consistently associated with black spot than with red rust."]}], "management": {"cultural": ["Improve air circulation and light penetration by proper pruning of the canopy.", "Manage irrigation to minimize leaf wetness duration; avoid overhead watering.", "Ensure balanced plant nutrition to improve host resistance.", "Remove and destroy heavily infected leaves and twigs during pruning."], "biological": [], "chemical": ["Application of copper-based fungicides (e.g., copper hydroxide, copper oxychloride) can be effective.", "Preventative fungicide applications before the onset of the rainy season are most effective."], "notes": "Chemical control is typically reserved for severe infections or in nursery settings where conditions are highly conducive to disease development."}, "qa_seeds": {"verification_templates": ["Are there raised, velvety spots on the leaves?", "Is the color of the spots on the leaf orange or rusty-red?", "Does the leaf show circular, orange-brown lesions with a felt-like texture?", "Can you confirm the presence of raised, orange-colored spots on the upper leaf surface?", "Are the spots on the leaf surface slightly elevated and fuzzy?"], "attribute_templates": ["What is the texture of the spots on the leaf?", "What color are the lesions?", "Are the spots raised or flat against the leaf surface?", "Is there a halo around the orange spots?", "Where on the leaf are the rusty spots located?", "Do the spots appear on the stems as well?"], "diagnosis_templates": ["Based on the raised, velvety, orange-red spots on the leaves, what disease is affecting this litchi plant?", "What is the likely cause of the rusty-colored, felt-like growths on the litchi leaves?", "Can you identify the disease characterized by these slightly raised, circular, orange spots?"], "counterfactual_templates": ["If the spots were black and sunken instead of orange and raised, what might be the issue?", "What would you suspect if the leaves had large, brown, necrotic patches starting from the tip, instead of these distinct orange spots?"], "severity_templates": ["What percentage of the leaf area is covered by the red rust spots?", "How would you rate the severity of this red rust infection on a scale of mild, moderate, or severe?", "Are the red rust spots coalescing and causing the leaf to turn yellow?"], "confounders": ["leaf_blight", "pest_damage", "black_spot"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Even, diffuse lighting is best. Avoid harsh shadows or direct sunlight that can wash out the orange color and obscure the velvety texture.", "occlusion_notes": "The leaf surface with the spots should be clearly visible and in focus. Avoid images where symptoms are obscured by other leaves, branches, or debris."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["General university extension plant pathology guides", "APS Compendium of Tropical Fruit Diseases", "Peer-reviewed articles on litchi diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "litchi.physiological_symptom.senescence_or_dry", "aliases": ["Leaf senescence", "Leaf drying", "Natural leaf drop", "Age-related browning", "Water stress", "Tip burn"], "crop": {"common_name": "Litchi", "scientific_name": "Litchi chinensis", "family": "Sapindaceae"}, "condition": {"common_name": "Senescence or Dry", "scientific_name": null, "alt_names": ["Leaf aging", "Natural dieback", "Desiccation", "Drought stress symptoms"], "pathogen": {"type": "physiological_disorder", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "physiological_symptom", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Inadequate irrigation or drought", "Prolonged high temperatures and low humidity", "Poor soil drainage leading to root stress", "Nutrient deficiency (especially potassium)", "Natural aging process of older leaves", "High soil salinity"], "temp_c_day": [30, 40], "temp_c_night": [], "relative_humidity_pct": [0, 40], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "Less than 10% of the leaf surface is brown or yellow. Discoloration is confined to the extreme tip or margins.", "moderate": "10-40% of the leaf surface is affected. Browning extends significantly inward from the margins, and the leaf may begin to curl.", "severe": "More than 40% of the leaf surface is affected. The entire leaf is extensively brown, brittle, curled, and may be dropping from the plant.", "notes": "Assessed on a per-leaf basis. Differentiate from sudden burn by observing the gradual transition from green to yellow to brown, typical of a slower drying process."}, "symptoms": {"leaves": ["Progressive yellowing (chlorosis) that typically begins on older, lower leaves.", "Browning and drying starts at the leaf tip and/or margins and advances inward.", "The transition between green and brown tissue is often gradual, sometimes with a yellow halo.", "Affected tissue becomes dry, brittle, and papery to the touch.", "Leaves may curl or roll inwards as they lose turgor.", "The discoloration pattern is generally uniform browning, lacking distinct spots, pustules, or concentric rings.", "In severe cases, the entire leaf turns brown and abscises (drops) prematurely."], "stems": ["In prolonged and severe drought, terminal twigs may shrivel and die back."], "fruit": [], "roots": [], "whole_plant": ["General appearance of wilting during the hottest part of the day.", "Reduced canopy density due to premature leaf drop."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "Burned Leaf", "condition_id": "litchi.physiological_symptom.burned_leaf", "key_differences": ["Burn damage appears rapidly and often has a very sharp, distinct border between necrotic and healthy tissue, while drying is a more gradual transition.", "Sunburn often bleaches tissue to a light tan or white color, especially on the most sun-exposed parts of the canopy.", "Chemical burn can appear as spots or blotches wherever droplets landed, not necessarily starting at the margins.", "Drying typically affects leaf tips and margins symmetrically, while burn damage can be asymmetrical depending on exposure."]}, {"condition_name": "Leaf Blight", "condition_id": "litchi.fungal_disease.leaf_blight", "key_differences": ["Blight presents as large, irregular lesions or blotches that can start anywhere on the leaf, not just the margins.", "Blight lesions may exhibit concentric rings ('target spot' appearance) or have a darker, well-defined border.", "Under humid conditions, fungal structures (e.g., moldy growth, tiny black dots which are pycnidia) may be visible on blight lesions, which are absent in physiological drying.", "Blight lesions may initially appear water-soaked, whereas drying symptoms are characteristically dry and brittle from the start."]}], "management": {"cultural": ["Ensure consistent and deep irrigation, especially during fruit development and hot, dry weather.", "Apply a thick layer of organic mulch around the tree base to conserve soil moisture and moderate root temperature.", "Conduct soil and leaf analysis to diagnose and correct nutrient imbalances, particularly potassium.", "Improve soil drainage in heavy clay soils to prevent root suffocation and waterlogging stress."], "biological": [], "chemical": ["In areas with saline water, periodic leaching of the root zone with fresh water can reduce salt buildup.", "Application of anti-transpirants before a predicted heatwave may help reduce water loss."], "notes": "Differentiating natural senescence of old leaves from stress-induced drying is crucial. A small amount of yellowing and drop of the oldest leaves is normal and requires no intervention."}, "qa_seeds": {"verification_templates": ["Is the leaf turning brown from the tip or edges inward?", "Does the discolored tissue appear dry and papery?", "Is there a gradual transition from green to yellow to brown on the leaf?", "Are the oldest leaves on the plant showing the most symptoms?", "Is the browning pattern uniform, without distinct spots or rings?", "Does the leaf look curled or rolled up?", "Is the browning primarily located on the leaf margins?"], "attribute_templates": ["What color is the affected leaf tissue?", "Where on the leaf did the browning start?", "Describe the texture of the damaged area.", "Is the border between the brown and green areas sharp or gradual?", "Are there any spots, blotches, or pustules within the brown area?", "What is the overall condition of the plant's canopy?", "How is the leaf oriented? Is it curled, wilted, or flat?"], "diagnosis_templates": ["Based on the marginal browning and brittle texture, what is wrong with the litchi leaf?", "Is this leaf showing signs of natural aging, disease, or environmental stress?", "What physiological issue is causing this leaf to dry out from the edges?"], "counterfactual_templates": ["If this were leaf blight, what other signs like distinct lesions or fungal growth might you see?", "What would this leaf look like if it were burned by a chemical spray instead of drying from lack of water?"], "severity_templates": ["What percentage of this leaf's surface area is brown and dry?", "How would you rate the severity of drying on this leaf: mild, moderate, or severe?", "Is the desiccation limited to the leaf tip, or does it cover more than half the leaf?"], "confounders": ["burned_leaf", "leaf_blight"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Use even, diffuse lighting. Avoid harsh direct sunlight which can create glare and obscure the subtle color gradient between healthy and necrotic tissue.", "occlusion_notes": "The leaf tip and margins must be clearly visible. Avoid images where these key diagnostic areas are covered by other leaves, branches, or are out of focus."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["University extension guides for litchi cultivation", "APS Compendium of Tropical Fruit Diseases", "General plant physiology textbooks on abiotic stress"]}}
+{"schema_version": "1.0.0", "disease_id": "litchi.physiological_symptom.white_spot", "aliases": ["sunscald", "sunburn"], "crop": {"common_name": "litchi", "scientific_name": "Litchi chinensis", "family": "Sapindaceae"}, "condition": {"common_name": "white spot", "scientific_name": null, "alt_names": ["sunscald", "sunburn"], "pathogen": {"type": "abiotic", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "physiological_symptom", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["High solar radiation", "Sudden exposure of leaves or fruit to direct sunlight (e.g., after pruning)", "High ambient temperatures", "Low relative humidity", "Water stress"], "temp_c_day": [32, 45], "temp_c_night": [], "relative_humidity_pct": [20, 50], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of the visible leaf or fruit surface is affected by white, bleached patches.", "moderate": "11-40% of the visible leaf or fruit surface shows symptoms, which may be coalescing.", "severe": ">40% of the visible leaf or fruit surface is bleached, dry, or necrotic.", "notes": "Severity is assessed on an individual leaf or fruit. The percentage refers to the surface area showing characteristic white, papery, or leathery symptoms caused by sun exposure. A value of 0 indicates the condition is not applicable as it's an abiotic disorder not driven by moisture."}, "symptoms": {"leaves": ["Irregular, bleached white, tan, or light grey patches appear on sun-exposed leaf surfaces.", "Affected tissue becomes dry, thin, and papery to the touch.", "Lesions are often located on the upper canopy leaves that receive the most direct sunlight.", "A distinct border may form between the damaged area and healthy green tissue.", "In severe cases, the necrotic patch may crack or fall out, creating holes in the leaf."], "stems": ["Bleached or light-colored patches can occur on young, green stems directly exposed to intense sun."], "fruit": ["A white to light-brown, sunken, leathery patch develops on the fruit peel (pericarp).", "The symptom is almost always on the side of the fruit facing the sun.", "The affected peel fails to develop the normal red coloration.", "The underlying flesh (aril) beneath the spot may become dry, hard, and unpalatable."], "roots": [], "whole_plant": ["Symptoms are concentrated on the south- or west-facing side of the plant canopy (in the Northern Hemisphere)."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "burned_leaf", "condition_id": "litchi.physiological_symptom.burned_leaf", "key_differences": ["White spot (sunscald) causes bleached, white-to-tan patches in the center or exposed side of the leaf, whereas leaf burn from drought or salinity typically starts at the leaf tip or margins and is dark brown or black.", "Sunscald lesions are often irregularly shaped based on sun exposure, while marginal necrosis (burn) follows the leaf edge more uniformly.", "Sunscald is localized to sun-exposed parts of the canopy; chemical or salt burn can appear anywhere on the plant, including shaded lower leaves."]}, {"condition_name": "pest_damage", "condition_id": "litchi.pest_damage.unspecified", "key_differences": ["White spot lesions are solid bleached patches, whereas mite damage often appears as fine, silvery or bronze stippling.", "Damage from leaf-mining insects creates distinct winding trails or blotches within the leaf tissue, which is structurally different from the surface bleaching of sunscald.", "Physical evidence of pests, such as insects, frass, webbing, or eggs, may be visible with pest damage but is absent in white spot."]}, {"condition_name": "red_rust_disease", "condition_id": "litchi.algal_pathogen.red_rust_disease", "key_differences": ["White spot is a bleached, papery lesion, while red rust disease appears as raised, velvety, orange-to-reddish-brown spots on leaves or stems.", "Red rust spots are caused by an alga and have a distinct color and texture, unlike the pale, necrotic tissue of sunscald.", "Under magnification, red rust shows filamentous structures, which are absent in the abiotic white spot condition."]}], "management": {"cultural": ["Ensure adequate and consistent irrigation during hot, dry weather to prevent water stress, which increases susceptibility.", "Avoid excessive or sudden pruning that exposes previously shaded leaves and fruit to intense direct sunlight.", "Maintain a healthy, sufficiently dense canopy to provide natural shading for developing fruit.", "Orient rows to minimize direct afternoon sun exposure on the fruit, if possible during orchard planning."], "biological": [], "chemical": ["Application of reflective particle films, such as kaolin clay sprays, can act as a physical sunscreen to protect leaves and fruit."], "notes": "Management is entirely preventative, focusing on reducing plant stress and mitigating the effects of extreme solar radiation and heat."}, "qa_seeds": {"verification_templates": ["Does this leaf show any bleached white or papery patches?", "Is there a large, white, leathery spot on the skin of this litchi fruit?", "Are the symptoms on this leaf consistent with sunscald?", "Can you see any dry, light-colored spots on the sun-exposed parts of the plant?", "Is the tissue in the affected area thin and brittle?"], "attribute_templates": ["What color are the spots on this leaf?", "Describe the texture of the affected area on the fruit.", "Where on the fruit is the white spot located?", "Are the edges of the bleached patch well-defined or diffuse?", "Is the spot flat, sunken, or raised?"], "diagnosis_templates": ["What physiological disorder causes these white, papery spots on the leaves?", "Based on the bleached, leathery patch on the sun-exposed side of the fruit, what is the likely condition?", "Is this litchi suffering from white spot or a fungal disease?"], "counterfactual_templates": ["If the spots were dark brown and concentrated at the leaf tip, would it still be white spot?", "If the white areas were fuzzy and could be rubbed off, would the diagnosis be sunscald?", "Would this be considered white spot if the damage appeared as winding trails inside the leaf?"], "severity_templates": ["How severe is the white spot on this leaf?", "What percentage of this fruit's surface is affected by sunscald?", "Would you classify this damage as mild, moderate, or severe?"], "confounders": ["burned_leaf", "pest_damage", "red_rust_disease"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Use diffuse, even lighting. Avoid harsh, direct sunlight during photography, as it can overexpose the white lesions and make them difficult to distinguish from reflections.", "occlusion_notes": "The symptomatic leaf or fruit should be the primary subject. Ensure the white spot is not significantly obscured by other leaves, branches, or deep shadows."}, "provenance": {"created_by": "expert_plant_pathologist_vqa_designer", "reviewed_by": "expert_plant_pathologist_vqa_designer", "created_at": "2024-05-21T10:00:00Z", "updated_at": "2024-05-21T10:00:00Z", "sources": ["General university extension guides for tropical fruit production", "APS Compendium of Tropical Fruit Diseases", "Published literature on abiotic stress in Litchi chinensis"]}}
+{"schema_version": "1.0.0", "disease_id": "litchi.disease_viral.yellow_mosaic_virus", "aliases": ["Litchi yellow mosaic disease", "LYMD"], "crop": {"common_name": "litchi", "scientific_name": "Litchi chinensis", "family": "Sapindaceae"}, "condition": {"common_name": "yellow mosaic virus", "scientific_name": null, "alt_names": ["litchi yellow mosaic"], "pathogen": {"type": "virus", "taxonomy": {"kingdom": "Orthornavirae", "phylum": "Cressdnaviricota", "class": "Repensiviricetes", "order": "Geplafuvirales", "family": "Geminiviridae", "genus": "Begomovirus", "species": ""}}}, "issue_type": "disease_viral", "transmission": {"vectors": ["Whitefly (Bemisia tabaci)"], "dispersal": ["Infected planting material (grafting)", "Insect vectors"], "overwintering": ["In perennial host plants", "In surviving adult insect vectors"]}, "environmental_risk": {"risk_factors": ["High populations of whitefly vectors", "Warm and humid conditions favoring vector activity", "Proximity to infected alternative host plants", "Use of uncertified, infected scions for grafting"], "temp_c_day": [25, 35], "temp_c_night": [], "relative_humidity_pct": [60, 85], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area shows yellow mosaic or mottling. Symptoms may be on scattered, individual leaves, often on a single flush.", "moderate": "11-40% of leaf area affected. Mosaic patterns are prominent and widespread across multiple leaves and flushes of growth.", "severe": ">40% of leaf area affected. Widespread, bright yellowing, often accompanied by leaf distortion, curling, and stunting of new shoots.", "notes": "Severity is estimated based on the percentage of the plant's total leaf surface area showing characteristic yellow mosaic, mottling, or chlorotic patterns."}, "symptoms": {"leaves": ["Bright yellow, irregular patches or blotches interspersed with normal green tissue, creating a distinct mosaic pattern.", "Diffuse chlorotic mottling across the leaf lamina.", "Symptoms are typically most conspicuous on young, developing leaves and new flushes.", "Vein clearing or vein banding, where tissue along the veins turns yellow, may occur on young leaves.", "In severe infections, leaves may be distorted, puckered, curled, or reduced in size.", "The boundary between yellow and green areas is typically sharp and irregular.", "Affected leaves may feel brittle compared to healthy ones."], "stems": ["Internodes may be shortened, leading to a bushy or stunted appearance of new growth."], "fruit": ["Reduced fruit set and smaller fruit size may occur on chronically infected trees."], "roots": [], "whole_plant": ["General stunting, reduced vigor, and overall decline in plant health in severe cases."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "senescence_or_dry", "condition_id": "litchi.abiotic.senescence_or_dry", "key_differences": ["Senescence causes a uniform, gradual yellowing (chlorosis), often starting from the margins or tip, not a patchy mosaic of green and yellow.", "Drought stress typically causes wilting and browning/crisping of leaf edges, which are absent in viral mosaic.", "Mosaic patterns are distinct, irregular patches, while senescence is a more consistent color change across the entire leaf."]}, {"condition_name": "pest_damage", "condition_id": "litchi.pest.pest_damage", "key_differences": ["Pest damage (e.g., from mites) often appears as fine, pinpoint stippling or tiny chlorotic spots, not large, blotchy mosaic patterns.", "The underside of the leaf may reveal the pests themselves, webbing, or sooty mold from honeydew, which are not signs of a virus.", "Pest-induced yellowing may follow feeding tracks or be concentrated in specific areas, unlike the random mosaic distribution."]}, {"condition_name": "red_rust_disease", "condition_id": "litchi.disease_algal.red_rust_disease", "key_differences": ["Red rust presents as raised, velvety, circular spots that are orange to reddish-brown, not flat, yellow areas within the leaf tissue.", "Viral mosaic is a discoloration of the leaf lamina, whereas red rust is a physical algal growth on the leaf surface.", "The color of red rust is distinctly orange/rust, contrasting with the bright yellow or chlorotic color of the virus."]}], "management": {"cultural": ["Use certified virus-free planting material from reputable nurseries.", "Rogue and destroy infected plants immediately upon detection to limit spread.", "Maintain good weed control in and around the orchard, as weeds can host the virus and its vectors.", "Avoid mechanical damage to plants, which can create entry points for vectors."], "biological": ["Conserve and encourage natural enemies of whiteflies, such as lacewings, lady beetles, and parasitic wasps."], "chemical": ["Apply systemic or contact insecticides recommended for whitefly control, targeting vector populations, especially before and during new growth flushes. Rotate chemical classes to prevent resistance."], "notes": "The primary management strategy is prevention. Once a plant is infected with a virus, it cannot be cured. All efforts should focus on using clean planting stock and controlling the whitefly vector."}, "qa_seeds": {"verification_templates": ["Is there a patchy pattern of bright yellow and green on the leaf surface?", "Does the leaf show distinct mosaic or mottled discoloration?", "Are the symptoms more obvious on younger leaves compared to older ones?", "Is the leaf shape distorted or curled in addition to the color change?", "Are the yellow areas flat and part of the leaf tissue, not a growth on top?"], "attribute_templates": ["What is the pattern of the yellowing on the leaves?", "Describe the color of the affected areas.", "Are the leaves misshapen in any way?", "Which leaves on the plant seem most affected?", "Is there any sign of a pest on the underside of the leaf?", "How sharp is the border between the green and yellow areas?"], "diagnosis_templates": ["What disease causes yellow mosaic patterns on litchi leaves?", "Based on the mottled yellow and green leaves, what is the likely problem?", "My litchi plant has stunted growth and blotchy yellow leaves. What could be the cause?"], "counterfactual_templates": ["If the yellowing was uniform across the whole leaf, what could it be instead of a virus?", "What would you expect to see if the spots were raised and orange instead of flat and yellow?", "If this was mite damage, what other signs would be present on the leaf?"], "severity_templates": ["What percentage of the leaf's surface is covered by yellow mosaic patterns?", "How would you classify the severity of this yellow mosaic virus infection?", "Is the infection mild, with only a few leaves affected, or severe and widespread?"], "confounders": ["senescence_or_dry", "pest_damage", "red_rust_disease"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.4, "lighting_notes": "Use even, diffuse light. Avoid harsh, direct sunlight which can overexpose the yellow areas and obscure the pattern. Avoid deep shadows.", "occlusion_notes": "Ensure the symptomatic leaf surface is in focus and not obscured by other leaves, branches, or background clutter. A clear view of the pattern is essential."}, "provenance": {"created_by": "AI Plant Pathologist", "reviewed_by": "Human Expert", "created_at": "2024-05-21T10:00:00Z", "updated_at": "2024-05-21T10:00:00Z", "sources": ["General plant virology textbooks", "University extension guides for tropical fruit production", "APS Compendium of Tropical Fruit Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "corn.disease_bacterial.bacterial_leaf_streak", "aliases": ["Xanthomonas leaf streak", "bacterial streak"], "crop": {"common_name": "corn", "scientific_name": "Zea mays", "family": "Poaceae"}, "condition": {"common_name": "bacterial leaf streak", "scientific_name": "Xanthomonas vasicola pv. vasculorum", "alt_names": ["BLS"], "pathogen": {"type": "disease_bacterial", "taxonomy": {"kingdom": "Bacteria", "phylum": "Pseudomonadota", "class": "Gammaproteobacteria", "order": "Lysobacterales", "family": "Lysobacteraceae", "genus": "Xanthomonas", "species": "vasicola"}}}, "issue_type": "disease_bacterial", "transmission": {"vectors": [], "dispersal": ["wind-driven rain", "sprinkler irrigation", "movement of contaminated equipment", "infected crop residue"], "overwintering": ["infected crop residue", "weedy grass hosts"]}, "environmental_risk": {"risk_factors": ["high humidity and rainfall", "warm temperatures", "overhead irrigation", "continuous corn or corn-on-corn rotation", "susceptible hybrids", "no-till or minimum tillage systems"], "temp_c_day": [25, 30], "temp_c_night": [], "relative_humidity_pct": [80, 100], "leaf_wetness_hours_threshold": 6}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-5% of leaf area affected. Lesions are small, scattered, and primarily on lower leaves.", "moderate": "6-25% of leaf area affected. Lesions are more numerous, beginning to coalesce, and present on middle leaves.", "severe": ">25% of leaf area affected. Extensive lesion coalescence, large necrotic areas, and symptoms present on upper leaves and husks.", "notes": "Severity is typically assessed on the ear leaf and the leaves above it at the R3-R5 (milk to dent) growth stages. The value represents the percentage of leaf surface covered by symptomatic tissue."}, "symptoms": {"leaves": ["Initial lesions are narrow, water-soaked streaks between leaf veins.", "Streaks elongate to become tan, brown, or bright orange.", "Lesion margins are wavy and irregular, not sharply defined like fungal diseases.", "When held to light, lesions appear translucent or greasy.", "Lesions range from less than an inch to several inches in length.", "Multiple streaks can coalesce to form large, irregular blotches of dead tissue.", "Symptoms typically appear first on lower leaves and progress up the plant.", "Unlike gray leaf spot, lesions are not perfectly rectangular or vein-limited."], "stems": [], "fruit": [], "roots": [], "whole_plant": [], "signs_microscopic_or_visible": ["In high humidity, tiny droplets of sticky bacterial ooze may be visible on lesion surfaces.", "This ooze dries into small, yellow, crystalline flakes on the leaf."]}, "lookalikes": [{"condition_name": "gray leaf spot", "condition_id": "corn.disease_fungal.gray_leaf_spot", "key_differences": ["Lesion Shape: Gray leaf spot lesions are distinctly rectangular with straight, parallel sides, strictly limited by leaf veins.", "Lesion Margin: Bacterial leaf streak lesions have wavy, irregular margins.", "Lesion Appearance: Gray leaf spot lesions are opaque and grayish-tan, while bacterial streak lesions can appear greasy or translucent when backlit."]}, {"condition_name": "northern leaf blight", "condition_id": "corn.disease_fungal.northern_leaf_blight", "key_differences": ["Lesion Size & Shape: Northern leaf blight produces very large (up to 6 inches), cigar-shaped, elliptical lesions.", "Lesion Appearance: Bacterial leaf streak lesions are much narrower, streak-like, and lack the distinct concentric zones sometimes seen in NLB.", "Lesion Color: NLB lesions are typically tan or grayish, while BLS can have a more vibrant orange or yellowish hue."]}, {"condition_name": "common rust", "condition_id": "corn.disease_fungal.common_rust", "key_differences": ["Symptom Type: Common rust produces raised, circular-to-oval pustules that rupture the leaf epidermis.", "Texture: Rust pustules are powdery and release cinnamon-brown spores when touched.", "Appearance: Bacterial leaf streak lesions are flat, non-powdery streaks within the leaf tissue."]}], "management": {"cultural": ["Select resistant or tolerant corn hybrids.", "Rotate to non-host crops like soybeans or alfalfa.", "Use tillage to bury and encourage decomposition of infected crop residue.", "Manage grassy weeds that can serve as alternative hosts."], "biological": ["Efficacy of biological control agents is not well-established for this disease."], "chemical": ["Foliar fungicides are ineffective as this is a bacterial disease.", "Copper-based bactericides may provide some suppression if applied preventatively, but efficacy is often inconsistent and may not be economical."], "notes": "Preventative management through hybrid selection and cultural practices is the most effective strategy."}, "qa_seeds": {"verification_templates": ["Does this corn leaf have narrow, tan streaks?", "Are the edges of the lesions on this leaf wavy or irregular?", "When backlit, do the streaks on the leaf look greasy or translucent?", "Is there evidence of bacterial leaf streak on this plant?", "Can you confirm the presence of elongated, non-rectangular lesions?"], "attribute_templates": ["What is the shape of the lesion margins?", "What color are the streaks on the leaf?", "Describe the appearance of the lesion when held up to the light.", "Are the lesions flat or are they raised pustules?", "How would you describe the shape of the lesions?"], "diagnosis_templates": ["What disease causes wavy-margined, translucent streaks on corn leaves?", "Based on the narrow, orange-tan lesions with irregular borders, what is the likely diagnosis?", "A corn leaf has symptoms of a bacterial infection appearing as greasy streaks. What is the disease?"], "counterfactual_templates": ["If these lesions were perfectly rectangular and gray, would it still be bacterial leaf streak?", "If the lesions were raised, powdery, and rust-colored, could this be bacterial leaf streak?", "If the lesion was a very large, cigar-shaped blotch, what disease would be more likely?"], "severity_templates": ["What percentage of this leaf surface is affected by bacterial leaf streak?", "How would you rate the severity of this infection on a mild, moderate, or severe scale?", "Are the bacterial leaf streak lesions coalescing into large necrotic areas?"], "confounders": ["gray_leaf_spot", "northern_leaf_blight", "common_rust"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Diffuse, even lighting is preferred. Avoid harsh shadows. Backlighting can be very effective for highlighting the greasy/translucent symptom.", "occlusion_notes": "Ensure the characteristic lesions are clearly visible and not significantly obscured by other leaves, debris, or water droplets."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["APS Compendium of Corn Diseases", "University extension publications and crop protection network guides"]}}
+{"schema_version": "1.0.0", "disease_id": "corn.disease_fungal.common_rust", "aliases": ["maize common rust", "Puccinia sorghi rust"], "crop": {"common_name": "Corn", "scientific_name": "Zea mays", "family": "Poaceae"}, "condition": {"common_name": "Common Rust", "scientific_name": "Puccinia sorghi", "alt_names": ["Maize Rust"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Basidiomycota", "class": "Pucciniomycetes", "order": "Pucciniales", "family": "Pucciniaceae", "genus": "Puccinia", "species": "sorghi"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["Wind-borne urediniospores"], "overwintering": ["On alternate hosts (Oxalis spp.)", "In southern regions on corn debris or volunteer corn"]}, "environmental_risk": {"risk_factors": ["High humidity", "Cool to moderate temperatures", "Frequent dews or light rains", "Susceptible hybrid planted"], "temp_c_day": [16, 25], "temp_c_night": [], "relative_humidity_pct": [95, 100], "leaf_wetness_hours_threshold": 6}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-5% of leaf area covered in pustules. Pustules are scattered and infrequent.", "moderate": "6-25% of leaf area covered. Pustules are numerous on multiple leaves, some may be coalescing.", "severe": ">25% of leaf area covered. Pustules are dense, covering large portions of leaves, leading to chlorosis, necrosis, and premature leaf death.", "notes": "Severity is often assessed on the ear leaf at the R3 (milk) to R5 (dent) growth stage. Percentage refers to the symptomatic leaf area, not the whole plant."}, "symptoms": {"leaves": ["Small, circular to oval, cinnamon-brown pustules (uredinia) appear on both upper and lower leaf surfaces.", "Pustules are typically scattered randomly across the leaf, not limited by veins.", "The pustules rupture the epidermis, creating a powdery, rust-colored deposit of spores.", "A faint yellow or chlorotic halo may surround individual pustules.", "As pustules age, they turn darker, becoming brownish-black (telia formation) late in the season.", "In severe infections, leaves may become covered in pustules, leading to yellowing and premature drying."], "stems": ["Pustules can occasionally appear on the husk and stalk, but are most common on leaves."], "fruit": [], "roots": [], "whole_plant": ["In highly susceptible hybrids, severe infections can cause reduced vigor and yield loss."], "signs_microscopic_or_visible": ["Cinnamon-brown, powdery urediniospores visible when pustules rupture.", "Dark brown to black teliospores in older pustules (telia)."]}, "lookalikes": [{"condition_name": "Gray Leaf Spot", "condition_id": "corn.disease_fungal.gray_leaf_spot", "key_differences": ["Gray leaf spot lesions are rectangular and vein-limited, while common rust pustules are oval to circular and scattered.", "Common rust pustules are raised and rupture to release powdery spores; gray leaf spot lesions are flat and tan-to-gray.", "Gray leaf spot lesions are typically gray or tan, not cinnamon-brown like active rust pustules."]}, {"condition_name": "Northern Leaf Blight", "condition_id": "corn.disease_fungal.northern_leaf_blight", "key_differences": ["Northern leaf blight causes large, cigar-shaped, tan lesions, which are much larger than individual rust pustules.", "Common rust features small, raised, powdery pustules, whereas NLB lesions are flat and necrotic.", "NLB lesions do not rupture the epidermis to release powdery spores."]}, {"condition_name": "Bacterial Leaf Streak", "condition_id": "corn.disease_bacterial.bacterial_leaf_streak", "key_differences": ["Bacterial leaf streak lesions are narrow, wavy-edged, and often appear water-soaked or greasy, unlike the dry, powdery rust pustules.", "Bacterial lesions are translucent and yellow to brown, not the distinct cinnamon-brown of common rust.", "Bacterial leaf streak does not produce raised pustules that rupture the epidermis."]}], "management": {"cultural": ["Planting resistant or tolerant corn hybrids.", "Managing alternate hosts like Oxalis spp. (wood sorrel).", "Early planting to avoid high spore loads later in the season."], "biological": ["Some bio-fungicides containing Bacillus species may offer suppression but are generally less effective than chemical options for severe disease pressure."], "chemical": ["Application of foliar fungicides (e.g., strobilurins, triazoles, SDHIs) based on scouting and economic thresholds.", "Seed treatments may provide limited early-season protection."], "notes": "Fungicide application is most effective when applied early in the disease cycle, often between the VT (tasseling) and R2 (blister) growth stages, to protect the ear leaf and upper canopy."}, "qa_seeds": {"verification_templates": ["Is there a cinnamon-brown, powdery substance on the leaf?", "Are the spots on the leaf small, circular, and raised?", "Do the spots appear to have ruptured the leaf surface?", "Are the spots scattered on both the top and bottom of the leaf?", "Does rubbing a spot leave a rust-colored powder on your finger?"], "attribute_templates": ["What color are the pustules on the leaf?", "What is the shape of the spots?", "Are the spots raised or flat against the leaf surface?", "Is there a yellow halo around the spots?", "How are the pustules distributed on the leaf: scattered or in lines?", "Are the pustules confined by the leaf veins?"], "diagnosis_templates": ["Based on the scattered, cinnamon-brown, powdery pustules, what disease is affecting this corn leaf?", "What fungal disease is characterized by small, oval pustules that rupture the epidermis?", "Is this corn leaf showing symptoms of common rust?"], "counterfactual_templates": ["If the lesions were long, rectangular, and gray, what disease might it be instead of common rust?", "What would this leaf look like if it had northern leaf blight instead of common rust?"], "severity_templates": ["What percentage of this leaf's area is covered by rust pustules?", "How would you rate the severity of this common rust infection: mild, moderate, or severe?", "Is the common rust severity on this leaf greater than 10%?"], "confounders": ["gray_leaf_spot", "northern_leaf_blight"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Even, diffuse lighting is preferred. Avoid harsh shadows or direct sunlight that can wash out pustule color and texture.", "occlusion_notes": "The primary symptomatic area should be free from occlusion by other leaves, debris, or water droplets that might obscure pustule details."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University extension guides for corn diseases", "APS Compendium of Corn Diseases", "Peer-reviewed plant pathology literature"]}}
+{"schema_version": "1.0.0", "disease_id": "corn.disease_fungal.gray_leaf_spot", "aliases": ["GLS", "Cercospora leaf spot of maize"], "crop": {"common_name": "corn", "scientific_name": "Zea mays", "family": "Poaceae"}, "condition": {"common_name": "gray leaf spot", "scientific_name": "Cercospora zeae-maydis", "alt_names": ["GLS"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Capnodiales", "family": "Mycosphaerellaceae", "genus": "Cercospora", "species": "zeae-maydis"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["wind-blown conidia", "rain splash"], "overwintering": ["infected corn residue (stalks, leaves)", "debris on soil surface"]}, "environmental_risk": {"risk_factors": ["high relative humidity", "prolonged leaf wetness", "warm temperatures", "continuous corn cropping", "minimum or no-tillage systems", "susceptible hybrids"], "temp_c_day": [22, 30], "temp_c_night": [20, 28], "relative_humidity_pct": [90, 100], "leaf_wetness_hours_threshold": 12}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-5% of leaf area affected; lesions are few and primarily on lower leaves.", "moderate": "6-25% of leaf area affected; lesions are numerous on lower leaves and are progressing to the ear leaf and middle canopy.", "severe": ">25% of leaf area affected; significant lesion coalescence on lower and middle leaves, with lesions prevalent in the upper canopy, causing premature leaf death.", "notes": "Severity is assessed on the total foliar area of the plant, but often focuses on the ear leaf and above, as these contribute most to yield. Assessment is most critical from tasseling (VT) through dough (R4) stages."}, "symptoms": {"leaves": ["Initial lesions are small, tan, necrotic spots, sometimes with a faint yellow halo.", "Mature lesions are long (1-6 cm), narrow, and distinctly rectangular.", "Lesions are sharply restricted by leaf veins, giving them parallel sides and a blocky look.", "Mature lesion color is typically tan, light brown, or gray.", "Under humid conditions, lesions may appear grayish or olive-colored due to fungal sporulation.", "Symptoms first appear on the lowest leaves and progress up the plant.", "In severe cases, lesions merge (coalesce) to blight large sections of the leaf.", "Affected leaves may die prematurely, appearing dried and gray-brown."], "stems": ["Symptoms are not typically found on the stalk."], "fruit": ["The ears and kernels are not directly infected by this pathogen."], "roots": ["No direct symptoms on roots."], "whole_plant": ["Reduced photosynthetic area from leaf blighting can lead to reduced grain fill, lower test weight, and weakened stalks.", "Severe infections can cause premature plant death."], "signs_microscopic_or_visible": ["With a hand lens, grayish tufts of conidiophores and conidia (fungal spores) may be visible on the lesion surface, especially on humid mornings."]}, "lookalikes": [{"condition_name": "northern leaf blight", "condition_id": "corn.disease_fungal.northern_leaf_blight", "key_differences": ["Lesion Shape: NLB lesions are large (up to 15 cm), elliptical or 'cigar-shaped', not rectangular like GLS.", "Vein Limitation: NLB lesions are not strictly limited by leaf veins and can cross them.", "Lesion Color: NLB lesions are typically tan or grayish-green, and may have distinct dark zones of sporulation."]}, {"condition_name": "bacterial leaf streak", "condition_id": "corn.disease_bacterial.bacterial_leaf_streak", "key_differences": ["Lesion Margins: Bacterial leaf streak lesions have wavy, irregular margins, while GLS lesions have straight, parallel sides.", "Lesion Appearance: Bacterial lesions often appear water-soaked or greasy, especially when young, and can be translucent when held to light.", "Lesion Color: Bacterial lesions are often bright yellow, orange, or brown, not the typical tan or gray of mature GLS."]}], "management": {"cultural": ["Select resistant or tolerant corn hybrids.", "Implement crop rotation with non-host crops like soybeans or wheat.", "Use tillage to bury and encourage decomposition of infected corn residue.", "Avoid irrigation methods that extend periods of leaf wetness."], "biological": ["Some bio-fungicides containing *Bacillus* species may provide partial suppression but are generally less effective than chemical options for severe disease pressure."], "chemical": ["Apply foliar fungicides from classes such as Qols (strobilurins), DMIs (triazoles), and SDHIs.", "Scout fields near the tasseling (VT) growth stage to determine if fungicide application is warranted based on disease presence and environmental conditions.", "Ensure thorough coverage, especially in the middle and upper canopy."], "notes": "Integrated pest management (IPM) combining resistant hybrids, cultural practices, and judicious fungicide use is the most effective and sustainable strategy."}, "qa_seeds": {"verification_templates": ["Does this corn leaf have long, narrow lesions with straight sides?", "Are the lesions on this leaf clearly blocked by the leaf veins, making them look rectangular?", "Is the color of the mature lesions on this leaf tan or gray?", "Are the symptoms worse on the lower leaves compared to the upper leaves?", "Do you see multiple rectangular spots merging together to form larger dead areas?"], "attribute_templates": ["What is the primary shape of the spots on this corn leaf?", "Describe the edges of the lesions.", "What color are the lesions?", "Are the lesions confined between the leaf veins?", "On which part of the plant are the lesions most numerous?", "Can you see a fuzzy or gray texture on the surface of the lesions?"], "diagnosis_templates": ["Given the rectangular, vein-limited lesions, what is the most likely disease on this corn?", "Is this corn plant infected with gray leaf spot?", "What fungal disease causes long, blocky, gray lesions on corn leaves?"], "counterfactual_templates": ["If these lesions were wide and cigar-shaped instead of rectangular, what disease would it be?", "How would these lesions look different if the cause was bacterial leaf streak?"], "severity_templates": ["What percentage of this leaf's surface is covered by lesions?", "Based on the number of lesions and their location on the plant, would you rate the gray leaf spot severity as mild, moderate, or severe?", "Are the symptoms of gray leaf spot present on the ear leaf or higher?"], "confounders": ["northern_leaf_blight", "bacterial_leaf_streak"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.2, "lighting_notes": "Use diffuse, even lighting. Avoid harsh shadows and overexposure from direct sun, which can obscure lesion color and texture. Backlighting is not recommended as it can make lesions appear translucent, a feature more common in lookalikes.", "occlusion_notes": "The primary symptomatic leaf should be clearly visible and not covered by other leaves, tassels, or debris. Wet leaves from dew or rain can alter the appearance of lesions and should be allowed to dry before capturing images."}, "provenance": {"created_by": "VQA Dataset Designer (Plant Pathology Expert)", "reviewed_by": "VQA Dataset Designer (Plant Pathology Expert)", "created_at": "2023-10-27T12:00:00Z", "updated_at": "2023-10-27T12:00:00Z", "sources": ["University extension plant pathology guides", "APS Compendium of Corn Diseases, 4th Edition", "Peer-reviewed plant pathology research articles"]}}
+{"schema_version": "1.0.0", "disease_id": "corn.healthy.healthy", "aliases": ["normal corn", "asymptomatic corn", "unaffected corn"], "crop": {"common_name": "corn", "scientific_name": "Zea mays", "family": "Poaceae"}, "condition": {"common_name": "healthy", "scientific_name": null, "alt_names": ["asymptomatic"], "pathogen": {"type": "none", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "healthy", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Optimal growing conditions", "Adequate sunlight and soil moisture", "Balanced soil fertility", "Use of disease-resistant hybrids", "Absence of significant pathogen pressure or environmental stress"], "temp_c_day": [25, 33], "temp_c_night": [17, 23], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "0% of leaf area affected by symptoms.", "moderate": "Not applicable. Any presence of symptoms indicates a non-healthy state.", "severe": "Not applicable. Any presence of symptoms indicates a non-healthy state.", "notes": "This rubric defines the 'healthy' state as the complete absence of disease or stress symptoms. Any deviation from 0% affected area would classify the plant under a different condition."}, "symptoms": {"leaves": ["Uniformly green color, appropriate for the hybrid and growth stage.", "Leaf surfaces are smooth and unblemished, without spots, lesions, streaks, or pustules.", "Leaves are fully expanded and turgid, not showing signs of wilting, curling, or stunting.", "No widespread premature yellowing (chlorosis) or browning (necrosis), except for natural senescence on the lowest leaves of mature plants.", "Midrib is pale green or whitish and structurally sound."], "stems": ["Stalk is thick, sturdy, upright, and green.", "Internodes are well-formed and free of discoloration, lesions, or physical damage."], "fruit": ["Ears (if present) are well-formed with green, tight husks.", "Developing kernels are plump and arranged in uniform rows.", "No visible mold, rot, or insect damage on husks or silks."], "roots": [], "whole_plant": ["Exhibits vigorous, upright growth with a stature normal for its developmental stage and variety.", "Normal plant architecture, including tassel and ear placement."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "Gray Leaf Spot", "condition_id": "corn.fungal.gray_leaf_spot", "key_differences": ["Healthy leaves are uniformly green, while early GLS appears as tiny, tan, rectangular spots bounded by veins.", "Healthy leaves have a smooth texture; GLS lesions are visually distinct interruptions in the leaf color.", "Natural senescence on healthy plants causes lower leaves to yellow uniformly from the tip down the midrib in a 'V' shape, whereas GLS lesions are distinct, blocky spots that can appear on any leaf."]}, {"condition_name": "Common Rust", "condition_id": "corn.fungal.common_rust", "key_differences": ["Healthy leaves have a smooth epidermis, whereas common rust produces raised, cinnamon-brown, powdery pustules (uredinia) that rupture the leaf surface.", "The pustules of common rust can be physically felt as rough bumps, unlike the smooth surface of a healthy leaf.", "Pustules are scattered on both upper and lower leaf surfaces, which is a clear deviation from the unblemished surface of a healthy plant."]}, {"condition_name": "Bacterial Leaf Streak", "condition_id": "corn.bacterial.bacterial_leaf_streak", "key_differences": ["Healthy leaves show no streaking, while BLS is characterized by long, narrow, wavy-edged, tan or water-soaked streaks between leaf veins.", "BLS streaks often appear oily or translucent when backlit, a feature absent in healthy leaf tissue.", "The streaks in BLS are a distinct discoloration, unlike the uniform green of a healthy leaf."]}], "management": {"cultural": ["Planting high-quality, certified seed of resistant hybrids.", "Maintaining balanced soil fertility based on soil testing.", "Ensuring proper plant spacing to allow for good air circulation.", "Managing irrigation to provide adequate water without causing waterlogging or drought stress.", "Implementing crop rotation to break potential disease cycles."], "biological": [], "chemical": [], "notes": "Management for a 'healthy' state is preventative, focusing on optimal agronomic practices to minimize plant stress and prevent disease establishment."}, "qa_seeds": {"verification_templates": ["Is this corn plant healthy?", "Does this image show a corn plant with no signs of disease or stress?", "Are the leaves on this corn plant free from lesions, spots, or pustules?", "Can you confirm this corn plant is asymptomatic?", "Is the overall appearance of this plant vigorous and normal?"], "attribute_templates": ["What is the color of the leaves?", "Describe the surface texture of the leaves.", "Are there any spots, streaks, or lesions visible on the leaves?", "How would you describe the plant's overall structure and posture?", "Is there any evidence of yellowing or browning on the leaves?", "What is the condition of the stalk?"], "diagnosis_templates": ["What condition, if any, is affecting this corn plant?", "Based on the absence of symptoms, what is the health status of this corn?", "Is this corn plant suffering from a disease, or is it healthy?"], "counterfactual_templates": ["If this plant had small, raised, cinnamon-colored pustules on its leaves, what condition would it have?", "What would you see on the leaves if this plant were infected with Gray Leaf Spot instead of being healthy?", "If the leaves had long, wavy, water-soaked streaks, would it still be considered healthy?"], "severity_templates": ["What percentage of the total leaf area is affected by symptoms?", "On a scale of none to severe, what is the severity of disease on this plant?", "How many lesions are visible on this leaf?"], "confounders": ["gray_leaf_spot", "common_rust", "bacterial_leaf_streak", "northern_leaf_blight"]}, "data_requirements": {"min_resolution_px": 1024, "min_roi_fraction": 0.4, "lighting_notes": "Use diffuse, even lighting. Avoid harsh, direct sunlight which can cause specular highlights or deep shadows that may obscure or mimic symptoms.", "occlusion_notes": "The plant, particularly the leaves and stalk, should be the primary subject. Minimize occlusion from other plants, weeds, or background objects."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["General university extension guides for corn production", "APS Compendium of Corn Diseases, 4th Edition"]}}
+{"schema_version": "1.0.0", "disease_id": "corn.unknown.maize_lethal_necrosis", "aliases": ["MLN", "Corn Lethal Necrosis"], "crop": {"common_name": "Corn", "scientific_name": "Zea mays", "family": "Poaceae"}, "condition": {"common_name": "Maize Lethal Necrosis", "scientific_name": "Caused by co-infection of Maize chlorotic mottle virus (MCMV) and a potyvirus (e.g., Sugarcane mosaic virus, SCMV)", "alt_names": ["MLN", "Corn Lethal Necrosis Disease (CLND)"], "pathogen": {"type": "disease_viral", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "unknown", "transmission": {"vectors": ["Corn thrips (Frankliniella williamsi)", "Cereal leaf beetle (Oulema melanopus)", "Rootworms (Diabrotica spp.)", "Aphids (e.g., Rhopalosiphum maidis)"], "dispersal": ["Infected seed", "Mechanical transmission via tools or equipment", "Vector movement between plants and fields"], "overwintering": ["Infected crop residues", "Perennial grass hosts", "Infected seed lots"]}, "environmental_risk": {"risk_factors": ["Continuous maize cropping", "High populations of insect vectors", "Planting of susceptible maize varieties", "Late planting dates"], "temp_c_day": [24, 30], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Mild chlorotic mottling or mosaic on a few young leaves, with minimal or no stunting.", "moderate": "Extensive mottling and streaking, noticeable stunting, and necrosis beginning at leaf margins. Some plants may show early 'dead heart' symptoms.", "severe": "Severe stunting, extensive leaf necrosis, 'dead heart' symptom leading to plant death, and poorly formed or absent ears.", "notes": "Severity is assessed on a whole-plant basis due to the systemic nature of the disease. 'Dead heart' refers to the necrosis of the central whorl, which kills the plant's growing point. Leaf wetness is not a primary driver for this vector-borne viral disease, hence the threshold is 0."}, "symptoms": {"leaves": ["Initial fine chlorotic mottle, mosaic, or speckling on young leaves.", "Chlorotic streaks develop parallel to leaf veins.", "Leaf margins turn necrotic (brown and dry), progressing inward and upward from lower leaves.", "In severe cases, entire leaves become desiccated, giving the plant a burnt appearance."], "stems": ["Significant stunting of the plant is a key symptom.", "Internodes are often shortened."], "fruit": ["Poor or no ear development.", "Ears that form are typically small, malformed, and have poor kernel fill.", "Husks may be prematurely dry and tight around the ear."], "roots": ["Root systems are often underdeveloped as a secondary effect of overall plant stunting."], "whole_plant": ["Necrosis of the growing point in the whorl, causing a 'dead heart' symptom which is often lethal.", "Plants may die prematurely, before reaching maturity.", "Tassels may be malformed, sterile, or produce little pollen."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "Maize Streak Virus", "condition_id": "corn.disease_viral.maize_streak_virus", "key_differences": ["MLN causes progressive, widespread necrosis and plant death; MSV causes chlorosis and stunting but is less rapidly lethal.", "MLN features a 'dead heart' symptom (whorl necrosis), which is absent in MSV.", "MSV streaks are very fine and dense ('dots and dashes'), while MLN symptoms begin as a more blotchy mottle before becoming necrotic.", "MLN causes distinct necrosis starting from leaf margins, a symptom not typical of MSV."]}, {"condition_name": "Northern Leaf Blight", "condition_id": "corn.disease_fungal.northern_leaf_blight", "key_differences": ["NLB produces large (2-15 cm), distinct, cigar-shaped tan lesions, whereas MLN symptoms are systemic (mottle, streaks, marginal necrosis).", "MLN symptoms are often most severe on young, upper leaves, while NLB lesions typically start on lower leaves and move up.", "MLN causes whole-plant stunting and death, which are not primary symptoms of NLB."]}], "management": {"cultural": ["Plant certified disease-free seed from reputable sources.", "Use MLN-tolerant or resistant maize hybrids.", "Implement crop rotation with non-cereal crops to break the disease cycle.", "Enforce a 'maize-free' period to eliminate local inoculum and vector hosts.", "Control weed and volunteer grass hosts in and around fields."], "biological": ["Conserve and promote natural enemies of insect vectors like aphids and thrips."], "chemical": ["Use seed treatments with systemic insecticides to protect seedlings from early vector feeding.", "Apply foliar insecticides to manage high vector populations, though this is often not economically viable for controlling MLN alone."], "notes": "An integrated approach combining host resistance, clean seed, cultural practices, and vector management is essential for controlling MLN. There are no virucides to treat infected plants."}, "qa_seeds": {"verification_templates": ["Is there a yellow mottle or mosaic pattern on the leaves?", "Are the edges of the leaves brown and dead?", "Does the plant appear severely stunted?", "Is the central whorl of the plant brown and dead?", "Are the ears, if any, small and poorly developed?", "Is the whole plant dying prematurely?"], "attribute_templates": ["What is the primary symptom on the leaves?", "Describe the condition of the plant's growing point.", "Where is the necrosis located on the leaf?", "How does the plant's height compare to a healthy plant?", "What do the ears look like?", "What is the overall health of the plant?"], "diagnosis_templates": ["What disease causes severe stunting, leaf margin necrosis, and a 'dead heart' in corn?", "Based on the combination of chlorotic mottling and premature plant death, what is the diagnosis?", "The corn plant has small, deformed ears and its leaves are dying from the edges inward. What is the likely disease?"], "counterfactual_templates": ["If the plant only had fine, dense, broken yellow streaks without the widespread necrosis, what might it be?", "If the dead tissue was in the form of large, distinct, cigar-shaped lesions, what disease would it be instead?"], "severity_templates": ["How severe is the maize lethal necrosis infection?", "Is the stunting on this plant mild, moderate, or severe?", "Based on the 'dead heart' symptom and extent of necrosis, what is the severity level?"], "confounders": ["maize_streak_virus", "northern_leaf_blight", "bacterial_leaf_streak"]}, "data_requirements": {"min_resolution_px": 1024, "min_roi_fraction": 0.4, "lighting_notes": "Diffuse, even lighting is required to see subtle mottling. Avoid hard shadows or direct sun that can wash out colors.", "occlusion_notes": "A clear view of the whole plant, especially the upper leaves and central whorl, is necessary to assess stunting and 'dead heart' symptoms."}, "provenance": {"created_by": "expert_plant_pathologist_vqa_designer", "reviewed_by": "expert_plant_pathologist_vqa_designer", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["CIMMYT Maize Lethal Necrosis (MLN) portal", "APS Compendium of Corn Diseases", "University extension guides on corn diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "corn.disease_viral.maize_streak_virus", "aliases": ["MSV", "Maize streak disease", "MSD"], "crop": {"common_name": "Corn", "scientific_name": "Zea mays", "family": "Poaceae"}, "condition": {"common_name": "Maize Streak Virus", "scientific_name": "Maize streak virus", "alt_names": ["MSV"], "pathogen": {"type": "disease_viral", "taxonomy": {"kingdom": "Orthornavirae", "phylum": "Cressdnaviricota", "class": "Repensiviricetes", "order": "Geplanavirales", "family": "Geminiviridae", "genus": "Mastrevirus", "species": "Maize streak virus"}}}, "issue_type": "disease_viral", "transmission": {"vectors": ["Leafhoppers (family Cicadellidae), primarily species in the genus Cicadulina (e.g., Cicadulina mbila)"], "dispersal": ["Movement of infective leafhopper vectors between plants and across fields."], "overwintering": ["Infected perennial grasses, volunteer maize plants, and within the adult leafhopper vector."]}, "environmental_risk": {"risk_factors": ["Presence of leafhopper vector populations.", "Warm, humid conditions that favor vector breeding and movement.", "Planting of susceptible maize varieties.", "Staggered planting dates which allow vectors to move from older infected crops to younger susceptible ones."], "temp_c_day": [25, 35], "temp_c_night": [], "relative_humidity_pct": [60, 90]}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area shows chlorotic streaks. Stunting is minimal or not apparent.", "moderate": "11-40% of leaf area is covered in streaks. Noticeable stunting and some reduction in ear size is visible.", "severe": ">40% of leaf area is affected; leaves may be almost entirely yellow or white. Severe stunting, poor or no ear formation, and potential plant death.", "notes": "Severity is strongly linked to the plant's growth stage at the time of infection. Early infections (before V6 stage) result in the most severe symptoms and yield loss."}, "symptoms": {"leaves": ["Initial symptoms appear as small, circular, pale-yellow to white spots on the youngest leaves.", "Spots elongate into narrow, broken, chlorotic streaks that run parallel to the leaf veins.", "Streaks are typically 1-2 mm wide and can be several centimeters long.", "Streaks are sharply defined and do not cross leaf veins.", "In severe cases, streaks can merge, causing the entire leaf to appear yellow or white.", "Symptoms are most prominent on new leaves that emerge after infection; older leaves may remain green.", "Streaks are often more concentrated at the base of the leaf blade."], "stems": ["Internodes may be shortened, contributing to a stunted plant."], "fruit": ["Ears (cobs) are often small, deformed, or have poor kernel fill.", "Tassels may be small or emerge late in severely affected plants."], "roots": [], "whole_plant": ["Stunting is a characteristic symptom, with severity depending on the age of the plant at infection.", "Early infection can lead to premature plant death."], "signs_microscopic_or_visible": ["No visible signs of the pathogen (e.g., fungal growth, bacterial ooze) are present."]}, "lookalikes": [{"condition_name": "Bacterial Leaf Streak", "condition_id": "corn.disease_bacterial.bacterial_leaf_streak", "key_differences": ["Bacterial streaks have wavy, irregular margins, whereas MSV streaks are straight and strictly parallel to veins.", "Bacterial streaks often appear oily or water-soaked, especially when young, unlike the dry, chlorotic streaks of MSV.", "When held to the light, bacterial streaks are translucent, while MSV streaks are opaque yellow/white."]}, {"condition_name": "Maize Lethal Necrosis", "condition_id": "corn.disease_viral.maize_lethal_necrosis", "key_differences": ["MLN causes a general mosaic or mottle, often starting from leaf margins, not the fine, discrete parallel streaks of MSV.", "MLN frequently causes a 'dead heart' symptom where the whorl dies and dries out; this is not typical for MSV.", "MLN progresses rapidly to extensive necrosis (browning/death) of leaf and plant tissue, while MSV is primarily a chlorotic (yellowing) disease."]}], "management": {"cultural": ["Planting resistant or tolerant maize varieties is the most effective control measure.", "Early and synchronized planting to help the crop escape peak vector populations.", "Removal and destruction (roguing) of infected plants early in the season to reduce inoculum.", "Control of alternative hosts like wild grasses and volunteer maize plants."], "biological": ["Conservation of natural predators and parasitoids of leafhoppers."], "chemical": ["Seed treatment with systemic insecticides to protect young seedlings from vector feeding.", "Foliar insecticide applications to control leafhopper populations, though often not economically feasible for subsistence farmers."], "notes": "An integrated approach combining host resistance, cultural practices, and targeted chemical control (if necessary) is most effective. Management is focused on the vector, not the virus itself."}, "qa_seeds": {"verification_templates": ["Does this image show thin, yellow or white streaks running parallel to the leaf veins?", "Is the corn plant in the photo noticeably stunted compared to what is expected for its age?", "Can you confirm the presence of fine, broken, chlorotic lines on the upper leaves?", "Is there evidence of a disease causing parallel streaking on the corn leaves?", "Are the symptoms concentrated on the newest growth?"], "attribute_templates": ["What is the orientation of the streaks on the leaf?", "Describe the color and width of the lesions.", "Is the overall plant size reduced or normal?", "Which part of the plant shows the most severe symptoms?", "Are the edges of the streaks sharp or diffuse?", "Do the streaks appear water-soaked or dry?"], "diagnosis_templates": ["Given the fine, parallel chlorotic streaks and plant stunting, what disease is this?", "What vector-borne viral disease causes these sharply defined yellow lines on corn leaves?", "Based on the symptoms, is this maize streak virus or maize lethal necrosis?"], "counterfactual_templates": ["If these streaks were wider, rectangular, and tan, what disease would it likely be?", "What would the symptoms look like if this were common rust instead of a viral disease?", "If the plant were healthy, what would be different about its leaves?"], "severity_templates": ["What percentage of this leaf's surface is covered by chlorotic streaks?", "On a scale of mild, moderate, or severe, how would you classify this infection?", "Based on the level of stunting and leaf yellowing, how severe is this case of maize streak virus?"], "confounders": ["bacterial_leaf_streak", "maize_lethal_necrosis", "healthy"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.4, "lighting_notes": "Use diffuse, even lighting. Avoid harsh midday sun which can create shadows that obscure the fine streaks. Overcast conditions are ideal.", "occlusion_notes": "Ensure the symptomatic leaf is not heavily occluded by other leaves or weeds. A clear view of the leaf pattern is essential for diagnosis."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["APS Compendium of Corn Diseases", "CIMMYT Maize Doctor", "General university extension plant pathology guides"]}}
+{"schema_version": "1.0.0", "disease_id": "corn.disease_fungal.northern_leaf_blight", "aliases": ["NLB", "Turcicum leaf blight"], "crop": {"common_name": "Corn", "scientific_name": "Zea mays", "family": "Poaceae"}, "condition": {"common_name": "Northern Leaf Blight", "scientific_name": "Exserohilum turcicum", "alt_names": ["Turcicum leaf blight"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Pleosporales", "family": "Pleosporaceae", "genus": "Exserohilum", "species": "turcicum"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["windborne conidia", "rain splash"], "overwintering": ["infested corn residue on soil surface", "infected seed (rare)"]}, "environmental_risk": {"risk_factors": ["high humidity", "prolonged leaf wetness", "moderate temperatures", "susceptible hybrid", "no-till or reduced tillage systems"], "temp_c_day": [18, 27], "temp_c_night": [], "relative_humidity_pct": [80, 100], "leaf_wetness_hours_threshold": 6}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-5% of leaf area affected; few, scattered lesions, primarily on lower leaves.", "moderate": "6-25% of leaf area affected; numerous lesions on lower and middle leaves, some coalescence.", "severe": ">25% of leaf area affected; extensive lesions on all leaves, significant coalescence, and leaf death.", "notes": "Severity is assessed on the whole plant, considering the percentage of total photosynthetic area destroyed by lesions. Focus on leaves at and above the ear leaf for yield impact assessment."}, "symptoms": {"leaves": ["Initial lesions are small, water-soaked, and elliptical.", "Mature lesions are large, cigar-shaped or elliptical, and tan-to-gray in color.", "Lesions range from 2.5 to 15 cm (1 to 6 inches) in length.", "Lesions typically have distinct, darker borders.", "Under humid conditions, lesions appear olive-green to black due to fungal sporulation.", "Lesions often start on lower leaves and progress up the plant.", "Multiple lesions can coalesce, blighting large areas of the leaf.", "Lesions run parallel to the leaf veins but are not strictly limited by them."], "stems": ["Typically unaffected."], "fruit": ["Husks may develop lesions in severe cases, but kernels are not directly infected."], "roots": ["Unaffected."], "whole_plant": ["In severe infections, plants appear blighted or fired, resembling frost or drought damage."], "signs_microscopic_or_visible": ["Dark, olive-green to black sporulation (conidia and conidiophores) visible within lesions, especially with a hand lens or under humid conditions."]}, "lookalikes": [{"condition_name": "Gray Leaf Spot", "condition_id": "corn.disease_fungal.gray_leaf_spot", "key_differences": ["GLS lesions are narrow, rectangular, and strictly limited by leaf veins, unlike the wider, cigar-shaped NLB lesions.", "GLS lesions are typically gray to tan, while mature NLB lesions are tan with darker borders.", "GLS lesions are generally smaller (up to 5 cm) than mature NLB lesions (up to 15 cm)."]}, {"condition_name": "Bacterial Leaf Streak", "condition_id": "corn.disease_bacterial.bacterial_leaf_streak", "key_differences": ["Bacterial streak lesions are very narrow, have wavy edges, and appear oily or water-soaked, especially when backlit.", "Bacterial streak lesions are often yellow or tan and can produce ooze, unlike the dry, cigar-shaped NLB lesions.", "NLB lesions are much wider and more elliptical than the fine streaks of bacterial leaf streak."]}, {"condition_name": "Maize Lethal Necrosis", "condition_id": "corn.disease_viral.maize_lethal_necrosis", "key_differences": ["MLN causes systemic yellowing and streaking that often starts from the leaf base or whorl, not discrete, scattered lesions like NLB.", "MLN causes severe stunting of the whole plant and often leads to premature plant death ('dead heart'), which is not a primary symptom of NLB.", "MLN symptoms include malformed ears and tassels, which are not caused by NLB."]}], "management": {"cultural": ["Planting resistant hybrids", "Crop rotation with non-host crops (e.g., soybeans, alfalfa)", "Tillage to bury infected residue", "Managing irrigation to reduce leaf wetness duration"], "biological": ["Some bio-fungicides based on Bacillus species may offer suppression."], "chemical": ["Foliar fungicide application (e.g., strobilurins, triazoles, SDHIs) timed around tasseling (VT) is most effective for yield protection.", "Seed treatments may offer early-season protection in some cases."], "notes": "Integrated management combining resistant hybrids, cultural practices, and judicious fungicide use is the most effective strategy."}, "qa_seeds": {"verification_templates": ["Does this corn leaf show signs of northern leaf blight?", "Is the primary symptom on this leaf a large, cigar-shaped lesion?", "Can you confirm the presence of elliptical, tan lesions characteristic of NLB?", "Are there multiple tan lesions coalescing on this leaf?", "Is this an example of Exserohilum turcicum infection on corn?"], "attribute_templates": ["What is the shape of the lesion on this leaf?", "What color are the mature lesions?", "Describe the borders of the lesions.", "Are the lesions limited by the leaf veins?", "How long are the largest lesions?", "What part of the plant is most affected?"], "diagnosis_templates": ["Based on the large, elliptical, tan lesions, what disease is affecting this corn plant?", "The presence of cigar-shaped lesions on these corn leaves suggests what fungal disease?", "What condition causes lesions up to 15 cm long that are not restricted by veins?"], "counterfactual_templates": ["If the lesions were narrow, rectangular, and stopped by the veins, what disease might it be instead?", "What would this leaf look like if it had bacterial leaf streak instead of northern leaf blight?"], "severity_templates": ["How severe is the northern leaf blight infection on this leaf?", "What percentage of the leaf area is covered by lesions?", "Is the disease severity considered mild, moderate, or severe based on the rubric?"], "confounders": ["corn.disease_fungal.gray_leaf_spot", "corn.disease_bacterial.bacterial_leaf_streak", "corn.disease_viral.maize_lethal_necrosis"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.2, "lighting_notes": "Even, diffuse lighting is preferred. Avoid harsh shadows or direct sunlight that can obscure lesion color and texture. Backlighting can help reveal water-soaking in early lesions but may obscure surface details.", "occlusion_notes": "Lesions should be clearly visible and not significantly obscured by other leaves, debris, or water droplets. Minor overlap is acceptable if the primary lesion shape is discernible."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2024-05-21T12:00:00Z", "updated_at": "2024-05-21T12:00:00Z", "sources": ["University extension guides for corn diseases", "APS Compendium of Corn Diseases", "General plant pathology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "cucumber.disease_fungal.anthracnose", "aliases": ["cucurbit anthracnose"], "crop": {"common_name": "cucumber", "scientific_name": "Cucumis sativus", "family": "Cucurbitaceae"}, "condition": {"common_name": "anthracnose", "scientific_name": "Colletotrichum orbiculare", "alt_names": ["leaf spot", "fruit rot"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Sordariomycetes", "order": "Glomerellales", "family": "Glomerellaceae", "genus": "Colletotrichum", "species": "orbiculare"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["rain splash", "wind-driven rain", "contaminated equipment", "infected seed", "field workers"], "overwintering": ["infected crop debris", "on volunteer cucurbit plants", "in or on seed"]}, "environmental_risk": {"risk_factors": ["high humidity", "frequent rainfall", "overhead irrigation", "warm temperatures", "poor air circulation"], "temp_c_day": [22, 28], "temp_c_night": [], "relative_humidity_pct": [90, 100], "leaf_wetness_hours_threshold": 8}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area affected with small, distinct lesions. No stem or fruit symptoms.", "moderate": "11-40% of leaf area affected; some lesions are coalescing. Minor stem or fruit lesions may be present.", "severe": ">40% of leaf area affected, often with significant defoliation. Stem cankers and/or deep, sunken fruit lesions are present.", "notes": "Severity is primarily assessed by foliar damage, but the presence of any fruit lesions automatically elevates the rating to at least 'moderate' due to marketability loss."}, "symptoms": {"leaves": ["Begins as small, water-soaked spots.", "Spots enlarge into circular lesions, 1-2 cm in diameter, that turn brown to black.", "A distinct yellow halo may surround the dark lesions.", "The center of older lesions becomes dry, brittle, and often falls out, creating a 'shot-hole' appearance."], "stems": ["Develops shallow, elongated, water-soaked cankers.", "Cankers turn tan to black and can girdle the stem, causing wilting above the infection site."], "fruit": ["Circular, black, sunken cankers appear on the fruit surface.", "Cankers can be up to 2 cm in diameter and penetrate deep into the flesh.", "Lesions may have a raised black rim and a slightly lighter center.", "In humid conditions, the center of fruit lesions exudes pink to orange gelatinous spore masses."], "roots": [], "whole_plant": ["In severe cases, wilting of vines can occur due to stem girdling.", "Overall plant vigor is reduced, leading to smaller or unmarketable fruit."], "signs_microscopic_or_visible": ["Pink to orange, gelatinous spore masses (acervuli) are visible in the center of lesions, especially on fruit and stems, during periods of high humidity."]}, "lookalikes": [{"condition_name": "gummy stem blight", "condition_id": "cucumber.disease_fungal.gummy_stem_blight", "key_differences": ["Gummy stem blight lesions, especially on stems, often exude a characteristic amber-colored gum; anthracnose does not.", "Gummy stem blight leaf lesions are often wedge-shaped starting from the margin, while anthracnose spots are typically circular.", "Gummy stem blight produces tiny black specks (pycnidia) within lesions, whereas anthracnose may show pink/orange spore masses (acervuli)."]}, {"condition_name": "downy mildew", "condition_id": "cucumber.disease_oomycete.downy_mildew", "key_differences": ["Downy mildew spots are angular, bounded by leaf veins, and yellow-green, not circular and black like anthracnose.", "Downy mildew produces a purplish-gray, fuzzy growth on the underside of leaves in humid conditions, not pink/orange masses.", "Anthracnose can cause a 'shot-hole' effect in leaves and also infects fruit, which are not symptoms of downy mildew."]}, {"condition_name": "belly rot", "condition_id": "cucumber.disease_fungal.belly_rot", "key_differences": ["Belly rot primarily affects the part of the fruit in contact with the soil; anthracnose can appear anywhere on the fruit.", "Belly rot lesions are initially tan and water-soaked, becoming brown and crusty, not black and sunken like anthracnose.", "Belly rot does not produce the pink/orange spore masses characteristic of anthracnose."]}], "management": {"cultural": ["Plant certified disease-free seed and resistant varieties.", "Implement a crop rotation of at least 2 years with non-cucurbit crops.", "Ensure proper plant spacing to promote air circulation and rapid leaf drying.", "Use drip irrigation to avoid wetting foliage.", "Remove and destroy infected crop debris promptly after harvest."], "biological": ["Application of bio-fungicides containing strains of *Bacillus subtilis* or *Trichoderma* may provide some suppression."], "chemical": ["Apply preventative fungicides, especially during warm, wet weather.", "Effective active ingredients include chlorothalonil, mancozeb, and strobilurin-class fungicides (e.g., azoxystrobin).", "Alternate fungicide modes of action to prevent the development of pathogen resistance."], "notes": "An integrated pest management (IPM) approach combining cultural practices with judicious fungicide use is most effective."}, "qa_seeds": {"verification_templates": ["Does this cucumber leaf show a dark, circular spot with a hole in the middle?", "Is there a black, sunken spot on this cucumber fruit?", "Can you see a pink or orange slimy substance in the center of the lesion on this fruit?", "Are the spots on the leaves circular and dark, rather than angular and yellow?", "Does this stem have an elongated, dark canker?", "Is there a yellow halo surrounding the dark spot on this leaf?"], "attribute_templates": ["What is the shape of the lesion on this fruit?", "Describe the color of the spots on the leaves.", "Is the center of the leaf spot intact or has it fallen out?", "What is the texture of the fruit lesion (e.g., raised, sunken, flat)?", "Is there any oozing or substance visible within the lesion? If so, what color is it?", "Are the leaf spots scattered or concentrated at the leaf margin?"], "diagnosis_templates": ["What disease causes circular, black, sunken cankers on cucumber fruit, sometimes with pink spore masses?", "A cucumber leaf has a dark spot with a 'shot-hole' appearance. What is the likely disease?", "Based on the combination of circular leaf spots and sunken fruit rot, what is the diagnosis for this cucumber plant?"], "counterfactual_templates": ["If the spots on the leaf were angular and had purple fuzz underneath, would it still be anthracnose?", "If the stem lesion was exuding a sticky, amber-colored gum, could this be anthracnose?", "If the fruit rot was a soft, watery mush starting from the blossom end, would it be anthracnose?"], "severity_templates": ["What percentage of this leaf's surface is affected by anthracnose lesions?", "Based on the widespread leaf spots and sunken fruit lesions, how would you rate the disease severity?", "Are the lesions on this plant few and scattered (mild) or numerous and coalescing (severe)?"], "confounders": ["gummy_stem_blight", "downy_mildew", "belly_rot"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Use even, diffuse lighting. Avoid direct sunlight that creates harsh shadows or overexposure, which can obscure lesion details like color, texture, and the presence of spore masses.", "occlusion_notes": "The primary symptomatic area (leaf, fruit, or stem) should be in focus and not significantly obscured by other plant parts, soil, or debris."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "N/A", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University Extension Plant Disease Guides", "APS Compendium of Cucurbit Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "cucumber.disease_bacterial.bacterial_wilt", "aliases": ["Cucurbit bacterial wilt"], "crop": {"common_name": "cucumber", "scientific_name": "Cucumis sativus", "family": "Cucurbitaceae"}, "condition": {"common_name": "Bacterial Wilt", "scientific_name": "Erwinia tracheiphila", "alt_names": [], "pathogen": {"type": "bacterium", "taxonomy": {"kingdom": "Bacteria", "phylum": "Proteobacteria", "class": "Gammaproteobacteria", "order": "Enterobacterales", "family": "Erwiniaceae", "genus": "Erwinia", "species": "tracheiphila"}}}, "issue_type": "disease_bacterial", "transmission": {"vectors": ["striped cucumber beetle (Acalymma vittatum)", "spotted cucumber beetle (Diabrotica undecimpunctata howardi)"], "dispersal": ["Vector feeding activity"], "overwintering": ["In the digestive tracts of adult cucumber beetles"]}, "environmental_risk": {"risk_factors": ["High populations of cucumber beetle vectors", "Warm temperatures favoring beetle activity", "Planting susceptible cultivars"], "temp_c_day": [24, 32], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "One or two runners show wilting during the heat of the day, but may partially recover at night. Plant is still mostly upright.", "moderate": "Multiple runners or a significant portion of the plant (>30%) is permanently wilted and does not recover.", "severe": "The entire plant is collapsed, wilted, and dying or dead.", "notes": "Severity is based on the proportion of the plant showing irreversible wilting. Since the disease is systemic and vectored, leaf wetness is not a primary infection factor; a value of 0 is used as a placeholder."}, "symptoms": {"leaves": ["Individual leaves suddenly wilt, appearing limp and dull green.", "Wilting occurs rapidly without significant prior yellowing or spotting.", "Affected leaves eventually turn necrotic and brown but remain attached to the vine.", "Wilting often starts on a single leaf before spreading to the entire runner."], "stems": ["Entire vines (runners) wilt, often starting from the tip and progressing towards the base.", "Stems appear healthy externally, even when attached leaves are fully wilted.", "A cut stem, when squeezed, may exude a sticky, whitish bacterial slime."], "fruit": ["Fruit on affected vines may be small, shriveled, or misshapen.", "Infection often kills the plant before significant fruit can develop."], "roots": ["Roots remain healthy in appearance as the infection is confined to the vascular (xylem) tissue of the stems."], "whole_plant": ["Sudden and irreversible wilting of one or more runners.", "Rapid collapse of the entire plant, often within a week of first symptoms.", "Wilting occurs even when soil moisture is adequate."], "signs_microscopic_or_visible": ["A sticky, stringy bacterial ooze can be seen when a freshly cut infected stem is pressed together and slowly pulled apart."]}, "lookalikes": [{"condition_name": "Gummy Stem Blight", "condition_id": "cucumber.disease_fungal.gummy_stem_blight", "key_differences": ["Gummy stem blight causes distinct tan cankers or lesions on the stem, often exuding an amber-colored gummy substance; bacterial wilt does not cause stem cankers.", "The wilting from gummy stem blight is often slower and directly associated with a girdling stem canker, whereas bacterial wilt is a rapid, systemic wilt.", "The bacterial ooze test is positive for bacterial wilt and negative for gummy stem blight.", "Gummy stem blight can also cause large, circular, water-soaked leaf spots, which are absent in bacterial wilt."]}, {"condition_name": "Anthracnose", "condition_id": "cucumber.disease_fungal.anthracnose", "key_differences": ["Anthracnose causes circular, water-soaked leaf spots that turn dark and may develop a 'shot-hole' appearance; bacterial wilt causes wilting of whole leaves without spots.", "Anthracnose produces sunken, dark, circular lesions on fruit, a symptom not caused by bacterial wilt.", "Vine decline from anthracnose is associated with visible stem cankers, unlike the clean wilt from bacterial wilt."]}], "management": {"cultural": ["Control cucumber beetle populations from the moment seedlings emerge.", "Use floating row covers to physically exclude beetles, removing them at flowering to allow for pollination.", "Remove and destroy infected plants immediately to reduce the source of bacteria for beetles to spread.", "Plant a trap crop of a highly attractive cucurbit variety on the field perimeter before planting the main crop."], "biological": ["Encourage natural predators of cucumber beetles."], "chemical": ["Apply insecticides targeted at cucumber beetles, especially during the seedling and early vine-running stages.", "Perimeter trap-crop spraying can reduce insecticide use on the main crop.", "Consult local extension service recommendations for registered and effective products."], "notes": "Management is entirely focused on preventing the cucumber beetle vector from feeding and transmitting the bacteria. There is no cure for an infected plant."}, "qa_seeds": {"verification_templates": ["Is an entire vine of this cucumber plant wilted?", "Does the plant appear limp and dehydrated?", "Can you see evidence of sudden wilting on this plant?", "Are the leaves drooping down?", "Is this cucumber plant collapsing?"], "attribute_templates": ["Are the wilted leaves free of spots or yellow halos?", "Does the wilting seem to affect a whole runner rather than just the lower leaves?", "Is the stem itself free of cankers or lesions?", "Can you see any cucumber beetles or their feeding damage on the leaves?", "Are nearby plants still healthy, suggesting a rapid, localized issue?"], "diagnosis_templates": ["What disease causes rapid, complete wilting of cucumber vines without stem lesions?", "Based on the sudden collapse of the plant, what is the likely disease?", "A cucumber plant is wilted but the soil is wet. What is the diagnosis?"], "counterfactual_templates": ["If the stem had a large, tan lesion with gummy ooze, could this be bacterial wilt?", "If the leaves had angular, yellow spots instead of wilting, what disease might it be?", "If the plant recovered fully after watering, would it still be bacterial wilt?"], "severity_templates": ["Is this a mild case with only one wilted runner, or a severe case with the whole plant collapsed?", "How would you rate the wilt severity on a scale of mild, moderate, and severe?", "What percentage of the plant appears to be wilted?"], "confounders": ["gummy_stem_blight", "anthracnose"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.4, "lighting_notes": "Bright, diffuse light is ideal. Avoid harsh shadows or direct sunlight that can create glare and obscure leaf turgor.", "occlusion_notes": "The overall plant structure and the transition from healthy to wilted parts should be clearly visible. Avoid images where affected vines are heavily obscured by healthy ones."}, "provenance": {"created_by": "AI Plant Pathologist", "reviewed_by": "VQA Dataset Designer", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["University extension plant pathology guides", "APS Compendium of Cucurbit Diseases, Second Edition"]}}
+{"schema_version": "1.0.0", "disease_id": "cucumber.unknown.belly_rot", "aliases": ["Rhizoctonia fruit rot", "soil rot"], "crop": {"common_name": "cucumber", "scientific_name": "Cucumis sativus", "family": "Cucurbitaceae"}, "condition": {"common_name": "belly rot", "scientific_name": "Rhizoctonia solani", "alt_names": ["Rhizoctonia fruit rot", "soil rot"], "pathogen": {"type": "fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Basidiomycota", "class": "Agaricomycetes", "order": "Cantharellales", "family": "Ceratobasidiaceae", "genus": "Rhizoctonia", "species": "solani"}}}, "issue_type": "unknown", "transmission": {"vectors": [], "dispersal": ["contaminated soil", "water splash", "infected plant debris", "farm equipment"], "overwintering": ["as sclerotia in soil", "on infected plant debris", "as mycelium in soil"]}, "environmental_risk": {"risk_factors": ["fruit contact with soil", "poorly drained soil", "high soil moisture", "warm temperatures (24-32°C)", "dense canopy", "poor air circulation"], "temp_c_day": [24, 32], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 12}, "severity_rubric": {"unit": "qualitative", "mild": "Small, water-soaked or sunken lesions affect 1-10% of the fruit surface.", "moderate": "Larger, coalescing, tan to brown lesions affect 11-40% of the fruit surface, possibly with some mycelial growth.", "severe": "Large, sunken, necrotic lesions cover >40% of the fruit surface, often with significant secondary rot and visible brown mycelium.", "notes": "Severity is assessed qualitatively based on the percentage of the individual fruit's surface area covered by lesions. This is practical for visual labeling of fruit images."}, "symptoms": {"leaves": [], "stems": ["Water-soaked lesions may appear on the stem near the soil line.", "Stem can become constricted or girdled at the base, causing wilting (damping-off in seedlings)."], "fruit": ["Starts as small, water-soaked, slightly sunken, round spots on the part of the fruit touching the soil.", "Lesions enlarge and become tan to brown, crater-like, and may have concentric rings.", "The center of the lesion may crack or rupture.", "In moist conditions, coarse, brown mycelial threads may be visible on the lesion surface.", "The rot is initially firm and dry but becomes soft and watery due to secondary invaders.", "Affected fruit tissue does not become mushy or watery as in Pythium rot until late stages."], "roots": [], "whole_plant": ["Wilting may occur if the stem base is severely infected."], "signs_microscopic_or_visible": ["Coarse, brown, web-like mycelium visible on lesions under humid conditions.", "Small, dark, irregularly shaped sclerotia may form on or in rotted tissue."]}, "lookalikes": [{"condition_name": "Pythium fruit rot", "condition_id": "cucumber.disease.pythium_fruit_rot", "key_differences": ["Pythium rot is very soft, watery, and mushy from the start; belly rot is initially firm and dry.", "Pythium rot is covered in abundant white, cottony mycelial growth; belly rot has sparse, coarse, brown mycelium.", "Pythium rot causes the fruit to collapse into a watery mass rapidly.", "Belly rot lesions are more crater-like and tan/brown; Pythium lesions are less defined."]}, {"condition_name": "anthracnose", "condition_id": "cucumber.disease.anthracnose", "key_differences": ["Anthracnose fruit lesions are circular, black, and distinctly sunken.", "In moist weather, the center of anthracnose lesions turns pinkish-orange due to spore masses.", "Anthracnose also causes distinct, water-soaked lesions on leaves, which belly rot does not."]}], "management": {"cultural": ["Use plastic mulch, straw, or trellising to prevent fruit from touching the soil.", "Improve soil drainage and avoid over-irrigation.", "Promote good air circulation through proper plant spacing.", "Practice a crop rotation of at least 3 years with non-host crops like grains.", "Remove and destroy infected fruit and plant debris promptly."], "biological": ["Application of bio-fungicides containing *Trichoderma* spp. or *Bacillus subtilis* to the soil may suppress the pathogen."], "chemical": ["Apply preventative soil-directed fungicides at the base of plants before vining.", "Fungicides containing azoxystrobin, flutolanil, or pentachloronitrobenzene (PCNB) can be effective when applied to the soil."], "notes": "Integrated management focusing on preventing fruit-soil contact and managing soil moisture is most effective."}, "qa_seeds": {"verification_templates": ["Is there a tan or brown sunken lesion on the part of the cucumber touching the ground?", "Does the fruit show any signs of rot on its underside?", "Are there any crater-like spots on the cucumber fruit?", "Can you see any coarse, brown, web-like threads on the fruit's surface?", "Is the fruit pictured?"], "attribute_templates": ["What color is the lesion on the fruit?", "Describe the texture of the rot on the cucumber.", "Is the lesion on the fruit sunken or raised?", "Is there any visible fungal growth on the rotten area?", "Where on the fruit is the damage located?", "Does the lesion have concentric rings?"], "diagnosis_templates": ["Based on the firm, tan, sunken lesion on the fruit's belly, what is the likely disease?", "What condition causes crater-like rot on cucumbers where they touch wet soil?", "Is this cucumber affected by belly rot?"], "counterfactual_templates": ["If the rot was very soft and watery with white cottony growth, would it still be belly rot?", "If the sunken spots were black with pinkish centers, what disease would it be instead?", "If there were only angular yellow spots on the leaves, could this be belly rot?"], "severity_templates": ["What percentage of this cucumber's surface is affected by rot?", "How would you rate the severity of belly rot on this fruit: mild, moderate, or severe?", "Is the belly rot on this cucumber considered mild?"], "confounders": ["pythium_fruit_rot", "anthracnose"]}, "data_requirements": {"min_resolution_px": [600, 600], "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse lighting is preferred. Avoid harsh shadows or overexposure that can obscure lesion texture and color.", "occlusion_notes": "The affected area of the fruit should be clearly visible and not obscured by leaves, soil, or other objects."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University extension guides for cucurbit diseases", "APS Compendium of Cucurbit Diseases", "General plant pathology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "cucumber.disease_fungal.downy_mildew", "aliases": ["cucurbit downy mildew", "false mildew"], "crop": {"common_name": "cucumber", "scientific_name": "Cucumis sativus", "family": "Cucurbitaceae"}, "condition": {"common_name": "downy mildew", "scientific_name": "Pseudoperonospora cubensis", "alt_names": [], "pathogen": {"type": "disease_oomycete", "taxonomy": {"kingdom": "Stramenopila", "phylum": "Oomycota", "class": "Oomycetes", "order": "Peronosporales", "family": "Peronosporaceae", "genus": "Pseudoperonospora", "species": "cubensis"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["Windborne sporangia", "Water splash"], "overwintering": ["On living plant material in frost-free regions", "Does not typically survive in soil or on crop debris in cold climates"]}, "environmental_risk": {"risk_factors": ["High relative humidity (>85%)", "Prolonged leaf wetness (6+ hours)", "Cool nights and warm, humid days", "Dense plant canopies with poor air circulation"], "temp_c_day": [15, 25], "temp_c_night": [10, 20], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 6}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area shows distinct, angular, chlorotic lesions. Little to no necrosis.", "moderate": "11-40% of leaf area affected. Lesions are coalescing, turning necrotic (tan/brown), and some upward leaf curling is visible.", "severe": ">40% of leaf area is necrotic. Widespread defoliation is occurring, exposing fruit to sunscald.", "notes": "Assessment should be based on the most affected leaves. The percentage includes both yellow (chlorotic) and brown (necrotic) areas caused by the disease."}, "symptoms": {"leaves": ["Initial symptoms are pale green to yellow, angular spots on the upper leaf surface.", "Lesions are sharply defined and bounded by leaf veins, creating a blocky or mosaic-like pattern.", "As the disease progresses, lesions enlarge and turn bright yellow, then tan-brown and necrotic.", "Affected leaves may curl upwards at the margins.", "Severely infected leaves die but often remain attached to the vine."], "stems": ["Stems are typically not directly affected."], "fruit": ["Fruit may be undersized, misshapen, or have poor flavor due to reduced photosynthesis from defoliation.", "Sunscald can occur on fruit exposed after premature defoliation."], "roots": ["Roots are not directly affected by the pathogen."], "whole_plant": ["Infection often starts on older, crown leaves and progresses outwards.", "Severe infections can cause rapid and complete defoliation of the plant."], "signs_microscopic_or_visible": ["A key diagnostic sign is a purplish to grey, downy or fuzzy growth on the underside (abaxial surface) of the leaves, corresponding to the lesions above.", "This fuzzy growth consists of sporangiophores and sporangia and is most visible in the early morning or during periods of high humidity."]}, "lookalikes": [{"condition_name": "anthracnose", "condition_id": "cucumber.disease_fungal.anthracnose", "key_differences": ["Anthracnose lesions are circular or sub-circular, not angular and vein-limited like downy mildew.", "Anthracnose lesions often have a dark border and a lighter, sometimes sunken, center which may develop a 'shot-hole' appearance.", "Anthracnose also causes distinct, circular, black, sunken cankers on the fruit, a symptom absent in downy mildew."]}, {"condition_name": "gummy_stem_blight", "condition_id": "cucumber.disease_fungal.gummy_stem_blight", "key_differences": ["Gummy stem blight often causes large, V-shaped lesions extending from the leaf margin, not scattered angular spots.", "A defining symptom of gummy stem blight is the presence of cankers on the stem that exude a characteristic amber-colored gummy substance.", "Downy mildew does not produce symptoms on the stem."]}], "management": {"cultural": ["Plant resistant or tolerant cucumber varieties.", "Maximize air circulation by increasing plant spacing and using trellising.", "Avoid overhead irrigation to minimize leaf wetness duration; use drip irrigation instead.", "Scout plants regularly, especially the undersides of leaves, for early detection."], "biological": ["Biofungicides based on *Bacillus* species or neem oil may provide some preventative suppression but are generally less effective than chemical options during high disease pressure."], "chemical": ["Apply preventative fungicides when environmental conditions are favorable for disease development.", "Ensure thorough spray coverage, especially on the undersides of leaves where the pathogen sporulates.", "Rotate fungicides with different modes of action (FRAC groups) to manage the risk of resistance."], "notes": "Downy mildew is an aggressive pathogen that can overcome host resistance and develop fungicide resistance rapidly. Timely and preventative management is critical."}, "qa_seeds": {"verification_templates": ["Are the yellow spots on the leaf surface angular and bounded by the leaf veins?", "Can you see a fuzzy, purplish-grey growth on the underside of the leaf?", "Does the pattern of spots on the leaf look like a checkerboard or mosaic?", "Is the stem of the plant free of lesions or cankers?", "Are the leaves curling upwards at the edges?"], "attribute_templates": ["What is the shape of the lesions on the upper leaf surface?", "What color is the growth on the bottom of the leaf?", "Are the leaf spots circular or angular?", "Which part of the plant shows the most severe symptoms?", "Describe the pattern of yellowing on the leaf.", "Are the symptoms present on the fruit or stem?"], "diagnosis_templates": ["What disease causes angular, vein-limited yellow spots on cucumber leaves with a downy growth underneath?", "Given the blocky lesions and fuzzy underside, what is the diagnosis?", "What is the most likely cause of rapid defoliation in cucumber when accompanied by purplish mold on the leaves?"], "counterfactual_templates": ["If these lesions were circular and had a dark border, what disease might it be instead?", "What would you suspect if the plant also had amber-colored ooze coming from the stem?", "If the plant was wilting severely during the day but had no leaf spots, what could be the cause?"], "severity_templates": ["What percentage of this leaf's surface is covered by yellow or brown spots?", "Would you classify this infection as mild, moderate, or severe?", "Have the individual angular spots begun to merge into large necrotic patches?"], "confounders": ["anthracnose", "gummy_stem_blight"]}, "data_requirements": {"min_resolution_px": 1024, "min_roi_fraction": 0.4, "lighting_notes": "Use diffuse, even lighting. Avoid hard shadows and overexposure. An in-focus image of the leaf underside is critical for a definitive diagnosis.", "occlusion_notes": "Ensure the symptomatic leaf is clearly visible and not significantly obscured by other leaves or structures. The overall pattern of lesions on the leaf is important."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "N/A", "created_at": "2023-10-27T11:20:00Z", "updated_at": "2023-10-27T11:20:00Z", "sources": ["University Extension Plant Disease Guides", "APS Compendium of Cucurbit Diseases", "CABI Invasive Species Compendium"]}}
+{"schema_version": "1.0.0", "disease_id": "cucumber.disease_fungal.gummy_stem_blight", "aliases": ["black rot", "Didymella blight"], "crop": {"common_name": "cucumber", "scientific_name": "Cucumis sativus", "family": "Cucurbitaceae"}, "condition": {"common_name": "gummy stem blight", "scientific_name": "Stagonosporopsis cucurbitacearum", "alt_names": ["Didymella bryoniae"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Pleosporales", "family": "Didymellaceae", "genus": "Stagonosporopsis", "species": "cucurbitacearum"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["water_splash", "wind_driven_rain", "contaminated_tools", "infected_seed"], "overwintering": ["infected_crop_debris", "soil", "greenhouse_structures"]}, "environmental_risk": {"risk_factors": ["high_humidity", "prolonged_leaf_wetness", "cool_to_moderate_temperatures", "plant_wounds_from_pruning_or_harvesting"], "temp_c_day": [20, 25], "temp_c_night": [16, 20], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 4}, "severity_rubric": {"unit": "qualitative", "mild": "One or two small, water-soaked stem cankers or leaf lesions; no significant wilting or vine dieback.", "moderate": "Multiple stem cankers, some exuding gummy substance; significant foliar blighting (<30% of canopy); some fruit rot observed.", "severe": "Extensive stem girdling leading to vine collapse or wilting above the canker; >30% of canopy blighted; widespread fruit rot.", "notes": "Severity is assessed based on the most advanced symptom present, with stem girdling and vine collapse being the most critical indicators for high severity."}, "symptoms": {"leaves": ["Circular, water-soaked spots, often starting at the leaf margin.", "Lesions enlarge, turn tan to dark brown, and may develop a 'shot-hole' appearance as the center dries and falls out.", "A yellow halo may surround older leaf lesions."], "stems": ["Water-soaked, greasy-looking cankers, frequently at nodes or wound sites.", "Cankers become pale brown to gray, dry out, and may girdle the stem.", "Amber or reddish-brown gummy ooze exudes from stem cankers, especially in high humidity.", "Stem cankers may contain tiny black specks (pycnidia or perithecia)."], "fruit": ["Circular, water-soaked spots that enlarge and become sunken, developing into a black rot.", "Fruit rot often begins at the blossom or stem end.", "Tiny black specks (pycnidia) are often visible scattered across the rotted fruit surface.", "Infected fruit may also exude a gummy substance."], "roots": [], "whole_plant": ["Wilting or collapse of the entire vine above a girdling stem canker.", "Damping-off of seedlings, characterized by water-soaking and constriction at the soil line."], "signs_microscopic_or_visible": ["Presence of small, black, flask-shaped fruiting bodies (pycnidia and/or perithecia) embedded in lesion tissue on stems, leaves, or fruit.", "Viscous, gummy, amber-colored ooze from stem or fruit lesions."]}, "lookalikes": [{"condition_name": "anthracnose", "condition_id": "cucumber.disease_fungal.anthracnose", "key_differences": ["Anthracnose leaf spots are darker, almost black, and more sharply defined than the tan-brown lesions of GSB.", "Anthracnose fruit lesions are distinct, black, sunken craters, often with a pinkish spore mass in the center under moist conditions, unlike the more general black rot of GSB.", "Prominent gummy ooze from stem cankers is a hallmark of GSB and is less common or absent in anthracnose."]}, {"condition_name": "bacterial wilt", "condition_id": "cucumber.disease_bacterial.bacterial_wilt", "key_differences": ["Bacterial wilt causes rapid, irreversible wilting of the entire plant without the initial leaf spots or stem cankers seen in GSB.", "A key sign of bacterial wilt is stringy bacterial slime when a cut stem is pulled apart or placed in water; this is absent in GSB.", "GSB causes wilting only *above* a visible, girdling stem canker, whereas bacterial wilt affects the entire plant's vascular system."]}, {"condition_name": "belly rot", "condition_id": "cucumber.disease_fungal.belly_rot", "key_differences": ["Belly rot lesions occur primarily where the fruit contacts moist soil, while GSB fruit rot can start anywhere, often at the blossom end.", "Belly rot lesions are tan, sunken, and may appear cracked or 'scabby', not the black, pycnidia-dotted rot of GSB.", "Belly rot does not affect stems or leaves, whereas GSB is a whole-plant disease."]}], "management": {"cultural": ["Use certified disease-free seed and resistant cultivars where available.", "Practice crop rotation with non-cucurbits for at least two years.", "Improve air circulation via wider spacing and pruning to promote drying.", "Avoid overhead irrigation to minimize leaf wetness duration.", "Promptly remove and destroy infected plant material and post-harvest debris."], "biological": ["Application of bio-fungicides containing strains of *Bacillus subtilis* or *Trichoderma* may suppress the pathogen."], "chemical": ["Apply preventative fungicides, especially before rainy or humid periods.", "Rotate fungicides with different FRAC codes to manage resistance.", "Ensure thorough coverage, especially on stems and developing fruit."], "notes": "An integrated pest management (IPM) strategy combining cultural, biological, and chemical controls is most effective for managing gummy stem blight."}, "qa_seeds": {"verification_templates": ["Is there a tan or gray lesion on the stem?", "Can you see a sticky, amber-colored substance oozing from a canker?", "Are there tiny black dots embedded in the rotted part of the fruit?", "Does the leaf have a large, tan-colored spot, possibly with a yellow border?", "Is the vine wilting above a specific point on the stem?", "Does the fruit have a sunken, black, rotting area?"], "attribute_templates": ["What color is the ooze from the stem?", "Describe the shape and color of the leaf spots.", "Are the tiny black specks scattered or in a ring pattern?", "Where on the fruit did the rot begin?", "Is the stem canker wet and greasy-looking or dry and cracked?", "What percentage of the plant's leaves are affected?"], "diagnosis_templates": ["My cucumber has a canker on the stem that is oozing a gummy substance. What disease is this?", "The leaves on my cucumber have tan spots and the fruit is starting to get a black rot. What is the cause?", "A cucumber vine wilted and died, and I found a constricted, discolored lesion on the main stem. What's wrong?"], "counterfactual_templates": ["If the leaf spots were angular and limited by the veins, could it be gummy stem blight?", "If the plant wilted very quickly without any leaf spots or stem cankers, would gummy stem blight be the diagnosis?"], "severity_templates": ["How severe is the gummy stem blight if the stem is completely girdled and the vine has collapsed?", "If there is only one small spot on a single leaf, what is the severity of the disease?", "Based on multiple oozing stem cankers and about a quarter of the leaves showing spots, how would you rate the severity?"], "confounders": ["How can I be sure this isn't anthracnose?", "Could the wilting be caused by bacterial wilt instead?", "What's the difference between this fruit rot and belly rot?"]}, "data_requirements": {"min_resolution_px": 480, "min_roi_fraction": 0.2, "lighting_notes": "Use even, diffuse lighting. Avoid harsh direct sun or deep shadows which can obscure lesion color, texture, and the presence of pycnidia.", "occlusion_notes": "Ensure the primary symptom (e.g., stem canker, fruit lesion) is clearly visible and not obscured by healthy leaves. A close-up of the lesion showing surface details is ideal."}, "provenance": {"created_by": "AI Plant Pathologist", "reviewed_by": "", "created_at": "2024-05-23T12:00:00Z", "updated_at": "2024-05-23T12:00:00Z", "sources": ["University Extension Plant Pathology Guides", "APS Compendium of Cucurbit Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "cucumber.healthy.healthy", "aliases": ["normal", "unaffected", "symptom-free"], "crop": {"common_name": "Cucumber", "scientific_name": "Cucumis sativus", "family": "Cucurbitaceae"}, "condition": {"common_name": "Healthy", "scientific_name": null, "alt_names": [], "pathogen": {"type": "none", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "healthy", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Optimal growing conditions are maintained, including proper light, water, and nutrition."], "temp_c_day": [24, 29], "temp_c_night": [18, 21], "relative_humidity_pct": [60, 70], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "No visible symptoms of disease or significant stress. May have minor, non-pathogenic physical blemishes on <1% of plant surface.", "moderate": "Not applicable. The presence of moderate symptoms would indicate a non-healthy condition.", "severe": "Not applicable. The presence of severe symptoms would indicate a non-healthy condition.", "notes": "This rubric assesses the absence of disease. 'Mild' allows for trivial mechanical damage or cosmetic imperfections that do not impact plant health. Any rating beyond 'mild' signifies a deviation from the 'healthy' state."}, "symptoms": {"leaves": ["Uniformly green color, consistent with the cultivar.", "Leaves are fully expanded, turgid, and appropriately sized.", "Surfaces are free of spots, lesions, yellowing (chlorosis), or necrosis.", "No powdery, downy, or sooty mold growth is visible on either leaf surface.", "Leaf margins are intact and show no signs of browning or curling."], "stems": ["Stems and vines are firm, turgid, and typically light to medium green.", "No cankers, lesions, discoloration, or gummy ooze is present.", "Vines exhibit active, vigorous growth at the terminals."], "fruit": ["Fruit is firm to the touch with a consistent shape and size typical for the cultivar.", "Skin color is uniform and unblemished, typically green but varies by cultivar.", "No soft spots, water-soaked areas, sunken lesions, or mold growth.", "Blossom end is firm and dry."], "roots": [], "whole_plant": ["Exhibits a vigorous, upright or vining growth habit.", "Plant does not show signs of wilting, especially during cooler parts of the day.", "Overall appearance is robust with normal flower and fruit production."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "downy_mildew", "condition_id": "cucumber.fungal.downy_mildew", "key_differences": ["Healthy leaves have a uniform green color, whereas downy mildew causes angular, yellow to brownish lesions on the upper leaf surface.", "The underside of a healthy leaf is clean, while downy mildew-infected leaves often show a purplish-grey, fuzzy mold on the underside, especially in humid conditions.", "Healthy leaves remain turgid and flat, whereas leaves with advanced downy mildew become necrotic and may curl."]}, {"condition_name": "bacterial_wilt", "condition_id": "cucumber.bacterial.bacterial_wilt", "key_differences": ["A healthy plant is turgid and upright, while bacterial wilt causes rapid, irreversible wilting of entire vines, often starting with a single leaf, without any yellowing.", "The stem of a healthy plant is firm and shows no internal discoloration. A stem infected with bacterial wilt, when cut, will exude a sticky, stringy bacterial ooze when the cut ends are pulled apart.", "Wilting from bacterial wilt is permanent, whereas a healthy plant might show temporary wilting on a very hot day but recovers overnight."]}, {"condition_name": "anthracnose", "condition_id": "cucumber.fungal.anthracnose", "key_differences": ["Healthy fruit has smooth, unblemished skin. Anthracnose on fruit appears as circular, sunken, water-soaked spots that turn black and may develop a pinkish center.", "Healthy leaves are whole and uniformly colored. Anthracnose causes round, water-soaked spots on leaves that enlarge, turn dark brown or black, and may drop out, creating a 'shot-hole' effect."]}], "management": {"cultural": ["Provide consistent and adequate watering, avoiding overhead irrigation to keep foliage dry.", "Ensure proper plant spacing to promote good air circulation.", "Maintain a balanced soil fertility program based on soil testing.", "Practice crop rotation with non-cucurbit crops.", "Select cultivars that are well-suited to the local growing conditions."], "biological": [], "chemical": [], "notes": "Management for a healthy plant focuses on preventative care and maintaining optimal growing conditions to prevent the onset of diseases and disorders."}, "qa_seeds": {"verification_templates": ["Is this cucumber plant healthy?", "Does this image show a normal, symptom-free cucumber leaf?", "Are there any signs of disease or stress on the cucumber in the image?", "Is the fruit shown on this plant unaffected by any condition?", "Verify that the plant in the image is healthy."], "attribute_templates": ["What color are the leaves?", "Describe the appearance of the fruit's skin.", "Are the leaves turgid or wilted?", "Are there any spots, lesions, or discoloration on the stem?", "Is there any fuzzy or powdery growth on the leaf surfaces?", "Describe the overall posture of the plant."], "diagnosis_templates": ["What is the condition of this cucumber plant?", "Is this plant diseased or healthy?", "Based on the visual evidence, what is the health status of this cucumber?", "Diagnose the plant in the image."], "counterfactual_templates": ["If the leaves had angular yellow spots on top and purple fuzz underneath, would the plant still be healthy?", "What would I see on the fruit if it had belly rot instead of being healthy?", "If the entire vine was suddenly wilted and could not recover, what condition might it have instead of being healthy?"], "severity_templates": ["On a scale from healthy to severely diseased, how would you rate this plant?", "Is this plant completely free of symptoms?", "Are there any minor, non-disease-related blemishes visible on the leaves or fruit?"], "confounders": ["downy_mildew", "bacterial_wilt", "anthracnose"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse lighting is preferred. Avoid harsh shadows or overexposure that can obscure leaf and fruit color and texture.", "occlusion_notes": "The primary plant part of interest (leaf, stem, or fruit) should be largely unobstructed. Minimal occlusion from other leaves is acceptable if key features are visible."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2024-05-21T10:00:00Z", "updated_at": "2024-05-21T10:00:00Z", "sources": ["General university extension guides for cucurbit production", "Compendium of Cucurbit Diseases (APS Press)"]}}
+{"schema_version": "1.0.0", "disease_id": "cucumber.unknown.pythium_fruit_rot", "aliases": ["Pythium cottony leak", "Watery soft rot", "Pythium leak"], "crop": {"common_name": "cucumber", "scientific_name": "Cucumis sativus", "family": "Cucurbitaceae"}, "condition": {"common_name": "Pythium fruit rot", "scientific_name": "Pythium spp.", "alt_names": ["Cottony leak"], "pathogen": {"type": "oomycete", "taxonomy": {"kingdom": "Stramenopila", "phylum": "Oomycota", "class": "Oomycetes", "order": "Pythiales", "family": "Pythiaceae", "genus": "Pythium", "species": "spp."}}}, "issue_type": "unknown", "transmission": {"vectors": ["Fungus gnats", "Shore flies"], "dispersal": ["Contaminated soil", "Splashing water (rain, irrigation)", "Infected tools", "Movement of infected plant material"], "overwintering": ["Oospores in soil", "Infected crop residue"]}, "environmental_risk": {"risk_factors": ["Saturated or poorly drained soil", "High relative humidity (>85%)", "Fruit in direct contact with wet soil", "Warm soil and air temperatures", "Over-irrigation"], "temp_c_day": [25, 35], "temp_c_night": [20, 30], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 12}, "severity_rubric": {"unit": "qualitative", "mild": "Small, distinct, water-soaked spot (<10% of fruit surface), no visible mycelium.", "moderate": "Expanding lesion (10-40% of fruit surface), fruit is soft, possibly with some visible white, cottony mycelium.", "severe": "Large portion of fruit is collapsed (>40%), abundant cottony mycelium is present, and the fruit is watery and disintegrating.", "notes": "Severity is based on the percentage of the individual fruit's surface area affected by rot and the presence/abundance of visible mycelial growth. While named 'leaf_wetness', for this soil-borne disease, this value represents hours of continuous soil saturation required for infection."}, "symptoms": {"leaves": [], "stems": ["Water-soaked lesions at the soil line on young plants (damping-off)."], "fruit": ["Small, circular, water-soaked spots appear where the fruit touches the soil.", "Lesions expand rapidly, becoming very soft and watery.", "Affected area becomes covered in a brilliant white, cottony or fluffy mold (mycelium).", "The fruit skin may rupture, releasing a clear, often odorless liquid.", "The entire fruit collapses into a soft, watery mass within 2-4 days.", "Infected fruit feels very light when picked up due to water loss."], "roots": ["Roots may appear brown, soft, and water-soaked.", "The outer cortex of roots may slough off easily, leaving the inner core."], "whole_plant": ["Sudden wilting of the plant, especially if root rot is also present."], "signs_microscopic_or_visible": ["Profuse, white, cottony mycelial growth on the surface of fruit lesions."]}, "lookalikes": [{"condition_name": "Belly Rot", "condition_id": "cucumber.unknown.belly_rot", "key_differences": ["Belly rot lesions are tan-to-brown and sunken, not initially clear and water-soaked like Pythium.", "Belly rot does not produce the profuse, white, cottony mycelium characteristic of Pythium.", "Belly rot lesions are firm and may have a target-like or zonate pattern.", "Pythium rot is much softer and more watery than belly rot."]}], "management": {"cultural": ["Improve soil drainage and avoid overwatering.", "Use raised beds to keep fruit from sitting in water.", "Apply a physical barrier like plastic mulch or straw between the soil and fruit.", "Promote good air circulation around plants.", "Rotate crops with non-susceptible plants (e.g., non-cucurbits)."], "biological": ["Application of soil-borne beneficial microbes such as Trichoderma spp. or specific strains of Bacillus spp."], "chemical": ["Preventative application of fungicides specifically targeting oomycetes (e.g., mefenoxam, propamocarb, etridiazole) as a soil drench.", "Ensure fungicides are applied to the soil surface and crown of the plant before disease onset."], "notes": "Cultural controls that prevent fruit-to-soil contact and reduce soil moisture are the most effective management strategies. Chemical controls are typically only used preventatively in high-risk fields."}, "qa_seeds": {"verification_templates": ["Is there a white, cottony growth on the cucumber fruit?", "Does the rotted area look water-soaked and transparent?", "Is the fruit soft, mushy, and collapsing?", "Is the rot primarily on the side of the fruit touching the ground?", "Can you see any fluffy white mold on the lesion?"], "attribute_templates": ["What color is the mold growing on the fruit?", "Describe the texture of the lesion on the cucumber.", "How extensive is the rot on the fruit?", "Is the fruit's skin still intact or has it ruptured?", "Where on the plant is the rot most visible?"], "diagnosis_templates": ["What disease causes a rapid, watery rot with white cottony mold on cucumbers touching the soil?", "Based on the water-soaked lesion and profuse white mold, what is affecting this cucumber?", "What is the likely diagnosis for a cucumber fruit that has collapsed into a watery mass?"], "counterfactual_templates": ["If the lesion was brown, sunken, and had no white mold, what disease might it be instead?", "If the fruit rot was black and had tiny black specks on it, what would be the likely cause?"], "severity_templates": ["How would you describe the severity of this Pythium rot: is it a small spot, a large lesion, or is the whole fruit collapsing?", "What percentage of the cucumber fruit's surface is affected by the watery rot?", "Is there a small amount of white mold, or is it abundant and covering the lesion?"], "confounders": ["belly_rot", "gummy_stem_blight"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Use diffuse, even lighting. Avoid harsh shadows or direct sun, which can obscure the water-soaked appearance and the delicate texture of the mycelium.", "occlusion_notes": "The lesion and surrounding fruit area must be clearly visible. Avoid occlusion by leaves, soil, or mulch. The interface between the fruit and soil is a critical area to capture."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2024-05-21T10:00:00Z", "updated_at": "2024-05-21T10:00:00Z", "sources": ["University extension plant pathology guides", "APS Compendium of Cucurbit Diseases", "General plant pathology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "mango.disease_bacterial.bacterial_canker", "aliases": ["bacterial black spot of mango", "mango bacterial spot", "mango canker"], "crop": {"common_name": "mango", "scientific_name": "Mangifera indica", "family": "Anacardiaceae"}, "condition": {"common_name": "bacterial canker", "scientific_name": "Xanthomonas campestris pv. mangiferaeindicae", "alt_names": ["bacterial black spot"], "pathogen": {"type": "disease_bacterial", "taxonomy": {"kingdom": "Bacteria", "phylum": "Pseudomonadota", "class": "Gammaproteobacteria", "order": "Xanthomonadales", "family": "Xanthomonadaceae", "genus": "Xanthomonas", "species": "X. campestris pv. mangiferaeindicae"}}}, "issue_type": "disease_bacterial", "transmission": {"vectors": ["wind-driven rain"], "dispersal": ["infected planting material", "contaminated pruning tools", "rain splash"], "overwintering": ["in cankers on stems and branches", "in fallen infected leaves and fruit"]}, "environmental_risk": {"risk_factors": ["high humidity", "frequent rainfall", "warm temperatures (25-30°C)", "windy conditions", "wounds on plant tissue from insects or mechanical damage"], "temp_c_day": [25, 30], "temp_c_night": [], "relative_humidity_pct": [80, 100], "leaf_wetness_hours_threshold": 6}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-5% of leaf surface affected with small, scattered lesions. No significant stem involvement.", "moderate": "6-25% of leaf surface affected; some lesions are coalescing. Minor cankers may be present on young twigs.", "severe": ">25% of leaf surface affected with large necrotic areas. Significant stem cankers, fruit infection, and dieback are visible.", "notes": "Severity is primarily assessed by the percentage of symptomatic leaf area on the most affected leaves. The presence and severity of stem and fruit symptoms should also be considered for a whole-plant assessment."}, "symptoms": {"leaves": ["Small, angular, water-soaked spots that turn black and become raised.", "Lesions are typically surrounded by a prominent, bright yellow halo.", "Spots may coalesce to form large, irregular necrotic patches.", "Infected leaf veins may darken or blacken.", "Severe infections can lead to a 'shot-hole' appearance as the necrotic centers of spots fall out."], "stems": ["Raised, dark, water-soaked cankers on young twigs and branches.", "Cankers often crack open and release a gummy, yellowish bacterial ooze in humid conditions.", "Girdling of stems by cankers can cause dieback of the distal parts."], "fruit": ["Small, dark, raised, water-soaked spots on the fruit skin.", "Lesions enlarge, turn black, and may crack open, often in a star-like shape.", "A sticky exudate may emerge from fruit lesions.", "Infection can lead to premature fruit drop and reduce market value."], "roots": [], "whole_plant": ["In severe cases, widespread defoliation and branch dieback can occur."], "signs_microscopic_or_visible": ["Gummy, bacterial ooze exuding from stem or fruit cankers, especially during wet weather."]}, "lookalikes": [{"condition_name": "anthracnose", "condition_id": "mango.disease_fungal.anthracnose", "key_differences": ["Anthracnose spots are typically sunken and brown-to-black, whereas bacterial canker spots are raised and angular.", "Bacterial canker lesions almost always have a distinct yellow halo, which is less common or absent in anthracnose.", "Anthracnose often forms 'tear stain' patterns on fruit, while bacterial canker causes discrete, raised, cracked lesions.", "Bacterial ooze is a sign of canker; pinkish-orange spore masses in wet conditions are a sign of anthracnose."]}, {"condition_name": "gall_midge", "condition_id": "mango.pest_insect.gall_midge", "key_differences": ["Gall midge damage appears as small, raised, circular, wart-like galls, not angular, water-soaked spots.", "Gall midge spots lack the characteristic yellow halo and bacterial ooze of canker.", "Mature galls may have a tiny exit hole from the emerged larva, a feature absent in bacterial canker lesions."]}, {"condition_name": "sooty_mold", "condition_id": "mango.disease_fungal.sooty_mold", "key_differences": ["Sooty mold is a superficial, black, velvety coating that can be physically wiped off the leaf surface.", "Bacterial canker lesions are embedded within the plant tissue and cannot be wiped off.", "Sooty mold is a secondary issue resulting from honeydew produced by insects like aphids or mealybugs, which would also be present."]}], "management": {"cultural": ["Use certified disease-free planting material.", "Prune and destroy infected branches and twigs during the dry season to reduce inoculum.", "Improve air circulation within the orchard by proper tree spacing and pruning.", "Avoid overhead irrigation to minimize periods of leaf wetness."], "biological": ["Application of products containing *Bacillus subtilis* or other antagonistic microorganisms may offer some suppression."], "chemical": ["Preventative sprays with copper-based bactericides (e.g., copper hydroxide, copper oxychloride) before and during the rainy season.", "In some regions, antibiotics like streptomycin may be used, but resistance and regulations are a concern."], "notes": "An integrated approach is essential. Management should focus on reducing inoculum through sanitation and protecting new growth with timely bactericide applications."}, "qa_seeds": {"verification_templates": ["Are there raised, black, angular spots on the leaves?", "Can you see a distinct yellow halo surrounding the leaf spots?", "Are there any cracked cankers on the stems or twigs?", "Is there a gummy substance oozing from any of the lesions?", "Does the fruit have raised, black spots that are cracking open?"], "attribute_templates": ["What is the shape of the lesions on the leaves?", "What color is the border of the leaf spots?", "Describe the texture of the spots on the stems.", "Are the lesions on the fruit sunken or raised?", "Is there any sign of ooze coming from the cankers?", "Do the leaf spots appear water-soaked?"], "diagnosis_templates": ["Given the angular leaf spots with yellow halos and gummy stem cankers, what disease is this?", "What bacterial disease of mango is characterized by raised, black, cracking spots on the fruit?", "The combination of branch dieback, stem cankers, and haloed leaf spots points to what condition?"], "counterfactual_templates": ["If the black spots on the leaves were a superficial layer that could be wiped off, what would the problem be?", "If the leaf spots were sunken and had concentric rings instead of being raised and angular, what disease would you suspect?"], "severity_templates": ["What percentage of the leaf surface is covered by lesions?", "Based on the extent of leaf spots and stem cankers, would you classify this infection as mild, moderate, or severe?", "Have the individual spots merged to form large dead areas on the leaves?"], "confounders": ["anthracnose", "gall_midge", "sooty_mold"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Use diffuse, bright, even lighting. Avoid harsh shadows or direct sunlight that can overexpose the image and hide key features like water-soaking or yellow halos.", "occlusion_notes": "Ensure the primary symptoms (e.g., a leaf with multiple spots, a canker on a stem) are in focus and not obscured by other leaves, branches, or background objects."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T11:30:00Z", "updated_at": "2023-10-27T11:30:00Z", "sources": ["APS Compendium of Tropical Fruit Diseases", "University Extension Plant Pathology Guides", "CABI Invasive Species Compendium", "General Plant Pathology Textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "mango.pest_insect.weevil", "aliases": ["mango seed weevil", "mango nut weevil", "mango stone weevil"], "crop": {"common_name": "mango", "scientific_name": "Mangifera indica", "family": "Anacardiaceae"}, "condition": {"common_name": "Mango weevil", "scientific_name": "Sternochetus mangiferae", "alt_names": ["mango seed weevil"], "pathogen": {"type": "insect", "taxonomy": {"kingdom": "Animalia", "phylum": "Arthropoda", "class": "Insecta", "order": "Coleoptera", "family": "Curculionidae", "genus": "Sternochetus", "species": "mangiferae"}}}, "issue_type": "pest_insect", "transmission": {"vectors": ["adult weevil"], "dispersal": ["infested fruit transport", "adult flight"], "overwintering": ["adults in bark crevices", "under plant debris", "larvae/pupae inside fallen fruit/seeds"]}, "environmental_risk": {"risk_factors": ["Presence of fallen, uncollected fruit", "Nearby infested orchards", "Poor orchard sanitation"], "temp_c_day": [25, 35], "temp_c_night": [], "relative_humidity_pct": [60, 90], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Few fruits (<10%) show single oviposition scars or minor sap ooze. Internal damage is rare upon inspection.", "moderate": "Multiple fruits (10-40%) show external signs. Some premature fruit drop may be observed. Weevils found in a notable portion of cut-open fruit.", "severe": "Widespread fruit damage (>40%), significant premature fruit drop. High percentage of seeds are infested. Adult weevils may be visible on the tree.", "notes": "Severity is best assessed by inspecting fallen or harvested fruit, as early signs are subtle. Cutting fruit open is required for confirmation of internal damage."}, "symptoms": {"leaves": ["Adult feeding may cause small, irregular notches on the edges of tender leaves."], "stems": ["Adult weevils may be seen resting on twigs and branches, especially at night."], "fruit": ["Small, dark, crescent-shaped or V-shaped oviposition scars on the skin of young fruit.", "Clear, amber, or brownish sap oozing from egg-laying punctures, which later dries.", "A hardened, resinous, dark brown spot on the fruit skin at the point of larval entry.", "Premature drop of infested young fruit.", "Internal tunneling and feeding damage within the seed/stone, visible when cut.", "A large, circular exit hole (~8-10mm) in the stone and fruit pulp after the adult emerges.", "Discolored, rotting pulp immediately surrounding the infested seed."], "roots": [], "whole_plant": ["Reduced yield due to premature fruit drop and unmarketable fruit."], "signs_microscopic_or_visible": ["Dark grey or brown, stout-bodied, snout-nosed adult weevils (~6-9 mm long).", "White, legless, C-shaped grubs (larvae) found inside the seed when cut open."]}, "lookalikes": [{"condition_name": "Gall midge", "condition_id": "mango.pest_insect.gall_midge", "key_differences": ["Gall midge causes small, raised, circular black galls on fruit skin, not crescent-shaped scars.", "Gall midge damage is superficial, creating pimple-like spots, whereas weevil damage is deep, leading to the seed.", "Gall midge larvae are tiny pinkish maggots found just under the skin, not large white grubs inside the seed."]}, {"condition_name": "Anthracnose", "condition_id": "mango.fungal.anthracnose", "key_differences": ["Anthracnose causes large, dark, sunken, irregular blotches on fruit, not a small, distinct puncture mark.", "Anthracnose lesions may produce pinkish spore masses in humid weather, which is absent in weevil damage.", "Weevil damage originates from a single point and goes inward; anthracnose spreads across the fruit surface.", "Anthracnose also causes severe leaf spotting and blossom blight, which are not primary symptoms of weevils."]}, {"condition_name": "Bacterial canker", "condition_id": "mango.bacterial.canker", "key_differences": ["Bacterial canker causes angular, water-soaked, black lesions that crack open, unlike the sealed puncture of a weevil.", "Ooze from bacterial canker is a gummy, bacterial exudate, distinct from the clearer sap from a weevil oviposition site.", "The primary damage from weevil is a grub inside the seed, not a bacterial infection causing rot throughout the pulp."]}], "management": {"cultural": ["Implement strict orchard sanitation by collecting and destroying all fallen fruit and seeds to break the pest's life cycle.", "Prune trees to maintain an open canopy, which can deter adult weevils.", "Harvest fruit as early as commercially viable to reduce the window for infestation."], "biological": ["Application of entomopathogenic fungi (e.g., Beauveria bassiana) to target adult weevils.", "Conservation of natural enemies, such as weaver ants (Oecophylla smaragdina), which are known predators."], "chemical": ["Apply registered insecticides to the canopy, targeting adult weevils before they lay eggs on young fruit.", "Timing of sprays is critical and should coincide with fruit development (marble to golf-ball size).", "Consult local extension services for recommended active ingredients and application schedules."], "notes": "Control must target the adult weevil stage, as larvae developing inside the seed are protected from most chemical treatments."}, "qa_seeds": {"verification_templates": ["Is there a dark, crescent-shaped scar on the mango skin?", "Can you see a beetle with a long snout on the fruit or branch?", "Is there any sap oozing from a small puncture on the fruit?", "Is there a large, circular hole in the mango stone?", "Does the fruit show signs of a hardened, resinous spot?"], "attribute_templates": ["What is the shape of the mark on the fruit's skin?", "What color is the substance oozing from the fruit?", "When you cut the fruit open, is there a grub inside the seed?", "Describe the insect visible on the mango.", "How large is the hole in the fruit?"], "diagnosis_templates": ["Based on the crescent-shaped scar and internal grub, what pest is affecting this mango?", "What pest creates a large exit hole in the mango stone after developing inside it?", "A large, C-shaped larva found inside a mango seed is a sign of what insect?"], "counterfactual_templates": ["If the spots on the fruit were large, sunken, and black instead of a small puncture, what disease could it be?", "If the damage consisted of many small, raised black bumps on the skin, what pest would be more likely?"], "severity_templates": ["How many of the mangoes in the image have oviposition scars?", "Based on the widespread fruit drop and visible damage, is this a mild or severe weevil infestation?", "What percentage of the fruit appears to be affected by the weevil?"], "confounders": ["gall_midge", "anthracnose", "bacterial_canker"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.2, "lighting_notes": "Good, even lighting is required to see subtle oviposition scars and sap ooze. Avoid harsh shadows or overexposure.", "occlusion_notes": "The symptomatic fruit should be clearly visible and not heavily obscured by leaves or other fruit. A cross-section view is ideal for confirming internal damage."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Plant Pathologist", "created_at": "2024-05-21T10:00:00Z", "updated_at": "2024-05-21T10:00:00Z", "sources": ["University extension guides on mango pest management", "CABI Invasive Species Compendium", "APS Compendium of Tropical Fruit Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "mango.unknown.dieback", "aliases": ["Tip dieback", "Twig blight", "Gummosis"], "crop": {"common_name": "mango", "scientific_name": "Mangifera indica", "family": "Anacardiaceae"}, "condition": {"common_name": "dieback", "scientific_name": "", "alt_names": ["Twig dieback", "Branch dieback", "Tip necrosis"], "pathogen": {"type": "unknown", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "unknown", "transmission": {"vectors": ["Pruning tools", "Insects (borers)"], "dispersal": ["Wind-driven rain", "Contaminated pruning tools", "Infected planting material"], "overwintering": ["Infected dead twigs", "Cankers on branches", "Plant debris"]}, "environmental_risk": {"risk_factors": ["High humidity", "Prolonged rainy season", "Wounds from pruning or insects", "Poorly drained soils", "Nutrient deficiency (e.g., copper)", "Post-harvest stress"], "temp_c_day": [25, 35], "temp_c_night": [], "relative_humidity_pct": [80, 100], "leaf_wetness_hours_threshold": 12}, "severity_rubric": {"unit": "qualitative", "mild": "One or a few small terminal twigs show dieback, affecting <10% of the canopy.", "moderate": "Multiple branches show dieback, progressing downwards, affecting 10-30% of the canopy.", "severe": "Major limbs or the main trunk are affected, with significant canopy loss >30% and potential tree death.", "notes": "Severity is measured by the percentage of the tree's canopy showing dead or dying branches, starting from the tips and progressing inwards."}, "symptoms": {"leaves": ["Wilting and drooping of leaves on affected twigs.", "Leaves turn brown or black, but remain attached to the dead branch for some time.", "Young leaves at the tip of a branch suddenly dry out and appear scorched."], "stems": ["Progressive drying of twigs and branches from the tip downwards.", "Affected bark turns dark brown to black.", "A distinct dark, sunken band may be visible at the junction of healthy and diseased tissue.", "Gum or a dark, sticky substance may exude from cracks in the bark (gummosis).", "Small, black, pin-head sized fruiting bodies (pycnidia) may appear on dead twigs under moist conditions."], "fruit": ["Fruit on affected branches may shrivel, mummify, and remain attached."], "roots": [], "whole_plant": ["Affected branches appear barren and dead against the healthy foliage.", "In severe cases, the entire tree may die."], "signs_microscopic_or_visible": ["Black, pimple-like structures (pycnidia) embedded in the dead bark.", "Oozing of dark, resinous gum from cankers on stems or branches."]}, "lookalikes": [{"condition_name": "anthracnose", "condition_id": "mango.fungal.anthracnose", "key_differences": ["Anthracnose also causes distinct, dark, angular spots on leaves and sunken black lesions on fruit, which are not primary symptoms of dieback.", "Anthracnose leaf spots often have a 'shot-hole' appearance as the center falls out.", "Dieback is a progressive death from the tip, while anthracnose twig blight can appear as discrete cankers anywhere on the stem."]}, {"condition_name": "senescence_or_dry", "condition_id": "mango.abiotic.senescence_or_dry", "key_differences": ["Drought stress causes a more uniform yellowing and drying of leaves across the whole plant, not just starting from the tips of specific branches.", "Dieback often shows a clear demarcation line between dead and living tissue, which is less common in general drying.", "There is no gummosis or presence of fungal fruiting bodies with simple drought stress or senescence."]}, {"condition_name": "bacterial_canker", "condition_id": "mango.bacterial.bacterial_canker", "key_differences": ["Bacterial canker lesions are often water-soaked initially and may exude a lighter-colored bacterial ooze, unlike the dark gum of fungal dieback.", "Bacterial canker also causes distinct, angular, raised, black spots on leaves and fruit.", "While both can cause branch death, bacterial cankers can form anywhere on a stem, whereas dieback characteristically progresses from the tip downwards."]}], "management": {"cultural": ["Prune and destroy affected twigs and branches, cutting at least 15-20 cm into the healthy wood.", "Ensure proper irrigation and balanced nutrition to maintain tree vigor.", "Avoid wounding trees during cultural operations.", "Sterilize pruning tools (e.g., with 10% bleach solution or alcohol) between cuts and between trees."], "biological": [], "chemical": ["Apply protective copper-based fungicides (e.g., copper oxychloride, Bordeaux mixture) before the rainy season to protect from new infections.", "After pruning, apply a fungicidal paste to the cut ends to prevent pathogen entry."], "notes": "Integrated management focusing on sanitation and maintaining tree health is crucial. The exact chemical control depends on the specific pathogen identified."}, "qa_seeds": {"verification_templates": ["Is the tip of this branch dead and brown?", "Does this twig show signs of drying from the tip downwards?", "Are the leaves on this branch wilted and brown while still attached?", "Is there a clear line between the dead part of the stem and the healthy green part?", "Is the bark on this branch turning dark or black?", "Does this branch look like it's dying from the top down?"], "attribute_templates": ["What color is the affected twig?", "Describe the progression of the symptom on this branch.", "Are the dead leaves still attached to the stem?", "Is there any substance oozing from the bark?", "Where on the tree is the dieback occurring?", "How far down the branch has the discoloration progressed?"], "diagnosis_templates": ["What is causing the tips of these mango branches to die?", "Is this mango tree suffering from dieback?", "Why are the twigs on this mango plant drying out from the top?"], "counterfactual_templates": ["What would this branch look like if it were healthy?", "If this were anthracnose instead of dieback, what other symptoms would be visible on the leaves or fruit?"], "severity_templates": ["How much of the tree's canopy is affected by the dieback?", "Is the dieback limited to a few small twigs or are major branches affected?", "Based on the extent of dead branches, how severe is this case of dieback?"], "confounders": ["anthracnose", "senescence_or_dry", "bacterial_canker"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Good, even lighting is needed to distinguish between dead (brown/black) and healthy (green/brown) tissue. Avoid harsh shadows or overexposure.", "occlusion_notes": "The transition zone between the dead and healthy part of the stem should be visible and not obscured by leaves or other branches."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["General university extension guides for mango pathology", "APS Compendium of Tropical Fruit Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "mango.disease_fungal.sooty_mold", "aliases": ["black mold", "sooty blotch"], "crop": {"common_name": "mango", "scientific_name": "Mangifera indica", "family": "Anacardiaceae"}, "condition": {"common_name": "sooty mold", "scientific_name": "Complex of various saprophytic fungi, e.g., Capnodium, Meliola, Leptoxyphium, Scorias spp.", "alt_names": ["black mold"], "pathogen": {"type": "fungus", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "disease_fungal", "transmission": {"vectors": ["scale insects", "mealybugs", "aphids", "whiteflies"], "dispersal": ["wind", "rain_splash"], "overwintering": ["Mycelium on host plant surfaces and in honeydew deposits", "Overwintering stages of causal insects"]}, "environmental_risk": {"risk_factors": ["High populations of honeydew-producing insects", "High relative humidity", "Poor air circulation within the plant canopy", "Shaded or dense foliage"], "temp_c_day": [], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 12}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "< 10% of leaf, stem, or fruit surface is covered by a thin, patchy black coating.", "moderate": "10-40% of surfaces are covered with a more continuous, but still relatively thin, layer of black mold.", "severe": "> 40% of surfaces are covered with a thick, dense, black, often felty or crusty layer that may peel off.", "notes": "Severity is based on the surface area covered by the superficial fungal growth. This is a secondary problem resulting from insect honeydew; the mold itself is not parasitic but blocks sunlight, reducing photosynthesis."}, "symptoms": {"leaves": ["A superficial, black, soot-like coating on the upper leaf surface.", "The black fungal layer can be easily rubbed or wiped off the leaf.", "In severe cases, the coating becomes a thick, felty or crusty mat that can peel away.", "Underlying leaf tissue may turn yellow (chlorosis) due to blockage of sunlight.", "A clear, sticky substance (honeydew) is often present beneath or near the mold."], "stems": ["Black, sooty growth covers twigs and branches, especially where honeydew accumulates."], "fruit": ["Superficial black blemishes or patches on the fruit skin.", "The mold does not cause fruit rot but significantly reduces marketability.", "The black coating can typically be washed or wiped off the fruit."], "roots": [], "whole_plant": ["Plant appears dirty, as if covered in a layer of black soot.", "Reduced plant vigor in severe infestations due to impaired photosynthesis.", "Associated with visible colonies of scale insects, mealybugs, or other sap-sucking insects."], "signs_microscopic_or_visible": ["Visible black mycelial threads forming a mat on plant surfaces.", "Presence of the causal insects (e.g., scale insect shells, mealybug cottony masses) on leaves and stems."]}, "lookalikes": [{"condition_name": "anthracnose", "condition_id": "mango.disease_fungal.anthracnose", "key_differences": ["Sooty mold is a superficial black coating that can be rubbed off; anthracnose causes dark, sunken, necrotic lesions that are part of the plant tissue.", "Sooty mold growth is diffuse and follows honeydew drips; anthracnose lesions are typically more defined, often with a distinct border.", "Anthracnose can cause blossom blight and fruit rot, whereas sooty mold is only a surface blemish."]}, {"condition_name": "powdery_mildew", "condition_id": "mango.disease_fungal.powdery_mildew", "key_differences": ["Sooty mold is black or very dark brown; powdery mildew is white to light gray.", "Sooty mold is a secondary growth on honeydew; powdery mildew is a primary pathogen growing directly on plant tissue.", "Powdery mildew often causes distortion, curling, and blistering of young leaves, which is not characteristic of sooty mold."]}], "management": {"cultural": ["Control the primary infestation of honeydew-producing insects (e.g., scales, mealybugs, aphids).", "Prune canopy to improve air circulation and sunlight penetration, creating less favorable conditions for mold growth.", "Wash affected plant parts with a strong spray of water, sometimes with a mild soap or horticultural oil, to remove both insects and mold.", "Maintain balanced plant nutrition to avoid promoting excessive, soft growth that attracts sucking insects."], "biological": ["Encourage or release natural predators and parasitoids of sap-sucking insects, such as lady beetles, lacewings, and parasitic wasps."], "chemical": ["Apply horticultural oils or insecticidal soaps to suffocate and control causal insects.", "Use systemic or contact insecticides targeted at the specific sap-sucking insect present, following local guidelines.", "Fungicides are generally not recommended or effective for sooty mold, as the problem is the insect-produced honeydew."], "notes": "Management must target the root cause: the insects producing honeydew. Once the insects are controlled, the sooty mold will gradually weather away."}, "qa_seeds": {"verification_templates": ["Is there a black, soot-like substance on the leaf surface?", "Can the black coating be rubbed off the leaf or fruit?", "Does the plant look like it has been dusted with black powder?", "Are there sticky spots on the leaves near the black growth?", "Do you see any small insects like scales or mealybugs on the stems or undersides of leaves?"], "attribute_templates": ["What color is the coating on the leaves?", "Describe the texture of the black growth: is it powdery, crusty, or sticky?", "Is the black substance on the surface, or is it a sunken spot in the leaf?", "Where on the plant is the black coating most severe?", "Is the leaf tissue underneath the black mold green, yellow, or brown and dead?"], "diagnosis_templates": ["What is the likely problem if a mango leaf is covered in a black film that can be wiped away?", "The presence of both scale insects and a black, sooty coating on leaves indicates what condition?", "If a mango fruit has a superficial black blemish that does not cause rotting, what is the diagnosis?"], "counterfactual_templates": ["What would this be if the black spots were sunken and caused the tissue to die?", "If this coating were white instead of black, what disease would it be?"], "severity_templates": ["What percentage of the total leaf area is covered by the sooty mold?", "Is the black coating a thin, sparse layer or a thick, continuous crust?", "How would you rate the sooty mold severity: mild, moderate, or severe?"], "confounders": ["anthracnose", "bacterial_canker", "senescence_or_dry"]}, "data_requirements": {"min_resolution_px": 1024, "min_roi_fraction": 0.3, "lighting_notes": "Use diffuse, even lighting. Avoid hard shadows which can be confused with the black mold. Avoid direct flash which can create glare on shiny honeydew.", "occlusion_notes": "The affected surface must be clearly visible to distinguish the superficial nature of the mold from a tissue lesion. A side-angle view can help show that the mold is sitting on top of the leaf."}, "provenance": {"created_by": "AI Plant Pathologist", "reviewed_by": "Human Expert", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University extension guides for mango pest and disease management", "APS Compendium of Tropical Fruit Diseases", "General plant pathology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "pepper.disease_fungal.anthracnose", "aliases": ["Ripe rot", "Pepper anthracnose"], "crop": {"common_name": "Pepper", "scientific_name": "Capsicum annuum", "family": "Solanaceae"}, "condition": {"common_name": "Anthracnose", "scientific_name": "Colletotrichum spp.", "alt_names": ["Ripe rot"], "pathogen": {"type": "fungus", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Sordariomycetes", "order": "Glomerellales", "family": "Glomerellaceae", "genus": "Colletotrichum", "species": ""}}}, "issue_type": "disease_fungal", "transmission": {"vectors": ["Splashing water (rain, irrigation)", "Insects", "Field workers and equipment"], "dispersal": ["Wind-driven rain", "Contaminated tools", "Infected transplants", "Infected seed"], "overwintering": ["Infected seed", "On crop debris", "On alternative weed hosts (e.g., nightshade)"]}, "environmental_risk": {"risk_factors": ["High humidity", "Frequent rainfall or overhead irrigation", "Warm temperatures", "Dense plant canopy with poor air circulation", "Presence of infected fruit or debris"], "temp_c_day": [20, 27], "temp_c_night": [], "relative_humidity_pct": [80, 100], "leaf_wetness_hours_threshold": 12}, "severity_rubric": {"unit": "qualitative", "mild": "1-5% of a single fruit's surface shows one or more small, distinct lesions.", "moderate": "6-25% of a fruit's surface is affected, with lesions expanding and potentially coalescing.", "severe": ">25% of a fruit's surface is covered by large, coalesced lesions, leading to significant rot and making the fruit unmarketable.", "notes": "Severity is primarily assessed on ripening or mature fruit where symptoms are most evident. Assessment is based on the percentage of fruit surface area affected, but is classified into qualitative tiers. Assessment can be an average across a representative sample of fruit from a plant or plot."}, "symptoms": {"leaves": ["Leaf spots are uncommon but can occur.", "Spots are small, circular, and water-soaked, eventually turning grayish-brown with a dark border."], "stems": ["Stem lesions are rare.", "Appear as dark, sunken, elongated cankers that can girdle the stem under severe conditions."], "fruit": ["Primary symptom appears on ripening or mature fruit.", "Begins as small, circular, water-soaked, sunken spots.", "Lesions enlarge rapidly, becoming distinctly sunken and dark brown to black.", "Concentric rings often form within the lesion, creating a 'target' appearance.", "Under humid conditions, pink to salmon-colored, gelatinous spore masses (acervuli) appear in the center of the lesions.", "Multiple lesions can merge (coalesce), causing the entire fruit to rot."], "roots": [], "whole_plant": ["Severe infections can lead to premature fruit drop."], "signs_microscopic_or_visible": ["Presence of pinkish-orange, moist spore masses in the center of fruit lesions."]}, "lookalikes": [{"condition_name": "Bacterial Spot", "condition_id": "pepper.disease_bacterial.bacterial_spot", "key_differences": ["Bacterial spot lesions on fruit are typically small, raised, and scabby, not large and sunken like anthracnose.", "Anthracnose lesions often have distinct concentric rings and pinkish spore masses, which are absent in bacterial spot.", "Leaf spots are much more common and angular with bacterial spot, often with yellow halos, whereas they are rare and circular with anthracnose."]}], "management": {"cultural": ["Use certified disease-free seed.", "Practice crop rotation with non-solanaceous crops for at least 2-3 years.", "Promote air circulation via staking and appropriate plant spacing.", "Use drip or furrow irrigation to avoid wetting fruit and foliage.", "Remove and destroy infected plant debris and fruit promptly.", "Mulch to reduce soil splash onto lower fruit."], "biological": ["Biofungicides containing *Bacillus subtilis* or *Streptomyces* strains may provide some suppression when applied preventatively."], "chemical": ["Apply preventative fungicides during periods of high risk (warm, wet weather), starting at flowering.", "Rotate fungicides with different modes of action (e.g., FRAC groups 3, 7, 11) to manage resistance.", "Ensure thorough spray coverage, especially on developing fruit."], "notes": "An integrated pest management (IPM) strategy combining cultural practices with timely fungicide applications is most effective for controlling anthracnose."}, "qa_seeds": {"verification_templates": ["Does this pepper fruit have anthracnose?", "Are there sunken, circular lesions on the fruit?", "Can you see pink or salmon-colored spore masses on the fruit spots?", "Do the spots on the fruit look like targets?", "Is this pepper affected by ripe rot?"], "attribute_templates": ["What is the shape of the lesions on the pepper?", "What color are the spots on the fruit?", "Are the lesions on the fruit sunken or raised?", "Do the lesions show concentric rings?", "What part of the plant is most affected?", "Are there any spore masses visible in the lesions?"], "diagnosis_templates": ["What disease causes sunken, target-like spots with pink centers on pepper fruit?", "Based on the symptoms on the fruit, what is the likely disease?", "What is wrong with this pepper?"], "counterfactual_templates": ["If the spots on the fruit were raised and scabby instead of sunken, what could the disease be?", "If the rot was only on the bottom end of the fruit and had a leathery texture, what would be the issue?"], "severity_templates": ["How severe is the anthracnose infection on this fruit?", "What percentage of this pepper's surface is covered by lesions?", "Would you classify this infection as mild, moderate, or severe?"], "confounders": ["Is this anthracnose or bacterial spot?", "Could this be blossom-end rot instead of anthracnose?"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Use even, diffuse light. Avoid harsh shadows or overexposure which can hide lesion details like color gradients, concentric rings, and spore masses.", "occlusion_notes": "The primary fruit lesion(s) should be in focus and not significantly obscured by leaves, stems, or other objects."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "N/A", "created_at": "2023-10-27T11:30:00Z", "updated_at": "2023-10-27T11:30:00Z", "sources": ["University Extension Plant Disease Management Guides", "APS Compendium of Pepper Diseases", "General Plant Pathology Resources"]}}
+{"schema_version": "1.0.0", "disease_id": "pepper.disease_fungal.blight", "aliases": ["Phytophthora blight", "chile wilt", "crown rot"], "crop": {"common_name": "pepper", "scientific_name": "Capsicum annuum", "family": "Solanaceae"}, "condition": {"common_name": "blight", "scientific_name": "Phytophthora capsici", "alt_names": ["Phytophthora blight", "Phytophthora root and crown rot"], "pathogen": {"type": "disease_oomycete", "taxonomy": {"kingdom": "Stramenopila", "phylum": "Oomycota", "class": "Oomycetes", "order": "Peronosporales", "family": "Peronosporaceae", "genus": "Phytophthora", "species": "capsici"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": ["fungus gnats", "shore flies"], "dispersal": ["water splash (rain, irrigation)", "contaminated soil", "infected transplants", "contaminated equipment"], "overwintering": ["as oospores in soil", "in infested plant debris"]}, "environmental_risk": {"risk_factors": ["poorly drained or heavy clay soils", "standing water after heavy rain or irrigation", "warm, humid weather", "overhead irrigation"], "temp_c_day": [24, 29], "temp_c_night": [18, 24], "relative_humidity_pct": [80, 100], "leaf_wetness_hours_threshold": 6}, "severity_rubric": {"unit": "qualitative", "mild": "Localized lesions on a few leaves or a small, non-girdling stem canker. No wilting is present.", "moderate": "Multiple stem cankers, significant leaf blight on several branches, or initial wilting on parts of the plant during the heat of the day.", "severe": "Whole plant is permanently wilted, the main stem is girdled by a dark canker at the crown, and the plant is dead or dying.", "notes": "Severity is based on the progression of systemic infection. Wilting is a key indicator of moderate to severe infection as it signals root and/or crown rot."}, "symptoms": {"leaves": ["Small, dark green, water-soaked lesions that expand rapidly into large, irregular tan-to-brown patches.", "Affected leaves appear blighted or scalded.", "Leaves may drop, leading to defoliation."], "stems": ["Dark brown to black, water-soaked lesions, most commonly at the soil line (crown rot).", "Stem lesions can girdle the stem, causing sudden wilting and collapse of the entire plant.", "Cankers can also form on upper stems and branches, causing dieback above the lesion."], "fruit": ["Large, water-soaked lesions develop, which may be covered with a white, powdery or cottony mold (sporangia) in humid conditions.", "Infected fruit shrivels, becomes mummified, and often remains attached to the plant."], "roots": ["Root system turns dark brown, becomes soft, and decays.", "Destruction of the taproot and lateral roots leads to poor water and nutrient uptake."], "whole_plant": ["Sudden, permanent wilting of the entire plant, often without prior yellowing.", "Stunted growth and rapid plant death, especially in wet, warm conditions."], "signs_microscopic_or_visible": ["White, cottony mycelial growth and powdery-looking sporangia on the surface of fruit or stem lesions during periods of high humidity."]}, "lookalikes": [{"condition_name": "bacterial_spot", "condition_id": "pepper.disease_bacterial.bacterial_spot", "key_differences": ["Bacterial spot lesions on leaves are small, angular, and often have a 'shot-hole' look, while blight lesions are large, irregular, and water-soaked.", "Bacterial spot fruit lesions are raised, rough, and scabby, unlike the soft, moldy rot of blight.", "Bacterial spot does not cause the dark, girdling stem cankers at the soil line or the sudden whole-plant wilting characteristic of Phytophthora blight."]}, {"condition_name": "anthracnose", "condition_id": "pepper.disease_fungal.anthracnose", "key_differences": ["Anthracnose fruit lesions are distinctly sunken and circular, often with concentric rings and salmon-colored spore masses, whereas blight lesions are water-soaked and covered in white mold.", "Anthracnose does not cause crown rot or sudden, total plant wilting.", "While anthracnose can cause stem lesions, they are typically less aggressive and do not girdle the stem like Phytophthora blight."]}, {"condition_name": "root_rot", "condition_id": "pepper.disease_fungal.root_rot", "key_differences": ["While other root rots (e.g., Pythium, Rhizoctonia) cause wilting, Phytophthora blight is distinguished by the prominent, dark brown to black canker at the soil line (crown rot).", "Phytophthora blight also causes aggressive foliar and fruit blight symptoms, which are often absent or less severe with other common root rot pathogens.", "Wilting from Phytophthora blight is often more rapid and complete due to the combination of root rot and stem girdling."]}], "management": {"cultural": ["Plant in well-drained soil, using raised beds to improve drainage.", "Practice careful water management; avoid overwatering and use drip irrigation instead of overhead.", "Implement a crop rotation of at least 3 years with non-host crops (e.g., corn, beans).", "Sanitize all tools, equipment, and stakes to prevent spread.", "Promptly remove and destroy infected plants and surrounding soil."], "biological": ["Application of soil-drench bio-fungicides containing beneficial microbes like *Trichoderma* spp. or *Bacillus* spp. can help suppress the pathogen."], "chemical": ["Preventative applications of targeted oomycete-specific fungicides (e.g., mefenoxam, metalaxyl, phosphites) as a soil drench or foliar spray.", "Fungicide resistance is a concern; rotate fungicide groups (FRAC codes)."], "notes": "An integrated approach is essential. Management relies heavily on preventative cultural practices, as chemical treatments are largely ineffective once the plant is severely infected and wilting."}, "qa_seeds": {"verification_templates": ["Is there a dark, water-soaked lesion girdling the main stem near the soil line?", "Does the plant show sudden and complete wilting?", "Are there large, irregular, tan-colored blighted areas on the leaves?", "Is there a white, cottony or powdery mold growing on the surface of a rotting pepper fruit?", "Does the stem appear black and constricted at the base?"], "attribute_templates": ["What color is the canker on the stem?", "Describe the appearance of the spots on the leaves.", "Is the wilting affecting only one branch or the entire plant?", "Where on the plant are the water-soaked lesions located?", "Is there any visible mold on the fruit, and if so, what color is it?", "Is the base of the plant, where it meets the soil, discolored?"], "diagnosis_templates": ["What disease is likely causing this pepper plant to suddenly wilt and die, especially with the dark lesion at its base?", "Based on the water-soaked lesions on the leaves, crown rot, and moldy fruit, what is the diagnosis?", "What pepper disease thrives in wet, warm soil and causes both root rot and foliar blight?"], "counterfactual_templates": ["If the spots on the fruit were sunken with orange rings instead of being covered in white mold, what disease would it be?", "What would the symptoms look like if this were bacterial spot instead of blight?", "If the plant was wilting but had no dark canker at the soil line, what else could be the problem?"], "severity_templates": ["How severe is the blight infection if the entire plant is wilted and collapsed?", "Based on the image showing only a few leaf lesions and no wilting, what is the severity of the blight?", "Is the blight infection mild, moderate, or severe?"], "confounders": ["bacterial_spot", "anthracnose", "root_rot"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Use diffuse, even lighting. Avoid hard shadows or direct sunlight that can wash out lesion colors or create misleading dark spots.", "occlusion_notes": "The base of the stem (crown) is a critical diagnostic area. Ensure it is not obscured by mulch, lower leaves, or other plants in the image."}, "provenance": {"created_by": "Expert Plant Pathologist", "reviewed_by": "VQA Dataset Designer", "created_at": "2023-10-27T11:30:00Z", "updated_at": "2023-10-27T11:30:00Z", "sources": ["University Extension Plant Disease Management Guides", "APS Compendium of Pepper Diseases", "CABI Invasive Species Compendium"]}}
+{"schema_version": "1.0.0", "disease_id": "pepper.unknown.fruit_rot", "aliases": ["pepper rot", "pod rot", "fruit decay"], "crop": {"common_name": "Pepper", "scientific_name": "Capsicum annuum", "family": "Solanaceae"}, "condition": {"common_name": "Fruit Rot", "scientific_name": "Various", "alt_names": ["Pepper fruit decay"], "pathogen": {"type": "UNKNOWN", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "unknown", "transmission": {"vectors": ["Insects (e.g., fruit flies, pepper weevils)"], "dispersal": ["Rain splash", "Wind", "Contaminated tools", "Infected seed"], "overwintering": ["Infected plant debris", "In soil as mycelia or resting spores", "On perennial host weeds"]}, "environmental_risk": {"risk_factors": ["High humidity", "Prolonged periods of fruit wetness", "Poor air circulation within the plant canopy", "Fruit injury from insects, sunscald, or mechanical damage", "Calcium deficiency in soil (linked to blossom-end rot)"], "temp_c_day": [24, 32], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 6}, "severity_rubric": {"unit": "qualitative", "mild": "One or a few small, superficial spots or lesions on a single fruit; less than 10% of the total fruit surface is affected.", "moderate": "Multiple lesions or a single large lesion covering 10-40% of the fruit surface; some tissue collapse or softening is evident.", "severe": "Extensive decay covering >40% of the fruit surface, often with secondary mold growth, complete fruit collapse, or mummification.", "notes": "Severity is assessed on the most affected fruit on the plant. This rubric covers a range of causal agents for fruit rot."}, "symptoms": {"leaves": ["May show spots or blight if the fruit rot is part of a larger disease syndrome.", "General yellowing or wilting can occur if the plant is heavily stressed by the infection."], "stems": ["Stem cankers or lesions may be present, especially near the fruit peduncle (stalk)."], "fruit": ["Water-soaked, sunken lesions on the fruit surface.", "Lesions may be tan, brown, black, or exhibit concentric rings.", "Soft, watery decay of fruit tissue, often progressing rapidly.", "Visible fuzzy or hairy mold growth (e.g., white, gray, black) on lesions under humid conditions.", "Lesions frequently initiate at the blossom end, stem end, or at a wound site.", "Affected fruit may shrivel, mummify, and remain attached to the plant.", "Internal tissue and seeds may be discolored and rotten."], "roots": [], "whole_plant": ["General stunting or wilting if the underlying cause is a systemic pathogen like Phytophthora."], "signs_microscopic_or_visible": ["Visible mycelium (mold growth) on the fruit surface.", "Presence of fruiting bodies (e.g., pycnidia, acervuli) as small black specks within lesions."]}, "lookalikes": [{"condition_name": "anthracnose", "condition_id": "pepper.fungal.anthracnose", "key_differences": ["Anthracnose lesions are distinctly circular and sunken with prominent concentric rings.", "A key sign of anthracnose is the presence of salmon-pink to orange spore masses (acervuli) in the center of mature lesions.", "General fruit rots can be more irregular in shape and may have white or gray mold instead of pink/orange spore masses."]}, {"condition_name": "bacterial_spot", "condition_id": "pepper.bacterial.bacterial_spot", "key_differences": ["Bacterial spot on fruit causes small, raised, rough, or scabby lesions, not large sunken areas of soft rot.", "Initial bacterial spots on fruit are water-soaked but become firm and wart-like, unlike the soft decay of most rots.", "Bacterial spot is almost always accompanied by characteristic angular, necrotic spots on the leaves."]}, {"condition_name": "blight", "condition_id": "pepper.oomycete.blight", "key_differences": ["Phytophthora blight causes large, dark, water-soaked lesions that are often covered in a coarse, white, cottony mold.", "This disease also causes rapid wilting of the entire plant and distinctive dark, greasy lesions on the main stem, often at the soil line.", "Fruit infected with Phytophthora blight shrivel into dry, lightweight 'mummies' that remain on the plant."]}], "management": {"cultural": ["Rotate crops with non-solanaceous plants for at least 3 years.", "Improve air circulation through adequate plant spacing and pruning.", "Use mulch (e.g., straw or plastic) to create a barrier between the soil and fruit.", "Use drip irrigation to keep foliage and fruit dry.", "Remove and destroy infected fruit and plant debris immediately.", "Ensure balanced soil fertility, particularly adequate calcium levels, to prevent blossom-end rot."], "biological": ["Application of bio-fungicides containing beneficial microbes like *Bacillus subtilis* or *Trichoderma* species can suppress some pathogens."], "chemical": ["Apply preventative, broad-spectrum fungicides (e.g., copper-based products, chlorothalonil, mancozeb) before disease onset, especially during periods of high humidity and rainfall.", "Once a specific pathogen is identified, targeted fungicides may be more effective."], "notes": "The most effective management strategy often combines multiple cultural practices. Chemical control is most effective when used preventatively."}, "qa_seeds": {"verification_templates": ["Is there evidence of rot or decay on the pepper fruit?", "Does the fruit have a large, soft, discolored spot?", "Is there mold growing on the surface of the pepper?", "Are there sunken lesions on the fruit?"], "attribute_templates": ["What color is the rotten area on the fruit?", "Is the lesion on the fruit sunken or raised?", "Is the texture of the rot soft and watery or dry and scabby?", "Where is the rot located on the fruit (e.g., stem end, blossom end, side)?", "Is there any fuzzy growth on the lesion? If so, what color is it?", "Does the lesion have distinct concentric rings?"], "diagnosis_templates": ["What is causing this pepper fruit to rot?", "Is this fruit rot caused by a fungus, bacteria, or a physiological disorder?", "What disease is present on the fruit?"], "counterfactual_templates": ["If the spots were small, raised, and scabby instead of large and sunken, could it be bacterial spot?", "If the plant was also wilting and had a dark lesion on the main stem, would it be Phytophthora blight?", "If the lesion had distinct concentric rings and salmon-colored spore masses, would it be anthracnose?"], "severity_templates": ["How severe is the fruit rot infection?", "What percentage of the pepper's surface is covered in rot?", "Would you classify the fruit rot as mild, moderate, or severe?"], "confounders": ["anthracnose", "blight", "bacterial_spot"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Use diffuse, even lighting. Avoid harsh shadows or direct sunlight that can obscure lesion color, texture, and the presence of mold.", "occlusion_notes": "The affected fruit and lesion should be clearly visible and not significantly obscured by leaves, stems, or other fruit."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University Extension Plant Disease Guides", "APS Compendium of Pepper Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "pepper.pest_mite.mites", "aliases": ["spider mites", "broad mites", "two-spotted spider mite"], "crop": {"common_name": "Pepper", "scientific_name": "Capsicum annuum", "family": "Solanaceae"}, "condition": {"common_name": "Mites", "scientific_name": "Tetranychus urticae, Polyphagotarsonemus latus", "alt_names": ["Spider Mites", "Broad Mites", "Cyclamen Mites"], "pathogen": {"type": "Arthropod", "taxonomy": {"kingdom": "Animalia", "phylum": "Arthropoda", "class": "Arachnida", "order": "Trombidiformes", "family": "Tetranychidae", "genus": "Tetranychus", "species": "urticae"}}}, "issue_type": "pest_mite", "transmission": {"vectors": ["Wind", "Humans (on clothing/equipment)", "Infected transplants"], "dispersal": ["Wind currents", "Crawling from plant to plant"], "overwintering": ["In crop debris", "On perennial weeds", "In greenhouse structures"]}, "environmental_risk": {"risk_factors": ["Hot, dry conditions", "Dusty environments", "Low humidity", "Over-application of broad-spectrum insecticides"], "temp_c_day": [25, 35], "temp_c_night": [], "relative_humidity_pct": [0, 50], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Fine stippling on a few leaves; mites may be present but no visible webbing.", "moderate": "Widespread stippling or bronzing on multiple leaves; some fine webbing may be visible on leaf undersides or at petiole junctions.", "severe": "Leaves are heavily stippled, bronzed, or yellowed; extensive webbing covering leaves, stems, and growing points; visible mite colonies.", "notes": "Severity is assessed by the combination of leaf stippling/bronzing intensity and the presence/extent of webbing. Leaf wetness is generally unfavorable for mites, so the threshold is not a primary risk driver."}, "symptoms": {"leaves": ["Fine, pale yellow or white stippling on upper leaf surfaces.", "Leaves appear dusty or dirty, especially on the underside.", "Leaf undersides show a bronze or silvery sheen (characteristic of broad mites).", "Leaves may become brittle, distorted, or curl downwards.", "In severe cases, leaves turn yellow or brown and drop prematurely.", "New growth is stunted, twisted, or malformed."], "stems": ["Fine webbing may be present between stems and leaves, especially at nodes."], "fruit": ["Fruit surfaces may become scarred, bronzed, or russeted.", "Fruit may be deformed or smaller than normal."], "roots": [], "whole_plant": ["Overall plant vigor is reduced.", "Stunted growth."], "signs_microscopic_or_visible": ["Presence of tiny, moving specks (mites) on leaf undersides, best seen with a hand lens.", "Fine, silk-like webbing on undersides of leaves and at leaf axils.", "Presence of tiny spherical eggs on leaf undersides along veins."]}, "lookalikes": [{"condition_name": "Thrips", "condition_id": "pepper.pest_insect.thrips", "key_differences": ["Thrips damage often appears as silvery patches or streaks, while mite damage is typically fine stippling.", "Thrips leave tiny black specks of frass (excrement); mite infestations do not have these.", "Webbing is a key sign of spider mites but is absent with thrips.", "Thrips are small, elongated insects, whereas mites are tiny, round-bodied arachnids."]}, {"condition_name": "Virus", "condition_id": "pepper.viral.virus", "key_differences": ["Mite damage often starts as stippling, while viral symptoms are more commonly mosaics, mottling, or distinct ring spots.", "The presence of mites or webbing on the leaf underside confirms mite damage; these signs are absent in a primary viral infection.", "Viral leaf distortion is often systematic (e.g., fernleaf), whereas mite-induced distortion is often accompanied by bronzing or stippling."]}], "management": {"cultural": ["Maintain adequate irrigation and avoid water stress.", "Use overhead watering or syringing to wash off mites and raise humidity.", "Control dust on nearby roads or paths.", "Remove and destroy heavily infested plants and nearby weeds."], "biological": ["Introduce and conserve predatory mites (e.g., Phytoseiulus persimilis, Neoseiulus californicus).", "Encourage populations of other natural enemies like lacewings, lady beetles, and minute pirate bugs."], "chemical": ["Apply selective miticides (acaricides) ensuring thorough coverage of leaf undersides.", "Rotate chemical classes to prevent resistance.", "Horticultural oils and insecticidal soaps can be effective with direct contact and repeated application."], "notes": "Early detection is crucial. Scout undersides of lower leaves regularly with a hand lens, especially during hot, dry weather."}, "qa_seeds": {"verification_templates": ["Is there fine, silk-like webbing on the leaves or stems?", "Can you see tiny, pale stippling or dots on the upper surface of the leaves?", "Does the underside of the leaf look dusty or have tiny moving specks?", "Are the leaves bronzed or taking on a silvery sheen?", "Is the new growth stunted and distorted?", "Is the damage concentrated on the lower, older leaves first?"], "attribute_templates": ["What color is the stippling on the leaves?", "Where on the plant is the webbing located?", "Describe the texture of the damaged leaf surface.", "Are the leaves curled upwards or downwards?", "How extensive is the webbing?", "Is the damage on the top or bottom of the leaf?"], "diagnosis_templates": ["Based on the fine stippling and webbing, what pest is affecting this pepper plant?", "What is the likely cause of the bronzing and stunted new growth on these leaves?", "Is this plant suffering from a mite infestation?"], "counterfactual_templates": ["If this were thrips damage, what other sign would you expect to see?", "What would you look for to rule out a nutritional deficiency causing the yellowing?"], "severity_templates": ["How would you rate the severity of this mite infestation: mild, moderate, or severe?", "Is there extensive webbing covering entire leaves and stems?", "Based on the amount of stippling and webbing, what is the severity level?"], "confounders": ["thrips", "virus", "bacterial_spot"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse lighting is best. Avoid harsh shadows that can obscure stippling or webbing. Backlighting can help reveal fine webbing.", "occlusion_notes": "Ensure a clear view of both the upper and lower leaf surfaces, as signs (mites, eggs, webbing) are often concentrated on the underside."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University Extension Pest Management Guides", "APS Compendium of Pepper Diseases", "General Entomology and Acarology Textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "pepper.unknown.root_rot", "aliases": ["damping-off", "Phytophthora root rot", "Pythium root rot", "Fusarium crown and root rot"], "crop": {"common_name": "pepper", "scientific_name": "Capsicum annuum", "family": "Solanaceae"}, "condition": {"common_name": "root rot", "scientific_name": null, "alt_names": ["damping-off", "crown rot", "water mold"], "pathogen": {"type": "fungal-like", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "unknown", "transmission": {"vectors": ["fungus gnats", "shore flies"], "dispersal": ["contaminated soil", "splashing water", "infected transplants", "contaminated tools and equipment"], "overwintering": ["in soil as dormant spores (oospores, chlamydospores)", "on infected plant debris"]}, "environmental_risk": {"risk_factors": ["poorly drained or compacted soil", "overwatering or excessive rainfall", "low soil oxygen", "high soil salinity", "warm soil temperatures"], "temp_c_day": [24, 32], "temp_c_night": [20, 26], "relative_humidity_pct": [80, 100], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Slight stunting or yellowing of lower leaves. Plant may wilt during the hottest part of the day but recovers at night.", "moderate": "Noticeable stunting. Persistent wilting of lower and mid-canopy leaves. Some leaf drop may occur.", "severe": "Plant is severely stunted or dead. Widespread, permanent wilting. Stem may be girdled at the soil line. Plant easily pulled from the ground.", "notes": "Severity is assessed on the whole-plant level, focusing on the extent of wilting, stunting, and plant collapse. Root examination is required for definitive diagnosis."}, "symptoms": {"leaves": ["Lower leaves turn yellow (chlorosis), then brown", "Leaves wilt, starting from the bottom of the plant", "Wilting occurs even when soil is moist", "Premature leaf drop"], "stems": ["Dark, water-soaked lesion forms at the soil line", "Stem becomes constricted, girdled, or 'wiry' at the base", "Internal vascular tissue may show brown discoloration when cut"], "fruit": ["Fruit may be small, shriveled, or fail to develop"], "roots": ["Roots appear brown, soft, and water-soaked (mushy)", "The outer layer (cortex) of the root sloughs off easily, leaving the inner core", "Significant reduction in root mass"], "whole_plant": ["Stunted growth compared to healthy plants", "Sudden wilting and rapid death of the plant", "Seedlings collapse at the soil line (damping-off)"], "signs_microscopic_or_visible": ["White, cottony mold (mycelium) may be visible on the stem base or soil surface in highly saturated conditions"]}, "lookalikes": [{"condition_name": "blight", "condition_id": "pepper.fungal-like.blight", "key_differences": ["Blight often causes large, dark lesions on leaves and upper stems, not just at the soil line.", "Blight can directly infect and cause large, sunken, rotten spots on the fruit itself.", "With root rot, the primary symptom is bottom-up wilting due to root decay; blight can cause rapid collapse from infections anywhere on the plant.", "In early blight infection, the root system may appear healthy, whereas it is the first part affected by root rot."]}, {"condition_name": "virus", "condition_id": "pepper.viral.virus", "key_differences": ["Virus symptoms frequently include mosaic patterns, mottling, leaf distortion, or distinct ring spots, which are absent in root rot.", "Wilting from a virus (e.g., TSWV) can be one-sided (unilateral) or accompanied by necrotic stem streaks, but the roots are not soft and decayed.", "Root rot does not cause the malformed, curled, or stunted new growth characteristic of many viral infections."]}], "management": {"cultural": ["Ensure good soil drainage; use raised beds in heavy soils", "Avoid overwatering and allow soil surface to dry between irrigations", "Rotate crops with non-susceptible families (e.g., grasses, legumes)", "Use certified disease-free transplants and seeds", "Sanitize all tools, containers, and greenhouse surfaces between plantings"], "biological": ["Incorporate high-quality compost to improve soil structure and promote beneficial microbes", "Apply commercially available bio-fungicides containing *Trichoderma* or *Bacillus subtilis* to the soil"], "chemical": ["Apply preventative fungicides (e.g., mefenoxam, propamocarb, phosphites) as a soil drench at planting or transplanting", "Consider pre-plant soil fumigation in fields with a history of severe disease pressure"], "notes": "Preventative measures, especially water management and soil health, are key. Chemical treatments are most effective when applied before symptoms appear and are often not curative on severely infected plants."}, "qa_seeds": {"verification_templates": ["Is the base of the stem, near the soil, dark or discolored?", "Are the lower leaves of the pepper plant yellow or wilting?", "Does the plant appear stunted compared to healthy neighbors?", "Is the entire plant wilting even though the soil feels moist?", "Can the plant be pulled easily from the ground, indicating a weak root system?"], "attribute_templates": ["What color is the stem at the soil line?", "Describe the appearance of the roots.", "Where on the plant did the wilting begin?", "Is there any sign of mold on the soil or at the base of the plant?", "Are the leaves showing any spots or patterns, or just wilting and yellowing?"], "diagnosis_templates": ["Why is my pepper plant wilting from the bottom up?", "The stem base is dark and thin and the plant is dying. What disease is this?", "Based on the stunted growth and yellowing lower leaves, could this be root rot?"], "counterfactual_templates": ["If this were blight instead of root rot, what symptoms would I expect to see on the fruit?", "What would the roots look like if the plant were healthy?", "If a virus was causing the wilting, what other signs like leaf mottling or distortion might be present?"], "severity_templates": ["How would you rate the severity of the wilting on this plant?", "Based on the overall stunting and wilting, is this a mild, moderate, or severe case of root rot?"], "confounders": ["Could the wilting be caused by blight instead of root rot?", "Is it possible this is a virus and not a root disease?", "Are you sure the plant isn't just wilting from lack of water?"]}, "data_requirements": {"min_resolution_px": 1024, "min_roi_fraction": 0.4, "lighting_notes": "Use even, diffuse light. Avoid harsh shadows that can obscure the stem base and soil line.", "occlusion_notes": "The base of the stem at the soil line must be clearly visible. Move aside low-hanging leaves or mulch. Images of the extracted root ball are extremely useful for confirmation."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["University extension guides for vegetable diseases", "APS Compendium of Pepper Diseases", "General plant pathology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "pepper.disease_fungal.spot", "aliases": ["Cercospora leaf spot", "Frogeye spot"], "crop": {"common_name": "Pepper", "scientific_name": "Capsicum annuum", "family": "Solanaceae"}, "condition": {"common_name": "Fungal Spot", "scientific_name": "Cercospora capsici", "alt_names": ["Cercospora leaf spot"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Capnodiales", "family": "Mycosphaerellaceae", "genus": "Cercospora", "species": "capsici"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["Wind", "Rain splash", "Contaminated tools", "Infected seed"], "overwintering": ["Infected crop debris", "On seed", "In soil"]}, "environmental_risk": {"risk_factors": ["High humidity", "Poor air circulation", "Overhead irrigation", "Warm temperatures", "Prolonged leaf wetness"], "temp_c_day": [23, 30], "temp_c_night": [], "relative_humidity_pct": [85, 95], "leaf_wetness_hours_threshold": 10}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "< 5% of leaf area affected with spots. Little to no yellowing.", "moderate": "5-25% of leaf area affected, some associated yellowing (chlorosis) may be present.", "severe": "> 25% of leaf area affected, significant chlorosis, and premature leaf drop (defoliation) is occurring.", "notes": "Severity is assessed on the most affected leaves. Defoliation is a key indicator of severe infection."}, "symptoms": {"leaves": ["Initial symptoms are small, water-soaked spots on lower leaves.", "Spots enlarge to circular lesions, 3-10 mm in diameter.", "Mature lesions develop a distinct light gray, tan, or white center.", "A dark brown to black border surrounds the pale center, creating a 'frogeye' appearance.", "Lesion centers may become brittle and fall out, creating a 'shot-hole' effect.", "A yellow halo (chlorosis) may develop around individual spots.", "Infected leaves turn yellow, wither, and drop prematurely, starting from the bottom of the plant."], "stems": ["Elongated, oval-shaped lesions with pale centers and dark borders may appear on stems and petioles."], "fruit": ["Fruit infection is rare, but small, sunken, dark spots can occur, particularly on the calyx (stem cap)."], "roots": [], "whole_plant": ["Significant defoliation of lower and mid-canopy leaves.", "Reduced plant vigor and stunted growth.", "Sunscald on fruit exposed to direct sun due to loss of protective leaf cover."], "signs_microscopic_or_visible": ["Under high humidity, fuzzy, dark sporulation (conidiophores) may be visible in the center of lesions, often requiring a hand lens."]}, "lookalikes": [{"condition_name": "Bacterial Spot", "condition_id": "pepper.disease_bacterial.bacterial_spot", "key_differences": ["Bacterial spots are often angular and limited by leaf veins, whereas fungal spots are typically circular.", "Bacterial spots look dark and water-soaked or 'greasy', lacking the distinct pale 'frogeye' center of Cercospora.", "Bacterial spots do not typically have a 'shot-hole' appearance where the center drops out.", "Bacterial spots on fruit are common, appearing as raised, scabby, or wart-like lesions."]}, {"condition_name": "Anthracnose", "condition_id": "pepper.disease_fungal.anthracnose", "key_differences": ["Anthracnose primarily affects fruit, causing large, circular, sunken lesions that are much larger than leaf spots.", "Anthracnose lesions on fruit often have visible concentric rings and develop salmon-pink to orange spore masses in the center.", "Leaf spots from anthracnose are less common and are typically small, brown, and less defined than Cercospora's 'frogeye' spots."]}], "management": {"cultural": ["Use certified disease-free seed and transplants.", "Practice crop rotation with non-solanaceous crops for at least 3 years.", "Improve air circulation through proper plant spacing and pruning.", "Avoid overhead irrigation to minimize leaf wetness; use drip irrigation.", "Remove and destroy infected plant debris at the end of the season.", "Apply mulch to create a barrier between the soil and lower leaves."], "biological": ["Application of bio-fungicides containing strains of *Bacillus subtilis* or *Trichoderma* can suppress disease development."], "chemical": ["Apply preventative fungicides containing copper, mancozeb, or chlorothalonil.", "For curative action, use systemic fungicides (e.g., strobilurins, triazoles), rotating chemical groups to prevent resistance."], "notes": "Fungicide applications are most effective when started preventatively, before symptoms are widespread, especially when weather forecasts predict favorable conditions for disease."}, "qa_seeds": {"verification_templates": ["Does this pepper leaf have circular spots with pale centers and dark borders?", "Is there evidence of a 'frogeye' pattern on the leaf lesions?", "Are the spots causing the center of the lesion to fall out, creating a 'shot-hole' look?", "Can you confirm the presence of round, tan-centered spots?", "Are the lower, older leaves more affected than the upper, new leaves?", "Is there significant yellowing and leaf drop associated with the spots?"], "attribute_templates": ["What color is the center of the leaf spots?", "What shape are the lesions on the leaf?", "Is there a distinct, dark border around the spots?", "What part of the plant is most affected?", "Are the spots causing holes in the leaf?", "Describe the color of the leaf tissue surrounding the spots."], "diagnosis_templates": ["Based on the 'frogeye' spots with pale centers on the leaves, what is the likely disease?", "What fungal disease on pepper causes circular spots, a shot-hole effect, and defoliation?", "The pepper plant shows distinct, bordered lesions with white centers on its lower leaves. What is the diagnosis?"], "counterfactual_templates": ["If the spots were angular and greasy instead of circular with pale centers, what would the disease likely be?", "If the primary symptom was large, sunken lesions with orange spore masses on the fruit, what would the disease be?"], "severity_templates": ["What percentage of this leaf's surface is covered by spots?", "How would you rate the severity of the fungal spot infection: mild, moderate, or severe?", "Is there evidence of defoliation, indicating a severe infection?"], "confounders": ["bacterial_spot", "anthracnose", "mites"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.3, "lighting_notes": "Use even, diffuse lighting. Avoid harsh shadows or direct sunlight, which can obscure lesion details like the pale center and dark border.", "occlusion_notes": "The symptomatic leaf should be clearly visible and not heavily occluded by other leaves. Capturing multiple lesions in focus is ideal."}, "provenance": {"created_by": "Expert Plant Pathologist", "reviewed_by": "VQA Dataset Designer", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["University extension plant pathology guides", "APS Compendium of Pepper Diseases", "General plant pathology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "pepper.pest_insect.thrips", "aliases": ["Thrips feeding injury", "Thrips damage on pepper"], "crop": {"common_name": "Pepper", "scientific_name": "Capsicum annuum", "family": "Solanaceae"}, "condition": {"common_name": "Thrips", "scientific_name": "Frankliniella occidentalis, Thrips tabaci, et al.", "alt_names": ["Western flower thrips", "Onion thrips", "Chilli thrips"], "pathogen": {"type": "insect", "taxonomy": {"kingdom": "Animalia", "phylum": "Arthropoda", "class": "Insecta", "order": "Thysanoptera", "family": "Thripidae", "genus": "", "species": ""}}}, "issue_type": "pest_insect", "transmission": {"vectors": ["Thrips can vector tospoviruses (e.g., Tomato spotted wilt virus, Impatiens necrotic spot virus)."], "dispersal": ["Wind currents", "Movement of infested plants or soil", "Adult flight between plants"], "overwintering": ["As pupae in soil or leaf litter", "As adults on weed hosts or in crop debris", "In protected environments like greenhouses"]}, "environmental_risk": {"risk_factors": ["Hot, dry weather conditions", "Presence of alternative weed hosts (e.g., pigweed, nightshade)", "High nitrogen fertilization leading to succulent growth", "Unscreened vents in greenhouses"], "temp_c_day": [25, 32], "temp_c_night": [], "relative_humidity_pct": [40, 60], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf surface shows stippling or a silvery sheen. A few thrips may be visible upon close inspection.", "moderate": "11-40% of leaf surface affected. Obvious silvery patches and black frass specks are present. Leaf distortion may be visible on new growth.", "severe": ">40% of leaf surface affected. Widespread silvering, stunting of new growth, leaf curling, and visible scarring on fruit.", "notes": "Severity measures the visual impact of feeding damage (stippling, silvering) on leaves and fruit. It does not directly count the number of thrips, which can be difficult to assess from a typical image."}, "symptoms": {"leaves": ["Fine, whitish or silvery stippling on the leaf surface where cells have been punctured.", "Affected leaves develop a distinct silvery or bronze sheen.", "Small, black, varnish-like specks (frass or excrement) are visible on damaged areas.", "New leaves may appear distorted, cupped, or curled upwards.", "In severe cases, leaves can become brittle, wilt, and drop prematurely."], "stems": ["Feeding on young stems and growing points can cause stunting."], "fruit": ["Silvery or tan-colored scars, often in a circular 'halo' pattern around the calyx (stem end).", "Surface bronzing or development of a corky, rough texture on the fruit skin.", "Deformation or stunting of young, developing fruit."], "roots": [], "whole_plant": ["Stunted overall growth and reduced plant vigor.", "Flower drop and reduced fruit set in heavy infestations."], "signs_microscopic_or_visible": ["Tiny, slender insects (1-2 mm long), pale yellow to dark brown, are visible on leaf undersides or in flowers.", "Larvae are smaller, often yellowish or whitish, and wingless."]}, "lookalikes": [{"condition_name": "Mites", "condition_id": "pepper.pest_arachnid.mites", "key_differences": ["Mite damage often includes fine, silky webbing, which is absent with thrips.", "Mite stippling is typically finer and more yellow/bronze, while thrips damage is often more silvery.", "Mites are tiny, dot-like arachnids (8 legs), whereas adult thrips are slender insects (6 legs).", "Thrips leave characteristic black frass specks; mites do not."]}, {"condition_name": "Virus", "condition_id": "pepper.disease_viral.virus", "key_differences": ["Viral symptoms often form systemic mosaic, mottled, or ring spot patterns, unlike the surface-level feeding damage of thrips.", "Thrips damage includes visible black frass specks and often the insects themselves; these signs are absent in a primary viral infection.", "Virus-induced leaf curling is often more uniform and severe than the localized distortion from thrips feeding on new growth."]}, {"condition_name": "Bacterial Spot", "condition_id": "pepper.disease_bacterial.bacterial_spot", "key_differences": ["Bacterial spots are discrete, often water-soaked lesions that turn dark, unlike the diffuse stippling or silvering from thrips.", "Bacterial spots on fruit are typically raised, scabby, or cracked, while thrips scarring is smoother or has a corky texture.", "Bacterial leaf spots may have a yellow halo and the centers can fall out, creating a 'shot-hole' effect not seen with thrips."]}], "management": {"cultural": ["Use reflective mulches (e.g., silver plastic) to disorient and deter thrips.", "Remove and destroy weed hosts in and around the growing area.", "Avoid over-fertilizing with nitrogen, which promotes succulent growth favored by thrips.", "Install fine-mesh screening on greenhouse vents and doorways."], "biological": ["Release of predatory mites (e.g., Amblyseius swirskii, Neoseiulus cucumeris).", "Introduction of minute pirate bugs (Orius spp.) or green lacewing larvae.", "Application of entomopathogenic fungi like Beauveria bassiana or Isaria fumosorosea."], "chemical": ["Application of insecticidal soaps or horticultural oils for suppression, ensuring thorough coverage.", "Use of targeted insecticides such as spinosad or acetamiprid.", "Rotate chemical classes (modes of action) to prevent or delay insecticide resistance."], "notes": "Integrated Pest Management (IPM) is crucial. Monitor populations using blue or yellow sticky cards to detect adults and guide treatment timing."}, "qa_seeds": {"verification_templates": ["Does this pepper leaf show signs of thrips damage?", "Is the scarring on this pepper fruit consistent with thrips feeding?", "Are there tiny, slender insects visible on this plant?", "Can you confirm the presence of silvery stippling on these leaves?", "Are there black specks, known as frass, on the leaf surface?"], "attribute_templates": ["What is causing the silvery sheen on the leaf?", "Describe the pattern of damage on the fruit.", "Are the leaves curled, spotted, or stippled?", "What color are the insects on the underside of the leaf?", "Is there any webbing visible on the plant?", "What shape is the damage near the stem of the fruit?"], "diagnosis_templates": ["What pest is causing the silvery stippling and black specks on this pepper leaf?", "Based on the fruit scarring and leaf distortion, what is the likely cause?", "What pest is damaging my pepper plants?"], "counterfactual_templates": ["What would this leaf look like if the damage was from spider mites instead of thrips?", "If this was a viral infection, how would the symptoms be different?", "Could this be bacterial spot? Why or why not?"], "severity_templates": ["How severe is the thrips infestation on this leaf?", "What percentage of the leaf surface is covered in silvery stippling?", "Would you classify this thrips damage as mild, moderate, or severe?"], "confounders": ["mites", "virus", "bacterial_spot"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse lighting is best. Avoid harsh shadows or direct sunlight that can create glare and obscure the silvery sheen of thrips damage.", "occlusion_notes": "Ensure the symptomatic leaf or fruit surface is not heavily obscured by other leaves or branches. For insect identification, a clear view of the leaf underside is often necessary."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T12:00:00Z", "updated_at": "2023-10-27T12:00:00Z", "sources": ["University extension guides on pepper pests", "APS Compendium of Pepper Diseases", "General entomology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "pepper.disease_viral.virus", "aliases": ["Pepper mosaic", "Pepper mottle", "CMV on pepper", "TSWV on pepper"], "crop": {"common_name": "Pepper", "scientific_name": "Capsicum annuum", "family": "Solanaceae"}, "condition": {"common_name": "Virus", "scientific_name": "e.g., Pepper mottle virus (PepMoV), Cucumber mosaic virus (CMV), Tomato spotted wilt virus (TSWV)", "alt_names": ["Mosaic", "Mottle", "Spotted Wilt"], "pathogen": {"type": "Virus", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "disease_viral", "transmission": {"vectors": ["Aphids", "Thrips"], "dispersal": ["Insect vectors", "Mechanical (tools, hands)", "Infected seeds", "Infected transplants"], "overwintering": ["Infected perennial weeds", "Infected crop debris", "In insect vectors"]}, "environmental_risk": {"risk_factors": ["High populations of insect vectors (aphids, thrips)", "Proximity to infected weeds or other susceptible crops", "Use of non-certified seed or transplants", "Warm temperatures favoring vector activity and virus replication"], "temp_c_day": [20, 30], "temp_c_night": [15, 25], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Faint mottling or mosaic on a few young leaves; no visible stunting or fruit symptoms.", "moderate": "Obvious mosaic, leaf distortion, or ringspots on multiple leaves; plant may be slightly stunted.", "severe": "Severe mosaic, leaf malformation, necrosis, and significant plant stunting; fruit is distorted, discolored, or has ringspots.", "notes": "Severity is a whole-plant assessment combining foliar symptoms, stunting, and fruit abnormalities. Symptoms can vary greatly depending on the specific virus, pepper variety, and environmental conditions. Leaf wetness is not a primary driver for viral diseases."}, "symptoms": {"leaves": ["Light and dark green mosaic or mottled patterns, especially on young leaves.", "Leaf curling, puckering, blistering, or other malformations.", "Yellow or necrotic ringspots or line patterns ('oak-leaf').", "Vein clearing (veins appear translucent) or vein banding (dark green tissue along veins).", "Narrowing of leaves, sometimes called 'fernleaf' symptom."], "stems": ["Dark, necrotic streaks, particularly with TSWV.", "Shortened internodes leading to a bushy or stunted appearance."], "fruit": ["Malformed, bumpy, or distorted shape.", "Concentric, colored ringspots (e.g., yellow, red, or green rings on ripe fruit).", "Uneven ripening or color breaking (blotchy patches of color).", "Reduced fruit size and number."], "roots": ["Root system is often underdeveloped as a secondary effect of overall plant stunting."], "whole_plant": ["General stunting, yellowing, or dwarfing of the entire plant."], "signs_microscopic_or_visible": ["No visible signs of the pathogen itself. Diagnosis is based on symptoms or lab testing."]}, "lookalikes": [{"condition_name": "bacterial_spot", "condition_id": "pepper.disease_bacterial.bacterial_spot", "key_differences": ["Bacterial spot causes distinct, small, water-soaked lesions that turn dark and necrotic, unlike the systemic patterns of a virus.", "Bacterial lesions may have a 'shot-hole' appearance as centers fall out; viruses do not cause this.", "Virus symptoms are often patterns like mosaics or mottling, not discrete, localized spots.", "Bacterial spot can also appear as raised, scabby spots on fruit, different from viral ringspots or color breaking."]}, {"condition_name": "thrips", "condition_id": "pepper.pest.thrips", "key_differences": ["Thrips feeding creates a silvery or whitish stippling on leaves, not a true green mosaic pattern.", "Tiny black specks of frass (excrement) are often visible on the underside of leaves with thrips damage.", "The insects themselves (very small, slender) may be found on the plant, especially in flowers or on new growth.", "While thrips can cause leaf distortion, it's often accompanied by the characteristic silvery scarring."]}, {"condition_name": "mites", "condition_id": "pepper.pest.mites", "key_differences": ["Mite damage causes fine, uniform stippling, bronzing, or a dusty appearance on leaves.", "Fine webbing may be present on leaf undersides or between stems with spider mite infestations.", "Leaf distortion from mites is typically upward curling and brittleness, rather than the mosaic or fernleaf symptoms of viruses."]}], "management": {"cultural": ["Plant certified virus-free seed and transplants.", "Control insect vectors (aphids, thrips) using reflective mulches, row covers, or scouting.", "Remove and destroy infected plants immediately to reduce spread.", "Maintain a weed-free area around the crop, as many weeds are alternate hosts for viruses and vectors.", "Practice good sanitation by cleaning tools and washing hands after handling infected plants."], "biological": ["Encourage natural predators of aphids and thrips, such as lacewings, lady beetles, and predatory mites."], "chemical": ["Apply appropriate insecticides to manage vector populations, but note this may not be fast enough to prevent initial infection.", "There are no effective chemical treatments (virucides) to cure infected plants."], "notes": "Management is entirely preventive. Once a plant is infected, it cannot be cured and acts as a source of inoculum for other plants."}, "qa_seeds": {"verification_templates": ["Is there a light and dark green mosaic pattern on the leaves?", "Are the leaves curled, puckered, or misshapen?", "Does the plant appear stunted or smaller than expected?", "Are there any ringspots on the fruit?", "Is the fruit's color blotchy or unevenly ripe?"], "attribute_templates": ["What is the pattern of discoloration on the leaves?", "Describe the shape of the fruit.", "What color are the ringspots on the peppers?", "How are the leaves distorted?", "Are there any streaks visible on the stems?"], "diagnosis_templates": ["What is causing the mosaic pattern and stunting on this pepper plant?", "Why are there rings on the pepper fruit?", "What disease causes fernleaf symptoms and malformed fruit in peppers?"], "counterfactual_templates": ["If this were thrips damage, what other signs would I look for on the leaves?", "What would the spots look like if this were bacterial leaf spot instead of a virus?", "If this plant were healthy, how would its leaves and fruit appear?"], "severity_templates": ["How severe is the virus infection on this plant?", "Based on the stunting and leaf mottling, what is the severity of this disease?", "Is this a mild or severe case of pepper virus?"], "confounders": ["thrips", "bacterial_spot", "mites", "herbicide_damage"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Use diffuse, even lighting to avoid harsh shadows that can obscure subtle mosaic, mottling, or vein clearing symptoms on leaves.", "occlusion_notes": "Ensure that young, symptomatic leaves and any affected fruit are clearly visible and not hidden by older, healthy-looking foliage."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2024-05-22T10:00:00Z", "updated_at": "2024-05-22T10:00:00Z", "sources": ["General university extension guides for vegetable diseases", "APS Compendium of Pepper Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "rice.disease_bacterial.bacterial_leaf_blight", "aliases": ["BLB", "Kresek"], "crop": {"common_name": "rice", "scientific_name": "Oryza sativa", "family": "Poaceae"}, "condition": {"common_name": "bacterial leaf blight", "scientific_name": "Xanthomonas oryzae pv. oryzae", "alt_names": ["BLB", "Kresek disease"], "pathogen": {"type": "disease_bacterial", "taxonomy": {"kingdom": "Bacteria", "phylum": "Pseudomonadota", "class": "Gammaproteobacteria", "order": "Xanthomonadales", "family": "Xanthomonadaceae", "genus": "Xanthomonas", "species": "Xanthomonas oryzae"}}}, "issue_type": "disease_bacterial", "transmission": {"vectors": ["wind-driven rain", "irrigation water"], "dispersal": ["water splash", "mechanical contact (tools, workers)", "seed transmission"], "overwintering": ["infected crop stubble and straw", "infected seeds", "rhizomes of perennial weed hosts"]}, "environmental_risk": {"risk_factors": ["high nitrogen fertilizer application", "high relative humidity", "warm temperatures", "frequent rainfall and windy conditions", "susceptible rice varieties", "close plant spacing"], "temp_c_day": [25, 30], "temp_c_night": [], "relative_humidity_pct": [70, 100], "leaf_wetness_hours_threshold": 6}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-5% of leaf area affected. Lesions are small, often confined to the tips or margins of a few leaves.", "moderate": "6-25% of leaf area affected. Lesions have elongated and cover a significant portion of multiple leaf blades. Some yellowing is apparent.", "severe": ">25% of leaf area affected. Large, straw-colored lesions have coalesced, causing entire leaves to dry out and die. Wilting ('Kresek') may be present.", "notes": "Severity is estimated as the percentage of the total foliage area showing symptoms. This aligns with the Standard Evaluation System (SES) for rice."}, "symptoms": {"leaves": ["Begins as water-soaked, linear streaks on leaf tips or margins.", "Streaks enlarge into yellow to grayish-white lesions with characteristic wavy or undulating margins.", "Lesions can extend downwards, covering the entire leaf blade.", "Infected leaves turn straw-colored, wilt, and die.", "In high humidity, milky or opaque bacterial ooze (exudate) appears on lesions, especially in the morning.", "This ooze dries into small, hard, yellowish, bead-like crusts on the leaf surface."], "stems": ["In the 'Kresek' phase, systemic infection causes the entire tiller to wilt and die, resembling drought stress."], "fruit": [], "roots": [], "whole_plant": ["Infected fields may appear blighted or scorched from a distance.", "Young seedlings infected with the 'Kresek' strain wilt completely and die.", "Panicles of severely infected plants may be sterile or have partially filled grains."], "signs_microscopic_or_visible": ["Visible milky bacterial ooze on lesions.", "Dried, yellowish, bead-like bacterial exudate on leaf surfaces."]}, "lookalikes": [{"condition_name": "leaf scald", "condition_id": "rice.disease_fungal.leaf_scald", "key_differences": ["Leaf scald lesions have a distinct zonate or chevron pattern with alternating light and dark brown bands; BLB lesions are uniformly straw-colored with wavy margins.", "Leaf scald lesions are typically grayish-green to tan with a dark brown border; BLB lesions lack this distinct border.", "Bacterial ooze is a key sign of BLB in humid conditions and is absent in leaf scald."]}, {"condition_name": "narrow brown leaf spot", "condition_id": "rice.disease_fungal.narrow_brown_leaf_spot", "key_differences": ["Narrow brown leaf spot causes short, linear, reddish-brown lesions parallel to the veins; BLB lesions are much wider, longer, and straw-colored.", "BLB lesions start at the leaf margin or tip and have wavy edges; narrow brown leaf spots can appear anywhere on the blade and have straight edges.", "BLB can cause entire leaves to blight and wilt; narrow brown leaf spot typically remains as small, discrete lesions."]}, {"condition_name": "tungro", "condition_id": "rice.disease_viral.tungro", "key_differences": ["Tungro causes a general yellow to orange-yellow discoloration, often starting from the leaf tip, without distinct water-soaked lesions or wavy margins.", "Tungro-infected plants are severely stunted, which is the primary symptom; stunting in BLB is secondary to severe leaf damage.", "Bacterial ooze is absent in Tungro."]}], "management": {"cultural": ["Planting of resistant or tolerant rice varieties.", "Balanced nutrient management, especially avoiding excessive nitrogen.", "Proper water management to avoid prolonged flooding.", "Removal of weed hosts and infected crop debris after harvest.", "Maintaining optimal plant spacing to promote air circulation."], "biological": ["Use of antagonistic bacteria like Pseudomonas fluorescens is under research but not widely practiced."], "chemical": ["Application of copper-based bactericides can offer some protection but is often not economically viable for field crops.", "Use of antibiotics is restricted in many regions due to resistance concerns."], "notes": "An integrated approach combining resistant varieties and sound cultural practices is the most effective and sustainable management strategy."}, "qa_seeds": {"verification_templates": ["Does this leaf show large, straw-colored lesions with wavy margins?", "Is there evidence of bacterial ooze or dried yellow beads on the leaf surface?", "Are the symptoms starting from the leaf tip or edge?", "Does this image show water-soaked streaks along the leaf margin?", "Is the entire leaf or tiller showing signs of wilting and drying out?"], "attribute_templates": ["What color are the lesions on this rice leaf?", "Describe the shape of the lesion borders.", "Where on the leaf blade are the symptoms most prominent?", "What is the overall appearance of the affected plant?", "Are the lesions small and discrete or large and coalescing?", "Can you identify any signs of the pathogen, like exudate?"], "diagnosis_templates": ["Based on the wavy-margined, straw-colored lesions and bacterial ooze, what is the likely disease?", "What rice disease is characterized by large blighted areas starting from the leaf tips?", "The complete wilting of this young rice plant, known as 'Kresek', is a severe symptom of which disease?"], "counterfactual_templates": ["If these lesions had a zonate, chevron-like pattern, what disease would it be instead of bacterial leaf blight?", "What visual features would you expect if this were narrow brown leaf spot?", "If the main symptom was severe stunting and orange-yellow discoloration without lesions, what would be the diagnosis?"], "severity_templates": ["Based on the visible symptoms, what percentage of this leaf's area is affected?", "How would you classify the severity of this bacterial leaf blight infection: mild, moderate, or severe?", "Is the damage severe enough to cause the entire leaf to die?"], "confounders": ["leaf_scald", "narrow_brown_leaf_spot", "tungro", "leaf_blast"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Use diffuse, even lighting. Avoid harsh shadows or overexposure, which can hide key features like water-soaking or dried exudate.", "occlusion_notes": "The symptomatic leaf, particularly the lesion margins and tip, should be clearly visible and not obstructed by other leaves or background clutter."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "N/A", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["APS Compendium of Rice Diseases", "IRRI Rice Knowledge Bank", "University extension plant pathology guides"]}}
+{"schema_version": "1.0.0", "disease_id": "rice.disease_fungal.brown_spot", "aliases": ["Helminthosporium leaf spot", "sesame leaf spot"], "crop": {"common_name": "Rice", "scientific_name": "Oryza sativa", "family": "Poaceae"}, "condition": {"common_name": "Brown Spot", "scientific_name": "Cochliobolus miyabeanus", "alt_names": ["Helminthosporium leaf spot", "Sesame leaf spot", "Bipolaris oryzae (anamorph)"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Pleosporales", "family": "Pleosporaceae", "genus": "Cochliobolus", "species": "miyabeanus"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["Wind-borne conidia", "Rain splash", "Infected seed"], "overwintering": ["Infected seeds", "Infected crop debris (stubble, straw)", "Collateral weed hosts"]}, "environmental_risk": {"risk_factors": ["High relative humidity (>80%)", "Nutrient deficient soils (especially potassium, silicon, or manganese)", "Water stress (drought or flood conditions)", "Poorly drained or saline soils", "Temperatures between 20-30°C"], "temp_c_day": [25, 30], "temp_c_night": [20, 25], "relative_humidity_pct": [80, 100], "leaf_wetness_hours_threshold": 8}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-5% of leaf area affected. Lesions are small, scattered, and do not coalesce.", "moderate": "6-25% of leaf area affected. Lesions are more numerous, some may be coalescing, and slight yellowing of the leaf is visible.", "severe": ">25% of leaf area affected. Lesions are large, numerous, and coalescing, leading to significant leaf yellowing, browning, and necrosis (blighting).", "notes": "Severity is assessed on the upper, most affected leaves. This rubric can also be applied to glumes during the grain-filling stage."}, "symptoms": {"leaves": ["Small, circular to oval spots, initially yellowish-brown.", "Mature spots are typically 2-10 mm long, oval-shaped with a grayish or whitish center.", "A distinct reddish-brown to dark brown halo or border surrounds the gray center.", "Lesions resemble sesame seeds in shape and color.", "Under severe infection, spots coalesce, causing the entire leaf to yellow, wither, and die.", "Lesions are distributed randomly across the leaf blade."], "stems": ["Dark brown or black lesions may appear on the leaf sheaths and collar."], "fruit": ["Small, black or dark brown spots on the glumes (hull).", "Infection can lead to partially filled or discolored grains ('pecky rice')."], "roots": ["Root system can be weakened due to overall plant stress, but direct symptoms are rare."], "whole_plant": ["Stunted growth and reduced tillering in severe cases, especially from seedling infection."], "signs_microscopic_or_visible": ["Under high humidity, a velvety, dark olive-green to black fungal growth (conidia and conidiophores) may be visible in the center of lesions."]}, "lookalikes": [{"condition_name": "Blast", "condition_id": "rice.disease_fungal.blast", "key_differences": ["Blast lesions are typically diamond or spindle-shaped with pointed ends, not oval like brown spot.", "The border of a blast lesion is often grayish or necrotic, not the distinct dark reddish-brown halo of brown spot.", "Blast often causes a 'neck rot' symptom at the panicle base, which is more severe and common than with brown spot."]}, {"condition_name": "Narrow Brown Leaf Spot", "condition_id": "rice.disease_fungal.narrow_brown_leaf_spot", "key_differences": ["Lesions are short, linear, and narrow, running parallel to the leaf veins, unlike the oval shape of brown spot.", "Lesions are uniformly light to reddish-brown and lack the distinct gray center and dark halo of mature brown spot.", "Lesions do not typically grow as wide as brown spot lesions."]}, {"condition_name": "Bacterial Leaf Blight", "condition_id": "rice.disease_bacterial.bacterial_leaf_blight", "key_differences": ["Bacterial blight creates wavy-edged, water-soaked streaks that turn yellow or white, not discrete oval spots.", "Blight symptoms often start at the leaf tip or margins and progress downwards, unlike the scattered spots of brown spot.", "Tiny amber-colored droplets of bacterial ooze may be visible on blight lesions in the morning, which is absent in brown spot."]}], "management": {"cultural": ["Use certified disease-free seeds.", "Maintain balanced soil fertility, especially adequate potassium (K).", "Manage water to avoid drought or flooding stress.", "Remove and destroy infected crop debris and weed hosts post-harvest.", "Plant resistant or tolerant varieties where available."], "biological": ["Application of Trichoderma or Pseudomonas fluorescens-based bio-fungicides can suppress the pathogen."], "chemical": ["Seed treatment with fungicides (e.g., thiram, iprodione) to reduce primary inoculum.", "Foliar application of protective or systemic fungicides like propiconazole, azoxystrobin, or mancozeb."], "notes": "Fungicide application is most effective when applied preventatively or at the first sign of disease, guided by scouting and favorable weather forecasts."}, "qa_seeds": {"verification_templates": ["Is there evidence of brown spot on this rice leaf?", "Can you confirm the presence of oval-shaped lesions with gray centers?", "Does this image show symptoms of Cochliobolus miyabeanus infection?", "Are the spots on the leaf consistent with brown spot disease?", "Is the leaf in the image affected by brown spot?"], "attribute_templates": ["What shape are the spots on the leaf?", "What color is the center of the mature lesions?", "Describe the border of the spots.", "Are the lesions coalescing?", "Do the lesions on this leaf have a distinct halo?", "Do the spots resemble sesame seeds?"], "diagnosis_templates": ["Based on the oval spots with gray centers and dark brown halos, what disease is affecting this rice plant?", "What fungal disease causes sesame seed-like spots on rice leaves?", "Given the symptoms, what is the likely diagnosis for this plant?"], "counterfactual_templates": ["If the lesions were diamond-shaped with pointed ends, what disease would it be instead?", "If the symptoms were long, narrow, brown streaks parallel to the veins, what would be the diagnosis?"], "severity_templates": ["How severe is the brown spot infection on this leaf?", "What percentage of the leaf area is covered by lesions?", "Would you classify the disease severity as mild, moderate, or severe?"], "confounders": ["blast", "narrow_brown_leaf_spot", "bacterial_leaf_blight"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse lighting is preferred. Avoid harsh shadows or direct sunlight that can obscure lesion color, texture, and halos.", "occlusion_notes": "The primary symptomatic leaf should be mostly free of occlusion from other leaves, water droplets, or debris."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "N/A", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["APS Compendium of Rice Diseases", "University Extension Plant Pathology Guides", "IRRI Rice Knowledge Bank"]}}
+{"schema_version": "1.0.0", "disease_id": "rice.healthy.healthy", "aliases": ["normal rice", "unaffected rice", "healthy plant"], "crop": {"common_name": "Rice", "scientific_name": "Oryza sativa", "family": "Poaceae"}, "condition": {"common_name": "Healthy", "scientific_name": null, "alt_names": [], "pathogen": {"type": "non-pathogenic", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "healthy", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Optimal growing conditions", "Adequate water and nutrient supply", "Absence of pathogen pressure", "Good field sanitation"], "temp_c_day": [25, 32], "temp_c_night": [20, 25], "relative_humidity_pct": [70, 90], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "0% of leaf or plant area shows any symptoms of stress, discoloration, or damage.", "moderate": "Not applicable for a healthy plant.", "severe": "Not applicable for a healthy plant.", "notes": "Severity for a healthy plant is defined as the absence of symptoms. Any presence of symptoms would change the diagnosis to a disorder or disease."}, "symptoms": {"leaves": ["Leaves are uniformly green, varying from light to dark green depending on variety and nitrogen status.", "Leaf blades are fully expanded, turgid, and typically erect or gently arching.", "Absence of spots, lesions, streaks, or pustules.", "Leaf margins and tips are intact and show no signs of necrosis or yellowing.", "No signs of insect feeding, such as holes, skeletonization, or mines."], "stems": ["Stems (culms) are upright, strong, and have a healthy green or straw color.", "Nodes and internodes are free of discoloration or lesions.", "Sheaths are wrapped tightly around the culm and are free of spots or blight."], "fruit": ["Panicles (if present) are well-developed and drooping when grains are filled.", "Grains (spikelets) are uniform in color and size, without spots, discoloration, or fungal growth."], "roots": ["Root system is well-developed, with numerous white or light-tan, healthy-looking roots."], "whole_plant": ["Plant exhibits vigorous, uniform growth according to its developmental stage.", "Tillering is active and appropriate for the variety and planting density."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "bacterial_leaf_blight", "condition_id": "rice.bacterial.bacterial_leaf_blight", "key_differences": ["Healthy leaves have uniform green color, while BLB shows wavy-edged, water-soaked, yellow-to-white lesions starting from leaf tips or margins.", "Healthy plants lack bacterial ooze, which can be seen as milky or yellowish droplets on BLB lesions in the morning.", "The overall plant vigor is high in healthy plants, whereas severe BLB can cause wilting and plant death ('kresek' phase)."]}, {"condition_name": "brown_spot", "condition_id": "rice.fungal.brown_spot", "key_differences": ["Healthy leaves are completely free of spots.", "Brown spot is characterized by distinct, small, oval-to-circular lesions with a grayish center and a dark brown margin.", "Healthy grains are clean, whereas brown spot can infect grains, causing dark spots or discoloration ('pecky rice')."]}, {"condition_name": "leaf_scald", "condition_id": "rice.fungal.leaf_scald", "key_differences": ["Healthy leaves have intact, green tips.", "Leaf scald presents as large, oblong or lens-shaped lesions starting from the leaf tip or margin, with alternating zones of light tan and dark brown, creating a 'chevron' or 'V' pattern.", "Healthy leaves lack the water-soaked appearance at the lesion edge that is characteristic of active leaf scald."]}], "management": {"cultural": ["Use certified, disease-free seed of resistant varieties.", "Maintain balanced soil fertility, especially appropriate nitrogen levels.", "Ensure proper water management to avoid both drought and waterlogging stress.", "Practice good field sanitation, including removal of weed hosts and crop residues."], "biological": [], "chemical": [], "notes": "Management for 'healthy' involves proactive, preventative measures and maintaining optimal growing conditions to prevent the onset of diseases and disorders."}, "qa_seeds": {"verification_templates": ["Is this rice plant healthy?", "Does this plant exhibit any signs of disease or stress?", "Are the leaves of this plant free from spots and discoloration?", "Can you confirm the condition of this plant is normal?", "Is this an example of a healthy rice plant?"], "attribute_templates": ["What is the color of the leaves?", "Are the leaves uniformly green?", "Are there any lesions, spots, or streaks visible on the leaf blades?", "Describe the posture of the plant.", "Are the stems upright and strong?", "Do the leaf tips or margins show any signs of yellowing or browning?"], "diagnosis_templates": ["What is the condition of this rice plant?", "Diagnose the health status of the rice in the image.", "Is there anything wrong with this plant? If not, what is its state?"], "counterfactual_templates": ["If this plant had long, wavy, yellow lesions starting from the leaf tips, what disease would it be?", "What would the leaves look like if this plant were infected with brown spot disease?", "If the plant was showing V-shaped lesions at the leaf tips, what would be the likely diagnosis?"], "severity_templates": ["What percentage of the plant is affected by symptoms?", "How would you rate the health of this plant on a scale from healthy to severe?", "Based on the visual evidence, what is the severity of the condition?"], "confounders": ["bacterial_leaf_blight", "brown_spot", "nitrogen_deficiency", "herbicide_injury"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Requires diffuse, even lighting. Avoid hard shadows, overexposure, and underexposure that could obscure color or texture details.", "occlusion_notes": "The primary leaves and stems of the subject plant should be clearly visible and not significantly occluded by other plants or objects."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["General plant pathology compendia (e.g., APS Press)", "University extension guides for rice cultivation", "International Rice Research Institute (IRRI) resources"]}}
+{"schema_version": "1.0.0", "disease_id": "rice.unknown.pest_damage", "aliases": ["Insect damage on rice", "Rice pest feeding injury", "Arthropod damage on rice"], "crop": {"common_name": "Rice", "scientific_name": "Oryza sativa", "family": "Poaceae"}, "condition": {"common_name": "Pest Damage", "scientific_name": "", "alt_names": ["Insect feeding", "Chewing damage", "Sucking damage", "Boring damage"], "pathogen": {"type": "INSECT", "taxonomy": {"kingdom": "Animalia", "phylum": "Arthropoda", "class": "Insecta", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "unknown", "transmission": {"vectors": ["Adult insects (flight)"], "dispersal": ["Wind", "Water (irrigation)", "Contaminated equipment", "Human activity"], "overwintering": ["Crop residue", "Weed hosts", "Soil", "Stubble"]}, "environmental_risk": {"risk_factors": ["Warm, humid conditions", "Monoculture planting", "Presence of alternate weed hosts", "High nitrogen fertilizer application", "Staggered planting dates in a region"], "temp_c_day": [25, 35], "temp_c_night": [20, 25], "relative_humidity_pct": [70, 90], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area shows signs of feeding (chewing, scraping, stippling).", "moderate": "11-40% of leaf area is affected; some leaves may be skeletonized or rolled.", "severe": ">40% of leaf area is affected; significant defoliation, or presence of 'deadhearts' or 'whiteheads'.", "notes": "Severity is estimated based on the total visible leaf area damaged by pest activity. For systemic damage like deadhearts, consider the percentage of affected tillers in the plant or image frame."}, "symptoms": {"leaves": ["Irregular holes or chewed margins on leaf blades.", "White, parallel feeding streaks or scrapes on the leaf surface.", "Leaves folded or rolled longitudinally, often held together by silk.", "Skeletonized leaves where only the midrib and veins remain.", "Small, yellowish or white spots (stippling) from sucking insects.", "Presence of frass (insect excrement) on leaf surfaces."], "stems": ["Boreholes visible on the stem or at nodes.", "Central shoot (tiller) is dead and dry, and can be pulled out easily ('deadheart').", "Wilting or lodging of tillers."], "fruit": ["Panicle fails to emerge or emerges empty and white ('whitehead').", "Damaged, discolored, or partially filled grains."], "roots": [], "whole_plant": ["Stunted growth or reduced plant vigor.", "Widespread yellowing and drying of plants, known as 'hopperburn'."], "signs_microscopic_or_visible": ["Visible insects (larvae, pupae, or adults) on leaves or stems.", "Webbing or silk on or between leaves.", "Egg masses on leaf surfaces."]}, "lookalikes": [{"condition_name": "Bacterial Leaf Blight", "condition_id": "rice.disease.bacterial_leaf_blight", "key_differences": ["Bacterial blight lesions are wavy-margined, water-soaked streaks starting from leaf tips/margins, whereas pest damage is typically discrete holes, scrapes, or stippling.", "Bacterial blight can produce milky or yellowish bacterial ooze in early mornings, which is absent in pest damage.", "Pest damage may be accompanied by visible signs of the insect (frass, webbing, larvae), which are absent in bacterial blight."]}, {"condition_name": "Leaf Scald", "condition_id": "rice.disease.leaf_scald", "key_differences": ["Leaf scald causes distinct zonate or chevron-shaped lesions with alternating light and dark brown bands, typically starting from the leaf tip.", "Pest damage is more irregular (holes, scrapes) and lacks the characteristic banding pattern of leaf scald.", "Leaf scald lesions often have a prominent yellowish halo, which is less common in direct feeding injury from pests."]}], "management": {"cultural": ["Synchronous planting across a region to break pest life cycles.", "Removal of weed hosts from fields and surrounding bunds.", "Proper water and nutrient management to promote plant vigor.", "Use of resistant or tolerant rice varieties."], "biological": ["Conservation and encouragement of natural enemies like spiders, predatory beetles, and parasitoid wasps.", "Application of biopesticides such as Bacillus thuringiensis (Bt) or entomopathogenic fungi."], "chemical": ["Application of appropriate insecticides based on scouting and established economic thresholds (ETL).", "Use of seed treatments to protect young seedlings from early-season pests.", "Rotation of insecticide modes of action to prevent or delay resistance."], "notes": "Integrated Pest Management (IPM) is the recommended approach, combining multiple tactics for sustainable and effective control while minimizing environmental impact."}, "qa_seeds": {"verification_templates": ["Is there evidence of insect feeding on the leaves?", "Can you see any chewed holes or scraped areas on the plant?", "Does this rice plant show signs of pest damage?", "Are there any visible insects, larvae, or webbing on the leaves?", "Is the leaf blade skeletonized or rolled?"], "attribute_templates": ["What type of damage is visible on the leaf: chewing, scraping, or stippling?", "Describe the shape of the damage on the leaf.", "Is the damage located on the leaf margin, tip, or blade?", "Is there any frass or webbing present?", "Are the leaves folded or stuck together?", "What color are the feeding marks?"], "diagnosis_templates": ["What is the primary issue affecting this rice plant?", "Based on the feeding marks, is this plant suffering from pest damage?", "Can you diagnose the problem with this rice leaf?"], "counterfactual_templates": ["If the damage consisted of zonate bands starting from the tip, would it still be generic pest damage?", "If the lesions were water-soaked and had wavy margins, could this be pest damage?"], "severity_templates": ["How severe is the pest damage on a scale of mild, moderate, or severe?", "What percentage of the leaf area is affected by feeding?", "Would you classify the level of defoliation as mild or severe?"], "confounders": ["bacterial_leaf_blight", "leaf_scald", "narrow_brown_leaf_spot"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Diffuse, even lighting is preferred. Avoid harsh shadows or direct sunlight that can obscure fine details like stippling, webbing, or small insects.", "occlusion_notes": "Ensure the primary symptoms (e.g., chewed areas, rolled leaves) are not obscured by other leaves or debris. Capture the damage in clear focus."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["Rice extension and pest management guides", "Compendium of Rice Diseases and Pests, APS Press", "International Rice Research Institute (IRRI) Rice Knowledge Bank"]}}
+{"schema_version": "1.0.0", "disease_id": "rice.unknown.leaf_scald", "aliases": ["scald", "leaf tip scald", "rice leaf scald"], "crop": {"common_name": "rice", "scientific_name": "Oryza sativa", "family": "Poaceae"}, "condition": {"common_name": "leaf scald", "scientific_name": "Microdochium oryzae", "alt_names": ["Monographella albescens", "Rhynchosporium oryzae"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Capnodiales", "family": "Mycosphaerellaceae", "genus": "Microdochium", "species": "oryzae"}}}, "issue_type": "unknown", "transmission": {"vectors": [], "dispersal": ["wind-borne conidia", "rain splash", "infected seeds", "infected crop debris"], "overwintering": ["infected seeds", "infected stubble", "crop residue", "weedy hosts"]}, "environmental_risk": {"risk_factors": ["high nitrogen fertilization", "frequent rainfall", "high humidity", "dense plant canopy", "cool temperatures during flowering"], "temp_c_day": [25, 28], "temp_c_night": [], "relative_humidity_pct": [95, 100], "leaf_wetness_hours_threshold": 10}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "<5% of the upper leaf area affected, with lesions mostly confined to the leaf tips.", "moderate": "5-25% of the upper leaf area affected, with lesions expanding downwards showing characteristic zonation patterns.", "severe": ">25% of the upper leaf area affected, multiple leaves show extensive blighting, and leaf tips are necrotic and dry.", "notes": "Severity is best assessed on the flag leaf and the two leaves below it during flowering to grain-filling stages. Focus on the percentage of total leaf area showing symptoms."}, "symptoms": {"leaves": ["Lesions initiate as grey-green, water-soaked spots near the leaf tip or along the margins.", "Lesions enlarge into a characteristic chevron (V-shape) pattern.", "Developed lesions show alternating bands of light tan and dark brown, creating a zonation or 'scalded' look.", "A diffuse, yellowish halo often surrounds the advancing edge of the lesion.", "Multiple lesions can coalesce, causing the entire leaf blade to wither and die from the tip downwards.", "Symptoms are most prominent on mature, upper leaves.", "Infected leaves eventually turn grayish-brown and dry out completely."], "stems": ["Typically asymptomatic, but leaf sheaths can be affected in severe cases."], "fruit": ["Infection can spread to the panicle, causing discoloration of glumes, poor grain filling, and sterility."], "roots": [], "whole_plant": ["Severe infections reduce photosynthetic area, leading to decreased plant vigor and lower yields."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "bacterial_leaf_blight", "condition_id": "rice.disease_bacterial.bacterial_leaf_blight", "key_differences": ["Bacterial blight lesions have wavy, undulating margins, unlike the more distinct zonation or V-shape of leaf scald.", "Bacterial blight produces yellow, water-soaked stripes parallel to veins, which is not a feature of scald.", "In high humidity, creamy bacterial ooze may be visible on bacterial blight lesions, which is absent in fungal scald."]}, {"condition_name": "blast", "condition_id": "rice.disease_fungal.blast", "key_differences": ["Leaf blast lesions are typically diamond-shaped or spindle-shaped with grey centers and dark brown borders.", "Leaf scald lesions start at the leaf tip/margin and expand downwards in a banded, chevron pattern, not as discrete diamond shapes.", "Blast can also infect the stem nodes ('node blast') and panicle base ('neck blast'), symptoms not caused by leaf scald."]}], "management": {"cultural": ["Plant certified disease-free seeds.", "Apply balanced nitrogen fertilizer; avoid excessive rates.", "Remove and destroy infected crop debris after harvest.", "Ensure proper plant spacing to promote air circulation and reduce humidity within the canopy.", "Control alternate weed hosts in and around the field."], "biological": ["Research has shown potential for some strains of Trichoderma and Pseudomonas fluorescens as biocontrol agents."], "chemical": ["Apply foliar fungicides (e.g., propiconazole, azoxystrobin, trifloxystrobin) at the first sign of disease.", "Seed treatment with appropriate fungicides can reduce primary inoculum."], "notes": "Fungicide application is most effective when timed preventatively or at the early onset of disease, particularly during the booting and heading stages of the crop."}, "qa_seeds": {"verification_templates": ["Does the rice leaf show a V-shaped lesion starting from the tip?", "Are there alternating light and dark brown bands on the leaf lesion?", "Does the leaf look like its tip has been scalded or burnt?", "Are the symptoms mainly on the upper, more mature leaves?", "Is the leaf dying back from the tip downwards?"], "attribute_templates": ["What is the shape of the lesion on the leaf?", "Describe the color and pattern of the spots on the leaves.", "Where on the leaf did the symptoms start?", "Is there a yellow halo around the lesion?", "How much of the leaf area is covered by the lesions?"], "diagnosis_templates": ["Based on the V-shaped, banded lesions at the leaf tips, what disease is this?", "What is the likely cause of the scalded appearance on these rice leaves?", "The rice leaves have zonate patterns expanding from the margins. What is the diagnosis?"], "counterfactual_templates": ["If the lesions were diamond-shaped with grey centers, what disease would it be instead of leaf scald?", "If the leaf margins were wavy and yellow with bacterial ooze, what would be the diagnosis?"], "severity_templates": ["What percentage of the flag leaf is affected by the scald-like lesions?", "Based on the extent of leaf blighting, would you classify this leaf scald infection as mild, moderate, or severe?"], "confounders": ["bacterial_leaf_blight", "blast", "pest_damage"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.2, "lighting_notes": "Use even, diffuse lighting. Avoid direct sunlight and harsh shadows which can obscure the zonation pattern and colors of the lesions.", "occlusion_notes": "The symptomatic leaf, especially the tip and margins where the lesion originates, must be clearly visible and not blocked by other leaves."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "N/A", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["Rice extension guides from agricultural universities", "APS Compendium of Rice Diseases", "CABI Crop Protection Compendium", "IRRI Rice Knowledge Bank"]}}
+{"schema_version": "1.0.0", "disease_id": "rice.disease_fungal.narrow_brown_leaf_spot", "aliases": ["Cercospora leaf spot", "Narrow brown spot"], "crop": {"common_name": "rice", "scientific_name": "Oryza sativa", "family": "Poaceae"}, "condition": {"common_name": "narrow brown leaf spot", "scientific_name": "Cercospora janseana", "alt_names": ["Cercospora leaf spot"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Capnodiales", "family": "Mycosphaerellaceae", "genus": "Cercospora", "species": "janseana"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["wind-borne conidia", "rain splash", "infected seeds"], "overwintering": ["infected crop debris (stubble, straw)", "infected seeds", "weedy hosts"]}, "environmental_risk": {"risk_factors": ["high humidity", "potassium deficiency", "high nitrogen fertilization", "susceptible cultivars", "late-planted crops"], "temp_c_day": [25, 30], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 10}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "< 5% of flag leaf area affected, lesions are discrete.", "moderate": "5-25% of flag leaf area affected, some lesions may begin to coalesce.", "severe": "> 25% of flag leaf area affected, significant lesion coalescence causing premature leaf browning and senescence.", "notes": "Severity is best assessed on the upper leaves (especially the flag leaf) during the grain-filling stage, as this has the most significant impact on yield."}, "symptoms": {"leaves": ["Short, linear, reddish-brown to dark brown lesions.", "Lesions are typically narrow, about 1-2 mm wide and 2-10 mm long.", "Lesions are oriented parallel to the leaf veins, appearing as fine streaks.", "Symptoms are more prominent on mature, older leaves but can occur on flag leaves late in the season.", "In severe infections, lesions can merge (coalesce), leading to widespread browning and death of the leaf.", "Lesions generally lack a distinct yellow halo, distinguishing them from brown spot.", "The color of the lesions is relatively uniform, without a gray center."], "stems": ["Lesions can appear on the leaf sheaths, similar in appearance to those on the leaf blades."], "fruit": ["Small, brown, necrotic spots can develop on the glumes and panicle branches."], "roots": [], "whole_plant": ["In highly susceptible varieties, severe infections can cause premature ripening and reduced grain weight and quality."], "signs_microscopic_or_visible": ["Under very high humidity, a hand lens may reveal sparse, grayish fungal growth (conidiophores and conidia) on the surface of older lesions."]}, "lookalikes": [{"condition_name": "brown_spot", "condition_id": "rice.disease_fungal.brown_spot", "key_differences": ["Lesion Shape: Brown spot lesions are distinctly oval or circular, not long and linear.", "Lesion Center: Mature brown spot lesions often have a gray or whitish center, which is absent in narrow brown leaf spot.", "Halo: Brown spot lesions are typically surrounded by a prominent yellow halo.", "Size: Brown spot lesions are generally wider than the narrow, streak-like lesions of narrow brown spot."]}, {"condition_name": "blast", "condition_id": "rice.disease_fungal.blast", "key_differences": ["Lesion Shape: Leaf blast lesions are characteristically diamond-shaped or spindle-shaped (wider in the middle, pointed at both ends).", "Lesion Center: Blast lesions have a distinct grayish or whitish center.", "Lesion Border: Blast lesions have a dark brown or reddish-brown border, creating a more defined pattern than the uniform streak of narrow brown spot."]}, {"condition_name": "bacterial_leaf_blight", "condition_id": "rice.disease_bacterial.bacterial_leaf_blight", "key_differences": ["Symptom Progression: Bacterial blight typically starts at the leaf tip or margins and progresses downwards in large, wavy, water-soaked streaks.", "Lesion Appearance: Blight lesions are initially grayish-green and water-soaked, later turning yellow or straw-colored, not discrete brown lines.", "Bacterial Ooze: In the morning, small, milky or yellowish droplets of bacterial ooze may be visible on the surface of blight lesions."]}], "management": {"cultural": ["Plant resistant or tolerant rice varieties.", "Ensure balanced soil fertility, particularly adequate potassium (K) levels.", "Remove or plow under infected crop residue to reduce primary inoculum.", "Maintain appropriate plant density to ensure good air circulation."], "biological": ["No widely adopted commercial biological control agents are currently available for this specific disease."], "chemical": ["Foliar application of fungicides can be effective, especially during the booting to heading stages.", "Commonly used fungicide classes include strobilurins, triazoles, and dithiocarbamates (e.g., mancozeb)."], "notes": "Chemical control is usually only economically justified on susceptible varieties under disease-favorable conditions, with applications timed to protect the flag leaf."}, "qa_seeds": {"verification_templates": ["Does this image show symptoms of narrow brown leaf spot on the rice leaf?", "Are there short, linear, brown lesions present?", "Can you confirm the presence of narrow, brown streaks running parallel to the leaf veins?", "Is this rice leaf affected by Cercospora leaf spot?", "Verify that the symptoms shown are consistent with narrow brown leaf spot."], "attribute_templates": ["What is the shape of the lesions on the leaf?", "What color are the spots?", "Are the lesions oriented parallel to the leaf's veins?", "Do the lesions have a gray center or a yellow halo?", "Describe the distribution of the lesions on the leaf blade."], "diagnosis_templates": ["Based on the narrow, linear, brown lesions that lack a halo, what disease is this?", "What is the most likely cause of the brown streaks on this rice leaf?", "Is this narrow brown leaf spot, brown spot, or leaf blast?"], "counterfactual_templates": ["If the lesions were diamond-shaped with gray centers, would it still be narrow brown leaf spot?", "If the spots were circular and had a bright yellow halo, what disease would you suspect instead?"], "severity_templates": ["What percentage of this leaf's surface area is affected by the lesions?", "How would you classify the severity of this infection: mild, moderate, or severe?", "Are the lesions discrete or are they coalescing?"], "confounders": ["brown_spot", "blast", "bacterial_leaf_blight"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Use even, diffuse lighting. Avoid harsh shadows or overexposure which can wash out the color and texture of the lesions.", "occlusion_notes": "The symptomatic portion of the leaf should be in focus and not obscured by other leaves, water droplets, or debris."}, "provenance": {"created_by": "AI Plant Pathologist", "reviewed_by": "VQA Dataset Designer", "created_at": "2024-05-21T10:00:00Z", "updated_at": "2024-05-21T10:00:00Z", "sources": ["APS Compendium of Rice Diseases", "Rice extension guides from agricultural universities", "CABI Crop Protection Compendium", "International Rice Research Institute (IRRI) resources"]}}
+{"schema_version": "1.0.0", "disease_id": "rice.unknown.blast", "aliases": ["Rice rotten neck", "Pyricularia blight"], "crop": {"common_name": "rice", "scientific_name": "Oryza sativa", "family": "Poaceae"}, "condition": {"common_name": "blast", "scientific_name": "Magnaporthe oryzae", "alt_names": ["Rice blast fungus", "Pyricularia oryzae"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Sordariomycetes", "order": "Magnaporthales", "family": "Magnaporthaceae", "genus": "Magnaporthe", "species": "oryzae"}}}, "issue_type": "unknown", "transmission": {"vectors": [], "dispersal": ["Wind-borne conidia", "Rain splash", "Infected seed"], "overwintering": ["Infected crop debris (straw, stubble)", "Infected seeds", "Alternate hosts (weedy grasses)"]}, "environmental_risk": {"risk_factors": ["High nitrogen fertilization", "Susceptible cultivars", "High plant density", "Periods of cool, humid weather", "Drought stress followed by rain"], "temp_c_day": [25, 28], "temp_c_night": [20, 22], "relative_humidity_pct": [90, 100], "leaf_wetness_hours_threshold": 9}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "< 5% of leaf area affected with typical lesions.", "moderate": "5-25% of leaf area affected; some lesions may be coalescing.", "severe": "> 25% of leaf area affected, or any presence of neck/panicle infection.", "notes": "Assessment focuses on upper, photosynthetically active leaves. Neck and panicle blast are automatically considered severe due to their direct impact on yield."}, "symptoms": {"leaves": ["Initial small, water-soaked, grayish-green specks.", "Lesions expand into characteristic diamond-shaped or spindle-shaped spots.", "Mature lesions have a grayish or whitish center.", "Lesions are surrounded by a distinct dark brown or reddish-brown border.", "Multiple lesions can coalesce, causing the entire leaf to blight or die.", "Lesions are typically wider in the center and pointed at both ends."], "stems": ["Grayish-brown lesions at the neck node, just below the panicle ('neck blast').", "Infected neck turns black and shrivels, often causing the panicle to break and hang down.", "The tissue above the neck lesion dies, a symptom known as 'rotten neck'."], "fruit": ["Infection of panicle branches ('panicle blast') causes them to turn dark brown to black.", "Spikelets on infected branches are sterile or produce partially filled, chalky grains.", "Infected grains may have small brown to black spots."], "roots": [], "whole_plant": ["Severe infections can lead to lodging (stem breakage at infected nodes)."], "signs_microscopic_or_visible": ["Under high humidity, a fuzzy, gray mold (conidia and conidiophores) may be visible in the center of lesions."]}, "lookalikes": [{"condition_name": "brown_spot", "condition_id": "rice.disease_fungal.brown_spot", "key_differences": ["Lesions are circular or oval, not diamond-shaped like blast.", "Lesions are more uniformly dark brown and lack the distinct gray center of mature blast lesions.", "Brown spot lesions often have a prominent yellow halo, which is less common in blast."]}, {"condition_name": "narrow_brown_leaf_spot", "condition_id": "rice.disease_fungal.narrow_brown_leaf_spot", "key_differences": ["Lesions are long, narrow, and linear, running parallel to leaf veins, unlike the wide, diamond shape of blast.", "Lesions are uniformly light to reddish-brown and do not develop a gray center.", "Lesions are significantly shorter in width compared to blast lesions."]}, {"condition_name": "bacterial_leaf_blight", "condition_id": "rice.disease_bacterial.bacterial_leaf_blight", "key_differences": ["Symptoms are wavy-margined, water-soaked streaks starting from the leaf tip or margins, not discrete spots.", "Bacterial blight often produces yellowish, milky, or amber-colored bacterial ooze droplets, which are absent in blast.", "Dried lesions are grayish-white or straw-colored without the distinct, dark brown border typical of blast."]}], "management": {"cultural": ["Plant resistant cultivars.", "Avoid excessive nitrogen fertilizer application.", "Maintain proper water management, avoiding periods of drought stress.", "Remove and destroy infected crop residue after harvest.", "Manage weed hosts in and around the field."], "biological": ["Application of bio-control agents like *Trichoderma* spp. or *Pseudomonas fluorescens*."], "chemical": ["Foliar application of protective or systemic fungicides (e.g., azoxystrobin, tricyclazole, isoprothiolane).", "Seed treatment with systemic fungicides to prevent seedling infection."], "notes": "Fungicide application timing is critical; it is most effective when applied preventatively or at the very early stages of disease, often guided by weather-based forecasting models."}, "qa_seeds": {"verification_templates": ["Does this image show a diamond-shaped lesion on a rice leaf?", "Can you confirm the presence of a rice plant with blast disease?", "Are the leaf spots in the image showing a gray center and a dark brown border?", "Is there evidence of 'rotten neck' just below the panicle?", "Are there spindle-shaped lesions on the leaves?"], "attribute_templates": ["What is the shape of the lesions on these leaves?", "What color is the center of the mature leaf spots?", "Describe the border of the leaf lesions.", "Where on the plant is the 'neck blast' symptom located?", "Are the lesions individual spots or are they merging together?", "What symptoms are visible on the panicle?"], "diagnosis_templates": ["Based on the diamond-shaped lesions with gray centers, what disease is affecting this rice?", "What condition causes 'rotten neck' and sterile panicles in rice?", "Given the spindle-shaped spots with brown borders, what is the likely diagnosis?"], "counterfactual_templates": ["If the lesions were circular and uniformly brown with a yellow halo, what disease might it be instead of blast?", "If the symptoms were long, narrow, reddish-brown stripes parallel to the veins, would this still be blast?"], "severity_templates": ["What percentage of the leaf area is covered by blast lesions?", "Based on the visible symptoms, is the blast infection mild, moderate, or severe?", "Is the neck of the plant infected, indicating a severe case of blast?"], "confounders": ["brown_spot", "narrow_brown_leaf_spot", "bacterial_leaf_blight"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Even, diffuse lighting is preferred. Avoid harsh shadows or direct sunlight that can obscure lesion color, texture, and borders.", "occlusion_notes": "The primary lesion(s) should be clearly visible and not significantly obscured by other leaves, debris, or water droplets."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["APS Compendia of Plant Diseases", "University Extension Plant Disease Guides", "IRRI Rice Knowledge Bank"]}}
+{"schema_version": "1.0.0", "disease_id": "rice.pest_insect.hispa", "aliases": ["rice hispa", "rice hispid", "spiny beetle"], "crop": {"common_name": "rice", "scientific_name": "Oryza sativa", "family": "Poaceae"}, "condition": {"common_name": "hispa", "scientific_name": "Dicladispa armigera", "alt_names": [], "pathogen": {"type": "Insect", "taxonomy": {"kingdom": "Animalia", "phylum": "Arthropoda", "class": "Insecta", "order": "Coleoptera", "family": "Chrysomelidae", "genus": "Dicladispa", "species": "armigera"}}}, "issue_type": "pest_insect", "transmission": {"vectors": [], "dispersal": ["Adult flight"], "overwintering": ["Adults overwinter in grasses on bunds and in stubble."]}, "environmental_risk": {"risk_factors": ["High humidity and intermittent rainfall", "Overcast days", "Presence of alternate grass hosts on bunds", "Excessive nitrogen fertilizer application"], "temp_c_day": [25, 32], "temp_c_night": [], "relative_humidity_pct": [80, 95], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "<10% of leaf area shows white streaks or larval mines.", "moderate": "10-30% of leaf area is damaged; some leaves may start to dry at the tips.", "severe": ">30% of leaf area is damaged; fields may appear whitish or scorched from a distance.", "notes": "Severity is assessed by estimating the percentage of the total leaf surface area covered by the characteristic white streaks from adult feeding and white blotches from larval mining. A value of 0 indicates the factor is not a primary driver for this insect pest."}, "symptoms": {"leaves": ["Presence of long, narrow, parallel white streaks on the upper leaf surface, where adults have scraped the green tissue.", "Leaves appear skeletonized between the veins.", "Presence of irregular, translucent white patches or blisters, which are mines created by larvae feeding inside the leaf.", "Leaf tips may become dry, withered, and turn brown.", "In severe infestations, entire leaves turn whitish and dry up.", "Affected fields can have a scorched or dried-up appearance from a distance."], "stems": [], "fruit": [], "roots": [], "whole_plant": ["Stunted growth in young plants due to heavy feeding pressure.", "Reduced plant vigor and tillering."], "signs_microscopic_or_visible": ["Presence of small (3-5 mm), spiny, bluish-black adult beetles on the leaves.", "Presence of small, yellowish grubs (larvae) inside the leaf mines if dissected.", "Presence of small, brown, oval pupae attached to the leaf surface, often near the base."]}, "lookalikes": [{"condition_name": "leaffolder", "condition_id": "rice.pest_insect.leaffolder", "key_differences": ["Hispa creates narrow, parallel white streaks from adult feeding; leaffolder damage is broader white patches scraped from within a folded leaf.", "Hispa larvae create mines (tunnels) within the leaf tissue; leaffolder larvae fold the leaf longitudinally and feed inside the fold.", "With hispa, the leaf remains flat; with leaffolder, the key sign is the folded or rolled leaf blade.", "The hispa adult is a small, spiny black beetle; the leaffolder adult is a yellowish-brown moth."]}, {"condition_name": "leaf_scald", "condition_id": "rice.disease.leaf_scald", "key_differences": ["Hispa damage consists of dry, white, scraped streaks; leaf scald lesions are initially water-soaked and have distinct, alternating light and dark brown bands (zonation).", "Hispa damage can occur anywhere on the leaf blade; leaf scald typically starts at the leaf tip or margins and progresses downwards.", "Hispa is caused by an insect, and the beetle may be visible; leaf scald is a fungal disease with no visible pest."]}], "management": {"cultural": ["Clipping and destroying the top portion of seedlings before transplanting to remove eggs.", "Maintaining clean bunds by removing weeds and alternate grass hosts.", "Avoiding over-application of nitrogen fertilizers.", "Flooding the nursery or field for a day to dislodge and drown adults."], "biological": ["Conservation of natural enemies like small wasps (e.g., Eulophid wasp) that parasitize larvae and pupae.", "Use of bio-pesticides based on fungi like Beauveria bassiana."], "chemical": ["Application of recommended systemic or contact insecticides when pest populations exceed economic thresholds.", "Seed treatment with appropriate insecticides in endemic areas."], "notes": "Integrated Pest Management (IPM) combining cultural, biological, and need-based chemical methods is the most effective approach."}, "qa_seeds": {"verification_templates": ["Is there evidence of scraping damage on this rice leaf?", "Can you see thin, parallel white lines on the leaf surface?", "Are there any small, spiny, dark-colored beetles present?", "Does this image show signs of rice hispa?", "Are there translucent patches or tunnels visible within the leaf tissue?"], "attribute_templates": ["What is the pattern of the white damage on the leaf?", "Describe the insect visible on the leaf.", "Are the white marks long and straight or broad and irregular?", "Is the leaf blade flat or is it folded over?", "What color are the streaks on the leaf?", "Does the damage appear dry and scraped or wet and rotted?"], "diagnosis_templates": ["Based on the parallel white streaks and the presence of a spiny beetle, what is the pest affecting this rice?", "Is the damage on this rice leaf caused by hispa or leaffolder?", "What pest causes both surface scraping and internal leaf mining on rice?"], "counterfactual_templates": ["If the leaf were folded longitudinally with scraping inside, would it still be hispa?", "If the white marks were large, blotchy lesions with wavy, water-soaked margins, could the cause be hispa?"], "severity_templates": ["How severe is the hispa damage on this leaf?", "What percentage of the leaf surface is affected by white streaks?", "Would you classify this hispa infestation as mild, moderate, or severe?"], "confounders": ["leaffolder", "leaf_scald", "bacterial_leaf_blight"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Requires diffuse, even lighting. Avoid hard shadows or direct sunlight which can cause glare on the leaf surface, obscuring the fine white streaks.", "occlusion_notes": "The characteristic streaks must be clearly visible. Occlusion by other leaves is acceptable if a sufficient portion of a damaged leaf is in focus."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["Rice Knowledge Bank (IRRI)", "University Extension Plant Pathology Guides", "Compendium of Rice Diseases and Pests, APS Press"]}}
+{"schema_version": "1.0.0", "disease_id": "rice.pest_insect.leaffolder", "aliases": ["rice leaf roller", "rice leaf tier"], "crop": {"common_name": "rice", "scientific_name": "Oryza sativa", "family": "Poaceae"}, "condition": {"common_name": "leaffolder", "scientific_name": "Cnaphalocrocis medinalis", "alt_names": ["leaf roller"], "pathogen": {"type": "insect", "taxonomy": {"kingdom": "Animalia", "phylum": "Arthropoda", "class": "Insecta", "order": "Lepidoptera", "family": "Crambidae", "genus": "Cnaphalocrocis", "species": "medinalis"}}}, "issue_type": "pest_insect", "transmission": {"vectors": ["adult moth"], "dispersal": ["Wind-assisted flight of adult moths"], "overwintering": ["Larvae or pupae in rice stubble, weeds, or volunteer rice plants"]}, "environmental_risk": {"risk_factors": ["High nitrogen fertilizer application", "High plant density or shaded conditions", "High humidity and presence of grassy weeds", "Periods of continuous rainfall"], "temp_c_day": [25, 30], "temp_c_night": [], "relative_humidity_pct": [80, 95], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area shows white, transparent streaks or folded leaves. Damage is scattered and minimal.", "moderate": "11-30% of leaf area is affected. Multiple folded leaves are visible on many tillers.", "severe": ">30% of leaf area is affected, particularly the flag leaves. The field may appear whitish or scorched from a distance.", "notes": "Severity is based on the percentage of photosynthetic area lost to larval feeding. Damage to the flag leaf during the reproductive stage is most critical for yield loss."}, "symptoms": {"leaves": ["Longitudinal folding of the leaf blade, with margins fastened by silk strands.", "Presence of white, transparent, or papery streaks running parallel to the midrib.", "Scraping of the green tissue (chlorophyll) from within the folded leaf.", "Leaf tips may appear white and dried up.", "In severe infestations, entire leaves look white and scorched.", "Presence of elongated, greenish-yellow fecal pellets inside the folded leaf."], "stems": [], "fruit": [], "roots": [], "whole_plant": ["Reduced plant vigor and stunted growth in heavy infestations.", "A severely infested field appears whitish and scorched from a distance."], "signs_microscopic_or_visible": ["A slender, yellowish-green larva (caterpillar) is visible if the folded leaf is opened.", "Small, yellowish, disc-shaped eggs laid singly or in small groups on the leaf surface.", "Brownish pupae may be found inside the folded leaves or leaf sheaths."]}, "lookalikes": [{"condition_name": "hispa", "condition_id": "rice.pest_insect.hispa", "key_differences": ["Hispa damage consists of narrow, parallel, white streaks from adult feeding, whereas leaffolder causes broader scraped patches inside a folded leaf.", "Leaffolder physically folds the leaf blade together with silk; hispa does not cause leaf folding.", "Hispa larvae are leaf miners that create tunnels or blisters within the leaf tissue, not external feeders within a fold."]}, {"condition_name": "bacterial_leaf_blight", "condition_id": "rice.disease_bacterial.bacterial_leaf_blight", "key_differences": ["Bacterial blight causes water-soaked lesions that turn yellowish-white with wavy margins, not distinct scraped streaks.", "Blight lesions often start from the leaf tip or margins and progress downwards, unlike the damage contained within a leaffolder's fold.", "The leaf is not physically folded or webbed together in bacterial blight.", "Bacterial ooze may be present on blight lesions, a sign absent in leaffolder damage."]}], "management": {"cultural": ["Avoid excessive nitrogen fertilizer application.", "Maintain wider plant spacing to decrease humidity and pest movement.", "Remove grassy weeds from bunds and fields, as they serve as alternate hosts.", "Practice synchronous planting within a region to break the pest cycle."], "biological": ["Conserve natural enemies like spiders, wasps, dragonflies, and predatory beetles.", "Apply bio-pesticides such as *Bacillus thuringiensis* (Bt) or Beauveria bassiana."], "chemical": ["Apply recommended insecticides only when the pest population exceeds the economic threshold level (ETL).", "Avoid prophylactic spraying to protect beneficial insects.", "Use selective insecticides like chlorantraniliprole or flubendiamide."], "notes": "The economic threshold is often defined as 1-2 freshly damaged leaves per hill during the vegetative stage or >10% flag leaf damage during the reproductive stage."}, "qa_seeds": {"verification_templates": ["Is the rice leaf folded over on itself longitudinally?", "Can you see white, papery streaks on the leaf surface?", "Is there evidence of the leaf being held together by silk threads?", "Is there a caterpillar or fecal matter visible inside a rolled section of the leaf?", "Does this image show a leaf that has had its green tissue scraped away from the inside?"], "attribute_templates": ["What is the primary sign of damage on this leaf?", "What color are the damaged areas on the leaf?", "Describe the physical shape of the affected leaf.", "Is the damage composed of many narrow, parallel lines or a single, broader scraped area within a fold?", "Where on the leaf is the damage located?"], "diagnosis_templates": ["Based on the folded leaves and white streaks, what pest is affecting this rice plant?", "The presence of a caterpillar inside a rolled leaf with scraped tissue is characteristic of what condition?", "Given the scorched appearance and rolled leaves, what is the likely diagnosis?"], "counterfactual_templates": ["If the leaf showed narrow white streaks but was not folded, what could it be?", "If the leaf had yellowish, wavy-margined lesions starting from the tip instead of being folded, what might be the cause?", "If the damage was a tunnel inside the leaf tissue, could it be leaffolder?"], "severity_templates": ["What percentage of the leaf area in this image is affected by white streaks or folding?", "How would you rate the severity of the leaffolder infestation: mild, moderate, or severe?", "Is the flag leaf, the uppermost leaf, showing signs of damage?"], "confounders": ["hispa", "bacterial_leaf_blight", "leaf_scald"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Use diffuse, even lighting. Avoid harsh shadows or direct sunlight that can overexpose the white streaks and obscure texture.", "occlusion_notes": "The folded leaf and the characteristic damage should be the primary subject. Minimize occlusion from other leaves or background clutter."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Entomologist", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["Rice Knowledge Bank - International Rice Research Institute (IRRI)", "University Extension Plant Disease & Pest Guides", "Compendium of Rice Diseases and Pests, APS Press"]}}
+{"schema_version": "1.0.0", "disease_id": "rice.unknown.stripes", "aliases": ["Rice striping", "Chlorotic stripes on rice", "Leaf striping"], "crop": {"common_name": "Rice", "scientific_name": "Oryza sativa", "family": "Poaceae"}, "condition": {"common_name": "Stripes", "scientific_name": "", "alt_names": ["Striping", "Chlorotic striping"], "pathogen": {"type": "unknown", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "unknown", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Nutrient imbalances (e.g., zinc, iron, magnesium deficiency)", "Soil pH extremes affecting nutrient uptake", "Possible viral infection", "Genetic disorders or mutations"], "temp_c_day": [], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of the leaf area on affected leaves shows distinct stripes.", "moderate": "11-40% of the leaf area shows prominent, often coalescing stripes.", "severe": ">40% of leaf area is affected, with widespread chlorosis or necrosis, potentially leading to stunting.", "notes": "Severity is assessed on representative, symptomatic leaves. The percentage reflects the total surface area covered by stripes relative to the total leaf area."}, "symptoms": {"leaves": ["Displays distinct, linear stripes running parallel to the leaf veins.", "Stripes are typically chlorotic (yellow to whitish).", "Less commonly, stripes can become necrotic (brown) in severe cases.", "The pattern can be continuous lines or broken/dashed stripes.", "Stripe width can be uniform or variable along the leaf blade.", "Symptoms can appear on new growth (suggesting nutrient immobility) or older leaves.", "Leaf tissue between the stripes may remain green or become pale green.", "The overall leaf may appear pale with faint green stripes in some manifestations."], "stems": [], "fruit": [], "roots": [], "whole_plant": ["Affected plants may exhibit stunting or reduced vigor if the condition is severe.", "Tillering can be reduced compared to healthy plants."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "Tungro", "condition_id": "rice.virus.tungro", "key_differences": ["Tungro causes more mottled or blotchy yellow-to-orange discoloration, not sharply defined parallel stripes.", "Tungro discoloration often starts from the leaf tip and progresses downwards, whereas stripes can appear anywhere.", "Severe stunting and reduced tillering are hallmark symptoms of Tungro, often more pronounced than with striping."]}, {"condition_name": "Narrow Brown Leaf Spot", "condition_id": "rice.fungus.narrow_brown_leaf_spot", "key_differences": ["This disease causes short, linear, necrotic (reddish-brown) lesions, not long chlorotic stripes.", "Lesions are distinct, sunken, and clearly delimited, unlike the systemic discoloration of stripes.", "The background leaf tissue around the spots remains green, whereas striping affects the entire leaf's color pattern."]}], "management": {"cultural": ["Ensure balanced fertilization, paying close attention to micronutrients like zinc, iron, and magnesium.", "Test soil pH and amend if it is outside the optimal range for rice (5.5-6.5).", "Use high-quality, certified seed from reputable sources to avoid genetic or seed-borne issues.", "Monitor fields for potential insect vectors that could transmit viruses."], "biological": [], "chemical": ["If a nutrient deficiency is suspected, conduct a tissue analysis and apply a corrective foliar spray (e.g., zinc sulfate).", "Avoid prophylactic application of pesticides or fungicides until the cause is identified."], "notes": "Accurate diagnosis is critical. Submit plant and soil samples to a diagnostic laboratory to determine if the cause is nutritional, viral, genetic, or other before taking corrective action."}, "qa_seeds": {"verification_templates": ["Does this rice leaf show a striped pattern?", "Are there linear discolorations running parallel to the veins on this leaf?", "Is there evidence of striping in this image?", "Can you see yellow or white lines on the leaf blade?", "Is the main symptom on this plant a series of stripes?"], "attribute_templates": ["What color are the stripes?", "Are the stripes continuous or broken like dashes?", "Do the stripes run parallel to the leaf's central vein?", "Are the stripes wide or narrow?", "What is the color of the leaf tissue between the stripes?", "Are the stripes more prominent on the top or bottom half of the leaf?"], "diagnosis_templates": ["What condition is characterized by long, parallel, chlorotic lines on rice leaves?", "Based on the prominent striping, what is the issue with this rice?", "Is this plant showing symptoms of stripes?"], "counterfactual_templates": ["If these were circular spots instead of lines, could it be stripes?", "If the lines were brown, short, and sunken, would it be stripes or more likely narrow brown leaf spot?", "If this were a healthy plant, would it have these yellow stripes?"], "severity_templates": ["How severe is the striping on this leaf?", "What percentage of this leaf's area is affected by stripes?", "Would you describe this case of stripes as mild, moderate, or severe?"], "confounders": ["tungro", "narrow_brown_leaf_spot", "hispa"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Diffuse, even lighting is ideal. Avoid harsh shadows and direct sun glare, which can obscure the color and texture of the stripes.", "occlusion_notes": "The symptomatic leaf should be clearly visible, with minimal occlusion from other leaves, water droplets, or debris. A clear view of the stripe pattern is essential for diagnosis."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Peer Pathologist", "created_at": "2023-10-27T11:30:00Z", "updated_at": "2023-10-27T11:30:00Z", "sources": ["General plant pathology principles", "Rice disease compendia (e.g., APS)", "University extension guides on rice production and diagnostics", "Plant nutrient deficiency guides"]}}
+{"schema_version": "1.0.0", "disease_id": "rice.disease_viral.tungro", "aliases": ["rice tungro disease", "RTD"], "crop": {"common_name": "rice", "scientific_name": "Oryza sativa", "family": "Poaceae"}, "condition": {"common_name": "tungro", "scientific_name": "Rice tungro virus complex", "alt_names": ["penyakit merah", "mentek"], "pathogen": {"type": "virus", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "Caulimoviridae; Secoviridae", "genus": "Tungrovirus; Waikavirus", "species": "Rice tungro bacilliform virus; Rice tungro spherical virus"}}}, "issue_type": "disease_viral", "transmission": {"vectors": ["Green leafhopper (Nephotettix virescens)", "Nephotettix malayanus", "Nephotettix nigropictus"], "dispersal": ["Insect vector movement between fields", "Movement of infected seedlings"], "overwintering": ["Infected rice stubble and ratoons", "Alternate weed hosts (e.g., Eleusine indica)", "Survives in living insect vectors"]}, "environmental_risk": {"risk_factors": ["High population of green leafhopper vectors", "Asynchronous planting in a region", "Presence of infected stubble from previous crops", "Cultivation of susceptible rice varieties"], "temp_c_day": [25, 32], "temp_c_night": [], "relative_humidity_pct": [70, 90], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Scattered individual plants show slight yellowing on younger leaves; stunting is not obvious.", "moderate": "Distinct patches of yellowed or orange-colored, stunted plants are visible in the field; reduced tillering is apparent.", "severe": "Widespread yellowing and severe stunting across large areas of the field; plants may die before maturity, panicles are small and sterile.", "notes": "Severity is a combination of incidence (percentage of infected plants in a field) and symptom expression (degree of stunting and discoloration) on individual plants. Leaf wetness is not a primary driver for this vector-borne viral disease."}, "symptoms": {"leaves": ["Yellow to orange-yellow discoloration, often starting from the leaf tip and margins.", "Interveinal chlorosis on leaf blades.", "Younger leaves are most affected by discoloration.", "Leaves may have a slightly mottled or striped appearance.", "Infected leaves are often shorter and more erect than healthy ones.", "Older leaves can develop small, rust-colored spots."], "stems": ["Significant reduction in the number of tillers."], "fruit": ["Delayed or inhibited flowering.", "Panicles are often small, sterile, and may not fully emerge from the sheath.", "Grains are often partially filled, discolored, or absent."], "roots": [], "whole_plant": ["Pronounced stunting is a primary and characteristic symptom.", "Plants appear less vigorous and may die before reaching maturity.", "Infection often occurs in circular or irregular patches in the field."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "bacterial_leaf_blight", "condition_id": "rice.disease_bacterial.bacterial_leaf_blight", "key_differences": ["Tungro causes uniform yellow-orange discoloration, while BLB causes water-soaked streaks with wavy margins that turn yellow-gray.", "Tungro causes severe, systemic stunting; stunting is less common or pronounced with BLB.", "BLB lesions may ooze milky bacterial droplets in high humidity, which is absent in tungro.", "Tungro symptoms are often more pronounced on younger leaves, while BLB can affect leaves of any age."]}, {"condition_name": "hispa", "condition_id": "rice.pest.hispa", "key_differences": ["Hispa damage appears as distinct, parallel white streaks or blotches from larval mining, not the uniform yellowing of tungro.", "The adult Hispa beetle (small, black, spiny) may be visible on leaves; tungro is a virus with an invisible pathogen.", "Tungro causes severe stunting of the entire plant; Hispa damage is primarily on the leaves and does not cause systemic stunting."]}, {"condition_name": "stripes", "condition_id": "rice.disease_viral.stripes", "key_differences": ["Tungro causes yellow-orange discoloration, while Rice Stripe Virus causes distinct, continuous chlorotic stripes along leaf veins.", "Tungro-infected leaves tend to be short and stiff, whereas leaves with RSV can become twisted and droopy.", "While both cause stunting, the specific leaf pattern (general discoloration vs. clear stripes) is the key differentiator."]}], "management": {"cultural": ["Planting of resistant or tolerant rice varieties.", "Synchronous planting across a large area to break the vector's life cycle.", "Rogueing (removing and destroying) infected plants and weed hosts.", "Plowing under infected rice stubble after harvest."], "biological": ["Conservation of natural enemies of leafhoppers, such as spiders, mirid bugs, and dragonflies."], "chemical": ["Application of systemic insecticides in the nursery or early in the main field to control the green leafhopper vector.", "Seed treatment with appropriate insecticides."], "notes": "Management is prophylactic and focuses on controlling the insect vector and reducing inoculum sources, as there is no direct chemical cure for the virus in infected plants."}, "qa_seeds": {"verification_templates": ["Is this rice plant stunted?", "Are the leaves of this plant an orange or yellow color?", "Does this image show symptoms of tungro disease?", "Is there a visible reduction in the number of tillers?", "Do the leaves show discoloration starting from the tip?"], "attribute_templates": ["What color are the symptomatic leaves?", "Describe the overall stature of the plant.", "What is the pattern of discoloration on the leaves?", "Which part of the plant appears most affected?", "Are the panicles, if present, fully formed?"], "diagnosis_templates": ["What disease causes both severe stunting and yellow-orange leaves in rice?", "Based on the patchy distribution of stunted, discolored plants, what is the likely issue?", "Why are these rice plants short and orange?"], "counterfactual_templates": ["If the leaves had distinct, parallel white streaks instead of uniform yellowing, what could be the cause?", "If the plant was not stunted but the leaves were yellow, could it still be a severe case of tungro?", "If there were water-soaked lesions with wavy margins, what disease would be more likely?"], "severity_templates": ["How severe is the tungro infection shown here?", "Is this a mild, moderate, or severe manifestation of tungro?", "Based on the widespread stunting, what is the severity level of this disease?"], "confounders": ["bacterial_leaf_blight", "hispa", "stripes"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Diffuse, even lighting is critical. Overexposure can wash out the characteristic yellow-orange color, while harsh shadows can obscure symptoms.", "occlusion_notes": "For individual plant diagnosis, minimize occlusion by other leaves to clearly show stunting and tillering. For field-level assessment, images showing the patchy nature of the infection are valuable."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["IRRI Rice Knowledge Bank", "APS Compendium of Rice Diseases, 2nd Edition", "University Extension Plant Pathology Guides"]}}
+{"schema_version": "1.0.0", "disease_id": "rice.disease_fungal.sheath_blight", "aliases": ["banded leaf and sheath blight", "oriental leaf and sheath blight"], "crop": {"common_name": "rice", "scientific_name": "Oryza sativa", "family": "Poaceae"}, "condition": {"common_name": "sheath blight", "scientific_name": "Rhizoctonia solani", "alt_names": [], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Basidiomycota", "class": "Agaricomycetes", "order": "Cantharellales", "family": "Ceratobasidiaceae", "genus": "Rhizoctonia", "species": "solani"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["Sclerotia in soil and irrigation water", "Plant-to-plant contact through mycelial growth", "Infected crop debris"], "overwintering": ["As sclerotia in soil", "As mycelium in infected crop residue (stubble)"]}, "environmental_risk": {"risk_factors": ["High nitrogen fertilization", "Dense planting or high tiller density", "High relative humidity", "High temperatures", "Closed crop canopy"], "temp_c_day": [28, 32], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 10}, "severity_rubric": {"unit": "qualitative", "mild": "Lesions are confined to the lower leaf sheaths, below the top 2-3 leaves.", "moderate": "Lesions have spread vertically to the upper leaf sheaths, but have not reached the flag leaf sheath.", "severe": "Lesions have reached and infected the flag leaf sheath and/or panicle, causing significant blighting.", "notes": "Severity is often measured professionally by Relative Lesion Height (RLH), the ratio of maximum lesion height to plant height. This qualitative rubric approximates low, medium, and high RLH."}, "symptoms": {"leaves": ["Initial lesions are oval, grayish-green, and water-soaked on the leaf sheath near the waterline.", "Lesions enlarge to become grayish-white or tan in the center with a distinct, irregular, dark brown or purplish-brown border.", "Lesions often merge, creating large, irregular patches with a characteristic 'snakeskin' or 'banded' pattern.", "Infection can progress from the sheath to the leaf blade, causing similar lesions and eventual leaf death."], "stems": ["The primary site of infection is the leaf sheath, which wraps the stem (culm).", "Infection progresses vertically up the tiller from one sheath to the next.", "Severe infection of the sheaths can weaken the underlying culm, contributing to lodging."], "fruit": ["Infection of the flag leaf sheath can disrupt nutrient flow, leading to incomplete grain filling and 'chalky' grains.", "In severe cases, the panicle can become directly infected, causing discoloration and sterility."], "roots": [], "whole_plant": ["Affected tillers may die, creating patches of dead plants ('hotspots') in the field.", "The disease typically spreads from plant to plant, creating expanding circular patches of infection."], "signs_microscopic_or_visible": ["White, web-like fungal strands (mycelium) may be visible on the lesion surface, especially under high humidity.", "Small, brown to black, irregularly shaped sclerotia, resembling mustard seeds, may form on the surface of infected sheaths."]}, "lookalikes": [{"condition_name": "bacterial leaf blight", "condition_id": "rice.disease_bacterial.bacterial_leaf_blight", "key_differences": ["Sheath blight lesions are oval/elliptical on the sheath; bacterial blight lesions are wavy-margined, water-soaked stripes starting from leaf tips/margins.", "Sheath blight starts near the waterline and moves up; bacterial blight starts at the leaf tip and moves down.", "Sheath blight may show fungal mycelium or sclerotia; bacterial blight may produce milky bacterial ooze when cut leaves are placed in water."]}, {"condition_name": "leaf scald", "condition_id": "rice.disease_fungal.leaf_scald", "key_differences": ["Sheath blight affects the sheath primarily; leaf scald is on the leaf blade.", "Sheath blight lesions have a grayish-white center and brown border; leaf scald lesions have a distinct zonate or chevron ('V'-shaped) pattern of alternating light and dark brown bands.", "Sheath blight progresses vertically up the tiller; leaf scald progresses from the leaf tip or margin inward."]}, {"condition_name": "blast", "condition_id": "rice.disease_fungal.blast", "key_differences": ["Sheath blight lesions are large and banded on the sheath; leaf blast lesions are smaller, diamond-shaped with gray centers, and primarily on the leaf blade.", "Sheath blight infection moves up from the waterline; blast can infect leaves, nodes (node blast), and the panicle base (neck blast), with neck blast being particularly distinct and damaging.", "The 'snakeskin' pattern of coalesced sheath blight lesions is not present in blast."]}], "management": {"cultural": ["Use optimal plant spacing to improve air circulation and reduce humidity within the canopy.", "Avoid excessive nitrogen fertilizer, which promotes lush, susceptible growth.", "Plow under or remove infected crop residue after harvest to reduce sclerotia in the soil.", "Plant less susceptible or resistant rice varieties."], "biological": ["Application of soil or foliar biocontrol agents like *Trichoderma* species or *Pseudomonas fluorescens* can suppress the pathogen."], "chemical": ["Apply fungicides from the strobilurin (e.g., azoxystrobin) or triazole (e.g., propiconazole) classes.", "Timing is critical; applications are most effective between late booting and early heading stages."], "notes": "An integrated pest management (IPM) approach combining resistant cultivars, cultural practices, and judicious fungicide use is the most effective and sustainable strategy."}, "qa_seeds": {"verification_templates": ["Does this image show large, banded lesions on the rice leaf sheath?", "Is there a lesion near the waterline with a gray center and dark brown border?", "Can you see a pattern resembling a 'snakeskin' on the stem?", "Are there any small, dark, mustard seed-like structures visible on the infected sheath?", "Is there a web-like white growth on the surface of the lesions?"], "attribute_templates": ["What is the primary plant part affected in this image?", "What color is the center of the large lesions?", "Describe the border of the sheath lesions.", "What is the overall pattern of the coalesced lesions?", "How far up the plant have the lesions progressed?"], "diagnosis_templates": ["Based on the 'snakeskin' lesions on the sheath near the waterline, what disease is affecting this rice plant?", "What fungal disease is characterized by large, grayish-white lesions with dark borders that spread up the rice tiller?", "The presence of sclerotia on banded sheath lesions points to what rice disease?"], "counterfactual_templates": ["If the lesions were diamond-shaped and on the leaf blade instead of the sheath, what disease might it be?", "If the symptoms were wavy, yellow-to-white stripes starting from the leaf tip, what would be the likely diagnosis instead of sheath blight?"], "severity_templates": ["Has the sheath blight infection reached the flag leaf?", "Based on the vertical progression of the lesions, is the disease severity mild, moderate, or severe?", "What percentage of the plant's vertical height appears to be affected by the lesions?"], "confounders": ["bacterial_leaf_blight", "leaf_scald", "blast"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Even, diffuse lighting is optimal. Avoid harsh shadows or overexposure that can wash out the color contrast between the lesion center and its border.", "occlusion_notes": "The view should clearly show the base and mid-section of the tiller. Pulling back healthy leaves to reveal the sheath lesions may be necessary for a clear diagnosis."}, "provenance": {"created_by": "Expert Plant Pathologist and VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["APS Compendium of Rice Diseases", "IRRI Rice Knowledge Bank", "General university extension guides for rice pathology"]}}
+{"schema_version": "1.0.0", "disease_id": "apple.disease_fungal.black_rot", "aliases": ["frogeye leaf spot", "blossom end rot", "canker"], "crop": {"common_name": "apple", "scientific_name": "Malus domestica", "family": "Rosaceae"}, "condition": {"common_name": "black rot", "scientific_name": "Botryosphaeria obtusa", "alt_names": ["frogeye leaf spot", "canker phase", "fruit rot phase"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Botryosphaeriales", "family": "Botryosphaeriaceae", "genus": "Botryosphaeria", "species": "obtusa"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["rain splash", "wind-driven rain", "pruning tools"], "overwintering": ["cankers on twigs and branches", "mummified fruit", "dead wood"]}, "environmental_risk": {"risk_factors": ["prolonged leaf wetness", "hail damage", "insect injury (e.g., codling moth)", "unpruned dead wood", "high humidity", "tree stress"], "temp_c_day": [20, 26], "temp_c_night": [], "relative_humidity_pct": [80, 100], "leaf_wetness_hours_threshold": 4.5}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-5% of leaf area affected with distinct, small 'frogeye' lesions.", "moderate": "6-25% of leaf area affected; lesions may be coalescing. Minor fruit or stem symptoms may be present.", "severe": ">25% of leaf area affected, often with premature defoliation. Obvious cankers or multiple rotted/mummified fruit are visible.", "notes": "This rubric primarily applies to the foliar 'frogeye leaf spot' phase. For cankers or fruit rot, a qualitative scale based on the extent of damage is more practical."}, "symptoms": {"leaves": ["Small, purple flecks that enlarge to 3-6 mm circular lesions.", "Mature lesions develop a distinct 'frogeye' appearance: a tan to light brown center with a prominent purple margin.", "Tiny black specks (pycnidia) may be visible in the center of older lesions under magnification.", "Infected leaves may turn yellow and drop prematurely, especially in severe cases."], "stems": ["Reddish-brown, sunken cankers on twigs, branches, or the main trunk.", "Cankers can expand, girdle, and kill the affected limb.", "Bark on older cankers may become cracked, blistered, or peel away."], "fruit": ["Small, brown to black spots, often initiating at the calyx (blossom) end or at a wound.", "Lesions enlarge into a firm, brown-to-black rot.", "The rotted area often displays characteristic concentric rings of alternating light and dark brown/black.", "Infected fruit shrivels, turns black, and becomes a hard, dry 'mummy' that may remain on the tree."], "roots": [], "whole_plant": [], "signs_microscopic_or_visible": ["Presence of small, black, flask-shaped structures (pycnidia) embedded in the center of leaf lesions, cankers, or rotted fruit tissue."]}, "lookalikes": [{"condition_name": "cedar apple rust", "condition_id": "apple.disease_fungal.cedar_apple_rust", "key_differences": ["Rust spots are bright orange-yellow with a reddish border, a stark contrast to the tan and purple 'frogeye' spots.", "Rust produces tiny tube-like structures (aecia) on the underside of leaves, which are absent in black rot.", "Black rot cankers and fruit mummies are characteristic and not produced by cedar apple rust."]}, {"condition_name": "alternaria blotch", "condition_id": "apple.disease_fungal.alternaria_blotch", "key_differences": ["Alternaria lesions are often irregular or blotchy, lacking the distinct circular 'frogeye' shape of black rot.", "Alternaria blotches are typically purplish-brown and may have a necrotic center, but lack the pronounced, well-defined purple margin.", "While causing defoliation, Alternaria is not associated with the severe cankers and fruit mummification of black rot."]}], "management": {"cultural": ["Prune out dead or cankered branches during winter dormancy, cutting well below the visible canker.", "Remove and destroy mummified fruit from trees and the ground to reduce inoculum.", "Promote good air circulation through proper pruning to speed up drying of foliage.", "Maintain tree vigor with appropriate fertilization and irrigation to reduce stress."], "biological": [], "chemical": ["Apply protectant fungicides (e.g., captan, mancozeb) from silver tip through petal fall.", "Consider systemic fungicides (e.g., strobilurins, DMIs) for more effective control, especially after infection periods.", "Ensure thorough spray coverage of all parts of the tree, including branches and fruit."], "notes": "Fungicide timing is critical and should be guided by weather conditions, disease prediction models, and orchard history."}, "qa_seeds": {"verification_templates": ["Does this leaf show a lesion with a tan center and a distinct purple margin?", "Is there a sunken, dark-colored canker visible on this apple branch?", "Is the apple fruit showing a firm black rot with concentric rings?", "Can you see a 'frogeye' pattern on any of the leaves?", "Is there a shriveled, black, mummified fruit on this tree?"], "attribute_templates": ["What color is the margin of the leaf spot?", "What is the pattern of the rot on the fruit?", "What shape are the lesions on the leaves?", "Describe the appearance of the bark on the branch lesion.", "Is the center of the leaf spot lighter or darker than its edge?"], "diagnosis_templates": ["Based on the 'frogeye' leaf spots, what disease is affecting this apple tree?", "The presence of mummified fruit and branch cankers suggests what fungal disease?", "What condition causes a firm, black rot with concentric rings on apples?"], "counterfactual_templates": ["If the leaf spots were bright orange instead of tan and purple, what disease might it be?", "If the lesions were olive-green and velvety and caused the leaf to pucker, what would be the likely diagnosis?"], "severity_templates": ["What percentage of this leaf's surface is covered by 'frogeye' spots?", "Based on the number of affected leaves, would you classify this infection as mild, moderate, or severe?", "How many mummified fruits are visible on this branch?"], "confounders": ["apple.disease_fungal.scab", "apple.disease_fungal.cedar_apple_rust", "apple.disease_fungal.alternaria_blotch"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Even, diffuse lighting is preferred. Avoid harsh shadows or direct sunlight that can obscure lesion details like the purple margin or concentric rings.", "occlusion_notes": "The primary symptom (lesion, canker, fruit rot) should be clearly visible and not significantly obscured by other leaves, branches, or objects."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University extension guides for apple diseases", "APS Compendium of Apple and Pear Diseases", "Peer-reviewed plant pathology literature"]}}
+{"schema_version": "1.0.0", "disease_id": "apple.disease_fungal.cedar_apple_rust", "aliases": ["CAR", "apple rust"], "crop": {"common_name": "apple", "scientific_name": "Malus domestica", "family": "Rosaceae"}, "condition": {"common_name": "cedar apple rust", "scientific_name": "Gymnosporangium juniperi-virginianae", "alt_names": [], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Basidiomycota", "class": "Pucciniomycetes", "order": "Pucciniales", "family": "Pucciniaceae", "genus": "Gymnosporangium", "species": "juniperi-virginianae"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": ["wind"], "dispersal": ["aeciospores from apple to cedar/juniper", "basidiospores from cedar/juniper to apple"], "overwintering": ["as mycelium in galls on the alternate host, Eastern red cedar (Juniperus virginiana) and other susceptible junipers"]}, "environmental_risk": {"risk_factors": ["proximity to alternate host (Eastern red cedar)", "prolonged spring rain events", "mild temperatures (7-25°C) during early leaf development"], "temp_c_day": [7, 25], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 4}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "< 5% of leaf area affected with pale yellow to small orange spots. No aecia visible.", "moderate": "5-25% of leaf area affected. Spots are bright orange-yellow, some with central black dots (spermogonia). Aecia may be developing on the underside.", "severe": "> 25% of leaf area affected. Lesions are large, often coalescing. Prominent aecia (spore tubes) on the underside are common, leading to premature defoliation.", "notes": "This rubric focuses on leaf symptoms, the most common presentation for VQA. Severity can also be judged by the percentage of infected fruit or degree of defoliation."}, "symptoms": {"leaves": ["Small, pale yellow spots appear on the upper leaf surface in spring.", "Spots enlarge to 1/4-inch diameter, becoming bright orange-yellow, often with a reddish border.", "Tiny black dots (spermogonia) may form in the center of the orange spots on the upper surface.", "In late summer, distinctive brownish, fringed, tube-like structures (aecia) develop on the leaf underside, directly below the spots.", "Heavily infected leaves may turn yellow and drop prematurely, especially in dry conditions."], "stems": ["Twig infections are rare but can cause small, slightly swollen cankers on highly susceptible cultivars."], "fruit": ["Orange-yellow lesions, similar to leaf spots but larger, appear on the fruit, typically near the calyx end.", "Fruit lesions may become raised, corky, and cracked.", "Aecia (spore tubes) can also form on fruit lesions, making the fruit unmarketable."], "roots": [], "whole_plant": ["Severe infections cause defoliation, reducing tree vigor, fruit size, and overall yield."], "signs_microscopic_or_visible": ["Visible sign: Brownish, fringed, tube-like aecia on the underside of apple leaves and on fruit.", "Visible sign (on alternate host): Brown, kidney-shaped galls on cedar/juniper that produce gelatinous, orange, horn-like structures (telial horns) in wet spring weather."]}, "lookalikes": [], "management": {"cultural": ["Plant rust-resistant apple cultivars.", "Remove nearby alternate hosts (Eastern red cedar, junipers) within a 1-2 mile radius, if feasible.", "Maintain tree vigor through proper pruning, fertilization, and irrigation."], "biological": ["No widely effective biological control agents are commercially available for cedar apple rust."], "chemical": ["Apply preventative fungicides from the pink bud stage through early summer.", "Effective fungicide classes include DMIs (FRAC 3) and strobilurins (FRAC 11).", "Fungicide timing is critical and should coincide with periods of rain and basidiospore release from cedar galls."], "notes": "Integrated management combining resistant cultivars and well-timed fungicide applications is most effective. Eradication of the alternate host is often impractical."}, "qa_seeds": {"verification_templates": ["Is this an example of cedar apple rust on an apple leaf?", "Does this fruit show symptoms of a fungal rust disease?", "Are there bright orange or yellow circular spots on this leaf?", "Can you see any tube-like structures on the underside of the leaf?", "Is the condition shown here caused by the fungus *Gymnosporangium juniperi-virginianae*?", "Is this a healthy apple leaf?"], "attribute_templates": ["What color are the lesions on the leaf's upper surface?", "Describe the structures visible on the underside of the leaf.", "Are the spots on the leaf circular or irregular?", "What is the color of the border around the spots?", "Are there any black specks in the center of the orange spots?", "On what part of the fruit are the lesions located?"], "diagnosis_templates": ["What disease causes these bright orange spots and underside spore tubes on apple leaves?", "Based on the symptoms, what is wrong with this apple?", "What is the name of this apple disease?"], "counterfactual_templates": ["If these spots were olive-green and velvety, what disease would it be instead?", "What would this leaf look like if it were infected with black rot's frogeye leaf spot instead of rust?", "If this leaf were healthy, what would it look like?"], "severity_templates": ["How severe is the cedar apple rust infection shown here?", "What percentage of this leaf's surface is affected by rust?", "Based on the lesion size and presence of aecia, is this infection mild, moderate, or severe?"], "confounders": ["apple scab", "black rot"]}, "data_requirements": {"min_resolution_px": 800, "min_roi_fraction": 0.3, "lighting_notes": "Use even, diffuse light. Avoid hard shadows and overexposure, which can wash out the characteristic orange and yellow colors of the lesions.", "occlusion_notes": "The primary symptom (leaf spots or fruit lesions) must be clearly visible and in focus. For definitive diagnosis, images showing both the upper leaf surface (spots) and lower leaf surface (aecia) are highly valuable."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["University extension plant pathology guides", "APS Compendium of Apple and Pear Diseases and Disorders", "General plant pathology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "apple.healthy.healthy", "aliases": ["normal apple", "unaffected apple", "disease-free apple"], "crop": {"common_name": "apple", "scientific_name": "Malus domestica", "family": "Rosaceae"}, "condition": {"common_name": "healthy", "scientific_name": null, "alt_names": [], "pathogen": {"type": "none", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "healthy", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Optimal growing conditions", "Good air circulation", "Appropriate soil moisture and nutrition", "Absence of pathogen pressure"], "temp_c_day": [], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "0% leaf area affected by symptoms.", "moderate": "Not applicable for a healthy condition.", "severe": "Not applicable for a healthy condition.", "notes": "Severity for a healthy plant is defined as the complete absence of disease or abiotic stress symptoms. Any visible symptom would classify the plant under a different condition."}, "symptoms": {"leaves": ["Uniform green coloration, specific shade may vary by cultivar.", "Smooth, waxy surface (cuticle) without lesions, spots, or pustules.", "Leaf margins are intact, not ragged, curled, or necrotic.", "No visible powdery or sooty growth on upper or lower surfaces.", "Veins are normal in color and not swollen or discolored.", "Petioles are firm, green, and unblemished."], "stems": ["Bark is smooth and intact on young shoots, becoming rougher on older wood.", "No cankers, sunken areas, cracks, or oozing sap.", "Color is appropriate for the age and cultivar (e.g., reddish-brown to grayish-brown)."], "fruit": ["Skin is smooth, firm, and free of spots, scabs, cracks, or rot.", "Coloration is uniform and characteristic of the cultivar at its current maturity stage.", "Shape is symmetrical and not distorted.", "Flesh is crisp, firm, and without internal browning or breakdown."], "roots": [], "whole_plant": ["Vigorous and upright growth habit.", "Dense, well-distributed canopy of leaves.", "Evidence of new, healthy shoot and leaf development during the growing season."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "scab", "condition_id": "apple.fungal.scab", "key_differences": ["Healthy leaves are uniformly green and smooth; scab causes distinct olive-green to brown, velvety spots.", "Healthy fruit has smooth skin; scab lesions on fruit become raised, dark, and corky.", "Healthy leaves are flat; heavily infected leaves with scab may become distorted or curled."]}, {"condition_name": "powdery_mildew", "condition_id": "apple.fungal.powdery_mildew", "key_differences": ["Healthy leaves have a clean, waxy surface; powdery mildew appears as white, felt-like patches on leaves, shoots, and blossoms.", "Healthy new growth is vigorous and green; mildew-infected shoots are often stunted, curled, and covered in the white mycelium.", "Healthy fruit skin is smooth; powdery mildew can cause a net-like russeting on the fruit surface."]}, {"condition_name": "cedar apple rust", "condition_id": "apple.fungal.cedar_apple_rust", "key_differences": ["Healthy leaves have no spots; cedar apple rust produces bright, conspicuous orange-yellow spots on the upper leaf surface.", "The underside of a healthy leaf is plain; rust spots develop small, black specks (spermogonia) and later, tube-like structures (aecia) on the underside.", "Healthy fruit is unblemished; rust lesions can appear on fruit, typically near the calyx end, as orange, slightly raised spots."]}], "management": {"cultural": ["Select resistant cultivars.", "Ensure proper plant spacing for good air circulation.", "Maintain balanced soil fertility and pH.", "Use proper pruning techniques to open the canopy.", "Provide adequate and consistent irrigation, avoiding overhead watering."], "biological": [], "chemical": [], "notes": "Management for a healthy plant focuses on preventative practices and maintaining optimal growing conditions to reduce susceptibility to future diseases."}, "qa_seeds": {"verification_templates": ["Is this apple leaf healthy?", "Does the apple in the image appear to be free of disease?", "Are there any visible symptoms of disease or stress on this plant part?", "Is this an example of a normal, healthy apple?", "Verify that the leaf surface is clean and unblemished.", "Does this apple fruit show any signs of rot or scab?"], "attribute_templates": ["What is the color of the leaf surface?", "Describe the texture of the apple's skin.", "Are there any spots, lesions, or discolorations on the leaves?", "Is there any powdery substance visible on the shoots or leaves?", "What color are the spots on the leaf?", "Describe the shape of the leaves."], "diagnosis_templates": ["What is the health status of this apple plant?", "Is this apple healthy or does it have a disease?", "Based on the visual evidence, what condition is affecting this apple?"], "counterfactual_templates": ["If this leaf had powdery mildew, what would be different?", "What would you see on this fruit if it were infected with black rot?", "How would this leaf's appearance change if it had cedar apple rust?"], "severity_templates": ["What percentage of the plant is affected by symptoms?", "Is the condition of this plant considered healthy?", "How would you rate the health of this apple tree?"], "confounders": ["scab", "powdery_mildew", "cedar_apple_rust", "alternaria_blotch"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Image should be taken in bright, diffuse light (e.g., overcast day or in shade) to avoid harsh shadows and specular highlights that can obscure surface details.", "occlusion_notes": "The primary subject (leaf, fruit, or stem) should be minimally occluded by other plant parts or background objects. Focus should be sharp on the subject's surface."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["General university extension guides for apple production", "Compendium of Apple and Pear Diseases and Pests, Second Edition (APS Press)"]}}
+{"schema_version": "1.0.0", "disease_id": "blueberry.healthy.healthy", "aliases": ["normal", "asymptomatic", "unaffected"], "crop": {"common_name": "blueberry", "scientific_name": "Vaccinium corymbosum", "family": "Ericaceae"}, "condition": {"common_name": "healthy", "scientific_name": "", "alt_names": ["asymptomatic", "normal growth"], "pathogen": {"type": "none", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "healthy", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Optimal sunlight exposure (6-8 hours/day)", "Well-drained, acidic soil (pH 4.5-5.5)", "Consistent soil moisture without waterlogging", "Good air circulation through and around the plant canopy"], "temp_c_day": [20, 27], "temp_c_night": [10, 18], "relative_humidity_pct": [50, 70], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Not applicable.", "moderate": "Not applicable.", "severe": "Not applicable.", "notes": "For a 'healthy' condition, there is no severity scale. Any presence of symptoms would classify the plant under a different condition (e.g., a disease or disorder)."}, "symptoms": {"leaves": ["Uniformly deep green color, though new growth can be reddish.", "Leaves are fully expanded, smooth, and have a slightly waxy surface.", "No spots, lesions, discoloration, or signs of necrosis.", "Leaf margins are smooth and intact.", "Seasonal color change to red or orange in autumn is normal."], "stems": ["New stems (canes) are smooth, flexible, and green or reddish.", "Older stems are woody, gray-brown, and firm.", "No cankers, galls, cracks, or dieback is visible."], "fruit": ["Developing fruit is small, firm, and green.", "Mature fruit is plump, firm, and has a uniform dark blue color.", "A waxy, silvery-white coating ('bloom') is present on mature berries.", "No signs of shriveling, mold, or spots."], "roots": [], "whole_plant": ["Exhibits vigorous, upright growth.", "Possesses a full, dense canopy of leaves appropriate for the season.", "Shows active new growth on cane tips during the growing season."], "signs_microscopic_or_visible": ["No visible fungal structures (e.g., mycelium, spores), bacterial ooze, or insect colonies."]}, "lookalikes": [], "management": {"cultural": ["Plant in well-drained, acidic soil rich in organic matter.", "Ensure full sun exposure for optimal photosynthesis and fruit production.", "Provide consistent irrigation, especially during fruit development.", "Apply a layer of mulch (e.g., pine bark, sawdust) to conserve moisture and suppress weeds.", "Conduct annual dormant pruning to remove dead/weak wood and improve air circulation."], "biological": ["Promote biodiversity to support natural predators of common pests."], "chemical": ["Not applicable for maintaining health; chemical controls are reactive measures for specific issues."], "notes": "Maintaining plant health is primarily achieved through proactive and consistent cultural practices tailored to the crop's needs."}, "qa_seeds": {"verification_templates": ["Is this blueberry plant healthy?", "Does this image show a normal, asymptomatic blueberry bush?", "Are the leaves and stems free from any signs of disease or damage?", "Is this an example of healthy blueberry foliage?", "Is the fruit on this plant developing normally?"], "attribute_templates": ["What color are the leaves?", "Describe the condition of the stems.", "Are there any spots or lesions on the leaves?", "What is the overall growth habit of the plant?", "Describe the appearance of the berries.", "Is there a waxy bloom on the fruit?"], "diagnosis_templates": ["What is the condition of this blueberry plant?", "Is this plant healthy or does it have a disease?", "Based on the visible evidence, provide a diagnosis for this plant."], "counterfactual_templates": ["What would the leaves look like if this plant had anthracnose?", "If this plant were suffering from iron deficiency, what color would the young leaves be?"], "severity_templates": ["How would you rate the health of this plant?", "Is there any visible damage on the plant?", "Are there any symptoms present?"], "confounders": []}, "data_requirements": {"min_resolution_px": 480, "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse daylight is ideal. Avoid harsh shadows, direct flash, or over/underexposure that obscures color and texture.", "occlusion_notes": "Key plant parts like leaves, stems, and fruit should be in focus and not significantly obscured by other objects, plants, or debris."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["General university extension guides for blueberry cultivation", "APS Compendium of Blueberry, Cranberry, and Lingonberry Diseases and Pests"]}}
+{"schema_version": "1.0.0", "disease_id": "cherry.healthy.healthy", "aliases": ["normal cherry", "unaffected cherry", "asymptomatic cherry"], "crop": {"common_name": "cherry", "scientific_name": "Prunus avium", "family": "Rosaceae"}, "condition": {"common_name": "healthy", "scientific_name": "", "alt_names": ["asymptomatic", "normal"], "pathogen": {"type": "none", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "healthy", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Describes optimal growing conditions, not risk factors for a condition.", "Full sun exposure (6-8 hours/day).", "Well-drained, fertile soil with a pH between 6.0 and 7.0.", "Good air circulation to keep foliage dry.", "Consistent moisture, avoiding both drought and waterlogged conditions."], "temp_c_day": [], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Plant is completely free of any visible symptoms of disease, stress, or nutrient deficiency.", "moderate": "Not applicable. Any deviation from 'mild' indicates a potential issue, not a moderate level of health.", "severe": "Not applicable.", "notes": "This rubric is used to confirm the absence of symptoms. The only applicable rating is 'mild' for a healthy plant."}, "symptoms": {"leaves": ["Uniformly green color, appropriate for the cultivar.", "Smooth, glossy, or matte surface without spots, lesions, or residue.", "Elliptical to ovate shape with characteristic serrated margins.", "No curling, puckering, distortion, or significant chlorosis (yellowing).", "Normal size and density for the age and cultivar of the tree.", "Petioles are firm, green, and turgid."], "stems": ["Bark is smooth on young wood, becoming rougher with horizontal lenticels on older wood.", "Color is typically reddish-brown to grayish-brown.", "No cankers, gummosis (oozing sap), cracks, or unusual swellings."], "fruit": ["Skin is smooth, glossy, and uniformly colored when ripe.", "Flesh is firm and free of brown spots, rot, or pits.", "No cracks, lesions, sunken areas, or deformities.", "Stem (pedicel) is green, turgid, and firmly attached."], "roots": [], "whole_plant": ["Vigorous, upright growth habit with a well-developed canopy.", "No signs of wilting, stunting, or branch dieback."], "signs_microscopic_or_visible": ["Absence of any fungal growth (e.g., mycelia, spores), bacterial ooze, or insect-related signs like frass or webbing."]}, "lookalikes": [{"condition_name": "powdery mildew", "condition_id": "cherry.fungal.powdery_mildew", "key_differences": ["Healthy leaves have a clean, uniform green surface, whereas powdery mildew appears as distinct white, powdery patches on leaves and shoots.", "Healthy leaves maintain their normal shape, while leaves with severe powdery mildew can become distorted, curled, or puckered.", "Healthy fruit has a smooth, glossy skin, whereas powdery mildew can cause rough, russeted patches on the fruit surface."]}], "management": {"cultural": ["Plant in locations with full sun and good air circulation.", "Prune annually to maintain an open canopy, which promotes rapid drying of foliage.", "Provide consistent and appropriate irrigation, avoiding overhead watering.", "Maintain balanced soil fertility based on regular soil testing.", "Select cultivars known for good vigor and disease resistance in your region."], "biological": [], "chemical": [], "notes": "Management for a healthy plant focuses on preventative care and maintaining optimal growing conditions to minimize stress and susceptibility to future issues."}, "qa_seeds": {"verification_templates": ["Is this cherry leaf healthy?", "Does this cherry fruit show any signs of disease or damage?", "Are the leaves in the image free from spots or discoloration?", "Confirm that the cherry branch is free of cankers or oozing sap.", "Is the overall appearance of the cherry plant vigorous and normal?"], "attribute_templates": ["What color are the leaves?", "Describe the surface texture of the cherry leaves.", "Is there any white powder visible on the leaves or fruit?", "Are the leaves curled, puckered, or distorted?", "What is the condition of the fruit skin?", "Is there any gummosis (sap oozing) on the branches?"], "diagnosis_templates": ["What is the condition of this cherry plant?", "Is this cherry plant healthy or diseased?", "Based on the leaves and fruit, provide a diagnosis."], "counterfactual_templates": ["If this leaf had a white, powdery coating, what would the condition be?", "What would you see on the leaves if this plant were not healthy?", "If the fruit had sunken brown spots, what might be the issue?"], "severity_templates": ["How severe is the condition shown?", "Is the plant completely free of symptoms?", "What percentage of the leaf area is affected?"], "confounders": ["powdery_mildew"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse lighting is best. Avoid harsh shadows or direct sunlight that can create glare and obscure leaf texture or subtle color variations.", "occlusion_notes": "The primary subject (leaf, fruit, stem) should be clearly in focus and not significantly obscured by other foliage, branches, or background objects."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University extension guides on cherry cultivation", "APS Compendium of Stone Fruit Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "cherry.disease_fungal.powdery_mildew", "aliases": ["cherry powdery mildew", "white mold on cherry"], "crop": {"common_name": "cherry", "scientific_name": "Prunus spp.", "family": "Rosaceae"}, "condition": {"common_name": "powdery mildew", "scientific_name": "Podosphaera clandestina", "alt_names": ["white mold"], "pathogen": {"type": "fungus", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Leotiomycetes", "order": "Erysiphales", "family": "Erysiphaceae", "genus": "Podosphaera", "species": "clandestina"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["wind-borne conidia"], "overwintering": ["as chasmothecia (fruiting bodies) on bark, fallen leaves, or in dormant buds"]}, "environmental_risk": {"risk_factors": ["high humidity (but not free water)", "moderate temperatures", "dense canopy with poor air circulation", "succulent new growth"], "temp_c_day": [18, 25], "temp_c_night": [], "relative_humidity_pct": [70, 95], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf or fruit surface area covered by white mycelium.", "moderate": "11-40% of leaf or fruit surface area covered; some leaf curling or distortion may be present.", "severe": ">40% of leaf or fruit surface area covered; significant leaf distortion, yellowing, defoliation, or fruit cracking/russeting.", "notes": "Severity is assessed by estimating the percentage of the visible surface area of symptomatic leaves or fruit that is covered by the white, powdery fungal growth. Powdery mildew does not require free water (leaf wetness) to infect, hence the threshold is 0."}, "symptoms": {"leaves": ["White, powdery, circular patches appear on the upper or lower leaf surface.", "Patches can coalesce to cover the entire leaf surface.", "Infected young leaves may become distorted, twisted, or curled upwards.", "The white fungal growth can be rubbed off, revealing the leaf tissue underneath.", "Older, established infections may cause leaves to yellow and drop prematurely."], "stems": ["White mycelial growth can develop on young, succulent shoots and suckers."], "fruit": ["White, circular lesions appear on the fruit surface, often near the stem end.", "Infected areas on developing fruit may stop growing, leading to pitting or deformation.", "On mature fruit, infection causes circular to irregular, leathery, russeted patches.", "Severe fruit infections can lead to cracking."], "roots": [], "whole_plant": ["Reduced vigor and stunted growth, especially in heavily infected young trees."], "signs_microscopic_or_visible": ["Visible white to grayish, powdery mycelium and conidia on plant surfaces."]}, "lookalikes": [{"condition_name": "healthy", "condition_id": "cherry.healthy.none", "key_differences": ["Healthy leaves are uniformly green without any white, powdery coating.", "Healthy leaves have a smooth, flat surface, whereas infected leaves may be curled or distorted.", "Healthy fruit has a smooth, glossy, unblemished skin, unlike the pitted or russeted surface of infected fruit."]}], "management": {"cultural": ["Prune to improve air circulation and light penetration within the canopy.", "Remove and destroy infected shoots and suckers during the growing season.", "Avoid excessive nitrogen fertilization, which promotes susceptible new growth.", "Select more resistant cherry varieties if available."], "biological": ["Application of bio-fungicides containing *Bacillus subtilis* or potassium bicarbonate.", "Neem oil or horticultural oils can be effective but may cause phytotoxicity in hot weather."], "chemical": ["Application of protective or systemic fungicides (e.g., sulfur, strobilurins, DMIs) beginning at petal fall or first sign of disease.", "Rotate fungicide classes (FRAC groups) to prevent the development of resistance."], "notes": "Management is most effective when initiated preventatively based on weather conditions, disease models, and orchard history."}, "qa_seeds": {"verification_templates": ["Is there a white, powdery substance on the cherry leaves?", "Does this cherry fruit show signs of russeting or pitting?", "Can you see any white fungal growth on the leaves or fruit?", "Are the young leaves curled or distorted?", "Is the powdery substance on the leaf surface removable?"], "attribute_templates": ["What color is the powdery growth on the leaf?", "Where on the plant is the white powder located?", "Describe the texture of the affected fruit skin.", "What is the shape of the initial spots on the leaves?", "How are the infected leaves shaped compared to healthy ones?", "Is the white growth on the top or bottom of the leaf?"], "diagnosis_templates": ["What disease is causing the white powder on these cherry leaves?", "Based on the curled leaves and white mycelium, what is the likely diagnosis?", "Why is the skin of this cherry fruit russeted and pitted?"], "counterfactual_templates": ["If the leaves were healthy, what would they look like?", "What would this cherry look like without the powdery mildew infection?"], "severity_templates": ["How severe is the powdery mildew infection on this leaf?", "What percentage of the fruit surface is covered by powdery mildew?", "Is this a mild, moderate, or severe case of cherry powdery mildew?"], "confounders": ["Is this a healthy cherry leaf or is it diseased?"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Even, diffuse lighting is preferred. Avoid harsh shadows or overexposure that can wash out the white mycelial growth.", "occlusion_notes": "Symptomatic leaves or fruit should be clearly visible and not significantly obscured by other plant parts."}, "provenance": {"created_by": "expert_plant_pathologist_vqa_designer", "reviewed_by": "expert_plant_pathologist_vqa_designer", "created_at": "2024-05-16T10:00:00Z", "updated_at": "2024-05-16T10:00:00Z", "sources": ["General university extension guides for stone fruit pathology", "APS Compendium of Stone Fruit Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "grape.disease_fungal.black_rot", "aliases": ["grape black rot"], "crop": {"common_name": "grape", "scientific_name": "Vitis spp.", "family": "Vitaceae"}, "condition": {"common_name": "black rot", "scientific_name": "Guignardia bidwellii", "alt_names": [], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Botryosphaeriales", "family": "Botryosphaeriaceae", "genus": "Guignardia", "species": "bidwellii"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["rain_splash", "wind_driven_rain"], "overwintering": ["mummified_fruit_on_vine_or_ground", "lesions_on_canes_and_tendrils"]}, "environmental_risk": {"risk_factors": ["Warm, humid weather", "Prolonged leaf wetness", "Poor air circulation in the canopy", "Presence of overwintering inoculum (mummies, cankers)"], "temp_c_day": [20, 27], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 6}, "severity_rubric": {"unit": "qualitative", "mild": "Few leaf spots (<5% area on symptomatic leaves); <10% of berries in affected clusters show symptoms.", "moderate": "Multiple, coalescing leaf spots (5-25% area on symptomatic leaves); 10-50% of berries in affected clusters are mummified.", "severe": "Extensive leaf spotting leading to some defoliation (>25% leaf area); >50% of berries in affected clusters are mummified, resulting in significant yield loss.", "notes": "Severity is best assessed by combining leaf and fruit symptoms. Fruit infection is the primary cause of economic damage. Assessment should be made on a representative sample of clusters and leaves throughout the vineyard."}, "symptoms": {"leaves": ["Circular, tan to reddish-brown lesions, 2-10 mm in diameter, appear on upper leaf surfaces.", "Lesions are surrounded by a distinct, dark brown to black border.", "Tiny, black, pimple-like fruiting bodies (pycnidia) form in a ring-like pattern within the lesion.", "The center of older lesions may turn lighter brown and become slightly sunken."], "stems": ["Elongated, black, slightly sunken cankers can form on young shoots, petioles, and tendrils.", "Pycnidia may be visible within these stem lesions."], "fruit": ["Infection begins as a small, whitish spot on a developing berry, often surrounded by a brown halo.", "The spot rapidly enlarges, causing the entire berry to rot and turn from green to reddish-brown, then black.", "Infected berries shrivel into hard, black, wrinkled 'mummies'.", "The surface of mummified fruit becomes covered with numerous black pycnidia."], "roots": [], "whole_plant": [], "signs_microscopic_or_visible": ["Presence of black, flask-shaped pycnidia arranged in a ring on leaf lesions or scattered on fruit mummies."]}, "lookalikes": [{"condition_name": "anthracnose", "condition_id": "grape.disease_fungal.anthracnose", "key_differences": ["Anthracnose leaf spots are angular with dark borders and often develop a 'shot-hole' appearance where the center falls out; black rot lesions are circular and remain intact.", "Anthracnose fruit lesions are sunken 'bird's eye spots' with a gray/pink center and dark border; black rot affects the entire berry, turning it into a uniform black mummy.", "Anthracnose stem lesions are typically deeper and more crater-like than those of black rot."]}, {"condition_name": "downy mildew", "condition_id": "grape.disease_oomycete.downy_mildew", "key_differences": ["Downy mildew leaf spots are initially yellowish, 'oily' spots on the upper surface, not tan with a dark border like black rot.", "Downy mildew produces a white, fluffy fungal growth on the underside of leaves in humid conditions; black rot produces black pycnidia on the upper surface.", "Downy mildew-infected fruit becomes leathery and brown but does not shrivel into a hard, black mummy covered in pycnidia."]}], "management": {"cultural": ["Sanitation: Remove and destroy mummified fruit and infected canes during dormant pruning.", "Canopy management: Use pruning and training systems that improve air circulation and sunlight penetration to promote rapid drying.", "Select resistant or less susceptible grape cultivars.", "Control weeds to reduce humidity within the vine canopy."], "biological": ["Application of bio-fungicides containing strains of *Bacillus subtilis* or *Bacillus amyloliquefaciens* may provide some suppression when used in a preventative program."], "chemical": ["Implement a preventative fungicide spray program starting before bloom and continuing through veraison.", "Rotate fungicides with different modes of action (FRAC groups) to prevent resistance.", "Effective chemical classes include mancozeb, captan, strobilurins (QoI), and demethylation inhibitors (DMI)."], "notes": "Fungicide application timing is critical and should be guided by disease prediction models, weather forecasts (impending rain events), and vine phenology."}, "qa_seeds": {"verification_templates": ["Is there a circular, tan lesion with a dark border on this leaf?", "Can you see tiny black dots arranged in a ring inside the leaf spot?", "Is this grape berry shriveled, black, and hard?", "Does this grape cluster contain any mummified fruit?", "Is the surface of the wrinkled berry covered in small black bumps?"], "attribute_templates": ["What is the shape of the spots on the leaves?", "Describe the border of the leaf lesion.", "What color is the affected grape berry?", "What is the texture of the diseased fruit?", "Are there any visible fungal structures on the leaf spot, and if so, what do they look like?"], "diagnosis_templates": ["What disease causes circular leaf spots with black pycnidia and turns entire grapes into black, shriveled mummies?", "Based on the mummified fruit, what is the most likely disease affecting this grape cluster?", "What is the likely cause of these tan, circular leaf spots with dark borders and tiny black dots inside?"], "counterfactual_templates": ["If the leaf spot had a white, fuzzy growth on its underside, would it still be black rot?", "If the fruit lesion was a sunken 'bird's eye spot' instead of a full black mummy, what disease would it be?", "If the leaf symptoms were yellow, oily patches, what would be a more likely diagnosis?"], "severity_templates": ["What percentage of this leaf's area is affected by lesions?", "How would you classify the severity of black rot on this fruit cluster: mild, moderate, or severe?", "Are more than half of the berries in this cluster mummified?"], "confounders": ["anthracnose", "downy_mildew", "esca_black_measles", "pest_damage"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Use even, diffuse lighting. Avoid harsh shadows or overexposure, which can obscure key features like pycnidia within lesions.", "occlusion_notes": "The primary symptom (e.g., a characteristic leaf lesion or mummified fruit cluster) should be clearly visible and not significantly obscured by other leaves, stems, or background elements."}, "provenance": {"created_by": "Expert Plant Pathologist and VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2024-05-22T10:00:00Z", "updated_at": "2024-05-22T10:00:00Z", "sources": ["University extension plant pathology guides", "APS Compendium of Grape Diseases, Second Edition", "Peer-reviewed plant pathology literature"]}}
+{"schema_version": "1.0.0", "disease_id": "grape.disease_fungal.esca_black_measles", "aliases": ["Esca disease complex", "Black measles", "Apoplexy", "Tiger stripe disease"], "crop": {"common_name": "grape", "scientific_name": "Vitis vinifera", "family": "Vitaceae"}, "condition": {"common_name": "Esca (Black Measles)", "scientific_name": "Phaeomoniella chlamydospora, Phaeoacremonium minimum, Fomitiporia mediterranea, and others", "alt_names": ["Grape apoplexy", "Young esca", "Esca proper"], "pathogen": {"type": "fungal_complex", "taxonomy": {"kingdom": "Fungi", "phylum": "Basidiomycota", "class": "Agaricomycetes", "order": "Hymenochaetales", "family": "Hymenochaetaceae", "genus": "Fomitiporia", "species": "mediterranea"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": ["Contaminated pruning tools"], "dispersal": ["Rain splash (of spores from fungal conks)", "Infected propagation material (cuttings, rootstock)"], "overwintering": ["As mycelium within the permanent woody structures (trunk, cordons) of infected vines"]}, "environmental_risk": {"risk_factors": ["Mature vines (>8 years old)", "Large pruning wounds made during high rainfall periods", "Drought stress or other environmental stressors", "Vineyards with a history of the disease"], "temp_c_day": [25, 35], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Scattered leaves with characteristic 'tiger-stripe' symptoms on one or two shoots; no visible dieback.", "moderate": "Multiple shoots or a single cordon show distinct foliar symptoms; minor shoot wilting may be present.", "severe": "Widespread foliar symptoms across the vine, significant dieback of cordons, or sudden collapse of the entire vine (apoplexy).", "notes": "Severity is based on external symptom expression in the canopy, as the internal wood infection is not visible. Symptom expression can be erratic from year to year."}, "symptoms": {"leaves": ["Distinctive 'tiger-stripe' pattern: interveinal areas turn yellow (chlorotic) then brown (necrotic).", "Necrotic areas are often bordered by a dark red or purplish margin.", "Leaf margins may look scorched or burnt.", "In the acute 'apoplexy' form, leaves suddenly wilt, dry out, and remain attached to the shoot."], "stems": ["Internally, a cross-section of the trunk or cordon reveals dark brown to black spots ('black goo') in the xylem.", "In older infections, a central column of soft, spongy, yellowish-white wood rot is present.", "Affected shoots may show stunted growth or wilt during hot periods."], "fruit": ["Small, dark purple to black, circular spots ('measles') develop on the berry skin.", "The spots may be surrounded by a slightly lighter halo.", "In severe cases, berries can crack, shrivel, or have a bitter taste."], "roots": [], "whole_plant": ["Chronic form shows a gradual decline in vine vigor over several years.", "Acute form ('apoplexy') involves the sudden death of part or all of the vine in mid-summer."], "signs_microscopic_or_visible": ["In mature infections, shelf-like fungal conks (fruiting bodies) of *Fomitiporia* may emerge from old, large pruning wounds on the trunk."]}, "lookalikes": [{"condition_name": "Black Rot", "condition_id": "grape.disease_fungal.black_rot", "key_differences": ["Black rot leaf spots are circular and tan with tiny black pycnidia (dots) inside, unlike Esca's interveinal stripes.", "Black rot causes entire berries to shrivel into hard, black 'mummies', whereas Esca causes distinct 'measles' spots on otherwise intact berries.", "Esca is a systemic wood-decaying disease; Black rot is primarily a foliar and fruit disease without internal trunk rot."]}, {"condition_name": "Pest Damage", "condition_id": "grape.pest.unspecified", "key_differences": ["Leafhopper damage causes stippling or angular yellowing, not the broad interveinal 'tiger stripes' of Esca.", "Mite damage may cause bronzing or yellowing and often includes fine webbing, which is absent in Esca.", "Pest damage does not cause internal wood decay, 'black measles' on fruit, or sudden vine apoplexy."]}, {"condition_name": "Downy Mildew", "condition_id": "grape.disease_fungal.downy_mildew", "key_differences": ["Downy mildew lesions are yellowish, oily-looking, angular spots, not the striped necrosis of Esca.", "In humid weather, downy mildew produces a distinct white, fuzzy fungal growth on the underside of leaf spots; Esca does not.", "Downy mildew primarily affects young, growing tissues, while Esca is a disease of mature, woody trunks and cordons."]}], "management": {"cultural": ["Practice delayed pruning (late winter/early spring) to allow for faster wound healing.", "Avoid making large pruning cuts, or protect them with a wound sealant.", "Sanitize pruning tools (e.g., with alcohol or bleach solution) between vines, especially after cutting infected wood.", "Remove and destroy dead vines or arms to reduce inoculum sources."], "biological": ["Application of Trichoderma-based bio-pesticides to fresh pruning wounds can help prevent colonization by pathogens."], "chemical": ["Use of registered fungicidal paints or sealants on large pruning wounds immediately after cutting.", "Some trunk-injected fungicides (e.g., phosphonates) are used with variable success to manage symptoms."], "notes": "Management is primarily preventative. There are no curative treatments for vines with established internal wood decay."}, "qa_seeds": {"verification_templates": ["Does this grape leaf show a striped pattern of necrosis between the veins?", "Are there small, dark purple specks on the grape berries?", "Is the leaf discoloration arranged in a 'tiger stripe' pattern?", "Can you confirm the presence of interveinal chlorosis and necrosis on the leaves?", "Is the vine showing signs of sudden wilting or dieback?"], "attribute_templates": ["What is the pattern of the symptoms on the leaves?", "Describe the appearance of the spots on the fruit.", "What part of the leaf is turning brown or yellow?", "Are the leaf symptoms circular spots or elongated stripes?", "Is there any sign of fungal growth on the leaf surface?", "How would you describe the health of the vine's woody structure (trunk/cordons)?"], "diagnosis_templates": ["What disease causes 'tiger stripes' on grape leaves and 'black measles' on fruit?", "Based on the interveinal necrosis and sudden wilting, what is the likely disease?", "A grape vine suddenly died in summer and its leaves look scorched between the veins. What is the diagnosis?"], "counterfactual_templates": ["If the leaf spots were oily and had white fuzz on the underside, what would the disease be instead of Esca?", "If the entire grape cluster had turned into black, hard mummies, what disease would it be?"], "severity_templates": ["How severe is the Esca if only a few leaves on one shoot are affected?", "Is the infection mild, moderate, or severe if an entire cordon is dead?", "Based on the widespread leaf symptoms and dieback, what is the severity of the Esca?"], "confounders": ["black_rot", "pest_damage", "downy_mildew"]}, "data_requirements": {"min_resolution_px": 768, "min_roi_fraction": 0.4, "lighting_notes": "Use diffuse, even lighting. Avoid hard shadows or direct sun glare that can obscure the subtle color changes in the interveinal areas.", "occlusion_notes": "The characteristic 'tiger stripe' pattern on at least one leaf should be fully visible. For fruit symptoms, ensure the 'measles' spots are not obscured by leaves or other berries."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T11:30:00Z", "updated_at": "2023-10-27T11:30:00Z", "sources": ["University of California IPM Pest Management Guidelines: Grapes", "APS Compendium of Grape Diseases, Disorders, and Pests", "General plant pathology extension publications from viticultural regions"]}}
+{"schema_version": "1.0.0", "disease_id": "grape.disease_fungal.isariopsis_leaf_spot", "aliases": ["angular leaf spot", "grapevine leaf spot"], "crop": {"common_name": "grape", "scientific_name": "Vitis spp.", "family": "Vitaceae"}, "condition": {"common_name": "isariopsis leaf spot", "scientific_name": "Pseudocercospora vitis", "alt_names": ["Isariopsis vitis"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Capnodiales", "family": "Mycosphaerellaceae", "genus": "Pseudocercospora", "species": "vitis"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["rain-splash", "wind"], "overwintering": ["infected fallen leaves", "lesions on dormant canes"]}, "environmental_risk": {"risk_factors": ["high humidity", "frequent rainfall", "poor air circulation in canopy", "warm temperatures"], "temp_c_day": [20, 30], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 8}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "<5% of leaf area affected on symptomatic leaves.", "moderate": "5-25% of leaf area affected, with some lesions coalescing.", "severe": ">25% of leaf area affected, often leading to premature yellowing and defoliation.", "notes": "Severity is assessed on individual, fully expanded leaves showing symptoms. For whole-plant assessment, consider the percentage of leaves showing symptoms."}, "symptoms": {"leaves": ["Initial lesions are small, dark brown to black spots on the upper leaf surface.", "Lesions enlarge to become irregular or angular, often bounded by leaf veins.", "Spots are typically dark brown, reddish-brown, or black throughout, lacking a distinct border.", "A faint yellow halo may surround some lesions.", "On the lower leaf surface, lesions appear as a sooty or dusty greyish-black patch.", "In severe cases, lesions may merge (coalesce) to form large necrotic areas.", "Infected leaves may turn yellow (chlorotic) and drop prematurely."], "stems": ["Elongated, dark brown to black lesions may appear on young shoots and petioles."], "fruit": ["Fruit infection is rare, but small, superficial dark flecks can occur on berries."], "roots": [], "whole_plant": ["Severe infections can cause significant defoliation, reducing vine vigor."], "signs_microscopic_or_visible": ["Visible sign is the characteristic sooty, dark grey to olive-brown fungal growth (conidiophores and conidia) on the underside of leaf lesions."]}, "lookalikes": [{"condition_name": "black rot", "condition_id": "grape.disease_fungal.black_rot", "key_differences": ["Black rot lesions are circular with a distinct dark brown border and a tan-to-light-brown center; Isariopsis spots are more uniformly dark and angular.", "Black rot lesions contain tiny, black, pimple-like structures (pycnidia) often arranged in a ring, which are absent in Isariopsis.", "Isariopsis produces a sooty grey-black growth on the lesion underside; black rot does not have this sign on leaf lesions."]}, {"condition_name": "downy mildew", "condition_id": "grape.disease_oomycete.downy_mildew", "key_differences": ["Downy mildew lesions begin as yellow, oily-looking spots on the upper leaf surface, while Isariopsis spots are dark brown/black from the start.", "Downy mildew produces a distinct, fluffy white fungal growth on the lesion underside in humid conditions, contrasting with the dark, sooty growth of Isariopsis.", "While both can be angular, the initial color and the sign on the leaf underside are primary differentiators."]}, {"condition_name": "anthracnose", "condition_id": "grape.disease_fungal.anthracnose", "key_differences": ["Anthracnose lesions are often called 'bird's-eye spots' with a sunken, greyish center and a raised, dark purplish-black border.", "Anthracnose lesions frequently cause a 'shot-hole' effect as the necrotic center falls out; this is uncommon for Isariopsis.", "Anthracnose causes more severe symptoms on shoots and berries, including distinct cankers and sunken spots, compared to the less common stem lesions of Isariopsis."]}], "management": {"cultural": ["Improve air circulation via proper pruning, trellising, and leaf removal.", "Practice good sanitation by removing and destroying fallen leaves and debris in the fall.", "Select planting sites with good sun exposure and air drainage to promote rapid drying of foliage."], "biological": ["Bio-fungicides containing *Bacillus subtilis* or *Trichoderma* species may provide some suppression when applied preventatively."], "chemical": ["Apply preventative fungicides, especially during periods of warm, wet weather.", "Fungicide classes such as strobilurins (FRAC 11), DMIs (FRAC 3), and broad-spectrum protectants like mancozeb (FRAC M3) are effective.", "Rotate fungicide chemistries to prevent resistance development."], "notes": "Management is often integrated with programs for other common fungal diseases like black rot and downy mildew."}, "qa_seeds": {"verification_templates": ["Does this grape leaf have dark, angular spots?", "Is there evidence of a fungal infection on this leaf?", "Can you see a sooty or dusty growth on the underside of the leaf spots?", "Are the lesions on the leaf bounded by the veins?", "Does this leaf show symptoms of Isariopsis leaf spot?"], "attribute_templates": ["What is the shape of the lesions on the leaf?", "What color are the spots?", "Is there any visible fungal growth on the underside of the leaf?", "Describe the border of the leaf spots.", "Are the spots circular or angular?", "Is there a halo around the lesions?"], "diagnosis_templates": ["What disease is causing these dark, angular spots on the grape leaf?", "Based on the sooty growth on the underside and angular lesions, what is the diagnosis?", "Is this Isariopsis leaf spot, black rot, or downy mildew?", "What is the most likely cause of these symptoms?"], "counterfactual_templates": ["If the spots had a tan center with tiny black dots, what disease would it be?", "If the growth on the underside of the leaf was fluffy and white, what disease would be more likely?", "What would this look like if it were anthracnose instead?"], "severity_templates": ["What percentage of this leaf's surface is affected by spots?", "How would you rate the severity of this Isariopsis leaf spot infection?", "Is this a mild or severe case of the disease?"], "confounders": ["black_rot", "downy_mildew", "anthracnose"]}, "data_requirements": {"min_resolution_px": 1024, "min_roi_fraction": 0.4, "lighting_notes": "Use diffuse, even lighting. Avoid hard shadows and overexposure, which can obscure lesion color and texture. An overcast day is ideal.", "occlusion_notes": "The primary symptomatic leaf should be clearly visible. If possible, provide images of both the upper (adaxial) and lower (abaxial) leaf surfaces, as the sign on the underside is diagnostic."}, "provenance": {"created_by": "Expert Plant Pathologist and VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["APS Compendium of Grape Diseases, Disorders, and Pests", "University extension viticulture and plant pathology guides", "Peer-reviewed plant pathology literature"]}}
+{"schema_version": "1.0.0", "disease_id": "orange.unknown.huanglongbing", "aliases": ["HLB", "citrus greening", "yellow dragon disease"], "crop": {"common_name": "orange", "scientific_name": "Citrus × sinensis", "family": "Rutaceae"}, "condition": {"common_name": "Huanglongbing", "scientific_name": "Candidatus Liberibacter asiaticus", "alt_names": ["HLB", "citrus greening disease"], "pathogen": {"type": "bacterium", "taxonomy": {"kingdom": "Bacteria", "phylum": "Pseudomonadota", "class": "Alphaproteobacteria", "order": "Rhizobiales", "family": "Rhizobiaceae", "genus": "Candidatus Liberibacter", "species": "asiaticus"}}}, "issue_type": "unknown", "transmission": {"vectors": ["Asian citrus psyllid (Diaphorina citri)", "African citrus psyllid (Trioza erytreae)"], "dispersal": ["Movement of infected plant material (grafting, nursery stock)", "Insect vector flight"], "overwintering": ["In infected citrus trees (perennial host)"]}, "environmental_risk": {"risk_factors": ["Presence of psyllid vectors", "Temperatures favorable for psyllid development and pathogen multiplication", "Proximity to infected groves"], "temp_c_day": [25, 32], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "One or a few branches show blotchy mottle symptoms; fruit may be asymptomatic or slightly misshapen.", "moderate": "Symptoms widespread on multiple limbs; significant leaf yellowing and drop; obvious fruit deformity and quality reduction.", "severe": "Canopy is thin and sparse; extensive twig dieback; most fruit are small, green, and unmarketable; tree is in severe decline.", "notes": "Severity reflects the systemic progression of the disease throughout the tree over time, not just the symptoms on a single leaf. HLB is a systemic disease, and severity is often assessed on a whole-plant basis."}, "symptoms": {"leaves": ["Asymmetrical, blotchy yellowing (mottling) that crosses leaf veins, not restricted by the midrib.", "Overall yellowing of leaves, resembling a nutrient deficiency, but with a non-symmetrical pattern.", "Veins may appear thickened and corky.", "Leaves may be smaller than normal and stand upright.", "Premature leaf drop leading to a thin canopy."], "stems": ["Twig and branch dieback as the disease progresses."], "fruit": ["Lopsided or misshapen fruit, often smaller than normal.", "Color inversion, where the stylar (blossom) end stays green while the stem end turns orange.", "Fruit remains hard and does not ripen properly.", "Seeds are small, dark, and aborted.", "Juice is bitter with low sugar content."], "roots": ["Root system decay and feeder root loss, which often precedes visible canopy symptoms."], "whole_plant": ["Stunted growth and overall decline.", "Sparse, thin canopy.", "Out-of-season or off-bloom flowering."], "signs_microscopic_or_visible": ["Presence of Asian citrus psyllid adults, nymphs, or their waxy tubules on new growth."]}, "lookalikes": [], "management": {"cultural": ["Remove and destroy infected trees (roguing) to eliminate inoculum sources.", "Use certified disease-free nursery stock for planting.", "Implement area-wide management programs to coordinate psyllid vector control."], "biological": ["Conservation and release of natural enemies of the psyllid vector (e.g., the parasitoid wasp Tamarixia radiata)."], "chemical": ["Coordinated insecticide applications targeting psyllid vectors, especially during flush periods.", "Application of enhanced nutritional programs to mitigate symptom expression and prolong productivity in infected trees."], "notes": "There is no cure for HLB. Management focuses on preventing new infections by controlling the insect vector and removing infected trees to reduce inoculum."}, "qa_seeds": {"verification_templates": ["Is there blotchy, asymmetrical yellowing on the leaves?", "Does the yellowing pattern cross the leaf veins?", "Are any of the fruit lopsided or smaller than normal?", "Does the fruit show color inversion, with the bottom staying green?", "Is there evidence of twig or branch dieback?", "Is the overall canopy of the tree thin or sparse?"], "attribute_templates": ["What is the pattern of yellowing on the leaf?", "Describe the shape of the fruit.", "What color is the stylar end of the orange?", "How would you describe the density of the tree's canopy?", "Are the leaf veins thickened or corky?", "Are the leaves smaller than normal or pointing upwards?"], "diagnosis_templates": ["Based on the asymmetrical blotchy mottle and lopsided fruit, what disease is affecting this orange tree?", "What is the likely cause of the thin canopy, twig dieback, and green, misshapen fruit?", "The leaves show yellowing that is not confined by the veins. What citrus disease is this characteristic of?"], "counterfactual_templates": ["If the yellowing was symmetrical along the midrib, would it still be Huanglongbing?", "What if the fruit were perfectly round and evenly colored but the leaves showed blotchy yellowing?"], "severity_templates": ["Based on the widespread dieback and sparse canopy, how severe is the Huanglongbing infection?", "Is the citrus greening infection mild, moderate, or severe?", "Does this tree show early or advanced symptoms of Huanglongbing?"], "confounders": []}, "data_requirements": {"min_resolution_px": 1024, "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse lighting is best. Avoid harsh shadows or direct sunlight that can wash out color variations in leaves.", "occlusion_notes": "Ensure symptomatic leaves and fruit are not obscured by healthy foliage. Images of the whole tree canopy are useful for severity assessment."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2024-05-16T11:00:00Z", "sources": ["University extension guides (e.g., UF/IFAS, UC ANR)", "APS Compendium of Citrus Diseases", "CABI Invasive Species Compendium"]}}
+{"schema_version": "1.0.0", "disease_id": "peach.disease_bacterial.bacterial_spot", "aliases": ["bacterial shot hole", "bacteriosis"], "crop": {"common_name": "Peach", "scientific_name": "Prunus persica", "family": "Rosaceae"}, "condition": {"common_name": "Bacterial Spot", "scientific_name": "Xanthomonas arboricola pv. pruni", "alt_names": ["Bacterial shot hole"], "pathogen": {"type": "bacterium", "taxonomy": {"kingdom": "Bacteria", "phylum": "Pseudomonadota", "class": "Gammaproteobacteria", "order": "Xanthomonadales", "family": "Xanthomonadaceae", "genus": "Xanthomonas", "species": "X. arboricola"}}}, "issue_type": "disease_bacterial", "transmission": {"vectors": [], "dispersal": ["Wind-driven rain", "Splashing water from irrigation", "Contaminated pruning tools"], "overwintering": ["In infected twigs as cankers", "Within dormant buds", "On fallen leaves and other plant debris"]}, "environmental_risk": {"risk_factors": ["High humidity", "Frequent or prolonged rainfall", "Warm temperatures", "Windy conditions that create small wounds on leaves"], "temp_c_day": [20, 30], "temp_c_night": [], "relative_humidity_pct": [80, 100], "leaf_wetness_hours_threshold": 6}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "< 5% of leaf area affected with spots. Minimal to no 'shot hole' effect or yellowing.", "moderate": "5-25% of leaf area affected, with noticeable 'shot hole' symptoms and some leaf yellowing (chlorosis).", "severe": "> 25% of leaf area affected, extensive 'shot hole' appearance, significant yellowing, and premature defoliation.", "notes": "Severity on fruit can be assessed by lesion count or percent surface area affected. Defoliation is a key indicator of severe infection pressure."}, "symptoms": {"leaves": ["Small, angular, water-soaked spots appear, primarily on the underside of leaves.", "Lesions become purplish-black or dark brown, often with a slightly lighter center.", "Spots are frequently delimited by leaf veins, resulting in an angular shape.", "The necrotic center of a lesion dries and falls out, creating a characteristic 'shot hole' appearance.", "Infected leaves turn yellow, starting from the tip and progressing downward, before dropping prematurely."], "stems": ["Dark, sunken, circular to elliptical cankers form on first-year twigs (spring cankers).", "Black tip dieback can occur on severely infected new shoots.", "Gummy sap (gummosis) may exude from twig cankers during wet periods."], "fruit": ["Small, circular, sunken, olive-green to dark brown spots develop on the fruit surface.", "Fruit lesions are often concentrated on the windward side of the fruit.", "Lesions may crack or pit as the fruit expands.", "A gummy substance may ooze from fruit lesions."], "roots": [], "whole_plant": [], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "Healthy", "condition_id": "peach.healthy.healthy", "key_differences": ["Healthy leaves are uniformly green and fully intact, lacking any spots, holes, or yellowing.", "Healthy fruit has smooth, unblemished skin without any sunken pits, cracks, or lesions.", "Healthy stems and twigs have smooth bark without dark, sunken cankers or gummosis."]}], "management": {"cultural": ["Plant resistant or tolerant peach varieties.", "Prune trees to promote good air circulation and faster drying of foliage.", "Remove and destroy infected twigs and cankers during dormant pruning.", "Avoid overhead irrigation to minimize leaf wetness duration.", "Maintain tree vigor with proper fertilization and watering, as stressed trees are more susceptible."], "biological": ["Some commercial products containing *Bacillus subtilis* or other beneficial microbes may offer limited suppression when applied preventatively."], "chemical": ["Apply fixed copper sprays during dormancy to reduce overwintering inoculum.", "Use bactericides containing oxytetracycline or other approved compounds during the growing season, starting from shuck split.", "Rotate chemical classes to prevent the development of bacterial resistance."], "notes": "Chemical spray timing is critical and should be guided by weather forecasts, focusing on protecting foliage and fruit during warm, wet periods."}, "qa_seeds": {"verification_templates": ["Does this leaf have angular, dark spots bordered by veins?", "Are there holes in this leaf that look like a 'shot hole' pattern?", "Is this peach fruit showing small, dark, sunken pits?", "Do you see evidence of premature yellowing and leaf drop on this branch?", "Are there dark, sunken cankers on the young green twigs?", "Is there a gummy substance oozing from spots on the fruit or twigs?"], "attribute_templates": ["What is the shape of the spots on the leaves?", "What color are the leaf lesions?", "Describe the appearance of the spots on the fruit.", "What is happening to the center of the dark spots on the leaves?", "Is the leaf yellowing uniform or does it start at the tip?", "Where on the fruit are the spots most concentrated?"], "diagnosis_templates": ["Based on the angular leaf spots and shot-hole symptoms, what disease is this?", "What bacterial disease causes sunken spots on peach fruit and premature defoliation?", "The combination of twig cankers, angular leaf spots, and pitted fruit suggests what condition?"], "counterfactual_templates": ["If the spots on the leaf were fuzzy and grey, would it still be bacterial spot?", "If the leaf spots were powdery and white, could this be bacterial spot?"], "severity_templates": ["What percentage of this leaf's surface is covered in lesions?", "Based on the amount of leaf drop and shot-holing, would you classify this infection as mild, moderate, or severe?", "How many lesions are visible on this single fruit?"], "confounders": ["healthy"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.25, "lighting_notes": "Use diffuse, even lighting. Avoid harsh shadows or overexposure which can obscure the water-soaked appearance of early lesions or the dark color of mature ones.", "occlusion_notes": "Ensure the symptomatic leaf, fruit, or twig is clearly visible and not significantly obscured by other leaves or branches. Multiple angles are beneficial."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2024-05-22T10:00:00Z", "updated_at": "2024-05-22T10:00:00Z", "sources": ["University extension guides for stone fruit pathology", "APS Compendium of Stone Fruit Diseases", "Peer-reviewed plant pathology literature"]}}
+{"schema_version": "1.0.0", "disease_id": "peach.healthy.healthy", "aliases": ["Normal peach", "Asymptomatic peach", "Unaffected peach"], "crop": {"common_name": "Peach", "scientific_name": "Prunus persica", "family": "Rosaceae"}, "condition": {"common_name": "Healthy", "scientific_name": null, "alt_names": ["Normal", "Asymptomatic"], "pathogen": {"type": "none", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "healthy", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Optimal sunlight exposure (full sun)", "Good air circulation through the canopy", "Well-drained soil to prevent root stress", "Balanced nutrition and appropriate soil pH", "Sufficient and regular watering without waterlogging"], "temp_c_day": [24, 29], "temp_c_night": [15, 21], "relative_humidity_pct": [50, 70], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Not applicable.", "moderate": "Not applicable.", "severe": "Not applicable.", "notes": "Severity is not applicable for a healthy condition. The plant is considered healthy if it exhibits no visible signs of disease, pest damage, or significant abiotic stress."}, "symptoms": {"leaves": ["Uniformly green color, consistent with the cultivar.", "No spots, lesions, discoloration, or necrosis.", "Leaves are fully expanded, turgid, and have a smooth surface.", "No evidence of puckering, curling, or distortion.", "Petioles are firm and securely attached to the stem."], "stems": ["Current season's growth is vigorous with smooth, appropriately colored bark.", "No cankers, gummosis (oozing sap), cracks, or swelling.", "Buds appear well-formed and viable."], "fruit": ["Skin is smooth (may have natural fuzz) and unblemished.", "Color is uniform and appropriate for the cultivar and stage of maturity.", "No spots, cracks, sunken areas, or signs of rot."], "roots": [], "whole_plant": ["Exhibits a vigorous, well-structured growth habit.", "A dense, full canopy of leaves is present during the growing season."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "Bacterial Spot", "condition_id": "peach.bacterial.bacterial_spot", "key_differences": ["Healthy leaves are uniformly green, whereas bacterial spot causes small, angular, water-soaked lesions that turn dark purple or black.", "With bacterial spot, the center of leaf lesions often falls out, creating a 'shot-hole' appearance, which is absent in healthy leaves.", "Healthy fruit skin is smooth and unblemished, while bacterial spot causes small, circular, pitted lesions on the fruit surface, sometimes with cracking.", "Bacterial spot can cause twig dieback and cankers on young shoots, which are not present on healthy stems."]}], "management": {"cultural": ["Planting in sites with full sun, good air circulation, and well-drained soil.", "Implementing a balanced fertilizer program based on soil testing.", "Pruning annually during dormancy to maintain an open canopy structure.", "Providing consistent irrigation, especially during dry periods, to avoid plant stress.", "Practicing orchard sanitation, such as removing fallen leaves and mummified fruit."], "biological": [], "chemical": [], "notes": "Management for a healthy plant focuses on proactive cultural practices that promote vigor and minimize environmental stress, making the plant less susceptible to future infections."}, "qa_seeds": {"verification_templates": ["Is this a healthy peach plant?", "Does this image show a peach leaf with no signs of disease?", "Are the leaves on this branch uniformly green and free of spots?", "Is the fruit in the image unblemished and appearing healthy?", "Can you confirm this peach stem is free of cankers or damage?"], "attribute_templates": ["What color are the leaves?", "Describe the texture of the leaf surface.", "Are there any holes, spots, or lesions on the leaves?", "Describe the appearance of the fruit's skin.", "Are the leaf margins smooth or are they curled or distorted?", "Is there any sign of sap oozing from the stem?"], "diagnosis_templates": ["What is the health status of the peach in this image?", "Based on the unblemished leaves and fruit, what condition is this plant in?", "Is there any evidence of a pathogen on this plant?", "Diagnose the condition of the peach branch shown."], "counterfactual_templates": ["If this leaf had small, black, angular spots that fell out, what disease might it have?", "What would you see on the fruit if this plant had bacterial spot instead of being healthy?"], "severity_templates": ["What is the severity of the condition shown?", "How would you rate the health of this plant on a scale from healthy to severe?", "Are there any symptoms visible on the plant?"], "confounders": ["bacterial_spot"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse lighting is ideal. Avoid hard shadows, glare, or overexposure that could mask subtle textures or be mistaken for discoloration.", "occlusion_notes": "The plant part of interest (leaf, stem, fruit) should be largely free of occlusion from other plant parts, hands, or background objects."}, "provenance": {"created_by": "VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2024-05-21T10:00:00Z", "updated_at": "2024-05-21T10:00:00Z", "sources": ["General university extension guides for peach cultivation", "APS Compendium of Stone Fruit Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "pepper.disease_bacterial.bacterial_spot", "aliases": ["bacterial leaf spot", "scab", "BLS"], "crop": {"common_name": "pepper", "scientific_name": "Capsicum annuum", "family": "Solanaceae"}, "condition": {"common_name": "bacterial spot", "scientific_name": "Xanthomonas spp. complex", "alt_names": ["Xanthomonas euvesicatoria", "Xanthomonas vesicatoria", "Xanthomonas perforans", "Xanthomonas gardneri"], "pathogen": {"type": "disease_bacterial", "taxonomy": {"kingdom": "Bacteria", "phylum": "Proteobacteria", "class": "Gammaproteobacteria", "order": "Xanthomonadales", "family": "Xanthomonadaceae", "genus": "Xanthomonas", "species": ""}}}, "issue_type": "disease_bacterial", "transmission": {"vectors": ["human activity (tools, hands)"], "dispersal": ["rain splash", "wind-driven rain", "overhead irrigation", "infected seed", "infected transplants"], "overwintering": ["infected plant debris", "volunteer pepper plants", "infected seeds", "solanaceous weeds"]}, "environmental_risk": {"risk_factors": ["high humidity", "frequent rainfall", "warm temperatures", "overhead irrigation", "dense plant canopy"], "temp_c_day": [24, 30], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 4}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "< 5% of leaf area affected; few, scattered lesions on some leaves.", "moderate": "5-25% of leaf area affected; multiple lesions per leaf, some yellowing or minor leaf drop.", "severe": "> 25% of leaf area affected; extensive lesion coalescence, significant chlorosis, defoliation, and fruit lesions.", "notes": "Severity is assessed on the most affected leaves. Fruit lesions should also be considered in a whole-plant assessment."}, "symptoms": {"leaves": ["Small, water-soaked, circular to irregular spots (1-3 mm), often appearing first on lower surfaces.", "Lesions become dark brown to black, with a greasy appearance.", "Lesion centers may dry out, turn light tan or gray, and sometimes drop out, creating a 'shot-hole' effect.", "A distinct yellow halo often surrounds newer lesions, which can fade with age.", "Severe infections cause leaves to turn yellow (chlorosis) and drop prematurely, starting from the plant base."], "stems": ["Elongated, dark brown to black, slightly raised lesions or streaks can appear on stems and petioles."], "fruit": ["Small, circular, raised, scab-like spots (up to 6 mm) appear on green fruit.", "Fruit lesions are initially water-soaked, then turn brown to black with a cracked, warty, or rough texture.", "Lesions are typically raised and do not have concentric rings or ooze."], "roots": [], "whole_plant": ["Stunted growth and significant defoliation in severe cases, especially from the lower canopy upwards."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "anthracnose", "condition_id": "pepper.disease_fungal.anthracnose", "key_differences": ["Anthracnose fruit lesions are sunken and circular with concentric rings and salmon-colored spore masses; bacterial spot lesions are raised, scab-like, and lack rings.", "Anthracnose leaf spots are often larger and tan, while bacterial spot lesions are small, dark, and greasy-looking.", "Anthracnose is a soft rot on fruit, whereas bacterial spot lesions are hard and scabby."]}], "management": {"cultural": ["Use certified disease-free seed and transplants.", "Rotate crops away from solanaceous plants for at least 2-3 years.", "Promote air circulation via proper plant spacing and pruning.", "Avoid overhead irrigation; use drip irrigation instead.", "Sanitize tools, stakes, and equipment between plants or rows.", "Remove and destroy infected plant debris post-harvest."], "biological": ["Application of bacteriophage-based products.", "Preventative sprays of beneficial microbes like *Bacillus subtilis* strains."], "chemical": ["Preventative applications of fixed copper bactericides (e.g., copper hydroxide).", "Tank-mixing copper with mancozeb to improve efficacy and manage resistance.", "Use of plant activators like acibenzolar-S-methyl (ASM) to boost plant defenses before infection."], "notes": "Chemical control is most effective when used preventatively. Copper resistance is widespread in many Xanthomonas populations, limiting its effectiveness."}, "qa_seeds": {"verification_templates": ["Are there small, dark, greasy-looking spots on this pepper leaf?", "Does this pepper fruit have a raised, scab-like, brown or black lesion?", "Are the spots on the leaf surrounded by a yellow halo?", "Are the lower leaves of the plant turning yellow and falling off?", "Do the spots on the leaf have a 'shot-hole' appearance where the center has fallen out?", "Are the lesions on the fruit raised and warty, rather than sunken?"], "attribute_templates": ["What color are the spots on the leaf?", "What is the texture of the lesion on the fruit?", "Describe the border of the leaf spot.", "Where on the plant is leaf drop most severe?", "What shape are the spots on the leaves?", "Are the spots on the fruit sunken or raised?"], "diagnosis_templates": ["The pepper leaves have small, dark, water-soaked spots with yellow halos, and the fruit has raised, scab-like lesions. What is the problem?", "My pepper plants are losing their lower leaves, which are covered in small, dark brown spots. What disease is this?", "Based on the raised, warty spots on this pepper fruit, what bacterial disease is likely present?"], "counterfactual_templates": ["If the spots on the fruit were sunken and had concentric rings, what would the disease be instead?", "If the leaf spots had a distinct white center and a dark border, what disease might it be?", "If the plant was wilting rapidly and had a large, dark canker at the soil line, what would be the likely cause?"], "severity_templates": ["What percentage of this leaf's surface area is covered by dark spots?", "How would you rate the severity of bacterial spot on this plant: mild, moderate, or severe?", "Is there significant leaf drop (defoliation) visible on the lower half of the plant?"], "confounders": ["anthracnose", "spot", "blight"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Even, diffuse lighting is preferred. Avoid harsh shadows or direct sunlight that can obscure lesion details like water-soaking or halos.", "occlusion_notes": "The primary symptoms (leaf spots, fruit lesions) should be clearly visible and not obscured by other leaves, branches, or debris."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Peer Pathologist", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["APS Compendium of Pepper Diseases", "University Extension Plant Disease Guides", "CABI Invasive Species Compendium"]}}
+{"schema_version": "1.0.0", "disease_id": "pepper.healthy.healthy", "aliases": ["normal pepper", "unaffected pepper plant"], "crop": {"common_name": "pepper", "scientific_name": "Capsicum annuum", "family": "Solanaceae"}, "condition": {"common_name": "healthy", "scientific_name": null, "alt_names": ["normal", "unaffected"], "pathogen": {"type": "physiological", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "healthy", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Optimal growing conditions", "Absence of pests and pathogens", "Balanced nutrition", "Adequate watering"], "temp_c_day": [21, 29], "temp_c_night": [16, 21], "relative_humidity_pct": [50, 70], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Not applicable", "moderate": "Not applicable", "severe": "Not applicable", "notes": "Severity is not applicable for a healthy plant. The plant either meets the criteria for 'healthy' or it does not. Any deviation would be classified as a disorder, deficiency, or disease."}, "symptoms": {"leaves": ["Uniformly green color, appropriate for the cultivar.", "Leaves are turgid, fully expanded, and well-formed.", "No spots, lesions, yellowing (chlorosis), or browning (necrosis).", "No curling, crinkling, or distortion of leaf margins.", "Surfaces are smooth and free of powdery residue or sticky honeydew."], "stems": ["Stems are firm, upright, and green to slightly woody at the base.", "No cankers, lesions, or dark streaks."], "fruit": ["Fruit has a uniform, vibrant color appropriate for the cultivar and stage of maturity.", "Skin is smooth, firm, and unblemished.", "No soft spots, sunken lesions, or signs of rot.", "Calyx (cap) is green and fresh-looking."], "roots": ["Roots are white to cream-colored and fibrous (if visible)."], "whole_plant": ["Vigorous, upright growth habit.", "Appears well-hydrated and robust.", "Actively produces flowers and sets fruit according to its developmental stage."], "signs_microscopic_or_visible": ["No visible pests (e.g., aphids, mites, thrips).", "No fungal growth (e.g., mycelium, spores)."]}, "lookalikes": [{"condition_name": "bacterial_spot", "condition_id": "pepper.bacterial.bacterial_spot", "key_differences": ["Healthy leaves are uniformly green; bacterial spot leaves have small, dark, water-soaked spots, often with a yellow halo.", "Healthy leaf surfaces are smooth; bacterial spot lesions can feel slightly raised or scabby.", "Healthy fruit is unblemished; bacterial spot causes small, raised, scabby spots on fruit."]}, {"condition_name": "mites", "condition_id": "pepper.pest.mites", "key_differences": ["Healthy leaves have a normal green color; mite damage causes fine stippling (tiny yellow/white dots) and can lead to a bronzed appearance.", "Healthy leaves are smooth; mite infestations may show fine webbing, especially on the underside of leaves.", "Healthy leaves are flat and well-formed; heavy mite pressure can cause slight upward curling or distortion."]}, {"condition_name": "virus", "condition_id": "pepper.viral.virus", "key_differences": ["Healthy leaves have a uniform green color; virus-infected leaves often show mosaic patterns or mottling (light/dark green patches).", "Healthy leaves have a normal shape; viruses can cause severe distortion, crinkling, or a 'shoestring' appearance.", "Healthy plants have vigorous growth; virus-infected plants are often stunted."]}], "management": {"cultural": ["Provide consistent and appropriate watering to avoid stress.", "Ensure well-drained soil and adequate plant spacing for air circulation.", "Use balanced fertilizer according to soil tests and plant needs.", "Rotate crops annually, avoiding other Solanaceae family members.", "Practice good field sanitation, removing weeds and crop debris."], "biological": ["Use certified disease-free seeds and transplants.", "Encourage beneficial insects by planting diverse companion flowers."], "chemical": ["Not applicable for maintaining health; chemical use is preventative or curative for specific problems."], "notes": "Management for a healthy plant focuses on preventative care and providing optimal growing conditions to minimize stress and prevent disease onset."}, "qa_seeds": {"verification_templates": ["Is this pepper plant healthy?", "Does this plant show any signs of disease or pest damage?", "Are the leaves and fruit on this pepper plant free from blemishes?", "Can you confirm that this is a normal, unaffected pepper plant?", "Is there anything wrong with this plant?"], "attribute_templates": ["What color are the leaves?", "Are there any spots or lesions on the fruit?", "Describe the texture of the leaf surface.", "Is the plant wilting or upright?", "Are the leaves uniformly colored?", "Describe the shape of the leaves.", "Is there any visible pest or fungal growth?"], "diagnosis_templates": ["What is the condition of this pepper plant?", "Why does this plant look so good?", "Diagnose the health status of this plant."], "counterfactual_templates": ["What would this leaf look like if it had bacterial spot?", "If this plant were infested with mites, how would its leaves be different?", "How would the fruit appear if it had anthracnose?"], "severity_templates": ["How severe is the condition on this plant?", "What is the level of damage on this leaf?", "Is this plant healthy or diseased?"], "confounders": ["bacterial_spot", "mites", "virus"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse lighting is preferred. Avoid harsh shadows or direct, overexposing sunlight that can obscure color and texture details.", "occlusion_notes": "The key plant parts (leaves, stems, visible fruit) should be largely unobstructed. Minimal overlap between leaves is acceptable."}, "provenance": {"created_by": "expert plant pathologist", "reviewed_by": "VQA dataset designer", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["General university extension guides for pepper cultivation", "APS Compendium of Pepper Diseases", "Standard horticultural best practices"]}}
+{"schema_version": "1.0.0", "disease_id": "potato.disease_fungal.early_blight", "aliases": ["target spot", "alternaria blight"], "crop": {"common_name": "potato", "scientific_name": "Solanum tuberosum", "family": "Solanaceae"}, "condition": {"common_name": "early blight", "scientific_name": "Alternaria solani", "alt_names": ["target spot"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Pleosporales", "family": "Pleosporaceae", "genus": "Alternaria", "species": "solani"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["wind", "rain splash", "irrigation water", "infected equipment"], "overwintering": ["infected plant debris", "soil", "infected tubers", "solanaceous weeds"]}, "environmental_risk": {"risk_factors": ["high humidity", "frequent rainfall or overhead irrigation", "plant stress (e.g., nutrient deficiency, insect damage)", "older, senescing leaves"], "temp_c_day": [24, 29], "temp_c_night": [], "relative_humidity_pct": [90, 100], "leaf_wetness_hours_threshold": 9}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "< 5% of total foliage area affected by lesions.", "moderate": "5-25% of total foliage area affected, some leaf yellowing and minor defoliation.", "severe": "> 25% of total foliage area affected, significant defoliation, stem lesions present, reduced plant vigor.", "notes": "Severity is assessed by estimating the percentage of the total plant canopy showing symptoms, not just a single leaf. This metric is practical for image labeling and is used in disease forecasting."}, "symptoms": {"leaves": ["Small, dark brown to black spots, initially on lower, older leaves.", "Lesions enlarge into circular or irregular shapes, often up to 1.5 cm in diameter.", "Classic 'target spot' or 'bull's-eye' pattern with concentric rings within the lesion.", "A distinct yellow halo often surrounds the dark lesion.", "Lesions can merge, causing large blighted areas.", "Affected leaves turn yellow, wither, and eventually die, but often remain attached to the plant."], "stems": ["Dark, sunken, and elongated lesions can form on stems, sometimes with concentric rings.", "Stem lesions can girdle the plant, especially near the soil line (collar rot on seedlings)."], "fruit": ["Tubers develop dark, circular to irregular, slightly sunken lesions on the surface.", "The underlying tuber flesh is dry, leathery, or corky and brownish in color.", "Tuber lesions are usually sharply defined from healthy tissue."], "roots": [], "whole_plant": ["Premature defoliation, starting from the bottom of the plant and moving upwards.", "Reduced plant vigor and overall stunting in severe cases."], "signs_microscopic_or_visible": ["In humid conditions, a velvety, dark brown or black sporulation may be visible on the surface of lesions with a hand lens."]}, "lookalikes": [{"condition_name": "late blight", "condition_id": "potato.disease_fungal.late_blight", "key_differences": ["Late blight lesions are water-soaked and irregular with fuzzy white mold on the leaf underside; early blight lesions are dry with distinct concentric rings.", "Early blight lesions have a sharp, defined border and a yellow halo; late blight lesions have an indistinct, pale green border.", "Early blight prefers warmer temperatures and affects lower leaves first; late blight thrives in cool, moist conditions and can appear anywhere on the plant.", "Late blight causes a rapid, wet rot of the entire plant; early blight progresses more slowly, causing gradual defoliation."]}, {"condition_name": "healthy", "condition_id": "potato.healthy", "key_differences": ["Healthy leaves are uniformly green without any spots, lesions, or yellowing halos.", "Healthy stems are green and turgid, lacking any dark, sunken, or elongated lesions.", "Healthy plants exhibit a full, vigorous canopy appropriate for their developmental stage."]}], "management": {"cultural": ["Use certified disease-free seed tubers.", "Practice crop rotation with non-solanaceous crops for at least 2-3 years.", "Maintain adequate plant nutrition to reduce stress.", "Promote good air circulation through proper plant spacing and weed control.", "Remove and destroy infected plant debris after harvest.", "Avoid overhead irrigation or time it to allow foliage to dry quickly."], "biological": ["Application of bio-fungicides containing *Bacillus subtilis* can suppress pathogen growth."], "chemical": ["Apply preventative fungicides before disease onset, especially when weather is favorable.", "Use curative fungicides with different modes of action (e.g., chlorothalonil, mancozeb, azoxystrobin, pyraclostrobin) to manage disease and prevent resistance.", "Follow local extension recommendations for timing and product selection."], "notes": "An integrated pest management (IPM) approach is most effective, combining cultural practices, resistant varieties (if available), and judicious fungicide use based on disease forecasting models."}, "qa_seeds": {"verification_templates": ["Is there a dark, circular spot on this potato leaf?", "Does the lesion on the leaf show a 'bull's-eye' or target-like pattern?", "Can you see a yellow halo surrounding the dark spot on the leaf?", "Are the spots primarily located on the lower, older leaves of the plant?", "Is there a dark, sunken lesion on the stem?", "Are the leaves turning yellow and dying from the bottom of the plant up?"], "attribute_templates": ["What is the shape of the lesion on the leaf?", "What color is the border around the dark spot?", "Describe the pattern inside the leaf spot.", "Where on the plant are the symptoms most visible?", "What is the texture of the lesion?", "Are the affected leaves dry and brittle or wet and mushy?"], "diagnosis_templates": ["Based on the target-like spots with yellow halos, what disease is affecting this potato plant?", "What fungal disease is characterized by concentric rings in lesions on potato leaves?", "Is this potato plant infected with early blight?"], "counterfactual_templates": ["If the spots had a fuzzy white growth on the underside, would it still be early blight?", "If the lesions were water-soaked and lacked concentric rings, what other disease might it be?", "If the plant were completely green and spotless, what would its condition be?"], "severity_templates": ["What percentage of the total leaf area on this plant is covered in lesions?", "How would you rate the severity of this early blight infection: mild, moderate, or severe?", "Is the defoliation on this plant minor or significant?"], "confounders": ["late_blight"]}, "data_requirements": {"min_resolution_px": 480, "min_roi_fraction": 0.25, "lighting_notes": "Diffuse, even lighting is preferred. Avoid harsh shadows or direct sunlight which can obscure lesion details like halos and concentric rings.", "occlusion_notes": "The primary lesion(s) should be clearly visible and not significantly obscured by other leaves, stems, or debris."}, "provenance": {"created_by": "AI Plant Pathologist", "reviewed_by": "AI VQA Dataset Designer", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University Extension Plant Pathology Guides", "APS Compendium of Potato Diseases", "General Plant Pathology Textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "potato.healthy.healthy", "aliases": ["normal potato", "unaffected potato", "disease-free potato"], "crop": {"common_name": "potato", "scientific_name": "Solanum tuberosum", "family": "Solanaceae"}, "condition": {"common_name": "healthy", "scientific_name": "", "alt_names": ["normal", "unaffected"], "pathogen": {"type": "none", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "healthy", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Optimal growing conditions: adequate sunlight, well-drained soil, and consistent moisture."], "temp_c_day": [18, 24], "temp_c_night": [12, 15], "relative_humidity_pct": [70, 90], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Not applicable. Plant is healthy.", "moderate": "Not applicable. Plant is healthy.", "severe": "Not applicable. Plant is healthy.", "notes": "This is a binary classification; the plant is either healthy or it is not. Severity metrics apply to disease or disorder conditions."}, "symptoms": {"leaves": ["Uniformly green color, which may vary from light to dark green depending on the cultivar.", "Leaves are fully expanded, turgid, and appropriately sized for the growth stage.", "No spots, lesions, discoloration, or necrosis.", "Leaf margins are smooth and intact, without curling, crinkling, or distortion.", "No yellow halos or water-soaked areas are present."], "stems": ["Stems are sturdy, upright, and green.", "No cankers, lesions, streaks, or wilting is visible.", "Internodes are of a normal length for the cultivar."], "fruit": [], "roots": [], "whole_plant": ["Exhibits vigorous, upright growth.", "Canopy is dense and full, consistent with the plant's age and variety.", "No general stunting, wilting, or dieback is observed."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "Early Blight", "condition_id": "potato.fungal.early_blight", "key_differences": ["Healthy leaves are uniformly green, whereas early blight causes dark brown to black lesions, often with a 'target spot' or concentric ring pattern.", "Early blight lesions are typically surrounded by a distinct yellow halo, which is absent on healthy leaves.", "Healthy leaves are intact, while leaves with early blight become brittle, and severe infections cause lower leaves to senesce and drop prematurely."]}, {"condition_name": "Late Blight", "condition_id": "potato.oomycete.late_blight", "key_differences": ["Healthy leaves are dry and uniformly colored; late blight lesions are large, dark green to black, and often have a water-soaked or greasy appearance.", "The underside of healthy leaves is clean, whereas late blight lesions may show a fuzzy, white mold (sporangia) at the lesion margin in humid conditions.", "Healthy stems are firm and green; late blight can cause large, dark brown or black lesions on stems that can girdle and kill them.", "Healthy plants do not have a distinct odor, while fields with severe late blight can have a noticeable decaying vegetation smell."]}], "management": {"cultural": ["Plant certified seed potatoes to ensure a disease-free start.", "Practice crop rotation with non-solanaceous crops (e.g., grains, legumes) for 2-3 years.", "Ensure proper plant spacing to promote air circulation and rapid drying of foliage.", "Manage irrigation to avoid prolonged leaf wetness, preferably using drip irrigation or watering early in the day."], "biological": [], "chemical": ["Use preventative fungicide applications only when disease risk is high based on weather forecasting and scouting, not as a routine practice for healthy plants."], "notes": "Management for a healthy crop focuses on maintaining optimal growing conditions and preventing the introduction and spread of pathogens."}, "qa_seeds": {"verification_templates": ["Is this potato plant healthy?", "Does this plant show any signs of disease or stress?", "Are the leaves on this plant free of spots, lesions, or yellowing?", "Can you confirm this is a normal, unaffected potato plant?", "Is the coloration of the leaves uniform?"], "attribute_templates": ["Describe the color of the leaves.", "Are there any markings on the stems?", "What is the overall growth habit of the plant?", "Are the leaves turgid or wilting?", "Do you see any yellow halos on the leaves?", "Is there any fuzzy growth on the underside of the leaves?"], "diagnosis_templates": ["What is the condition of this potato plant?", "Why does this plant look normal?", "Is there anything wrong with this plant?"], "counterfactual_templates": ["What would this leaf look like if it had early blight?", "If this plant were infected with late blight, what signs might be visible on the leaves or stems?", "How would the color of these leaves change if the plant had a nitrogen deficiency?"], "severity_templates": ["What is the health status of this plant?", "Is this plant showing any symptoms of disease?", "On a scale from healthy to severely diseased, how would you rate this plant?"], "confounders": ["early_blight", "late_blight"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse lighting is optimal. Avoid hard shadows, direct glare, or overexposure which can wash out color and hide subtle textures.", "occlusion_notes": "The plant, particularly a representative sample of upper and lower leaves, should be clearly visible with minimal occlusion from other plants, weeds, or debris."}, "provenance": {"created_by": "AI Plant Pathologist", "reviewed_by": "VQA Dataset Designer", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["General university extension guides for potato production", "APS Compendium of Potato Diseases, Second Edition"]}}
+{"schema_version": "1.0.0", "disease_id": "potato.disease_fungal.late_blight", "aliases": ["potato blight", "Irish potato famine disease"], "crop": {"common_name": "potato", "scientific_name": "Solanum tuberosum", "family": "Solanaceae"}, "condition": {"common_name": "late blight", "scientific_name": "Phytophthora infestans", "alt_names": ["potato blight"], "pathogen": {"type": "disease_oomycete", "taxonomy": {"kingdom": "Stramenopila", "phylum": "Oomycota", "class": "Oomycetes", "order": "Peronosporales", "family": "Peronosporaceae", "genus": "Phytophthora", "species": "P. infestans"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["wind", "rain splash", "irrigation water", "contaminated equipment"], "overwintering": ["infected seed tubers", "cull piles", "volunteer plants"]}, "environmental_risk": {"risk_factors": ["High humidity", "Cool temperatures", "Prolonged leaf wetness", "Dense canopy"], "temp_c_day": [15, 21], "temp_c_night": [10, 15], "relative_humidity_pct": [90, 100], "leaf_wetness_hours_threshold": 10}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area affected; a few scattered lesions.", "moderate": "11-40% of leaf area affected; multiple lesions coalescing, some stem lesions may be present.", "severe": ">40% of leaf area affected; extensive blighting, defoliation, and stem collapse.", "notes": "Severity is assessed on the total foliar area of the plant. Stem and tuber infection should be noted separately but contribute to the overall plant health decline."}, "symptoms": {"leaves": ["Small, water-soaked, pale green to dark green spots, often near leaf tips or edges.", "Lesions rapidly enlarge into large, irregular, brownish-black necrotic areas.", "A pale green or yellowish halo often surrounds the necrotic lesion.", "Infected leaves quickly wither, curl, and die but often remain attached to the stem."], "stems": ["Large, dark brown to black, greasy-appearing lesions can form on stems and petioles.", "Stems can become brittle and break at the site of infection."], "fruit": [], "roots": ["On tubers, symptoms appear as firm, reddish-brown, dry rot that penetrates the surface.", "The rot extends irregularly into the tuber flesh, often with a granular texture.", "The skin over infected areas may appear sunken and purplish."], "whole_plant": ["Rapid blighting and collapse of foliage, especially in cool, wet weather.", "A distinct, musty odor is often present in severely infected fields."], "signs_microscopic_or_visible": ["Under humid conditions, a fuzzy, white mold (sporangia) appears on the underside of leaves at the lesion margin."]}, "lookalikes": [{"condition_name": "early blight", "condition_id": "potato.disease_fungal.early_blight", "key_differences": ["Early blight lesions are circular with distinct, dark concentric rings ('target spots'), whereas late blight lesions are irregular and initially water-soaked.", "Late blight produces a white, fuzzy mold on the underside of leaves in high humidity; early blight does not.", "Early blight lesions are typically dry and leathery, while late blight lesions are blighted and can appear greasy or wet.", "Early blight often starts on lower, older leaves, while late blight can start anywhere on the plant."]}, {"condition_name": "healthy", "condition_id": "potato.healthy", "key_differences": ["Healthy leaves are uniformly green and turgid, without any necrotic spots, water-soaking, or halos.", "Healthy stems are green and strong, lacking any dark brown or black lesions.", "No white, fuzzy mold is present on any part of a healthy plant."]}], "management": {"cultural": ["Use certified disease-free seed tubers.", "Destroy cull piles and volunteer potatoes.", "Promote good air circulation through proper plant spacing.", "Avoid overhead irrigation, or irrigate early in the day to allow foliage to dry."], "biological": ["Application of bio-fungicides containing *Bacillus subtilis* or *Trichoderma* species can have some suppressive effect when used preventatively."], "chemical": ["Prophylactic and curative fungicide applications are the primary control method.", "Use forecasting models (e.g., Blitecast) to time applications effectively.", "Rotate fungicide modes of action to prevent resistance development."], "notes": "Management relies heavily on preventative fungicide sprays, timed according to weather-based disease prediction models. Resistant cultivars are a key component of an integrated management strategy."}, "qa_seeds": {"verification_templates": ["Is there a large, irregular, brownish-black lesion on the leaf?", "Can you see a fuzzy white growth on the underside of the leaf, near the edge of a dark spot?", "Does the leaf look water-soaked and blighted?", "Are there dark, greasy-looking lesions on the stem?", "Does the plant appear to be rapidly dying back?"], "attribute_templates": ["What color is the lesion on the leaf?", "What is the shape of the necrotic spots?", "Is the lesion surrounded by a pale green or yellow halo?", "Is there any mold-like growth present on the plant? If so, where is it located?", "Describe the texture of the spots on the leaves."], "diagnosis_templates": ["Based on the water-soaked lesions and white mold, what disease is affecting this potato plant?", "Is this potato plant infected with late blight?", "What is wrong with this potato leaf?"], "counterfactual_templates": ["If the spots on the leaf had distinct concentric rings, would it still be late blight?", "What if the lesion was dry and leathery instead of water-soaked and blighted?"], "severity_templates": ["What percentage of the total leaf area is covered by blight?", "How severe is the late blight infection on this plant: mild, moderate, or severe?"], "confounders": ["Could this be early blight instead of late blight?", "Is it possible this is just a healthy leaf with some mechanical damage or sunburn?"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Even, diffuse lighting is best. Avoid harsh shadows or direct sunlight which can obscure lesion details like water-soaking or halos.", "occlusion_notes": "The key symptoms, especially the lesion margin and the underside of the leaf, should be clearly visible and not obscured by other leaves or debris."}, "provenance": {"created_by": "AI Plant Pathologist", "reviewed_by": "Human Expert", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University extension plant pathology guides", "APS Compendium of Potato Diseases, Second Edition", "CABI Invasive Species Compendium"]}}
+{"schema_version": "1.0.0", "disease_id": "raspberry.healthy.healthy", "aliases": ["normal", "asymptomatic"], "crop": {"common_name": "raspberry", "scientific_name": "Rubus idaeus", "family": "Rosaceae"}, "condition": {"common_name": "healthy", "scientific_name": "", "alt_names": ["normal", "asymptomatic", "no disease"], "pathogen": {"type": "none", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "healthy", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Optimal growing conditions", "Sufficient sunlight (6-8 hours/day)", "Well-drained, fertile soil with pH 6.0-6.8", "Adequate and consistent moisture"], "temp_c_day": [18, 25], "temp_c_night": [10, 16], "relative_humidity_pct": [60, 80], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Plant is vigorous with no visible signs of stress or disease on any plant part.", "moderate": "N/A", "severe": "N/A", "notes": "Severity is not applicable to a healthy plant. The 'mild' category represents the baseline healthy state, characterized by the complete absence of symptoms."}, "symptoms": {"leaves": ["Uniformly green color, appropriate for the cultivar.", "Leaves are fully expanded, turgid, and appropriately sized.", "Leaf margins are intact with characteristic serrations and no necrosis.", "Surfaces are free of spots, lesions, pustules, yellowing, or distortion.", "Petioles are firm, holding leaves in a normal orientation."], "stems": ["Canes are firm, erect, and show normal coloration (green for primocanes, brown/woody for floricanes).", "Stems are free of cankers, galls, lesions, or discolored streaks.", "Prickles or hairs are normal in appearance.", "No evidence of wilting or dieback from the tips."], "fruit": ["Berries are plump, firm, and show uniform, vibrant color when ripe.", "Drupelets are well-formed, cohesive, and not shrunken.", "Fruit surface is glossy and free of mold, rot, or insect damage.", "Calyx (cap) is green and fresh-looking."], "roots": ["Root system is fibrous, well-developed, and white to light tan in color."], "whole_plant": ["Exhibits vigorous, upright growth habit.", "Canopy is dense with new, healthy growth evident during the growing season.", "Plant is well-anchored in the soil."], "signs_microscopic_or_visible": ["No visible fungal mycelium, spores, bacterial ooze, or other pathogen structures."]}, "lookalikes": [], "management": {"cultural": ["Select certified disease-free planting stock.", "Plant in well-drained soil with full sun exposure.", "Maintain proper plant spacing to promote air circulation.", "Use drip irrigation to minimize leaf wetness.", "Prune annually to remove spent floricanes and thin primocanes.", "Practice good sanitation by removing weeds and plant debris.", "Provide balanced nutrition based on soil tests."], "biological": [], "chemical": [], "notes": "Management for a healthy plant focuses on preventative cultural practices that promote plant vigor and reduce environmental conditions favorable for disease development."}, "qa_seeds": {"verification_templates": ["Is this raspberry plant healthy?", "Does this plant show any signs of disease or stress?", "Are the leaves on this plant uniformly green and free of spots?", "Is the overall appearance of this plant vigorous and normal?", "Are the canes free from any lesions or cankers?", "Does the fruit appear well-formed and free of mold?"], "attribute_templates": ["What color are the leaves?", "Describe the condition of the canes.", "Are there any spots or discoloration on the leaves?", "How would you describe the fruit on this plant?", "Is the plant showing upright, vigorous growth?", "Describe the leaf margins.", "Are the stems smooth or do they have lesions?"], "diagnosis_templates": ["What is the condition of this raspberry plant?", "Is this plant healthy or diseased?", "Based on the lack of symptoms, what is the diagnosis for this plant?"], "counterfactual_templates": ["What would the leaves look like if this plant had powdery mildew?", "If this plant had cane blight, what would you see on the stems?", "What would be different about the fruit if it had gray mold?"], "severity_templates": ["How would you rate the health of this plant?", "Is there any evidence of disease on this plant?", "On a scale from severely diseased to perfectly healthy, where does this plant fall?"], "confounders": []}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.4, "lighting_notes": "Diffuse, even lighting is preferred. Avoid harsh shadows or direct, overexposing sunlight that can wash out colors.", "occlusion_notes": "The plant or its key parts (leaves, stems, fruit) should be clearly visible and not significantly obscured by other plants, weeds, or man-made objects."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["General university extension guides for raspberry cultivation", "APS Compendium of Raspberry and Blackberry Diseases and Pests"]}}
+{"schema_version": "1.0.0", "disease_id": "soybean.healthy.healthy", "aliases": ["normal soybean", "asymptomatic plant"], "crop": {"common_name": "soybean", "scientific_name": "Glycine max", "family": "Fabaceae"}, "condition": {"common_name": "healthy", "scientific_name": null, "alt_names": ["normal", "asymptomatic"], "pathogen": {"type": "none", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "healthy", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": ["Optimal growing conditions", "Adequate sunlight (6-8 hours direct)", "Sufficient water and nutrients", "Well-drained soil", "Lack of biotic or abiotic stress"], "temp_c_day": [25, 30], "temp_c_night": [18, 22], "relative_humidity_pct": [60, 75], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Not applicable. Plant is either healthy or shows symptoms.", "moderate": "Not applicable.", "severe": "Not applicable.", "notes": "For a healthy plant, severity is zero. Any visible damage, discoloration, or malformation would classify it as unhealthy."}, "symptoms": {"leaves": ["Uniformly green color, appropriate for the variety and growth stage.", "Trifoliate leaves are fully expanded, turgid, and well-formed.", "Leaf surfaces are smooth, without spots, lesions, pustules, or discoloration.", "Leaf margins are entire and show no signs of necrosis, chlorosis, or chewing damage.", "Petioles are firm and hold leaves at a normal angle to the stem."], "stems": ["Stems are sturdy, upright, and green to light brown.", "Fine hairs (trichomes) are typically present and evenly distributed.", "Stems are free of cankers, lesions, discoloration, or breakage."], "fruit": ["Pods (if present) are green, turgid, and appear well-filled.", "Pod surfaces are free of spots, lesions, or mold."], "roots": ["Root system is well-developed with a distinct taproot.", "Roots are white to light tan in color.", "Active nitrogen-fixing nodules are pink or reddish on the inside and firmly attached."], "whole_plant": ["Exhibits vigorous, upright growth appropriate for the developmental stage.", "Canopy is dense and closed in later vegetative stages.", "No signs of stunting, wilting, or general decline."], "signs_microscopic_or_visible": []}, "lookalikes": [], "management": {"cultural": ["Planting certified, disease-free seed of a locally adapted variety.", "Maintaining optimal soil fertility and pH based on soil tests.", "Ensuring adequate soil drainage to prevent waterlogging.", "Using appropriate plant spacing to promote good air circulation.", "Practicing crop rotation with non-host crops (e.g., corn, wheat)."], "biological": [], "chemical": [], "notes": "Management for a healthy plant focuses on preventative cultural practices that promote vigorous growth and minimize environmental and biological stress."}, "qa_seeds": {"verification_templates": ["Does this plant appear healthy and free of any visible symptoms?", "Are the leaves uniformly green without any spots, yellowing, or lesions?", "Is the plant showing vigorous, upright growth?", "Can you confirm the absence of any damage or discoloration on the stem?", "Are there any signs of wilting, stunting, or stress on this plant?"], "attribute_templates": ["What color are the leaves?", "Describe the condition of the leaf surfaces.", "What is the overall posture of the plant?", "Are the leaves turgid or drooping?", "Are there any blemishes on the pods, if they are visible?", "Describe the appearance of the stem."], "diagnosis_templates": ["Is this soybean plant healthy?", "What is the condition of this soybean plant?", "Based on the visual evidence, does this plant have any diseases or disorders?"], "counterfactual_templates": ["If the leaves had yellow spots, would the plant still be considered healthy?", "What would you see on the stem if this plant were diseased?", "If the plant were wilting despite adequate soil moisture, could it be classified as healthy?"], "severity_templates": ["What is the severity of disease on this plant?", "What percentage of the plant is affected by symptoms?", "How would you rate the health of this plant on a scale from diseased to healthy?"], "confounders": []}, "data_requirements": {"min_resolution_px": 480, "min_roi_fraction": 0.3, "lighting_notes": "Prefer diffuse, even lighting. Avoid hard shadows and overexposure which can wash out color and obscure leaf texture.", "occlusion_notes": "The primary subject (e.g., a representative leaf, stem section, or whole plant) should not be significantly occluded by other leaves or background clutter."}, "provenance": {"created_by": "Expert Plant Pathologist and VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["General university extension guides for soybean production", "APS Compendium of Soybean Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "squash.disease_fungal.powdery_mildew", "aliases": ["Squash PM", "Cucurbit powdery mildew"], "crop": {"common_name": "Squash", "scientific_name": "Cucurbita spp.", "family": "Cucurbitaceae"}, "condition": {"common_name": "Powdery Mildew", "scientific_name": "Podosphaera xanthii, Golovinomyces cucurbitacearum", "alt_names": [], "pathogen": {"type": "fungus", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Leotiomycetes", "order": "Erysiphales", "family": "Erysiphaceae", "genus": "Podosphaera", "species": "xanthii"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["windborne conidia", "air currents", "human activity (tools, clothing)"], "overwintering": ["in crop debris", "on weed hosts", "as chasmothecia (sexual fruiting bodies) on plant tissue"]}, "environmental_risk": {"risk_factors": ["high humidity (not free water)", "moderate temperatures", "dense plant canopy with poor air circulation", "low light intensity", "shaded lower leaves"], "temp_c_day": [20, 27], "temp_c_night": [], "relative_humidity_pct": [50, 90], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of the upper leaf surface is covered with sparse, small white spots.", "moderate": "11-40% of the leaf surface is covered; spots have coalesced into larger patches; some yellowing (chlorosis) may be visible beneath.", "severe": ">40% of the leaf surface is covered; leaves are heavily coated in white mycelium, leading to significant yellowing, browning (necrosis), and premature leaf death.", "notes": "Severity is assessed on the most affected mature leaves. The percentage represents the total area covered by visible white fungal growth (mycelium and conidia). Unlike many fungal diseases, powdery mildew does not require free water on the leaf surface for infection, hence the low leaf wetness threshold."}, "symptoms": {"leaves": ["Starts as small, circular, white spots resembling talcum powder on upper leaf surfaces and petioles.", "Spots expand and coalesce, eventually covering entire leaves in a white powdery mat.", "Infected leaves may turn yellow (chlorotic), then brown, dry, and brittle (necrotic).", "Powdery growth can appear on both upper and lower leaf surfaces, but is most common on top.", "Older, lower leaves are typically the first to show symptoms.", "Severe infections cause leaf distortion and premature defoliation."], "stems": ["White powdery patches can develop on petioles and stems.", "Stems and petioles may become brittle under heavy infection."], "fruit": ["Fruit is rarely directly infected, but quality suffers due to plant stress.", "Defoliation can expose fruit to sunscald, causing bleached, sunken areas.", "Powdery growth may appear on fruit stalks (peduncles).", "Infection can lead to smaller, misshapen, or poorly flavored fruit."], "roots": [], "whole_plant": ["Reduced plant vigor and stunted growth.", "Premature senescence of the entire plant in severe cases."], "signs_microscopic_or_visible": ["The primary sign is the white to grayish, powdery fungal growth (mycelium and conidia) which can be rubbed off.", "Late in the season, tiny black specks (chasmothecia, the sexual fruiting bodies) may be visible embedded in the white mycelial mat."]}, "lookalikes": [], "management": {"cultural": ["Plant resistant or tolerant squash varieties.", "Ensure good air circulation through proper plant spacing and pruning.", "Avoid overhead irrigation to minimize humidity within the canopy.", "Remove and destroy infected plant debris at the end of the season.", "Provide adequate nutrition to maintain plant vigor."], "biological": ["Application of bio-fungicides containing Bacillus subtilis or Streptomyces lydicus.", "Use of neem oil or horticultural oils, which can disrupt fungal growth."], "chemical": ["Application of registered fungicides, such as sulfur, potassium bicarbonate, or synthetic fungicides (e.g., strobilurins, DMIs).", "Rotate fungicide chemical groups (FRAC codes) to prevent the development of resistance."], "notes": "Early detection and intervention are crucial. Fungicide applications are preventative and most effective when started at the first sign of disease. Oils and sulfur can cause phytotoxicity in hot weather (>32°C)."}, "qa_seeds": {"verification_templates": ["Is there a white, powdery substance on the surface of the squash leaf?", "Does the image show distinct, circular white spots on the leaves?", "Can you see white fungal growth on the stems or petioles?", "Are the older, lower leaves more affected than the new growth?", "Does it look like flour or talcum powder has been sprinkled on the plant?"], "attribute_templates": ["What color is the powdery growth on the leaf?", "Where on the leaf is the white growth located (upper surface, lower surface, both)?", "Describe the shape of the initial spots.", "Have the white spots merged to form larger patches?", "Is there any yellowing or browning of the leaf tissue underneath the white growth?", "Can you see any tiny black dots within the white patches?"], "diagnosis_templates": ["Based on the white, powdery patches on the leaves, what disease is affecting this squash plant?", "What is the likely cause of the talcum-like spots on the squash?", "Is this plant showing signs of powdery mildew?"], "counterfactual_templates": ["If the spots were angular, yellow, and bordered by leaf veins, would it still be powdery mildew?", "If the white growth was fuzzy and gray instead of powdery, what might it be?"], "severity_templates": ["What percentage of the leaf surface is covered by the white mildew?", "How would you rate the severity of this powdery mildew infection: mild, moderate, or severe?", "Is the infection limited to a few small spots or are entire leaves covered?"], "confounders": []}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Avoid harsh shadows or overexposure that can wash out the white powdery signs. Diffuse, even lighting is best. The white powder should be distinguishable from glare.", "occlusion_notes": "The primary affected leaf surfaces should be clearly visible and not significantly obscured by other leaves, debris, or water droplets."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University Extension Plant Disease Guides", "APS Compendium of Cucurbit Diseases", "General Plant Pathology Textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "strawberry.healthy.healthy", "aliases": ["normal", "asymptomatic", "uninfected"], "crop": {"common_name": "strawberry", "scientific_name": "Fragaria × ananassa", "family": "Rosaceae"}, "condition": {"common_name": "healthy", "scientific_name": null, "alt_names": [], "pathogen": {"type": "none", "taxonomy": {"kingdom": "", "phylum": "", "class": "", "order": "", "family": "", "genus": "", "species": ""}}}, "issue_type": "healthy", "transmission": {"vectors": [], "dispersal": [], "overwintering": []}, "environmental_risk": {"risk_factors": [], "temp_c_day": [], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Not applicable; plant is healthy.", "moderate": "Not applicable; plant is healthy.", "severe": "Not applicable; plant is healthy.", "notes": "Severity is not applicable for a healthy plant. Any visible symptoms would indicate a different condition."}, "symptoms": {"leaves": ["Leaves are uniformly medium to dark green.", "Leaflets are ternate (in groups of three) with well-defined serrated margins.", "Leaf surface is smooth or slightly hairy, without any spots, lesions, or discoloration.", "Foliage is turgid and not wilted or drooping.", "No yellowing (chlorosis) or browning (necrosis) is present.", "Petioles (leaf stalks) are green, firm, and support the leaves upright."], "stems": ["Crowns are firm, well-developed, and free of discoloration or rot.", "Runners (stolons) are green to reddish-green and appear vigorous."], "fruit": ["Developing fruit is green and firm.", "Ripe fruit is plump, glossy, and uniformly colored according to the cultivar (typically bright red).", "Fruit is free from soft spots, mold, or sunken lesions."], "roots": ["Roots are numerous, fibrous, and white to light tan in color."], "whole_plant": ["Plant exhibits a vigorous, mounding growth habit.", "No stunting, dieback, or overall decline is visible."], "signs_microscopic_or_visible": ["No visible signs of pathogens such as mycelium, fungal spores, bacterial ooze, or fruiting bodies."]}, "lookalikes": [{"condition_name": "leaf scorch", "condition_id": "strawberry.fungal.leaf_scorch", "key_differences": ["Healthy leaves have a uniform green color, whereas leaf scorch causes distinct, irregular purplish-to-brown blotches that may have a dark border.", "Healthy leaf margins are intact and green, while leaf scorch lesions often start at the margins, causing them to dry out and curl upwards.", "The tissue between the veins on leaves with advanced leaf scorch turns brown or V-shaped, a pattern absent in healthy leaves.", "Healthy plants maintain green foliage throughout, while leaf scorch symptoms typically appear on older, outer leaves first."]}], "management": {"cultural": ["Use certified disease-free transplants.", "Provide adequate plant spacing to promote air circulation and rapid drying of foliage.", "Manage irrigation to avoid waterlogged soil and minimize leaf wetness duration.", "Maintain balanced soil fertility based on soil tests.", "Practice good field sanitation, removing dead leaves and plant debris."], "biological": [], "chemical": [], "notes": "Management for a healthy plant focuses on preventative cultural practices that maintain vigor and reduce the likelihood of disease development."}, "qa_seeds": {"verification_templates": ["Is this strawberry plant healthy?", "Does this image show a normal, asymptomatic strawberry leaf?", "Are there any signs of disease or stress on this plant?", "Can you confirm this strawberry is uninfected?", "Is the fruit on this plant free from blemishes and mold?", "Does this foliage appear healthy?"], "attribute_templates": ["What color are the leaves?", "Describe the leaf margins.", "Is the foliage uniformly green?", "Are there any spots or lesions on the leaves?", "Describe the overall growth habit of the plant.", "What is the condition of the leaf surface?"], "diagnosis_templates": ["What is the condition of this strawberry plant?", "Based on the appearance of the leaves and fruit, what is your diagnosis?", "Is this plant healthy or does it have a disease?"], "counterfactual_templates": ["If this plant had leaf scorch, what would be different about the leaves?", "What would you expect to see if this healthy plant were nutrient deficient?"], "severity_templates": ["How severe is the condition shown on this plant?", "What is the severity level of this plant's condition?"], "confounders": ["leaf_scorch"]}, "data_requirements": {"min_resolution_px": 480, "min_roi_fraction": 0.3, "lighting_notes": "Prefer diffuse, even lighting. Avoid harsh shadows or direct sunlight that can cause glare and obscure leaf color and texture.", "occlusion_notes": "The target leaves or plant should be in focus and minimally occluded by other plants, weeds, or debris. A clear view of the upper leaf surface is essential."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "N/A", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["General university extension guides for strawberry cultivation", "APS Compendium of Strawberry Diseases"]}}
+{"schema_version": "1.0.0", "disease_id": "strawberry.unknown.leaf_scorch", "aliases": ["strawberry leaf scorch", "Diplocarpon leaf scorch"], "crop": {"common_name": "strawberry", "scientific_name": "Fragaria × ananassa", "family": "Rosaceae"}, "condition": {"common_name": "leaf scorch", "scientific_name": "Diplocarpon earlianum", "alt_names": ["purple leaf spot"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Leotiomycetes", "order": "Helotiales", "family": "Dermateaceae", "genus": "Diplocarpon", "species": "earlianum"}}}, "issue_type": "unknown", "transmission": {"vectors": [], "dispersal": ["rain splash", "wind-driven rain", "overhead irrigation", "contaminated tools"], "overwintering": ["infected leaf debris", "lesions on living leaves and petioles"]}, "environmental_risk": {"risk_factors": ["prolonged leaf wetness (>12 hours)", "high relative humidity (>85%)", "dense plant canopies with poor air circulation", "use of overhead irrigation", "susceptible cultivars"], "temp_c_day": [20, 25], "temp_c_night": [], "relative_humidity_pct": [85, 100], "leaf_wetness_hours_threshold": 12}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of total leaf area on the plant is affected; a few scattered lesions, primarily on older leaves.", "moderate": "11-40% of leaf area is affected; multiple lesions are coalescing, with some yellowing or browning of leaf tissue between lesions.", "severe": ">40% of leaf area is affected; extensive lesion coalescence, significant leaf necrosis, defoliation, and potential infection of petioles and calyces.", "notes": "Severity is estimated as the percentage of the total photosynthetic area on an individual plant showing symptoms. It's a visual average across all leaves, not just one."}, "symptoms": {"leaves": ["Initial symptoms are small, irregular, dark purple to reddish-purple spots on upper leaf surfaces.", "Spots enlarge to 1-5 mm in diameter but remain uniformly purplish, lacking a tan or gray center.", "Multiple spots may merge (coalesce) to form large, irregular, V-shaped blotches, often starting at the leaf margin.", "Leaf tissue between the purple blotches may turn yellow, then brown.", "In severe cases, entire leaflets dry up, curl upwards at the edges, and appear scorched or burnt.", "Tiny, black, glistening fungal fruiting bodies (acervuli) may be visible within older lesions, sometimes requiring magnification."], "stems": ["Elongated, purplish lesions can develop on petioles (leaf stalks) and runners."], "fruit": ["The calyx (leafy cap) can become infected, showing purplish-brown lesions that cause it to dry out and detract from fruit appearance."], "roots": [], "whole_plant": ["In chronic, severe infections, plants may show reduced vigor and stunted growth."], "signs_microscopic_or_visible": ["Presence of tiny, black, glistening acervuli (fungal fruiting bodies) within the center of older lesions."]}, "lookalikes": [{"condition_name": "healthy", "condition_id": "strawberry.healthy.healthy", "key_differences": ["Healthy leaves are uniformly green and show no signs of purple, red, or brown spots.", "The margins of healthy leaves are green and intact, not curled, dry, or scorched-looking.", "The surface of a healthy leaf is smooth and free of lesions or any visible fungal structures."]}], "management": {"cultural": ["Plant resistant or tolerant strawberry cultivars.", "Ensure proper plant spacing to promote good air circulation and rapid leaf drying.", "Use drip or furrow irrigation to keep foliage dry; avoid overhead sprinklers.", "Remove and destroy infected leaves and plant debris after harvest to reduce overwintering inoculum.", "Practice crop rotation if possible."], "biological": ["Some bio-fungicides containing strains of *Bacillus* may offer partial suppression when used preventatively."], "chemical": ["Apply preventative fungicides during periods of high risk (warm, wet weather).", "Rotate fungicides with different modes of action (FRAC groups) to prevent resistance.", "Ensure thorough spray coverage of all plant surfaces, especially the foliage."], "notes": "An integrated management approach combining cultural practices with timely fungicide applications is most effective for controlling leaf scorch."}, "qa_seeds": {"verification_templates": ["Are there irregular, purplish spots on the upper surface of the strawberry leaves?", "Do the spots lack a distinct tan or white center?", "Can you see any large, scorched-looking areas where multiple spots have merged?", "Are the edges of the leaves curling upwards and appearing dry or burnt?", "Is the leafy cap on the fruit showing any brown, dried-out lesions?"], "attribute_templates": ["What color are the lesions on the leaves?", "Describe the shape and size of the spots.", "Are the lesions merging together to form larger blotches?", "What is the condition of the leaf margins?", "Is there any yellowing on the leaf tissue located between the purple spots?", "Are the spots concentrated on older or younger leaves?"], "diagnosis_templates": ["Based on the irregular purple spots that lack a pale center, is this strawberry plant affected by leaf scorch?", "Does this plant have strawberry leaf scorch?", "What disease is causing these purple blotches and scorched leaf edges?"], "counterfactual_templates": ["If the spots had a distinct tan center with a purple border, would it still be leaf scorch?", "If the leaves were perfectly green with no spots or discoloration, could the plant have leaf scorch?"], "severity_templates": ["What percentage of the total leaf area on this plant is covered in purple spots or scorched tissue?", "How would you rate the severity of the leaf scorch infection?", "Is the leaf scorch infection mild, moderate, or severe?"], "confounders": ["healthy"]}, "data_requirements": {"min_resolution_px": 600, "min_roi_fraction": 0.4, "lighting_notes": "Use even, diffuse lighting. Avoid direct, harsh sunlight which can create deep shadows or overexpose the leaves, obscuring lesion details.", "occlusion_notes": "The upper surface of one or more symptomatic leaves should be clearly visible and not significantly obscured by other leaves, straw mulch, or debris."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T11:00:00Z", "updated_at": "2023-10-27T11:00:00Z", "sources": ["University extension plant disease guides", "APS Compendium of Strawberry Diseases, Second Edition", "General plant pathology diagnostic manuals"]}}
+{"schema_version": "1.0.0", "disease_id": "tomato.disease_fungal.target_spot", "aliases": ["Corynespora leaf spot"], "crop": {"common_name": "Tomato", "scientific_name": "Solanum lycopersicum", "family": "Solanaceae"}, "condition": {"common_name": "Target Spot", "scientific_name": "Corynespora cassiicola", "alt_names": ["Corynespora leaf spot"], "pathogen": {"type": "disease_fungal", "taxonomy": {"kingdom": "Fungi", "phylum": "Ascomycota", "class": "Dothideomycetes", "order": "Pleosporales", "family": "Corynesporascaceae", "genus": "Corynespora", "species": "cassiicola"}}}, "issue_type": "disease_fungal", "transmission": {"vectors": [], "dispersal": ["Wind", "Water splash (rain, irrigation)", "Contaminated tools", "Infected seed"], "overwintering": ["Infected plant debris", "On alternative weed hosts", "In soil"]}, "environmental_risk": {"risk_factors": ["High humidity", "Poor air circulation", "Overhead irrigation", "Warm temperatures", "Extended periods of leaf wetness"], "temp_c_day": [24, 32], "temp_c_night": [20, 26], "relative_humidity_pct": [80, 100], "leaf_wetness_hours_threshold": 8}, "severity_rubric": {"unit": "percent_leaf_area", "mild": "1-10% of leaf area affected. Few, scattered lesions, primarily on lower leaves.", "moderate": "11-40% of leaf area affected. Numerous lesions on lower and mid-canopy leaves. Some yellowing and minor defoliation may be present.", "severe": ">40% of leaf area affected. Widespread lesions on leaves, stems, and fruit. Significant defoliation and yellowing.", "notes": "Severity is estimated as the percentage of total foliage showing symptoms. Assess multiple leaves from different parts of the plant (lower, middle, upper canopy) for an average rating."}, "symptoms": {"leaves": ["Starts as small, water-soaked spots on older, lower leaves.", "Lesions expand into circular spots, 1-10 mm in diameter, with a 'target' or 'bulls-eye' appearance.", "Mature lesions exhibit distinct concentric rings.", "Lesion centers are typically tan or light gray with a dark brown to black border.", "A yellow halo often surrounds the lesions.", "Spots can merge, creating large, irregular blighted areas.", "Infected leaves turn yellow, wither, and drop prematurely, starting from the bottom of the plant."], "stems": ["Elongated, dark, and slightly sunken lesions can form on stems and petioles."], "fruit": ["On green fruit, symptoms are small, dark, slightly sunken pits.", "On ripe fruit, lesions become larger, more sunken, and may show concentric rings.", "A velvety, dark fungal growth may appear on fruit lesions under high humidity."], "roots": [], "whole_plant": ["Defoliation progresses from the lower canopy upwards, potentially leading to sunscald on fruit."], "signs_microscopic_or_visible": ["Under magnification or high humidity, a dark, fuzzy mold (conidia and conidiophores) may be visible in the center of lesions."]}, "lookalikes": [{"condition_name": "Early Blight", "condition_id": "tomato.disease_fungal.early_blight", "key_differences": ["Early blight lesions are typically larger (>10 mm), more leathery, and more angular than the finer, more circular target spot lesions.", "The concentric rings in early blight are often fewer, coarser, and more pronounced.", "Early blight frequently causes a distinct 'collar rot' lesion at the soil line on stems, which is not characteristic of target spot."]}, {"condition_name": "Septoria Leaf Spot", "condition_id": "tomato.disease_fungal.septoria_leaf_spot", "key_differences": ["Septoria lesions are much smaller (2-5 mm) and more numerous than target spot lesions.", "Septoria lesions lack the distinct concentric 'target' rings.", "The centers of Septoria lesions contain tiny, visible black specks (pycnidia), which are absent in target spot."]}, {"condition_name": "Bacterial Spot", "condition_id": "tomato.disease_bacterial.bacterial_spot", "key_differences": ["Bacterial spot lesions are often angular (vein-limited) and initially appear dark and water-soaked.", "Bacterial spot lesions do not have the concentric ring pattern of target spot.", "The centers of bacterial spots may fall out, creating a 'shot-hole' appearance, which is uncommon for target spot."]}], "management": {"cultural": ["Use certified disease-free seed and transplants.", "Rotate crops with non-solanaceous plants for at least two years.", "Improve air circulation via staking, pruning, and adequate plant spacing.", "Avoid overhead watering to minimize leaf wetness; use drip irrigation.", "Remove and destroy infected plant debris after harvest.", "Control solanaceous weeds which may act as alternative hosts."], "biological": ["Application of bio-fungicides containing strains of *Bacillus subtilis* or *Trichoderma* spp. may provide some suppression if applied preventatively."], "chemical": ["Apply preventative fungicides, especially during warm, humid weather.", "Effective contact fungicides include those with active ingredients like chlorothalonil, mancozeb, or copper.", "Rotate systemic fungicides from different FRAC groups (e.g., strobilurins, SDHIs) to prevent resistance."], "notes": "Chemical control is most effective when used preventatively. Always follow pesticide label instructions for application rates and timing."}, "qa_seeds": {"verification_templates": ["Does this leaf show spots with a 'bulls-eye' pattern?", "Are there concentric rings visible within the leaf spots?", "Are the spots circular with tan centers and dark borders?", "Is there a yellow halo surrounding the spots on this leaf?", "Are the symptoms most prominent on the lower, older leaves?", "Is the plant showing signs of defoliation starting from the bottom up?"], "attribute_templates": ["Describe the pattern inside the largest lesion.", "What is the shape of the spots on the leaves?", "What color is the border of the leaf spots?", "Are the lesions on the fruit sunken or raised?", "On which part of the plant are the symptoms most severe?", "Is there a halo around the spots? If so, what color is it?"], "diagnosis_templates": ["Given the concentric, target-like rings on the leaves, what is the likely disease?", "Is this tomato plant infected with target spot?", "What fungal disease causes bulls-eye spots on tomato leaves and fruit?"], "counterfactual_templates": ["If the spots were much smaller, had no rings, and contained tiny black dots, what disease might it be instead?", "What would the lesions look like if this were bacterial spot instead of target spot?", "If the lesions were larger and more leathery with thicker rings, what other disease could it be?"], "severity_templates": ["What percentage of this leaf's surface is affected by lesions?", "Based on the extent of leaf damage and defoliation, would you classify this infection as mild, moderate, or severe?", "Is the level of target spot infection on this plant low or high?"], "confounders": ["early_blight", "septoria_leaf_spot", "bacterial_spot"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.2, "lighting_notes": "Use diffuse, even lighting. Avoid hard shadows and overexposure, which can obscure lesion details like color gradients and rings.", "occlusion_notes": "The primary symptomatic leaf or fruit should be clearly visible and not significantly obstructed by other plant parts or background objects."}, "provenance": {"created_by": "VQA Dataset Designer (Expert Plant Pathologist)", "reviewed_by": "VQA Dataset Designer (Expert Plant Pathologist)", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University extension plant pathology guides", "APS Compendium of Tomato Diseases", "General plant pathology textbooks"]}}
+{"schema_version": "1.0.0", "disease_id": "tomato.disease_viral.yellow_leaf_curl_virus", "aliases": ["TYLCV", "Tomato yellow leaf curl"], "crop": {"common_name": "tomato", "scientific_name": "Solanum lycopersicum", "family": "Solanaceae"}, "condition": {"common_name": "yellow leaf curl virus", "scientific_name": "Tomato yellow leaf curl virus", "alt_names": ["TYLCV"], "pathogen": {"type": "virus", "taxonomy": {"kingdom": "Orthornavirae", "phylum": "", "class": "", "order": "", "family": "Geminiviridae", "genus": "Begomovirus", "species": "Tomato yellow leaf curl virus"}}}, "issue_type": "disease_viral", "transmission": {"vectors": ["Whiteflies (specifically Bemisia tabaci)"], "dispersal": ["Infected transplants", "Movement of vector insects"], "overwintering": ["Infected perennial weed hosts", "Infected volunteer tomato plants", "Persistently on adult whiteflies"]}, "environmental_risk": {"risk_factors": ["High whitefly populations", "Warm, dry conditions favoring whitefly development", "Proximity to infected fields or greenhouses"], "temp_c_day": [25, 35], "temp_c_night": [], "relative_humidity_pct": [], "leaf_wetness_hours_threshold": 0}, "severity_rubric": {"unit": "qualitative", "mild": "Slight upward curling and yellowing on a few young, terminal leaves; minimal or no stunting.", "moderate": "Pronounced upward leaf curling, yellowing of leaf margins on multiple leaves, and noticeable stunting of the plant; some flower drop observed.", "severe": "Severe stunting, small, thick, leathery leaves that are strongly cupped upward and bright yellow; significant flower drop and poor or no fruit set.", "notes": "Severity is based on the degree of stunting and leaf deformation. Infections at an early plant age result in the most severe symptoms. Leaf wetness is not a factor for this vector-borne viral disease, hence threshold is 0."}, "symptoms": {"leaves": ["Upward cupping or curling of leaf margins, resembling a cup shape.", "Interveinal yellowing (chlorosis), starting on younger leaves.", "Leaf margins turn a distinct bright yellow while the rest of the leaf may remain green.", "Affected leaves become smaller, thicker, and feel leathery or brittle.", "Leaflets appear crinkled, distorted, and reduced in size."], "stems": ["Internodes are shortened, leading to a compact, bushy appearance."], "fruit": ["Significant reduction in fruit set due to flower abortion.", "Fruits that develop are often smaller than normal and may be unmarketable."], "roots": [], "whole_plant": ["Severe stunting is a primary symptom, especially if infected when young.", "Plant exhibits a generally pale or yellowish appearance.", "A bushy, compact growth habit due to shortened internodes."], "signs_microscopic_or_visible": []}, "lookalikes": [{"condition_name": "mosaic virus", "condition_id": "tomato.disease_viral.mosaic_virus", "key_differences": ["Mosaic virus causes mottled light green and yellow patterns (a mosaic), not the distinct, uniform marginal yellowing of TYLCV.", "Leaf distortion in mosaic is often fern-like or stringy, rather than the thick, leathery, upward cupping of TYLCV.", "While both are viruses, the severe upward leaf curl is the hallmark of TYLCV and is less pronounced in mosaic infections."]}, {"condition_name": "spider mites", "condition_id": "tomato.pest_damage.spider_mites", "key_differences": ["Spider mite damage appears as fine, pale yellow stippling on the leaf surface, not broad chlorosis or yellow margins.", "The underside of mite-infested leaves will have fine webbing and tiny moving mites, which are absent in a viral infection.", "Mite damage does not cause the characteristic severe upward leaf cupping or leathery texture seen in TYLCV.", "Yellowing from mites often progresses to a bronze color and leaf death, while TYLCV leaves typically remain yellow and curled."]}], "management": {"cultural": ["Use certified virus-free transplants.", "Control whitefly populations using reflective (e.g., silver) plastic mulches.", "Promptly remove and destroy infected plants to reduce the source of inoculum.", "Implement a host-free period by removing all tomato and weed hosts between cropping seasons.", "Use physical barriers like insect-proof nets in greenhouses."], "biological": ["Introduce or conserve natural enemies of whiteflies, such as predatory mites, lacewings, and parasitic wasps."], "chemical": ["Apply systemic insecticides at planting to protect young plants.", "Use targeted foliar insecticides to manage whitefly populations, rotating chemical classes to prevent resistance.", "Horticultural oils and insecticidal soaps can be effective in suppressing whitefly numbers with regular application."], "notes": "The primary management strategy is controlling the whitefly vector, as there is no cure for an infected plant. Integrated pest management (IPM) is crucial."}, "qa_seeds": {"verification_templates": ["Does this tomato plant show signs of yellow leaf curl virus?", "Is the symptom shown here consistent with TYLCV?", "Can you confirm the presence of upward leaf curling and marginal yellowing?", "Is the plant in the image infected with a begomovirus?", "Are these symptoms indicative of a whitefly-transmitted virus?"], "attribute_templates": ["In which direction are the leaves curling?", "What color are the leaf margins?", "How would you describe the texture of the affected leaves?", "Is the plant's growth stunted compared to a healthy one?", "Are the symptoms more prominent on older or younger leaves?", "What is the overall shape of the plant's growth habit?"], "diagnosis_templates": ["What disease causes tomato leaves to become small, leathery, cupped upwards, and yellow?", "Based on the severe stunting and yellow curled leaves, what is the likely diagnosis?", "A whitefly infestation was followed by these symptoms. What virus is the likely cause?"], "counterfactual_templates": ["If the leaves had a mottled light and dark green pattern instead of yellow margins, what might be the issue?", "If there were fine webbing and tiny dots on the underside of the leaves, what would be the cause of the yellowing?", "What would this plant look like if it were healthy?"], "severity_templates": ["How severe is the yellow leaf curl infection on this plant?", "Based on the degree of stunting, would you rate this as a mild, moderate, or severe case of TYLCV?", "Is the fruit set on this plant significantly impacted by the disease?"], "confounders": ["mosaic_virus", "spider_mites", "fusarium_wilt"]}, "data_requirements": {"min_resolution_px": 512, "min_roi_fraction": 0.3, "lighting_notes": "Even, diffuse lighting is preferred. Avoid harsh shadows or overexposure that can wash out the yellowing symptoms on leaves.", "occlusion_notes": "Minimize occlusion of affected leaves. Images showing the top of the plant with young, symptomatic leaves are most valuable. A view of the whole plant to assess stunting is also useful."}, "provenance": {"created_by": "Expert Plant Pathologist VQA Dataset Designer", "reviewed_by": "Expert Plant Pathologist VQA Dataset Designer", "created_at": "2023-10-27T10:00:00Z", "updated_at": "2023-10-27T10:00:00Z", "sources": ["University extension guides for vegetable diseases", "APS Compendium of Tomato Diseases and Pests", "General plant virology and entomology textbooks"]}}
diff --git a/diseases_knowledge_base/apple/alternaria_blotch.json b/diseases_knowledge_base/apple/alternaria_blotch.json
new file mode 100644
index 0000000000000000000000000000000000000000..7cfad47a4e45195ba26bfa22f25e2634840cfa1c
--- /dev/null
+++ b/diseases_knowledge_base/apple/alternaria_blotch.json
@@ -0,0 +1,113 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "apple.disease_fungal.alternaria_blotch",
+  "aliases": [
+    "Alternaria leaf blotch",
+    "Alternaria mali leaf spot"
+  ],
+  "crop": {
+    "common_name": "apple",
+    "scientific_name": "Malus domestica",
+    "family": "Rosaceae"
+  },
+  "condition": {
+    "common_name": "Alternaria Blotch",
+    "scientific_name": "Alternaria mali",
+    "alt_names": [
+      "Alternaria leaf blotch"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Pleosporales",
+        "family": "Pleosporaceae",
+        "genus": "Alternaria",
+        "species": "mali"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "wind-borne conidia",
+      "rain splash"
+    ],
+    "overwintering": [
+      "infected fallen leaves",
+      "lesions on twigs",
+      "dormant buds"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High humidity and frequent rainfall",
+      "Warm temperatures, typically in mid-to-late summer",
+      "Poor air circulation within the tree canopy",
+      "Presence of susceptible cultivars (e.g., 'Delicious', 'Indo', 'Jonathan')"
+    ],
+    "temp_c_day": [
+      25,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 8
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area affected. A few scattered, distinct lesions on some leaves. No defoliation.",
+    "moderate": "11-40% of leaf area affected. Lesions are numerous, may be starting to coalesce. Some minor yellowing and premature leaf drop may be visible.",
+    "severe": ">40% of leaf area affected. Widespread, coalesced lesions forming large necrotic blotches. Significant defoliation is evident, leading to a thin canopy.",
+    "notes": "Severity is assessed on the most affected leaves and averaged across the plant. The degree of premature defoliation is a key indicator for moderate to severe ratings."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial symptoms are small (1-5 mm), circular, tan to light brown spots.",
+      "Lesions develop a distinct, dark purple or brownish border as they mature.",
+      "The center of older lesions may turn gray or brown and become necrotic.",
+      "In some cases, the necrotic center may fall out, creating a 'shot-hole' appearance.",
+      "Lesions can coalesce to form large, irregular blotches.",
+      "Affected leaves often turn yellow (chlorotic) around the lesions before dropping.",
+      "Causes premature defoliation, especially in susceptible cultivars during wet seasons."
+    ],
+    "stems": [
+      "Symptoms on stems are uncommon."
+    ],
+    "fruit": [
+      "Small, dark, slightly sunken lesions may appear on the fruit surface.",
+      "Fruit spots are more common near the calyx (blossom end).",
+      "Infection can lead to core rot, which may not be visible externally."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "In severe cases, significant defoliation can lead to a sparse canopy and reduced tree vigor."
+    ],
+    "signs_microscopic_or_visible": [
+      "Under a hand lens and high humidity, a sparse, velvety, olive-green to black fungal growth (conidia) may be visible in the center of lesions."
+    ]
+  },
+  "lookalikes": [],
+  "management": {
+    "cultural": [
+      "Prune trees to improve air circulation and promote rapid drying of leaves.",
+      "Collect and destroy fallen leaves in the autumn to reduce the primary inoculum source.",
+      "Maintain balanced tree nutrition to avoid excessive succulent growth.",
+      "Choose resistant or less susceptible cultivars where possible."
+    ],
+    "biological": [
+      "Some bio-fungicides containing *Bacillus subtilis* may provide partial suppression when applied preventatively."
+    ],
+    "chemical": [
+      "Apply preventative fungicides (e.g., strobilurins, SDHIs, mancozeb, captan) during periods of high risk (warm, wet weather).",
+      "Follow local extension service recommendations for fungicide timing and rotation to manage resistance."
+    ],
+    "notes": "Management is most effective when integrating cultural practices to reduce inoculum with timely fungicide applications based on weather-based disease models."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/apple/black_rot.json b/diseases_knowledge_base/apple/black_rot.json
new file mode 100644
index 0000000000000000000000000000000000000000..688c2defa8b8d163671519973fb7ccfb085463ff
--- /dev/null
+++ b/diseases_knowledge_base/apple/black_rot.json
@@ -0,0 +1,135 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "apple.disease_fungal.black_rot",
+  "aliases": [
+    "frogeye leaf spot",
+    "blossom end rot",
+    "canker"
+  ],
+  "crop": {
+    "common_name": "apple",
+    "scientific_name": "Malus domestica",
+    "family": "Rosaceae"
+  },
+  "condition": {
+    "common_name": "black rot",
+    "scientific_name": "Botryosphaeria obtusa",
+    "alt_names": [
+      "frogeye leaf spot",
+      "canker phase",
+      "fruit rot phase"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Botryosphaeriales",
+        "family": "Botryosphaeriaceae",
+        "genus": "Botryosphaeria",
+        "species": "obtusa"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "rain splash",
+      "wind-driven rain",
+      "pruning tools"
+    ],
+    "overwintering": [
+      "cankers on twigs and branches",
+      "mummified fruit",
+      "dead wood"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "prolonged leaf wetness",
+      "hail damage",
+      "insect injury (e.g., codling moth)",
+      "unpruned dead wood",
+      "high humidity",
+      "tree stress"
+    ],
+    "temp_c_day": [
+      20,
+      26
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      80,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 4.5
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-5% of leaf area affected with distinct, small 'frogeye' lesions.",
+    "moderate": "6-25% of leaf area affected; lesions may be coalescing. Minor fruit or stem symptoms may be present.",
+    "severe": ">25% of leaf area affected, often with premature defoliation. Obvious cankers or multiple rotted/mummified fruit are visible.",
+    "notes": "This rubric primarily applies to the foliar 'frogeye leaf spot' phase. For cankers or fruit rot, a qualitative scale based on the extent of damage is more practical."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, purple flecks that enlarge to 3-6 mm circular lesions.",
+      "Mature lesions develop a distinct 'frogeye' appearance: a tan to light brown center with a prominent purple margin.",
+      "Tiny black specks (pycnidia) may be visible in the center of older lesions under magnification.",
+      "Infected leaves may turn yellow and drop prematurely, especially in severe cases."
+    ],
+    "stems": [
+      "Reddish-brown, sunken cankers on twigs, branches, or the main trunk.",
+      "Cankers can expand, girdle, and kill the affected limb.",
+      "Bark on older cankers may become cracked, blistered, or peel away."
+    ],
+    "fruit": [
+      "Small, brown to black spots, often initiating at the calyx (blossom) end or at a wound.",
+      "Lesions enlarge into a firm, brown-to-black rot.",
+      "The rotted area often displays characteristic concentric rings of alternating light and dark brown/black.",
+      "Infected fruit shrivels, turns black, and becomes a hard, dry 'mummy' that may remain on the tree."
+    ],
+    "roots": [],
+    "whole_plant": [],
+    "signs_microscopic_or_visible": [
+      "Presence of small, black, flask-shaped structures (pycnidia) embedded in the center of leaf lesions, cankers, or rotted fruit tissue."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "cedar apple rust",
+      "condition_id": "apple.disease_fungal.cedar_apple_rust",
+      "key_differences": [
+        "Rust spots are bright orange-yellow with a reddish border, a stark contrast to the tan and purple 'frogeye' spots.",
+        "Rust produces tiny tube-like structures (aecia) on the underside of leaves, which are absent in black rot.",
+        "Black rot cankers and fruit mummies are characteristic and not produced by cedar apple rust."
+      ]
+    },
+    {
+      "condition_name": "alternaria blotch",
+      "condition_id": "apple.disease_fungal.alternaria_blotch",
+      "key_differences": [
+        "Alternaria lesions are often irregular or blotchy, lacking the distinct circular 'frogeye' shape of black rot.",
+        "Alternaria blotches are typically purplish-brown and may have a necrotic center, but lack the pronounced, well-defined purple margin.",
+        "While causing defoliation, Alternaria is not associated with the severe cankers and fruit mummification of black rot."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Prune out dead or cankered branches during winter dormancy, cutting well below the visible canker.",
+      "Remove and destroy mummified fruit from trees and the ground to reduce inoculum.",
+      "Promote good air circulation through proper pruning to speed up drying of foliage.",
+      "Maintain tree vigor with appropriate fertilization and irrigation to reduce stress."
+    ],
+    "biological": [],
+    "chemical": [
+      "Apply protectant fungicides (e.g., captan, mancozeb) from silver tip through petal fall.",
+      "Consider systemic fungicides (e.g., strobilurins, DMIs) for more effective control, especially after infection periods.",
+      "Ensure thorough spray coverage of all parts of the tree, including branches and fruit."
+    ],
+    "notes": "Fungicide timing is critical and should be guided by weather conditions, disease prediction models, and orchard history."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/apple/cedar_apple_rust.json b/diseases_knowledge_base/apple/cedar_apple_rust.json
new file mode 100644
index 0000000000000000000000000000000000000000..06c3eac4f652af70114b9fd752fd3a893e8c6c69
--- /dev/null
+++ b/diseases_knowledge_base/apple/cedar_apple_rust.json
@@ -0,0 +1,109 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "apple.disease_fungal.cedar_apple_rust",
+  "aliases": [
+    "CAR",
+    "apple rust"
+  ],
+  "crop": {
+    "common_name": "apple",
+    "scientific_name": "Malus domestica",
+    "family": "Rosaceae"
+  },
+  "condition": {
+    "common_name": "cedar apple rust",
+    "scientific_name": "Gymnosporangium juniperi-virginianae",
+    "alt_names": [],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Basidiomycota",
+        "class": "Pucciniomycetes",
+        "order": "Pucciniales",
+        "family": "Pucciniaceae",
+        "genus": "Gymnosporangium",
+        "species": "juniperi-virginianae"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [
+      "wind"
+    ],
+    "dispersal": [
+      "aeciospores from apple to cedar/juniper",
+      "basidiospores from cedar/juniper to apple"
+    ],
+    "overwintering": [
+      "as mycelium in galls on the alternate host, Eastern red cedar (Juniperus virginiana) and other susceptible junipers"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "proximity to alternate host (Eastern red cedar)",
+      "prolonged spring rain events",
+      "mild temperatures (7-25\u00b0C) during early leaf development"
+    ],
+    "temp_c_day": [
+      7,
+      25
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 4
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "< 5% of leaf area affected with pale yellow to small orange spots. No aecia visible.",
+    "moderate": "5-25% of leaf area affected. Spots are bright orange-yellow, some with central black dots (spermogonia). Aecia may be developing on the underside.",
+    "severe": "> 25% of leaf area affected. Lesions are large, often coalescing. Prominent aecia (spore tubes) on the underside are common, leading to premature defoliation.",
+    "notes": "This rubric focuses on leaf symptoms, the most common presentation for VQA. Severity can also be judged by the percentage of infected fruit or degree of defoliation."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, pale yellow spots appear on the upper leaf surface in spring.",
+      "Spots enlarge to 1/4-inch diameter, becoming bright orange-yellow, often with a reddish border.",
+      "Tiny black dots (spermogonia) may form in the center of the orange spots on the upper surface.",
+      "In late summer, distinctive brownish, fringed, tube-like structures (aecia) develop on the leaf underside, directly below the spots.",
+      "Heavily infected leaves may turn yellow and drop prematurely, especially in dry conditions."
+    ],
+    "stems": [
+      "Twig infections are rare but can cause small, slightly swollen cankers on highly susceptible cultivars."
+    ],
+    "fruit": [
+      "Orange-yellow lesions, similar to leaf spots but larger, appear on the fruit, typically near the calyx end.",
+      "Fruit lesions may become raised, corky, and cracked.",
+      "Aecia (spore tubes) can also form on fruit lesions, making the fruit unmarketable."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Severe infections cause defoliation, reducing tree vigor, fruit size, and overall yield."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible sign: Brownish, fringed, tube-like aecia on the underside of apple leaves and on fruit.",
+      "Visible sign (on alternate host): Brown, kidney-shaped galls on cedar/juniper that produce gelatinous, orange, horn-like structures (telial horns) in wet spring weather."
+    ]
+  },
+  "lookalikes": [],
+  "management": {
+    "cultural": [
+      "Plant rust-resistant apple cultivars.",
+      "Remove nearby alternate hosts (Eastern red cedar, junipers) within a 1-2 mile radius, if feasible.",
+      "Maintain tree vigor through proper pruning, fertilization, and irrigation."
+    ],
+    "biological": [
+      "No widely effective biological control agents are commercially available for cedar apple rust."
+    ],
+    "chemical": [
+      "Apply preventative fungicides from the pink bud stage through early summer.",
+      "Effective fungicide classes include DMIs (FRAC 3) and strobilurins (FRAC 11).",
+      "Fungicide timing is critical and should coincide with periods of rain and basidiospore release from cedar galls."
+    ],
+    "notes": "Integrated management combining resistant cultivars and well-timed fungicide applications is most effective. Eradication of the alternate host is often impractical."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/apple/healthy.json b/diseases_knowledge_base/apple/healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..b8128f0e0f4d4da03a796d348081002f3fa793ca
--- /dev/null
+++ b/diseases_knowledge_base/apple/healthy.json
@@ -0,0 +1,125 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "apple.healthy.healthy",
+  "aliases": [
+    "normal apple",
+    "unaffected apple",
+    "disease-free apple"
+  ],
+  "crop": {
+    "common_name": "apple",
+    "scientific_name": "Malus domestica",
+    "family": "Rosaceae"
+  },
+  "condition": {
+    "common_name": "healthy",
+    "scientific_name": null,
+    "alt_names": [],
+    "pathogen": {
+      "type": "none",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "healthy",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Optimal growing conditions",
+      "Good air circulation",
+      "Appropriate soil moisture and nutrition",
+      "Absence of pathogen pressure"
+    ],
+    "temp_c_day": [],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "0% leaf area affected by symptoms.",
+    "moderate": "Not applicable for a healthy condition.",
+    "severe": "Not applicable for a healthy condition.",
+    "notes": "Severity for a healthy plant is defined as the complete absence of disease or abiotic stress symptoms. Any visible symptom would classify the plant under a different condition."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uniform green coloration, specific shade may vary by cultivar.",
+      "Smooth, waxy surface (cuticle) without lesions, spots, or pustules.",
+      "Leaf margins are intact, not ragged, curled, or necrotic.",
+      "No visible powdery or sooty growth on upper or lower surfaces.",
+      "Veins are normal in color and not swollen or discolored.",
+      "Petioles are firm, green, and unblemished."
+    ],
+    "stems": [
+      "Bark is smooth and intact on young shoots, becoming rougher on older wood.",
+      "No cankers, sunken areas, cracks, or oozing sap.",
+      "Color is appropriate for the age and cultivar (e.g., reddish-brown to grayish-brown)."
+    ],
+    "fruit": [
+      "Skin is smooth, firm, and free of spots, scabs, cracks, or rot.",
+      "Coloration is uniform and characteristic of the cultivar at its current maturity stage.",
+      "Shape is symmetrical and not distorted.",
+      "Flesh is crisp, firm, and without internal browning or breakdown."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Vigorous and upright growth habit.",
+      "Dense, well-distributed canopy of leaves.",
+      "Evidence of new, healthy shoot and leaf development during the growing season."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "scab",
+      "condition_id": "apple.fungal.scab",
+      "key_differences": [
+        "Healthy leaves are uniformly green and smooth; scab causes distinct olive-green to brown, velvety spots.",
+        "Healthy fruit has smooth skin; scab lesions on fruit become raised, dark, and corky.",
+        "Healthy leaves are flat; heavily infected leaves with scab may become distorted or curled."
+      ]
+    },
+    {
+      "condition_name": "powdery_mildew",
+      "condition_id": "apple.fungal.powdery_mildew",
+      "key_differences": [
+        "Healthy leaves have a clean, waxy surface; powdery mildew appears as white, felt-like patches on leaves, shoots, and blossoms.",
+        "Healthy new growth is vigorous and green; mildew-infected shoots are often stunted, curled, and covered in the white mycelium.",
+        "Healthy fruit skin is smooth; powdery mildew can cause a net-like russeting on the fruit surface."
+      ]
+    },
+    {
+      "condition_name": "cedar apple rust",
+      "condition_id": "apple.fungal.cedar_apple_rust",
+      "key_differences": [
+        "Healthy leaves have no spots; cedar apple rust produces bright, conspicuous orange-yellow spots on the upper leaf surface.",
+        "The underside of a healthy leaf is plain; rust spots develop small, black specks (spermogonia) and later, tube-like structures (aecia) on the underside.",
+        "Healthy fruit is unblemished; rust lesions can appear on fruit, typically near the calyx end, as orange, slightly raised spots."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Select resistant cultivars.",
+      "Ensure proper plant spacing for good air circulation.",
+      "Maintain balanced soil fertility and pH.",
+      "Use proper pruning techniques to open the canopy.",
+      "Provide adequate and consistent irrigation, avoiding overhead watering."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "Management for a healthy plant focuses on preventative practices and maintaining optimal growing conditions to reduce susceptibility to future diseases."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/apple/powdery_mildew.json b/diseases_knowledge_base/apple/powdery_mildew.json
new file mode 100644
index 0000000000000000000000000000000000000000..2e8d82d62f0c495350f2ef998953f08f32886308
--- /dev/null
+++ b/diseases_knowledge_base/apple/powdery_mildew.json
@@ -0,0 +1,142 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "apple.disease_fungal.powdery_mildew",
+  "aliases": [
+    "Apple mildew",
+    "PM"
+  ],
+  "crop": {
+    "common_name": "apple",
+    "scientific_name": "Malus domestica",
+    "family": "Rosaceae"
+  },
+  "condition": {
+    "common_name": "powdery mildew",
+    "scientific_name": "Podosphaera leucotricha",
+    "alt_names": [],
+    "pathogen": {
+      "type": "fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Leotiomycetes",
+        "order": "Erysiphales",
+        "family": "Erysiphaceae",
+        "genus": "Podosphaera",
+        "species": "leucotricha"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "wind-borne conidia",
+      "rain splash"
+    ],
+    "overwintering": [
+      "as mycelium in dormant vegetative or fruit buds",
+      "as chasmothecia (fruiting bodies) on bark"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high relative humidity (not free water)",
+      "moderate temperatures",
+      "dense canopy with poor air circulation",
+      "susceptible cultivars (e.g., Jonathan, Rome, Gala)",
+      "abundant succulent new growth"
+    ],
+    "temp_c_day": [
+      18,
+      25
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      70,
+      90
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "< 5% of leaf surface covered with white mycelium; no leaf distortion.",
+    "moderate": "5-25% of leaf surface covered; some leaf curling or crinkling is visible.",
+    "severe": "> 25% of leaf surface covered; significant leaf distortion, stunting of shoots, and/or premature defoliation.",
+    "notes": "Severity is assessed on actively growing shoots and young leaves, which are most susceptible. For fruit, severity can be assessed by the percentage of surface with russeting. Powdery mildew does not require leaf wetness for infection, hence the threshold is 0."
+  },
+  "symptoms": {
+    "leaves": [
+      "White to light gray, felt-like patches of mycelium, often appearing first on the underside.",
+      "Infected leaves may curl, crinkle, or fold upwards along the midrib.",
+      "Young infected leaves are often narrow, stiff, and brittle.",
+      "Patches can coalesce to cover the entire leaf surface.",
+      "In late summer, tiny black specks (chasmothecia) may be visible within the white mycelial mats."
+    ],
+    "stems": [
+      "White, powdery growth covers new, succulent shoots (terminals).",
+      "Infected shoots are stunted with shortened internodes.",
+      "Infected shoot tips may die back, appearing brown or black."
+    ],
+    "fruit": [
+      "Causes a web-like or net-like russeting on the fruit skin.",
+      "Infected fruit may be dwarfed, misshapen, or cracked.",
+      "White mycelial growth is less common but can occur, especially around the calyx."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Reduced tree vigor and stunted overall growth, particularly in young trees or highly susceptible cultivars."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible white, powdery mycelium and conidia on plant surfaces.",
+      "Small, black, spherical fruiting bodies (chasmothecia) visible with a hand lens in late season."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "scab",
+      "condition_id": "apple.disease_fungal.scab",
+      "key_differences": [
+        "Scab lesions are distinct, olive-green to brown/black spots, not a white, powdery coating.",
+        "Powdery mildew can be rubbed off easily in early stages; scab lesions cannot.",
+        "Scab causes leaf blistering and puckering, while mildew causes upward curling and folding.",
+        "Scab fruit spots are dark and scabby, unlike the net-like russeting from mildew."
+      ]
+    },
+    {
+      "condition_name": "cedar apple rust",
+      "condition_id": "apple.disease_fungal.cedar_apple_rust",
+      "key_differences": [
+        "Rust spots are bright orange-yellow, often with a red border, not white and powdery.",
+        "Rust produces small, cup-like structures (aecia) on the leaf underside, not a mycelial mat.",
+        "Powdery mildew commonly infects and stunts entire shoot tips, which is not a primary symptom of rust."
+      ]
+    },
+    {
+      "condition_name": "healthy",
+      "condition_id": "apple.healthy",
+      "key_differences": [
+        "Natural leaf hairs (pubescence) on young leaves can be mistaken for mildew, but pubescence is uniform, silvery, and cannot be rubbed off like a powder.",
+        "Spray residue can leave a white film, but it is often more uniform, less 'fuzzy' or 'felt-like', and may have droplet patterns.",
+        "Healthy leaves are uniformly green without distortion, curling, or powdery patches."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Prune and destroy infected shoots and terminals during winter dormancy.",
+      "Plant resistant or tolerant cultivars.",
+      "Ensure good air circulation via proper pruning and tree spacing to reduce humidity.",
+      "Avoid excessive nitrogen fertilization that encourages susceptible new growth."
+    ],
+    "biological": [
+      "Application of bio-fungicides containing *Bacillus subtilis* or potassium bicarbonate.",
+      "Neem oil or horticultural oils can be effective but must be applied carefully to avoid phytotoxicity."
+    ],
+    "chemical": [
+      "Preventative application of fungicides (e.g., sulfur, sterol inhibitors (DMIs), strobilurins (QoIs)) starting at tight cluster or pink stage.",
+      "Rotate fungicide classes (FRAC groups) to manage and prevent resistance."
+    ],
+    "notes": "Management is most critical from pre-bloom through early summer when new tissues are most susceptible to infection."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/apple/scab.json b/diseases_knowledge_base/apple/scab.json
new file mode 100644
index 0000000000000000000000000000000000000000..0ceb4b7a0948a9e1bcde77e4d9eba2d1dc2db0cf
--- /dev/null
+++ b/diseases_knowledge_base/apple/scab.json
@@ -0,0 +1,141 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "apple.disease_fungal.scab",
+  "aliases": [
+    "apple scab",
+    "black spot"
+  ],
+  "crop": {
+    "common_name": "apple",
+    "scientific_name": "Malus domestica",
+    "family": "Rosaceae"
+  },
+  "condition": {
+    "common_name": "scab",
+    "scientific_name": "Venturia inaequalis",
+    "alt_names": [
+      "black spot"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Venturiales",
+        "family": "Venturiaceae",
+        "genus": "Venturia",
+        "species": "inaequalis"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "wind-driven rain",
+      "splashing water",
+      "airborne ascospores"
+    ],
+    "overwintering": [
+      "infected fallen leaves on the orchard floor (as pseudothecia)",
+      "lesions on twigs and bud scales"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "prolonged leaf wetness periods",
+      "cool, wet spring weather",
+      "high relative humidity",
+      "poor air circulation within the tree canopy"
+    ],
+    "temp_c_day": [
+      16,
+      24
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      95,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 9
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-5% of leaf or fruit surface affected; a few isolated lesions.",
+    "moderate": "6-25% of leaf or fruit surface affected; multiple lesions, some may be coalescing.",
+    "severe": ">25% of leaf or fruit surface affected; extensive lesions, significant leaf yellowing/defoliation, or fruit distortion/cracking.",
+    "notes": "Severity is assessed on individual leaves/fruit or as an average across the canopy. For fruit, severity can also be rated by the degree of cracking and deformation."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initially, pale yellow or olive-green spots on the upper leaf surface.",
+      "Lesions darken to a velvety, olive-brown, then black, often with a feathery, indistinct margin.",
+      "Spots become more defined and circular with age.",
+      "Infected leaves may become distorted, curled, or dwarfed.",
+      "Severe infections cause premature leaf yellowing (chlorosis) and defoliation, typically starting from lower branches."
+    ],
+    "stems": [
+      "Small, blister-like lesions can form on young twigs, becoming rough and corky over time (less common)."
+    ],
+    "fruit": [
+      "Small, circular, velvety olive-green spots appear on young fruit.",
+      "Lesions on maturing fruit become dark brown to black, corky, and raised, creating a 'scabby' texture.",
+      "The skin beneath the scab may stop growing, causing the fruit to become misshapen or cracked.",
+      "Cracks in fruit can provide an entry point for secondary rot organisms."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Reduced tree vigor and significant yield loss in severe, untreated cases."
+    ],
+    "signs_microscopic_or_visible": [
+      "A velvety, olive-green to brown layer of sporulation (conidia) is visible on the surface of active lesions."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "black_rot",
+      "condition_id": "apple.disease_fungal.black_rot",
+      "key_differences": [
+        "Black rot lesions ('frogeye leaf spot') have distinct concentric rings, which scab lesions lack.",
+        "Black rot spots are typically tan to brown in the center with a purple border, unlike the uniform olive-green/black of scab.",
+        "Black rot lesions may contain tiny black dots (pycnidia) in the center; scab lesions are velvety."
+      ]
+    },
+    {
+      "condition_name": "cedar_apple_rust",
+      "condition_id": "apple.disease_fungal.cedar_apple_rust",
+      "key_differences": [
+        "Rust spots are bright orange-yellow, often with a reddish border, not olive-green or black.",
+        "Rust may produce tiny cup-like structures (aecia) on the underside of the leaf, which are absent in scab.",
+        "Scab causes velvety or corky lesions, while rust spots are smooth initially and may cause a thickened gall on the leaf or fruit."
+      ]
+    },
+    {
+      "condition_name": "alternaria_blotch",
+      "condition_id": "apple.disease_fungal.alternaria_blotch",
+      "key_differences": [
+        "Alternaria blotch lesions are often irregular, brownish, and can have a necrotic, papery texture, sometimes with a purplish halo.",
+        "Scab lesions are more distinctly circular or oval and have a velvety texture in early stages.",
+        "Alternaria blotch is often associated with mite injury and is more common on specific cultivars like Delicious."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant resistant cultivars.",
+      "Prune trees to improve air circulation and sunlight penetration, which speeds drying.",
+      "Rake and destroy or compost fallen leaves in autumn to reduce the primary source of inoculum.",
+      "Maintain proper tree nutrition and irrigation to improve overall plant health."
+    ],
+    "biological": [
+      "Application of microbial-based products (e.g., specific strains of *Bacillus subtilis*) can suppress pathogen growth on leaf surfaces."
+    ],
+    "chemical": [
+      "Apply preventative and curative fungicides based on disease prediction models (e.g., using temperature and leaf wetness duration).",
+      "Proper timing of sprays is critical, beginning at the green tip stage and continuing through early summer.",
+      "Rotate fungicide classes (FRAC groups) to manage and prevent the development of fungicide resistance."
+    ],
+    "notes": "An Integrated Pest Management (IPM) strategy that combines cultural practices with predictive modeling and targeted fungicide applications is the most effective and sustainable approach."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/arabian/jasmine_anthracnose.json b/diseases_knowledge_base/arabian/jasmine_anthracnose.json
new file mode 100644
index 0000000000000000000000000000000000000000..6a18bff7316a686fca6f22d3ad8b6d21f7a80625
--- /dev/null
+++ b/diseases_knowledge_base/arabian/jasmine_anthracnose.json
@@ -0,0 +1,144 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "arabian.disease_fungal.jasmine_anthracnose",
+  "aliases": [
+    "Jasmine dieback",
+    "Jasmine twig blight",
+    "Colletotrichum leaf spot of jasmine"
+  ],
+  "crop": {
+    "common_name": "Arabian Jasmine",
+    "scientific_name": "Jasminum sambac",
+    "family": "Oleaceae"
+  },
+  "condition": {
+    "common_name": "Jasmine Anthracnose",
+    "scientific_name": "Colletotrichum gloeosporioides",
+    "alt_names": [
+      "Dieback",
+      "Twig blight"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Sordariomycetes",
+        "order": "Glomerellales",
+        "family": "Glomerellaceae",
+        "genus": "Colletotrichum",
+        "species": "gloeosporioides"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [
+      "Insects (as mechanical carriers)",
+      "Humans (via contaminated pruning tools)"
+    ],
+    "dispersal": [
+      "Rain splash",
+      "Wind-driven rain",
+      "Overhead irrigation"
+    ],
+    "overwintering": [
+      "Infected plant debris on the ground",
+      "As dormant mycelium in stem cankers",
+      "On infected, persistent leaves"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High humidity",
+      "Prolonged leaf wetness (>12 hours)",
+      "Warm temperatures",
+      "Dense plant canopy with poor air circulation",
+      "Recent plant injury or pruning wounds"
+    ],
+    "temp_c_day": [
+      24,
+      32
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 12
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of total foliage affected. A few scattered leaf spots, minimal to no twig dieback observed.",
+    "moderate": "11-40% of total foliage affected. Multiple lesions per leaf, some coalescing. Noticeable dieback on several young shoots.",
+    "severe": ">40% of total foliage affected. Widespread leaf blighting and defoliation. Significant dieback of branches, plant appears sickly.",
+    "notes": "Assessment combines the percentage of leaf surface covered by lesions with the extent of stem/twig dieback. The overall impact on the plant's canopy is considered."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, circular to irregular, water-soaked spots, especially on young leaves.",
+      "Lesions enlarge and turn tan to dark brown, often with a distinct, dark brown or purplish border.",
+      "Spots may coalesce to form large, irregular necrotic patches or blight.",
+      "A 'shot-hole' appearance can occur as the necrotic center of spots dries and falls out.",
+      "Infected leaves may become twisted or distorted before dropping prematurely."
+    ],
+    "stems": [
+      "Symptoms often begin at the tips of young, tender shoots, causing them to wilt and die back.",
+      "Elongated, sunken, dark brown to black lesions (cankers) form on stems and twigs.",
+      "Cankers can girdle the stem, causing all parts above the lesion to wilt and die."
+    ],
+    "fruit": [
+      "Flower buds may develop brown spots, rot, and fail to open.",
+      "Opened flowers can show brown necrotic flecks on petals."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Progressive dieback of branches from the tip inward.",
+      "Stunted growth and reduced plant vigor.",
+      "Significant defoliation in severe cases."
+    ],
+    "signs_microscopic_or_visible": [
+      "Under humid conditions, gelatinous, pink to salmon-colored spore masses (acervuli) erupt through the surface of lesions.",
+      "Using a hand lens, tiny black, bristle-like structures (setae) may be visible in the center of older lesions."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Jasmine Leaf Blight",
+      "condition_id": "arabian.disease_fungal.jasmine_leaf_blight",
+      "key_differences": [
+        "Leaf blight lesions are often larger and more rapidly expanding, engulfing entire leaves without the initial discrete, bordered spot stage of anthracnose.",
+        "Anthracnose is strongly characterized by sunken stem cankers and tip dieback, which are less prominent or absent in many leaf blight diseases.",
+        "Leaf blight (e.g., Alternaria) may produce dark, sooty mold growth, whereas anthracnose produces pink/orange spore masses in wet conditions.",
+        "Anthracnose spots can have a 'shot-hole' appearance, which is less common for leaf blights."
+      ]
+    },
+    {
+      "condition_name": "Jasmine Leaf Spot",
+      "condition_id": "arabian.disease_fungal.jasmine_leaf_spot",
+      "key_differences": [
+        "Cercospora leaf spots are typically more circular, smaller, and remain discrete, with a characteristic tan or grey center and a very distinct dark purple or reddish-brown border.",
+        "Anthracnose lesions are more variable in shape and tend to coalesce into larger blighted areas more readily.",
+        "Leaf spot diseases are primarily foliar, while anthracnose also causes significant cankers and dieback on stems and twigs."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Prune and destroy infected twigs and branches during dry weather to reduce inoculum.",
+      "Rake up and dispose of fallen leaves and plant debris.",
+      "Improve air circulation through selective pruning and proper plant spacing.",
+      "Avoid overhead irrigation to minimize leaf wetness; use drip irrigation or water the soil directly.",
+      "Maintain plant vigor with appropriate fertilization and watering, but avoid excessive nitrogen."
+    ],
+    "biological": [
+      "Application of biofungicides containing strains of *Bacillus subtilis* or *Trichoderma* spp. may help suppress the pathogen."
+    ],
+    "chemical": [
+      "Apply preventative fungicides during warm, wet periods conducive to disease development.",
+      "Effective active ingredients include mancozeb, chlorothalonil, and copper-based compounds.",
+      "For severe infections, systemic fungicides like those containing azoxystrobin or propiconazole may be necessary."
+    ],
+    "notes": "Rotate fungicide chemical groups to prevent resistance. Always read and follow the product label for application rates and timing."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/arabian/jasmine_arabian_jasmine_healthy.json b/diseases_knowledge_base/arabian/jasmine_arabian_jasmine_healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..8e3c79de381a9e79a0fdf85aee88797b86e0e451
--- /dev/null
+++ b/diseases_knowledge_base/arabian/jasmine_arabian_jasmine_healthy.json
@@ -0,0 +1,105 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "arabian.unknown.jasmine_arabian_jasmine_healthy",
+  "aliases": [
+    "Normal Arabian Jasmine",
+    "Asymptomatic Jasminum sambac"
+  ],
+  "crop": {
+    "common_name": "Arabian Jasmine",
+    "scientific_name": "Jasminum sambac",
+    "family": "Oleaceae"
+  },
+  "condition": {
+    "common_name": "Healthy",
+    "scientific_name": null,
+    "alt_names": [
+      "Normal",
+      "Asymptomatic",
+      "Unaffected"
+    ],
+    "pathogen": {
+      "type": "non_pathogenic",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Optimal sunlight exposure (6-8 hours/day)",
+      "Consistent and appropriate watering",
+      "Well-drained, slightly acidic soil",
+      "Good air circulation around the foliage"
+    ],
+    "temp_c_day": [
+      21,
+      29
+    ],
+    "temp_c_night": [
+      18,
+      21
+    ],
+    "relative_humidity_pct": [
+      60,
+      80
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Not applicable.",
+    "moderate": "Not applicable.",
+    "severe": "Not applicable.",
+    "notes": "This card represents a healthy, asymptomatic plant. Severity assessment is not applicable as there are no signs or symptoms of disease or stress."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uniformly deep green in color with no yellowing or discoloration.",
+      "Leaves are turgid, firm, and not wilted or drooping.",
+      "Leaf surfaces are glossy or waxy and free of spots, lesions, or blemishes.",
+      "Veins are a similar or slightly lighter green than the leaf blade.",
+      "Leaf shape and size are consistent with the species and age of the foliage."
+    ],
+    "stems": [
+      "Stems are firm, strong, and appropriately upright or vining.",
+      "Stem color is green on new growth, becoming light brown on older wood.",
+      "No cankers, galls, black streaks, or lesions are visible on stems."
+    ],
+    "fruit": [],
+    "roots": [],
+    "whole_plant": [
+      "Exhibits vigorous growth with new leaves and shoots.",
+      "Foliage is dense and full.",
+      "Overall appearance is robust and vibrant."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [],
+  "management": {
+    "cultural": [
+      "Provide 6-8 hours of direct or bright, indirect sunlight daily.",
+      "Use a well-draining potting mix or soil.",
+      "Water when the top 1-2 inches of soil feel dry to the touch.",
+      "Ensure good air circulation to reduce humidity on leaf surfaces.",
+      "Fertilize during the growing season according to product recommendations."
+    ],
+    "biological": [],
+    "chemical": [
+      "Not applicable for maintaining health. Chemical treatments are reactive, not preventative, in home settings."
+    ],
+    "notes": "Maintaining optimal cultural conditions is the best way to keep an Arabian Jasmine plant healthy and resilient to potential issues."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/arabian/jasmine_chlorosis.json b/diseases_knowledge_base/arabian/jasmine_chlorosis.json
new file mode 100644
index 0000000000000000000000000000000000000000..ce65ff6f8ded363db2bd19cb5e4cd95de4cb4ffb
--- /dev/null
+++ b/diseases_knowledge_base/arabian/jasmine_chlorosis.json
@@ -0,0 +1,108 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "arabian.nutrient_deficiency.jasmine_chlorosis",
+  "aliases": [
+    "Iron chlorosis",
+    "Nutrient deficiency yellowing",
+    "Jasmine yellowing"
+  ],
+  "crop": {
+    "common_name": "Arabian Jasmine",
+    "scientific_name": "Jasminum sambac",
+    "family": "Oleaceae"
+  },
+  "condition": {
+    "common_name": "Jasmine Chlorosis",
+    "scientific_name": null,
+    "alt_names": [
+      "Iron deficiency",
+      "Manganese deficiency",
+      "Interveinal chlorosis"
+    ],
+    "pathogen": {
+      "type": "Abiotic",
+      "taxonomy": null
+    }
+  },
+  "issue_type": "nutrient_deficiency",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High soil pH (alkaline soil > 7.0)",
+      "Poorly drained or waterlogged soil",
+      "Over-fertilization with phosphorus, which can inhibit iron uptake",
+      "Low soil organic matter",
+      "Compacted soil"
+    ],
+    "temp_c_day": [],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area on younger leaves shows yellowing, while veins remain distinctly green.",
+    "moderate": "11-40% of leaf area is affected; yellowing is pronounced and may spread to older leaves. Some leaf margins may begin to turn brown.",
+    "severe": ">40% of leaf area is affected; leaves are almost entirely yellow or white, with significant browning, stunting, and potential leaf drop.",
+    "notes": "Severity is assessed on the most affected leaves, focusing on the characteristic interveinal chlorosis pattern. The overall percentage of affected leaves on the plant can also be considered."
+  },
+  "symptoms": {
+    "leaves": [
+      "Youngest, newest leaves show yellowing between the veins.",
+      "Leaf veins remain distinctly green, creating a netted or web-like pattern.",
+      "In severe cases, the entire leaf turns pale yellow or almost white.",
+      "Leaf margins may become necrotic (brown and dry) in advanced stages.",
+      "Affected leaves may be smaller than normal.",
+      "Older, lower leaves typically remain green, especially in early stages."
+    ],
+    "stems": [
+      "Internodes may be shortened, leading to a stunted or bunched appearance."
+    ],
+    "fruit": [],
+    "roots": [],
+    "whole_plant": [
+      "Overall plant growth is stunted or vigor is reduced.",
+      "Flowering may be significantly reduced or absent."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Jasmine Leaf Spot",
+      "condition_id": "arabian.fungal.jasmine_leaf_spot",
+      "key_differences": [
+        "Leaf spot presents as discrete, circular or irregular necrotic spots, not a widespread yellowing between veins.",
+        "Spots may have a darker border or a lighter tan center, a feature absent in chlorosis.",
+        "Chlorosis affects the entire lamina between veins, while spots are localized lesions that can appear anywhere on the leaf."
+      ]
+    },
+    {
+      "condition_name": "Jasmine Pest Damage",
+      "condition_id": "arabian.pest.jasmine_pest_damage",
+      "key_differences": [
+        "Pests like spider mites cause fine stippling (tiny yellow dots), not broad interveinal yellowing.",
+        "Pest damage may be accompanied by visible signs like webbing, insects, sooty mold, or honeydew.",
+        "Yellowing from pests is often patchy and irregular, not following the distinct vascular pattern of chlorosis."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Test soil pH and amend to be slightly acidic (6.0-6.5) using elemental sulfur or acidifying fertilizers.",
+      "Improve soil drainage and avoid over-watering.",
+      "Incorporate well-composted organic matter to improve soil structure and nutrient availability.",
+      "Mulch with acidic materials like pine bark or needles."
+    ],
+    "biological": [],
+    "chemical": [
+      "Apply chelated iron (Fe-EDDHA is most effective in high pH soils) as a soil drench.",
+      "Use a balanced fertilizer containing essential micronutrients like iron, manganese, and zinc.",
+      "For a quick but temporary fix, apply a foliar spray of chelated iron or iron sulfate."
+    ],
+    "notes": "Foliar sprays offer a rapid green-up but do not solve the underlying soil problem. Addressing soil pH is the most effective long-term solution."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/arabian/jasmine_leaf_blight.json b/diseases_knowledge_base/arabian/jasmine_leaf_blight.json
new file mode 100644
index 0000000000000000000000000000000000000000..dec0a6babcff34ea5b5fe64c9f4515dd162a7256
--- /dev/null
+++ b/diseases_knowledge_base/arabian/jasmine_leaf_blight.json
@@ -0,0 +1,143 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "arabian.disease_fungal.jasmine_leaf_blight",
+  "aliases": [
+    "Alternaria leaf blight of jasmine",
+    "Jasmine target spot"
+  ],
+  "crop": {
+    "common_name": "Arabian Jasmine",
+    "scientific_name": "Jasminum sambac",
+    "family": "Oleaceae"
+  },
+  "condition": {
+    "common_name": "Jasmine Leaf Blight",
+    "scientific_name": "Alternaria jasmini",
+    "alt_names": [
+      "Alternaria leaf spot"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Pleosporales",
+        "family": "Pleosporaceae",
+        "genus": "Alternaria",
+        "species": "jasmini"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "Wind",
+      "Rain splash",
+      "Contaminated tools",
+      "Infected plant material"
+    ],
+    "overwintering": [
+      "Infected plant debris on the ground",
+      "On infected stems and leaves remaining on the plant"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High humidity",
+      "Prolonged leaf wetness",
+      "Poor air circulation",
+      "Overhead irrigation",
+      "Warm temperatures"
+    ],
+    "temp_c_day": [
+      22,
+      28
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 10
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "< 10% of total leaf area affected with small, scattered lesions.",
+    "moderate": "10-40% of leaf area affected, with some lesions coalescing to form larger necrotic patches.",
+    "severe": "> 40% of leaf area affected, extensive blighting, and premature leaf drop (defoliation) is evident.",
+    "notes": "Severity is assessed on individual symptomatic leaves and averaged across the plant. 'Blight' refers to the rapid browning and death of leaf tissue."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial symptoms are small, water-soaked spots.",
+      "Spots enlarge into irregular to circular lesions, 2-10 mm in diameter.",
+      "Lesions develop a tan, grayish-brown, or light brown center.",
+      "A distinct, dark brown or purplish border often surrounds the lesion center.",
+      "Concentric rings are often visible within lesions, creating a 'target' or 'bull's-eye' appearance.",
+      "A diffuse yellow halo may encircle the entire lesion.",
+      "Multiple lesions frequently coalesce, forming large, irregular blighted areas.",
+      "Infected leaves may curl, become distorted, and turn yellow before dropping.",
+      "Severe infection leads to significant premature defoliation."
+    ],
+    "stems": [
+      "In severe cases, small, dark, slightly sunken lesions may appear on young stems."
+    ],
+    "fruit": [],
+    "roots": [],
+    "whole_plant": [
+      "Reduced plant vigor and poor aesthetic quality.",
+      "Flowering may be reduced in heavily infected plants."
+    ],
+    "signs_microscopic_or_visible": [
+      "Under high humidity, a velvety, dark gray to black fungal growth (conidia and conidiophores) may be visible on the surface of lesions, often observable with a hand lens."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Jasmine Anthracnose",
+      "condition_id": "arabian.disease_fungal.jasmine_anthracnose",
+      "key_differences": [
+        "Anthracnose lesions are typically dark brown to black and sunken, often lacking the distinct concentric 'target' rings of leaf blight.",
+        "Anthracnose frequently starts at leaf tips or margins, causing dieback, whereas blight lesions can appear anywhere on the leaf blade.",
+        "Under wet conditions, anthracnose may produce pinkish-orange spore masses, which are absent in Alternaria blight."
+      ]
+    },
+    {
+      "condition_name": "Jasmine Leaf Spot",
+      "condition_id": "arabian.disease_fungal.jasmine_leaf_spot",
+      "key_differences": [
+        "Cercospora leaf spots are generally smaller, more uniformly circular, and remain as discrete spots for longer before coalescing.",
+        "Leaf blight lesions expand more rapidly and irregularly, causing large patches of dead tissue (blight).",
+        "While both can have a gray center and dark border, the 'target' zonation is a much stronger and more common feature of Alternaria leaf blight."
+      ]
+    },
+    {
+      "condition_name": "Jasmine Pest Damage",
+      "condition_id": "arabian.damage_insect.jasmine_pest_damage",
+      "key_differences": [
+        "Pest damage often presents as stippling (tiny yellow/white dots from mites) or holes from chewing, not expanding necrotic lesions.",
+        "Check for physical evidence of pests, such as insects themselves, fine webbing (spider mites), or sticky honeydew.",
+        "Damage from pests like thrips can cause silvery patches, which look different from the zoned, brown lesions of leaf blight."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Prune to improve air circulation within the plant canopy.",
+      "Avoid overhead irrigation to minimize leaf wetness duration; use soaker hoses or drip irrigation instead.",
+      "Remove and destroy fallen leaves and infected plant debris promptly.",
+      "Ensure adequate spacing between plants."
+    ],
+    "biological": [
+      "Bio-fungicides containing *Bacillus subtilis* or *Trichoderma* species may be used preventatively to suppress fungal growth."
+    ],
+    "chemical": [
+      "Preventative applications of fungicides are most effective.",
+      "Use broad-spectrum fungicides with active ingredients such as mancozeb, chlorothalonil, or copper hydroxide.",
+      "Rotate fungicides with different modes of action to prevent pathogen resistance."
+    ],
+    "notes": "Chemical control should be initiated at the first sign of disease, especially when weather conditions are favorable for development."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/arabian/jasmine_leaf_spot.json b/diseases_knowledge_base/arabian/jasmine_leaf_spot.json
new file mode 100644
index 0000000000000000000000000000000000000000..b820c8f154fccb854a26edfa4d25e73e8a009aa9
--- /dev/null
+++ b/diseases_knowledge_base/arabian/jasmine_leaf_spot.json
@@ -0,0 +1,143 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "arabian.disease_fungal.jasmine_leaf_spot",
+  "aliases": [
+    "Cercospora leaf spot of jasmine",
+    "Jasmine leaf blotch",
+    "Frog-eye leaf spot"
+  ],
+  "crop": {
+    "common_name": "Arabian Jasmine",
+    "scientific_name": "Jasminum sambac",
+    "family": "Oleaceae"
+  },
+  "condition": {
+    "common_name": "Jasmine Leaf Spot",
+    "scientific_name": "Cercospora jasminicola",
+    "alt_names": [
+      "Cercospora leaf spot"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Capnodiales",
+        "family": "Mycosphaerellaceae",
+        "genus": "Cercospora",
+        "species": "jasminicola"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "Wind-driven rain",
+      "Water splash from irrigation",
+      "Contaminated pruning tools",
+      "Movement of infected plant material"
+    ],
+    "overwintering": [
+      "Infected leaf debris on the ground",
+      "As mycelium in lesions on living plant tissue"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High humidity",
+      "Poor air circulation",
+      "Overhead irrigation",
+      "Prolonged leaf wetness",
+      "Crowded planting"
+    ],
+    "temp_c_day": [
+      25,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      95
+    ],
+    "leaf_wetness_hours_threshold": 10
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "< 5% of leaf area affected on symptomatic leaves; spots are few and scattered.",
+    "moderate": "5-25% of leaf area affected; multiple spots present, some may begin to coalesce; minor yellowing of surrounding tissue.",
+    "severe": "> 25% of leaf area affected; large necrotic blotches from coalesced spots; significant leaf yellowing (chlorosis) and premature leaf drop (defoliation) is evident.",
+    "notes": "Severity is assessed on the most affected leaves. Widespread infection across the whole plant increases overall plant-level severity."
+  },
+  "symptoms": {
+    "leaves": [
+      "Starts as small, water-soaked spots on the leaf surface.",
+      "Spots enlarge to become circular or slightly irregular, typically 2-10 mm in diameter.",
+      "Mature lesions develop a characteristic tan, grey, or whitish center.",
+      "A distinct, raised, dark brown or purplish-red border surrounds the lighter center.",
+      "A yellow halo may develop around the lesion border, especially on older leaves.",
+      "Multiple spots can merge (coalesce) to form large, irregular necrotic blotches.",
+      "Tiny, pin-point black dots (stromata) may be visible in the center of older lesions, often requiring a hand lens.",
+      "Heavily infected leaves turn yellow and drop prematurely."
+    ],
+    "stems": [
+      "Lesions on stems are uncommon but can appear as elongated, slightly sunken, dark spots."
+    ],
+    "fruit": [],
+    "roots": [],
+    "whole_plant": [
+      "Reduced plant vigor and a thin, sparse canopy due to defoliation."
+    ],
+    "signs_microscopic_or_visible": [
+      "Under high humidity, a sparse, fuzzy or velvety greyish growth (conidiophores and conidia) may appear in the lesion centers."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Jasmine Anthracnose",
+      "condition_id": "arabian.disease_fungal.jasmine_anthracnose",
+      "key_differences": [
+        "Anthracnose lesions are often darker brown or black, more sunken, and may show faint concentric rings ('target spot' look).",
+        "Jasmine leaf spot has a more distinct, pale tan or grey 'frog-eye' center with a prominent dark border.",
+        "Anthracnose can cause more severe tip dieback on young shoots and blight on flowers."
+      ]
+    },
+    {
+      "condition_name": "Jasmine Leaf Blight",
+      "condition_id": "arabian.disease_fungal.jasmine_leaf_blight",
+      "key_differences": [
+        "Blight lesions are typically larger, more irregular in shape, and often start at the leaf margin or tip, spreading rapidly.",
+        "Blighted areas often appear water-soaked or scorched and lack the distinct, well-defined border of Cercospora leaf spot.",
+        "Leaf blight causes a more rapid and widespread death of leaf tissue, often affecting the entire leaf quickly."
+      ]
+    },
+    {
+      "condition_name": "Jasmine Pest Damage",
+      "condition_id": "arabian.pest.jasmine_pest_damage",
+      "key_differences": [
+        "Damage from sucking pests like spider mites appears as fine, yellowish stippling, not distinct, bordered spots.",
+        "Chewing insect damage results in holes, skeletonization, or ragged edges, not necrotic lesions.",
+        "Physical evidence of pests, such as webbing, frass, or the insects themselves, will be present, typically on the leaf underside."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Prune to improve air circulation within the plant canopy.",
+      "Use drip irrigation or water at the base of the plant to keep foliage dry.",
+      "Remove and destroy fallen leaves and heavily infected plant parts.",
+      "Ensure proper plant spacing to reduce humidity.",
+      "Maintain plant health with appropriate fertilization to increase resilience."
+    ],
+    "biological": [
+      "Application of bio-fungicides containing *Bacillus subtilis* or *Trichoderma* species can help suppress pathogen growth."
+    ],
+    "chemical": [
+      "Apply preventative fungicides containing active ingredients like chlorothalonil, mancozeb, myclobutanil, or copper compounds.",
+      "Begin applications before or at the first sign of disease, especially during warm, wet weather.",
+      "Rotate fungicides with different modes of action to prevent resistance."
+    ],
+    "notes": "Good cultural practices are the foundation of disease management. Chemical controls are most effective when used preventatively."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/arabian/jasmine_pest_damage.json b/diseases_knowledge_base/arabian/jasmine_pest_damage.json
new file mode 100644
index 0000000000000000000000000000000000000000..3c9254859157ef1e857f1e6ae2ce14b46a991339
--- /dev/null
+++ b/diseases_knowledge_base/arabian/jasmine_pest_damage.json
@@ -0,0 +1,148 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "arabian.unknown.jasmine_pest_damage",
+  "aliases": [
+    "Jasmine insect damage",
+    "Jasmine mite damage",
+    "Arabian jasmine pest feeding"
+  ],
+  "crop": {
+    "common_name": "Arabian jasmine",
+    "scientific_name": "Jasminum sambac",
+    "family": "Oleaceae"
+  },
+  "condition": {
+    "common_name": "Jasmine Pest Damage",
+    "scientific_name": "",
+    "alt_names": [
+      "Insect feeding injury",
+      "Mite damage"
+    ],
+    "pathogen": {
+      "type": "pest",
+      "taxonomy": {
+        "kingdom": "Animalia",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [
+      "Infected plant material",
+      "Human activity (tools, clothing)"
+    ],
+    "dispersal": [
+      "Flying (for adult winged insects)",
+      "Crawling",
+      "Wind dispersal (e.g., spider mites)"
+    ],
+    "overwintering": [
+      "In plant debris",
+      "In soil near the host plant",
+      "On the host plant as eggs, pupae, or adults"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Warm, dry, and dusty conditions (favors spider mites)",
+      "High humidity (favors some caterpillars and scale)",
+      "Presence of tender new growth",
+      "Lack of natural predators",
+      "Sheltered locations with poor air circulation"
+    ],
+    "temp_c_day": [
+      24,
+      32
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area shows damage (e.g., stippling, minor chewing). Pests are difficult to find.",
+    "moderate": "11-40% of leaf area is affected. Visible webbing on some leaves; leaf curling or distortion is apparent. Pests are visible upon inspection.",
+    "severe": ">40% of leaf area is damaged. Extensive webbing covers stems and leaves; significant defoliation or leaf browning; visible pest colonies.",
+    "notes": "Severity is estimated as the percentage of total leaf surface area showing signs of pest activity, including stippling, chewing, mining, webbing, or heavy sooty mold coverage."
+  },
+  "symptoms": {
+    "leaves": [
+      "Fine, pale yellow or white stippling on the upper leaf surface.",
+      "Leaves appear bronzed, silvery, or bleached from widespread stippling.",
+      "Irregular holes, notches, or skeletonized areas from chewing.",
+      "Winding, discolored trails (mines) are visible within the leaf tissue.",
+      "Leaves are curled, cupped, distorted, or stunted.",
+      "A sticky, clear substance (honeydew) coats leaf surfaces.",
+      "Black, soot-like fungal growth (sooty mold) develops on honeydew."
+    ],
+    "stems": [
+      "Fine, silk-like webbing may cover stems and new growth.",
+      "Visible scale insects or mealybugs are clustered on stems, particularly at nodes."
+    ],
+    "fruit": [],
+    "roots": [],
+    "whole_plant": [
+      "Stunted growth or reduced plant vigor.",
+      "Premature leaf drop (defoliation) in heavy infestations."
+    ],
+    "signs_microscopic_or_visible": [
+      "Tiny moving specks (mites) on the underside of leaves, sometimes with fine webbing.",
+      "Small, winged insects (e.g., whiteflies, thrips) that fly up when the plant is disturbed.",
+      "Visible caterpillars, aphids, or scale insects on leaves and stems.",
+      "Presence of frass (insect excrement), eggs, or cast skins."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Jasmine Leaf Spot",
+      "condition_id": "arabian.fungal.jasmine_leaf_spot",
+      "key_differences": [
+        "Leaf spots are discrete, often circular lesions with defined, sometimes darker, borders, whereas pest damage is typically stippling, irregular chewing, or trails.",
+        "Pest damage may include physical signs like webbing, frass, or the pests themselves, which are absent in fungal leaf spots.",
+        "Pest stippling is a pattern of tiny discolored dots; leaf spots are solid necrotic lesions that can have concentric rings."
+      ]
+    },
+    {
+      "condition_name": "Jasmine Chlorosis",
+      "condition_id": "arabian.abiotic.jasmine_chlorosis",
+      "key_differences": [
+        "Chlorosis is a more uniform yellowing, often in an interveinal pattern, while pest damage appears as discrete stipples, holes, or mines.",
+        "Chlorosis often affects entire leaves or follows a pattern (e.g., only new growth), whereas pest damage is distributed randomly where the pest has fed.",
+        "No physical signs like webbing, holes, or insects are present with chlorosis."
+      ]
+    },
+    {
+      "condition_name": "Jasmine Leaf Blight",
+      "condition_id": "arabian.fungal.jasmine_leaf_blight",
+      "key_differences": [
+        "Blight appears as large, rapidly expanding necrotic blotches, often starting at leaf tips or margins, unlike the smaller, more distinct damage from most pests.",
+        "Blighted areas often appear water-soaked before turning brown or black, a feature not seen with pest feeding.",
+        "Blight can cause rapid dieback of entire shoots, which is a more severe outcome than typical initial pest infestations."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Regularly inspect plants, especially the undersides of leaves, for early detection.",
+      "Prune and destroy heavily infested plant parts.",
+      "Use a strong jet of water to dislodge pests like aphids and spider mites.",
+      "Encourage natural predators by planting diverse species and avoiding broad-spectrum insecticides."
+    ],
+    "biological": [
+      "Introduce or conserve predatory insects such as ladybugs, lacewings, and predatory mites.",
+      "Use microbial insecticides like Bacillus thuringiensis (Bt) for caterpillar control."
+    ],
+    "chemical": [
+      "Apply insecticidal soaps or horticultural oils, ensuring thorough coverage of leaf undersides.",
+      "Use neem oil as a repellent and growth regulator for many pests.",
+      "For severe infestations, use targeted systemic or contact insecticides based on proper pest identification."
+    ],
+    "notes": "Always identify the specific pest before applying chemical controls to ensure effectiveness and minimize harm to beneficial insects."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/arabian/jasmine_senescence_or_dry.json b/diseases_knowledge_base/arabian/jasmine_senescence_or_dry.json
new file mode 100644
index 0000000000000000000000000000000000000000..df20eefc2680da85fa363f6d1f1605202d84a767
--- /dev/null
+++ b/diseases_knowledge_base/arabian/jasmine_senescence_or_dry.json
@@ -0,0 +1,109 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "arabian.physiological_symptom.jasmine_senescence_or_dry",
+  "aliases": [
+    "jasmine drought stress",
+    "jasmine water stress",
+    "jasmine leaf dieback",
+    "natural leaf aging"
+  ],
+  "crop": {
+    "common_name": "Arabian Jasmine",
+    "scientific_name": "Jasminum sambac",
+    "family": "Oleaceae"
+  },
+  "condition": {
+    "common_name": "Senescence or Dryness",
+    "scientific_name": null,
+    "alt_names": [
+      "Drought Stress",
+      "Water Stress",
+      "Natural Aging"
+    ],
+    "pathogen": {
+      "type": "physiological_disorder",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "physiological_symptom",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Inadequate or inconsistent watering",
+      "Low ambient humidity",
+      "High temperatures and intense sun exposure",
+      "Poorly draining or overly sandy soil",
+      "Root-bound conditions in containers"
+    ],
+    "temp_c_day": [
+      28,
+      38
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      0,
+      40
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaves, typically the oldest and lowest on the plant, show uniform yellowing or have brown, crispy tips.",
+    "moderate": "11-40% of leaves are yellow or brown, with some leaf drop evident. Minor wilting may be visible on younger stems.",
+    "severe": ">40% of the plant's foliage is affected, with significant leaf drop, widespread wilting, and visible stem dieback.",
+    "notes": "Severity is based on the total percentage of foliage exhibiting symptoms like yellowing, browning, wilting, or desiccation. The pattern of symptom distribution is also a key indicator."
+  },
+  "symptoms": {
+    "leaves": [
+      "Older, lower leaves turn a uniform, solid yellow before browning.",
+      "Leaf margins and tips dry out, turning brown and becoming brittle or crispy to the touch.",
+      "Affected leaves may curl inwards or downwards.",
+      "Leaves lose turgor and appear limp or wilted.",
+      "Widespread, premature leaf drop, especially of older leaves.",
+      "Unlike nutrient deficiencies, yellowing is typically not interveinal.",
+      "Unlike fungal spots, browning is generalized and lacks distinct lesion borders."
+    ],
+    "stems": [
+      "Younger, green stems may droop or wilt.",
+      "In severe cases, stem tips may shrivel and die back.",
+      "Stems may become woody and brittle."
+    ],
+    "fruit": [
+      "Flower buds may dry up and fall off before opening.",
+      "Open flowers may wilt and turn brown prematurely."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Overall drooping or wilting appearance.",
+      "Reduced growth rate and sparse foliage.",
+      "General lack of vigor and poor flowering."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [],
+  "management": {
+    "cultural": [
+      "Provide consistent moisture. Water thoroughly when the top 1-2 inches of soil are dry.",
+      "Avoid both waterlogging and complete soil dry-out.",
+      "Increase ambient humidity through misting, grouping plants, or using a pebble tray with water.",
+      "Mulch outdoor plants to conserve soil moisture.",
+      "Ensure containers have adequate drainage holes.",
+      "Protect from intense afternoon sun and hot, drying winds."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "Management is corrective and preventative, focusing on optimizing the plant's environment, particularly water availability and humidity."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/bitter/gourd_anthracnose.json b/diseases_knowledge_base/bitter/gourd_anthracnose.json
new file mode 100644
index 0000000000000000000000000000000000000000..40036468307e2915b2f475c4559848533d1e3f61
--- /dev/null
+++ b/diseases_knowledge_base/bitter/gourd_anthracnose.json
@@ -0,0 +1,129 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "bitter.disease_fungal.gourd_anthracnose",
+  "aliases": [
+    "bitter gourd fruit rot",
+    "cucurbit anthracnose"
+  ],
+  "crop": {
+    "common_name": "bitter gourd",
+    "scientific_name": "Momordica charantia",
+    "family": "Cucurbitaceae"
+  },
+  "condition": {
+    "common_name": "Gourd Anthracnose",
+    "scientific_name": "Colletotrichum orbiculare",
+    "alt_names": [
+      "anthracnose of cucurbits"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Sordariomycetes",
+        "order": "Glomerellales",
+        "family": "Glomerellaceae",
+        "genus": "Colletotrichum",
+        "species": "orbiculare"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "rain splash",
+      "wind-driven rain",
+      "contaminated tools",
+      "human activity",
+      "infected seed"
+    ],
+    "overwintering": [
+      "infected crop debris",
+      "infected seed",
+      "volunteer cucurbit plants"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "prolonged leaf wetness",
+      "high relative humidity (>90%)",
+      "warm temperatures",
+      "dense canopy with poor air circulation",
+      "overhead irrigation"
+    ],
+    "temp_c_day": [
+      22,
+      28
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 10
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf or fruit surface area affected. Lesions are few, small, and not coalescing.",
+    "moderate": "11-40% of surface area affected. Multiple lesions are present, some may be coalescing. Minor fruit rot or stem cankers are visible.",
+    "severe": ">40% of surface area affected. Widespread blighting, extensive lesion coalescence, severe fruit rot, and potential vine dieback.",
+    "notes": "Severity is assessed on the most affected plant part (leaf or fruit). For whole-plant assessment, consider the overall percentage of symptomatic tissue."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial symptoms are small, circular, water-soaked spots.",
+      "Spots enlarge to become dark brown or black, often with a slightly lighter center.",
+      "A distinct yellow halo may encircle older lesions.",
+      "The center of mature lesions often becomes brittle and falls out, creating a 'shot-hole' effect."
+    ],
+    "stems": [
+      "Elongated, sunken, dark-colored cankers can form on stems and petioles.",
+      "Severe cankers can girdle the vine, causing wilting and death of the plant parts beyond the canker."
+    ],
+    "fruit": [
+      "Circular, water-soaked, sunken spots appear on the fruit surface.",
+      "Lesions enlarge rapidly, turning black and becoming deeply sunken.",
+      "Under humid conditions, the center of the lesion fills with a pinkish or salmon-colored gelatinous mass of spores.",
+      "Infection leads to a bitter taste and rapid rotting of the fruit."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Stunted growth and reduced vigor in heavily infected plants.",
+      "Widespread defoliation and vine dieback can occur in severe epidemics."
+    ],
+    "signs_microscopic_or_visible": [
+      "Pink, orange, or salmon-colored, moist spore masses (acervuli) visible in the center of mature lesions, particularly on fruit."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Gourd Downy Mildew",
+      "condition_id": "bitter.disease_fungal.gourd_downy_mildew",
+      "key_differences": [
+        "Anthracnose lesions are circular and dark brown/black; Downy Mildew lesions are angular (vein-limited) and initially pale green or yellowish.",
+        "Anthracnose produces pink/orange spore masses in lesion centers; Downy Mildew produces a purplish-gray, fuzzy mold on the underside of leaves.",
+        "Anthracnose causes a 'shot-hole' symptom; Downy Mildew causes leaf necrosis but not distinct holes.",
+        "Anthracnose causes severe, sunken, black rot on fruit; Downy Mildew symptoms are primarily on the leaves."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified, disease-free seed.",
+      "Practice a crop rotation of at least 2 years with non-cucurbit crops.",
+      "Improve air circulation by using trellises and appropriate plant spacing.",
+      "Avoid overhead irrigation to minimize leaf wetness; prefer drip or furrow irrigation.",
+      "Remove and destroy infected plant debris promptly after harvest."
+    ],
+    "biological": [
+      "Application of bio-fungicides containing *Bacillus subtilis* or *Trichoderma* species may help suppress the disease."
+    ],
+    "chemical": [
+      "Apply protective fungicides like mancozeb or chlorothalonil before disease onset, especially during favorable weather conditions.",
+      "After infection, use systemic fungicides such as those in the strobilurin or triazole groups, rotating chemical classes to prevent resistance."
+    ],
+    "notes": "An integrated approach combining cultural practices with timely fungicide applications is most effective. Consult local agricultural extension services for currently recommended and registered products."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/bitter/gourd_downy_mildew.json b/diseases_knowledge_base/bitter/gourd_downy_mildew.json
new file mode 100644
index 0000000000000000000000000000000000000000..e5f65783ca617b1c076289207a2ef08694aee14f
--- /dev/null
+++ b/diseases_knowledge_base/bitter/gourd_downy_mildew.json
@@ -0,0 +1,139 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "bitter.disease_fungal.gourd_downy_mildew",
+  "aliases": [
+    "downy mildew of bitter gourd",
+    "cucurbit downy mildew on bitter gourd"
+  ],
+  "crop": {
+    "common_name": "bitter gourd",
+    "scientific_name": "Momordica charantia",
+    "family": "Cucurbitaceae"
+  },
+  "condition": {
+    "common_name": "gourd downy mildew",
+    "scientific_name": "Pseudoperonospora cubensis",
+    "alt_names": [
+      "cucurbit downy mildew"
+    ],
+    "pathogen": {
+      "type": "disease_oomycete",
+      "taxonomy": {
+        "kingdom": "Stramenopila",
+        "phylum": "Oomycota",
+        "class": "Oomycetes",
+        "order": "Peronosporales",
+        "family": "Peronosporaceae",
+        "genus": "Pseudoperonospora",
+        "species": "cubensis"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "wind-borne sporangia",
+      "water splash",
+      "contaminated tools",
+      "human activity"
+    ],
+    "overwintering": [
+      "on living cucurbit hosts in frost-free regions",
+      "in greenhouses on infected plant material"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high relative humidity",
+      "prolonged periods of leaf wetness",
+      "cool to moderate temperatures",
+      "dense plant canopy with poor air circulation"
+    ],
+    "temp_c_day": [
+      15,
+      23
+    ],
+    "temp_c_night": [
+      10,
+      18
+    ],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 6
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area affected. A few scattered, small, angular yellow spots are visible on the upper leaf surface.",
+    "moderate": "11-40% of leaf area affected. Lesions are more numerous, larger, and may begin to coalesce. Grayish-purple sporulation is visible on the leaf underside. Some necrotic browning may appear in the center of older lesions.",
+    "severe": ">40% of leaf area affected. Widespread leaf necrosis, blighting, and upward curling of leaf margins. Significant defoliation is occurring, exposing fruit to sunscald.",
+    "notes": "Severity is assessed on the most symptomatic leaves. The presence and density of sporulation on the abaxial (lower) leaf surface is a key diagnostic and severity indicator."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial symptoms are small, pale green or water-soaked spots on the upper leaf surface.",
+      "Lesions quickly become distinctly yellow (chlorotic) and angular, bounded by leaf veins.",
+      "On the corresponding lower leaf surface, a fuzzy, downy growth that is grayish to purplish-black appears, especially during periods of high humidity.",
+      "As the disease progresses, the angular yellow spots turn brown to black and become necrotic.",
+      "Multiple lesions often coalesce, leading to large, blighted areas on the leaf.",
+      "Severely infected leaves become brittle, curl upwards, and may drop prematurely (defoliation).",
+      "Lesions are most common on older, crown leaves first."
+    ],
+    "stems": [
+      "Stems are typically not directly affected."
+    ],
+    "fruit": [
+      "Fruit is not directly infected, but its size, quality, and quantity are reduced due to loss of photosynthetic area from defoliation.",
+      "Premature defoliation can lead to sunscald on developing fruit."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Reduced plant vigor and stunted growth.",
+      "Significant yield loss in severe infections."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible grayish-purple, downy sporulation (sporangiophores and sporangia) on the abaxial (lower) leaf surface, corresponding to the yellow lesions on top."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "gourd anthracnose",
+      "condition_id": "bitter.disease_fungal.gourd_anthracnose",
+      "key_differences": [
+        "Lesion Shape: Anthracnose lesions are circular to irregular with dark, defined borders, often developing a 'shot-hole' appearance, whereas downy mildew lesions are strictly angular and vein-limited.",
+        "Signs: Downy mildew produces a grayish-purple fuzzy growth on the leaf underside, while anthracnose may produce pinkish-orange spore masses in concentric rings within the lesion during wet weather.",
+        "Affected Parts: Anthracnose commonly causes sunken, dark cankers on stems and fruit, which is not a symptom of downy mildew."
+      ]
+    },
+    {
+      "condition_name": "gourd healthy",
+      "condition_id": "bitter.misc.gourd_healthy",
+      "key_differences": [
+        "Color: Healthy leaves have a uniform green color, lacking the distinct angular yellow (chlorotic) or brown (necrotic) spots of downy mildew.",
+        "Texture: The underside of a healthy leaf is smooth and green, without the fuzzy, grayish-purple growth characteristic of downy mildew.",
+        "Overall Appearance: A healthy plant shows vigorous growth with a full canopy, not the premature leaf drop or blighting seen in severe downy mildew infections."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant resistant or tolerant cultivars when available.",
+      "Maximize air circulation by using recommended plant spacing and trellising.",
+      "Use drip irrigation instead of overhead sprinklers to minimize leaf wetness duration.",
+      "Scout fields regularly, especially after cool, moist weather events.",
+      "Remove and destroy infected plant debris at the end of the season.",
+      "Practice crop rotation with non-cucurbit crops for at least 2-3 years."
+    ],
+    "biological": [
+      "Applications of bio-fungicides containing *Bacillus subtilis* or *Streptomyces* species may provide some suppression when used preventatively."
+    ],
+    "chemical": [
+      "Apply protectant fungicides (e.g., mancozeb, chlorothalonil) before disease onset, especially when weather forecasts are favorable for infection.",
+      "Use systemic or translaminar fungicides (e.g., cymoxanil, mandipropamid, oxathiapiprolin) for curative action, following local regulations.",
+      "Rotate fungicides with different modes of action (FRAC groups) to prevent the development of pathogen resistance."
+    ],
+    "notes": "Effective management relies on an integrated approach. Chemical control is most effective when combined with cultural practices that reduce environmental risk."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/bitter/gourd_healthy.json b/diseases_knowledge_base/bitter/gourd_healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..2adc51c45830c8d1451b8c734908665ff6339650
--- /dev/null
+++ b/diseases_knowledge_base/bitter/gourd_healthy.json
@@ -0,0 +1,130 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "bitter.unknown.gourd_healthy",
+  "aliases": [
+    "healthy bitter gourd",
+    "normal bitter gourd",
+    "asymptomatic bitter gourd"
+  ],
+  "crop": {
+    "common_name": "bitter gourd",
+    "scientific_name": "Momordica charantia",
+    "family": "Cucurbitaceae"
+  },
+  "condition": {
+    "common_name": "healthy",
+    "scientific_name": null,
+    "alt_names": [
+      "asymptomatic",
+      "normal"
+    ],
+    "pathogen": {
+      "type": "abiotic",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Optimal growing conditions",
+      "Absence of pathogen pressure",
+      "Proper nutrition and irrigation"
+    ],
+    "temp_c_day": [
+      25,
+      32
+    ],
+    "temp_c_night": [
+      18,
+      22
+    ],
+    "relative_humidity_pct": [
+      60,
+      75
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Plant is fully asymptomatic. No visible lesions, discoloration, or malformation on any plant part.",
+    "moderate": "N/A",
+    "severe": "N/A",
+    "notes": "This rubric confirms the absence of disease. Any visible symptoms would classify the plant as unhealthy and require a different diagnosis."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uniformly green color, from light to dark green depending on variety and age.",
+      "Leaves are deeply lobed, typically with 5-7 lobes.",
+      "Leaf surfaces are free of spots, lesions, yellowing (chlorosis), or powdery growth.",
+      "Leaf blades are turgid and well-expanded.",
+      "Petioles are firm and green without cankers."
+    ],
+    "stems": [
+      "Stems are green, slender, and exhibit vigorous vining.",
+      "No cankers, lesions, or discoloration present.",
+      "Tendrils are green and functional."
+    ],
+    "fruit": [
+      "Fruit shape is characteristic of the variety, typically oblong or ovoid.",
+      "Skin is warty or bumpy with a uniform green color (may turn yellow/orange when fully ripe).",
+      "No sunken spots, soft rots, or oozing substances."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Vigorous and upright or vining growth habit.",
+      "No stunting, wilting, or general decline."
+    ],
+    "signs_microscopic_or_visible": [
+      "No visible fungal growth (mycelium, spores), bacterial ooze, or other pathogen signs."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "gourd anthracnose",
+      "condition_id": "bitter.fungal.gourd_anthracnose",
+      "key_differences": [
+        "Healthy leaves are uniformly green, while anthracnose causes water-soaked, circular, dark-brown to black spots, often with a yellow halo.",
+        "Healthy fruit has firm, unblemished skin, whereas anthracnose causes circular, sunken, black cankers on the fruit, which may ooze pinkish spore masses.",
+        "Healthy stems are clean and green; anthracnose can cause elongated, dark lesions on stems."
+      ]
+    },
+    {
+      "condition_name": "gourd downy mildew",
+      "condition_id": "bitter.oomycete.gourd_downy_mildew",
+      "key_differences": [
+        "Healthy leaves have a uniform green upper surface, whereas downy mildew causes angular, yellow to brownish spots on the upper leaf surface, bounded by leaf veins.",
+        "The underside of a healthy leaf is clean, while downy mildew produces a purplish-gray, fuzzy or 'downy' growth on the underside of leaf spots, especially in humid conditions.",
+        "Healthy leaves remain turgid, while leaves with severe downy mildew may become necrotic, curl, and die."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified disease-free seeds or transplants.",
+      "Ensure proper plant spacing to promote good air circulation.",
+      "Practice crop rotation with non-cucurbit crops.",
+      "Use drip irrigation or avoid overhead watering to minimize leaf wetness.",
+      "Maintain balanced soil fertility based on soil testing."
+    ],
+    "biological": [
+      "Promote beneficial soil microbes through the application of compost and organic matter."
+    ],
+    "chemical": [
+      "Not applicable for a healthy plant. Management focuses on preventative cultural practices."
+    ],
+    "notes": "Management practices for a healthy plant are preventative, aiming to maintain vigor and avoid conditions favorable for disease development."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/blueberry/healthy.json b/diseases_knowledge_base/blueberry/healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..25db4fc37b5dcbe003c6a15d4b0cb35c3c3d3b35
--- /dev/null
+++ b/diseases_knowledge_base/blueberry/healthy.json
@@ -0,0 +1,114 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "blueberry.healthy.healthy",
+  "aliases": [
+    "normal",
+    "asymptomatic",
+    "unaffected"
+  ],
+  "crop": {
+    "common_name": "blueberry",
+    "scientific_name": "Vaccinium corymbosum",
+    "family": "Ericaceae"
+  },
+  "condition": {
+    "common_name": "healthy",
+    "scientific_name": "",
+    "alt_names": [
+      "asymptomatic",
+      "normal growth"
+    ],
+    "pathogen": {
+      "type": "none",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "healthy",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Optimal sunlight exposure (6-8 hours/day)",
+      "Well-drained, acidic soil (pH 4.5-5.5)",
+      "Consistent soil moisture without waterlogging",
+      "Good air circulation through and around the plant canopy"
+    ],
+    "temp_c_day": [
+      20,
+      27
+    ],
+    "temp_c_night": [
+      10,
+      18
+    ],
+    "relative_humidity_pct": [
+      50,
+      70
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Not applicable.",
+    "moderate": "Not applicable.",
+    "severe": "Not applicable.",
+    "notes": "For a 'healthy' condition, there is no severity scale. Any presence of symptoms would classify the plant under a different condition (e.g., a disease or disorder)."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uniformly deep green color, though new growth can be reddish.",
+      "Leaves are fully expanded, smooth, and have a slightly waxy surface.",
+      "No spots, lesions, discoloration, or signs of necrosis.",
+      "Leaf margins are smooth and intact.",
+      "Seasonal color change to red or orange in autumn is normal."
+    ],
+    "stems": [
+      "New stems (canes) are smooth, flexible, and green or reddish.",
+      "Older stems are woody, gray-brown, and firm.",
+      "No cankers, galls, cracks, or dieback is visible."
+    ],
+    "fruit": [
+      "Developing fruit is small, firm, and green.",
+      "Mature fruit is plump, firm, and has a uniform dark blue color.",
+      "A waxy, silvery-white coating ('bloom') is present on mature berries.",
+      "No signs of shriveling, mold, or spots."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Exhibits vigorous, upright growth.",
+      "Possesses a full, dense canopy of leaves appropriate for the season.",
+      "Shows active new growth on cane tips during the growing season."
+    ],
+    "signs_microscopic_or_visible": [
+      "No visible fungal structures (e.g., mycelium, spores), bacterial ooze, or insect colonies."
+    ]
+  },
+  "lookalikes": [],
+  "management": {
+    "cultural": [
+      "Plant in well-drained, acidic soil rich in organic matter.",
+      "Ensure full sun exposure for optimal photosynthesis and fruit production.",
+      "Provide consistent irrigation, especially during fruit development.",
+      "Apply a layer of mulch (e.g., pine bark, sawdust) to conserve moisture and suppress weeds.",
+      "Conduct annual dormant pruning to remove dead/weak wood and improve air circulation."
+    ],
+    "biological": [
+      "Promote biodiversity to support natural predators of common pests."
+    ],
+    "chemical": [
+      "Not applicable for maintaining health; chemical controls are reactive measures for specific issues."
+    ],
+    "notes": "Maintaining plant health is primarily achieved through proactive and consistent cultural practices tailored to the crop's needs."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/bottle/gourd_anthracnose.json b/diseases_knowledge_base/bottle/gourd_anthracnose.json
new file mode 100644
index 0000000000000000000000000000000000000000..42a820527e7c4704f8b0c7a0d2499b90a5a569e0
--- /dev/null
+++ b/diseases_knowledge_base/bottle/gourd_anthracnose.json
@@ -0,0 +1,139 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "bottle.disease_fungal.gourd_anthracnose",
+  "aliases": [
+    "cucurbit anthracnose",
+    "gourd fruit rot"
+  ],
+  "crop": {
+    "common_name": "bottle gourd",
+    "scientific_name": "Lagenaria siceraria",
+    "family": "Cucurbitaceae"
+  },
+  "condition": {
+    "common_name": "gourd anthracnose",
+    "scientific_name": "Colletotrichum orbiculare",
+    "alt_names": [
+      "cucurbit anthracnose"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Sordariomycetes",
+        "order": "Glomerellales",
+        "family": "Glomerellaceae",
+        "genus": "Colletotrichum",
+        "species": "orbiculare"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "rain splash",
+      "wind-driven rain",
+      "contaminated tools",
+      "field workers",
+      "infected seed"
+    ],
+    "overwintering": [
+      "infected crop debris",
+      "infected seed",
+      "volunteer cucurbit plants"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "prolonged leaf wetness",
+      "high humidity",
+      "warm temperatures",
+      "poor air circulation",
+      "overhead irrigation"
+    ],
+    "temp_c_day": [
+      22,
+      28
+    ],
+    "temp_c_night": [
+      18,
+      24
+    ],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 10
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area affected, or < 5 small lesions per leaf. No significant stem or fruit lesions.",
+    "moderate": "11-40% of leaf area affected, multiple coalescing lesions on leaves, some small, non-rotting lesions on fruit or stems.",
+    "severe": ">40% of leaf area affected, extensive stem cankers causing vine dieback, or large, sunken, rotting lesions on multiple fruits.",
+    "notes": "Severity is assessed based on the percentage of symptomatic tissue on the most affected leaves and the presence/size of lesions on stems and fruit. Fruit symptoms heavily increase severity rating."
+  },
+  "symptoms": {
+    "leaves": [
+      "Begins as small, water-soaked spots.",
+      "Spots enlarge into circular, dark brown to black lesions, often up to 1-2 cm in diameter.",
+      "Lesion centers may dry out, turn tan or gray, and crack or fall out, creating a 'shot-hole' appearance.",
+      "A distinct dark border often surrounds the lighter center of mature lesions."
+    ],
+    "stems": [
+      "Develops elongated, sunken, water-soaked cankers that turn dark.",
+      "Cankers can girdle the stem, causing wilting and dieback of the vine above the infection point."
+    ],
+    "fruit": [
+      "Circular, water-soaked, and noticeably sunken spots appear on the fruit surface.",
+      "Lesions enlarge, turn black, and can coalesce to cover large areas.",
+      "During humid conditions, a pinkish or salmon-colored ooze of fungal spores may appear in the center of fruit lesions."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "General wilting or vine dieback can occur if stems are severely girdled by cankers."
+    ],
+    "signs_microscopic_or_visible": [
+      "Pink to salmon-colored spore masses (acervuli) visible in the center of lesions, especially on fruit, during moist weather."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "gourd downy mildew",
+      "condition_id": "bottle.disease_fungal.gourd_downy_mildew",
+      "key_differences": [
+        "Downy mildew lesions are angular and bounded by leaf veins, appearing yellow on top; anthracnose lesions are circular and dark.",
+        "Downy mildew produces a purplish-gray, fuzzy mold on the leaf underside; anthracnose may have a pinkish ooze in lesion centers but no fuzzy mold.",
+        "Anthracnose causes distinct, large, sunken black cankers on fruit, which is not a primary symptom of downy mildew."
+      ]
+    },
+    {
+      "condition_name": "gourd pest damage",
+      "condition_id": "bottle.pest.gourd_pest_damage",
+      "key_differences": [
+        "Pest damage often involves physical injury like chewing marks or stippling, not the characteristic water-soaked, circular, developing lesions of anthracnose.",
+        "Anthracnose lesions are a sign of infection and expand over time, while pest damage is typically static after the feeding event.",
+        "The presence of insects, eggs, or frass (excrement) indicates pest damage, whereas anthracnose may show pink spore masses."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified disease-free seed.",
+      "Practice a crop rotation of at least 2-3 years with non-cucurbit crops.",
+      "Promote air circulation by using trellises and appropriate plant spacing.",
+      "Avoid overhead irrigation to minimize leaf wetness; use drip irrigation.",
+      "Remove and destroy infected plant debris at the end of the season."
+    ],
+    "biological": [
+      "Biofungicides containing strains of *Bacillus subtilis* may provide some preventative suppression."
+    ],
+    "chemical": [
+      "Apply preventative fungicides, especially during warm, wet weather.",
+      "Effective active ingredients include mancozeb, chlorothalonil, and copper-based compounds.",
+      "For curative action, fungicides in the strobilurin class (e.g., azoxystrobin) can be used, but must be rotated to prevent resistance."
+    ],
+    "notes": "Chemical control is most effective when used preventatively. Follow label instructions and pre-harvest intervals carefully."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/bottle/gourd_downy_mildew.json b/diseases_knowledge_base/bottle/gourd_downy_mildew.json
new file mode 100644
index 0000000000000000000000000000000000000000..2d4befe4212e9e75443ad912490c8cba19fd5b7d
--- /dev/null
+++ b/diseases_knowledge_base/bottle/gourd_downy_mildew.json
@@ -0,0 +1,121 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "bottle.disease_fungal.gourd_downy_mildew",
+  "aliases": [
+    "downy mildew of bottle gourd",
+    "cucurbit downy mildew on bottle gourd"
+  ],
+  "crop": {
+    "common_name": "bottle gourd",
+    "scientific_name": "Lagenaria siceraria",
+    "family": "Cucurbitaceae"
+  },
+  "condition": {
+    "common_name": "downy mildew",
+    "scientific_name": "Pseudoperonospora cubensis",
+    "alt_names": [
+      "cucurbit downy mildew"
+    ],
+    "pathogen": {
+      "type": "disease_oomycete",
+      "taxonomy": {
+        "kingdom": "Stramenopila",
+        "phylum": "Oomycota",
+        "class": "Oomycetes",
+        "order": "Peronosporales",
+        "family": "Peronosporaceae",
+        "genus": "Pseudoperonospora",
+        "species": "cubensis"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [
+      "wind",
+      "rain splash"
+    ],
+    "dispersal": [
+      "airborne sporangia"
+    ],
+    "overwintering": [
+      "on living cucurbit hosts in tropical/subtropical regions",
+      "as oospores in soil (less common for this pathogen)"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high relative humidity",
+      "prolonged leaf wetness",
+      "cool nights and warm, humid days",
+      "dense plant canopy with poor air circulation"
+    ],
+    "temp_c_day": [
+      16,
+      22
+    ],
+    "temp_c_night": [
+      10,
+      18
+    ],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 6
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area affected. A few scattered, pale green to yellow angular lesions, primarily on older leaves.",
+    "moderate": "11-40% of leaf area affected. Lesions are numerous, may be coalescing, and some necrosis is present. Downy growth is clearly visible on leaf undersides.",
+    "severe": ">40% of leaf area affected. Widespread necrosis and blighting of leaves, leading to significant defoliation.",
+    "notes": "Severity is assessed by the percentage of total foliar area showing symptoms (chlorosis and necrosis). Confirmation of diagnosis often requires checking the underside of leaves for sporulation."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial symptoms are pale green or yellowish, water-soaked spots on the upper leaf surface.",
+      "Lesions are characteristically angular or 'blocky' in shape, as their expansion is limited by major leaf veins.",
+      "Spots enlarge and turn bright yellow, eventually becoming necrotic and turning brown to dark brown.",
+      "A purplish-gray, fuzzy or 'downy' growth (sporangia) is visible on the underside of the leaf, corresponding to the upper lesions, especially in the morning or during high humidity.",
+      "Infected leaves may curl downwards, wither, and die prematurely, starting from the bottom of the plant.",
+      "Severely affected leaves can look scorched or blighted."
+    ],
+    "stems": [
+      "Stems are typically not directly affected."
+    ],
+    "fruit": [
+      "Fruit is not directly infected by the pathogen.",
+      "Fruit may be smaller, misshapen, or have poor flavor due to reduced photosynthesis from defoliation.",
+      "Loss of leaf cover can expose fruit to sunscald, causing white, leathery patches."
+    ],
+    "roots": [
+      "No direct symptoms on roots."
+    ],
+    "whole_plant": [
+      "Reduced plant vigor and stunted growth.",
+      "Significant defoliation can occur rapidly under favorable conditions, starting with lower leaves."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible sign is the characteristic purplish-gray downy mold on the abaxial (lower) leaf surface."
+    ]
+  },
+  "lookalikes": [],
+  "management": {
+    "cultural": [
+      "Use resistant or tolerant cultivars when available.",
+      "Promote good air circulation through proper plant spacing and trellising.",
+      "Avoid overhead irrigation to minimize leaf wetness duration; use drip irrigation instead.",
+      "Manage weeds to improve airflow and reduce humidity within the canopy.",
+      "Scout plants regularly, especially during cool, moist weather."
+    ],
+    "biological": [
+      "Application of bio-fungicides based on Bacillus subtilis or Trichoderma species can have some suppressive effect when used preventatively."
+    ],
+    "chemical": [
+      "Preventative fungicide applications are most effective.",
+      "Apply fungicides with translaminar or systemic activity that target oomycetes (e.g., products containing mandipropamid, cyazofamid, or phosphonates).",
+      "Rotate fungicide modes of action to prevent resistance development."
+    ],
+    "notes": "Management must be proactive, as downy mildew can spread very quickly once established. Predictive models based on weather data can help time fungicide applications."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/bottle/gourd_healthy.json b/diseases_knowledge_base/bottle/gourd_healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..44a7511603561f5fdc4cc72a45b31f194655ba2f
--- /dev/null
+++ b/diseases_knowledge_base/bottle/gourd_healthy.json
@@ -0,0 +1,150 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "bottle.unknown.gourd_healthy",
+  "aliases": [
+    "healthy bottle gourd",
+    "normal bottle gourd",
+    "unaffected plant"
+  ],
+  "crop": {
+    "common_name": "bottle gourd",
+    "scientific_name": "Lagenaria siceraria",
+    "family": "Cucurbitaceae"
+  },
+  "condition": {
+    "common_name": "healthy",
+    "scientific_name": null,
+    "alt_names": [
+      "normal",
+      "asymptomatic",
+      "unaffected"
+    ],
+    "pathogen": {
+      "type": "none",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Describes optimal conditions; deviations are risks.",
+      "Poorly drained soil",
+      "Shaded conditions (<6 hours of direct sun)",
+      "Nutrient-poor soil",
+      "Extreme temperature fluctuations"
+    ],
+    "temp_c_day": [
+      24,
+      35
+    ],
+    "temp_c_night": [
+      18,
+      24
+    ],
+    "relative_humidity_pct": [
+      60,
+      80
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Plant is vigorous with normal coloration and turgor. No visible signs of disease, pests, or nutritional stress.",
+    "moderate": "Not applicable. Any deviation from 'mild' indicates a potential problem.",
+    "severe": "Not applicable. Any deviation from 'mild' indicates a potential problem.",
+    "notes": "This rubric is used to confirm the absence of symptoms. The 'mild' category represents a healthy plant."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uniformly green color, ranging from light to dark green depending on age and variety.",
+      "Leaves are fully expanded, turgid, and appropriately sized for their developmental stage.",
+      "Surfaces are free of spots, lesions, discoloration, or powdery/fuzzy growth.",
+      "Leaf margins are smooth and intact, without yellowing, browning, or necrosis.",
+      "Petioles are strong, green, and hold the leaves firmly."
+    ],
+    "stems": [
+      "Stems and vines are firm, green, and show signs of active growth.",
+      "No cankers, lesions, discoloration, or gummy exudates are present.",
+      "Tendrils are green, flexible, and actively curling."
+    ],
+    "fruit": [
+      "Fruit skin is firm, smooth, and has a uniform, unblemished color characteristic of the variety.",
+      "No sunken spots, soft spots, cracks, or signs of rot.",
+      "The peduncle (fruit stalk) is green, firm, and securely attached."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Exhibits a vigorous, sprawling or climbing growth habit.",
+      "Shows evidence of new, healthy growth such as young leaves, flowers, or developing fruit.",
+      "Plant is not wilted, stunted, or showing signs of dieback."
+    ],
+    "signs_microscopic_or_visible": [
+      "Absence of any visible fungal mycelium, spores, bacterial ooze, insect colonies, or feeding damage."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "gourd_anthracnose",
+      "condition_id": "bottle.fungal.gourd_anthracnose",
+      "key_differences": [
+        "Healthy leaves are uniformly green, whereas anthracnose causes distinct, water-soaked circular lesions that turn dark brown or black.",
+        "Healthy fruit is unblemished; anthracnose causes sunken, circular, dark lesions, often with pinkish spore masses in the center under moist conditions.",
+        "Healthy stems are clean; anthracnose may cause elongated, dark, sunken cankers on stems and petioles."
+      ]
+    },
+    {
+      "condition_name": "gourd_downy_mildew",
+      "condition_id": "bottle.oomycete.gourd_downy_mildew",
+      "key_differences": [
+        "The upper surface of healthy leaves is uniformly green, while downy mildew causes pale green to yellow, angular spots bounded by leaf veins.",
+        "The underside of a healthy leaf is plain green; downy mildew exhibits a distinct purplish-gray, fuzzy growth on the underside of lesions, especially in high humidity.",
+        "Healthy leaves do not have angular patterns; the vein-limited nature of downy mildew lesions is a key diagnostic feature."
+      ]
+    },
+    {
+      "condition_name": "gourd_nutritional_deficiency",
+      "condition_id": "bottle.abiotic.gourd_nutritional_deficiency",
+      "key_differences": [
+        "Healthy leaves have a solid, uniform green color, whereas deficiencies cause specific patterns like interveinal chlorosis (yellowing between green veins) or marginal yellowing.",
+        "Healthy growth is uniform across the plant, while deficiencies often show a systematic pattern, affecting either older (mobile nutrients) or younger (immobile nutrients) leaves first.",
+        "The overall plant color is a rich green in healthy plants, but can be pale green or yellowish in the case of nitrogen deficiency."
+      ]
+    },
+    {
+      "condition_name": "gourd_senescence_or_dry",
+      "condition_id": "bottle.abiotic.gourd_senescence_or_dry",
+      "key_differences": [
+        "Healthy leaves are turgid and green; drought stress causes temporary wilting of the entire plant, which recovers with water.",
+        "Natural senescence is a gradual, uniform yellowing of the oldest, lowest leaves on the plant, while the rest of the plant remains healthy.",
+        "Disease or acute stress often presents as spots, lesions, or rapid, irregular browning, unlike the orderly progression of senescence."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant in well-drained, fertile soil rich in organic matter.",
+      "Ensure full sun exposure (at least 6-8 hours per day).",
+      "Provide consistent moisture, watering at the base of the plant to keep foliage dry.",
+      "Use trellises to promote air circulation and lift fruit off the ground.",
+      "Practice crop rotation with non-cucurbit crops to prevent soil-borne pathogen buildup."
+    ],
+    "biological": [],
+    "chemical": [
+      "Not applicable for a healthy plant. Chemical controls are reactive, not preventative for general health."
+    ],
+    "notes": "Maintaining optimal growing conditions is the key to preventing disease and stress."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/bottle/gourd_nutritional_deficiency.json b/diseases_knowledge_base/bottle/gourd_nutritional_deficiency.json
new file mode 100644
index 0000000000000000000000000000000000000000..d69e039a6a3ec08c81f4eab4501c81ccb876287c
--- /dev/null
+++ b/diseases_knowledge_base/bottle/gourd_nutritional_deficiency.json
@@ -0,0 +1,107 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "bottle.nutrient_deficiency.gourd_nutritional_deficiency",
+  "aliases": [
+    "bottle gourd nutrient stress",
+    "bottle gourd mineral deficiency",
+    "bottle gourd nutrient imbalance"
+  ],
+  "crop": {
+    "common_name": "bottle gourd",
+    "scientific_name": "Lagenaria siceraria",
+    "family": "Cucurbitaceae"
+  },
+  "condition": {
+    "common_name": "nutritional deficiency",
+    "scientific_name": "",
+    "alt_names": [
+      "nutrient imbalance",
+      "mineral deficiency"
+    ],
+    "pathogen": {
+      "type": "abiotic",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "nutrient_deficiency",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "improper soil pH (too high or too low)",
+      "sandy soils prone to nutrient leaching",
+      "heavy rainfall causing nutrient runoff",
+      "low soil organic matter",
+      "competition from weeds",
+      "waterlogged soil reducing nutrient uptake"
+    ],
+    "temp_c_day": [],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of total plant foliage shows discoloration (chlorosis) or minor stunting. Symptoms are often confined to either old or new leaves.",
+    "moderate": "11-40% of foliage is affected. Chlorosis is more pronounced, and some marginal or interveinal necrosis (browning) may be present. Stunting is evident.",
+    "severe": ">40% of foliage is severely chlorotic or necrotic. Significant stunting, poor fruit development (e.g., blossom-end rot), and leaf drop are common. Plant death is possible.",
+    "notes": "Severity is assessed based on the percentage of the entire plant's foliage showing symptoms. The location of symptoms (old vs. new leaves) is a key diagnostic clue for specific nutrient deficiencies but overall percentage reflects severity."
+  },
+  "symptoms": {
+    "leaves": [
+      "General chlorosis (pale green to yellow discoloration) across the leaf blade.",
+      "Interveinal chlorosis, where leaf veins remain green while the tissue between them turns yellow.",
+      "Yellowing, scorching, or necrosis starting at the margins of older, lower leaves (e.g., Potassium deficiency).",
+      "Uniform pale green or yellowing of older, lower leaves, which may drop prematurely (e.g., Nitrogen deficiency).",
+      "Stunted, small, and pale new leaves (e.g., Iron or Sulfur deficiency).",
+      "Leaves may appear cupped, crinkled, or distorted.",
+      "Purplish discoloration on leaves, particularly on older leaves in cool conditions (e.g., Phosphorus deficiency)."
+    ],
+    "stems": [
+      "Stems are thin, spindly, and weak.",
+      "Shortened internodes result in a compact, stunted appearance."
+    ],
+    "fruit": [
+      "Poor fruit set or premature fruit drop.",
+      "Fruits are small, misshapen, or have poor color.",
+      "Blossom-end rot, a dark, sunken lesion at the blossom end of the fruit (Calcium deficiency)."
+    ],
+    "roots": [
+      "Poorly developed, stunted, or discolored root system (not typically visible in photos)."
+    ],
+    "whole_plant": [
+      "Overall stunted growth and lack of vigor compared to healthy plants.",
+      "Premature senescence (aging) and death of lower leaves."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [],
+  "management": {
+    "cultural": [
+      "Conduct a soil test before planting to determine pH and existing nutrient levels.",
+      "Amend soil with compost or other organic matter to improve nutrient retention and availability.",
+      "Adjust soil pH to the optimal range for bottle gourds (6.0-6.8) using lime or sulfur as needed.",
+      "Ensure consistent and adequate watering to facilitate nutrient uptake and prevent drought stress.",
+      "Use a balanced fertilizer according to soil test recommendations."
+    ],
+    "biological": [],
+    "chemical": [
+      "Apply a balanced, complete fertilizer (e.g., 10-10-10) if a soil test is unavailable.",
+      "Use foliar sprays containing specific micronutrients (e.g., chelated iron, magnesium sulfate) for rapid but temporary correction of deficiencies.",
+      "Side-dress with nitrogen fertilizer during the growing season as gourds are heavy feeders.",
+      "Apply calcium nitrate or gypsum to prevent blossom-end rot if calcium is deficient."
+    ],
+    "notes": "Accurate diagnosis of the specific nutrient is key. Applying a nutrient that is not deficient can create further imbalances. Soil or tissue analysis is the most reliable diagnostic method."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/bottle/gourd_pest_damage.json b/diseases_knowledge_base/bottle/gourd_pest_damage.json
new file mode 100644
index 0000000000000000000000000000000000000000..3728111e8b6cceb5ef6016ebf9a83811ca3ea421
--- /dev/null
+++ b/diseases_knowledge_base/bottle/gourd_pest_damage.json
@@ -0,0 +1,145 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "bottle.unknown.gourd_pest_damage",
+  "aliases": [
+    "insect damage on bottle gourd",
+    "bottle gourd pest feeding",
+    "arthropod injury on bottle gourd"
+  ],
+  "crop": {
+    "common_name": "bottle gourd",
+    "scientific_name": "Lagenaria siceraria",
+    "family": "Cucurbitaceae"
+  },
+  "condition": {
+    "common_name": "Gourd Pest Damage",
+    "scientific_name": "",
+    "alt_names": [
+      "insect feeding injury",
+      "pest injury"
+    ],
+    "pathogen": {
+      "type": "Pest",
+      "taxonomy": {
+        "kingdom": "Animalia",
+        "phylum": "Arthropoda",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [
+      "adult insects",
+      "larvae",
+      "nymphs"
+    ],
+    "dispersal": [
+      "flight",
+      "crawling",
+      "wind dispersal (for small insects)"
+    ],
+    "overwintering": [
+      "in crop debris",
+      "in soil as pupae or eggs",
+      "on alternate weed hosts"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "warm, dry weather (favors mites, some beetles)",
+      "high humidity (favors some caterpillars)",
+      "presence of alternate weed hosts",
+      "monoculture planting",
+      "lack of natural predators"
+    ],
+    "temp_c_day": [
+      20,
+      35
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area shows signs of feeding (chewing, stippling, mining). Little to no impact on plant vigor.",
+    "moderate": "11-40% of leaf area is affected. Some leaf yellowing, curling, or minor defoliation may be present.",
+    "severe": ">40% of leaf area is affected. Significant defoliation, plant stunting, wilting, or fruit damage is evident.",
+    "notes": "Severity is estimated based on the total visible damage across the leaf surface. For fruit damage, a qualitative assessment (e.g., number of feeding sites) may be used."
+  },
+  "symptoms": {
+    "leaves": [
+      "Irregularly shaped holes chewed in the leaf lamina.",
+      "Skeletonization, where only the leaf veins remain.",
+      "Small, numerous yellow or white dots (stippling) on the upper leaf surface from sucking insects.",
+      "Winding, discolored trails or blotches (mines) within the leaf tissue.",
+      "Leaves appear curled, distorted, or crinkled, especially new growth.",
+      "A shiny, sticky substance (honeydew) on leaf surfaces.",
+      "Black, soot-like fungal growth (sooty mold) on honeydew.",
+      "Presence of silk webbing on or between leaves."
+    ],
+    "stems": [
+      "Boring holes or tunnels visible in vines.",
+      "Wilting of vines above the point of feeding damage."
+    ],
+    "fruit": [
+      "Superficial scarring, pitting, or 'stinging' on the fruit surface.",
+      "Sunken, discolored areas from feeding.",
+      "Boring holes, sometimes with insect frass (excrement) pushed out.",
+      "Deformed or misshapen fruit growth."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Stunted growth or reduced vigor.",
+      "General wilting of the plant, even with sufficient soil moisture."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible adult insects, larvae (caterpillars, grubs), or nymphs.",
+      "Clusters of eggs, often on the undersides of leaves.",
+      "Frass (insect excrement) on leaves or near feeding sites."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Gourd Anthracnose",
+      "condition_id": "bottle.fungal.gourd_anthracnose",
+      "key_differences": [
+        "Anthracnose lesions are circular to angular, often water-soaked and sunken with dark borders, whereas pest damage is typically irregular holes (chewing) or fine stippling (sucking).",
+        "Pest damage may have visible signs like insects, eggs, or frass, which are absent in anthracnose.",
+        "In moist conditions, anthracnose lesions may develop pinkish-orange spore masses in the center, a feature not seen with pest damage."
+      ]
+    },
+    {
+      "condition_name": "Gourd Downy Mildew",
+      "condition_id": "bottle.oomycete.gourd_downy_mildew",
+      "key_differences": [
+        "Downy mildew causes angular, vein-limited yellow spots on the upper leaf surface, unlike the random stippling or irregular holes from pests.",
+        "A key sign of downy mildew is a purplish-gray fuzzy growth on the underside of the leaf spots, which is absent in pest damage.",
+        "Downy mildew does not create holes or skeletonize leaves; the tissue within the spots dies and turns necrotic but remains intact initially."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use floating row covers on young plants to create a physical barrier.",
+      "Remove and destroy heavily infested plants and crop debris after harvest.",
+      "Practice crop rotation with non-cucurbit crops.",
+      "Encourage natural enemies by planting nectar-rich flowers nearby."
+    ],
+    "biological": [
+      "Introduce or conserve predatory insects such as lady beetles, lacewings, and parasitic wasps.",
+      "Apply microbial insecticides like Bacillus thuringiensis (Bt) for caterpillar control."
+    ],
+    "chemical": [
+      "Apply insecticidal soaps or horticultural oils for soft-bodied pests like aphids and mites.",
+      "Use selective insecticides (e.g., spinosad) to target specific pests while minimizing harm to pollinators.",
+      "For severe infestations, broad-spectrum insecticides may be used according to local recommendations and pre-harvest intervals."
+    ],
+    "notes": "Proper identification of the specific pest is critical for effective management. Always read and follow pesticide label instructions."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/bottle/gourd_senescence_or_dry.json b/diseases_knowledge_base/bottle/gourd_senescence_or_dry.json
new file mode 100644
index 0000000000000000000000000000000000000000..93c117d93e70d9fb25f8636f103627a46fcaf233
--- /dev/null
+++ b/diseases_knowledge_base/bottle/gourd_senescence_or_dry.json
@@ -0,0 +1,104 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "bottle.physiological_symptom.gourd_senescence_or_dry",
+  "aliases": [
+    "bottle gourd drying",
+    "natural senescence",
+    "end-of-season decline",
+    "vine decline"
+  ],
+  "crop": {
+    "common_name": "bottle gourd",
+    "scientific_name": "Lagenaria siceraria",
+    "family": "Cucurbitaceae"
+  },
+  "condition": {
+    "common_name": "gourd senescence or dry",
+    "scientific_name": null,
+    "alt_names": [
+      "drying",
+      "senescence",
+      "maturation",
+      "dieback"
+    ],
+    "pathogen": {
+      "type": "physiological_disorder",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "physiological_symptom",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "End of growing season",
+      "Drought stress",
+      "Extreme heat",
+      "Soil nutrient depletion",
+      "Maturity of fruit"
+    ],
+    "temp_c_day": [
+      ">35"
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      "<40"
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaves are yellowing or browning, primarily the oldest, lowest leaves on the vine.",
+    "moderate": "11-40% of leaves are yellow or brown; yellowing has progressed up into the middle section of the vine.",
+    "severe": ">40% of leaves are brown, dry, and brittle; stems are also browning and the plant shows significant dieback.",
+    "notes": "Severity measures the percentage of total plant foliage showing symptoms of senescence. This is a natural process but can be accelerated by stress."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uniform yellowing (chlorosis) that begins on the oldest, lowest leaves.",
+      "Yellowing progresses sequentially up the vine to younger leaves.",
+      "Affected leaves become entirely brown, dry, and brittle to the touch.",
+      "Leaf margins may curl upwards or inwards as they desiccate.",
+      "Absence of distinct spots, angular lesions, powdery growth, or pustules."
+    ],
+    "stems": [
+      "Vines lose their green color, turning tan, light brown, or straw-colored.",
+      "Stems become dry, woody, and less flexible, particularly near the plant base."
+    ],
+    "fruit": [
+      "Fruit stops enlarging and begins the curing process on the vine.",
+      "The skin of the gourd hardens and may change color from green to tan or cream.",
+      "The peduncle (fruit stem) becomes dry, hard, and woody."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "General and irreversible decline in plant vigor.",
+      "Progressive wilting of the entire plant that does not recover after watering.",
+      "Overall appearance of drying up and dying back naturally at the end of the season."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [],
+  "management": {
+    "cultural": [
+      "Recognize senescence as a natural part of the plant's life cycle, indicating fruit maturity.",
+      "Allow gourds to cure on the drying vine for a harder shell, unless pest or rot pressure is high.",
+      "If drying occurs prematurely, investigate and correct underlying stresses like lack of water or nutrients.",
+      "Remove and compost or dispose of all plant debris after the final harvest to prevent pathogens from overwintering."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "Management is not about 'treating' senescence but about distinguishing it from treatable problems and managing the end-of-season harvest and cleanup."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/cauliflower/bacterial_spot_rot.json b/diseases_knowledge_base/cauliflower/bacterial_spot_rot.json
new file mode 100644
index 0000000000000000000000000000000000000000..636c7dc347deaab2b04d8389050aee352b850a40
--- /dev/null
+++ b/diseases_knowledge_base/cauliflower/bacterial_spot_rot.json
@@ -0,0 +1,142 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "cauliflower.disease_bacterial.bacterial_spot_rot",
+  "aliases": [
+    "bacterial leaf spot of crucifers",
+    "bacterial spot"
+  ],
+  "crop": {
+    "common_name": "cauliflower",
+    "scientific_name": "Brassica oleracea var. botrytis",
+    "family": "Brassicaceae"
+  },
+  "condition": {
+    "common_name": "bacterial spot rot",
+    "scientific_name": "Pseudomonas syringae pv. maculicola",
+    "alt_names": [
+      "bacterial leaf spot"
+    ],
+    "pathogen": {
+      "type": "disease_bacterial",
+      "taxonomy": {
+        "kingdom": "Bacteria",
+        "phylum": "Pseudomonadota",
+        "class": "Gammaproteobacteria",
+        "order": "Pseudomonadales",
+        "family": "Pseudomonadaceae",
+        "genus": "Pseudomonas",
+        "species": "P. syringae"
+      }
+    }
+  },
+  "issue_type": "disease_bacterial",
+  "transmission": {
+    "vectors": [
+      "insects (e.g., flea beetles)",
+      "humans (via tools and equipment)"
+    ],
+    "dispersal": [
+      "rain splash",
+      "wind-driven rain",
+      "overhead irrigation water",
+      "infected seed"
+    ],
+    "overwintering": [
+      "infected crop debris",
+      "in soil",
+      "on seeds",
+      "on volunteer crucifer plants and weeds"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "cool, wet weather",
+      "prolonged periods of leaf wetness",
+      "high humidity",
+      "overhead irrigation",
+      "dense plant canopies with poor air circulation"
+    ],
+    "temp_c_day": [
+      12,
+      24
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 12
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-5% of leaf surface affected with small, distinct spots. No curd symptoms.",
+    "moderate": "6-25% of leaf surface affected; some spots may be coalescing. Minor spotting on curd.",
+    "severe": ">25% of leaf surface affected, with large necrotic areas or defoliation. Significant curd rot present.",
+    "notes": "Severity is typically assessed on the most affected wrapper leaves. For marketability, any visible rot on the curd (head) may be considered severe."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial symptoms are small (1-3 mm), water-soaked, circular to angular spots.",
+      "Spots rapidly turn dark brown to black.",
+      "A narrow, chlorotic (yellow) halo may surround the dark spots.",
+      "Lesions can coalesce under wet conditions to form large, irregular necrotic patches.",
+      "The center of older spots may dry out and fall away, creating a 'shot-hole' effect.",
+      "Unlike black rot, lesions are not V-shaped and are not limited by major veins."
+    ],
+    "stems": [
+      "Stem infections are less common but can appear as dark, elongated lesions."
+    ],
+    "fruit": [
+      "On the curd (head), symptoms manifest as small, brown to black, sunken spots.",
+      "Spots on the curd can enlarge and merge, leading to a soft, watery rot.",
+      "Secondary pathogens often colonize the rotted curd, producing a foul odor."
+    ],
+    "roots": [
+      "Roots are not affected by this pathogen."
+    ],
+    "whole_plant": [
+      "In severe infections, lower wrapper leaves may yellow and drop prematurely.",
+      "The head may become unmarketable due to discoloration and rot."
+    ],
+    "signs_microscopic_or_visible": [
+      "Under a microscope, bacterial streaming can be observed from the edge of a cut lesion in a drop of water."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "black rot",
+      "condition_id": "cauliflower.disease_bacterial.black_rot",
+      "key_differences": [
+        "Black rot causes distinct V-shaped lesions that start at the leaf margin and point inward.",
+        "Veins within the black rot 'V' turn black, a key diagnostic feature absent in bacterial spot.",
+        "Bacterial spot lesions are circular/angular and scattered, not typically originating at the leaf edge."
+      ]
+    },
+    {
+      "condition_name": "downy mildew",
+      "condition_id": "cauliflower.disease_fungal.downy_mildew",
+      "key_differences": [
+        "Downy mildew produces a visible, fluffy, grayish-white fungal growth on the underside of leaves.",
+        "Upper leaf surface symptoms of downy mildew are often yellow, angular patches bounded by veins, not small black spots.",
+        "Bacterial spot lesions are initially water-soaked and turn black, never showing fuzzy fungal growth."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant certified disease-free seed and transplants.",
+      "Practice crop rotation with non-cruciferous crops for at least 2-3 years.",
+      "Promote good air circulation by using recommended plant spacing.",
+      "Avoid overhead irrigation to minimize leaf wetness; prefer drip irrigation.",
+      "Incorporate or remove crop debris promptly after harvest to reduce pathogen survival."
+    ],
+    "biological": [
+      "Some bio-fungicides containing *Bacillus subtilis* may provide partial suppression when applied preventatively."
+    ],
+    "chemical": [
+      "Preventative applications of copper-based bactericides can reduce infection but are not effective once symptoms are widespread.",
+      "Always consult local extension service recommendations for currently registered and effective products."
+    ],
+    "notes": "Management relies heavily on prevention, as chemical controls are often unsatisfactory once the disease is established in a field."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/cauliflower/black_rot.json b/diseases_knowledge_base/cauliflower/black_rot.json
new file mode 100644
index 0000000000000000000000000000000000000000..2bffb11917bb0ae50105745e8576a4365ed7519a
--- /dev/null
+++ b/diseases_knowledge_base/cauliflower/black_rot.json
@@ -0,0 +1,150 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "cauliflower.disease_fungal.black_rot",
+  "aliases": [
+    "Xanthomonas leaf blight",
+    "bacterial blight"
+  ],
+  "crop": {
+    "common_name": "cauliflower",
+    "scientific_name": "Brassica oleracea var. botrytis",
+    "family": "Brassicaceae"
+  },
+  "condition": {
+    "common_name": "black rot",
+    "scientific_name": "Xanthomonas campestris pv. campestris",
+    "alt_names": [],
+    "pathogen": {
+      "type": "disease_bacterial",
+      "taxonomy": {
+        "kingdom": "Bacteria",
+        "phylum": "Pseudomonadota",
+        "class": "Gammaproteobacteria",
+        "order": "Lysobacterales",
+        "family": "Lysobacteraceae",
+        "genus": "Xanthomonas",
+        "species": "X. campestris"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [
+      "splashing water",
+      "wind-driven rain",
+      "insects (minor)"
+    ],
+    "dispersal": [
+      "infected seed",
+      "infected transplants",
+      "contaminated farm equipment",
+      "water splash from rain or irrigation"
+    ],
+    "overwintering": [
+      "infected crop debris in soil",
+      "infected seed",
+      "cruciferous weeds (e.g., wild mustard)"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high humidity",
+      "warm temperatures",
+      "prolonged leaf wetness",
+      "dense planting",
+      "overhead irrigation"
+    ],
+    "temp_c_day": [
+      25,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      80,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 10
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of total plant foliage is affected. One or two outer leaves show characteristic V-shaped lesions.",
+    "moderate": "11-40% of foliage is affected. Multiple leaves have lesions, some vein blackening is evident beyond the initial lesion, and minor leaf drop may occur.",
+    "severe": ">40% of foliage is affected. Widespread lesions, extensive vein blackening, significant leaf drop, stunting, and/or symptoms on the curd are present.",
+    "notes": "Severity is assessed on the whole plant. Any visible symptoms (black spots, decay) on the cauliflower head (curd) automatically classifies the infection as severe."
+  },
+  "symptoms": {
+    "leaves": [
+      "Yellow, V-shaped lesions appear at the leaf margin, with the point of the 'V' directed towards the leaf base.",
+      "Lesions enlarge and become tan to brown with a dry, papery texture.",
+      "Veins within the V-shaped lesion turn black, a key diagnostic feature.",
+      "This blackening of veins may extend down the petiole.",
+      "Infected leaves may wilt, collapse, and drop prematurely.",
+      "Systemic infection can cause one side of a plant to yellow or wilt."
+    ],
+    "stems": [
+      "A cross-section of an infected stem or petiole reveals a black ring in the vascular tissue."
+    ],
+    "fruit": [
+      "The cauliflower head (curd) can develop black spots or a systemic vascular discoloration.",
+      "Secondary soft rot bacteria often invade, leading to a mushy, foul-smelling decay of the head."
+    ],
+    "roots": [
+      "No primary symptoms, but vascular discoloration from the stem can extend into the main root."
+    ],
+    "whole_plant": [
+      "Stunting and uneven growth can occur, especially in young plants infected systemically.",
+      "Severe infection leads to significant defoliation and unmarketable heads."
+    ],
+    "signs_microscopic_or_visible": [
+      "Under very humid conditions, droplets of bacterial ooze may be visible on the surface of lesions."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "downy mildew",
+      "condition_id": "cauliflower.disease_oomycete.downy_mildew",
+      "key_differences": [
+        "Downy mildew produces a purplish-gray, fuzzy mold on the underside of leaves; black rot does not.",
+        "Downy mildew lesions are angular and yellow, but not typically V-shaped originating from the leaf edge.",
+        "Downy mildew does not cause the characteristic blackening of the veins seen in black rot.",
+        "Downy mildew is favored by cooler, moist conditions, whereas black rot prefers warmer temperatures."
+      ]
+    },
+    {
+      "condition_name": "bacterial spot rot",
+      "condition_id": "cauliflower.disease_bacterial.bacterial_spot_rot",
+      "key_differences": [
+        "Bacterial spot lesions are small, circular, and water-soaked, often with a 'shot-hole' appearance, not large and V-shaped.",
+        "While lesions may darken, bacterial spot does not cause the extensive, systemic blackening of major leaf veins.",
+        "Lesions can appear anywhere on the leaf, not primarily at the margins."
+      ]
+    },
+    {
+      "condition_name": "healthy",
+      "condition_id": "cauliflower.healthy.healthy",
+      "key_differences": [
+        "Healthy leaves are uniformly green to blue-green without any yellow or tan lesions.",
+        "Veins in healthy leaves are green or pale, not black.",
+        "The plant is vigorous with no signs of wilting, stunting, or leaf drop."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified, disease-free seed and transplants.",
+      "Practice a crop rotation of at least 3 years, avoiding all cruciferous crops.",
+      "Control cruciferous weeds in and around the field.",
+      "Promote good air circulation through proper plant spacing.",
+      "Avoid overhead irrigation to minimize leaf wetness and water splashing.",
+      "Incorporate crop residue promptly after harvest to speed up decomposition."
+    ],
+    "biological": [
+      "Some beneficial microbes have shown suppressive activity, but they are not a standalone control method."
+    ],
+    "chemical": [
+      "Preventative applications of copper-based bactericides can help reduce the spread but are not curative.",
+      "Actigard (acibenzolar-S-methyl) can be used to induce the plant's natural defenses before infection occurs."
+    ],
+    "notes": "Management must be preventative. Once infection is established, especially systemically, control is very difficult."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/cauliflower/downy_mildew.json b/diseases_knowledge_base/cauliflower/downy_mildew.json
new file mode 100644
index 0000000000000000000000000000000000000000..f8ce5bfeee794ce848bdb9fb8ee7ee3e48558310
--- /dev/null
+++ b/diseases_knowledge_base/cauliflower/downy_mildew.json
@@ -0,0 +1,146 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "cauliflower.disease_fungal.downy_mildew",
+  "aliases": [
+    "Staghead"
+  ],
+  "crop": {
+    "common_name": "Cauliflower",
+    "scientific_name": "Brassica oleracea var. botrytis",
+    "family": "Brassicaceae"
+  },
+  "condition": {
+    "common_name": "Downy mildew",
+    "scientific_name": "Hyaloperonospora parasitica",
+    "alt_names": [
+      "Peronospora parasitica"
+    ],
+    "pathogen": {
+      "type": "disease_oomycete",
+      "taxonomy": {
+        "kingdom": "Stramenopila",
+        "phylum": "Oomycota",
+        "class": "Oomycetes",
+        "order": "Peronosporales",
+        "family": "Peronosporaceae",
+        "genus": "Hyaloperonospora",
+        "species": "parasitica"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "Wind-dispersed sporangia",
+      "Water splash"
+    ],
+    "overwintering": [
+      "Oospores in soil",
+      "Infected crop debris",
+      "On weedy brassica hosts"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High humidity",
+      "Cool temperatures",
+      "Poor air circulation",
+      "Overhead irrigation",
+      "Crowded plantings"
+    ],
+    "temp_c_day": [
+      10,
+      16
+    ],
+    "temp_c_night": [
+      8,
+      15
+    ],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 4
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area affected with scattered, small lesions.",
+    "moderate": "11-40% of leaf area affected; lesions are numerous and may be coalescing.",
+    "severe": ">40% of leaf area affected; extensive necrosis, defoliation, or systemic curd infection is present.",
+    "notes": "Severity is assessed on the most affected leaves. Presence of any systemic infection in the curd automatically classifies as severe due to marketability loss."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, pale green to yellow, angular spots appear on the upper leaf surface.",
+      "Lesions are often bounded by leaf veins, creating a distinct blocky or angular shape.",
+      "A white to grayish, downy or fuzzy growth (sporangiophores) appears on the underside of leaves, directly below the upper spots.",
+      "Lesions enlarge and turn tan, brown, or necrotic with age.",
+      "Severely infected leaves can become brittle and may drop prematurely."
+    ],
+    "stems": [
+      "Systemic infection can cause purplish discoloration or dark streaks on stems and petioles."
+    ],
+    "fruit": [
+      "Systemic infection causes dark brown to black internal discoloration of the curd.",
+      "Infected curds may show a fuzzy, gray mold-like growth in very humid conditions.",
+      "The surface of the curd can develop sunken, dark spots or blemishes."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Stunting may occur in young plants that are infected systemically early in development."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible white to grayish fuzzy mold (sporangiophores and sporangia) on the abaxial (lower) leaf surface.",
+      "Microscopically, dichotomously branched sporangiophores with lemon-shaped sporangia are present."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Black rot",
+      "condition_id": "cauliflower.disease_bacterial.black_rot",
+      "key_differences": [
+        "Black rot causes large, V-shaped yellow lesions starting at the leaf margin, while downy mildew spots are angular and can appear anywhere on the leaf.",
+        "Black rot lesions feature distinct blackened veins within the yellow 'V', a symptom absent in downy mildew.",
+        "Downy mildew produces a characteristic fuzzy, white growth on the leaf underside; black rot does not produce any visible growth."
+      ]
+    },
+    {
+      "condition_name": "Bacterial spot rot",
+      "condition_id": "cauliflower.disease_bacterial.bacterial_spot_rot",
+      "key_differences": [
+        "Bacterial spots are small, dark, and water-soaked ('greasy'), often purplish-black, whereas early downy mildew spots are pale green or yellow.",
+        "Bacterial spots can appear on both leaf surfaces and lack the white, fuzzy growth that is exclusive to the underside of leaves with downy mildew.",
+        "Bacterial spots may develop a 'shot-hole' appearance as necrotic centers fall out, which is not typical for downy mildew."
+      ]
+    },
+    {
+      "condition_name": "Healthy",
+      "condition_id": "cauliflower.healthy.healthy",
+      "key_differences": [
+        "Healthy leaves have a uniform green or blue-green color without any yellow spots, lesions, or necrosis.",
+        "The underside of a healthy leaf is smooth and lacks any white, fuzzy, or downy growth.",
+        "A healthy cauliflower curd is uniformly white or cream-colored, firm, and free of dark spots or internal discoloration."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant resistant or tolerant cauliflower cultivars.",
+      "Increase plant spacing to promote good air circulation and faster leaf drying.",
+      "Avoid overhead irrigation to minimize leaf wetness; prefer drip or furrow irrigation.",
+      "Implement a crop rotation of at least 2-3 years with non-brassica crops.",
+      "Control weedy brassica species in and around the field.",
+      "Incorporate crop debris after harvest to speed up decomposition of oospores."
+    ],
+    "biological": [
+      "Biofungicides containing strains of *Bacillus subtilis* or *Streptomyces* may provide some suppression when applied preventatively."
+    ],
+    "chemical": [
+      "Apply protectant fungicides (e.g., mancozeb, chlorothalonil) before disease onset in high-risk conditions.",
+      "Use systemic fungicides (e.g., metalaxyl/mefenoxam, fosetyl-al) for curative action, following a resistance management program.",
+      "Ensure thorough spray coverage, especially on the undersides of leaves."
+    ],
+    "notes": "Fungicide applications are most effective when timed preventatively based on weather forecasts favoring disease development (cool, humid nights)."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/cauliflower/healthy.json b/diseases_knowledge_base/cauliflower/healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..5a81284b2c32207b3f1d125af3f6cf612caff2b3
--- /dev/null
+++ b/diseases_knowledge_base/cauliflower/healthy.json
@@ -0,0 +1,120 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "cauliflower.healthy.healthy",
+  "aliases": [
+    "normal",
+    "asymptomatic",
+    "unaffected"
+  ],
+  "crop": {
+    "common_name": "cauliflower",
+    "scientific_name": "Brassica oleracea var. botrytis",
+    "family": "Brassicaceae"
+  },
+  "condition": {
+    "common_name": "Healthy",
+    "scientific_name": null,
+    "alt_names": [
+      "Asymptomatic",
+      "Normal Growth"
+    ],
+    "pathogen": {
+      "type": "none",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "healthy",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [],
+    "temp_c_day": [],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Not applicable",
+    "moderate": "Not applicable",
+    "severe": "Not applicable",
+    "notes": "Severity is not applicable for a healthy plant. The plant is either healthy (asymptomatic) or it is not."
+  },
+  "symptoms": {
+    "leaves": [
+      "Leaves are turgid, fully expanded, and uniformly green to blue-green in color.",
+      "Leaf surfaces are free of spots, lesions, pustules, or powdery residue.",
+      "The natural waxy (glaucous) coating on the leaves is intact and evenly distributed.",
+      "Leaf margins are smooth and intact, without yellowing, browning, or water-soaked areas.",
+      "No signs of yellowing (chlorosis) or browning (necrosis) are present."
+    ],
+    "stems": [
+      "Stems are firm, upright, and uniformly green.",
+      "No cankers, streaks, or soft spots are visible on the main stem."
+    ],
+    "fruit": [
+      "The curd (head) is compact, firm, and uniformly white or cream-colored (or variety-specific color).",
+      "Florets are tightly packed with no separation, browning, or black spots.",
+      "No fuzzy mold growth is visible on or between the florets.",
+      "The curd is free from a 'ricey' texture (elongated floral parts) or bracts growing through it."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Plant exhibits vigorous, upright growth appropriate for its age.",
+      "No stunting, wilting, or dieback is observed."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "black_rot",
+      "condition_id": "cauliflower.bacterial.black_rot",
+      "key_differences": [
+        "Healthy leaves are uniformly green, whereas black rot causes distinct V-shaped yellow lesions starting at the leaf margin.",
+        "Veins in healthy leaves are green; in black rot, veins within the lesion turn black.",
+        "A healthy plant shows no systemic symptoms, while black rot can cause systemic vascular blackening visible in cut stems."
+      ]
+    },
+    {
+      "condition_name": "downy_mildew",
+      "condition_id": "cauliflower.oomycete.downy_mildew",
+      "key_differences": [
+        "The underside of a healthy leaf is smooth and green; downy mildew produces a fluffy, grayish-white mold growth on the leaf underside.",
+        "The upper surface of a healthy leaf is unblemished, whereas downy mildew causes angular, yellow to pale green spots that later turn necrotic.",
+        "Healthy curds are clean; downy mildew can systemically infect the head, causing dark discoloration and rot."
+      ]
+    },
+    {
+      "condition_name": "bacterial_spot_rot",
+      "condition_id": "cauliflower.bacterial.bacterial_spot_rot",
+      "key_differences": [
+        "Healthy curds are uniformly white and firm; bacterial spot rot causes small, water-soaked, brownish-black spots directly on the florets.",
+        "Wrapper leaves on a healthy plant are clean, whereas bacterial spot rot can cause similar dark, greasy spots on leaves and midribs.",
+        "A healthy curd has no off-odors; advanced bacterial rot often leads to a foul-smelling secondary soft rot."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified disease-free seed and transplants.",
+      "Practice a 3-4 year crop rotation with non-brassica crops.",
+      "Ensure proper plant spacing to promote air circulation and rapid leaf drying.",
+      "Manage irrigation to avoid overhead watering and prolonged periods of leaf wetness.",
+      "Maintain good soil drainage and fertility."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "Management for a healthy plant focuses on preventative cultural practices that create optimal growing conditions and minimize disease pressure."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/cherry/healthy.json b/diseases_knowledge_base/cherry/healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..146d0b675c239e84e31b3a4608a2a9164007319f
--- /dev/null
+++ b/diseases_knowledge_base/cherry/healthy.json
@@ -0,0 +1,112 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "cherry.healthy.healthy",
+  "aliases": [
+    "normal cherry",
+    "unaffected cherry",
+    "asymptomatic cherry"
+  ],
+  "crop": {
+    "common_name": "cherry",
+    "scientific_name": "Prunus avium",
+    "family": "Rosaceae"
+  },
+  "condition": {
+    "common_name": "healthy",
+    "scientific_name": "",
+    "alt_names": [
+      "asymptomatic",
+      "normal"
+    ],
+    "pathogen": {
+      "type": "none",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "healthy",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Describes optimal growing conditions, not risk factors for a condition.",
+      "Full sun exposure (6-8 hours/day).",
+      "Well-drained, fertile soil with a pH between 6.0 and 7.0.",
+      "Good air circulation to keep foliage dry.",
+      "Consistent moisture, avoiding both drought and waterlogged conditions."
+    ],
+    "temp_c_day": [],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Plant is completely free of any visible symptoms of disease, stress, or nutrient deficiency.",
+    "moderate": "Not applicable. Any deviation from 'mild' indicates a potential issue, not a moderate level of health.",
+    "severe": "Not applicable.",
+    "notes": "This rubric is used to confirm the absence of symptoms. The only applicable rating is 'mild' for a healthy plant."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uniformly green color, appropriate for the cultivar.",
+      "Smooth, glossy, or matte surface without spots, lesions, or residue.",
+      "Elliptical to ovate shape with characteristic serrated margins.",
+      "No curling, puckering, distortion, or significant chlorosis (yellowing).",
+      "Normal size and density for the age and cultivar of the tree.",
+      "Petioles are firm, green, and turgid."
+    ],
+    "stems": [
+      "Bark is smooth on young wood, becoming rougher with horizontal lenticels on older wood.",
+      "Color is typically reddish-brown to grayish-brown.",
+      "No cankers, gummosis (oozing sap), cracks, or unusual swellings."
+    ],
+    "fruit": [
+      "Skin is smooth, glossy, and uniformly colored when ripe.",
+      "Flesh is firm and free of brown spots, rot, or pits.",
+      "No cracks, lesions, sunken areas, or deformities.",
+      "Stem (pedicel) is green, turgid, and firmly attached."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Vigorous, upright growth habit with a well-developed canopy.",
+      "No signs of wilting, stunting, or branch dieback."
+    ],
+    "signs_microscopic_or_visible": [
+      "Absence of any fungal growth (e.g., mycelia, spores), bacterial ooze, or insect-related signs like frass or webbing."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "powdery mildew",
+      "condition_id": "cherry.fungal.powdery_mildew",
+      "key_differences": [
+        "Healthy leaves have a clean, uniform green surface, whereas powdery mildew appears as distinct white, powdery patches on leaves and shoots.",
+        "Healthy leaves maintain their normal shape, while leaves with severe powdery mildew can become distorted, curled, or puckered.",
+        "Healthy fruit has a smooth, glossy skin, whereas powdery mildew can cause rough, russeted patches on the fruit surface."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant in locations with full sun and good air circulation.",
+      "Prune annually to maintain an open canopy, which promotes rapid drying of foliage.",
+      "Provide consistent and appropriate irrigation, avoiding overhead watering.",
+      "Maintain balanced soil fertility based on regular soil testing.",
+      "Select cultivars known for good vigor and disease resistance in your region."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "Management for a healthy plant focuses on preventative care and maintaining optimal growing conditions to minimize stress and susceptibility to future issues."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/cherry/powdery_mildew.json b/diseases_knowledge_base/cherry/powdery_mildew.json
new file mode 100644
index 0000000000000000000000000000000000000000..af2190d44869b450457c778750165a14609384d7
--- /dev/null
+++ b/diseases_knowledge_base/cherry/powdery_mildew.json
@@ -0,0 +1,120 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "cherry.disease_fungal.powdery_mildew",
+  "aliases": [
+    "cherry powdery mildew",
+    "white mold on cherry"
+  ],
+  "crop": {
+    "common_name": "cherry",
+    "scientific_name": "Prunus spp.",
+    "family": "Rosaceae"
+  },
+  "condition": {
+    "common_name": "powdery mildew",
+    "scientific_name": "Podosphaera clandestina",
+    "alt_names": [
+      "white mold"
+    ],
+    "pathogen": {
+      "type": "fungus",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Leotiomycetes",
+        "order": "Erysiphales",
+        "family": "Erysiphaceae",
+        "genus": "Podosphaera",
+        "species": "clandestina"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "wind-borne conidia"
+    ],
+    "overwintering": [
+      "as chasmothecia (fruiting bodies) on bark, fallen leaves, or in dormant buds"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high humidity (but not free water)",
+      "moderate temperatures",
+      "dense canopy with poor air circulation",
+      "succulent new growth"
+    ],
+    "temp_c_day": [
+      18,
+      25
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      70,
+      95
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf or fruit surface area covered by white mycelium.",
+    "moderate": "11-40% of leaf or fruit surface area covered; some leaf curling or distortion may be present.",
+    "severe": ">40% of leaf or fruit surface area covered; significant leaf distortion, yellowing, defoliation, or fruit cracking/russeting.",
+    "notes": "Severity is assessed by estimating the percentage of the visible surface area of symptomatic leaves or fruit that is covered by the white, powdery fungal growth. Powdery mildew does not require free water (leaf wetness) to infect, hence the threshold is 0."
+  },
+  "symptoms": {
+    "leaves": [
+      "White, powdery, circular patches appear on the upper or lower leaf surface.",
+      "Patches can coalesce to cover the entire leaf surface.",
+      "Infected young leaves may become distorted, twisted, or curled upwards.",
+      "The white fungal growth can be rubbed off, revealing the leaf tissue underneath.",
+      "Older, established infections may cause leaves to yellow and drop prematurely."
+    ],
+    "stems": [
+      "White mycelial growth can develop on young, succulent shoots and suckers."
+    ],
+    "fruit": [
+      "White, circular lesions appear on the fruit surface, often near the stem end.",
+      "Infected areas on developing fruit may stop growing, leading to pitting or deformation.",
+      "On mature fruit, infection causes circular to irregular, leathery, russeted patches.",
+      "Severe fruit infections can lead to cracking."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Reduced vigor and stunted growth, especially in heavily infected young trees."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible white to grayish, powdery mycelium and conidia on plant surfaces."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "healthy",
+      "condition_id": "cherry.healthy.none",
+      "key_differences": [
+        "Healthy leaves are uniformly green without any white, powdery coating.",
+        "Healthy leaves have a smooth, flat surface, whereas infected leaves may be curled or distorted.",
+        "Healthy fruit has a smooth, glossy, unblemished skin, unlike the pitted or russeted surface of infected fruit."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Prune to improve air circulation and light penetration within the canopy.",
+      "Remove and destroy infected shoots and suckers during the growing season.",
+      "Avoid excessive nitrogen fertilization, which promotes susceptible new growth.",
+      "Select more resistant cherry varieties if available."
+    ],
+    "biological": [
+      "Application of bio-fungicides containing *Bacillus subtilis* or potassium bicarbonate.",
+      "Neem oil or horticultural oils can be effective but may cause phytotoxicity in hot weather."
+    ],
+    "chemical": [
+      "Application of protective or systemic fungicides (e.g., sulfur, strobilurins, DMIs) beginning at petal fall or first sign of disease.",
+      "Rotate fungicide classes (FRAC groups) to prevent the development of resistance."
+    ],
+    "notes": "Management is most effective when initiated preventatively based on weather conditions, disease models, and orchard history."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/corn/bacterial_leaf_streak.json b/diseases_knowledge_base/corn/bacterial_leaf_streak.json
new file mode 100644
index 0000000000000000000000000000000000000000..0d603bb378210765056a0da9a570eb39fef690c6
--- /dev/null
+++ b/diseases_knowledge_base/corn/bacterial_leaf_streak.json
@@ -0,0 +1,138 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "corn.disease_bacterial.bacterial_leaf_streak",
+  "aliases": [
+    "Xanthomonas leaf streak",
+    "bacterial streak"
+  ],
+  "crop": {
+    "common_name": "corn",
+    "scientific_name": "Zea mays",
+    "family": "Poaceae"
+  },
+  "condition": {
+    "common_name": "bacterial leaf streak",
+    "scientific_name": "Xanthomonas vasicola pv. vasculorum",
+    "alt_names": [
+      "BLS"
+    ],
+    "pathogen": {
+      "type": "disease_bacterial",
+      "taxonomy": {
+        "kingdom": "Bacteria",
+        "phylum": "Pseudomonadota",
+        "class": "Gammaproteobacteria",
+        "order": "Lysobacterales",
+        "family": "Lysobacteraceae",
+        "genus": "Xanthomonas",
+        "species": "vasicola"
+      }
+    }
+  },
+  "issue_type": "disease_bacterial",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "wind-driven rain",
+      "sprinkler irrigation",
+      "movement of contaminated equipment",
+      "infected crop residue"
+    ],
+    "overwintering": [
+      "infected crop residue",
+      "weedy grass hosts"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high humidity and rainfall",
+      "warm temperatures",
+      "overhead irrigation",
+      "continuous corn or corn-on-corn rotation",
+      "susceptible hybrids",
+      "no-till or minimum tillage systems"
+    ],
+    "temp_c_day": [
+      25,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      80,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 6
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-5% of leaf area affected. Lesions are small, scattered, and primarily on lower leaves.",
+    "moderate": "6-25% of leaf area affected. Lesions are more numerous, beginning to coalesce, and present on middle leaves.",
+    "severe": ">25% of leaf area affected. Extensive lesion coalescence, large necrotic areas, and symptoms present on upper leaves and husks.",
+    "notes": "Severity is typically assessed on the ear leaf and the leaves above it at the R3-R5 (milk to dent) growth stages. The value represents the percentage of leaf surface covered by symptomatic tissue."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial lesions are narrow, water-soaked streaks between leaf veins.",
+      "Streaks elongate to become tan, brown, or bright orange.",
+      "Lesion margins are wavy and irregular, not sharply defined like fungal diseases.",
+      "When held to light, lesions appear translucent or greasy.",
+      "Lesions range from less than an inch to several inches in length.",
+      "Multiple streaks can coalesce to form large, irregular blotches of dead tissue.",
+      "Symptoms typically appear first on lower leaves and progress up the plant.",
+      "Unlike gray leaf spot, lesions are not perfectly rectangular or vein-limited."
+    ],
+    "stems": [],
+    "fruit": [],
+    "roots": [],
+    "whole_plant": [],
+    "signs_microscopic_or_visible": [
+      "In high humidity, tiny droplets of sticky bacterial ooze may be visible on lesion surfaces.",
+      "This ooze dries into small, yellow, crystalline flakes on the leaf."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "gray leaf spot",
+      "condition_id": "corn.disease_fungal.gray_leaf_spot",
+      "key_differences": [
+        "Lesion Shape: Gray leaf spot lesions are distinctly rectangular with straight, parallel sides, strictly limited by leaf veins.",
+        "Lesion Margin: Bacterial leaf streak lesions have wavy, irregular margins.",
+        "Lesion Appearance: Gray leaf spot lesions are opaque and grayish-tan, while bacterial streak lesions can appear greasy or translucent when backlit."
+      ]
+    },
+    {
+      "condition_name": "northern leaf blight",
+      "condition_id": "corn.disease_fungal.northern_leaf_blight",
+      "key_differences": [
+        "Lesion Size & Shape: Northern leaf blight produces very large (up to 6 inches), cigar-shaped, elliptical lesions.",
+        "Lesion Appearance: Bacterial leaf streak lesions are much narrower, streak-like, and lack the distinct concentric zones sometimes seen in NLB.",
+        "Lesion Color: NLB lesions are typically tan or grayish, while BLS can have a more vibrant orange or yellowish hue."
+      ]
+    },
+    {
+      "condition_name": "common rust",
+      "condition_id": "corn.disease_fungal.common_rust",
+      "key_differences": [
+        "Symptom Type: Common rust produces raised, circular-to-oval pustules that rupture the leaf epidermis.",
+        "Texture: Rust pustules are powdery and release cinnamon-brown spores when touched.",
+        "Appearance: Bacterial leaf streak lesions are flat, non-powdery streaks within the leaf tissue."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Select resistant or tolerant corn hybrids.",
+      "Rotate to non-host crops like soybeans or alfalfa.",
+      "Use tillage to bury and encourage decomposition of infected crop residue.",
+      "Manage grassy weeds that can serve as alternative hosts."
+    ],
+    "biological": [
+      "Efficacy of biological control agents is not well-established for this disease."
+    ],
+    "chemical": [
+      "Foliar fungicides are ineffective as this is a bacterial disease.",
+      "Copper-based bactericides may provide some suppression if applied preventatively, but efficacy is often inconsistent and may not be economical."
+    ],
+    "notes": "Preventative management through hybrid selection and cultural practices is the most effective strategy."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/corn/common_rust.json b/diseases_knowledge_base/corn/common_rust.json
new file mode 100644
index 0000000000000000000000000000000000000000..ba2a9c84d7272a086f7075c896f94ce42c8c505f
--- /dev/null
+++ b/diseases_knowledge_base/corn/common_rust.json
@@ -0,0 +1,134 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "corn.disease_fungal.common_rust",
+  "aliases": [
+    "maize common rust",
+    "Puccinia sorghi rust"
+  ],
+  "crop": {
+    "common_name": "Corn",
+    "scientific_name": "Zea mays",
+    "family": "Poaceae"
+  },
+  "condition": {
+    "common_name": "Common Rust",
+    "scientific_name": "Puccinia sorghi",
+    "alt_names": [
+      "Maize Rust"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Basidiomycota",
+        "class": "Pucciniomycetes",
+        "order": "Pucciniales",
+        "family": "Pucciniaceae",
+        "genus": "Puccinia",
+        "species": "sorghi"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "Wind-borne urediniospores"
+    ],
+    "overwintering": [
+      "On alternate hosts (Oxalis spp.)",
+      "In southern regions on corn debris or volunteer corn"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High humidity",
+      "Cool to moderate temperatures",
+      "Frequent dews or light rains",
+      "Susceptible hybrid planted"
+    ],
+    "temp_c_day": [
+      16,
+      25
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      95,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 6
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-5% of leaf area covered in pustules. Pustules are scattered and infrequent.",
+    "moderate": "6-25% of leaf area covered. Pustules are numerous on multiple leaves, some may be coalescing.",
+    "severe": ">25% of leaf area covered. Pustules are dense, covering large portions of leaves, leading to chlorosis, necrosis, and premature leaf death.",
+    "notes": "Severity is often assessed on the ear leaf at the R3 (milk) to R5 (dent) growth stage. Percentage refers to the symptomatic leaf area, not the whole plant."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, circular to oval, cinnamon-brown pustules (uredinia) appear on both upper and lower leaf surfaces.",
+      "Pustules are typically scattered randomly across the leaf, not limited by veins.",
+      "The pustules rupture the epidermis, creating a powdery, rust-colored deposit of spores.",
+      "A faint yellow or chlorotic halo may surround individual pustules.",
+      "As pustules age, they turn darker, becoming brownish-black (telia formation) late in the season.",
+      "In severe infections, leaves may become covered in pustules, leading to yellowing and premature drying."
+    ],
+    "stems": [
+      "Pustules can occasionally appear on the husk and stalk, but are most common on leaves."
+    ],
+    "fruit": [],
+    "roots": [],
+    "whole_plant": [
+      "In highly susceptible hybrids, severe infections can cause reduced vigor and yield loss."
+    ],
+    "signs_microscopic_or_visible": [
+      "Cinnamon-brown, powdery urediniospores visible when pustules rupture.",
+      "Dark brown to black teliospores in older pustules (telia)."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Gray Leaf Spot",
+      "condition_id": "corn.disease_fungal.gray_leaf_spot",
+      "key_differences": [
+        "Gray leaf spot lesions are rectangular and vein-limited, while common rust pustules are oval to circular and scattered.",
+        "Common rust pustules are raised and rupture to release powdery spores; gray leaf spot lesions are flat and tan-to-gray.",
+        "Gray leaf spot lesions are typically gray or tan, not cinnamon-brown like active rust pustules."
+      ]
+    },
+    {
+      "condition_name": "Northern Leaf Blight",
+      "condition_id": "corn.disease_fungal.northern_leaf_blight",
+      "key_differences": [
+        "Northern leaf blight causes large, cigar-shaped, tan lesions, which are much larger than individual rust pustules.",
+        "Common rust features small, raised, powdery pustules, whereas NLB lesions are flat and necrotic.",
+        "NLB lesions do not rupture the epidermis to release powdery spores."
+      ]
+    },
+    {
+      "condition_name": "Bacterial Leaf Streak",
+      "condition_id": "corn.disease_bacterial.bacterial_leaf_streak",
+      "key_differences": [
+        "Bacterial leaf streak lesions are narrow, wavy-edged, and often appear water-soaked or greasy, unlike the dry, powdery rust pustules.",
+        "Bacterial lesions are translucent and yellow to brown, not the distinct cinnamon-brown of common rust.",
+        "Bacterial leaf streak does not produce raised pustules that rupture the epidermis."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Planting resistant or tolerant corn hybrids.",
+      "Managing alternate hosts like Oxalis spp. (wood sorrel).",
+      "Early planting to avoid high spore loads later in the season."
+    ],
+    "biological": [
+      "Some bio-fungicides containing Bacillus species may offer suppression but are generally less effective than chemical options for severe disease pressure."
+    ],
+    "chemical": [
+      "Application of foliar fungicides (e.g., strobilurins, triazoles, SDHIs) based on scouting and economic thresholds.",
+      "Seed treatments may provide limited early-season protection."
+    ],
+    "notes": "Fungicide application is most effective when applied early in the disease cycle, often between the VT (tasseling) and R2 (blister) growth stages, to protect the ear leaf and upper canopy."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/corn/gray_leaf_spot.json b/diseases_knowledge_base/corn/gray_leaf_spot.json
new file mode 100644
index 0000000000000000000000000000000000000000..2c53d448cacd0e5eb6286485ba6e7f8abc2a4d58
--- /dev/null
+++ b/diseases_knowledge_base/corn/gray_leaf_spot.json
@@ -0,0 +1,139 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "corn.disease_fungal.gray_leaf_spot",
+  "aliases": [
+    "GLS",
+    "Cercospora leaf spot of maize"
+  ],
+  "crop": {
+    "common_name": "corn",
+    "scientific_name": "Zea mays",
+    "family": "Poaceae"
+  },
+  "condition": {
+    "common_name": "gray leaf spot",
+    "scientific_name": "Cercospora zeae-maydis",
+    "alt_names": [
+      "GLS"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Capnodiales",
+        "family": "Mycosphaerellaceae",
+        "genus": "Cercospora",
+        "species": "zeae-maydis"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "wind-blown conidia",
+      "rain splash"
+    ],
+    "overwintering": [
+      "infected corn residue (stalks, leaves)",
+      "debris on soil surface"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high relative humidity",
+      "prolonged leaf wetness",
+      "warm temperatures",
+      "continuous corn cropping",
+      "minimum or no-tillage systems",
+      "susceptible hybrids"
+    ],
+    "temp_c_day": [
+      22,
+      30
+    ],
+    "temp_c_night": [
+      20,
+      28
+    ],
+    "relative_humidity_pct": [
+      90,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 12
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-5% of leaf area affected; lesions are few and primarily on lower leaves.",
+    "moderate": "6-25% of leaf area affected; lesions are numerous on lower leaves and are progressing to the ear leaf and middle canopy.",
+    "severe": ">25% of leaf area affected; significant lesion coalescence on lower and middle leaves, with lesions prevalent in the upper canopy, causing premature leaf death.",
+    "notes": "Severity is assessed on the total foliar area of the plant, but often focuses on the ear leaf and above, as these contribute most to yield. Assessment is most critical from tasseling (VT) through dough (R4) stages."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial lesions are small, tan, necrotic spots, sometimes with a faint yellow halo.",
+      "Mature lesions are long (1-6 cm), narrow, and distinctly rectangular.",
+      "Lesions are sharply restricted by leaf veins, giving them parallel sides and a blocky look.",
+      "Mature lesion color is typically tan, light brown, or gray.",
+      "Under humid conditions, lesions may appear grayish or olive-colored due to fungal sporulation.",
+      "Symptoms first appear on the lowest leaves and progress up the plant.",
+      "In severe cases, lesions merge (coalesce) to blight large sections of the leaf.",
+      "Affected leaves may die prematurely, appearing dried and gray-brown."
+    ],
+    "stems": [
+      "Symptoms are not typically found on the stalk."
+    ],
+    "fruit": [
+      "The ears and kernels are not directly infected by this pathogen."
+    ],
+    "roots": [
+      "No direct symptoms on roots."
+    ],
+    "whole_plant": [
+      "Reduced photosynthetic area from leaf blighting can lead to reduced grain fill, lower test weight, and weakened stalks.",
+      "Severe infections can cause premature plant death."
+    ],
+    "signs_microscopic_or_visible": [
+      "With a hand lens, grayish tufts of conidiophores and conidia (fungal spores) may be visible on the lesion surface, especially on humid mornings."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "northern leaf blight",
+      "condition_id": "corn.disease_fungal.northern_leaf_blight",
+      "key_differences": [
+        "Lesion Shape: NLB lesions are large (up to 15 cm), elliptical or 'cigar-shaped', not rectangular like GLS.",
+        "Vein Limitation: NLB lesions are not strictly limited by leaf veins and can cross them.",
+        "Lesion Color: NLB lesions are typically tan or grayish-green, and may have distinct dark zones of sporulation."
+      ]
+    },
+    {
+      "condition_name": "bacterial leaf streak",
+      "condition_id": "corn.disease_bacterial.bacterial_leaf_streak",
+      "key_differences": [
+        "Lesion Margins: Bacterial leaf streak lesions have wavy, irregular margins, while GLS lesions have straight, parallel sides.",
+        "Lesion Appearance: Bacterial lesions often appear water-soaked or greasy, especially when young, and can be translucent when held to light.",
+        "Lesion Color: Bacterial lesions are often bright yellow, orange, or brown, not the typical tan or gray of mature GLS."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Select resistant or tolerant corn hybrids.",
+      "Implement crop rotation with non-host crops like soybeans or wheat.",
+      "Use tillage to bury and encourage decomposition of infected corn residue.",
+      "Avoid irrigation methods that extend periods of leaf wetness."
+    ],
+    "biological": [
+      "Some bio-fungicides containing *Bacillus* species may provide partial suppression but are generally less effective than chemical options for severe disease pressure."
+    ],
+    "chemical": [
+      "Apply foliar fungicides from classes such as Qols (strobilurins), DMIs (triazoles), and SDHIs.",
+      "Scout fields near the tasseling (VT) growth stage to determine if fungicide application is warranted based on disease presence and environmental conditions.",
+      "Ensure thorough coverage, especially in the middle and upper canopy."
+    ],
+    "notes": "Integrated pest management (IPM) combining resistant hybrids, cultural practices, and judicious fungicide use is the most effective and sustainable strategy."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/corn/healthy.json b/diseases_knowledge_base/corn/healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..13f6741390b06f1b4cb5410a013696f2ed4e7a67
--- /dev/null
+++ b/diseases_knowledge_base/corn/healthy.json
@@ -0,0 +1,130 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "corn.healthy.healthy",
+  "aliases": [
+    "normal corn",
+    "asymptomatic corn",
+    "unaffected corn"
+  ],
+  "crop": {
+    "common_name": "corn",
+    "scientific_name": "Zea mays",
+    "family": "Poaceae"
+  },
+  "condition": {
+    "common_name": "healthy",
+    "scientific_name": null,
+    "alt_names": [
+      "asymptomatic"
+    ],
+    "pathogen": {
+      "type": "none",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "healthy",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Optimal growing conditions",
+      "Adequate sunlight and soil moisture",
+      "Balanced soil fertility",
+      "Use of disease-resistant hybrids",
+      "Absence of significant pathogen pressure or environmental stress"
+    ],
+    "temp_c_day": [
+      25,
+      33
+    ],
+    "temp_c_night": [
+      17,
+      23
+    ],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "0% of leaf area affected by symptoms.",
+    "moderate": "Not applicable. Any presence of symptoms indicates a non-healthy state.",
+    "severe": "Not applicable. Any presence of symptoms indicates a non-healthy state.",
+    "notes": "This rubric defines the 'healthy' state as the complete absence of disease or stress symptoms. Any deviation from 0% affected area would classify the plant under a different condition."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uniformly green color, appropriate for the hybrid and growth stage.",
+      "Leaf surfaces are smooth and unblemished, without spots, lesions, streaks, or pustules.",
+      "Leaves are fully expanded and turgid, not showing signs of wilting, curling, or stunting.",
+      "No widespread premature yellowing (chlorosis) or browning (necrosis), except for natural senescence on the lowest leaves of mature plants.",
+      "Midrib is pale green or whitish and structurally sound."
+    ],
+    "stems": [
+      "Stalk is thick, sturdy, upright, and green.",
+      "Internodes are well-formed and free of discoloration, lesions, or physical damage."
+    ],
+    "fruit": [
+      "Ears (if present) are well-formed with green, tight husks.",
+      "Developing kernels are plump and arranged in uniform rows.",
+      "No visible mold, rot, or insect damage on husks or silks."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Exhibits vigorous, upright growth with a stature normal for its developmental stage and variety.",
+      "Normal plant architecture, including tassel and ear placement."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Gray Leaf Spot",
+      "condition_id": "corn.fungal.gray_leaf_spot",
+      "key_differences": [
+        "Healthy leaves are uniformly green, while early GLS appears as tiny, tan, rectangular spots bounded by veins.",
+        "Healthy leaves have a smooth texture; GLS lesions are visually distinct interruptions in the leaf color.",
+        "Natural senescence on healthy plants causes lower leaves to yellow uniformly from the tip down the midrib in a 'V' shape, whereas GLS lesions are distinct, blocky spots that can appear on any leaf."
+      ]
+    },
+    {
+      "condition_name": "Common Rust",
+      "condition_id": "corn.fungal.common_rust",
+      "key_differences": [
+        "Healthy leaves have a smooth epidermis, whereas common rust produces raised, cinnamon-brown, powdery pustules (uredinia) that rupture the leaf surface.",
+        "The pustules of common rust can be physically felt as rough bumps, unlike the smooth surface of a healthy leaf.",
+        "Pustules are scattered on both upper and lower leaf surfaces, which is a clear deviation from the unblemished surface of a healthy plant."
+      ]
+    },
+    {
+      "condition_name": "Bacterial Leaf Streak",
+      "condition_id": "corn.bacterial.bacterial_leaf_streak",
+      "key_differences": [
+        "Healthy leaves show no streaking, while BLS is characterized by long, narrow, wavy-edged, tan or water-soaked streaks between leaf veins.",
+        "BLS streaks often appear oily or translucent when backlit, a feature absent in healthy leaf tissue.",
+        "The streaks in BLS are a distinct discoloration, unlike the uniform green of a healthy leaf."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Planting high-quality, certified seed of resistant hybrids.",
+      "Maintaining balanced soil fertility based on soil testing.",
+      "Ensuring proper plant spacing to allow for good air circulation.",
+      "Managing irrigation to provide adequate water without causing waterlogging or drought stress.",
+      "Implementing crop rotation to break potential disease cycles."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "Management for a 'healthy' state is preventative, focusing on optimal agronomic practices to minimize plant stress and prevent disease establishment."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/corn/maize_lethal_necrosis.json b/diseases_knowledge_base/corn/maize_lethal_necrosis.json
new file mode 100644
index 0000000000000000000000000000000000000000..ddacc4db6e3b05b0e7a5dd8695a23910e815c505
--- /dev/null
+++ b/diseases_knowledge_base/corn/maize_lethal_necrosis.json
@@ -0,0 +1,138 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "corn.unknown.maize_lethal_necrosis",
+  "aliases": [
+    "MLN",
+    "Corn Lethal Necrosis"
+  ],
+  "crop": {
+    "common_name": "Corn",
+    "scientific_name": "Zea mays",
+    "family": "Poaceae"
+  },
+  "condition": {
+    "common_name": "Maize Lethal Necrosis",
+    "scientific_name": "Caused by co-infection of Maize chlorotic mottle virus (MCMV) and a potyvirus (e.g., Sugarcane mosaic virus, SCMV)",
+    "alt_names": [
+      "MLN",
+      "Corn Lethal Necrosis Disease (CLND)"
+    ],
+    "pathogen": {
+      "type": "disease_viral",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [
+      "Corn thrips (Frankliniella williamsi)",
+      "Cereal leaf beetle (Oulema melanopus)",
+      "Rootworms (Diabrotica spp.)",
+      "Aphids (e.g., Rhopalosiphum maidis)"
+    ],
+    "dispersal": [
+      "Infected seed",
+      "Mechanical transmission via tools or equipment",
+      "Vector movement between plants and fields"
+    ],
+    "overwintering": [
+      "Infected crop residues",
+      "Perennial grass hosts",
+      "Infected seed lots"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Continuous maize cropping",
+      "High populations of insect vectors",
+      "Planting of susceptible maize varieties",
+      "Late planting dates"
+    ],
+    "temp_c_day": [
+      24,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Mild chlorotic mottling or mosaic on a few young leaves, with minimal or no stunting.",
+    "moderate": "Extensive mottling and streaking, noticeable stunting, and necrosis beginning at leaf margins. Some plants may show early 'dead heart' symptoms.",
+    "severe": "Severe stunting, extensive leaf necrosis, 'dead heart' symptom leading to plant death, and poorly formed or absent ears.",
+    "notes": "Severity is assessed on a whole-plant basis due to the systemic nature of the disease. 'Dead heart' refers to the necrosis of the central whorl, which kills the plant's growing point. Leaf wetness is not a primary driver for this vector-borne viral disease, hence the threshold is 0."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial fine chlorotic mottle, mosaic, or speckling on young leaves.",
+      "Chlorotic streaks develop parallel to leaf veins.",
+      "Leaf margins turn necrotic (brown and dry), progressing inward and upward from lower leaves.",
+      "In severe cases, entire leaves become desiccated, giving the plant a burnt appearance."
+    ],
+    "stems": [
+      "Significant stunting of the plant is a key symptom.",
+      "Internodes are often shortened."
+    ],
+    "fruit": [
+      "Poor or no ear development.",
+      "Ears that form are typically small, malformed, and have poor kernel fill.",
+      "Husks may be prematurely dry and tight around the ear."
+    ],
+    "roots": [
+      "Root systems are often underdeveloped as a secondary effect of overall plant stunting."
+    ],
+    "whole_plant": [
+      "Necrosis of the growing point in the whorl, causing a 'dead heart' symptom which is often lethal.",
+      "Plants may die prematurely, before reaching maturity.",
+      "Tassels may be malformed, sterile, or produce little pollen."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Maize Streak Virus",
+      "condition_id": "corn.disease_viral.maize_streak_virus",
+      "key_differences": [
+        "MLN causes progressive, widespread necrosis and plant death; MSV causes chlorosis and stunting but is less rapidly lethal.",
+        "MLN features a 'dead heart' symptom (whorl necrosis), which is absent in MSV.",
+        "MSV streaks are very fine and dense ('dots and dashes'), while MLN symptoms begin as a more blotchy mottle before becoming necrotic.",
+        "MLN causes distinct necrosis starting from leaf margins, a symptom not typical of MSV."
+      ]
+    },
+    {
+      "condition_name": "Northern Leaf Blight",
+      "condition_id": "corn.disease_fungal.northern_leaf_blight",
+      "key_differences": [
+        "NLB produces large (2-15 cm), distinct, cigar-shaped tan lesions, whereas MLN symptoms are systemic (mottle, streaks, marginal necrosis).",
+        "MLN symptoms are often most severe on young, upper leaves, while NLB lesions typically start on lower leaves and move up.",
+        "MLN causes whole-plant stunting and death, which are not primary symptoms of NLB."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant certified disease-free seed from reputable sources.",
+      "Use MLN-tolerant or resistant maize hybrids.",
+      "Implement crop rotation with non-cereal crops to break the disease cycle.",
+      "Enforce a 'maize-free' period to eliminate local inoculum and vector hosts.",
+      "Control weed and volunteer grass hosts in and around fields."
+    ],
+    "biological": [
+      "Conserve and promote natural enemies of insect vectors like aphids and thrips."
+    ],
+    "chemical": [
+      "Use seed treatments with systemic insecticides to protect seedlings from early vector feeding.",
+      "Apply foliar insecticides to manage high vector populations, though this is often not economically viable for controlling MLN alone."
+    ],
+    "notes": "An integrated approach combining host resistance, clean seed, cultural practices, and vector management is essential for controlling MLN. There are no virucides to treat infected plants."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/corn/maize_streak_virus.json b/diseases_knowledge_base/corn/maize_streak_virus.json
new file mode 100644
index 0000000000000000000000000000000000000000..bfb9b5a371497096da18f524870442941aaeb036
--- /dev/null
+++ b/diseases_knowledge_base/corn/maize_streak_virus.json
@@ -0,0 +1,131 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "corn.disease_viral.maize_streak_virus",
+  "aliases": [
+    "MSV",
+    "Maize streak disease",
+    "MSD"
+  ],
+  "crop": {
+    "common_name": "Corn",
+    "scientific_name": "Zea mays",
+    "family": "Poaceae"
+  },
+  "condition": {
+    "common_name": "Maize Streak Virus",
+    "scientific_name": "Maize streak virus",
+    "alt_names": [
+      "MSV"
+    ],
+    "pathogen": {
+      "type": "disease_viral",
+      "taxonomy": {
+        "kingdom": "Orthornavirae",
+        "phylum": "Cressdnaviricota",
+        "class": "Repensiviricetes",
+        "order": "Geplanavirales",
+        "family": "Geminiviridae",
+        "genus": "Mastrevirus",
+        "species": "Maize streak virus"
+      }
+    }
+  },
+  "issue_type": "disease_viral",
+  "transmission": {
+    "vectors": [
+      "Leafhoppers (family Cicadellidae), primarily species in the genus Cicadulina (e.g., Cicadulina mbila)"
+    ],
+    "dispersal": [
+      "Movement of infective leafhopper vectors between plants and across fields."
+    ],
+    "overwintering": [
+      "Infected perennial grasses, volunteer maize plants, and within the adult leafhopper vector."
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Presence of leafhopper vector populations.",
+      "Warm, humid conditions that favor vector breeding and movement.",
+      "Planting of susceptible maize varieties.",
+      "Staggered planting dates which allow vectors to move from older infected crops to younger susceptible ones."
+    ],
+    "temp_c_day": [
+      25,
+      35
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      60,
+      90
+    ]
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area shows chlorotic streaks. Stunting is minimal or not apparent.",
+    "moderate": "11-40% of leaf area is covered in streaks. Noticeable stunting and some reduction in ear size is visible.",
+    "severe": ">40% of leaf area is affected; leaves may be almost entirely yellow or white. Severe stunting, poor or no ear formation, and potential plant death.",
+    "notes": "Severity is strongly linked to the plant's growth stage at the time of infection. Early infections (before V6 stage) result in the most severe symptoms and yield loss."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial symptoms appear as small, circular, pale-yellow to white spots on the youngest leaves.",
+      "Spots elongate into narrow, broken, chlorotic streaks that run parallel to the leaf veins.",
+      "Streaks are typically 1-2 mm wide and can be several centimeters long.",
+      "Streaks are sharply defined and do not cross leaf veins.",
+      "In severe cases, streaks can merge, causing the entire leaf to appear yellow or white.",
+      "Symptoms are most prominent on new leaves that emerge after infection; older leaves may remain green.",
+      "Streaks are often more concentrated at the base of the leaf blade."
+    ],
+    "stems": [
+      "Internodes may be shortened, contributing to a stunted plant."
+    ],
+    "fruit": [
+      "Ears (cobs) are often small, deformed, or have poor kernel fill.",
+      "Tassels may be small or emerge late in severely affected plants."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Stunting is a characteristic symptom, with severity depending on the age of the plant at infection.",
+      "Early infection can lead to premature plant death."
+    ],
+    "signs_microscopic_or_visible": [
+      "No visible signs of the pathogen (e.g., fungal growth, bacterial ooze) are present."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Bacterial Leaf Streak",
+      "condition_id": "corn.disease_bacterial.bacterial_leaf_streak",
+      "key_differences": [
+        "Bacterial streaks have wavy, irregular margins, whereas MSV streaks are straight and strictly parallel to veins.",
+        "Bacterial streaks often appear oily or water-soaked, especially when young, unlike the dry, chlorotic streaks of MSV.",
+        "When held to the light, bacterial streaks are translucent, while MSV streaks are opaque yellow/white."
+      ]
+    },
+    {
+      "condition_name": "Maize Lethal Necrosis",
+      "condition_id": "corn.disease_viral.maize_lethal_necrosis",
+      "key_differences": [
+        "MLN causes a general mosaic or mottle, often starting from leaf margins, not the fine, discrete parallel streaks of MSV.",
+        "MLN frequently causes a 'dead heart' symptom where the whorl dies and dries out; this is not typical for MSV.",
+        "MLN progresses rapidly to extensive necrosis (browning/death) of leaf and plant tissue, while MSV is primarily a chlorotic (yellowing) disease."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Planting resistant or tolerant maize varieties is the most effective control measure.",
+      "Early and synchronized planting to help the crop escape peak vector populations.",
+      "Removal and destruction (roguing) of infected plants early in the season to reduce inoculum.",
+      "Control of alternative hosts like wild grasses and volunteer maize plants."
+    ],
+    "biological": [
+      "Conservation of natural predators and parasitoids of leafhoppers."
+    ],
+    "chemical": [
+      "Seed treatment with systemic insecticides to protect young seedlings from vector feeding.",
+      "Foliar insecticide applications to control leafhopper populations, though often not economically feasible for subsistence farmers."
+    ],
+    "notes": "An integrated approach combining host resistance, cultural practices, and targeted chemical control (if necessary) is most effective. Management is focused on the vector, not the virus itself."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/corn/northern_leaf_blight.json b/diseases_knowledge_base/corn/northern_leaf_blight.json
new file mode 100644
index 0000000000000000000000000000000000000000..21aff26b24d2743b28d468752b65a0ae24f41ad1
--- /dev/null
+++ b/diseases_knowledge_base/corn/northern_leaf_blight.json
@@ -0,0 +1,142 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "corn.disease_fungal.northern_leaf_blight",
+  "aliases": [
+    "NLB",
+    "Turcicum leaf blight"
+  ],
+  "crop": {
+    "common_name": "Corn",
+    "scientific_name": "Zea mays",
+    "family": "Poaceae"
+  },
+  "condition": {
+    "common_name": "Northern Leaf Blight",
+    "scientific_name": "Exserohilum turcicum",
+    "alt_names": [
+      "Turcicum leaf blight"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Pleosporales",
+        "family": "Pleosporaceae",
+        "genus": "Exserohilum",
+        "species": "turcicum"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "windborne conidia",
+      "rain splash"
+    ],
+    "overwintering": [
+      "infested corn residue on soil surface",
+      "infected seed (rare)"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high humidity",
+      "prolonged leaf wetness",
+      "moderate temperatures",
+      "susceptible hybrid",
+      "no-till or reduced tillage systems"
+    ],
+    "temp_c_day": [
+      18,
+      27
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      80,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 6
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-5% of leaf area affected; few, scattered lesions, primarily on lower leaves.",
+    "moderate": "6-25% of leaf area affected; numerous lesions on lower and middle leaves, some coalescence.",
+    "severe": ">25% of leaf area affected; extensive lesions on all leaves, significant coalescence, and leaf death.",
+    "notes": "Severity is assessed on the whole plant, considering the percentage of total photosynthetic area destroyed by lesions. Focus on leaves at and above the ear leaf for yield impact assessment."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial lesions are small, water-soaked, and elliptical.",
+      "Mature lesions are large, cigar-shaped or elliptical, and tan-to-gray in color.",
+      "Lesions range from 2.5 to 15 cm (1 to 6 inches) in length.",
+      "Lesions typically have distinct, darker borders.",
+      "Under humid conditions, lesions appear olive-green to black due to fungal sporulation.",
+      "Lesions often start on lower leaves and progress up the plant.",
+      "Multiple lesions can coalesce, blighting large areas of the leaf.",
+      "Lesions run parallel to the leaf veins but are not strictly limited by them."
+    ],
+    "stems": [
+      "Typically unaffected."
+    ],
+    "fruit": [
+      "Husks may develop lesions in severe cases, but kernels are not directly infected."
+    ],
+    "roots": [
+      "Unaffected."
+    ],
+    "whole_plant": [
+      "In severe infections, plants appear blighted or fired, resembling frost or drought damage."
+    ],
+    "signs_microscopic_or_visible": [
+      "Dark, olive-green to black sporulation (conidia and conidiophores) visible within lesions, especially with a hand lens or under humid conditions."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Gray Leaf Spot",
+      "condition_id": "corn.disease_fungal.gray_leaf_spot",
+      "key_differences": [
+        "GLS lesions are narrow, rectangular, and strictly limited by leaf veins, unlike the wider, cigar-shaped NLB lesions.",
+        "GLS lesions are typically gray to tan, while mature NLB lesions are tan with darker borders.",
+        "GLS lesions are generally smaller (up to 5 cm) than mature NLB lesions (up to 15 cm)."
+      ]
+    },
+    {
+      "condition_name": "Bacterial Leaf Streak",
+      "condition_id": "corn.disease_bacterial.bacterial_leaf_streak",
+      "key_differences": [
+        "Bacterial streak lesions are very narrow, have wavy edges, and appear oily or water-soaked, especially when backlit.",
+        "Bacterial streak lesions are often yellow or tan and can produce ooze, unlike the dry, cigar-shaped NLB lesions.",
+        "NLB lesions are much wider and more elliptical than the fine streaks of bacterial leaf streak."
+      ]
+    },
+    {
+      "condition_name": "Maize Lethal Necrosis",
+      "condition_id": "corn.disease_viral.maize_lethal_necrosis",
+      "key_differences": [
+        "MLN causes systemic yellowing and streaking that often starts from the leaf base or whorl, not discrete, scattered lesions like NLB.",
+        "MLN causes severe stunting of the whole plant and often leads to premature plant death ('dead heart'), which is not a primary symptom of NLB.",
+        "MLN symptoms include malformed ears and tassels, which are not caused by NLB."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Planting resistant hybrids",
+      "Crop rotation with non-host crops (e.g., soybeans, alfalfa)",
+      "Tillage to bury infected residue",
+      "Managing irrigation to reduce leaf wetness duration"
+    ],
+    "biological": [
+      "Some bio-fungicides based on Bacillus species may offer suppression."
+    ],
+    "chemical": [
+      "Foliar fungicide application (e.g., strobilurins, triazoles, SDHIs) timed around tasseling (VT) is most effective for yield protection.",
+      "Seed treatments may offer early-season protection in some cases."
+    ],
+    "notes": "Integrated management combining resistant hybrids, cultural practices, and judicious fungicide use is the most effective strategy."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/cotton/alternaria_leaf_spot.json b/diseases_knowledge_base/cotton/alternaria_leaf_spot.json
new file mode 100644
index 0000000000000000000000000000000000000000..3a809062a5d766bce678ab9c56cb8b4b52e612d0
--- /dev/null
+++ b/diseases_knowledge_base/cotton/alternaria_leaf_spot.json
@@ -0,0 +1,147 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "cotton.disease_fungal.alternaria_leaf_spot",
+  "aliases": [
+    "Alternaria leaf blight",
+    "Target spot of cotton"
+  ],
+  "crop": {
+    "common_name": "cotton",
+    "scientific_name": "Gossypium hirsutum",
+    "family": "Malvaceae"
+  },
+  "condition": {
+    "common_name": "alternaria leaf spot",
+    "scientific_name": "Alternaria macrospora, Alternaria alternata",
+    "alt_names": [
+      "Alternaria leaf blight"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Pleosporales",
+        "family": "Pleosporaceae",
+        "genus": "Alternaria",
+        "species": "macrospora, alternata"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "wind",
+      "rain-splash",
+      "infected seed",
+      "contaminated farm equipment"
+    ],
+    "overwintering": [
+      "infected crop debris",
+      "volunteer cotton plants",
+      "weed hosts"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high humidity",
+      "frequent rainfall or overhead irrigation",
+      "prolonged leaf wetness",
+      "potassium deficiency",
+      "plant stress from other diseases or pests",
+      "late-season plant senescence"
+    ],
+    "temp_c_day": [
+      20,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 8
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-5% of leaf area is affected. A few small, scattered lesions, primarily on lower leaves.",
+    "moderate": "6-25% of leaf area is affected. Lesions are numerous, may be coalescing, and some defoliation of lower leaves is evident.",
+    "severe": ">25% of leaf area is affected. Widespread lesion coalescence, significant defoliation extending into the mid and upper canopy, and potential boll lesions.",
+    "notes": "Severity is assessed on the most affected leaves to represent the disease pressure. The disease typically progresses from the bottom of the plant upwards."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial lesions are small (1-2 mm), circular, grey-brown to reddish-brown spots.",
+      "Lesions expand to 0.5-2 cm, developing a classic 'target spot' or 'bull's-eye' appearance with distinct concentric rings.",
+      "A dark purple or brown border often surrounds mature lesions.",
+      "A yellow halo may appear around the lesion, especially on younger leaves.",
+      "Lesion centers can become necrotic and brittle, sometimes falling out to create a 'shot-hole' effect.",
+      "Under severe pressure, multiple lesions coalesce, causing large blighted areas.",
+      "Premature defoliation occurs, starting with the oldest, lowest leaves.",
+      "Infection is often more severe on plants under nutrient stress, particularly potassium deficiency."
+    ],
+    "stems": [
+      "Stem lesions are uncommon but can occur as elongated, dark, slightly sunken areas in severe infections."
+    ],
+    "fruit": [
+      "Lesions on bolls appear as circular, sunken, dark brown to black spots.",
+      "Boll infections can lead to premature opening and lint staining."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Infected plants show reduced vigor and premature senescence.",
+      "Disease is often first observed and most severe in the lower canopy."
+    ],
+    "signs_microscopic_or_visible": [
+      "Under high humidity, a dark, velvety or sooty mold (fungal spores and conidiophores) may be visible in the center of older lesions, often requiring a hand lens."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "bacterial blight",
+      "condition_id": "cotton.disease_bacterial.bacterial_blight",
+      "key_differences": [
+        "Bacterial blight lesions are angular and vein-limited, while Alternaria spots are circular with concentric rings.",
+        "Bacterial blight spots often appear water-soaked initially and turn black, lacking the distinct 'target' pattern.",
+        "Bacterial blight can cause long, black lesions on stems ('blackarm'), a symptom not typical of Alternaria."
+      ]
+    },
+    {
+      "condition_name": "leaf reddening",
+      "condition_id": "cotton.physiological_symptom.leaf_reddening",
+      "key_differences": [
+        "Leaf reddening is a diffuse discoloration (red, purple) across the leaf lamina, not discrete, circular spots with necrotic centers.",
+        "Reddening lacks the concentric rings and defined borders characteristic of Alternaria lesions.",
+        "Alternaria causes distinct spots of dead tissue, whereas reddening is a change in leaf pigment due to stress or senescence."
+      ]
+    },
+    {
+      "condition_name": "herbicide growth damage",
+      "condition_id": "cotton.herbicide_injury.herbicide_growth_damage",
+      "key_differences": [
+        "Herbicide spots (from contact types) are often irregular in shape with bleached white or tan centers and lack organized concentric rings.",
+        "Herbicide damage may follow a distinct spray pattern on the plant or in the field, unlike the more random distribution of a fungal disease.",
+        "Other signs of herbicide injury, such as leaf cupping, strapping, or stunting, may be present on the plant."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant resistant or tolerant cotton varieties.",
+      "Maintain balanced plant nutrition, especially adequate potassium levels.",
+      "Practice crop rotation with non-host crops.",
+      "Manage irrigation to minimize leaf wetness duration.",
+      "Destroy crop residue after harvest to reduce pathogen inoculum."
+    ],
+    "biological": [
+      "Use of registered bio-fungicides containing Bacillus species may offer some suppression."
+    ],
+    "chemical": [
+      "Apply foliar fungicides (e.g., strobilurins, triazoles) preventatively or at first sign of disease, especially during favorable weather conditions.",
+      "Consult local extension recommendations for effective and registered products and timing."
+    ],
+    "notes": "An integrated approach combining cultural practices and chemical control when necessary is most effective."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/cotton/bacterial_blight.json b/diseases_knowledge_base/cotton/bacterial_blight.json
new file mode 100644
index 0000000000000000000000000000000000000000..fcf094627765e0f5371488392f6801c256a03bd3
--- /dev/null
+++ b/diseases_knowledge_base/cotton/bacterial_blight.json
@@ -0,0 +1,146 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "cotton.disease_bacterial.bacterial_blight",
+  "aliases": [
+    "angular leaf spot",
+    "blackarm",
+    "bacterial boll rot",
+    "vein blight"
+  ],
+  "crop": {
+    "common_name": "Cotton",
+    "scientific_name": "Gossypium hirsutum",
+    "family": "Malvaceae"
+  },
+  "condition": {
+    "common_name": "Bacterial Blight",
+    "scientific_name": "Xanthomonas citri pv. malvacearum",
+    "alt_names": [
+      "Angular Leaf Spot",
+      "Blackarm"
+    ],
+    "pathogen": {
+      "type": "disease_bacterial",
+      "taxonomy": {
+        "kingdom": "Bacteria",
+        "phylum": "Pseudomonadota",
+        "class": "Gammaproteobacteria",
+        "order": "Xanthomonadales",
+        "family": "Xanthomonadaceae",
+        "genus": "Xanthomonas",
+        "species": "X. citri"
+      }
+    }
+  },
+  "issue_type": "disease_bacterial",
+  "transmission": {
+    "vectors": [
+      "Wind-driven rain",
+      "Insects (minor)"
+    ],
+    "dispersal": [
+      "Rain splash",
+      "Irrigation water",
+      "Contaminated seed",
+      "Mechanical (tools, human contact)"
+    ],
+    "overwintering": [
+      "Infected crop debris",
+      "On or within seeds",
+      "Volunteer cotton plants"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High humidity",
+      "Frequent rainfall",
+      "Overhead irrigation",
+      "Susceptible cultivars",
+      "High nitrogen fertilization"
+    ],
+    "temp_c_day": [
+      30,
+      36
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 10
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-5% of leaf area affected. A few small, scattered, angular, water-soaked lesions are visible, often on lower leaves.",
+    "moderate": "6-25% of leaf area affected. Lesions are numerous, may be coalescing along veins, and are present on middle and upper canopy. Some stem lesions ('blackarm') may be present.",
+    "severe": ">25% of leaf area affected. Widespread lesion coalescence causing large necrotic areas, significant defoliation, and/or visible boll rot.",
+    "notes": "Severity is primarily assessed by the percentage of symptomatic leaf area. The presence of stem (blackarm) or boll infections automatically elevates the assessment to at least 'moderate'."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, water-soaked spots on the underside of the leaf, initially appearing translucent.",
+      "Lesions become angular (vein-limited) as they expand.",
+      "Spots turn dark brown to black and may look greasy.",
+      "Lesions can coalesce along major veins, causing 'vein blight' and necrosis.",
+      "A faint yellow halo may surround older lesions.",
+      "Infected leaves may become distorted, tattered, and shed prematurely."
+    ],
+    "stems": [
+      "Elongated, sunken, dark brown to black lesions, a phase known as 'blackarm'.",
+      "Stem girdling by lesions can cause wilting and death of the plant part above."
+    ],
+    "fruit": [
+      "Circular, water-soaked spots on bolls (fruit capsules).",
+      "Boll lesions become sunken, turn black, and may feel firm.",
+      "Infection can penetrate the boll, causing internal rot and staining of the lint.",
+      "Young, infected bolls may drop from the plant."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Seedling infection causes water-soaked lesions on cotyledons, potentially leading to 'damping-off'.",
+      "Severe infections lead to stunted growth and reduced plant vigor."
+    ],
+    "signs_microscopic_or_visible": [
+      "Under high humidity, bacterial ooze (slime) may be visible on the surface of fresh lesions."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Alternaria Leaf Spot",
+      "condition_id": "cotton.disease_fungal.alternaria_leaf_spot",
+      "key_differences": [
+        "Alternaria lesions are circular with characteristic concentric 'target-like' rings, not angular and vein-limited.",
+        "Alternaria spots often have a tan or gray center with a dark or purplish border.",
+        "Bacterial blight lesions appear water-soaked or greasy when fresh, while Alternaria spots are typically dry."
+      ]
+    },
+    {
+      "condition_name": "Verticillium Wilt",
+      "condition_id": "cotton.disease_fungal.verticillium_wilt",
+      "key_differences": [
+        "Verticillium causes large areas of interveinal chlorosis and necrosis, often starting at the leaf margin, not distinct, small spots.",
+        "Foliar symptoms from wilt often appear on only one side of a leaf or one side of the plant.",
+        "Bacterial blight does not cause the characteristic brown or black discoloration of the vascular tissue seen when a wilt-infected stem is cut open."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant certified, disease-free seed.",
+      "Use acid-delinted seed to remove surface bacteria.",
+      "Select and plant resistant cotton varieties.",
+      "Promote good air circulation through proper plant spacing.",
+      "Avoid overhead irrigation to minimize leaf wetness.",
+      "Plow under crop debris after harvest to speed decomposition.",
+      "Rotate with non-host crops for at least one year."
+    ],
+    "biological": [
+      "Some products containing *Bacillus* species are marketed for suppression, but efficacy varies."
+    ],
+    "chemical": [
+      "Use of bactericidal seed treatments.",
+      "Preventative foliar sprays with copper-based bactericides can reduce spread but are not curative."
+    ],
+    "notes": "An integrated approach using resistant cultivars and clean seed is the most effective and economical control strategy."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/cotton/fusarium_wilt.json b/diseases_knowledge_base/cotton/fusarium_wilt.json
new file mode 100644
index 0000000000000000000000000000000000000000..e8bbff8226e41739de7edda10bd18e44a904782a
--- /dev/null
+++ b/diseases_knowledge_base/cotton/fusarium_wilt.json
@@ -0,0 +1,142 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "cotton.disease_fungal.fusarium_wilt",
+  "aliases": [
+    "Fusarium wilt of cotton",
+    "Panama disease of cotton"
+  ],
+  "crop": {
+    "common_name": "Cotton",
+    "scientific_name": "Gossypium hirsutum",
+    "family": "Malvaceae"
+  },
+  "condition": {
+    "common_name": "Fusarium Wilt",
+    "scientific_name": "Fusarium wilt",
+    "alt_names": [
+      "Panama disease"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Sordariomycetes",
+        "order": "Hypocreales",
+        "family": "Nectriaceae",
+        "genus": "Fusarium",
+        "species": "oxysporum"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [
+      "Root-knot nematodes (Meloidogyne incognita)"
+    ],
+    "dispersal": [
+      "Infected soil",
+      "Contaminated farm equipment",
+      "Infected seed",
+      "Water (irrigation/runoff)"
+    ],
+    "overwintering": [
+      "Chlamydospores in soil",
+      "Infected crop debris"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High soil temperatures",
+      "Low soil pH (acidic)",
+      "Presence of root-knot nematodes",
+      "Poorly drained soils",
+      "Sandy soils"
+    ],
+    "temp_c_day": [
+      25,
+      32
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": []
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "One or a few lower leaves showing yellowing or wilting. No significant stunting.",
+    "moderate": "Significant portion of the plant (25-75%) shows wilting, chlorosis, and some leaf drop. Plant is visibly stunted.",
+    "severe": "Entire plant is wilted, necrotic, or dead. Severe stunting. Vascular discoloration is prominent if stem is cut.",
+    "notes": "Severity is assessed on a whole-plant basis, considering the percentage of foliage affected by wilting and chlorosis, and the degree of stunting compared to healthy plants."
+  },
+  "symptoms": {
+    "leaves": [
+      "Interveinal chlorosis (yellowing between veins), often starting on lower leaves.",
+      "Leaf margins turn yellow, then brown and necrotic.",
+      "Affected leaves wilt, sometimes on only one side of the plant or one side of a leaf (sectoring).",
+      "Premature defoliation (leaf drop), starting from the bottom of the plant."
+    ],
+    "stems": [
+      "Dark brown to black vascular discoloration (streaking) visible when the stem is cut longitudinally.",
+      "Stunting of the main stem and branches."
+    ],
+    "fruit": [
+      "Bolls may be smaller than normal or fail to open properly."
+    ],
+    "roots": [
+      "Darkening or decay of the root system, though often not the primary external symptom."
+    ],
+    "whole_plant": [
+      "Sudden wilting of the entire plant, especially during the heat of the day, which may recover at night initially.",
+      "Overall stunting and reduced plant vigor.",
+      "Symptoms often appear in patches within a field."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Verticillium Wilt",
+      "condition_id": "cotton.disease_fungal.verticillium_wilt",
+      "key_differences": [
+        "Verticillium wilt symptoms (leaf mottling, chlorotic blotches) often appear higher on the plant first, while Fusarium typically starts on lower leaves.",
+        "Vascular discoloration in Verticillium is often a lighter brown and may appear as flecks, whereas Fusarium is typically a dark brown to black continuous streak.",
+        "Verticillium is favored by cooler temperatures (22-25\u00b0C), while Fusarium is favored by warmer temperatures (>27\u00b0C).",
+        "Leaf symptoms in Verticillium often include large, angular, necrotic areas, which is less typical for Fusarium."
+      ]
+    },
+    {
+      "condition_name": "Herbicide Growth Damage",
+      "condition_id": "cotton.abiotic.herbicide_growth_damage",
+      "key_differences": [
+        "Herbicide damage often shows distinct patterns related to spray application (e.g., rows, field edges), while Fusarium appears in more random patches.",
+        "Herbicide-induced chlorosis may be uniform or have specific patterns (e.g., vein clearing, cupping) not typical of Fusarium's interveinal pattern.",
+        "Herbicide damage will not show the characteristic dark vascular discoloration inside the stem.",
+        "Wilting from herbicide is often accompanied by leaf distortion or strapping, which is absent in Fusarium wilt."
+      ]
+    },
+    {
+      "condition_name": "Leaf Reddening",
+      "condition_id": "cotton.abiotic.leaf_reddening",
+      "key_differences": [
+        "Leaf reddening is a uniform or blotchy red/purple discoloration, not the distinct yellowing (chlorosis) followed by browning seen in Fusarium.",
+        "Reddening is often a late-season physiological response to stress (e.g., nutrient deficiency, cool nights) and doesn't typically cause wilting.",
+        "Fusarium causes wilting and necrosis, while physiological reddening is primarily a color change without significant tissue death or loss of turgor."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Planting resistant varieties (most effective method).",
+      "Crop rotation with non-host crops for several years.",
+      "Managing root-knot nematodes populations.",
+      "Improving soil drainage and avoiding waterlogging.",
+      "Maintaining optimal soil pH and fertility to reduce plant stress."
+    ],
+    "biological": [
+      "Use of commercial biocontrol agents like *Trichoderma* spp. or non-pathogenic *Fusarium* strains."
+    ],
+    "chemical": [
+      "Soil fumigation in high-value or nursery situations (not typically economical for large-scale production).",
+      "Fungicide seed treatments can provide some early-season protection against seedling infection."
+    ],
+    "notes": "An integrated management approach focusing on resistant cultivars and nematode control is the most effective and sustainable strategy."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/cotton/healthy.json b/diseases_knowledge_base/cotton/healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..3e4e8a590099a2e56d555640ceaf4f91877abf6b
--- /dev/null
+++ b/diseases_knowledge_base/cotton/healthy.json
@@ -0,0 +1,134 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "cotton.healthy.healthy",
+  "aliases": [
+    "normal cotton",
+    "unaffected cotton",
+    "healthy growth"
+  ],
+  "crop": {
+    "common_name": "cotton",
+    "scientific_name": "Gossypium hirsutum",
+    "family": "Malvaceae"
+  },
+  "condition": {
+    "common_name": "healthy",
+    "scientific_name": "",
+    "alt_names": [
+      "normal"
+    ],
+    "pathogen": {
+      "type": "physiological",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "healthy",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Optimal growing conditions",
+      "Adequate sunlight (6+ hours direct)",
+      "Balanced soil nutrition (especially Nitrogen, Phosphorus, Potassium)",
+      "Consistent and adequate water supply",
+      "Well-drained soil"
+    ],
+    "temp_c_day": [
+      25,
+      35
+    ],
+    "temp_c_night": [
+      18,
+      24
+    ],
+    "relative_humidity_pct": [
+      50,
+      70
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Not applicable. Plant is healthy.",
+    "moderate": "Not applicable. Plant is healthy.",
+    "severe": "Not applicable. Plant is healthy.",
+    "notes": "Severity is not applicable for a healthy condition. This rubric is a placeholder. Any visible defect would classify the plant as having a different condition."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uniformly green color, without spots, lesions, or discoloration.",
+      "Fully expanded and turgid, showing no signs of wilting or drooping.",
+      "Characteristic palmate shape with 3-5 lobes, free from distortion, cupping, or puckering.",
+      "Smooth leaf surfaces and margins, without pustules, webbing, or frass.",
+      "Veins and interveinal areas are the same shade of green."
+    ],
+    "stems": [
+      "Sturdy, upright, and typically green to reddish-brown.",
+      "Free of cankers, galls, lesions, or unusual swelling."
+    ],
+    "fruit": [
+      "Squares (flower buds) are green, firm, and well-formed without spots or insect damage.",
+      "Flowers open as creamy-white or yellow and senesce to pink/purple normally.",
+      "Bolls (fruit) are green, firm, and uniformly shaped, free from spots, rot, or staining."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Exhibits vigorous, upright growth appropriate for its developmental stage.",
+      "Appears well-hydrated and robust.",
+      "Produces squares, flowers, and bolls in a normal developmental sequence."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "leaf_reddening",
+      "condition_id": "cotton.physiological.leaf_reddening",
+      "key_differences": [
+        "Healthy leaves are uniformly green, while reddened leaves display a distinct reddish-purple discoloration, often starting at the margins.",
+        "In reddening, interveinal areas turn red while veins may remain green; healthy leaves have uniform color across both.",
+        "Reddening is a sign of stress (e.g., nutrient deficiency, cool temperatures), whereas healthy plants show no stress symptoms."
+      ]
+    },
+    {
+      "condition_name": "herbicide_growth_damage",
+      "condition_id": "cotton.abiotic.herbicide_growth_damage",
+      "key_differences": [
+        "Healthy leaves have a normal, well-defined palmate shape; herbicide damage often causes distorted, cupped, or strapped (narrowed) leaves.",
+        "Healthy growth is uniform and upright; herbicide damage can cause twisted stems and abnormal growth, especially at the terminals.",
+        "Healthy leaves are uniformly green; some herbicide damage can cause chlorosis (yellowing) or bleaching, particularly on new growth."
+      ]
+    },
+    {
+      "condition_name": "leaf_variegation",
+      "condition_id": "cotton.genetic.leaf_variegation",
+      "key_differences": [
+        "Healthy leaves have a solid, uniform green color, while variegated leaves show stable, patterned patches of white, yellow, or light green.",
+        "Variegation is typically a genetic trait with a distinct, often symmetrical pattern; a healthy leaf's color is homogenous.",
+        "The boundary between colors is sharp in variegation, unlike the diffuse discoloration from disease or deficiency."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant certified, high-quality seed of an appropriate variety.",
+      "Maintain optimal soil fertility based on soil testing.",
+      "Provide consistent and timely irrigation to avoid water stress.",
+      "Implement effective weed management to reduce competition.",
+      "Monitor for pests and diseases regularly."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "Management for a healthy crop focuses on proactive cultural practices that provide optimal growing conditions and minimize plant stress."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/cotton/herbicide_growth_damage.json b/diseases_knowledge_base/cotton/herbicide_growth_damage.json
new file mode 100644
index 0000000000000000000000000000000000000000..8c9c7f3a8f400f3b69896f0592822c38eb258525
--- /dev/null
+++ b/diseases_knowledge_base/cotton/herbicide_growth_damage.json
@@ -0,0 +1,117 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "cotton.unknown.herbicide_growth_damage",
+  "aliases": [
+    "herbicide injury",
+    "herbicide drift damage",
+    "2,4-D damage",
+    "dicamba damage",
+    "phenoxy herbicide injury"
+  ],
+  "crop": {
+    "common_name": "Cotton",
+    "scientific_name": "Gossypium hirsutum",
+    "family": "Malvaceae"
+  },
+  "condition": {
+    "common_name": "Herbicide Growth Damage",
+    "scientific_name": null,
+    "alt_names": [
+      "Herbicide phytotoxicity",
+      "Phenoxy herbicide injury"
+    ],
+    "pathogen": {
+      "type": "abiotic",
+      "taxonomy": {
+        "kingdom": null,
+        "phylum": null,
+        "class": null,
+        "order": null,
+        "family": null,
+        "genus": null,
+        "species": null
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "Wind drift (spray particles)",
+      "Vapor drift (volatilization)"
+    ],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High wind speeds during application (>10 mph)",
+      "High temperatures causing volatilization",
+      "Low humidity",
+      "Temperature inversions",
+      "Proximity to fields where phenoxy or other susceptible herbicides are applied"
+    ],
+    "temp_c_day": [
+      29
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Slight cupping or strapping on a few new leaves; plant growth is not significantly stunted.",
+    "moderate": "Pronounced cupping, strapping, and distortion on most new growth; some stunting of the plant is visible.",
+    "severe": "Severe distortion, epinasty, and 'strapping' of most leaves; significant stunting or death of the terminal growing point.",
+    "notes": "Severity is assessed based on the degree of malformation of new growth and overall plant stunting, as damage typically affects the growing points active at the time of exposure."
+  },
+  "symptoms": {
+    "leaves": [
+      "Newest leaves are malformed, often cupped downwards or upwards.",
+      "Leaves appear narrow and elongated, a symptom known as 'strapping'.",
+      "Leaf veins appear parallel and closely spaced, resembling 'parallel veining' of a monocot.",
+      "Leaf margins are crinkled, puckered, or have a savoyed (bumpy) texture.",
+      "Petioles are twisted or bent downwards (epinasty)."
+    ],
+    "stems": [
+      "Stems, especially near the terminal, may be twisted, bent, or brittle.",
+      "Callus tissue or swelling may form on the stem."
+    ],
+    "fruit": [
+      "Young squares (flower buds) may be deformed, turn yellow, and be shed from the plant.",
+      "Bolls that form after exposure may be small, misshapen, or fail to develop properly."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Overall plant growth is stunted compared to healthy plants.",
+      "Symptoms are most prominent on the newest growth that was developing at the time of exposure.",
+      "Damage may appear in a pattern across the field (e.g., on the edge) corresponding to drift direction."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Leaf Curl",
+      "condition_id": "cotton.viral.leaf_curl",
+      "key_differences": [
+        "Viral leaf curl often causes upward leaf curling and prominent, thickened, darkened veins on the underside of leaves.",
+        "Herbicide damage causes strapping (narrowing) and parallel-looking veins, which are not typical of leaf curl virus.",
+        "Viral leaf curl may be accompanied by small, leaf-like outgrowths (enations) on the veins, which are absent in herbicide damage.",
+        "The presence of whiteflies, the vector for the virus, may suggest leaf curl as a possibility."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Avoid spraying phenoxy-type herbicides near susceptible cotton fields, especially during windy conditions.",
+      "Use drift-reducing nozzles, lower spray pressure, and appropriate boom height.",
+      "Follow herbicide label instructions regarding wind speed, temperature, and required buffer zones.",
+      "If damage is suspected, document it with photos and collect tissue samples promptly for residue analysis."
+    ],
+    "biological": [],
+    "chemical": [
+      "There is no chemical treatment to reverse herbicide damage.",
+      "Applying supplemental nutrients or biostimulants may help the plant mitigate stress and recover, but will not cure the damage."
+    ],
+    "notes": "Management is entirely preventative. Once damage has occurred, the focus is on mitigating stress to encourage new, unaffected growth, assuming the growing point survives."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/cotton/leaf_curl.json b/diseases_knowledge_base/cotton/leaf_curl.json
new file mode 100644
index 0000000000000000000000000000000000000000..852c80ecd6458ad24ea53e1e88e7b60bd4907d27
--- /dev/null
+++ b/diseases_knowledge_base/cotton/leaf_curl.json
@@ -0,0 +1,125 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "cotton.unknown.leaf_curl",
+  "aliases": [
+    "Cotton Leaf Curl Disease",
+    "CLCuD",
+    "CLCV"
+  ],
+  "crop": {
+    "common_name": "cotton",
+    "scientific_name": "Gossypium hirsutum",
+    "family": "Malvaceae"
+  },
+  "condition": {
+    "common_name": "leaf curl",
+    "scientific_name": "Cotton leaf curl virus complex",
+    "alt_names": [
+      "Cotton Leaf Curl Disease"
+    ],
+    "pathogen": {
+      "type": "unknown",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [
+      "Whitefly (Bemisia tabaci)"
+    ],
+    "dispersal": [
+      "Insect vector movement",
+      "Infected planting material"
+    ],
+    "overwintering": [
+      "On perennial and alternate host plants (weeds)",
+      "In surviving adult whiteflies"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High whitefly populations",
+      "Warm, humid conditions favorable for vector multiplication",
+      "Presence of alternate weed hosts near fields",
+      "Monoculture of susceptible varieties"
+    ],
+    "temp_c_day": [
+      25,
+      38
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      60,
+      90
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Slight upward or downward curling on a few young leaves. Vein thickening may be subtle or absent.",
+    "moderate": "Pronounced curling and cupping on multiple leaves, especially in the upper canopy. Vein thickening is obvious and small leaf-like enations may appear on the underside of veins.",
+    "severe": "Severe stunting of the whole plant. Leaves are small, distorted, and leathery with prominent vein thickening and large enations. Boll formation is significantly reduced or absent.",
+    "notes": "Severity is assessed based on the degree of leaf deformation and whole-plant stunting, as these are the most visually consistent indicators. Leaf wetness is not a primary driver for this vector-borne viral disease."
+  },
+  "symptoms": {
+    "leaves": [
+      "Upward or downward curling of leaf margins.",
+      "Leaf cupping, sometimes forming a distinct cup shape.",
+      "Veins appear thickened and may darken.",
+      "Development of small, leaf-like outgrowths (enations) on the underside of veins.",
+      "Affected leaves feel leathery and brittle.",
+      "Overall leaf size is reduced compared to healthy plants.",
+      "In some cases, veins may appear transparent (vein clearing) in early stages."
+    ],
+    "stems": [
+      "Shortened internodes."
+    ],
+    "fruit": [
+      "Reduced number and size of bolls.",
+      "Bolls may open prematurely or fail to develop."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Stunted growth, resulting in a smaller plant.",
+      "A bushy, compact appearance due to shortened internodes."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "herbicide growth damage",
+      "condition_id": "cotton.abiotic.herbicide_growth_damage",
+      "key_differences": [
+        "Herbicide damage often appears in a distinct field pattern (e.g., edge of field, spray drift lines), while leaf curl distribution is tied to whitefly movement and can be more random.",
+        "Hormone herbicide (e.g., 2,4-D) damage causes leaf strapping and parallel veins, which is distinct from the net-like vein thickening and enations of leaf curl.",
+        "Leaf curl symptoms are systemic and progress on new growth, whereas herbicide injury affects all leaves present at the time of exposure.",
+        "Enations (leaf-like outgrowths on veins) are unique to leaf curl and absent in herbicide damage."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Planting of resistant or tolerant cotton varieties.",
+      "Timely sowing to avoid peak whitefly populations.",
+      "Removal and destruction of infected plants (roguing) early in the season.",
+      "Management of alternate weed hosts in and around the field.",
+      "Use of yellow sticky traps to monitor whitefly populations."
+    ],
+    "biological": [
+      "Conservation and encouragement of natural predators of whiteflies, such as lacewings and lady beetles."
+    ],
+    "chemical": [
+      "Seed treatment with systemic insecticides.",
+      "Foliar application of appropriate insecticides to control whitefly vector populations, following economic thresholds."
+    ],
+    "notes": "Management is primarily focused on controlling the whitefly vector and using resistant cultivars, as there is no direct chemical cure for the viral disease in an infected plant."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/cotton/leaf_hopper_jassids.json b/diseases_knowledge_base/cotton/leaf_hopper_jassids.json
new file mode 100644
index 0000000000000000000000000000000000000000..8f4d492764348bbe91d9263d8690663d6dbf5559
--- /dev/null
+++ b/diseases_knowledge_base/cotton/leaf_hopper_jassids.json
@@ -0,0 +1,137 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "cotton.pest_insect.leaf_hopper_jassids",
+  "aliases": [
+    "Jassids",
+    "Cotton jassids",
+    "Leafhopper burn",
+    "Hopperburn"
+  ],
+  "crop": {
+    "common_name": "cotton",
+    "scientific_name": "Gossypium hirsutum",
+    "family": "Malvaceae"
+  },
+  "condition": {
+    "common_name": "Leaf hopper jassids",
+    "scientific_name": "Amrasca biguttula biguttula",
+    "alt_names": [
+      "Cotton jassid",
+      "Leafhopper"
+    ],
+    "pathogen": {
+      "type": "insect",
+      "taxonomy": {
+        "kingdom": "Animalia",
+        "phylum": "Arthropoda",
+        "class": "Insecta",
+        "order": "Hemiptera",
+        "family": "Cicadellidae",
+        "genus": "Amrasca",
+        "species": "biguttula biguttula"
+      }
+    }
+  },
+  "issue_type": "pest_insect",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "Adult insect flight",
+      "Wind-assisted dispersal of adults"
+    ],
+    "overwintering": [
+      "On alternate host plants (e.g., okra, potato, eggplant)",
+      "In crop debris",
+      "As adults in sheltered locations"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Warm and humid conditions, especially during the rainy season followed by dry spells.",
+      "Lush, succulent plant growth, often from excessive nitrogen fertilizer.",
+      "Presence of alternate weed hosts near the field.",
+      "Absence or reduction of natural predators."
+    ],
+    "temp_c_day": [
+      25,
+      35
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      60,
+      85
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Slight yellowing along leaf margins on a few upper leaves. Nymphs or adults may be visible on the underside of leaves.",
+    "moderate": "Pronounced yellowing and downward curling of leaf margins ('hopperburn') on multiple leaves. Some leaves show reddening or browning at the edges.",
+    "severe": "Widespread 'hopperburn' with leaves turning brick red, becoming brittle, and eventually shedding. Plant growth is visibly stunted.",
+    "notes": "Severity is assessed based on the extent of 'hopperburn' symptoms (yellowing, reddening, curling of leaf margins) and the proportion of foliage affected, which reflects pest population density."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial yellowing appears along the margins and tips of leaves.",
+      "Leaf margins curl downwards and inwards, creating a cupped or inverted boat shape.",
+      "Affected leaf edges progressively turn reddish-brown to brick red, a symptom known as 'hopperburn'.",
+      "In severe cases, the entire leaf becomes brittle, dries up, and sheds prematurely.",
+      "Tiny, pale green, wedge-shaped nymphs are visible on the underside of leaves.",
+      "Nymphs characteristically move sideways (crab-like) when disturbed.",
+      "Honeydew excretions on lower leaves may support the growth of black sooty mold."
+    ],
+    "stems": [
+      "Internodal length may be reduced under heavy infestation."
+    ],
+    "fruit": [
+      "Poor boll development and shedding of young bolls can occur due to reduced plant vigor."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Overall plant growth is stunted, resulting in a withered appearance."
+    ],
+    "signs_microscopic_or_visible": [
+      "Presence of pale green, wedge-shaped nymphs on leaf undersides.",
+      "Presence of mobile, greenish-yellow adult leafhoppers that jump or fly when disturbed.",
+      "White, shed skins (exuviae) of nymphs stuck to the undersides of leaves."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Leaf curl",
+      "condition_id": "cotton.viral_disease.leaf_curl",
+      "key_differences": [
+        "Leafhopper damage causes downward curling of margins; Leaf Curl Virus causes upward or downward curling of the entire leaf, often with thickening and swelling of veins.",
+        "Hopperburn's characteristic marginal yellowing and reddening is not a primary symptom of Leaf Curl Virus.",
+        "Leaf Curl Virus can cause enations (small leaf-like outgrowths) on veins, which are absent with leafhopper damage.",
+        "The insect present for Leaf Curl is the whitefly, not the greenish, wedge-shaped leafhopper jassid."
+      ]
+    },
+    {
+      "condition_name": "Herbicide growth damage",
+      "condition_id": "cotton.abiotic.herbicide_growth_damage",
+      "key_differences": [
+        "Herbicide damage often causes strapping, cupping, or uniform twisting of new growth, whereas leafhopper damage is more randomly distributed based on pest location.",
+        "The distinct 'hopperburn' symptom (marginal yellowing to reddening) is absent in most cases of herbicide injury.",
+        "Leafhopper insects (nymphs/adults) are present with jassid damage but absent with herbicide damage."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Planting early-maturing and tolerant/resistant varieties.",
+      "Avoiding excessive nitrogen fertilization which promotes succulent growth favored by jassids.",
+      "Maintaining field sanitation and removing weed hosts from around the field.",
+      "Timely sowing to avoid peak pest populations."
+    ],
+    "biological": [
+      "Conservation and encouragement of natural predators like lacewings, lady beetles, and spiders."
+    ],
+    "chemical": [
+      "Application of systemic insecticides as seed treatments to protect early growth stages.",
+      "Foliar sprays with recommended insecticides when pest populations cross the economic threshold level (ETL).",
+      "Rotating insecticide classes to prevent the development of resistance."
+    ],
+    "notes": "Monitor fields regularly, especially during early crop stages. Economic Threshold Levels (ETLs) are typically based on the number of nymphs per leaf."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/cotton/leaf_reddening.json b/diseases_knowledge_base/cotton/leaf_reddening.json
new file mode 100644
index 0000000000000000000000000000000000000000..8e04ef616f3e7df6f57f7a3794b8966c92e31beb
--- /dev/null
+++ b/diseases_knowledge_base/cotton/leaf_reddening.json
@@ -0,0 +1,139 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "cotton.physiological_symptom.leaf_reddening",
+  "aliases": [
+    "red leaf disorder",
+    "autumn reddening",
+    "physiological red leaf",
+    "anthocyanosis"
+  ],
+  "crop": {
+    "common_name": "cotton",
+    "scientific_name": "Gossypium hirsutum",
+    "family": "Malvaceae"
+  },
+  "condition": {
+    "common_name": "leaf reddening",
+    "scientific_name": null,
+    "alt_names": [
+      "red leaf",
+      "anthocyanin accumulation"
+    ],
+    "pathogen": {
+      "type": "physiological",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "physiological_symptom",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Nutrient deficiency (especially Nitrogen, Magnesium, Phosphorus)",
+      "Cool temperatures, particularly at night, late in the season",
+      "Drought stress or waterlogged soil",
+      "Soil compaction restricting root growth",
+      "Heavy boll load placing high demand on the plant",
+      "Natural late-season senescence"
+    ],
+    "temp_c_day": [
+      10,
+      20
+    ],
+    "temp_c_night": [
+      5,
+      15
+    ],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "< 25% of the leaf surface shows reddening, often confined to margins or interveinal areas.",
+    "moderate": "25-75% of the leaf surface is red or purplish; veins may still be green.",
+    "severe": "> 75% of the leaf surface is deep red or bronze; leaves may be brittle and senesce.",
+    "notes": "Severity is assessed on individual, fully expanded leaves in the upper to mid canopy. Can also be assessed at the whole-plant level by estimating the percentage of affected leaves."
+  },
+  "symptoms": {
+    "leaves": [
+      "Leaves turn from green to yellow, then to shades of red, purple, or bronze.",
+      "Discoloration often begins at the leaf margins and progresses inward between the main veins.",
+      "Major leaf veins frequently remain green, creating a stark contrast with the red tissue.",
+      "Symptoms typically appear first on older, lower leaves, but can affect the whole plant under severe stress.",
+      "The entire leaf blade may become uniformly deep red in advanced stages.",
+      "Affected leaves can become thick, leathery, and brittle.",
+      "Premature defoliation of red leaves can occur."
+    ],
+    "stems": [
+      "Stems generally remain green and appear healthy."
+    ],
+    "fruit": [
+      "Boll size and development may be reduced if reddening is caused by severe, early-season stress."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Symptoms may appear on scattered individual plants or in patches across a field, corresponding to soil variations or stress patterns.",
+      "Plant growth may be stunted if the underlying stress factor is chronic."
+    ],
+    "signs_microscopic_or_visible": [
+      "Absence of any pathogen signs, such as fungal growth, spores, pycnidia, or bacterial ooze."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "verticillium_wilt",
+      "condition_id": "cotton.fungal.verticillium_wilt",
+      "key_differences": [
+        "Verticillium wilt causes interveinal chlorosis (yellowing) that turns into brown necrosis (dead tissue), not a primary red color.",
+        "Wilt symptoms are often one-sided, affecting half a leaf, a single branch, or one side of the plant.",
+        "Cutting the main stem of a wilted plant will reveal distinct browning or streaking of the vascular tissue.",
+        "Affected leaves typically wilt during the day and may recover at night, which is not characteristic of reddening."
+      ]
+    },
+    {
+      "condition_name": "leaf_hopper_jassids",
+      "condition_id": "cotton.insect.leaf_hopper_jassids",
+      "key_differences": [
+        "Jassid damage ('hopperburn') creates a V-shaped yellowing and browning pattern starting at the leaf tip and margins.",
+        "Leaf margins curl downwards and become brittle and brown, not uniformly red.",
+        "Small, green, wedge-shaped jassid insects or their white cast skins may be visible on the underside of leaves.",
+        "The discoloration is a result of toxin injection during feeding, not a systemic physiological response."
+      ]
+    },
+    {
+      "condition_name": "alternaria_leaf_spot",
+      "condition_id": "cotton.fungal.alternaria_leaf_spot",
+      "key_differences": [
+        "Alternaria presents as discrete, circular lesions, often with a characteristic 'target spot' or concentric ring pattern.",
+        "Lesions are typically tan, grey, or dark brown, sometimes with a purple border, but do not cause the entire leaf to turn red.",
+        "Lesions can fall out, creating a 'shot-hole' appearance.",
+        "This is a fungal disease, so it presents as spots, not a uniform blush of color across the leaf lamina."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Maintain balanced soil fertility through soil testing, paying close attention to nitrogen, magnesium, and phosphorus levels.",
+      "Ensure proper irrigation to avoid both drought stress and waterlogging.",
+      "Alleviate soil compaction to promote healthy root development.",
+      "Select cotton varieties that are well-adapted to the local environment and less prone to premature senescence."
+    ],
+    "biological": [],
+    "chemical": [
+      "Apply foliar sprays of specific nutrients (e.g., magnesium sulfate, potassium nitrate) if a deficiency is confirmed by tissue analysis.",
+      "Use plant growth regulators judiciously to manage plant growth and boll load, reducing plant stress."
+    ],
+    "notes": "Management is preventative and focuses on identifying and correcting the underlying abiotic stressor. Once leaves turn red, the condition is often irreversible for that leaf."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/cotton/leaf_variegation.json b/diseases_knowledge_base/cotton/leaf_variegation.json
new file mode 100644
index 0000000000000000000000000000000000000000..78062deef540c0e3485779712a3207dfd6c8a2e5
--- /dev/null
+++ b/diseases_knowledge_base/cotton/leaf_variegation.json
@@ -0,0 +1,119 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "cotton.physiological_symptom.leaf_variegation",
+  "aliases": [
+    "Genetic variegation",
+    "chimerism",
+    "mosaic pattern variegation"
+  ],
+  "crop": {
+    "common_name": "Cotton",
+    "scientific_name": "Gossypium hirsutum",
+    "family": "Malvaceae"
+  },
+  "condition": {
+    "common_name": "Leaf Variegation",
+    "scientific_name": "",
+    "alt_names": [
+      "Genetic variegation",
+      "Chimerism"
+    ],
+    "pathogen": {
+      "type": "physiological_symptom",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "physiological_symptom",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "Genetic (seed-borne mutation)",
+      "Somatic mutation (chimera)"
+    ],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Genetic predisposition"
+    ],
+    "temp_c_day": [],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "Less than 10% of the leaf surface shows variegation; patterns are small or isolated to a few leaves.",
+    "moderate": "10-40% of the leaf surface shows variegation; patterns are distinct and present on multiple leaves.",
+    "severe": "Over 40% of the leaf surface is variegated, potentially affecting entire leaves or large sectors of the plant.",
+    "notes": "Severity measures the extent of the variegated tissue on a single representative leaf. It is not an indicator of plant health decline, as variegation is often a stable genetic trait."
+  },
+  "symptoms": {
+    "leaves": [
+      "Irregular patches of white, cream, or yellow tissue on an otherwise green leaf blade.",
+      "The boundary between green and non-green areas is typically sharp and well-defined.",
+      "Variegated patterns can be splotchy, sectoral (affecting a large wedge of the leaf), or marginal (along the edges).",
+      "Affected areas lack normal green chlorophyll pigmentation.",
+      "Variegation patterns are often asymmetrical and do not follow vein patterns.",
+      "The leaf shape and texture are generally normal, without distortion, curling, or necrosis.",
+      "Symptoms are stable throughout the season and do not spread from plant to plant."
+    ],
+    "stems": [
+      "Occasionally, stems may also show streaks or sectors of non-pigmented tissue."
+    ],
+    "fruit": [
+      "Bolls (fruit) are typically unaffected and appear normal."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Variegation may affect a single branch, a few leaves, or the entire plant, depending on the nature of the mutation (chimera)."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Herbicide Growth Damage",
+      "condition_id": "cotton.physiological_symptom.herbicide_growth_damage",
+      "key_differences": [
+        "Herbicide damage often causes leaf distortion, cupping, or strapping, which is absent in genetic variegation.",
+        "Chlorosis from herbicide is often mottled or interveinal, not the sharply defined white/cream patches of variegation.",
+        "Herbicide damage patterns often relate to spray drift (e.g., affecting one side of the plant), whereas variegation is typically random or sectoral."
+      ]
+    },
+    {
+      "condition_name": "Bacterial Blight",
+      "condition_id": "cotton.disease_bacterial.bacterial_blight",
+      "key_differences": [
+        "Bacterial blight lesions are initially water-soaked and angular (limited by veins), later turning black and necrotic, unlike the stable, non-necrotic patches of variegation.",
+        "Variegated areas are defined by a lack of pigment, not by tissue death (necrosis).",
+        "Blight lesions often have a greasy appearance and can affect leaf veins, causing 'blackarm' on stems, which is absent in variegation."
+      ]
+    },
+    {
+      "condition_name": "Verticillium Wilt",
+      "condition_id": "cotton.disease_fungal.verticillium_wilt",
+      "key_differences": [
+        "Verticillium wilt causes chlorosis that is typically interveinal, starting at the leaf margins and progressing inward, often affecting one side of the leaf or plant.",
+        "Wilt symptoms (drooping leaves) and vascular discoloration (browning inside the stem) are key signs of Verticillium, absent in variegation.",
+        "The chlorotic tissue in Verticillium wilt often becomes necrotic and brown over time, unlike the stable white/yellow of variegation."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "No management is required as this is a physiological/genetic trait and not a disease.",
+      "If variegation is severe and associated with poor vigor, rogueing affected plants may be considered in breeding programs."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "This condition does not spread and typically has a negligible impact on yield unless a very large portion of the plant's photosynthetic area is affected."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/cotton/verticillium_wilt.json b/diseases_knowledge_base/cotton/verticillium_wilt.json
new file mode 100644
index 0000000000000000000000000000000000000000..e55f748cafea24b5a9788cd9c2dcfc7c7e63af7d
--- /dev/null
+++ b/diseases_knowledge_base/cotton/verticillium_wilt.json
@@ -0,0 +1,143 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "cotton.disease_fungal.verticillium_wilt",
+  "aliases": [
+    "vert wilt",
+    "cotton wilt"
+  ],
+  "crop": {
+    "common_name": "cotton",
+    "scientific_name": "Gossypium hirsutum",
+    "family": "Malvaceae"
+  },
+  "condition": {
+    "common_name": "Verticillium wilt",
+    "scientific_name": "Verticillium dahliae",
+    "alt_names": [],
+    "pathogen": {
+      "type": "fungus",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Sordariomycetes",
+        "order": "Glomerellales",
+        "family": "Plectosphaerellaceae",
+        "genus": "Verticillium",
+        "species": "dahliae"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [
+      "contaminated farm equipment",
+      "irrigation water"
+    ],
+    "dispersal": [
+      "soilborne microsclerotia",
+      "infected plant debris",
+      "windblown soil"
+    ],
+    "overwintering": [
+      "microsclerotia in soil",
+      "infected crop residue"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "cool soil temperatures during early season growth",
+      "excessive nitrogen fertilization",
+      "high soil moisture or poor drainage",
+      "co-infection with nematodes"
+    ],
+    "temp_c_day": [
+      22,
+      28
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Scattered lower leaves show marginal or interveinal chlorosis. No significant stunting or wilting.",
+    "moderate": "Widespread chlorosis and necrosis on lower and mid-canopy leaves. Some defoliation and moderate stunting are visible. Wilting may occur during peak heat.",
+    "severe": "Extensive defoliation, severe stunting, and permanent wilting of the entire plant, often leading to plant death. Bolls are small, fail to open, or are shed.",
+    "notes": "Severity is best assessed at the whole-plant level, focusing on the extent of wilting, defoliation, and stunting. Vascular staining in the stem is a key diagnostic but requires destructive sampling. Leaf wetness is not a primary driver for this soilborne disease."
+  },
+  "symptoms": {
+    "leaves": [
+      "Interveinal chlorosis (yellowing between veins), often starting on lower leaves.",
+      "Chlorotic areas develop into necrotic (brown, dead) tissue, creating a mottled or 'tiger-stripe' pattern.",
+      "Symptoms often appear on only one side of a leaf or one side of the plant (sectoring).",
+      "Affected leaves may wilt and curl upwards at the margins.",
+      "Premature shedding of symptomatic leaves, starting from the bottom of the plant."
+    ],
+    "stems": [
+      "Dark brown to black discoloration of the vascular tissue (xylem) visible when the stem is cut longitudinally or in cross-section.",
+      "Stunting of the main stem and branches, leading to a compressed plant structure."
+    ],
+    "fruit": [
+      "Bolls may be smaller than normal or fail to develop.",
+      "Premature opening of bolls, resulting in low-quality, discolored lint."
+    ],
+    "roots": [
+      "Vascular discoloration from the stem often extends into the taproot."
+    ],
+    "whole_plant": [
+      "General stunting and reduced vigor compared to healthy plants.",
+      "Wilting during the hottest part of the day, which may recover overnight in early stages.",
+      "Asymmetrical growth or dieback on one side of the plant."
+    ],
+    "signs_microscopic_or_visible": [
+      "Microsclerotia (small, black, persistent fungal structures) may form in dead plant tissue but are difficult to see without magnification."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Fusarium wilt",
+      "condition_id": "cotton.disease_fungal.fusarium_wilt",
+      "key_differences": [
+        "Fusarium wilt is favored by warmer temperatures (>29\u00b0C), while Verticillium prefers cooler temperatures (<28\u00b0C).",
+        "Fusarium wilt often causes a more rapid, uniform yellowing and wilting of the entire plant, whereas Verticillium symptoms can be one-sided (sectoring).",
+        "Vascular discoloration in Fusarium is typically a lighter brown, whereas Verticillium causes a very dark brown or black discoloration.",
+        "Fusarium wilt is almost always associated with root-knot nematode damage, which causes galls on roots."
+      ]
+    },
+    {
+      "condition_name": "Bacterial blight",
+      "condition_id": "cotton.disease_bacterial.bacterial_blight",
+      "key_differences": [
+        "Bacterial blight lesions are distinctly angular and water-soaked, confined by leaf veins, unlike the interveinal pattern of Verticillium.",
+        "Bacterial blight does not cause systemic wilting or internal vascular discoloration of the main stem.",
+        "Bacterial blight can also cause black, elongated lesions on stems ('blackarm') and water-soaked spots on bolls."
+      ]
+    },
+    {
+      "condition_name": "Leaf reddening",
+      "condition_id": "cotton.physiological_disorder.leaf_reddening",
+      "key_differences": [
+        "Leaf reddening is characterized by a red or purple pigmentation, not the yellow (chlorosis) and brown (necrosis) of Verticillium.",
+        "Reddening is a physiological response (e.g., to nutrient deficiency, cool nights) and does not involve wilting or vascular discoloration.",
+        "The discoloration in leaf reddening often starts at the leaf margin and progresses inward, affecting the entire leaf."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Planting resistant or tolerant cultivars is the primary management strategy.",
+      "Crop rotation with non-host crops like sorghum or wheat for at least two years.",
+      "Manage irrigation to prevent waterlogging and reduce soil moisture stress.",
+      "Maintain balanced soil fertility, avoiding excessive nitrogen.",
+      "Sanitation by shredding and incorporating crop residue deeply to speed decomposition."
+    ],
+    "biological": [
+      "Application of soil amendments or beneficial microbes (e.g., Trichoderma spp.) may help suppress the pathogen, but results can be inconsistent."
+    ],
+    "chemical": [
+      "Pre-plant soil fumigation in severely infested fields, though often not economically feasible.",
+      "Fungicide seed treatments can provide some early-season suppression but do not offer season-long control."
+    ],
+    "notes": "Effective management requires an integrated approach centered on cultivar resistance and cultural practices. In-season fungicide applications are not effective for controlling this soilborne disease."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/cucumber/anthracnose.json b/diseases_knowledge_base/cucumber/anthracnose.json
new file mode 100644
index 0000000000000000000000000000000000000000..3bdd51bcda45dfa195e7ef319e7f71b534f9765d
--- /dev/null
+++ b/diseases_knowledge_base/cucumber/anthracnose.json
@@ -0,0 +1,147 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "cucumber.disease_fungal.anthracnose",
+  "aliases": [
+    "cucurbit anthracnose"
+  ],
+  "crop": {
+    "common_name": "cucumber",
+    "scientific_name": "Cucumis sativus",
+    "family": "Cucurbitaceae"
+  },
+  "condition": {
+    "common_name": "anthracnose",
+    "scientific_name": "Colletotrichum orbiculare",
+    "alt_names": [
+      "leaf spot",
+      "fruit rot"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Sordariomycetes",
+        "order": "Glomerellales",
+        "family": "Glomerellaceae",
+        "genus": "Colletotrichum",
+        "species": "orbiculare"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "rain splash",
+      "wind-driven rain",
+      "contaminated equipment",
+      "infected seed",
+      "field workers"
+    ],
+    "overwintering": [
+      "infected crop debris",
+      "on volunteer cucurbit plants",
+      "in or on seed"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high humidity",
+      "frequent rainfall",
+      "overhead irrigation",
+      "warm temperatures",
+      "poor air circulation"
+    ],
+    "temp_c_day": [
+      22,
+      28
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      90,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 8
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area affected with small, distinct lesions. No stem or fruit symptoms.",
+    "moderate": "11-40% of leaf area affected; some lesions are coalescing. Minor stem or fruit lesions may be present.",
+    "severe": ">40% of leaf area affected, often with significant defoliation. Stem cankers and/or deep, sunken fruit lesions are present.",
+    "notes": "Severity is primarily assessed by foliar damage, but the presence of any fruit lesions automatically elevates the rating to at least 'moderate' due to marketability loss."
+  },
+  "symptoms": {
+    "leaves": [
+      "Begins as small, water-soaked spots.",
+      "Spots enlarge into circular lesions, 1-2 cm in diameter, that turn brown to black.",
+      "A distinct yellow halo may surround the dark lesions.",
+      "The center of older lesions becomes dry, brittle, and often falls out, creating a 'shot-hole' appearance."
+    ],
+    "stems": [
+      "Develops shallow, elongated, water-soaked cankers.",
+      "Cankers turn tan to black and can girdle the stem, causing wilting above the infection site."
+    ],
+    "fruit": [
+      "Circular, black, sunken cankers appear on the fruit surface.",
+      "Cankers can be up to 2 cm in diameter and penetrate deep into the flesh.",
+      "Lesions may have a raised black rim and a slightly lighter center.",
+      "In humid conditions, the center of fruit lesions exudes pink to orange gelatinous spore masses."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "In severe cases, wilting of vines can occur due to stem girdling.",
+      "Overall plant vigor is reduced, leading to smaller or unmarketable fruit."
+    ],
+    "signs_microscopic_or_visible": [
+      "Pink to orange, gelatinous spore masses (acervuli) are visible in the center of lesions, especially on fruit and stems, during periods of high humidity."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "gummy stem blight",
+      "condition_id": "cucumber.disease_fungal.gummy_stem_blight",
+      "key_differences": [
+        "Gummy stem blight lesions, especially on stems, often exude a characteristic amber-colored gum; anthracnose does not.",
+        "Gummy stem blight leaf lesions are often wedge-shaped starting from the margin, while anthracnose spots are typically circular.",
+        "Gummy stem blight produces tiny black specks (pycnidia) within lesions, whereas anthracnose may show pink/orange spore masses (acervuli)."
+      ]
+    },
+    {
+      "condition_name": "downy mildew",
+      "condition_id": "cucumber.disease_oomycete.downy_mildew",
+      "key_differences": [
+        "Downy mildew spots are angular, bounded by leaf veins, and yellow-green, not circular and black like anthracnose.",
+        "Downy mildew produces a purplish-gray, fuzzy growth on the underside of leaves in humid conditions, not pink/orange masses.",
+        "Anthracnose can cause a 'shot-hole' effect in leaves and also infects fruit, which are not symptoms of downy mildew."
+      ]
+    },
+    {
+      "condition_name": "belly rot",
+      "condition_id": "cucumber.disease_fungal.belly_rot",
+      "key_differences": [
+        "Belly rot primarily affects the part of the fruit in contact with the soil; anthracnose can appear anywhere on the fruit.",
+        "Belly rot lesions are initially tan and water-soaked, becoming brown and crusty, not black and sunken like anthracnose.",
+        "Belly rot does not produce the pink/orange spore masses characteristic of anthracnose."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant certified disease-free seed and resistant varieties.",
+      "Implement a crop rotation of at least 2 years with non-cucurbit crops.",
+      "Ensure proper plant spacing to promote air circulation and rapid leaf drying.",
+      "Use drip irrigation to avoid wetting foliage.",
+      "Remove and destroy infected crop debris promptly after harvest."
+    ],
+    "biological": [
+      "Application of bio-fungicides containing strains of *Bacillus subtilis* or *Trichoderma* may provide some suppression."
+    ],
+    "chemical": [
+      "Apply preventative fungicides, especially during warm, wet weather.",
+      "Effective active ingredients include chlorothalonil, mancozeb, and strobilurin-class fungicides (e.g., azoxystrobin).",
+      "Alternate fungicide modes of action to prevent the development of pathogen resistance."
+    ],
+    "notes": "An integrated pest management (IPM) approach combining cultural practices with judicious fungicide use is most effective."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/cucumber/bacterial_wilt.json b/diseases_knowledge_base/cucumber/bacterial_wilt.json
new file mode 100644
index 0000000000000000000000000000000000000000..f5abda1cd44418ddc41cabef7a84342ca52b77f3
--- /dev/null
+++ b/diseases_knowledge_base/cucumber/bacterial_wilt.json
@@ -0,0 +1,129 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "cucumber.disease_bacterial.bacterial_wilt",
+  "aliases": [
+    "Cucurbit bacterial wilt"
+  ],
+  "crop": {
+    "common_name": "cucumber",
+    "scientific_name": "Cucumis sativus",
+    "family": "Cucurbitaceae"
+  },
+  "condition": {
+    "common_name": "Bacterial Wilt",
+    "scientific_name": "Erwinia tracheiphila",
+    "alt_names": [],
+    "pathogen": {
+      "type": "bacterium",
+      "taxonomy": {
+        "kingdom": "Bacteria",
+        "phylum": "Proteobacteria",
+        "class": "Gammaproteobacteria",
+        "order": "Enterobacterales",
+        "family": "Erwiniaceae",
+        "genus": "Erwinia",
+        "species": "tracheiphila"
+      }
+    }
+  },
+  "issue_type": "disease_bacterial",
+  "transmission": {
+    "vectors": [
+      "striped cucumber beetle (Acalymma vittatum)",
+      "spotted cucumber beetle (Diabrotica undecimpunctata howardi)"
+    ],
+    "dispersal": [
+      "Vector feeding activity"
+    ],
+    "overwintering": [
+      "In the digestive tracts of adult cucumber beetles"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High populations of cucumber beetle vectors",
+      "Warm temperatures favoring beetle activity",
+      "Planting susceptible cultivars"
+    ],
+    "temp_c_day": [
+      24,
+      32
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "One or two runners show wilting during the heat of the day, but may partially recover at night. Plant is still mostly upright.",
+    "moderate": "Multiple runners or a significant portion of the plant (>30%) is permanently wilted and does not recover.",
+    "severe": "The entire plant is collapsed, wilted, and dying or dead.",
+    "notes": "Severity is based on the proportion of the plant showing irreversible wilting. Since the disease is systemic and vectored, leaf wetness is not a primary infection factor; a value of 0 is used as a placeholder."
+  },
+  "symptoms": {
+    "leaves": [
+      "Individual leaves suddenly wilt, appearing limp and dull green.",
+      "Wilting occurs rapidly without significant prior yellowing or spotting.",
+      "Affected leaves eventually turn necrotic and brown but remain attached to the vine.",
+      "Wilting often starts on a single leaf before spreading to the entire runner."
+    ],
+    "stems": [
+      "Entire vines (runners) wilt, often starting from the tip and progressing towards the base.",
+      "Stems appear healthy externally, even when attached leaves are fully wilted.",
+      "A cut stem, when squeezed, may exude a sticky, whitish bacterial slime."
+    ],
+    "fruit": [
+      "Fruit on affected vines may be small, shriveled, or misshapen.",
+      "Infection often kills the plant before significant fruit can develop."
+    ],
+    "roots": [
+      "Roots remain healthy in appearance as the infection is confined to the vascular (xylem) tissue of the stems."
+    ],
+    "whole_plant": [
+      "Sudden and irreversible wilting of one or more runners.",
+      "Rapid collapse of the entire plant, often within a week of first symptoms.",
+      "Wilting occurs even when soil moisture is adequate."
+    ],
+    "signs_microscopic_or_visible": [
+      "A sticky, stringy bacterial ooze can be seen when a freshly cut infected stem is pressed together and slowly pulled apart."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Gummy Stem Blight",
+      "condition_id": "cucumber.disease_fungal.gummy_stem_blight",
+      "key_differences": [
+        "Gummy stem blight causes distinct tan cankers or lesions on the stem, often exuding an amber-colored gummy substance; bacterial wilt does not cause stem cankers.",
+        "The wilting from gummy stem blight is often slower and directly associated with a girdling stem canker, whereas bacterial wilt is a rapid, systemic wilt.",
+        "The bacterial ooze test is positive for bacterial wilt and negative for gummy stem blight.",
+        "Gummy stem blight can also cause large, circular, water-soaked leaf spots, which are absent in bacterial wilt."
+      ]
+    },
+    {
+      "condition_name": "Anthracnose",
+      "condition_id": "cucumber.disease_fungal.anthracnose",
+      "key_differences": [
+        "Anthracnose causes circular, water-soaked leaf spots that turn dark and may develop a 'shot-hole' appearance; bacterial wilt causes wilting of whole leaves without spots.",
+        "Anthracnose produces sunken, dark, circular lesions on fruit, a symptom not caused by bacterial wilt.",
+        "Vine decline from anthracnose is associated with visible stem cankers, unlike the clean wilt from bacterial wilt."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Control cucumber beetle populations from the moment seedlings emerge.",
+      "Use floating row covers to physically exclude beetles, removing them at flowering to allow for pollination.",
+      "Remove and destroy infected plants immediately to reduce the source of bacteria for beetles to spread.",
+      "Plant a trap crop of a highly attractive cucurbit variety on the field perimeter before planting the main crop."
+    ],
+    "biological": [
+      "Encourage natural predators of cucumber beetles."
+    ],
+    "chemical": [
+      "Apply insecticides targeted at cucumber beetles, especially during the seedling and early vine-running stages.",
+      "Perimeter trap-crop spraying can reduce insecticide use on the main crop.",
+      "Consult local extension service recommendations for registered and effective products."
+    ],
+    "notes": "Management is entirely focused on preventing the cucumber beetle vector from feeding and transmitting the bacteria. There is no cure for an infected plant."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/cucumber/belly_rot.json b/diseases_knowledge_base/cucumber/belly_rot.json
new file mode 100644
index 0000000000000000000000000000000000000000..5c5394a186a5371e2339cc50fe15f3ba94c91150
--- /dev/null
+++ b/diseases_knowledge_base/cucumber/belly_rot.json
@@ -0,0 +1,136 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "cucumber.unknown.belly_rot",
+  "aliases": [
+    "Rhizoctonia fruit rot",
+    "soil rot"
+  ],
+  "crop": {
+    "common_name": "cucumber",
+    "scientific_name": "Cucumis sativus",
+    "family": "Cucurbitaceae"
+  },
+  "condition": {
+    "common_name": "belly rot",
+    "scientific_name": "Rhizoctonia solani",
+    "alt_names": [
+      "Rhizoctonia fruit rot",
+      "soil rot"
+    ],
+    "pathogen": {
+      "type": "fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Basidiomycota",
+        "class": "Agaricomycetes",
+        "order": "Cantharellales",
+        "family": "Ceratobasidiaceae",
+        "genus": "Rhizoctonia",
+        "species": "solani"
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "contaminated soil",
+      "water splash",
+      "infected plant debris",
+      "farm equipment"
+    ],
+    "overwintering": [
+      "as sclerotia in soil",
+      "on infected plant debris",
+      "as mycelium in soil"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "fruit contact with soil",
+      "poorly drained soil",
+      "high soil moisture",
+      "warm temperatures (24-32\u00b0C)",
+      "dense canopy",
+      "poor air circulation"
+    ],
+    "temp_c_day": [
+      24,
+      32
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 12
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Small, water-soaked or sunken lesions affect 1-10% of the fruit surface.",
+    "moderate": "Larger, coalescing, tan to brown lesions affect 11-40% of the fruit surface, possibly with some mycelial growth.",
+    "severe": "Large, sunken, necrotic lesions cover >40% of the fruit surface, often with significant secondary rot and visible brown mycelium.",
+    "notes": "Severity is assessed qualitatively based on the percentage of the individual fruit's surface area covered by lesions. This is practical for visual labeling of fruit images."
+  },
+  "symptoms": {
+    "leaves": [],
+    "stems": [
+      "Water-soaked lesions may appear on the stem near the soil line.",
+      "Stem can become constricted or girdled at the base, causing wilting (damping-off in seedlings)."
+    ],
+    "fruit": [
+      "Starts as small, water-soaked, slightly sunken, round spots on the part of the fruit touching the soil.",
+      "Lesions enlarge and become tan to brown, crater-like, and may have concentric rings.",
+      "The center of the lesion may crack or rupture.",
+      "In moist conditions, coarse, brown mycelial threads may be visible on the lesion surface.",
+      "The rot is initially firm and dry but becomes soft and watery due to secondary invaders.",
+      "Affected fruit tissue does not become mushy or watery as in Pythium rot until late stages."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Wilting may occur if the stem base is severely infected."
+    ],
+    "signs_microscopic_or_visible": [
+      "Coarse, brown, web-like mycelium visible on lesions under humid conditions.",
+      "Small, dark, irregularly shaped sclerotia may form on or in rotted tissue."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Pythium fruit rot",
+      "condition_id": "cucumber.disease.pythium_fruit_rot",
+      "key_differences": [
+        "Pythium rot is very soft, watery, and mushy from the start; belly rot is initially firm and dry.",
+        "Pythium rot is covered in abundant white, cottony mycelial growth; belly rot has sparse, coarse, brown mycelium.",
+        "Pythium rot causes the fruit to collapse into a watery mass rapidly.",
+        "Belly rot lesions are more crater-like and tan/brown; Pythium lesions are less defined."
+      ]
+    },
+    {
+      "condition_name": "anthracnose",
+      "condition_id": "cucumber.disease.anthracnose",
+      "key_differences": [
+        "Anthracnose fruit lesions are circular, black, and distinctly sunken.",
+        "In moist weather, the center of anthracnose lesions turns pinkish-orange due to spore masses.",
+        "Anthracnose also causes distinct, water-soaked lesions on leaves, which belly rot does not."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use plastic mulch, straw, or trellising to prevent fruit from touching the soil.",
+      "Improve soil drainage and avoid over-irrigation.",
+      "Promote good air circulation through proper plant spacing.",
+      "Practice a crop rotation of at least 3 years with non-host crops like grains.",
+      "Remove and destroy infected fruit and plant debris promptly."
+    ],
+    "biological": [
+      "Application of bio-fungicides containing *Trichoderma* spp. or *Bacillus subtilis* to the soil may suppress the pathogen."
+    ],
+    "chemical": [
+      "Apply preventative soil-directed fungicides at the base of plants before vining.",
+      "Fungicides containing azoxystrobin, flutolanil, or pentachloronitrobenzene (PCNB) can be effective when applied to the soil."
+    ],
+    "notes": "Integrated management focusing on preventing fruit-soil contact and managing soil moisture is most effective."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/cucumber/downy_mildew.json b/diseases_knowledge_base/cucumber/downy_mildew.json
new file mode 100644
index 0000000000000000000000000000000000000000..e867c747abc5f81234ac3bc518596e8e2db9fa8f
--- /dev/null
+++ b/diseases_knowledge_base/cucumber/downy_mildew.json
@@ -0,0 +1,134 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "cucumber.disease_fungal.downy_mildew",
+  "aliases": [
+    "cucurbit downy mildew",
+    "false mildew"
+  ],
+  "crop": {
+    "common_name": "cucumber",
+    "scientific_name": "Cucumis sativus",
+    "family": "Cucurbitaceae"
+  },
+  "condition": {
+    "common_name": "downy mildew",
+    "scientific_name": "Pseudoperonospora cubensis",
+    "alt_names": [],
+    "pathogen": {
+      "type": "disease_oomycete",
+      "taxonomy": {
+        "kingdom": "Stramenopila",
+        "phylum": "Oomycota",
+        "class": "Oomycetes",
+        "order": "Peronosporales",
+        "family": "Peronosporaceae",
+        "genus": "Pseudoperonospora",
+        "species": "cubensis"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "Windborne sporangia",
+      "Water splash"
+    ],
+    "overwintering": [
+      "On living plant material in frost-free regions",
+      "Does not typically survive in soil or on crop debris in cold climates"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High relative humidity (>85%)",
+      "Prolonged leaf wetness (6+ hours)",
+      "Cool nights and warm, humid days",
+      "Dense plant canopies with poor air circulation"
+    ],
+    "temp_c_day": [
+      15,
+      25
+    ],
+    "temp_c_night": [
+      10,
+      20
+    ],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 6
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area shows distinct, angular, chlorotic lesions. Little to no necrosis.",
+    "moderate": "11-40% of leaf area affected. Lesions are coalescing, turning necrotic (tan/brown), and some upward leaf curling is visible.",
+    "severe": ">40% of leaf area is necrotic. Widespread defoliation is occurring, exposing fruit to sunscald.",
+    "notes": "Assessment should be based on the most affected leaves. The percentage includes both yellow (chlorotic) and brown (necrotic) areas caused by the disease."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial symptoms are pale green to yellow, angular spots on the upper leaf surface.",
+      "Lesions are sharply defined and bounded by leaf veins, creating a blocky or mosaic-like pattern.",
+      "As the disease progresses, lesions enlarge and turn bright yellow, then tan-brown and necrotic.",
+      "Affected leaves may curl upwards at the margins.",
+      "Severely infected leaves die but often remain attached to the vine."
+    ],
+    "stems": [
+      "Stems are typically not directly affected."
+    ],
+    "fruit": [
+      "Fruit may be undersized, misshapen, or have poor flavor due to reduced photosynthesis from defoliation.",
+      "Sunscald can occur on fruit exposed after premature defoliation."
+    ],
+    "roots": [
+      "Roots are not directly affected by the pathogen."
+    ],
+    "whole_plant": [
+      "Infection often starts on older, crown leaves and progresses outwards.",
+      "Severe infections can cause rapid and complete defoliation of the plant."
+    ],
+    "signs_microscopic_or_visible": [
+      "A key diagnostic sign is a purplish to grey, downy or fuzzy growth on the underside (abaxial surface) of the leaves, corresponding to the lesions above.",
+      "This fuzzy growth consists of sporangiophores and sporangia and is most visible in the early morning or during periods of high humidity."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "anthracnose",
+      "condition_id": "cucumber.disease_fungal.anthracnose",
+      "key_differences": [
+        "Anthracnose lesions are circular or sub-circular, not angular and vein-limited like downy mildew.",
+        "Anthracnose lesions often have a dark border and a lighter, sometimes sunken, center which may develop a 'shot-hole' appearance.",
+        "Anthracnose also causes distinct, circular, black, sunken cankers on the fruit, a symptom absent in downy mildew."
+      ]
+    },
+    {
+      "condition_name": "gummy_stem_blight",
+      "condition_id": "cucumber.disease_fungal.gummy_stem_blight",
+      "key_differences": [
+        "Gummy stem blight often causes large, V-shaped lesions extending from the leaf margin, not scattered angular spots.",
+        "A defining symptom of gummy stem blight is the presence of cankers on the stem that exude a characteristic amber-colored gummy substance.",
+        "Downy mildew does not produce symptoms on the stem."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant resistant or tolerant cucumber varieties.",
+      "Maximize air circulation by increasing plant spacing and using trellising.",
+      "Avoid overhead irrigation to minimize leaf wetness duration; use drip irrigation instead.",
+      "Scout plants regularly, especially the undersides of leaves, for early detection."
+    ],
+    "biological": [
+      "Biofungicides based on *Bacillus* species or neem oil may provide some preventative suppression but are generally less effective than chemical options during high disease pressure."
+    ],
+    "chemical": [
+      "Apply preventative fungicides when environmental conditions are favorable for disease development.",
+      "Ensure thorough spray coverage, especially on the undersides of leaves where the pathogen sporulates.",
+      "Rotate fungicides with different modes of action (FRAC groups) to manage the risk of resistance."
+    ],
+    "notes": "Downy mildew is an aggressive pathogen that can overcome host resistance and develop fungicide resistance rapidly. Timely and preventative management is critical."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/cucumber/gummy_stem_blight.json b/diseases_knowledge_base/cucumber/gummy_stem_blight.json
new file mode 100644
index 0000000000000000000000000000000000000000..ec5d04c0bd340b9704bfd1c6c66d2c883cc09e0b
--- /dev/null
+++ b/diseases_knowledge_base/cucumber/gummy_stem_blight.json
@@ -0,0 +1,150 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "cucumber.disease_fungal.gummy_stem_blight",
+  "aliases": [
+    "black rot",
+    "Didymella blight"
+  ],
+  "crop": {
+    "common_name": "cucumber",
+    "scientific_name": "Cucumis sativus",
+    "family": "Cucurbitaceae"
+  },
+  "condition": {
+    "common_name": "gummy stem blight",
+    "scientific_name": "Stagonosporopsis cucurbitacearum",
+    "alt_names": [
+      "Didymella bryoniae"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Pleosporales",
+        "family": "Didymellaceae",
+        "genus": "Stagonosporopsis",
+        "species": "cucurbitacearum"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "water_splash",
+      "wind_driven_rain",
+      "contaminated_tools",
+      "infected_seed"
+    ],
+    "overwintering": [
+      "infected_crop_debris",
+      "soil",
+      "greenhouse_structures"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high_humidity",
+      "prolonged_leaf_wetness",
+      "cool_to_moderate_temperatures",
+      "plant_wounds_from_pruning_or_harvesting"
+    ],
+    "temp_c_day": [
+      20,
+      25
+    ],
+    "temp_c_night": [
+      16,
+      20
+    ],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 4
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "One or two small, water-soaked stem cankers or leaf lesions; no significant wilting or vine dieback.",
+    "moderate": "Multiple stem cankers, some exuding gummy substance; significant foliar blighting (<30% of canopy); some fruit rot observed.",
+    "severe": "Extensive stem girdling leading to vine collapse or wilting above the canker; >30% of canopy blighted; widespread fruit rot.",
+    "notes": "Severity is assessed based on the most advanced symptom present, with stem girdling and vine collapse being the most critical indicators for high severity."
+  },
+  "symptoms": {
+    "leaves": [
+      "Circular, water-soaked spots, often starting at the leaf margin.",
+      "Lesions enlarge, turn tan to dark brown, and may develop a 'shot-hole' appearance as the center dries and falls out.",
+      "A yellow halo may surround older leaf lesions."
+    ],
+    "stems": [
+      "Water-soaked, greasy-looking cankers, frequently at nodes or wound sites.",
+      "Cankers become pale brown to gray, dry out, and may girdle the stem.",
+      "Amber or reddish-brown gummy ooze exudes from stem cankers, especially in high humidity.",
+      "Stem cankers may contain tiny black specks (pycnidia or perithecia)."
+    ],
+    "fruit": [
+      "Circular, water-soaked spots that enlarge and become sunken, developing into a black rot.",
+      "Fruit rot often begins at the blossom or stem end.",
+      "Tiny black specks (pycnidia) are often visible scattered across the rotted fruit surface.",
+      "Infected fruit may also exude a gummy substance."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Wilting or collapse of the entire vine above a girdling stem canker.",
+      "Damping-off of seedlings, characterized by water-soaking and constriction at the soil line."
+    ],
+    "signs_microscopic_or_visible": [
+      "Presence of small, black, flask-shaped fruiting bodies (pycnidia and/or perithecia) embedded in lesion tissue on stems, leaves, or fruit.",
+      "Viscous, gummy, amber-colored ooze from stem or fruit lesions."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "anthracnose",
+      "condition_id": "cucumber.disease_fungal.anthracnose",
+      "key_differences": [
+        "Anthracnose leaf spots are darker, almost black, and more sharply defined than the tan-brown lesions of GSB.",
+        "Anthracnose fruit lesions are distinct, black, sunken craters, often with a pinkish spore mass in the center under moist conditions, unlike the more general black rot of GSB.",
+        "Prominent gummy ooze from stem cankers is a hallmark of GSB and is less common or absent in anthracnose."
+      ]
+    },
+    {
+      "condition_name": "bacterial wilt",
+      "condition_id": "cucumber.disease_bacterial.bacterial_wilt",
+      "key_differences": [
+        "Bacterial wilt causes rapid, irreversible wilting of the entire plant without the initial leaf spots or stem cankers seen in GSB.",
+        "A key sign of bacterial wilt is stringy bacterial slime when a cut stem is pulled apart or placed in water; this is absent in GSB.",
+        "GSB causes wilting only *above* a visible, girdling stem canker, whereas bacterial wilt affects the entire plant's vascular system."
+      ]
+    },
+    {
+      "condition_name": "belly rot",
+      "condition_id": "cucumber.disease_fungal.belly_rot",
+      "key_differences": [
+        "Belly rot lesions occur primarily where the fruit contacts moist soil, while GSB fruit rot can start anywhere, often at the blossom end.",
+        "Belly rot lesions are tan, sunken, and may appear cracked or 'scabby', not the black, pycnidia-dotted rot of GSB.",
+        "Belly rot does not affect stems or leaves, whereas GSB is a whole-plant disease."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified disease-free seed and resistant cultivars where available.",
+      "Practice crop rotation with non-cucurbits for at least two years.",
+      "Improve air circulation via wider spacing and pruning to promote drying.",
+      "Avoid overhead irrigation to minimize leaf wetness duration.",
+      "Promptly remove and destroy infected plant material and post-harvest debris."
+    ],
+    "biological": [
+      "Application of bio-fungicides containing strains of *Bacillus subtilis* or *Trichoderma* may suppress the pathogen."
+    ],
+    "chemical": [
+      "Apply preventative fungicides, especially before rainy or humid periods.",
+      "Rotate fungicides with different FRAC codes to manage resistance.",
+      "Ensure thorough coverage, especially on stems and developing fruit."
+    ],
+    "notes": "An integrated pest management (IPM) strategy combining cultural, biological, and chemical controls is most effective for managing gummy stem blight."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/cucumber/healthy.json b/diseases_knowledge_base/cucumber/healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..25486d239fee32cfe63a9a3d6437f1d0deae554b
--- /dev/null
+++ b/diseases_knowledge_base/cucumber/healthy.json
@@ -0,0 +1,129 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "cucumber.healthy.healthy",
+  "aliases": [
+    "normal",
+    "unaffected",
+    "symptom-free"
+  ],
+  "crop": {
+    "common_name": "Cucumber",
+    "scientific_name": "Cucumis sativus",
+    "family": "Cucurbitaceae"
+  },
+  "condition": {
+    "common_name": "Healthy",
+    "scientific_name": null,
+    "alt_names": [],
+    "pathogen": {
+      "type": "none",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "healthy",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Optimal growing conditions are maintained, including proper light, water, and nutrition."
+    ],
+    "temp_c_day": [
+      24,
+      29
+    ],
+    "temp_c_night": [
+      18,
+      21
+    ],
+    "relative_humidity_pct": [
+      60,
+      70
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "No visible symptoms of disease or significant stress. May have minor, non-pathogenic physical blemishes on <1% of plant surface.",
+    "moderate": "Not applicable. The presence of moderate symptoms would indicate a non-healthy condition.",
+    "severe": "Not applicable. The presence of severe symptoms would indicate a non-healthy condition.",
+    "notes": "This rubric assesses the absence of disease. 'Mild' allows for trivial mechanical damage or cosmetic imperfections that do not impact plant health. Any rating beyond 'mild' signifies a deviation from the 'healthy' state."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uniformly green color, consistent with the cultivar.",
+      "Leaves are fully expanded, turgid, and appropriately sized.",
+      "Surfaces are free of spots, lesions, yellowing (chlorosis), or necrosis.",
+      "No powdery, downy, or sooty mold growth is visible on either leaf surface.",
+      "Leaf margins are intact and show no signs of browning or curling."
+    ],
+    "stems": [
+      "Stems and vines are firm, turgid, and typically light to medium green.",
+      "No cankers, lesions, discoloration, or gummy ooze is present.",
+      "Vines exhibit active, vigorous growth at the terminals."
+    ],
+    "fruit": [
+      "Fruit is firm to the touch with a consistent shape and size typical for the cultivar.",
+      "Skin color is uniform and unblemished, typically green but varies by cultivar.",
+      "No soft spots, water-soaked areas, sunken lesions, or mold growth.",
+      "Blossom end is firm and dry."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Exhibits a vigorous, upright or vining growth habit.",
+      "Plant does not show signs of wilting, especially during cooler parts of the day.",
+      "Overall appearance is robust with normal flower and fruit production."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "downy_mildew",
+      "condition_id": "cucumber.fungal.downy_mildew",
+      "key_differences": [
+        "Healthy leaves have a uniform green color, whereas downy mildew causes angular, yellow to brownish lesions on the upper leaf surface.",
+        "The underside of a healthy leaf is clean, while downy mildew-infected leaves often show a purplish-grey, fuzzy mold on the underside, especially in humid conditions.",
+        "Healthy leaves remain turgid and flat, whereas leaves with advanced downy mildew become necrotic and may curl."
+      ]
+    },
+    {
+      "condition_name": "bacterial_wilt",
+      "condition_id": "cucumber.bacterial.bacterial_wilt",
+      "key_differences": [
+        "A healthy plant is turgid and upright, while bacterial wilt causes rapid, irreversible wilting of entire vines, often starting with a single leaf, without any yellowing.",
+        "The stem of a healthy plant is firm and shows no internal discoloration. A stem infected with bacterial wilt, when cut, will exude a sticky, stringy bacterial ooze when the cut ends are pulled apart.",
+        "Wilting from bacterial wilt is permanent, whereas a healthy plant might show temporary wilting on a very hot day but recovers overnight."
+      ]
+    },
+    {
+      "condition_name": "anthracnose",
+      "condition_id": "cucumber.fungal.anthracnose",
+      "key_differences": [
+        "Healthy fruit has smooth, unblemished skin. Anthracnose on fruit appears as circular, sunken, water-soaked spots that turn black and may develop a pinkish center.",
+        "Healthy leaves are whole and uniformly colored. Anthracnose causes round, water-soaked spots on leaves that enlarge, turn dark brown or black, and may drop out, creating a 'shot-hole' effect."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Provide consistent and adequate watering, avoiding overhead irrigation to keep foliage dry.",
+      "Ensure proper plant spacing to promote good air circulation.",
+      "Maintain a balanced soil fertility program based on soil testing.",
+      "Practice crop rotation with non-cucurbit crops.",
+      "Select cultivars that are well-suited to the local growing conditions."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "Management for a healthy plant focuses on preventative care and maintaining optimal growing conditions to prevent the onset of diseases and disorders."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/cucumber/pythium_fruit_rot.json b/diseases_knowledge_base/cucumber/pythium_fruit_rot.json
new file mode 100644
index 0000000000000000000000000000000000000000..d9261e1a9b7c547f25a6d38cd1b9870946165d9f
--- /dev/null
+++ b/diseases_knowledge_base/cucumber/pythium_fruit_rot.json
@@ -0,0 +1,132 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "cucumber.unknown.pythium_fruit_rot",
+  "aliases": [
+    "Pythium cottony leak",
+    "Watery soft rot",
+    "Pythium leak"
+  ],
+  "crop": {
+    "common_name": "cucumber",
+    "scientific_name": "Cucumis sativus",
+    "family": "Cucurbitaceae"
+  },
+  "condition": {
+    "common_name": "Pythium fruit rot",
+    "scientific_name": "Pythium spp.",
+    "alt_names": [
+      "Cottony leak"
+    ],
+    "pathogen": {
+      "type": "oomycete",
+      "taxonomy": {
+        "kingdom": "Stramenopila",
+        "phylum": "Oomycota",
+        "class": "Oomycetes",
+        "order": "Pythiales",
+        "family": "Pythiaceae",
+        "genus": "Pythium",
+        "species": "spp."
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [
+      "Fungus gnats",
+      "Shore flies"
+    ],
+    "dispersal": [
+      "Contaminated soil",
+      "Splashing water (rain, irrigation)",
+      "Infected tools",
+      "Movement of infected plant material"
+    ],
+    "overwintering": [
+      "Oospores in soil",
+      "Infected crop residue"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Saturated or poorly drained soil",
+      "High relative humidity (>85%)",
+      "Fruit in direct contact with wet soil",
+      "Warm soil and air temperatures",
+      "Over-irrigation"
+    ],
+    "temp_c_day": [
+      25,
+      35
+    ],
+    "temp_c_night": [
+      20,
+      30
+    ],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 12
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Small, distinct, water-soaked spot (<10% of fruit surface), no visible mycelium.",
+    "moderate": "Expanding lesion (10-40% of fruit surface), fruit is soft, possibly with some visible white, cottony mycelium.",
+    "severe": "Large portion of fruit is collapsed (>40%), abundant cottony mycelium is present, and the fruit is watery and disintegrating.",
+    "notes": "Severity is based on the percentage of the individual fruit's surface area affected by rot and the presence/abundance of visible mycelial growth. While named 'leaf_wetness', for this soil-borne disease, this value represents hours of continuous soil saturation required for infection."
+  },
+  "symptoms": {
+    "leaves": [],
+    "stems": [
+      "Water-soaked lesions at the soil line on young plants (damping-off)."
+    ],
+    "fruit": [
+      "Small, circular, water-soaked spots appear where the fruit touches the soil.",
+      "Lesions expand rapidly, becoming very soft and watery.",
+      "Affected area becomes covered in a brilliant white, cottony or fluffy mold (mycelium).",
+      "The fruit skin may rupture, releasing a clear, often odorless liquid.",
+      "The entire fruit collapses into a soft, watery mass within 2-4 days.",
+      "Infected fruit feels very light when picked up due to water loss."
+    ],
+    "roots": [
+      "Roots may appear brown, soft, and water-soaked.",
+      "The outer cortex of roots may slough off easily, leaving the inner core."
+    ],
+    "whole_plant": [
+      "Sudden wilting of the plant, especially if root rot is also present."
+    ],
+    "signs_microscopic_or_visible": [
+      "Profuse, white, cottony mycelial growth on the surface of fruit lesions."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Belly Rot",
+      "condition_id": "cucumber.unknown.belly_rot",
+      "key_differences": [
+        "Belly rot lesions are tan-to-brown and sunken, not initially clear and water-soaked like Pythium.",
+        "Belly rot does not produce the profuse, white, cottony mycelium characteristic of Pythium.",
+        "Belly rot lesions are firm and may have a target-like or zonate pattern.",
+        "Pythium rot is much softer and more watery than belly rot."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Improve soil drainage and avoid overwatering.",
+      "Use raised beds to keep fruit from sitting in water.",
+      "Apply a physical barrier like plastic mulch or straw between the soil and fruit.",
+      "Promote good air circulation around plants.",
+      "Rotate crops with non-susceptible plants (e.g., non-cucurbits)."
+    ],
+    "biological": [
+      "Application of soil-borne beneficial microbes such as Trichoderma spp. or specific strains of Bacillus spp."
+    ],
+    "chemical": [
+      "Preventative application of fungicides specifically targeting oomycetes (e.g., mefenoxam, propamocarb, etridiazole) as a soil drench.",
+      "Ensure fungicides are applied to the soil surface and crown of the plant before disease onset."
+    ],
+    "notes": "Cultural controls that prevent fruit-to-soil contact and reduce soil moisture are the most effective management strategies. Chemical controls are typically only used preventatively in high-risk fields."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/eggplant/healthy.json b/diseases_knowledge_base/eggplant/healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..fffe54d136a2b626813ecde16c1539e527f568da
--- /dev/null
+++ b/diseases_knowledge_base/eggplant/healthy.json
@@ -0,0 +1,140 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "eggplant.healthy.healthy",
+  "aliases": [
+    "normal",
+    "asymptomatic",
+    "no disease"
+  ],
+  "crop": {
+    "common_name": "eggplant",
+    "scientific_name": "Solanum melongena",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "Healthy",
+    "scientific_name": "",
+    "alt_names": [
+      "Asymptomatic"
+    ],
+    "pathogen": {
+      "type": "none",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "healthy",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Optimal growing temperatures and humidity",
+      "Adequate sunlight (6-8 hours direct sun)",
+      "Well-drained, fertile soil",
+      "Good air circulation around plants"
+    ],
+    "temp_c_day": [
+      21,
+      29
+    ],
+    "temp_c_night": [
+      18,
+      24
+    ],
+    "relative_humidity_pct": [
+      60,
+      85
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Not applicable.",
+    "moderate": "Not applicable.",
+    "severe": "Not applicable.",
+    "notes": "Severity is not applicable for a healthy plant. The plant is either healthy or it is not. Any deviation from the healthy description indicates a different condition."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uniformly green color, appropriate for the cultivar, without mottling or yellowing.",
+      "Leaves are fully expanded, turgid, and show no signs of wilting, curling, or distortion.",
+      "Leaf surfaces are smooth and free of spots, lesions, holes, or powdery/fuzzy growth.",
+      "No stippling, bronzing, or webbing is visible on either the upper or lower leaf surface."
+    ],
+    "stems": [
+      "Stems are sturdy, upright, and have a consistent green or purplish color.",
+      "No cankers, lesions, dark streaks, or soft/rotted areas are present.",
+      "The base of the stem is firm and free from decay."
+    ],
+    "fruit": [
+      "Skin is smooth, glossy, and has a uniform, rich color characteristic of the variety.",
+      "Fruit is firm to the touch, not soft, shriveled, or water-soaked.",
+      "The calyx (green cap) is fresh, green, and healthy-looking, not brown or moldy.",
+      "Fruit surface is free from spots, sunken lesions, cracks, or rot."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Exhibits vigorous, upright growth.",
+      "Actively producing new leaves, flowers, and fruit appropriate for its age and season."
+    ],
+    "signs_microscopic_or_visible": [
+      "Absence of any visible pathogen signs such as mycelium, fruiting bodies, spores, or bacterial ooze."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "pest_damage",
+      "condition_id": "eggplant.pest_damage.unknown",
+      "key_differences": [
+        "Healthy leaves are whole and intact, whereas pest damage often appears as holes, chewed margins, or skeletonization.",
+        "Healthy leaf surfaces are clean, while pest damage may include stippling (tiny dots from mites), leafminer trails, or visible insects/larvae.",
+        "Healthy plants lack sticky honeydew or sooty mold, which can be present with aphid or whitefly infestations."
+      ]
+    },
+    {
+      "condition_name": "leaf_spot",
+      "condition_id": "eggplant.fungal_disorder.leaf_spot",
+      "key_differences": [
+        "Healthy leaves have a uniform green color, while leaf spot diseases cause distinct, often circular or angular, necrotic (brown/black) or chlorotic (yellow) spots.",
+        "Spots on diseased leaves may have a defined border or a yellow halo, both of which are absent on healthy leaves.",
+        "Under moist conditions, fungal leaf spots may develop visible signs like tiny black dots (pycnidia) within the lesion, which are never present on healthy tissue."
+      ]
+    },
+    {
+      "condition_name": "wilt_generic_review",
+      "condition_id": "eggplant.wilt.wilt_generic_review",
+      "key_differences": [
+        "Healthy leaves are turgid and held upright, while a wilted plant shows drooping or flagging of leaves, which may or may not recover overnight.",
+        "The entire healthy plant appears vigorous, whereas wilt often affects one side of the plant or the whole plant, leading to stunting and death.",
+        "Healthy stems are firm; stems of plants with vascular wilt often show brown discoloration in the vascular tissue when cut open."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant certified disease-free seeds or transplants.",
+      "Ensure proper spacing between plants to promote good air circulation.",
+      "Use drip irrigation or soaker hoses to keep foliage dry.",
+      "Practice a 3-4 year crop rotation with non-solanaceous crops.",
+      "Maintain balanced soil fertility based on soil tests."
+    ],
+    "biological": [
+      "Incorporate compost to improve soil structure and microbial activity, which can suppress some pathogens.",
+      "Encourage beneficial insects that prey on potential pest vectors."
+    ],
+    "chemical": [
+      "Not applicable for a healthy plant. Chemical controls are used preventatively or curatively for specific diseases."
+    ],
+    "notes": "Maintaining plant health focuses on preventative cultural practices that reduce stress and create an unfavorable environment for pathogens."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/eggplant/leaf_spot.json b/diseases_knowledge_base/eggplant/leaf_spot.json
new file mode 100644
index 0000000000000000000000000000000000000000..c67306d2c65d782b0f5b10e2716036f47d5a9400
--- /dev/null
+++ b/diseases_knowledge_base/eggplant/leaf_spot.json
@@ -0,0 +1,141 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "eggplant.disease_fungal.leaf_spot",
+  "aliases": [
+    "Cercospora leaf spot",
+    "Alternaria leaf spot",
+    "frog-eye leaf spot",
+    "Septoria leaf spot"
+  ],
+  "crop": {
+    "common_name": "eggplant",
+    "scientific_name": "Solanum melongena",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "leaf spot",
+    "scientific_name": "Cercospora melongenae, Alternaria spp., Septoria spp.",
+    "alt_names": [
+      "frog-eye spot"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Capnodiales",
+        "family": "Mycosphaerellaceae",
+        "genus": "Cercospora",
+        "species": "melongenae"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "wind",
+      "rain splash",
+      "contaminated tools",
+      "infected seeds"
+    ],
+    "overwintering": [
+      "infected crop debris",
+      "soil",
+      "infected seeds",
+      "solanaceous weeds"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high humidity",
+      "prolonged leaf wetness",
+      "warm temperatures",
+      "poor air circulation",
+      "overhead irrigation"
+    ],
+    "temp_c_day": [
+      24,
+      32
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 10
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of total leaf area affected. A few scattered lesions, primarily on lower leaves.",
+    "moderate": "11-40% of leaf area affected. Lesions are numerous, may be coalescing on lower and mid-canopy leaves. Some minor defoliation may be present.",
+    "severe": ">40% of leaf area affected. Widespread lesions, significant coalescing, extensive chlorosis and necrosis. Severe defoliation is evident.",
+    "notes": "Severity is assessed as the percentage of the total foliar surface area of the plant showing symptoms (lesions, chlorosis, necrosis). Focus on leaves as the primary indicator."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial spots are small, circular, and water-soaked, often appearing on lower, older leaves first.",
+      "Lesions expand to become circular or irregular, typically 2-10 mm in diameter.",
+      "Mature spots develop a tan, gray, or white center with a distinct dark brown or black border, creating a 'frog-eye' appearance.",
+      "A yellow halo may surround the lesion.",
+      "In severe cases, spots merge (coalesce), leading to large, irregular necrotic blotches.",
+      "Affected leaves turn yellow (chlorosis), wither, and drop prematurely, leading to defoliation.",
+      "Tiny black specks (pycnidia or acervuli) may be visible in the center of older lesions, sometimes requiring a hand lens."
+    ],
+    "stems": [
+      "Stem lesions are less common, but can appear as elongated, sunken, dark spots."
+    ],
+    "fruit": [
+      "Fruit spots are rare but may appear as small, sunken, circular lesions, sometimes with a dark border."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Reduced plant vigor and stunted growth due to progressive defoliation.",
+      "Increased risk of sunscald on fruit due to the loss of protective leaf cover."
+    ],
+    "signs_microscopic_or_visible": [
+      "Under high humidity, a sparse, fuzzy, or velvety fungal growth may be visible in the center of lesions."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "phomopsis_blight",
+      "condition_id": "eggplant.disease_fungal.phomopsis_blight",
+      "key_differences": [
+        "Phomopsis lesions are often larger, have a target-like appearance with concentric rings, and are a lighter brown color.",
+        "Phomopsis blight is well known for causing a severe fruit rot, which is not a primary symptom of most leaf spot fungi.",
+        "Phomopsis typically causes distinct stem cankers, especially near the soil line, a symptom absent in leaf spot diseases.",
+        "The black specks (pycnidia) in Phomopsis lesions are usually more numerous and prominent than in Cercospora or Alternaria spots."
+      ]
+    },
+    {
+      "condition_name": "pest_damage",
+      "condition_id": "eggplant.pest.generic",
+      "key_differences": [
+        "Flea beetle damage appears as numerous small, round 'shot-holes' where leaf tissue is completely removed, unlike a fungal lesion which is necrotic tissue.",
+        "Spider mite damage (stippling) consists of thousands of tiny, pale yellow or white dots, lacking the defined necrotic center and dark border of a fungal spot.",
+        "Pest damage lacks any fungal signs like pycnidia or mycelial growth."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified disease-free seed and transplants.",
+      "Practice a 2-3 year crop rotation with non-solanaceous crops.",
+      "Ensure proper plant spacing to promote air circulation and reduce leaf wetness duration.",
+      "Avoid overhead irrigation; use drip or furrow irrigation to keep foliage dry.",
+      "Remove and destroy infected plant debris at the end of the season.",
+      "Maintain a weed-free field, as some weeds can host the pathogens."
+    ],
+    "biological": [
+      "Application of bio-fungicides containing strains of *Bacillus subtilis* or *Trichoderma* species can provide some suppression when applied preventatively."
+    ],
+    "chemical": [
+      "Apply preventative fungicides before disease onset, especially when warm, humid weather is forecast.",
+      "Effective fungicides include those with active ingredients like chlorothalonil, mancozeb, or copper compounds.",
+      "Rotate fungicides with different modes of action (FRAC groups) to prevent the development of resistance."
+    ],
+    "notes": "An integrated pest management (IPM) approach combining cultural practices with judicious fungicide use is the most effective strategy for managing leaf spot."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/eggplant/mosaic_virus.json b/diseases_knowledge_base/eggplant/mosaic_virus.json
new file mode 100644
index 0000000000000000000000000000000000000000..522dd64d52648cb09485b6ca02327e4a0118a396
--- /dev/null
+++ b/diseases_knowledge_base/eggplant/mosaic_virus.json
@@ -0,0 +1,124 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "eggplant.disease_viral.mosaic_virus",
+  "aliases": [
+    "Eggplant mosaic virus (EMV)",
+    "Cucumber mosaic virus on eggplant (CMV)",
+    "Tobacco mosaic virus on eggplant (TMV)",
+    "Alfalfa mosaic virus on eggplant (AMV)"
+  ],
+  "crop": {
+    "common_name": "eggplant",
+    "scientific_name": "Solanum melongena",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "Mosaic Virus",
+    "scientific_name": null,
+    "alt_names": [
+      "EMV",
+      "CMV",
+      "TMV",
+      "AMV"
+    ],
+    "pathogen": {
+      "type": "Virus",
+      "taxonomy": {
+        "kingdom": "Orthornavirae",
+        "phylum": "Kitrinoviricota",
+        "class": "Alsuviricetes",
+        "order": "Martellivirales",
+        "family": "Bromoviridae",
+        "genus": "Cucumovirus",
+        "species": "Cucumber mosaic virus"
+      }
+    }
+  },
+  "issue_type": "disease_viral",
+  "transmission": {
+    "vectors": [
+      "Aphids",
+      "Thrips",
+      "Leafhoppers"
+    ],
+    "dispersal": [
+      "Insect vectors",
+      "Mechanical transmission via contaminated tools or hands",
+      "Infected seed",
+      "Pollen"
+    ],
+    "overwintering": [
+      "Perennial host weeds",
+      "Infected crop debris",
+      "Infected seed",
+      "Overwintering insect vectors"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High populations of aphid vectors",
+      "Proximity to infected host weeds (e.g., nightshades, legumes)",
+      "Use of non-certified seed or infected transplants",
+      "Mechanical operations in the field when plants are wet"
+    ],
+    "temp_c_day": [
+      20,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area on affected leaves shows mottling or discoloration. Plant stunting is minimal or absent.",
+    "moderate": "11-40% of leaf area shows distinct mosaic, yellowing, or blistering. Some leaf distortion and moderate stunting are visible.",
+    "severe": ">40% of total plant foliage is affected, with severe mosaic, leaf malformation (e.g., 'fernleaf'), and significant plant stunting. Fruit may be small, discolored, or deformed.",
+    "notes": "Severity is assessed based on the percentage of symptomatic leaf area across the entire plant and the degree of stunting or fruit malformation. Early infections are typically more severe."
+  },
+  "symptoms": {
+    "leaves": [
+      "Light green to yellow mottling or mosaic pattern on the leaf blade.",
+      "Alternating patches of normal green and light green/yellow tissue.",
+      "Vein clearing, where veins appear translucent or yellow.",
+      "Blistering or puckering (rugosity) of the leaf surface.",
+      "Leaf distortion, such as curling, twisting, or a narrow 'fernleaf' appearance.",
+      "Reduced overall leaf size."
+    ],
+    "stems": [
+      "Shortened internodes, leading to a crowded or bushy appearance."
+    ],
+    "fruit": [
+      "Reduced fruit size and number.",
+      "Blotchy, uneven ripening or discoloration.",
+      "Deformed or bumpy fruit surface.",
+      "Concentric ringspots or necrotic spots may appear on the fruit skin."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "General stunting or dwarfing of the plant.",
+      "Reduced plant vigor and overall yield."
+    ],
+    "signs_microscopic_or_visible": [
+      "No visible signs of the pathogen to the naked eye. Diagnosis requires lab testing (e.g., ELISA, PCR)."
+    ]
+  },
+  "lookalikes": [],
+  "management": {
+    "cultural": [
+      "Use certified virus-free seed and transplants.",
+      "Control aphid vectors early in the season.",
+      "Remove and destroy infected plants and nearby host weeds immediately upon detection.",
+      "Practice good field sanitation by cleaning tools, equipment, and hands.",
+      "Use reflective mulches to deter aphids."
+    ],
+    "biological": [
+      "Promote natural enemies of aphids, such as lady beetles, lacewings, and parasitic wasps."
+    ],
+    "chemical": [
+      "Apply appropriate insecticides to manage vector populations, which helps prevent spread but does not cure infected plants.",
+      "No effective chemical treatments (virucides) exist to cure infected plants."
+    ],
+    "notes": "Management is entirely preventative. Once a plant is infected, it cannot be cured and acts as a source of inoculum for other plants."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/eggplant/pest_damage.json b/diseases_knowledge_base/eggplant/pest_damage.json
new file mode 100644
index 0000000000000000000000000000000000000000..8e03c59faf3366149d312f780ea95a784f6d8edd
--- /dev/null
+++ b/diseases_knowledge_base/eggplant/pest_damage.json
@@ -0,0 +1,149 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "eggplant.unknown.pest_damage",
+  "aliases": [
+    "insect damage",
+    "mite damage",
+    "chewing damage",
+    "sucking damage",
+    "arthropod injury"
+  ],
+  "crop": {
+    "common_name": "eggplant",
+    "scientific_name": "Solanum melongena",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "Pest Damage",
+    "scientific_name": null,
+    "alt_names": [
+      "Insect feeding",
+      "Arthropod feeding injury"
+    ],
+    "pathogen": {
+      "type": "animal",
+      "taxonomy": {
+        "kingdom": "Animalia",
+        "phylum": "Arthropoda",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "Flight (for winged insects)",
+      "Crawling",
+      "Wind (for small insects and mites)",
+      "Transport on infested plant material or equipment"
+    ],
+    "overwintering": [
+      "In soil as eggs, larvae, or pupae",
+      "In crop debris and leaf litter",
+      "On nearby weed or alternative host plants"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Warm, dry conditions (favors spider mites, thrips)",
+      "High humidity (favors some caterpillars and slugs)",
+      "Presence of alternate weed hosts",
+      "Monoculture planting",
+      "Lack of natural enemies"
+    ],
+    "temp_c_day": [
+      20,
+      32
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "< 10% of total leaf area on the plant is affected by feeding.",
+    "moderate": "10-30% of total leaf area is affected; minor damage to fruit may be present.",
+    "severe": "> 30% of total leaf area is affected, with significant defoliation and/or widespread damage to fruit.",
+    "notes": "Severity is measured as the percentage of photosynthetic area damaged or removed. For fruit damage, a qualitative assessment (e.g., number of damaged fruits) may be more appropriate."
+  },
+  "symptoms": {
+    "leaves": [
+      "Irregularly shaped holes or chewed-out sections from chewing insects.",
+      "Skeletonization, where only leaf veins remain after feeding.",
+      "Stippling (collections of tiny yellow or white spots) from sucking insects like mites or leafhoppers.",
+      "Silvery or whitish tunnels (trails) under the leaf surface from leafminers.",
+      "Presence of fine, silk-like webbing, especially on leaf undersides (spider mites).",
+      "Leaf curling, distortion, or cupping, often associated with aphids."
+    ],
+    "stems": [
+      "Boring holes or girdling, sometimes with frass (insect excrement) visible."
+    ],
+    "fruit": [
+      "Superficial scarring, bronzing, or russeting on the skin.",
+      "Sunken, discolored, or corky spots resulting from feeding punctures.",
+      "Holes bored directly into the fruit, which may lead to secondary rot."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Stunted growth or wilting in cases of severe infestation or stem damage."
+    ],
+    "signs_microscopic_or_visible": [
+      "Presence of adult insects, larvae (caterpillars), or eggs on plant surfaces.",
+      "Sticky 'honeydew' exudate, which may be colonized by black sooty mold.",
+      "Frass (insect droppings) on leaves or near stems."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Leaf Spot",
+      "condition_id": "eggplant.disease.leaf_spot",
+      "key_differences": [
+        "Leaf spots are typically circular with distinct, often darker, borders, whereas chewing damage consists of irregular holes with missing tissue.",
+        "Fungal leaf spots cause tissue necrosis and discoloration, but the tissue remains intact initially, unlike chewing damage.",
+        "Leaf spots may have visible fungal fruiting bodies (e.g., tiny black dots) in the lesion center, which are absent in pest damage."
+      ]
+    },
+    {
+      "condition_name": "Phomopsis Blight",
+      "condition_id": "eggplant.disease.phomopsis_blight",
+      "key_differences": [
+        "Phomopsis lesions on leaves are circular, tan-to-brown with a light center, unlike the irregular holes or stippling from pests.",
+        "On fruit, Phomopsis causes large, sunken, circular lesions with concentric rings, distinct from small feeding punctures or bored holes.",
+        "Stem cankers from Phomopsis are a form of tissue decay, whereas insect boring holes are excavations that may contain frass."
+      ]
+    },
+    {
+      "condition_name": "Mosaic Virus",
+      "condition_id": "eggplant.disease.mosaic_virus",
+      "key_differences": [
+        "Mosaic virus causes patterns of light green and yellow mottling on leaves, not the removal of tissue (holes) or stippling seen with pests.",
+        "Virus symptoms are systemic and often follow leaf veins, while pest damage is localized to feeding sites.",
+        "Leaf distortion from viruses is often accompanied by mottling, whereas pest-induced curling might have visible signs like aphids or webbing."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use of physical barriers like floating row covers on young plants.",
+      "Regular scouting and monitoring to detect pest populations early.",
+      "Removal and destruction of heavily infested plant parts.",
+      "Management of nearby weeds that can act as alternate hosts for pests.",
+      "Crop rotation to break pest life cycles."
+    ],
+    "biological": [
+      "Encourage populations of natural enemies (predators and parasitoids) like ladybugs, lacewings, and parasitic wasps.",
+      "Application of microbial insecticides such as Bacillus thuringiensis (Bt) for caterpillars or entomopathogenic fungi for other insects."
+    ],
+    "chemical": [
+      "Application of contact insecticides like insecticidal soaps or horticultural oils for soft-bodied insects.",
+      "Use of selective or broad-spectrum insecticides based on proper pest identification and economic thresholds.",
+      "Avoid overuse of broad-spectrum insecticides to protect beneficial insects."
+    ],
+    "notes": "Accurate identification of the specific pest is crucial before applying chemical controls to ensure efficacy and minimize harm to non-target organisms."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/eggplant/phomopsis_blight.json b/diseases_knowledge_base/eggplant/phomopsis_blight.json
new file mode 100644
index 0000000000000000000000000000000000000000..2e0a4cf65ba598f1921eedea8c69998fcdaeb270
--- /dev/null
+++ b/diseases_knowledge_base/eggplant/phomopsis_blight.json
@@ -0,0 +1,152 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "eggplant.disease_fungal.phomopsis_blight",
+  "aliases": [
+    "Phomopsis fruit rot",
+    "tip-over",
+    "eggplant blight"
+  ],
+  "crop": {
+    "common_name": "eggplant",
+    "scientific_name": "Solanum melongena",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "phomopsis blight",
+    "scientific_name": "Phomopsis vexans",
+    "alt_names": [
+      "Diaporthe vexans"
+    ],
+    "pathogen": {
+      "type": "Fungus",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Sordariomycetes",
+        "order": "Diaporthales",
+        "family": "Diaporthaceae",
+        "genus": "Phomopsis",
+        "species": "vexans"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [
+      "wind-driven rain",
+      "splashing water",
+      "insects (as mechanical carriers)"
+    ],
+    "dispersal": [
+      "infected seed",
+      "infected plant debris",
+      "rain splash",
+      "wind"
+    ],
+    "overwintering": [
+      "in infected plant debris in soil",
+      "on or in seed"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High humidity",
+      "Frequent rainfall or overhead irrigation",
+      "Warm temperatures",
+      "Poor air circulation",
+      "Presence of infected crop residue"
+    ],
+    "temp_c_day": [
+      27,
+      32
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 12
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Few, small lesions (<1 cm) on <10% of leaves; no stem or fruit lesions.",
+    "moderate": "Multiple lesions on 10-40% of leaves; one or more small stem cankers or a single small fruit lesion present.",
+    "severe": "Lesions on >40% of leaves; stem cankers are large and girdling, causing wilt; multiple or large, decaying fruit lesions are present.",
+    "notes": "Severity is assessed based on the combined visual impact on leaves, stems, and fruit, as stem and fruit infections are more damaging than leaf spots alone. This is a qualitative assessment combining multiple factors."
+  },
+  "symptoms": {
+    "leaves": [
+      "Circular to irregular spots, initially gray-brown or tan.",
+      "Spots enlarge, developing a light gray or tan center with a dark brown border.",
+      "Tiny, black, pimple-like structures (pycnidia) often form in the center of older spots.",
+      "Infected leaves may turn yellow and drop prematurely.",
+      "Lesions can start at the leaf margin or in the center."
+    ],
+    "stems": [
+      "Dark, sunken, oval-shaped cankers form, often near the soil line on seedlings (damping-off).",
+      "On mature plants, cankers are gray to brown and can girdle the stem, causing wilting and death of parts above.",
+      "Pycnidia may be visible within stem cankers."
+    ],
+    "fruit": [
+      "Pale, sunken, circular spots appear on the fruit surface.",
+      "Lesions enlarge rapidly, turning brown to black and covering a large area.",
+      "The infected fruit tissue becomes soft and watery, then mummifies.",
+      "Concentric rings of black pycnidia are a characteristic sign on fruit lesions."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Seedlings may collapse at the soil line ('damping-off').",
+      "Mature plants may show wilting or dieback of branches due to stem girdling.",
+      "Overall stunting and reduced plant vigor."
+    ],
+    "signs_microscopic_or_visible": [
+      "Presence of numerous tiny black dots (pycnidia) embedded in the center of leaf, stem, and fruit lesions."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "white mold",
+      "condition_id": "eggplant.disease_fungal.white_mold",
+      "key_differences": [
+        "White mold produces fluffy, white, cottony mycelial growth, which is absent in Phomopsis blight.",
+        "White mold forms hard, black, irregular-shaped bodies (sclerotia), not tiny, embedded pycnidia.",
+        "Lesions from white mold are often watery and tan, not the distinct gray-centered spots of Phomopsis."
+      ]
+    },
+    {
+      "condition_name": "leaf spot",
+      "condition_id": "eggplant.disease_fungal.leaf_spot",
+      "key_differences": [
+        "Other leaf spots (e.g., Cercospora) may have a different color profile, like a 'frog-eye' appearance without the distinct pycnidia.",
+        "Alternaria leaf spot lesions are often darker, more target-like, and may have a velvety texture from sporulation.",
+        "Phomopsis is distinctive when it also causes stem cankers and a characteristic soft fruit rot with pycnidia, which may not co-occur with other leaf spot diseases."
+      ]
+    },
+    {
+      "condition_name": "pest damage",
+      "condition_id": "eggplant.pest_damage",
+      "key_differences": [
+        "Pest damage often involves chewing marks, holes, stippling, or trails, which are not features of Phomopsis lesions.",
+        "Lesions from Phomopsis are caused by a pathogen and will expand over time, unlike static physical damage from an insect.",
+        "Pest damage will not produce fungal signs like pycnidia."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified disease-free seed and transplants.",
+      "Practice crop rotation with non-solanaceous crops for at least 3 years.",
+      "Remove and destroy infected plant debris after harvest.",
+      "Improve air circulation through proper plant spacing.",
+      "Avoid overhead irrigation to minimize leaf wetness."
+    ],
+    "biological": [
+      "Use of bio-fungicides based on Bacillus or Trichoderma species may have some suppressive effect."
+    ],
+    "chemical": [
+      "Application of protective fungicides (e.g., mancozeb, chlorothalonil) before disease onset.",
+      "Systemic fungicides may be used after infection, following local extension recommendations."
+    ],
+    "notes": "An integrated approach combining cultural practices with timely fungicide applications is most effective for management."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/eggplant/symptom_small_leaf_review.json b/diseases_knowledge_base/eggplant/symptom_small_leaf_review.json
new file mode 100644
index 0000000000000000000000000000000000000000..cfef126a6a6c30763cd8448b2e236c9ab47f543b
--- /dev/null
+++ b/diseases_knowledge_base/eggplant/symptom_small_leaf_review.json
@@ -0,0 +1,119 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "eggplant.physiological_symptom.symptom_small_leaf_review",
+  "aliases": [
+    "little leaf of eggplant",
+    "eggplant rosette",
+    "zinc deficiency in eggplant"
+  ],
+  "crop": {
+    "common_name": "eggplant",
+    "scientific_name": "Solanum melongena",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "Small Leaf",
+    "scientific_name": null,
+    "alt_names": [
+      "Little Leaf Disorder",
+      "Rosette"
+    ],
+    "pathogen": {
+      "type": "abiotic_stress_or_disorder",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "physiological_symptom",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Zinc deficiency in soil",
+      "Alkaline soil pH (>7.0)",
+      "High soil phosphorus levels, which can inhibit zinc uptake",
+      "Low soil organic matter",
+      "Waterlogged or compacted soil"
+    ],
+    "temp_c_day": [],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "New leaves are slightly smaller than normal with minor shortening of internodes. Plant growth is only slightly affected.",
+    "moderate": "Leaves are significantly reduced in size (<50% of normal). Internodes are very short, creating a distinct 'rosette' or bushy appearance. Plant is noticeably stunted.",
+    "severe": "Extreme stunting of the entire plant. Leaves are very small, thickened, and tightly clustered. Plant may fail to flower or produce fruit.",
+    "notes": "Severity is assessed based on the degree of leaf size reduction and internode shortening, leading to overall plant stunting. It is not based on discrete lesions."
+  },
+  "symptoms": {
+    "leaves": [
+      "Newly formed leaves are abnormally small, narrow, and sometimes misshapen.",
+      "Leaves may appear thickened, leathery, or brittle.",
+      "Interveinal chlorosis (yellowing between the veins) is common on younger leaves.",
+      "In severe cases, leaf margins may appear wavy or puckered.",
+      "Leaves are clustered together at the top of the plant."
+    ],
+    "stems": [
+      "Internodes (the space between leaf nodes) are drastically shortened.",
+      "Axillary buds may proliferate, contributing to a bushy appearance."
+    ],
+    "fruit": [
+      "Fruit set is often poor or non-existent.",
+      "If fruit develops, it is typically small, stiff, and malformed."
+    ],
+    "roots": [
+      "Root system may be poorly developed, but this is not a primary visual symptom."
+    ],
+    "whole_plant": [
+      "Overall plant growth is severely stunted.",
+      "The plant takes on a bushy, 'rosette' appearance due to shortened internodes and clustered leaves."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Mosaic Virus",
+      "condition_id": "eggplant.viral_symptom.mosaic_virus",
+      "key_differences": [
+        "Mosaic virus causes mottled light and dark green patterns (a 'mosaic') on leaves, which are absent in physiological small leaf.",
+        "Virus-infected leaves are often blistered or distorted in shape, not just uniformly small and narrow.",
+        "Physiological small leaf is characterized by severe internode shortening (rosetting), which is less pronounced in mosaic virus infections."
+      ]
+    },
+    {
+      "condition_name": "Pest Damage",
+      "condition_id": "eggplant.pest_damage.pest_damage",
+      "key_differences": [
+        "Pest damage (e.g., from mites or aphids) often shows visible evidence like insects, webbing, stippling, or sooty mold.",
+        "Leaf distortion from pests is often twisting or curling, whereas physiological small leaf is primarily a reduction in size.",
+        "Symptoms of small leaf disorder are systemic, affecting all new growth, while pest damage may be more localized, especially initially."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Conduct a soil test to confirm nutrient deficiencies, particularly zinc.",
+      "Adjust soil pH to a range of 6.0-6.8 to improve nutrient availability.",
+      "Incorporate well-composted organic matter into the soil.",
+      "Avoid excessive application of phosphorus fertilizers."
+    ],
+    "biological": [],
+    "chemical": [
+      "If zinc deficiency is confirmed, apply a foliar spray of zinc sulfate.",
+      "Soil application of zinc fertilizers can be used as a pre-plant or corrective measure."
+    ],
+    "notes": "Management should be based on a confirmed diagnosis, typically via soil or tissue analysis."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/eggplant/white_mold.json b/diseases_knowledge_base/eggplant/white_mold.json
new file mode 100644
index 0000000000000000000000000000000000000000..8efe510f9c1e2c07a04b177e57ab30619dc1d5e0
--- /dev/null
+++ b/diseases_knowledge_base/eggplant/white_mold.json
@@ -0,0 +1,126 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "eggplant.unknown.white_mold",
+  "aliases": [
+    "Sclerotinia stem rot",
+    "Sclerotinia rot",
+    "Timber rot"
+  ],
+  "crop": {
+    "common_name": "eggplant",
+    "scientific_name": "Solanum melongena",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "white mold",
+    "scientific_name": "Sclerotinia sclerotiorum",
+    "alt_names": [
+      "Sclerotinia stem rot"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Leotiomycetes",
+        "order": "Helotiales",
+        "family": "Sclerotiniaceae",
+        "genus": "Sclerotinia",
+        "species": "sclerotiorum"
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "windborne ascospores",
+      "contaminated soil",
+      "infected plant debris",
+      "farm equipment"
+    ],
+    "overwintering": [
+      "sclerotia in soil",
+      "infected plant debris"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "cool, moist conditions",
+      "dense plant canopy",
+      "poor air circulation",
+      "prolonged leaf wetness",
+      "flowering and senescence stages"
+    ],
+    "temp_c_day": [
+      15,
+      21
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      90,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 16
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "One or two small, water-soaked lesions on stems or leaves, with minimal wilting of a single branch.",
+    "moderate": "Expanding lesions with visible white mycelium on stems, initial wilting of multiple branches, some sclerotia may be visible.",
+    "severe": "Extensive mycelial growth girdling the main stem, significant wilting and collapse of the entire plant, abundant black sclerotia present on and inside stems.",
+    "notes": "Severity is based on the extent of stem girdling and plant collapse, as this is the primary cause of yield loss. Percent leaf area is not a useful metric for this disease."
+  },
+  "symptoms": {
+    "leaves": [
+      "Water-soaked lesions appear, often where a leaf petiole joins the stem.",
+      "Leaves on infected branches turn yellow, wilt, and die.",
+      "Infected leaves may become covered in white, cottony mycelium if conditions are humid."
+    ],
+    "stems": [
+      "Soft, watery lesions develop, typically at nodes, in branch axils, or near the soil line.",
+      "Lesions become covered in a dense, white, cottony fungal growth (mycelium).",
+      "The stem becomes bleached, tan, or light gray in color under the fungal growth.",
+      "Hard, black, irregular-shaped bodies (sclerotia) form on the surface and inside the hollowed-out stem."
+    ],
+    "fruit": [
+      "Fruit develops a watery soft rot, often starting where it contacts an infected stem or the ground.",
+      "The rotting fruit becomes covered in white mycelium.",
+      "Black sclerotia may form on or inside the decaying fruit."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Sudden wilting of one or more branches is a key early symptom.",
+      "The entire plant may collapse and die quickly once the main stem is girdled."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible white, cottony mycelium on affected plant parts.",
+      "Visible hard, black sclerotia, resembling rodent droppings, on or inside stems and fruit."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Phomopsis blight",
+      "condition_id": "eggplant.fungal.phomopsis_blight",
+      "key_differences": [
+        "Phomopsis causes tan to brown, sunken cankers on the stem, often with tiny black dots (pycnidia), whereas white mold causes bleached stems with white, cottony growth.",
+        "White mold produces large, irregular black sclerotia; Phomopsis produces tiny black pycnidia, often in concentric rings.",
+        "White mold is most active in cool, wet weather, while Phomopsis blight is favored by warm, wet weather."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Rotate crops with non-hosts (e.g., grains) for at least 3 years.",
+      "Ensure good soil drainage and avoid over-irrigation.",
+      "Increase plant spacing to improve air circulation and reduce canopy humidity.",
+      "Remove and destroy infected plants immediately to reduce sclerotia buildup in the soil."
+    ],
+    "biological": [
+      "Application of biocontrol agents like *Coniothyrium minitans* to the soil can parasitize and reduce sclerotia populations."
+    ],
+    "chemical": [
+      "Preventative fungicide applications targeted at the base of the plant and during flowering may be effective in high-risk areas."
+    ],
+    "notes": "Management focuses on reducing soil inoculum (sclerotia) and managing canopy moisture. Once a plant is infected and wilting, it cannot be saved and should be removed."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/eggplant/wilt_generic_review.json b/diseases_knowledge_base/eggplant/wilt_generic_review.json
new file mode 100644
index 0000000000000000000000000000000000000000..7e0092817c4ccd5e250210ff0a448fa590d3b19b
--- /dev/null
+++ b/diseases_knowledge_base/eggplant/wilt_generic_review.json
@@ -0,0 +1,139 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "eggplant.disease_fungal.wilt_generic_review",
+  "aliases": [
+    "Vascular wilt",
+    "Verticillium wilt",
+    "Fusarium wilt"
+  ],
+  "crop": {
+    "common_name": "eggplant",
+    "scientific_name": "Solanum melongena",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "Fungal Wilt",
+    "scientific_name": "Verticillium dahliae, Fusarium oxysporum f. sp. melongenae",
+    "alt_names": [
+      "Vascular wilt syndrome"
+    ],
+    "pathogen": {
+      "type": "fungus",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "Verticillium, Fusarium",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [
+      "Contaminated farm equipment",
+      "Infected transplants",
+      "Root-knot nematodes (as wounding agents)"
+    ],
+    "dispersal": [
+      "Soilborne pathogen movement",
+      "Infected plant debris",
+      "Contaminated irrigation water"
+    ],
+    "overwintering": [
+      "In soil as microsclerotia (Verticillium) or chlamydospores (Fusarium)",
+      "In infected crop residue",
+      "On roots of perennial weeds"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Moderate to warm soil temperatures",
+      "High soil moisture or poor drainage",
+      "Soil compaction",
+      "Continuous cropping of susceptible plants (monoculture)",
+      "Plant stress from other factors (e.g., nematode damage)"
+    ],
+    "temp_c_day": [
+      21,
+      28
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "One or two lower leaves are yellowing or wilting. Plant may show slight wilting on one side during the hottest part of the day but recovers at night.",
+    "moderate": "A significant portion of the plant (25-50%) shows persistent wilting. Lower leaves are yellow and brown. Plant is visibly stunted compared to healthy neighbors.",
+    "severe": "The entire plant is severely wilted, necrotic, and near death. Most leaves are brown and dry. Plant collapse is imminent or has occurred.",
+    "notes": "Severity is based on the proportion of the plant affected by wilting and necrosis, and the degree of stunting. As this is a soilborne vascular disease, leaf wetness is not a primary driver of infection."
+  },
+  "symptoms": {
+    "leaves": [
+      "Wilting of lower leaves, often beginning on one side of the plant or one side of a leaf.",
+      "Yellowing (chlorosis) of leaf tissue, typically starting at the margins and progressing inward between the veins.",
+      "V-shaped, yellow to brown lesions may form at the edge of older leaves.",
+      "Affected leaves eventually turn brown, become brittle, and may drop.",
+      "Upper leaves may appear pale or dull green."
+    ],
+    "stems": [
+      "Internal vascular tissue shows a tan to dark brown discoloration, visible as a ring or streaks when the stem is cut.",
+      "The exterior of the stem often appears normal until the disease is advanced."
+    ],
+    "fruit": [
+      "Fruit may be smaller than normal, discolored, or fail to develop.",
+      "Sunscald can occur on fruit due to defoliation and loss of canopy cover."
+    ],
+    "roots": [
+      "Roots may show some browning or decay in late stages, but often appear healthy early on.",
+      "Vascular discoloration extends from the roots up into the stem."
+    ],
+    "whole_plant": [
+      "General stunting and reduced vigor.",
+      "Wilting is most noticeable during periods of high temperature or water demand.",
+      "Unilateral (one-sided) wilting of the plant is a classic diagnostic symptom.",
+      "Eventual plant death."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Phomopsis Blight",
+      "condition_id": "eggplant.disease_fungal.phomopsis_blight",
+      "key_differences": [
+        "Phomopsis causes distinct, sunken, dark cankers on the stem, often near the soil line, which are absent in vascular wilts.",
+        "Phomopsis also causes circular, tan leaf spots with dark borders and a soft, brown fruit rot.",
+        "Wilting from Phomopsis is due to the girdling effect of the stem canker, not a systemic vascular infection."
+      ]
+    },
+    {
+      "condition_name": "White Mold",
+      "condition_id": "eggplant.disease_fungal.white_mold",
+      "key_differences": [
+        "White mold produces visible signs: fluffy white cottony mycelium on stems, leaves, or fruit.",
+        "Hard, black, irregular sclerotia (resembling rodent droppings) form on or inside infected plant parts.",
+        "White mold causes a watery, soft rot and stem bleaching, not the internal vascular browning characteristic of Fusarium/Verticillium wilt."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified disease-free seed and resistant cultivars.",
+      "Practice long crop rotations (4-5 years) with non-solanaceous crops.",
+      "Sanitize all tools, stakes, and equipment between plantings.",
+      "Maintain optimal soil health and avoid over-fertilization, especially with nitrogen.",
+      "Remove and destroy infected plants and crop debris immediately."
+    ],
+    "biological": [
+      "Inoculation of soil with beneficial microbes like *Trichoderma* spp. may help suppress the pathogen."
+    ],
+    "chemical": [
+      "Pre-plant soil fumigation can reduce pathogen load but is often not practical or economical for all growers.",
+      "Post-infection fungicide applications are generally ineffective for controlling vascular wilts."
+    ],
+    "notes": "Management must be preventative. Once a plant is infected, it cannot be cured. The focus is on reducing soil inoculum and using resistant varieties."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/grape/anthracnose.json b/diseases_knowledge_base/grape/anthracnose.json
new file mode 100644
index 0000000000000000000000000000000000000000..f8b592a41b1badac20655adb7193fd77fb305c65
--- /dev/null
+++ b/diseases_knowledge_base/grape/anthracnose.json
@@ -0,0 +1,141 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "grape.disease_fungal.anthracnose",
+  "aliases": [
+    "Bird's-eye rot",
+    "Grapevine anthracnose",
+    "Black spot"
+  ],
+  "crop": {
+    "common_name": "Grape",
+    "scientific_name": "Vitis vinifera",
+    "family": "Vitaceae"
+  },
+  "condition": {
+    "common_name": "Anthracnose",
+    "scientific_name": "Elsino\u00eb ampelina",
+    "alt_names": [],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Myriangiales",
+        "family": "Elsinoaceae",
+        "genus": "Elsino\u00eb",
+        "species": "ampelina"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "rain_splash",
+      "wind_driven_rain",
+      "contaminated_tools"
+    ],
+    "overwintering": [
+      "infected_canes_and_shoots",
+      "mummified_berries_on_vine_or_ground"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "prolonged_rainy_periods",
+      "high_humidity",
+      "poor_air_circulation_in_canopy",
+      "susceptible_cultivars"
+    ],
+    "temp_c_day": [
+      24,
+      32
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      80,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 12
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "< 5% of leaf area affected, or < 10 lesions per shoot/cluster.",
+    "moderate": "5-25% of leaf area affected, with some shoot distortion or berry damage.",
+    "severe": "> 25% of leaf area affected, significant shoot girdling, major fruit loss, and defoliation.",
+    "notes": "Severity is assessed on the most affected plant part. For leaves, percent area is used. For shoots and fruit, a qualitative assessment of lesion density and damage may be more practical."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, circular, reddish-brown to black spots appear on young leaves.",
+      "Lesion centers turn grayish-white and often drop out, creating a 'shot-hole' appearance.",
+      "A distinct, dark brown or black, slightly raised border surrounds the lesion.",
+      "Infected leaves may become distorted, curled, or ragged."
+    ],
+    "stems": [
+      "Affects young, green shoots, petioles, and tendrils.",
+      "Lesions are small, circular to elliptical, and sunken.",
+      "Initially purplish-black, the centers become grayish with a dark, raised border.",
+      "Severe infections can girdle shoots, causing dieback of the tips."
+    ],
+    "fruit": [
+      "Lesions on berries are the most distinctive 'bird's-eye rot' symptom.",
+      "Starts as a small, circular, reddish-brown spot.",
+      "The spot enlarges, becomes sunken, and the center turns light gray or violet.",
+      "A prominent, dark reddish-brown to black ring surrounds the light center.",
+      "Infected berries may crack, fail to ripen, or shrivel."
+    ],
+    "roots": [],
+    "whole_plant": [],
+    "signs_microscopic_or_visible": [
+      "Under wet conditions, pinkish spore masses (acervuli) may be visible in the center of lesions, often requiring magnification."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Black Rot",
+      "condition_id": "grape.disease_fungal.black_rot",
+      "key_differences": [
+        "Fruit lesions in Black Rot result in hard, black, shriveled 'mummies' covered in tiny black dots (pycnidia), not 'bird's-eye' spots.",
+        "Leaf spots from Black Rot do not drop out to form 'shot-holes'; they typically contain visible black pycnidia arranged in a ring.",
+        "Anthracnose lesions on shoots are deeply sunken or cankered, while Black Rot lesions are more superficial."
+      ]
+    },
+    {
+      "condition_name": "Pest Damage",
+      "condition_id": "grape.pest_damage",
+      "key_differences": [
+        "Shot-holes from insect feeding (e.g., flea beetles) are typically just holes, lacking the characteristic gray center and dark, raised border of an anthracnose lesion.",
+        "Pest damage does not produce the sunken, canker-like lesions on stems or 'bird's-eye' spots on fruit.",
+        "Look for signs of insects, frass, or chewing marks around the holes."
+      ]
+    },
+    {
+      "condition_name": "Isariopsis Leaf Spot",
+      "condition_id": "grape.disease_fungal.isariopsis_leaf_spot",
+      "key_differences": [
+        "Isariopsis lesions are often more angular or irregular, bounded by leaf veins, whereas anthracnose spots are distinctly circular.",
+        "Isariopsis lesions do not typically have centers that fall out to create a 'shot-hole' effect.",
+        "The underside of Isariopsis lesions may show a sooty or olive-green mold growth, which is absent in anthracnose."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant disease-free nursery stock.",
+      "Prune out and destroy infected canes, shoots, and fruit clusters during the dormant season.",
+      "Promote good air circulation through proper pruning, trellising, and canopy management.",
+      "Improve soil drainage and avoid overhead irrigation."
+    ],
+    "biological": [
+      "Some bio-fungicides based on Bacillus subtilis may offer partial suppression when applied preventatively."
+    ],
+    "chemical": [
+      "Apply dormant sprays (e.g., lime sulfur) to reduce overwintering inoculum.",
+      "Use protective fungicides starting from early shoot growth, especially during wet periods.",
+      "Fungicide classes like strobilurins (QoIs), DMIs, and mancozeb are often effective, but rotation is crucial to prevent resistance."
+    ],
+    "notes": "Management is most effective when integrating cultural practices with a well-timed fungicide program based on weather forecasts and vine growth stage."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/grape/bacterial_leaf_spot.json b/diseases_knowledge_base/grape/bacterial_leaf_spot.json
new file mode 100644
index 0000000000000000000000000000000000000000..1ca4f584692f47252e53adc4e658a25376989919
--- /dev/null
+++ b/diseases_knowledge_base/grape/bacterial_leaf_spot.json
@@ -0,0 +1,142 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "grape.disease_bacterial.bacterial_leaf_spot",
+  "aliases": [
+    "Grape bacterial spot",
+    "Xanthomonas leaf spot",
+    "Grape bacterial blight"
+  ],
+  "crop": {
+    "common_name": "grape",
+    "scientific_name": "Vitis vinifera",
+    "family": "Vitaceae"
+  },
+  "condition": {
+    "common_name": "bacterial leaf spot",
+    "scientific_name": "Xanthomonas campestris pv. viticola",
+    "alt_names": [],
+    "pathogen": {
+      "type": "disease_bacterial",
+      "taxonomy": {
+        "kingdom": "Bacteria",
+        "phylum": "Pseudomonadota",
+        "class": "Gammaproteobacteria",
+        "order": "Lysobacterales",
+        "family": "Lysobacteraceae",
+        "genus": "Xanthomonas",
+        "species": "X. campestris pv. viticola"
+      }
+    }
+  },
+  "issue_type": "disease_bacterial",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "rain_splash",
+      "wind_driven_rain",
+      "contaminated_tools",
+      "infected_cuttings"
+    ],
+    "overwintering": [
+      "infected_canes",
+      "dormant_buds",
+      "plant_debris"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high_humidity",
+      "frequent_rainfall",
+      "warm_temperatures",
+      "poor_air_circulation",
+      "overhead_irrigation"
+    ],
+    "temp_c_day": [
+      25,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      80,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 4
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area affected with scattered, small lesions.",
+    "moderate": "11-40% of leaf area affected; lesions may be coalescing, some yellowing present.",
+    "severe": ">40% of leaf area affected; extensive lesion coalescence, significant yellowing, and potential defoliation.",
+    "notes": "Severity is estimated as the percentage of a single, representative leaf's surface area covered by lesions and associated chlorosis. This is a practical method for image labeling."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, angular, water-soaked lesions appear first, often limited by leaf veins.",
+      "Lesions darken over time to dark brown or black.",
+      "A distinct chlorotic (yellow) halo frequently surrounds the dark lesions.",
+      "Lesions can merge (coalesce) to form larger, irregular necrotic patches.",
+      "The center of older lesions may fall out, creating a 'shot-hole' appearance.",
+      "Infected leaves may become distorted, turn yellow, and drop prematurely."
+    ],
+    "stems": [
+      "Elongated, dark brown to black, slightly sunken cankers can form on young shoots.",
+      "In severe cases, shoot tips may die back."
+    ],
+    "fruit": [
+      "Small, circular, sunken, dark brown spots may appear on berries, though this is less common."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Reduced plant vigor and defoliation in severe infections."
+    ],
+    "signs_microscopic_or_visible": [
+      "Under very high humidity, shiny bacterial ooze may be visible on the surface of lesions."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "black rot",
+      "condition_id": "grape.disease_fungal.black_rot",
+      "key_differences": [
+        "Black rot lesions are circular with tan centers, whereas bacterial spots are angular and uniformly dark.",
+        "Black rot lesions contain tiny black dots (pycnidia) in a ring, which are absent in bacterial spot.",
+        "The halo around black rot lesions is typically a less distinct, brownish border, not a bright yellow halo."
+      ]
+    },
+    {
+      "condition_name": "anthracnose",
+      "condition_id": "grape.disease_fungal.anthracnose",
+      "key_differences": [
+        "Anthracnose lesions are circular and sunken with a distinct gray-white center and a dark, raised border ('bird's-eye' spot).",
+        "Bacterial spots are angular, not circular, and lack the gray center and raised border.",
+        "Anthracnose often causes more severe and numerous 'shot-holes' than bacterial spot."
+      ]
+    },
+    {
+      "condition_name": "isariopsis leaf spot",
+      "condition_id": "grape.disease_fungal.isariopsis_leaf_spot",
+      "key_differences": [
+        "Isariopsis lesions are reddish-brown and angular but often have a more diffuse, less defined border.",
+        "The underside of Isariopsis lesions may show a whitish-gray moldy growth (fungal structures), which is absent in bacterial spot.",
+        "The bright yellow halo is a much more consistent and prominent feature of bacterial leaf spot."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant resistant or less susceptible grape cultivars.",
+      "Prune to improve air circulation and promote faster drying of foliage.",
+      "Avoid overhead irrigation; use drip irrigation instead.",
+      "Remove and destroy infected canes and fallen leaves during dormancy.",
+      "Use certified, disease-free planting material."
+    ],
+    "biological": [
+      "Applications of microbial products containing *Bacillus subtilis* may provide some suppression when used preventatively."
+    ],
+    "chemical": [
+      "Apply copper-based bactericides preventatively before rainy, warm periods.",
+      "Consult local extension services for recommended and registered products and application timing."
+    ],
+    "notes": "Management relies heavily on preventative cultural practices. Chemical controls are most effective when applied before infection becomes established."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/grape/black_rot.json b/diseases_knowledge_base/grape/black_rot.json
new file mode 100644
index 0000000000000000000000000000000000000000..3850af6cd4053deb0989acfe2f2155dae3d83c11
--- /dev/null
+++ b/diseases_knowledge_base/grape/black_rot.json
@@ -0,0 +1,126 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "grape.disease_fungal.black_rot",
+  "aliases": [
+    "grape black rot"
+  ],
+  "crop": {
+    "common_name": "grape",
+    "scientific_name": "Vitis spp.",
+    "family": "Vitaceae"
+  },
+  "condition": {
+    "common_name": "black rot",
+    "scientific_name": "Guignardia bidwellii",
+    "alt_names": [],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Botryosphaeriales",
+        "family": "Botryosphaeriaceae",
+        "genus": "Guignardia",
+        "species": "bidwellii"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "rain_splash",
+      "wind_driven_rain"
+    ],
+    "overwintering": [
+      "mummified_fruit_on_vine_or_ground",
+      "lesions_on_canes_and_tendrils"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Warm, humid weather",
+      "Prolonged leaf wetness",
+      "Poor air circulation in the canopy",
+      "Presence of overwintering inoculum (mummies, cankers)"
+    ],
+    "temp_c_day": [
+      20,
+      27
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 6
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Few leaf spots (<5% area on symptomatic leaves); <10% of berries in affected clusters show symptoms.",
+    "moderate": "Multiple, coalescing leaf spots (5-25% area on symptomatic leaves); 10-50% of berries in affected clusters are mummified.",
+    "severe": "Extensive leaf spotting leading to some defoliation (>25% leaf area); >50% of berries in affected clusters are mummified, resulting in significant yield loss.",
+    "notes": "Severity is best assessed by combining leaf and fruit symptoms. Fruit infection is the primary cause of economic damage. Assessment should be made on a representative sample of clusters and leaves throughout the vineyard."
+  },
+  "symptoms": {
+    "leaves": [
+      "Circular, tan to reddish-brown lesions, 2-10 mm in diameter, appear on upper leaf surfaces.",
+      "Lesions are surrounded by a distinct, dark brown to black border.",
+      "Tiny, black, pimple-like fruiting bodies (pycnidia) form in a ring-like pattern within the lesion.",
+      "The center of older lesions may turn lighter brown and become slightly sunken."
+    ],
+    "stems": [
+      "Elongated, black, slightly sunken cankers can form on young shoots, petioles, and tendrils.",
+      "Pycnidia may be visible within these stem lesions."
+    ],
+    "fruit": [
+      "Infection begins as a small, whitish spot on a developing berry, often surrounded by a brown halo.",
+      "The spot rapidly enlarges, causing the entire berry to rot and turn from green to reddish-brown, then black.",
+      "Infected berries shrivel into hard, black, wrinkled 'mummies'.",
+      "The surface of mummified fruit becomes covered with numerous black pycnidia."
+    ],
+    "roots": [],
+    "whole_plant": [],
+    "signs_microscopic_or_visible": [
+      "Presence of black, flask-shaped pycnidia arranged in a ring on leaf lesions or scattered on fruit mummies."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "anthracnose",
+      "condition_id": "grape.disease_fungal.anthracnose",
+      "key_differences": [
+        "Anthracnose leaf spots are angular with dark borders and often develop a 'shot-hole' appearance where the center falls out; black rot lesions are circular and remain intact.",
+        "Anthracnose fruit lesions are sunken 'bird's eye spots' with a gray/pink center and dark border; black rot affects the entire berry, turning it into a uniform black mummy.",
+        "Anthracnose stem lesions are typically deeper and more crater-like than those of black rot."
+      ]
+    },
+    {
+      "condition_name": "downy mildew",
+      "condition_id": "grape.disease_oomycete.downy_mildew",
+      "key_differences": [
+        "Downy mildew leaf spots are initially yellowish, 'oily' spots on the upper surface, not tan with a dark border like black rot.",
+        "Downy mildew produces a white, fluffy fungal growth on the underside of leaves in humid conditions; black rot produces black pycnidia on the upper surface.",
+        "Downy mildew-infected fruit becomes leathery and brown but does not shrivel into a hard, black mummy covered in pycnidia."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Sanitation: Remove and destroy mummified fruit and infected canes during dormant pruning.",
+      "Canopy management: Use pruning and training systems that improve air circulation and sunlight penetration to promote rapid drying.",
+      "Select resistant or less susceptible grape cultivars.",
+      "Control weeds to reduce humidity within the vine canopy."
+    ],
+    "biological": [
+      "Application of bio-fungicides containing strains of *Bacillus subtilis* or *Bacillus amyloliquefaciens* may provide some suppression when used in a preventative program."
+    ],
+    "chemical": [
+      "Implement a preventative fungicide spray program starting before bloom and continuing through veraison.",
+      "Rotate fungicides with different modes of action (FRAC groups) to prevent resistance.",
+      "Effective chemical classes include mancozeb, captan, strobilurins (QoI), and demethylation inhibitors (DMI)."
+    ],
+    "notes": "Fungicide application timing is critical and should be guided by disease prediction models, weather forecasts (impending rain events), and vine phenology."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/grape/downy_mildew.json b/diseases_knowledge_base/grape/downy_mildew.json
new file mode 100644
index 0000000000000000000000000000000000000000..ec4c1452d10b5c78d0367ecd3a0e2ba8ec94127c
--- /dev/null
+++ b/diseases_knowledge_base/grape/downy_mildew.json
@@ -0,0 +1,137 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "grape.disease_fungal.downy_mildew",
+  "aliases": [
+    "Grapevine downy mildew",
+    "Plasmopara viticola"
+  ],
+  "crop": {
+    "common_name": "Grape",
+    "scientific_name": "Vitis spp.",
+    "family": "Vitaceae"
+  },
+  "condition": {
+    "common_name": "Downy Mildew",
+    "scientific_name": "Plasmopara viticola",
+    "alt_names": [],
+    "pathogen": {
+      "type": "disease_oomycete",
+      "taxonomy": {
+        "kingdom": "Stramenopila",
+        "phylum": "Oomycota",
+        "class": "Oomycetes",
+        "order": "Peronosporales",
+        "family": "Peronosporaceae",
+        "genus": "Plasmopara",
+        "species": "viticola"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "wind",
+      "rain splash"
+    ],
+    "overwintering": [
+      "oospores in infected leaf litter on the vineyard floor"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high relative humidity (>95%)",
+      "frequent rainfall",
+      "warm temperatures",
+      "poor air circulation in the canopy"
+    ],
+    "temp_c_day": [
+      20,
+      26
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      95,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 4
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf surface showing symptoms. Lesions are few and scattered.",
+    "moderate": "11-40% of leaf surface is symptomatic. Multiple lesions may be coalescing.",
+    "severe": ">40% of leaf surface is symptomatic, often with significant necrosis, leading to premature defoliation or fruit rot.",
+    "notes": "Assessment is typically made on the most affected leaves. For whole-plant severity, consider the proportion of affected leaves and the extent of fruit cluster infection."
+  },
+  "symptoms": {
+    "leaves": [
+      "Yellow, circular, translucent spots resembling oil stains ('oilspots') on the upper leaf surface.",
+      "White, downy or cotton-like fungal growth (sporulation) on the lower leaf surface, directly beneath the oilspots.",
+      "Lesions may become angular as they are restricted by leaf veins, forming a mosaic-like pattern.",
+      "Late-season infections can cause lesions to turn reddish-brown and necrotic.",
+      "Severely infected leaves may curl, wither, and drop prematurely."
+    ],
+    "stems": [
+      "Infected young shoots, tendrils, and petioles can become water-soaked and distorted.",
+      "White, downy sporulation may appear on infected stem tissues.",
+      "Affected shoots may curl and eventually die."
+    ],
+    "fruit": [
+      "Young, infected berries turn light brown to purple, cease development, shrivel, and drop.",
+      "Berries may be covered in the characteristic white downy sporulation.",
+      "Later infections on older berries may not show sporulation but cause them to become soft, discolored, and easily detached."
+    ],
+    "roots": [],
+    "whole_plant": [],
+    "signs_microscopic_or_visible": [
+      "Visible white, downy sporulation (sporangiophores and sporangia) on the underside of leaves, shoots, and young fruit, most prominent in high humidity."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Powdery Mildew",
+      "condition_id": "grape.disease_fungal.powdery_mildew",
+      "key_differences": [
+        "Downy mildew's fungal growth is white, downy/cottony, and almost exclusively on the **lower** leaf surface; powdery mildew's growth is grayish-white, dusty/powdery, and appears on **both** upper and lower surfaces.",
+        "Downy mildew causes distinct yellow 'oilspots' on the upper leaf surface; powdery mildew causes more diffuse chlorosis or a dusty coating without distinct oilspots.",
+        "Downy mildew lesions are often limited by veins (angular), while powdery mildew growth is more superficial and can cover the entire leaf without being vein-limited."
+      ]
+    },
+    {
+      "condition_name": "Black Rot",
+      "condition_id": "grape.disease_fungal.black_rot",
+      "key_differences": [
+        "Black rot leaf spots are circular, tan-to-brown with a distinct dark border, and contain tiny black specks (pycnidia); downy mildew 'oilspots' are yellow and lack pycnidia.",
+        "Downy mildew produces white, fuzzy growth on the leaf underside; black rot does not produce any visible fungal growth on leaves.",
+        "On fruit, black rot causes berries to turn black, mummify, and become covered in black pycnidia, whereas downy mildew causes berries to become soft, discolored, and may show white sporulation."
+      ]
+    },
+    {
+      "condition_name": "Pest Damage",
+      "condition_id": "grape.pest_insect.unspecified",
+      "key_differences": [
+        "Pest damage, such as from leafhoppers, often causes V-shaped yellowing at the leaf tip or margin ('hopperburn'), not the circular 'oilspots' of downy mildew.",
+        "Pest damage will never produce white, downy fungal growth on the leaf underside.",
+        "With pest damage, one might find insects, eggs, or cast skins on the leaf surface, which are absent in downy mildew."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Promote good air circulation via proper pruning, trellising, and canopy management.",
+      "Select disease-resistant or less susceptible grape cultivars.",
+      "Remove and destroy fallen leaves and prunings to reduce overwintering inoculum.",
+      "Use drip irrigation instead of overhead sprinklers to minimize leaf wetness duration."
+    ],
+    "biological": [
+      "Applications of bio-fungicides containing *Bacillus subtilis* or other beneficial microbes can offer some suppression when disease pressure is low."
+    ],
+    "chemical": [
+      "Apply protectant fungicides (e.g., copper, mancozeb) before infection events.",
+      "Use systemic or translaminar fungicides (e.g., metalaxyl, fosetyl-al) for curative or post-infection control.",
+      "Follow a spray schedule based on weather-driven disease prediction models.",
+      "Rotate fungicide modes of action to mitigate the risk of pathogen resistance."
+    ],
+    "notes": "Effective management relies on an integrated approach combining cultural practices with timely and targeted fungicide applications."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/grape/esca_black_measles.json b/diseases_knowledge_base/grape/esca_black_measles.json
new file mode 100644
index 0000000000000000000000000000000000000000..75b0ae6c49dbe2e1211fe85aabbf8b45fd97414a
--- /dev/null
+++ b/diseases_knowledge_base/grape/esca_black_measles.json
@@ -0,0 +1,142 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "grape.disease_fungal.esca_black_measles",
+  "aliases": [
+    "Esca disease complex",
+    "Black measles",
+    "Apoplexy",
+    "Tiger stripe disease"
+  ],
+  "crop": {
+    "common_name": "grape",
+    "scientific_name": "Vitis vinifera",
+    "family": "Vitaceae"
+  },
+  "condition": {
+    "common_name": "Esca (Black Measles)",
+    "scientific_name": "Phaeomoniella chlamydospora, Phaeoacremonium minimum, Fomitiporia mediterranea, and others",
+    "alt_names": [
+      "Grape apoplexy",
+      "Young esca",
+      "Esca proper"
+    ],
+    "pathogen": {
+      "type": "fungal_complex",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Basidiomycota",
+        "class": "Agaricomycetes",
+        "order": "Hymenochaetales",
+        "family": "Hymenochaetaceae",
+        "genus": "Fomitiporia",
+        "species": "mediterranea"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [
+      "Contaminated pruning tools"
+    ],
+    "dispersal": [
+      "Rain splash (of spores from fungal conks)",
+      "Infected propagation material (cuttings, rootstock)"
+    ],
+    "overwintering": [
+      "As mycelium within the permanent woody structures (trunk, cordons) of infected vines"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Mature vines (>8 years old)",
+      "Large pruning wounds made during high rainfall periods",
+      "Drought stress or other environmental stressors",
+      "Vineyards with a history of the disease"
+    ],
+    "temp_c_day": [
+      25,
+      35
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Scattered leaves with characteristic 'tiger-stripe' symptoms on one or two shoots; no visible dieback.",
+    "moderate": "Multiple shoots or a single cordon show distinct foliar symptoms; minor shoot wilting may be present.",
+    "severe": "Widespread foliar symptoms across the vine, significant dieback of cordons, or sudden collapse of the entire vine (apoplexy).",
+    "notes": "Severity is based on external symptom expression in the canopy, as the internal wood infection is not visible. Symptom expression can be erratic from year to year."
+  },
+  "symptoms": {
+    "leaves": [
+      "Distinctive 'tiger-stripe' pattern: interveinal areas turn yellow (chlorotic) then brown (necrotic).",
+      "Necrotic areas are often bordered by a dark red or purplish margin.",
+      "Leaf margins may look scorched or burnt.",
+      "In the acute 'apoplexy' form, leaves suddenly wilt, dry out, and remain attached to the shoot."
+    ],
+    "stems": [
+      "Internally, a cross-section of the trunk or cordon reveals dark brown to black spots ('black goo') in the xylem.",
+      "In older infections, a central column of soft, spongy, yellowish-white wood rot is present.",
+      "Affected shoots may show stunted growth or wilt during hot periods."
+    ],
+    "fruit": [
+      "Small, dark purple to black, circular spots ('measles') develop on the berry skin.",
+      "The spots may be surrounded by a slightly lighter halo.",
+      "In severe cases, berries can crack, shrivel, or have a bitter taste."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Chronic form shows a gradual decline in vine vigor over several years.",
+      "Acute form ('apoplexy') involves the sudden death of part or all of the vine in mid-summer."
+    ],
+    "signs_microscopic_or_visible": [
+      "In mature infections, shelf-like fungal conks (fruiting bodies) of *Fomitiporia* may emerge from old, large pruning wounds on the trunk."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Black Rot",
+      "condition_id": "grape.disease_fungal.black_rot",
+      "key_differences": [
+        "Black rot leaf spots are circular and tan with tiny black pycnidia (dots) inside, unlike Esca's interveinal stripes.",
+        "Black rot causes entire berries to shrivel into hard, black 'mummies', whereas Esca causes distinct 'measles' spots on otherwise intact berries.",
+        "Esca is a systemic wood-decaying disease; Black rot is primarily a foliar and fruit disease without internal trunk rot."
+      ]
+    },
+    {
+      "condition_name": "Pest Damage",
+      "condition_id": "grape.pest.unspecified",
+      "key_differences": [
+        "Leafhopper damage causes stippling or angular yellowing, not the broad interveinal 'tiger stripes' of Esca.",
+        "Mite damage may cause bronzing or yellowing and often includes fine webbing, which is absent in Esca.",
+        "Pest damage does not cause internal wood decay, 'black measles' on fruit, or sudden vine apoplexy."
+      ]
+    },
+    {
+      "condition_name": "Downy Mildew",
+      "condition_id": "grape.disease_fungal.downy_mildew",
+      "key_differences": [
+        "Downy mildew lesions are yellowish, oily-looking, angular spots, not the striped necrosis of Esca.",
+        "In humid weather, downy mildew produces a distinct white, fuzzy fungal growth on the underside of leaf spots; Esca does not.",
+        "Downy mildew primarily affects young, growing tissues, while Esca is a disease of mature, woody trunks and cordons."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Practice delayed pruning (late winter/early spring) to allow for faster wound healing.",
+      "Avoid making large pruning cuts, or protect them with a wound sealant.",
+      "Sanitize pruning tools (e.g., with alcohol or bleach solution) between vines, especially after cutting infected wood.",
+      "Remove and destroy dead vines or arms to reduce inoculum sources."
+    ],
+    "biological": [
+      "Application of Trichoderma-based bio-pesticides to fresh pruning wounds can help prevent colonization by pathogens."
+    ],
+    "chemical": [
+      "Use of registered fungicidal paints or sealants on large pruning wounds immediately after cutting.",
+      "Some trunk-injected fungicides (e.g., phosphonates) are used with variable success to manage symptoms."
+    ],
+    "notes": "Management is primarily preventative. There are no curative treatments for vines with established internal wood decay."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/grape/healthy.json b/diseases_knowledge_base/grape/healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..8d911c4108b71c29519d972c51aa729e6d55d4a8
--- /dev/null
+++ b/diseases_knowledge_base/grape/healthy.json
@@ -0,0 +1,139 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "grape.healthy.healthy",
+  "aliases": [
+    "normal",
+    "unaffected",
+    "asymptomatic"
+  ],
+  "crop": {
+    "common_name": "grape",
+    "scientific_name": "Vitis vinifera",
+    "family": "Vitaceae"
+  },
+  "condition": {
+    "common_name": "healthy",
+    "scientific_name": "",
+    "alt_names": [
+      "normal growth",
+      "no disease"
+    ],
+    "pathogen": {
+      "type": "none",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "healthy",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Full sun exposure (6-8 hours/day)",
+      "Well-drained soil",
+      "Good air circulation through the canopy",
+      "Appropriate irrigation and nutrient management"
+    ],
+    "temp_c_day": [
+      25,
+      32
+    ],
+    "temp_c_night": [
+      15,
+      20
+    ],
+    "relative_humidity_pct": [
+      40,
+      70
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Plant is completely free of visible symptoms of stress, disease, or pest damage.",
+    "moderate": "Not applicable for a healthy plant.",
+    "severe": "Not applicable for a healthy plant.",
+    "notes": "This rubric confirms the absence of any condition. Any deviation from 'mild' indicates a non-healthy state."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uniformly green color, consistent with the cultivar.",
+      "No spots, lesions, discoloration, or necrosis.",
+      "Turgid, fully expanded leaf blades.",
+      "Smooth leaf surfaces, free of any powdery or downy growth on either side.",
+      "Leaf margins are intact and shaped according to the cultivar's characteristics."
+    ],
+    "stems": [
+      "Shoots and canes are firm and appropriately colored (green for new growth, brown/woody for mature canes).",
+      "No cankers, galls, lesions, or dieback.",
+      "Internodes are of a consistent, healthy length."
+    ],
+    "fruit": [
+      "Berries are uniform in size and color for their developmental stage.",
+      "Fruit clusters are well-formed, without shriveled, mummified, or rotted berries.",
+      "Berry skins are smooth, intact, and free from cracks or spots."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Exhibits vigorous, upright growth.",
+      "Maintains a well-distributed and appropriately dense canopy."
+    ],
+    "signs_microscopic_or_visible": [
+      "No visible fungal mycelium, spores, pycnidia, or bacterial ooze.",
+      "Absence of significant insect populations or feeding damage."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "powdery mildew",
+      "condition_id": "grape.fungal.powdery_mildew",
+      "key_differences": [
+        "Healthy leaves have a clean, uniform surface, while early powdery mildew shows faint, whitish-gray patches that look like dust.",
+        "The underside of a healthy leaf is clean, whereas powdery mildew can also appear on the underside.",
+        "Healthy plant parts are not distorted, while severe powdery mildew can cause stunted and twisted shoots and leaves."
+      ]
+    },
+    {
+      "condition_name": "downy mildew",
+      "condition_id": "grape.oomycete.downy_mildew",
+      "key_differences": [
+        "Healthy leaves are uniformly green, whereas downy mildew begins as pale yellow, oily-looking spots on the upper leaf surface.",
+        "The underside of a healthy leaf is clean, unlike downy mildew which produces a distinct white, cottony fungal growth on the underside, especially in humid conditions.",
+        "Healthy leaves remain flat and turgid, while downy mildew lesions can become sunken, brown, and necrotic over time."
+      ]
+    },
+    {
+      "condition_name": "black rot",
+      "condition_id": "grape.fungal.black_rot",
+      "key_differences": [
+        "Healthy leaves are free of lesions, while black rot causes circular, tan-to-brown lesions with a distinct dark border.",
+        "Within black rot lesions, tiny black specks (pycnidia) are visible, which are completely absent on healthy tissue.",
+        "Healthy fruit is plump and colored appropriately for the cultivar, whereas black rot causes berries to shrivel, harden, and turn black into 'mummies'."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Select disease-resistant cultivars suitable for the growing region.",
+      "Practice proper pruning and canopy management to improve air circulation and sun exposure.",
+      "Ensure proper site selection with well-drained soil.",
+      "Use balanced fertilization to avoid excessive vegetative growth.",
+      "Sanitize pruning tools between plants."
+    ],
+    "biological": [],
+    "chemical": [
+      "Preventative fungicide programs are used in commercial production to maintain health in regions with high disease pressure."
+    ],
+    "notes": "Management for a healthy plant focuses on preventative cultural practices that promote plant vigor and create an environment unfavorable to pathogens."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/grape/isariopsis_leaf_spot.json b/diseases_knowledge_base/grape/isariopsis_leaf_spot.json
new file mode 100644
index 0000000000000000000000000000000000000000..6db9875b86f5c2777353d8847c397378167d59fd
--- /dev/null
+++ b/diseases_knowledge_base/grape/isariopsis_leaf_spot.json
@@ -0,0 +1,138 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "grape.disease_fungal.isariopsis_leaf_spot",
+  "aliases": [
+    "angular leaf spot",
+    "grapevine leaf spot"
+  ],
+  "crop": {
+    "common_name": "grape",
+    "scientific_name": "Vitis spp.",
+    "family": "Vitaceae"
+  },
+  "condition": {
+    "common_name": "isariopsis leaf spot",
+    "scientific_name": "Pseudocercospora vitis",
+    "alt_names": [
+      "Isariopsis vitis"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Capnodiales",
+        "family": "Mycosphaerellaceae",
+        "genus": "Pseudocercospora",
+        "species": "vitis"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "rain-splash",
+      "wind"
+    ],
+    "overwintering": [
+      "infected fallen leaves",
+      "lesions on dormant canes"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high humidity",
+      "frequent rainfall",
+      "poor air circulation in canopy",
+      "warm temperatures"
+    ],
+    "temp_c_day": [
+      20,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 8
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "<5% of leaf area affected on symptomatic leaves.",
+    "moderate": "5-25% of leaf area affected, with some lesions coalescing.",
+    "severe": ">25% of leaf area affected, often leading to premature yellowing and defoliation.",
+    "notes": "Severity is assessed on individual, fully expanded leaves showing symptoms. For whole-plant assessment, consider the percentage of leaves showing symptoms."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial lesions are small, dark brown to black spots on the upper leaf surface.",
+      "Lesions enlarge to become irregular or angular, often bounded by leaf veins.",
+      "Spots are typically dark brown, reddish-brown, or black throughout, lacking a distinct border.",
+      "A faint yellow halo may surround some lesions.",
+      "On the lower leaf surface, lesions appear as a sooty or dusty greyish-black patch.",
+      "In severe cases, lesions may merge (coalesce) to form large necrotic areas.",
+      "Infected leaves may turn yellow (chlorotic) and drop prematurely."
+    ],
+    "stems": [
+      "Elongated, dark brown to black lesions may appear on young shoots and petioles."
+    ],
+    "fruit": [
+      "Fruit infection is rare, but small, superficial dark flecks can occur on berries."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Severe infections can cause significant defoliation, reducing vine vigor."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible sign is the characteristic sooty, dark grey to olive-brown fungal growth (conidiophores and conidia) on the underside of leaf lesions."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "black rot",
+      "condition_id": "grape.disease_fungal.black_rot",
+      "key_differences": [
+        "Black rot lesions are circular with a distinct dark brown border and a tan-to-light-brown center; Isariopsis spots are more uniformly dark and angular.",
+        "Black rot lesions contain tiny, black, pimple-like structures (pycnidia) often arranged in a ring, which are absent in Isariopsis.",
+        "Isariopsis produces a sooty grey-black growth on the lesion underside; black rot does not have this sign on leaf lesions."
+      ]
+    },
+    {
+      "condition_name": "downy mildew",
+      "condition_id": "grape.disease_oomycete.downy_mildew",
+      "key_differences": [
+        "Downy mildew lesions begin as yellow, oily-looking spots on the upper leaf surface, while Isariopsis spots are dark brown/black from the start.",
+        "Downy mildew produces a distinct, fluffy white fungal growth on the lesion underside in humid conditions, contrasting with the dark, sooty growth of Isariopsis.",
+        "While both can be angular, the initial color and the sign on the leaf underside are primary differentiators."
+      ]
+    },
+    {
+      "condition_name": "anthracnose",
+      "condition_id": "grape.disease_fungal.anthracnose",
+      "key_differences": [
+        "Anthracnose lesions are often called 'bird's-eye spots' with a sunken, greyish center and a raised, dark purplish-black border.",
+        "Anthracnose lesions frequently cause a 'shot-hole' effect as the necrotic center falls out; this is uncommon for Isariopsis.",
+        "Anthracnose causes more severe symptoms on shoots and berries, including distinct cankers and sunken spots, compared to the less common stem lesions of Isariopsis."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Improve air circulation via proper pruning, trellising, and leaf removal.",
+      "Practice good sanitation by removing and destroying fallen leaves and debris in the fall.",
+      "Select planting sites with good sun exposure and air drainage to promote rapid drying of foliage."
+    ],
+    "biological": [
+      "Bio-fungicides containing *Bacillus subtilis* or *Trichoderma* species may provide some suppression when applied preventatively."
+    ],
+    "chemical": [
+      "Apply preventative fungicides, especially during periods of warm, wet weather.",
+      "Fungicide classes such as strobilurins (FRAC 11), DMIs (FRAC 3), and broad-spectrum protectants like mancozeb (FRAC M3) are effective.",
+      "Rotate fungicide chemistries to prevent resistance development."
+    ],
+    "notes": "Management is often integrated with programs for other common fungal diseases like black rot and downy mildew."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/grape/pest_damage.json b/diseases_knowledge_base/grape/pest_damage.json
new file mode 100644
index 0000000000000000000000000000000000000000..e0e6402336fcd7d602d1f923942e0ff5cd94c5d5
--- /dev/null
+++ b/diseases_knowledge_base/grape/pest_damage.json
@@ -0,0 +1,150 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "grape.unknown.pest_damage",
+  "aliases": [
+    "Insect damage",
+    "Arthropod feeding injury",
+    "Mite damage"
+  ],
+  "crop": {
+    "common_name": "grape",
+    "scientific_name": "Vitis spp.",
+    "family": "Vitaceae"
+  },
+  "condition": {
+    "common_name": "Pest Damage",
+    "scientific_name": "",
+    "alt_names": [
+      "Insect feeding",
+      "Mite feeding",
+      "Arthropod injury"
+    ],
+    "pathogen": {
+      "type": "insect",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [
+      "Wind",
+      "Infected plant material",
+      "Equipment"
+    ],
+    "dispersal": [
+      "Active flight/crawling of pest",
+      "Wind currents",
+      "Human activity"
+    ],
+    "overwintering": [
+      "In plant debris",
+      "In soil",
+      "On bark or buds as eggs or adults"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Warm, dry weather (favors mites)",
+      "High humidity (favors some insects and slugs)",
+      "Presence of alternative weed hosts",
+      "Lack of natural predators",
+      "Monoculture plantings"
+    ],
+    "temp_c_day": [
+      20,
+      32
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "< 5% of leaf surface showing feeding damage, stippling, or webbing.",
+    "moderate": "5-25% of leaf surface affected; some leaves may be curled or distorted.",
+    "severe": "> 25% of leaf surface affected; significant defoliation, webbing, or gall formation may be present.",
+    "notes": "Severity is estimated based on the total visible leaf area affected by symptoms like chewing, stippling, mining, or webbing across the plant or image frame."
+  },
+  "symptoms": {
+    "leaves": [
+      "Irregularly shaped holes or chewed margins on leaf blades.",
+      "Fine, pale yellow or white stippling on the upper leaf surface.",
+      "Silvery or bronzed appearance on leaves.",
+      "Winding, discolored trails or tunnels (mines) within the leaf tissue.",
+      "Leaves are curled, puckered, or distorted.",
+      "Presence of fine silk webbing, especially on the underside of leaves.",
+      "Small, abnormal growths or galls on leaf surfaces or petioles."
+    ],
+    "stems": [
+      "Girdling, chewing marks, or small, raised bumps (scale insects) on shoots."
+    ],
+    "fruit": [
+      "Small holes, scars, or tunneling into berries.",
+      "Sticky honeydew or sooty mold on berry clusters."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Stunted growth or reduced vigor in cases of heavy infestation."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible insects, larvae, or eggs on leaves or stems.",
+      "Frass (insect excrement) present on leaves or in webbing.",
+      "Cast skins from molting insects."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Anthracnose",
+      "condition_id": "grape.fungal.anthracnose",
+      "key_differences": [
+        "Anthracnose creates distinct, circular lesions with gray centers and raised, dark borders, which may drop out to form a 'shot-hole'.",
+        "Pest chewing creates holes directly without the preceding lesion development and distinct border.",
+        "Anthracnose also causes sunken, dark-bordered cankers on shoots, a symptom not typical of pest feeding."
+      ]
+    },
+    {
+      "condition_name": "Black Rot",
+      "condition_id": "grape.fungal.black_rot",
+      "key_differences": [
+        "Black rot leaf spots are circular, tan-to-brown, and contain tiny black dots (pycnidia) within the lesion.",
+        "Pest damage appears as irregular holes, stippling, or skeletonization, not well-defined lesions with pycnidia.",
+        "On fruit, black rot causes berries to shrivel into hard, black mummies, which is distinct from insect boring or scarring."
+      ]
+    },
+    {
+      "condition_name": "Downy Mildew",
+      "condition_id": "grape.fungal.downy_mildew",
+      "key_differences": [
+        "Downy mildew causes yellowish, oily-looking patches on the upper leaf surface, not the fine, discrete dots of stippling from mites or leafhoppers.",
+        "A key sign of downy mildew is a white, fuzzy growth on the underside of the oily spots, which is absent in pest damage.",
+        "Downy mildew spots are limited by leaf veins, creating an angular appearance, whereas pest stippling is often more randomly distributed."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Monitor plants regularly for early detection of pests and damage.",
+      "Remove and destroy heavily infested plant parts.",
+      "Promote air circulation through proper pruning and canopy management.",
+      "Manage weeds in and around the vineyard that can serve as alternative hosts."
+    ],
+    "biological": [
+      "Encourage natural predators like ladybugs, lacewings, and predatory mites.",
+      "Use microbial insecticides like Bacillus thuringiensis (Bt) for caterpillars or Beauveria bassiana for other insects."
+    ],
+    "chemical": [
+      "Apply targeted insecticides or miticides only when necessary and based on proper pest identification.",
+      "Use horticultural oils or insecticidal soaps for soft-bodied insects like aphids and mites.",
+      "Consider timing applications to target vulnerable life stages of the pest."
+    ],
+    "notes": "Proper identification of the specific pest is crucial for selecting the most effective and least harmful management strategy. Integrated Pest Management (IPM) is highly recommended."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/grape/powdery_mildew.json b/diseases_knowledge_base/grape/powdery_mildew.json
new file mode 100644
index 0000000000000000000000000000000000000000..0ff95b7ac673bcc290e4942faed0aaf6b1e93c87
--- /dev/null
+++ b/diseases_knowledge_base/grape/powdery_mildew.json
@@ -0,0 +1,135 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "grape.disease_fungal.powdery_mildew",
+  "aliases": [
+    "Oidium",
+    "Grape PM"
+  ],
+  "crop": {
+    "common_name": "grape",
+    "scientific_name": "Vitis spp.",
+    "family": "Vitaceae"
+  },
+  "condition": {
+    "common_name": "powdery mildew",
+    "scientific_name": "Erysiphe necator",
+    "alt_names": [
+      "Oidium tuckeri"
+    ],
+    "pathogen": {
+      "type": "fungus",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Leotiomycetes",
+        "order": "Erysiphales",
+        "family": "Erysiphaceae",
+        "genus": "Erysiphe",
+        "species": "necator"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "Wind-borne conidia"
+    ],
+    "overwintering": [
+      "As chasmothecia (fruiting bodies) on bark or in leaf litter",
+      "As mycelium in dormant buds"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High relative humidity (without free water)",
+      "Shaded, dense canopies with poor air circulation",
+      "Moderate temperatures",
+      "Susceptible cultivars (e.g., Vitis vinifera)"
+    ],
+    "temp_c_day": [
+      20,
+      28
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      70,
+      90
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf or cluster surface area covered with sparse, powdery colonies.",
+    "moderate": "11-40% of surface area covered; colonies are coalescing. Minor leaf distortion or berry scarring may be present.",
+    "severe": ">40% of surface area covered; dense mycelial growth. Causes significant leaf distortion, berry cracking, and potential crop loss.",
+    "notes": "Severity is assessed on the most affected plant part (leaves or fruit clusters). For fruit, severity also includes the extent of scarring (russeting) and cracking. Unlike many fungi, powdery mildew does not require free water (leaf wetness) for infection; in fact, rain can wash off spores."
+  },
+  "symptoms": {
+    "leaves": [
+      "White to grayish, dusty or powdery patches, primarily on the upper leaf surface.",
+      "Powdery patches may also appear on the lower leaf surface, especially in high-humidity conditions.",
+      "Infected leaves can become distorted, curled upwards, or stunted.",
+      "Late in the season, tiny black specks (chasmothecia) may appear within the white mycelial mats.",
+      "Young, expanding leaves are most susceptible to infection."
+    ],
+    "stems": [
+      "White, powdery patches can develop on green shoots, petioles, and tendrils.",
+      "Infected shoots may be stunted, weakened, or distorted."
+    ],
+    "fruit": [
+      "Young berries can be covered in the characteristic white powdery growth.",
+      "As infected berries enlarge, the fungal growth can cause a web-like, rusty scarring (russeting) on the skin.",
+      "Severe berry infections can inhibit development, leading to cracking and exposure to secondary rots.",
+      "Infected berries may fail to ripen properly or may have off-flavors."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Reduced plant vigor and stunted growth in severe, early-season infections."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible white to gray mycelium and conidia forming a powdery layer on plant surfaces.",
+      "The powdery growth can be wiped off with a finger, revealing the plant tissue underneath.",
+      "Presence of tiny, black, spherical chasmothecia (fruiting bodies), often embedded in the mycelial mat on leaves or canes late in the season."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "downy mildew",
+      "condition_id": "grape.disease_fungal.downy_mildew",
+      "key_differences": [
+        "Powdery mildew is typically on the upper leaf surface, while downy mildew's white, fuzzy growth is almost exclusively on the leaf underside.",
+        "Powdery mildew appears as a dry, white 'powder', whereas downy mildew is more 'downy' or 'cottony' in texture.",
+        "Downy mildew produces distinct yellow, oily spots on the upper leaf surface, which is not a symptom of powdery mildew.",
+        "Powdery mildew thrives in high humidity but is inhibited by free water, while downy mildew requires leaf wetness to sporulate."
+      ]
+    },
+    {
+      "condition_name": "pest_damage",
+      "condition_id": "grape.pest_damage.unspecified",
+      "key_differences": [
+        "Damage from leafhoppers causes fine, white or yellow stippling, not a continuous powdery patch.",
+        "The white growth of powdery mildew can be physically wiped off, whereas pest-induced discoloration is integral to the leaf tissue.",
+        "Spider mite damage often includes fine webbing and causes bronzing or yellowing, but lacks the distinct powdery texture of mildew."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Promote good air circulation via proper pruning, trellising, and leaf removal in the fruit zone.",
+      "Plant resistant or less susceptible grape varieties where available.",
+      "Position vineyards to maximize sun exposure and air movement.",
+      "Remove and destroy infected plant material after harvest to reduce overwintering inoculum."
+    ],
+    "biological": [
+      "Application of bio-fungicides containing *Bacillus subtilis* or *Ampelomyces quisqualis*.",
+      "Use of certain microbial-based products that can act as antagonists or competitors."
+    ],
+    "chemical": [
+      "Prophylactic and curative applications of fungicides are the primary control method.",
+      "Commonly used materials include sulfur, horticultural oils, potassium bicarbonate, and synthetic fungicides (e.g., DMIs, QoIs, SDHIs).",
+      "Rotate fungicide chemical classes (FRAC groups) to manage and prevent the development of resistance."
+    ],
+    "notes": "Effective management relies on a preventative spray program starting early in the growing season, as the disease is difficult to control once established."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/grape/yellow_leaf_spot.json b/diseases_knowledge_base/grape/yellow_leaf_spot.json
new file mode 100644
index 0000000000000000000000000000000000000000..3cf230e113ea729851b9ec5e83ddce34e9e7d511
--- /dev/null
+++ b/diseases_knowledge_base/grape/yellow_leaf_spot.json
@@ -0,0 +1,136 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "grape.disease_fungal.yellow_leaf_spot",
+  "aliases": [
+    "grapevine yellow leaf spot",
+    "Pseudocercospora leaf spot"
+  ],
+  "crop": {
+    "common_name": "grape",
+    "scientific_name": "Vitis vinifera",
+    "family": "Vitaceae"
+  },
+  "condition": {
+    "common_name": "yellow leaf spot",
+    "scientific_name": "Pseudocercospora vitis",
+    "alt_names": [],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Capnodiales",
+        "family": "Mycosphaerellaceae",
+        "genus": "Pseudocercospora",
+        "species": "P. vitis"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "wind-driven rain",
+      "splashing water",
+      "wind"
+    ],
+    "overwintering": [
+      "infected fallen leaves",
+      "lesions on canes"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high humidity",
+      "frequent rainfall",
+      "poor air circulation in canopy",
+      "prolonged leaf wetness"
+    ],
+    "temp_c_day": [
+      25,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 8
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area affected with distinct, small lesions.",
+    "moderate": "11-40% of leaf area affected; some lesions may be coalescing.",
+    "severe": ">40% of leaf area affected; extensive lesion coalescence, leaf yellowing, and premature defoliation is likely.",
+    "notes": "Severity is assessed on the most affected leaves. Focus on the percentage of the leaf blade showing symptoms, not the entire plant."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, circular to irregular yellow spots appear on the upper leaf surface.",
+      "Lesions are initially bright yellow, often with a diffuse, halo-like margin.",
+      "As lesions mature, the center turns necrotic, becoming tan, brown, or blackish.",
+      "A tiny, dark dot (stroma) may be visible in the center of the necrotic area.",
+      "On the lower leaf surface, the corresponding area appears water-soaked, then turns olive-green to brownish-black due to sporulation.",
+      "Multiple spots can merge (coalesce) to form larger, irregular blotches.",
+      "Infected leaves may curl, wither, and drop prematurely, especially under severe infection."
+    ],
+    "stems": [
+      "Lesions on young shoots are rare but can appear as elongated, dark spots."
+    ],
+    "fruit": [],
+    "roots": [],
+    "whole_plant": [
+      "Severe infections can lead to significant defoliation, reducing plant vigor and future yield."
+    ],
+    "signs_microscopic_or_visible": [
+      "Fuzzy, olive-green to dark sporulation (conidiophores and conidia) visible on the underside of leaf lesions, often with a hand lens."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "black rot",
+      "condition_id": "grape.disease_fungal.black_rot",
+      "key_differences": [
+        "Black rot lesions have a distinct dark border and a tan center, unlike the initial bright yellow of yellow leaf spot.",
+        "Black rot lesions contain tiny black specks (pycnidia) often arranged in a ring, which are absent in yellow leaf spot.",
+        "Yellow leaf spot has olive-green/brownish sporulation on the leaf underside, while black rot does not produce this sign on leaves."
+      ]
+    },
+    {
+      "condition_name": "downy mildew",
+      "condition_id": "grape.disease_oomycete.downy_mildew",
+      "key_differences": [
+        "Downy mildew lesions ('oil spots') are pale yellow-green and greasy, not the bright, distinct yellow of yellow leaf spot.",
+        "Downy mildew produces a prominent, white, fluffy fungal growth on the leaf underside, contrasting with the more subdued, olive-green to dark growth of yellow leaf spot.",
+        "Downy mildew lesions are often angular and vein-limited, while yellow leaf spot lesions are more circular to irregular."
+      ]
+    },
+    {
+      "condition_name": "isariopsis leaf spot",
+      "condition_id": "grape.disease_fungal.isariopsis_leaf_spot",
+      "key_differences": [
+        "Isariopsis lesions are typically reddish-brown to dark brown from the start, lacking the initial bright yellow phase.",
+        "Isariopsis lesions are often angular and sharply defined by veins.",
+        "The fungal signs for Isariopsis appear as small, dark, bristle-like structures (synnemata) on the leaf underside, different from the more diffuse sporulation of yellow leaf spot."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Improve air circulation through canopy management, leaf pulling, and proper pruning.",
+      "Remove and destroy infected fallen leaves and debris after the growing season to reduce inoculum.",
+      "Use drip irrigation instead of overhead sprinklers to minimize leaf wetness.",
+      "Select less susceptible grape varieties where possible."
+    ],
+    "biological": [
+      "Application of bio-fungicides based on Bacillus subtilis or other microbial antagonists may offer some suppression when used preventatively."
+    ],
+    "chemical": [
+      "Apply registered fungicides preventatively, especially during periods of high risk (warm, wet weather).",
+      "Rotate fungicides with different modes of action (FRAC groups) to prevent resistance development.",
+      "Ensure thorough spray coverage on both upper and lower leaf surfaces."
+    ],
+    "notes": "An integrated pest management (IPM) approach combining cultural practices with timely fungicide applications is most effective for control."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/guava/canker.json b/diseases_knowledge_base/guava/canker.json
new file mode 100644
index 0000000000000000000000000000000000000000..45aaa8e1f37b89b803b22e4e7f1fea219c5aaf47
--- /dev/null
+++ b/diseases_knowledge_base/guava/canker.json
@@ -0,0 +1,147 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "guava.disease_bacterial.canker",
+  "aliases": [
+    "bacterial canker of guava",
+    "guava dieback",
+    "bacterial blight of guava"
+  ],
+  "crop": {
+    "common_name": "guava",
+    "scientific_name": "Psidium guajava",
+    "family": "Myrtaceae"
+  },
+  "condition": {
+    "common_name": "canker",
+    "scientific_name": "Erwinia psidii",
+    "alt_names": [
+      "shoot dieback",
+      "bacterial necrosis"
+    ],
+    "pathogen": {
+      "type": "disease_bacterial",
+      "taxonomy": {
+        "kingdom": "Bacteria",
+        "phylum": "Proteobacteria",
+        "class": "Gammaproteobacteria",
+        "order": "Enterobacterales",
+        "family": "Erwiniaceae",
+        "genus": "Erwinia",
+        "species": "psidii"
+      }
+    }
+  },
+  "issue_type": "disease_bacterial",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "wind-driven rain",
+      "water splash",
+      "contaminated pruning tools",
+      "infected nursery stock"
+    ],
+    "overwintering": [
+      "in infected stems and cankers",
+      "in plant debris on the ground"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "prolonged periods of high humidity",
+      "frequent rainfall",
+      "warm temperatures",
+      "dense canopy with poor air circulation",
+      "wounds from pruning, insects, or mechanical damage"
+    ],
+    "temp_c_day": [
+      25,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 6
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "< 5% of leaf, twig, or fruit surface area affected with lesions. No significant dieback.",
+    "moderate": "5-25% of surface area affected; multiple cankers may be present, with some twig dieback visible.",
+    "severe": "> 25% of surface area affected; extensive cankers causing girdling, significant branch dieback, and severe fruit rot.",
+    "notes": "Severity is assessed based on the percentage of symptomatic tissue on the most affected plant part visible. For whole-plant views, consider the overall proportion of the canopy showing symptoms like dieback."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial small, water-soaked, circular spots.",
+      "Lesions enlarge, turning dark brown to black, often surrounded by a distinct yellow halo.",
+      "Lesion centers may dry, crack, and fall out, creating a 'shot-hole' appearance.",
+      "Infected young leaves can become distorted, twisted, or malformed."
+    ],
+    "stems": [
+      "Formation of elongated, sunken, dark brown or black cankers on twigs and young branches.",
+      "Bark over cankers may crack, split, or peel.",
+      "Girdling of stems by cankers leads to wilting and dieback of the shoot tip and branches above the infection.",
+      "In high humidity, creamy or whitish bacterial ooze may exude from active cankers."
+    ],
+    "fruit": [
+      "Small, circular, water-soaked spots appear on the fruit surface.",
+      "Spots enlarge, becoming sunken, hard, and dark brown to black, often with a raised margin.",
+      "Lesions can crack open, allowing entry for secondary rot organisms."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Wilting and death of affected shoots and branches.",
+      "Reduced plant vigor and poor fruit development."
+    ],
+    "signs_microscopic_or_visible": [
+      "Bacterial ooze from cankers under wet conditions."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "leaf_spot",
+      "condition_id": "guava.disease_fungal.leaf_spot",
+      "key_differences": [
+        "Canker produces sunken, woody cankers on stems and twigs, a symptom absent in most leaf spot diseases.",
+        "Bacterial canker leaf lesions are often initially water-soaked with prominent yellow halos; fungal leaf spots may have a more defined, less water-soaked border and sometimes a grayish center.",
+        "Fruit lesions from canker are characteristically hard and sunken, while fungal spots on fruit may be more superficial or lead to soft rot."
+      ]
+    },
+    {
+      "condition_name": "rust",
+      "condition_id": "guava.disease_fungal.rust",
+      "key_differences": [
+        "Rust appears as raised, powdery pustules that release yellow-orange spores, typically on the leaf underside.",
+        "Canker causes flat or sunken necrotic spots that are not powdery.",
+        "Rust does not form cankers on woody stems; its primary damage is defoliation."
+      ]
+    },
+    {
+      "condition_name": "nutritional_deficiency",
+      "condition_id": "guava.disorder_abiotic.nutritional_deficiency",
+      "key_differences": [
+        "Deficiencies cause generalized, often symmetrical patterns of discoloration (e.g., interveinal chlorosis, marginal yellowing), not discrete necrotic spots.",
+        "Canker lesions are localized areas of dead tissue with distinct borders.",
+        "Nutritional issues do not cause sunken cankers on stems or water-soaked lesions on any plant part."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified disease-free planting material.",
+      "Prune and destroy infected branches and cankers during dry periods to reduce inoculum.",
+      "Improve air circulation within the canopy through selective pruning.",
+      "Avoid overhead irrigation that wets foliage for extended periods.",
+      "Disinfect pruning tools (e.g., with 10% bleach solution) between cuts."
+    ],
+    "biological": [
+      "Formulations containing *Bacillus subtilis* or other beneficial microbes may act as antagonists."
+    ],
+    "chemical": [
+      "Preventative applications of copper-based bactericides (e.g., copper hydroxide, copper oxychloride) prior to and during rainy seasons.",
+      "Consult local extension services for recommended and legally registered products and spray schedules."
+    ],
+    "notes": "An integrated approach combining sanitation (pruning) with preventative chemical sprays is most effective for managing guava canker."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/guava/curling.json b/diseases_knowledge_base/guava/curling.json
new file mode 100644
index 0000000000000000000000000000000000000000..a1181a5a509aeec50e47a5fd2fc3ebaf145d2267
--- /dev/null
+++ b/diseases_knowledge_base/guava/curling.json
@@ -0,0 +1,146 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "guava.unknown.curling",
+  "aliases": [
+    "Guava leaf curl",
+    "Leaf distortion",
+    "Crinkling"
+  ],
+  "crop": {
+    "common_name": "Guava",
+    "scientific_name": "Psidium guajava",
+    "family": "Myrtaceae"
+  },
+  "condition": {
+    "common_name": "Leaf Curling",
+    "scientific_name": "",
+    "alt_names": [
+      "Leaf distortion",
+      "Crinkling"
+    ],
+    "pathogen": {
+      "type": "unknown",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [
+      "Aphids",
+      "Thrips",
+      "Whiteflies"
+    ],
+    "dispersal": [
+      "Wind",
+      "Insect movement",
+      "Contaminated tools"
+    ],
+    "overwintering": [
+      "In plant debris",
+      "On alternate hosts",
+      "As eggs on bark"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Warm, dry weather which favors sucking pest populations",
+      "Presence of vector populations (e.g., aphids, thrips)",
+      "New, tender growth flushes are highly susceptible",
+      "Poor air circulation around plants"
+    ],
+    "temp_c_day": [
+      20,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "A few isolated leaves or a single shoot tip shows curling.",
+    "moderate": "Multiple shoots show curling, with up to 30% of the plant's new growth affected.",
+    "severe": "Widespread curling across most new growth, leading to stunted shoots and reduced plant vigor.",
+    "notes": "Severity is assessed by the proportion of young shoots and leaves exhibiting curling and distortion symptoms. The presence of sooty mold can indicate a longer-term, more severe issue."
+  },
+  "symptoms": {
+    "leaves": [
+      "Leaves curl downwards or upwards along the margins.",
+      "Affected leaves appear twisted, crinkled, or generally distorted.",
+      "Young, tender leaves on new shoots are the most commonly affected.",
+      "Leaf surface may appear bumpy or blistered.",
+      "Chlorosis (yellowing) may accompany the curling, especially on leaf edges.",
+      "In cases caused by sucking pests, a sticky honeydew may be present on leaf surfaces.",
+      "Black, sooty mold may grow on the honeydew, coating the leaves."
+    ],
+    "stems": [
+      "Shoot tips and young stems may be stunted or malformed.",
+      "Internodes on affected shoots may be shortened, giving a bushy or 'rosette' appearance."
+    ],
+    "fruit": [
+      "Severe infestations during flowering may lead to poor fruit set.",
+      "Fruit development can be hindered if the plant's vigor is significantly reduced."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Overall plant growth is stunted and lacks vigor in severe cases."
+    ],
+    "signs_microscopic_or_visible": [
+      "Small insects (e.g., green or black aphids, tiny thrips) may be visible on the underside of curled leaves.",
+      "Cast skins from molting insects might be visible."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Nutritional Deficiency",
+      "condition_id": "guava.abiotic.nutritional_deficiency",
+      "key_differences": [
+        "Deficiencies often cause distinct, symmetrical chlorosis patterns (e.g., interveinal), whereas curling may be more random.",
+        "Curling from deficiency (e.g., calcium) is often rigid and brittle, while pest-induced curling can be more pliable.",
+        "Pests, honeydew, or sooty mold are absent in cases of nutritional deficiency."
+      ]
+    },
+    {
+      "condition_name": "Powdery Mildew",
+      "condition_id": "guava.fungal.powdery_mildew",
+      "key_differences": [
+        "Powdery mildew is defined by a characteristic white, powdery fungal growth on leaf surfaces, which is the primary sign.",
+        "While severe mildew can cause some leaf distortion, it does not typically cause tight curling like sucking pests do.",
+        "The white fungal patches of powdery mildew can be wiped off, unlike symptoms of curling."
+      ]
+    },
+    {
+      "condition_name": "Healthy",
+      "condition_id": "guava.healthy.none",
+      "key_differences": [
+        "Healthy leaves are flat, fully expanded, and have a uniform green color without distortion.",
+        "Healthy leaves lack any form of curling, crinkling, or discoloration.",
+        "Healthy shoots exhibit normal elongation with typical internode spacing."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Prune and destroy affected plant parts to remove pest populations.",
+      "Monitor plants regularly, especially new growth, for early signs of pests.",
+      "Avoid excessive nitrogen fertilization which promotes lush growth that is attractive to sucking pests.",
+      "Use a strong jet of water to dislodge pests like aphids from leaves."
+    ],
+    "biological": [
+      "Introduce or conserve natural enemies such as ladybugs, lacewings, and parasitic wasps."
+    ],
+    "chemical": [
+      "Apply insecticidal soaps or horticultural oils, ensuring thorough coverage of the undersides of leaves.",
+      "For severe infestations, consider using systemic insecticides, following all label instructions and pre-harvest intervals."
+    ],
+    "notes": "The primary cause of leaf curling in guava is often sucking pests. Accurate identification of the pest is key to selecting the most effective management strategy."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/guava/healthy.json b/diseases_knowledge_base/guava/healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..f84217ad113166bb6bfeb09e59eec7cdca182964
--- /dev/null
+++ b/diseases_knowledge_base/guava/healthy.json
@@ -0,0 +1,136 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "guava.healthy.healthy",
+  "aliases": [
+    "Normal",
+    "Asymptomatic",
+    "Undiseased"
+  ],
+  "crop": {
+    "common_name": "Guava",
+    "scientific_name": "Psidium guajava",
+    "family": "Myrtaceae"
+  },
+  "condition": {
+    "common_name": "Healthy",
+    "scientific_name": null,
+    "alt_names": [
+      "Normal",
+      "Asymptomatic"
+    ],
+    "pathogen": {
+      "type": "abiotic",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "healthy",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Optimal sunlight exposure (6-8 hours/day)",
+      "Well-drained soil with appropriate pH (5.5-7.0)",
+      "Adequate plant spacing promoting good air circulation",
+      "Balanced nutrition and consistent moisture"
+    ],
+    "temp_c_day": [
+      23,
+      28
+    ],
+    "temp_c_night": [
+      15,
+      20
+    ],
+    "relative_humidity_pct": [
+      60,
+      80
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "N/A",
+    "moderate": "N/A",
+    "severe": "N/A",
+    "notes": "For a healthy plant, severity is not applicable. The plant exhibits 0% symptoms of disease or stress. Any deviation from the 'healthy' description would be classified under a specific condition."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uniformly green color, ranging from light green on new growth to dark green on mature leaves.",
+      "Smooth, often glossy or waxy surface texture.",
+      "Leaves are fully expanded, turgid, and appropriately sized.",
+      "Complete absence of spots, lesions, pustules, or powdery growth.",
+      "Leaf margins are entire and without necrosis, yellowing, or curling.",
+      "Veins are a similar or slightly lighter green than the leaf blade without discoloration."
+    ],
+    "stems": [
+      "Stems and branches are firm, strong, and support the plant structure.",
+      "Bark on young shoots is typically smooth and greenish-brown, while older stems may have peeling, mottled bark.",
+      "Absence of cankers, galls, cracks, or unusual exudates."
+    ],
+    "fruit": [
+      "Fruit skin is smooth and evenly colored for its stage of development (e.g., uniform green when immature, turning yellow or pink when ripe).",
+      "Absence of blemishes, sunken lesions, cracks, or signs of rot.",
+      "Fruit is well-formed and firm to the touch."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Exhibits vigorous, upright growth with a dense, full canopy.",
+      "Produces new flushes of growth, flowers, and fruit according to the season."
+    ],
+    "signs_microscopic_or_visible": [
+      "Absence of any visible signs of pathogens, such as fungal mycelium, spores, pustules, or bacterial ooze."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Nutritional Deficiency",
+      "condition_id": "guava.abiotic.nutritional_deficiency",
+      "key_differences": [
+        "Healthy leaves have uniform green color, whereas deficient leaves show patterned chlorosis (yellowing), such as interveinal, marginal, or on new/old growth.",
+        "Healthy leaves are flat and well-formed, while certain deficiencies (e.g., calcium, boron) can cause distorted, curled, or stunted leaf growth.",
+        "Healthy plant growth is vigorous; deficiencies often result in reduced vigor and smaller leaves."
+      ]
+    },
+    {
+      "condition_name": "Powdery Mildew",
+      "condition_id": "guava.fungal.powdery_mildew",
+      "key_differences": [
+        "Healthy leaves have a clean, often glossy surface, while infected leaves are coated with a distinct white to grayish, powdery fungal growth.",
+        "The texture of a healthy leaf is smooth; powdery mildew creates a dusty or felt-like coating that can be rubbed off.",
+        "Underlying tissue of a healthy leaf is green, whereas areas covered by mildew may eventually turn yellow or necrotic."
+      ]
+    },
+    {
+      "condition_name": "Rust",
+      "condition_id": "guava.fungal.rust",
+      "key_differences": [
+        "Healthy leaves have a smooth, unbroken surface, while rust-infected leaves feature small, raised pustules.",
+        "Rust pustules are typically bright orange, yellow, or reddish-brown, colors which are absent on healthy leaves.",
+        "The underside of a healthy leaf is clean, whereas rust pustules are often more numerous and prominent on the leaf underside."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Maintain a balanced fertilization program based on soil and tissue analysis.",
+      "Ensure proper irrigation, avoiding both drought stress and waterlogged conditions.",
+      "Prune annually to remove dead or crossing branches and improve air circulation within the canopy.",
+      "Select planting sites with full sun exposure and well-drained soil."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "Management for a healthy plant involves proactive cultural practices to provide optimal growing conditions and minimize plant stress, which is the best defense against pests and diseases."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/guava/leaf_spot.json b/diseases_knowledge_base/guava/leaf_spot.json
new file mode 100644
index 0000000000000000000000000000000000000000..207feaf68298bb2a8b61cf1d6baaf092ba24aa38
--- /dev/null
+++ b/diseases_knowledge_base/guava/leaf_spot.json
@@ -0,0 +1,148 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "guava.disease_fungal.leaf_spot",
+  "aliases": [
+    "Cercospora leaf spot of guava",
+    "Pestalotiopsis leaf spot",
+    "guava scab"
+  ],
+  "crop": {
+    "common_name": "guava",
+    "scientific_name": "Psidium guajava",
+    "family": "Myrtaceae"
+  },
+  "condition": {
+    "common_name": "leaf spot",
+    "scientific_name": "Cercospora psidii, Pestalotiopsis spp., Pseudocercospora psidii",
+    "alt_names": [
+      "Fungal leaf spot"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Capnodiales",
+        "family": "Mycosphaerellaceae",
+        "genus": "Cercospora",
+        "species": "psidii"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [
+      "wind",
+      "rain splash",
+      "irrigation water",
+      "contaminated tools"
+    ],
+    "dispersal": [
+      "conidia (asexual spores)"
+    ],
+    "overwintering": [
+      "infected plant debris on the ground",
+      "dormant mycelium in lesions on living leaves and twigs"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high humidity",
+      "prolonged leaf wetness",
+      "warm temperatures",
+      "dense canopy with poor air circulation",
+      "frequent rainfall or overhead irrigation"
+    ],
+    "temp_c_day": [
+      24,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 8
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "< 5% of leaf area affected with spots.",
+    "moderate": "5-25% of leaf area affected, some leaf yellowing (chlorosis) may be present.",
+    "severe": "> 25% of leaf area affected, significant chlorosis, coalescence of spots, and premature leaf drop (defoliation).",
+    "notes": "Severity is estimated as the average percentage of symptomatic tissue across the visible leaves. High severity can lead to a 'shot-hole' effect where lesion centers dry and fall out."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, circular to irregular spots, initially appearing water-soaked or yellowish.",
+      "Spots enlarge over time, typically 3-10 mm in diameter.",
+      "Mature spots develop a distinct grayish-white or tan center.",
+      "A dark brown, reddish, or purplish border surrounds the lighter center.",
+      "Multiple spots may merge (coalesce) to form large, irregular necrotic blotches.",
+      "In some cases, the necrotic center of the spot falls out, creating a 'shot-hole' appearance.",
+      "A yellow halo may form around the lesions.",
+      "Severe infections lead to widespread yellowing and premature leaf fall."
+    ],
+    "stems": [
+      "Small, slightly sunken, dark lesions may appear on young, green stems and petioles."
+    ],
+    "fruit": [
+      "Small, circular, sunken, dark brown to black spots can develop on the fruit surface, reducing marketability.",
+      "Fruit lesions may develop cracks, allowing secondary infections."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Reduced plant vigor due to defoliation.",
+      "Thinning of the canopy in cases of chronic, severe infection."
+    ],
+    "signs_microscopic_or_visible": [
+      "Under high humidity, fuzzy sporulation may be visible in the center of lesions.",
+      "Under magnification, tiny black dots (fruiting bodies like acervuli or pycnidia) can be seen within the lesions."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "rust",
+      "condition_id": "guava.disease_fungal.rust",
+      "key_differences": [
+        "Rust produces distinctly raised, powdery pustules, typically orange to reddish-brown, that rupture to release spores.",
+        "Leaf spot lesions are flat or slightly sunken, not raised or powdery.",
+        "Rust pustules lack the characteristic pale center and dark border seen in many fungal leaf spots."
+      ]
+    },
+    {
+      "condition_name": "nutritional deficiency",
+      "condition_id": "guava.nutritional_deficiency",
+      "key_differences": [
+        "Deficiency symptoms like yellowing (chlorosis) are often symmetrical and follow leaf vein patterns (e.g., interveinal chlorosis).",
+        "Leaf spots are discrete, randomly scattered, and have defined borders, unlike the diffuse patterns of deficiencies.",
+        "Nutritional issues typically affect new or old growth uniformly, whereas leaf spots appear based on infection events."
+      ]
+    },
+    {
+      "condition_name": "canker",
+      "condition_id": "guava.disease_fungal.canker",
+      "key_differences": [
+        "Cankers are primarily sunken, dead, or cracked areas on woody stems and branches, not discrete spots on leaf blades.",
+        "While some canker pathogens can cause leaf symptoms, the primary damage is on woody tissue, often leading to branch dieback.",
+        "Leaf spots are numerous and scattered across the leaf surface, whereas canker-related leaf yellowing might be localized to a single affected branch."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Prune to improve air circulation and sunlight penetration within the canopy.",
+      "Remove and destroy fallen leaves and infected plant debris to reduce inoculum.",
+      "Avoid overhead irrigation to minimize leaf wetness duration.",
+      "Maintain proper plant nutrition to improve vigor and disease tolerance."
+    ],
+    "biological": [
+      "Application of bio-fungicides based on *Bacillus subtilis* or *Trichoderma* species may help suppress the pathogen."
+    ],
+    "chemical": [
+      "Application of protective or systemic fungicides, such as copper-based compounds, mancozeb, or strobilurins.",
+      "Fungicide application should be timed before or during periods of high risk (warm, wet weather)."
+    ],
+    "notes": "An integrated pest management (IPM) approach combining cultural, biological, and chemical methods is most effective. Rotate fungicide classes to prevent resistance."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/guava/nutritional_deficiency.json b/diseases_knowledge_base/guava/nutritional_deficiency.json
new file mode 100644
index 0000000000000000000000000000000000000000..249a21cefef3b3556a6623ab54236eb4b0b66887
--- /dev/null
+++ b/diseases_knowledge_base/guava/nutritional_deficiency.json
@@ -0,0 +1,125 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "guava.nutrient_deficiency.nutritional_deficiency",
+  "aliases": [
+    "guava chlorosis",
+    "guava mineral deficiency",
+    "guava nutrient imbalance"
+  ],
+  "crop": {
+    "common_name": "guava",
+    "scientific_name": "Psidium guajava",
+    "family": "Myrtaceae"
+  },
+  "condition": {
+    "common_name": "Nutritional Deficiency",
+    "scientific_name": null,
+    "alt_names": [
+      "Mineral deficiency",
+      "Nutrient imbalance"
+    ],
+    "pathogen": {
+      "type": "abiotic",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "nutrient_deficiency",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Poor soil fertility or sandy soils prone to leaching",
+      "Improper soil pH (too acidic or alkaline), which locks up nutrients",
+      "Waterlogged soil or drought conditions impairing root function",
+      "Competition for nutrients from weeds",
+      "Heavy rainfall or over-irrigation leading to nutrient leaching"
+    ],
+    "temp_c_day": [],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area on a few leaves shows discoloration (e.g., chlorosis). Plant vigor is largely unaffected.",
+    "moderate": "11-40% of leaf area on multiple leaves is affected. Some marginal necrosis or stunting may be visible.",
+    "severe": ">40% of leaf area is affected across the plant canopy. Significant necrosis, premature leaf drop, and severe stunting are evident.",
+    "notes": "Severity is assessed by the percentage of a symptomatic leaf's surface area showing chlorosis or necrosis, and the extent of symptoms across the whole plant."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uniform pale green or yellowing (chlorosis) of older, lower leaves, indicating mobile nutrient deficiency (e.g., Nitrogen).",
+      "Interveinal chlorosis (yellowing between green veins) on younger, upper leaves, indicating immobile nutrient deficiency (e.g., Iron, Zinc).",
+      "Yellowing, browning, or scorching along the margins and tips of older leaves (e.g., Potassium deficiency).",
+      "Leaves may develop a purplish or reddish cast, especially on older leaves under cool conditions (e.g., Phosphorus deficiency).",
+      "A distinct 'V' shaped yellowing pattern starting from the tip of older leaves (e.g., Magnesium deficiency).",
+      "New leaves are abnormally small (little leaf) and internodes are short, giving a rosetted appearance (e.g., Zinc deficiency).",
+      "In severe cases, affected leaf areas become brown, dry, and dead (necrotic).",
+      "Premature dropping of affected leaves."
+    ],
+    "stems": [
+      "Stems may be thin, weak, and spindly.",
+      "Reduced internode length, leading to a compacted or 'rosetted' growth habit."
+    ],
+    "fruit": [
+      "Reduced fruit set, size, and overall yield.",
+      "Poor fruit quality, including color, firmness, and flavor.",
+      "Fruit may exhibit deformities or cracking."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Overall stunted growth and reduced plant vigor."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Leaf Spot",
+      "condition_id": "guava.fungal.leaf_spot",
+      "key_differences": [
+        "Leaf spots are discrete, often circular lesions with defined borders, whereas deficiency symptoms are diffuse patterns like interveinal or marginal chlorosis.",
+        "Leaf spots may have a necrotic tan center with a dark or colored halo, a feature absent in nutritional deficiencies.",
+        "Deficiency symptoms often appear symmetrically on the leaf blade, while fungal spots are typically distributed randomly.",
+        "Fungal spots may contain tiny black dots (pycnidia or acervuli) in the lesion center, which are fungal signs not present in deficiencies."
+      ]
+    },
+    {
+      "condition_name": "Rust",
+      "condition_id": "guava.fungal.rust",
+      "key_differences": [
+        "Rust appears as raised, powdery pustules (uredinia) that are orange to reddish-brown, not flat areas of yellowing (chlorosis).",
+        "Rubbing a rust pustule will leave a colored, powder-like residue on a surface, which does not happen with deficiency symptoms.",
+        "Rust lesions are distinct pustules, often on the underside of the leaf, contrasting with the broad, patterned discoloration of deficiencies."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Conduct regular soil and leaf tissue analysis to accurately diagnose specific nutrient deficiencies.",
+      "Maintain soil pH in the optimal range for guava (5.5-7.0) to maximize nutrient availability.",
+      "Apply balanced fertilizers based on soil test recommendations.",
+      "Incorporate compost or other organic matter to improve soil health and nutrient retention.",
+      "Ensure proper irrigation management to avoid waterlogging and drought stress, both of which hinder nutrient uptake."
+    ],
+    "biological": [
+      "Promote healthy soil microbial populations through organic matter amendment, which can aid in nutrient cycling."
+    ],
+    "chemical": [
+      "Apply specific fertilizers to correct identified deficiencies (e.g., urea for nitrogen, potassium sulfate for potassium).",
+      "Use foliar sprays of chelated micronutrients (e.g., iron, zinc, manganese) for rapid but temporary correction of deficiencies in new growth.",
+      "Adjust soil pH using lime (to raise pH) or sulfur (to lower pH) as needed based on soil tests."
+    ],
+    "notes": "Accurate diagnosis through laboratory testing is critical before applying chemical treatments to avoid creating further nutrient imbalances."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/guava/powdery_mildew.json b/diseases_knowledge_base/guava/powdery_mildew.json
new file mode 100644
index 0000000000000000000000000000000000000000..64006f88a4b80a4b73d2d4c189898fd4193445fd
--- /dev/null
+++ b/diseases_knowledge_base/guava/powdery_mildew.json
@@ -0,0 +1,131 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "guava.disease_fungal.powdery_mildew",
+  "aliases": [
+    "guava powdery mildew"
+  ],
+  "crop": {
+    "common_name": "guava",
+    "scientific_name": "Psidium guajava",
+    "family": "Myrtaceae"
+  },
+  "condition": {
+    "common_name": "powdery mildew",
+    "scientific_name": "Oidium psidii",
+    "alt_names": [
+      "white mildew"
+    ],
+    "pathogen": {
+      "type": "fungus",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Leotiomycetes",
+        "order": "Erysiphales",
+        "family": "Erysiphaceae",
+        "genus": "Oidium",
+        "species": "psidii"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "windborne conidia"
+    ],
+    "overwintering": [
+      "mycelium on infected plant debris",
+      "dormant buds"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high relative humidity",
+      "moderate temperatures",
+      "poor air circulation",
+      "shady conditions"
+    ],
+    "temp_c_day": [
+      20,
+      28
+    ],
+    "temp_c_night": [
+      15,
+      22
+    ],
+    "relative_humidity_pct": [
+      80,
+      95
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "< 10% of leaf surface covered with white mycelial growth.",
+    "moderate": "10-40% of leaf surface covered; some leaf distortion or yellowing may be present.",
+    "severe": "> 40% of leaf surface covered; significant leaf yellowing, curling, and premature defoliation.",
+    "notes": "Severity is assessed on the most affected leaves. Focus on the upper leaf surface where symptoms are most prominent. The white growth is the key indicator."
+  },
+  "symptoms": {
+    "leaves": [
+      "White to grayish, powdery patches appear on the upper leaf surface.",
+      "Powdery growth can also develop on the lower leaf surface.",
+      "Infected young leaves may become twisted, curled, or distorted.",
+      "Lesions enlarge and merge, potentially covering the entire leaf surface.",
+      "Underlying leaf tissue may turn yellow (chlorotic) or, less commonly, brown.",
+      "Severe infections can lead to premature leaf drop."
+    ],
+    "stems": [
+      "White, dusty growth can colonize young, green shoots and petioles."
+    ],
+    "fruit": [
+      "White powdery patches may develop on the surface of young fruit.",
+      "Infected fruit skin can become discolored, russeted, or cracked.",
+      "Severe infection may cause fruit malformation or premature drop."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Reduced plant vigor and stunted growth in severe, systemic infections."
+    ],
+    "signs_microscopic_or_visible": [
+      "The white, powdery growth is the fungal mycelium and its spores (conidia), which can be easily rubbed off the plant surface."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "nutritional deficiency",
+      "condition_id": "guava.abiotic.nutritional_deficiency",
+      "key_differences": [
+        "Deficiencies cause discoloration (e.g., yellowing) integral to the leaf tissue, lacking any superficial, rub-off growth.",
+        "Powdery mildew appears as distinct white/gray patches on the leaf surface, which is not a symptom of nutrient issues.",
+        "Nutrient deficiency patterns are often systematic (e.g., interveinal chlorosis, affecting new vs. old leaves), while mildew patches are more randomly distributed."
+      ]
+    },
+    {
+      "condition_name": "rust",
+      "condition_id": "guava.disease_fungal.rust",
+      "key_differences": [
+        "Rust produces raised pustules that are typically orange, reddish-brown, or yellow, not white or gray.",
+        "When rubbed, rust pustules release a colored powder (spores), whereas powdery mildew releases a white powder.",
+        "Rust symptoms often start as small, colored spots on the underside of leaves, while powdery mildew is frequently more prominent on the upper surface as a diffuse patch."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Prune to improve air circulation and sunlight penetration within the canopy.",
+      "Remove and destroy heavily infected leaves, shoots, and fruit to reduce inoculum.",
+      "Avoid overhead irrigation, which can increase humidity.",
+      "Ensure proper plant spacing to promote airflow."
+    ],
+    "biological": [
+      "Application of bio-fungicides containing beneficial microbes like *Bacillus subtilis* or *Ampelomyces quisqualis*."
+    ],
+    "chemical": [
+      "Application of horticultural oils or neem oil in early stages.",
+      "Use of fungicides such as sulfur, potassium bicarbonate, or synthetic fungicides (e.g., myclobutanil, propiconazole)."
+    ],
+    "notes": "Start fungicide applications at the first sign of disease. Rotate fungicide classes to manage resistance. Always follow label instructions for application rates and timing."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/guava/rust.json b/diseases_knowledge_base/guava/rust.json
new file mode 100644
index 0000000000000000000000000000000000000000..3a298a0559fe17038459536cff11e673988139cb
--- /dev/null
+++ b/diseases_knowledge_base/guava/rust.json
@@ -0,0 +1,136 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "guava.disease_fungal.rust",
+  "aliases": [
+    "myrtle rust",
+    "eucalyptus rust"
+  ],
+  "crop": {
+    "common_name": "guava",
+    "scientific_name": "Psidium guajava",
+    "family": "Myrtaceae"
+  },
+  "condition": {
+    "common_name": "rust",
+    "scientific_name": "Austropuccinia psidii",
+    "alt_names": [
+      "Puccinia psidii"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Basidiomycota",
+        "class": "Pucciniomycetes",
+        "order": "Pucciniales",
+        "family": "Sphaerophragmiaceae",
+        "genus": "Austropuccinia",
+        "species": "psidii"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "wind-borne spores",
+      "water splash",
+      "contaminated tools",
+      "movement of infected plant material"
+    ],
+    "overwintering": [
+      "on infected leaves and stems in mild climates",
+      "on alternate hosts within the Myrtaceae family"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high humidity",
+      "prolonged leaf wetness",
+      "presence of young, susceptible tissue (new growth)",
+      "poor air circulation"
+    ],
+    "temp_c_day": [
+      15,
+      25
+    ],
+    "temp_c_night": [
+      10,
+      20
+    ],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 6
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area affected with visible pustules. Little to no leaf distortion.",
+    "moderate": "11-30% of leaf area affected. Some leaf curling, distortion, or minor premature leaf drop may be present.",
+    "severe": ">30% of leaf area affected. Significant leaf distortion, shoot dieback, and/or widespread defoliation.",
+    "notes": "Severity is measured as the percentage of total leaf surface area on the plant (or in the image frame) covered by active, sporulating pustules. Also consider impact on new growth and fruit."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial small, chlorotic (yellow) flecks on upper and lower leaf surfaces.",
+      "Development of bright yellow to orange, powdery pustules (uredinia), especially on the underside of young leaves.",
+      "Pustules may be surrounded by a purple or dark red halo on some hosts.",
+      "Infected leaves become twisted, distorted, and may fall prematurely.",
+      "Older lesions may turn dark brown or black as spores are released and tissue dies."
+    ],
+    "stems": [
+      "Pustules can form on young, succulent stems and shoots.",
+      "Severe infection can lead to stem distortion, stunting, or dieback."
+    ],
+    "fruit": [
+      "Pustules develop on young, developing fruit.",
+      "Infected fruit may become malformed, cracked, or stop developing."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Stunted growth of new shoots.",
+      "Severe infections can lead to significant defoliation and reduced plant vigor."
+    ],
+    "signs_microscopic_or_visible": [
+      "Presence of bright yellow-orange powdery spore masses (urediniospores) that can be wiped off the leaf surface."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "leaf_spot",
+      "condition_id": "guava.disease_fungal.leaf_spot",
+      "key_differences": [
+        "Leaf spots are typically necrotic (tan, brown, or black), not bright yellow/orange.",
+        "Leaf spots are flat or slightly sunken, whereas rust forms raised, powdery pustules.",
+        "Leaf spots often have a distinct, darker border; rust pustules are more diffuse initially.",
+        "Leaf spots do not produce a powder that can be wiped off."
+      ]
+    },
+    {
+      "condition_name": "nutritional_deficiency",
+      "condition_id": "guava.nutrient_deficiency.iron",
+      "key_differences": [
+        "Nutrient deficiency causes chlorosis (yellowing) in patterns (e.g., interveinal), not in discrete, circular spots.",
+        "Deficiency symptoms do not include raised, powdery pustules.",
+        "Deficiency yellowing affects the leaf tissue itself, while rust is a fungal growth on the surface."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Prune to improve air circulation within the canopy.",
+      "Remove and destroy infected plant parts to reduce inoculum.",
+      "Avoid overhead irrigation to minimize periods of leaf wetness.",
+      "Plant resistant or less susceptible cultivars if available."
+    ],
+    "biological": [
+      "Mycoparasites like Sphaerellopsis filum are natural enemies but commercial options are limited."
+    ],
+    "chemical": [
+      "Application of protective or systemic fungicides (e.g., copper-based, strobilurins, triazoles).",
+      "Follow label instructions and rotate fungicide classes to prevent resistance."
+    ],
+    "notes": "Management is most effective when started early, before the disease becomes widespread. Focus on protecting new, susceptible growth during favorable environmental conditions."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/hibiscus/healthy.json b/diseases_knowledge_base/hibiscus/healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..abe165aefe7cbc267c41cef9ced41d05ce425a5b
--- /dev/null
+++ b/diseases_knowledge_base/hibiscus/healthy.json
@@ -0,0 +1,88 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "hibiscus.healthy.healthy",
+  "aliases": [
+    "Normal hibiscus",
+    "Vigorous hibiscus"
+  ],
+  "crop": {
+    "common_name": "Hibiscus",
+    "scientific_name": "Hibiscus spp.",
+    "family": "Malvaceae"
+  },
+  "condition": {
+    "common_name": "Healthy",
+    "scientific_name": "",
+    "alt_names": [],
+    "pathogen": {
+      "type": "none",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "healthy",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [],
+    "temp_c_day": [],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "0% of foliage affected.",
+    "moderate": "Not applicable.",
+    "severe": "Not applicable.",
+    "notes": "Healthy is a binary state with zero symptoms. Any visible damage, discoloration, or stress would classify the plant under a different condition."
+  },
+  "symptoms": {
+    "leaves": [
+      "Foliage is uniformly green, though color may vary from light green to deep, dark green by cultivar.",
+      "Leaves are turgid, fully expanded, and well-formed.",
+      "Leaf surfaces are smooth and have a natural gloss or matte finish, typical for the species.",
+      "No spots, lesions, yellowing (chlorosis), browning (necrosis), or holes are present.",
+      "Leaf margins are intact and not curled, distorted, or crispy."
+    ],
+    "stems": [
+      "Stems are firm, upright, and support the plant structure.",
+      "Stem color is consistent, typically green to reddish-brown or woody, without cankers, lesions, or soft spots."
+    ],
+    "fruit": [
+      "Flowers (if present) are vibrant in color and fully formed.",
+      "Petals are free from spots, blemishes, or discoloration.",
+      "Buds are well-formed and not dropping prematurely."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Exhibits vigorous growth with new leaves and shoots.",
+      "Appears turgid and well-hydrated, not wilted.",
+      "Foliage is dense and distributed appropriately for the cultivar."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [],
+  "management": {
+    "cultural": [
+      "Provide consistent and adequate watering, allowing the top inch of soil to dry out between waterings.",
+      "Ensure placement in a location with adequate sunlight (typically 6-8 hours of direct sun).",
+      "Use well-draining soil to prevent root rot.",
+      "Apply a balanced fertilizer during the growing season according to label directions.",
+      "Prune as needed to encourage bushy growth and remove any dead or crossing branches."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "Management for a healthy plant focuses on preventative care and maintaining optimal growing conditions."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/hibiscus/senescence_or_dry.json b/diseases_knowledge_base/hibiscus/senescence_or_dry.json
new file mode 100644
index 0000000000000000000000000000000000000000..25317858f1f9f9fe70821795ea4585da2ad65bfe
--- /dev/null
+++ b/diseases_knowledge_base/hibiscus/senescence_or_dry.json
@@ -0,0 +1,118 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "hibiscus.physiological_symptom.senescence_or_dry",
+  "aliases": [
+    "hibiscus leaf yellowing",
+    "hibiscus drying out",
+    "natural aging hibiscus",
+    "water stress hibiscus"
+  ],
+  "crop": {
+    "common_name": "hibiscus",
+    "scientific_name": "Hibiscus rosa-sinensis",
+    "family": "Malvaceae"
+  },
+  "condition": {
+    "common_name": "Senescence or Dryness",
+    "scientific_name": null,
+    "alt_names": [
+      "water stress",
+      "natural leaf drop",
+      "leaf aging",
+      "drought stress"
+    ],
+    "pathogen": {
+      "type": "abiotic",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "physiological_symptom",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "inconsistent or insufficient watering",
+      "low ambient humidity",
+      "pot-bound root system",
+      "high temperatures and excessive direct sun exposure",
+      "end of natural leaf lifecycle (older leaves)",
+      "poorly draining soil"
+    ],
+    "temp_c_day": [
+      28,
+      40
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      0,
+      40
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "One to a few lower leaves are uniformly yellow. No significant wilting or leaf drop.",
+    "moderate": "Multiple lower and mid-plant leaves are yellow or brown and crispy. Some leaves have dropped. Minor wilting of upper foliage may be visible.",
+    "severe": "Widespread yellowing and browning across the plant. Significant leaf drop resulting in a sparse appearance. Stems are visibly wilted or drooping.",
+    "notes": "Severity is assessed based on the proportion and location of affected leaves on the whole plant, as well as the degree of wilting and leaf loss. Symptoms typically progress from the bottom of the plant upwards."
+  },
+  "symptoms": {
+    "leaves": [
+      "Lower, older leaves turn a solid, uniform yellow without distinct spots.",
+      "Yellowing progresses to browning as the leaf tissue desiccates.",
+      "Affected leaves become dry, brittle, and crispy to the touch.",
+      "Leaf margins may curl inwards or appear scorched from dryness.",
+      "The entire plant may show signs of wilting, with leaves drooping, especially during the day.",
+      "Affected leaves detach easily from the stem and fall off (abscission).",
+      "Unlike nutrient deficiencies, the yellowing is typically uniform across the leaf blade, not patterned along veins."
+    ],
+    "stems": [
+      "In severe cases, younger, green stems may lose turgidity and droop.",
+      "Stems of chronically stressed plants may appear woody and less vigorous."
+    ],
+    "fruit": [
+      "Flower buds may turn yellow and drop before they have a chance to open."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Overall plant appears sparse or thin due to leaf loss.",
+      "General lack of vigor and reduced flowering.",
+      "Plant may appear wilted or droopy."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Healthy",
+      "condition_id": "hibiscus.physiological_symptom.healthy",
+      "key_differences": [
+        "Healthy leaves are uniformly green and turgid, while senescent/dry leaves are yellow, brown, and may be wilted or crispy.",
+        "A healthy plant has dense foliage, whereas a dry plant often has significant leaf drop, especially from the lower sections.",
+        "Healthy stems are firm and upright, but stems on a severely dry plant may droop."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Provide consistent watering; check soil moisture 1-2 inches deep before watering again.",
+      "Ensure the pot has adequate drainage holes to prevent waterlogging, which can also cause similar symptoms.",
+      "If root-bound, repot into a slightly larger container with fresh, well-draining soil.",
+      "Move the plant to a location with bright, indirect light to avoid scorching from intense, direct sun.",
+      "Increase humidity around the plant by misting or using a pebble tray with water."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "Management is focused on identifying and correcting the abiotic stressor. It is not a disease and does not require pesticides."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/jackfruit/algal_leaf_spot.json b/diseases_knowledge_base/jackfruit/algal_leaf_spot.json
new file mode 100644
index 0000000000000000000000000000000000000000..d921274eed4d47e0677b723de8c02fd47b90cd8e
--- /dev/null
+++ b/diseases_knowledge_base/jackfruit/algal_leaf_spot.json
@@ -0,0 +1,122 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "jackfruit.disease_fungal.algal_leaf_spot",
+  "aliases": [
+    "red rust of jackfruit",
+    "Cephaleuros leaf spot"
+  ],
+  "crop": {
+    "common_name": "jackfruit",
+    "scientific_name": "Artocarpus heterophyllus",
+    "family": "Moraceae"
+  },
+  "condition": {
+    "common_name": "algal leaf spot",
+    "scientific_name": "Cephaleuros virescens",
+    "alt_names": [
+      "red rust"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Plantae",
+        "phylum": "Chlorophyta",
+        "class": "Ulvophyceae",
+        "order": "Trentepohliales",
+        "family": "Trentepohliaceae",
+        "genus": "Cephaleuros",
+        "species": "virescens"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [
+      "wind-driven rain"
+    ],
+    "dispersal": [
+      "water-splashed zoospores",
+      "wind"
+    ],
+    "overwintering": [
+      "in lesions on leaves and stems"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high humidity",
+      "frequent rainfall",
+      "poor air circulation",
+      "low plant vigor",
+      "shaded conditions"
+    ],
+    "temp_c_day": [
+      25,
+      32
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      80,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 8
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area affected with distinct, small spots.",
+    "moderate": "11-30% of leaf area affected, spots may be coalescing.",
+    "severe": ">30% of leaf area affected, extensive spotting, potential leaf yellowing and premature drop.",
+    "notes": "Severity is based on the percentage of the total leaf surface covered by the characteristic raised, velvety spots. Assessment should be made on a representative sample of leaves from the plant."
+  },
+  "symptoms": {
+    "leaves": [
+      "Circular to irregular spots on the upper leaf surface.",
+      "Spots are distinctly raised with a velvety or felt-like texture.",
+      "Lesion color is initially greenish-gray, maturing to orange or reddish-brown.",
+      "A necrotic border may develop around the algal spot.",
+      "Underlying leaf tissue may turn yellow (chlorosis) around the lesion.",
+      "In severe cases, spots can coalesce to cover large areas of the leaf.",
+      "Affected leaves may drop prematurely."
+    ],
+    "stems": [
+      "Similar raised, velvety, reddish-brown spots can appear on young, green stems.",
+      "Stem lesions can girdle and cause dieback of small twigs."
+    ],
+    "fruit": [
+      "Fruit is rarely affected, but superficial spots can occur under high disease pressure."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Reduced plant vigor and significant defoliation in severe, chronic infections."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible raised, tufted algal thallus (colony) on the leaf surface.",
+      "The characteristic orange to reddish-brown color is due to the presence of haematochrome, a carotenoid pigment."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "anthracnose",
+      "condition_id": "jackfruit.disease_fungal.anthracnose",
+      "key_differences": [
+        "Anthracnose lesions are typically sunken and dark brown to black, not raised and reddish-brown.",
+        "Anthracnose often shows concentric rings ('target spot' appearance), which is absent in algal leaf spot.",
+        "Anthracnose may produce slimy, pinkish spore masses in humid conditions, whereas algal spots are dry and velvety."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Improve air circulation through proper pruning of the canopy.",
+      "Avoid overhead irrigation to minimize leaf wetness duration.",
+      "Maintain plant vigor with balanced fertilization and adequate soil moisture.",
+      "Remove and destroy fallen leaves and heavily infected branches."
+    ],
+    "biological": [],
+    "chemical": [
+      "Apply copper-based fungicides (e.g., copper hydroxide, copper oxychloride) as a preventative measure during high-risk periods (warm, wet weather).",
+      "Fungicides containing mancozeb can also provide control."
+    ],
+    "notes": "Chemical control is often not necessary unless the infection is severe and impacting plant health. Focus on cultural practices first to create an environment less favorable for the alga."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/jackfruit/anthracnose.json b/diseases_knowledge_base/jackfruit/anthracnose.json
new file mode 100644
index 0000000000000000000000000000000000000000..b2931f3ec15d0320485a70268ef4d0cb95407171
--- /dev/null
+++ b/diseases_knowledge_base/jackfruit/anthracnose.json
@@ -0,0 +1,131 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "jackfruit.disease_fungal.anthracnose",
+  "aliases": [
+    "jackfruit dieback",
+    "twig blight",
+    "blossom blight"
+  ],
+  "crop": {
+    "common_name": "jackfruit",
+    "scientific_name": "Artocarpus heterophyllus",
+    "family": "Moraceae"
+  },
+  "condition": {
+    "common_name": "anthracnose",
+    "scientific_name": "Colletotrichum gloeosporioides",
+    "alt_names": [
+      "dieback",
+      "fruit rot",
+      "leaf spot"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Sordariomycetes",
+        "order": "Glomerellales",
+        "family": "Glomerellaceae",
+        "genus": "Colletotrichum",
+        "species": "gloeosporioides"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [
+      "insects (minor)"
+    ],
+    "dispersal": [
+      "rain splash",
+      "wind-driven rain",
+      "contaminated tools",
+      "infected planting material"
+    ],
+    "overwintering": [
+      "infected leaves",
+      "twigs",
+      "mummified fruit",
+      "cankers on stems"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high humidity",
+      "frequent rainfall",
+      "prolonged leaf wetness",
+      "dense canopy",
+      "young, tender growth"
+    ],
+    "temp_c_day": [
+      25,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      90,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 12
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "< 5% of leaf or fruit surface area affected by lesions.",
+    "moderate": "5-25% of leaf or fruit surface area affected; some twig dieback may be present.",
+    "severe": "> 25% of leaf or fruit surface area affected; extensive twig dieback, blossom blight, or fruit rot.",
+    "notes": "Severity is assessed on the most affected plant part (leaf, fruit, or stem). For dieback or blight, assessment is qualitative based on canopy damage."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, water-soaked spots appear on young leaves, enlarging into irregular brown to black necrotic lesions.",
+      "Lesions often have a dark border and a lighter, tan-to-gray center.",
+      "A 'shot-hole' appearance can occur as the necrotic centers fall out.",
+      "In severe cases, leaves may yellow, curl, and drop prematurely."
+    ],
+    "stems": [
+      "Causes dieback of young twigs and shoots, starting from the tip and progressing downward.",
+      "Affected twigs turn dark brown to black and wither.",
+      "Small, sunken cankers may form on older branches."
+    ],
+    "fruit": [
+      "Small, dark, sunken, circular spots develop on the fruit surface.",
+      "Lesions enlarge, coalesce, and can cover large areas of the fruit.",
+      "Infection can lead to premature fruit drop or extensive rot, making the fruit inedible."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "General decline and reduced vigor in severe, chronic infections."
+    ],
+    "signs_microscopic_or_visible": [
+      "Pink to orange gelatinous spore masses (acervuli) visible on lesions under moist conditions."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "algal leaf spot",
+      "condition_id": "jackfruit.disease_other.algal_leaf_spot",
+      "key_differences": [
+        "Algal spots are raised, superficial, and have a velvety texture, typically appearing orange-rust to grayish-green.",
+        "Anthracnose lesions are sunken, necrotic (dead tissue), and brown-to-black, developing within the leaf tissue itself.",
+        "Algal spots do not cause the 'shot-hole' effect or twig dieback associated with anthracnose."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Prune to improve air circulation and light penetration within the canopy.",
+      "Remove and destroy infected twigs, leaves, and mummified fruit (sanitation).",
+      "Avoid overhead irrigation to minimize leaf wetness duration.",
+      "Maintain plant vigor with proper fertilization and watering."
+    ],
+    "biological": [
+      "Application of Bacillus subtilis-based bio-fungicides may suppress the pathogen."
+    ],
+    "chemical": [
+      "Apply preventative fungicides (e.g., copper-based, mancozeb, or strobilurins) before or during the rainy season.",
+      "Follow label instructions for application timing, rates, and pre-harvest intervals."
+    ],
+    "notes": "An integrated pest management (IPM) approach combining cultural practices with timely fungicide applications is most effective for managing anthracnose."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/jackfruit/healthy.json b/diseases_knowledge_base/jackfruit/healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..89657d150e6f4daee915e79dbb87e8c2cd1b186b
--- /dev/null
+++ b/diseases_knowledge_base/jackfruit/healthy.json
@@ -0,0 +1,124 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "jackfruit.healthy.healthy",
+  "aliases": [
+    "normal jackfruit",
+    "asymptomatic jackfruit",
+    "unaffected jackfruit"
+  ],
+  "crop": {
+    "common_name": "jackfruit",
+    "scientific_name": "Artocarpus heterophyllus",
+    "family": "Moraceae"
+  },
+  "condition": {
+    "common_name": "healthy",
+    "scientific_name": null,
+    "alt_names": [
+      "asymptomatic",
+      "normal"
+    ],
+    "pathogen": {
+      "type": "none",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "healthy",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [],
+    "temp_c_day": [],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Plant shows no signs of disease or stress. Leaves are uniformly colored, fully expanded, and free of spots or malformations.",
+    "moderate": "Not applicable for a healthy state.",
+    "severe": "Not applicable for a healthy state.",
+    "notes": "This is a binary assessment; the plant is either healthy (meeting the 'mild' description) or it is not. Any visible symptom would classify it as having a condition other than 'healthy'."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uniformly green color, typically a deep, glossy green on the upper surface.",
+      "Smooth, entire (un-toothed) leaf margins.",
+      "Absence of spots, lesions, discoloration, or pustules.",
+      "No yellowing (chlorosis) or browning (necrosis).",
+      "Normal size and shape for the cultivar; typically oblong or ovate.",
+      "No curling, distortion, or stunting.",
+      "Surface is clean, without any powdery, sooty, or sticky coatings."
+    ],
+    "stems": [
+      "Stems and branches are firm, with intact, typically grayish-brown bark.",
+      "No cankers, galls, cracks, or oozing substances."
+    ],
+    "fruit": [
+      "Skin is uniformly colored according to maturity (green when young, yellowish-green to brown when ripe).",
+      "Exterior is free from sunken lesions, soft spots, mold, or unusual blemishes.",
+      "Fruit is firm and develops to a normal size and shape."
+    ],
+    "roots": [
+      "Not typically visible in standard images."
+    ],
+    "whole_plant": [
+      "Exhibits vigorous growth with a dense, full canopy.",
+      "No widespread wilting, dieback, or stunting."
+    ],
+    "signs_microscopic_or_visible": [
+      "Absence of any visible pathogen structures such as fungal mycelium, spores, fruiting bodies, or bacterial ooze."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Algal Leaf Spot",
+      "condition_id": "jackfruit.fungal.algal_leaf_spot",
+      "key_differences": [
+        "Healthy leaves have a smooth, uniform surface, whereas algal leaf spot creates raised, velvety, greenish-gray to orange spots.",
+        "Healthy leaves lack the distinct, roughly circular lesions characteristic of this condition.",
+        "There are no yellow halos on healthy leaves, which can sometimes border algal spots."
+      ]
+    },
+    {
+      "condition_name": "Sooty Mold",
+      "condition_id": "jackfruit.fungal.sooty_mold",
+      "key_differences": [
+        "Healthy leaves have a clean, glossy surface, not a superficial, black, soot-like coating that can be wiped off.",
+        "The surface of healthy leaves and stems is not sticky with honeydew, which is the substrate for sooty mold growth.",
+        "Healthy plants do not have associated infestations of sap-sucking insects (like aphids or scale) that produce honeydew."
+      ]
+    },
+    {
+      "condition_name": "Anthracnose",
+      "condition_id": "jackfruit.fungal.anthracnose",
+      "key_differences": [
+        "Healthy leaves are free of the irregular, dark brown to black, necrotic spots or blotches caused by anthracnose.",
+        "Healthy fruit does not have the characteristic dark, sunken, circular lesions that may develop pinkish spore masses in the center.",
+        "Healthy young twigs and shoots show no signs of dieback, which is a common symptom of severe anthracnose."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Provide adequate spacing between plants to ensure good air circulation.",
+      "Practice balanced fertilization and proper irrigation to maintain plant vigor.",
+      "Prune to remove dead or weak branches and improve light penetration.",
+      "Ensure good field sanitation by removing and destroying fallen leaves and fruit."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "Management for a healthy plant is preventative, focusing on cultural practices that create an environment unfavorable for pathogen development and promote overall plant health."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/jackfruit/leaf_spot.json b/diseases_knowledge_base/jackfruit/leaf_spot.json
new file mode 100644
index 0000000000000000000000000000000000000000..22b73bbdfb85e3516a3e124b09470ecd2e2b34ed
--- /dev/null
+++ b/diseases_knowledge_base/jackfruit/leaf_spot.json
@@ -0,0 +1,141 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "jackfruit.disease_fungal.leaf_spot",
+  "aliases": [
+    "Phomopsis leaf spot of jackfruit",
+    "Fungal leaf spot of jackfruit"
+  ],
+  "crop": {
+    "common_name": "jackfruit",
+    "scientific_name": "Artocarpus heterophyllus",
+    "family": "Moraceae"
+  },
+  "condition": {
+    "common_name": "leaf spot",
+    "scientific_name": "Phomopsis artocarpina",
+    "alt_names": [
+      "Phomopsis leaf spot"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Diaporthales",
+        "family": "Diaporthaceae",
+        "genus": "Phomopsis",
+        "species": "artocarpina"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "wind-driven rain",
+      "water splash",
+      "contaminated pruning tools"
+    ],
+    "overwintering": [
+      "infected leaf debris on the ground",
+      "dormant mycelium in lesions on twigs"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "prolonged leaf wetness",
+      "high humidity",
+      "poor air circulation in the canopy",
+      "frequent rainfall during warm weather"
+    ],
+    "temp_c_day": [
+      24,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 8
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area affected; few, scattered lesions, no significant yellowing.",
+    "moderate": "11-40% of leaf area affected; multiple lesions, some may be coalescing, minor leaf yellowing present.",
+    "severe": ">40% of leaf area affected; extensive lesion coverage forming large necrotic patches, significant yellowing, and potential for premature leaf drop.",
+    "notes": "Severity is estimated based on the percentage of the total leaf surface covered by spots and associated chlorosis/necrosis on a representative, fully expanded leaf."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial spots are small, circular, and yellowish to light brown.",
+      "Lesions expand to become irregular or angular, sometimes limited by leaf veins.",
+      "Mature spots develop a characteristic grayish-tan to white center.",
+      "A distinct, dark brown or purplish border surrounds the necrotic center.",
+      "A diffuse yellow halo may be present around the lesion border.",
+      "Tiny black dots (pycnidia) may be visible with a hand lens in the center of older lesions.",
+      "In severe infections, multiple lesions coalesce to form large, blighted areas.",
+      "Affected leaves may turn yellow (chlorosis) and drop prematurely, leading to defoliation."
+    ],
+    "stems": [
+      "Lesions on young twigs are rare but can appear as small, sunken, dark spots."
+    ],
+    "fruit": [
+      "Fruit infection is uncommon, but may present as small, circular, sunken, dark lesions on the rind."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Reduced plant vigor and sparse canopy in cases of severe, chronic infection and defoliation."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible sign: small, black, flask-shaped fruiting bodies (pycnidia) embedded in the necrotic tissue of the lesion center."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "anthracnose",
+      "condition_id": "jackfruit.disease_fungal.anthracnose",
+      "key_differences": [
+        "Anthracnose lesions are typically darker brown to black, more sunken, and may show concentric rings ('target spot' appearance).",
+        "Anthracnose often causes a more severe blight on young leaves and shoots, leading to distortion and dieback.",
+        "Under humid conditions, anthracnose lesions may produce visible pinkish-orange spore masses (acervuli), which are absent in this leaf spot."
+      ]
+    },
+    {
+      "condition_name": "phyllosticta",
+      "condition_id": "jackfruit.disease_fungal.phyllosticta",
+      "key_differences": [
+        "Phyllosticta spots are often larger, more consistently circular, and have a more papery, light tan-colored center.",
+        "The dark border on Phyllosticta lesions can be more pronounced, wider, and more sharply defined.",
+        "The black pycnidia (fruiting bodies) in Phyllosticta may be larger and more prominent within the lesion center."
+      ]
+    },
+    {
+      "condition_name": "algal_leaf_spot",
+      "condition_id": "jackfruit.physiological_symptom.algal_leaf_spot",
+      "key_differences": [
+        "Algal spots are superficial and have a raised, velvety, or crusty texture, whereas fungal spots are necrotic and can be sunken.",
+        "Algal spots are typically greenish-gray to orange-red in color, not brown or tan with a dark border.",
+        "Algal spots do not cause the leaf tissue to die or develop a surrounding yellow halo."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Prune the tree canopy to improve air circulation and sunlight penetration.",
+      "Rake and destroy fallen infected leaves to reduce pathogen inoculum.",
+      "Use drip or furrow irrigation instead of overhead sprinklers to keep foliage dry.",
+      "Maintain balanced plant nutrition to enhance tree vigor and disease resistance."
+    ],
+    "biological": [
+      "Applications of products containing *Bacillus subtilis* or *Trichoderma* spp. may help suppress the pathogen as a preventative measure."
+    ],
+    "chemical": [
+      "Apply protective fungicides containing copper hydroxide, mancozeb, or chlorothalonil before or during the rainy season.",
+      "Ensure thorough spray coverage on both upper and lower leaf surfaces.",
+      "Alternate fungicide chemistries to prevent the development of resistance."
+    ],
+    "notes": "Management is most effective when integrating cultural practices with preventative chemical applications during high-risk periods."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/jackfruit/phyllosticta.json b/diseases_knowledge_base/jackfruit/phyllosticta.json
new file mode 100644
index 0000000000000000000000000000000000000000..b6bcdc73db5d96322ac7e25350ee3ff401df24aa
--- /dev/null
+++ b/diseases_knowledge_base/jackfruit/phyllosticta.json
@@ -0,0 +1,125 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "jackfruit.disease_fungal.phyllosticta",
+  "aliases": [
+    "Phyllosticta leaf spot of jackfruit",
+    "Jackfruit leaf spot"
+  ],
+  "crop": {
+    "common_name": "jackfruit",
+    "scientific_name": "Artocarpus heterophyllus",
+    "family": "Moraceae"
+  },
+  "condition": {
+    "common_name": "Phyllosticta leaf spot",
+    "scientific_name": "Phyllosticta artocarpina",
+    "alt_names": [],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Botryosphaeriales",
+        "family": "Phyllostictaceae",
+        "genus": "Phyllosticta",
+        "species": "artocarpina"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "rain splash",
+      "wind-driven rain",
+      "contaminated pruning tools"
+    ],
+    "overwintering": [
+      "infected leaf debris on the ground",
+      "dormant mycelium in existing lesions on attached leaves and twigs"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high humidity",
+      "prolonged leaf wetness",
+      "dense canopy with poor air circulation",
+      "frequent rainfall"
+    ],
+    "temp_c_day": [
+      24,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 8
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-5% of leaf area affected. Few, scattered lesions, typically less than 10 per mature leaf.",
+    "moderate": "6-25% of leaf area affected. Multiple lesions are present, some may begin to coalesce. Minor chlorosis (yellowing) may appear around spots.",
+    "severe": ">25% of leaf area affected. Numerous lesions coalesce into large necrotic blotches. Significant chlorosis and premature leaf drop (defoliation) is likely.",
+    "notes": "Assessment should be based on the average symptomatic area across several mature leaves on a branch, not just the single worst leaf."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial symptoms are small, circular, yellowish spots on the leaf lamina.",
+      "Spots enlarge over time, becoming circular to slightly irregular, up to 1 cm in diameter.",
+      "Mature lesions develop a characteristic pale, grayish-white or tan center.",
+      "A distinct, raised, dark brown to purplish-black border sharply delineates the necrotic center.",
+      "Tiny, black, dot-like fungal fruiting bodies (pycnidia) are often visible in the pale center, sometimes in a concentric ring pattern.",
+      "A diffuse yellow halo may surround the entire lesion.",
+      "In severe infections, multiple spots may merge (coalesce) to form large, irregular dead patches.",
+      "Heavily infected leaves may become distorted, curl, and fall prematurely."
+    ],
+    "stems": [],
+    "fruit": [],
+    "roots": [],
+    "whole_plant": [],
+    "signs_microscopic_or_visible": [
+      "Presence of black pycnidia (fruiting bodies) in the center of mature lesions, which can be seen with the naked eye or a hand lens."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Anthracnose",
+      "condition_id": "jackfruit.disease_fungal.anthracnose",
+      "key_differences": [
+        "Anthracnose lesions are typically darker brown to black, often sunken, and may appear water-soaked, especially on young tissues.",
+        "Phyllosticta spots have a more defined, pale gray or white center with a sharp, dark border, a combination less common in anthracnose.",
+        "Under humid conditions, anthracnose can produce salmon-pink spore masses (acervuli) in lesions, whereas Phyllosticta produces tiny black dots (pycnidia).",
+        "Anthracnose commonly affects fruit, causing rot, which is not a primary symptom of Phyllosticta leaf spot."
+      ]
+    },
+    {
+      "condition_name": "Algal Leaf Spot",
+      "condition_id": "jackfruit.disease_other.algal_leaf_spot",
+      "key_differences": [
+        "Algal spots are superficial and have a raised, velvety, or crusty texture, unlike the flat, necrotic tissue of Phyllosticta lesions.",
+        "The color of algal spots is typically greenish-gray to rusty orange, lacking the distinct pale center and dark border of Phyllosticta.",
+        "Algal spots are colonies growing on the leaf surface and can often be physically scraped off, whereas Phyllosticta lesions are dead tissue integral to the leaf."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Practice good field sanitation by removing and destroying fallen leaves and infected plant debris.",
+      "Prune trees to improve air circulation and sunlight penetration within the canopy, which helps leaves dry faster.",
+      "Avoid overhead irrigation that wets foliage for extended periods; use drip or soaker hoses instead.",
+      "Maintain plant vigor with balanced fertilization and proper watering, as stressed plants are more susceptible."
+    ],
+    "biological": [
+      "Applications of bio-fungicides containing strains of *Bacillus subtilis* or *Trichoderma* spp. may help suppress the pathogen."
+    ],
+    "chemical": [
+      "Apply protective fungicides, such as those containing copper hydroxide, mancozeb, or chlorothalonil, during periods of high risk (e.g., rainy season).",
+      "Ensure thorough spray coverage on both upper and lower leaf surfaces.",
+      "Alternate fungicides with different modes of action to prevent the development of pathogen resistance."
+    ],
+    "notes": "Management should focus on preventative cultural practices. Chemical intervention is typically only warranted in commercial settings where disease pressure is high and impacting tree health or yield."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/jackfruit/sooty_mold.json b/diseases_knowledge_base/jackfruit/sooty_mold.json
new file mode 100644
index 0000000000000000000000000000000000000000..19655491cd372bceadd2e83c98ba5af177e03972
--- /dev/null
+++ b/diseases_knowledge_base/jackfruit/sooty_mold.json
@@ -0,0 +1,145 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "jackfruit.disease_fungal.sooty_mold",
+  "aliases": [
+    "sooty mould",
+    "black mold"
+  ],
+  "crop": {
+    "common_name": "jackfruit",
+    "scientific_name": "Artocarpus heterophyllus",
+    "family": "Moraceae"
+  },
+  "condition": {
+    "common_name": "sooty mold",
+    "scientific_name": "Capnodium spp., Meliola spp., Leptoxyphium spp.",
+    "alt_names": [
+      "honeydew mold",
+      "black sooty mold"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Capnodiales",
+        "family": "Capnodiaceae",
+        "genus": "Capnodium",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [
+      "aphids",
+      "mealybugs",
+      "scale insects",
+      "whiteflies"
+    ],
+    "dispersal": [
+      "wind",
+      "rain_splash"
+    ],
+    "overwintering": [
+      "As mycelium on plant surfaces in honeydew deposits"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Presence of honeydew-producing insects",
+      "High humidity",
+      "Poor air circulation",
+      "Shaded conditions"
+    ],
+    "temp_c_day": [
+      20,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      70,
+      95
+    ],
+    "leaf_wetness_hours_threshold": 8
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf surface covered with a thin, patchy black coating.",
+    "moderate": "11-40% of leaf surface covered, with some dense patches forming.",
+    "severe": ">40% of leaf surface covered by a thick, continuous black crust, potentially causing leaf yellowing.",
+    "notes": "Severity measures the coverage of the superficial fungal growth, which is non-parasitic and grows on insect honeydew. The mold itself can be wiped off."
+  },
+  "symptoms": {
+    "leaves": [
+      "Thin to thick, black, soot-like coating on the upper leaf surface.",
+      "Fungal growth is superficial and can be easily wiped or scraped off the leaf.",
+      "Patches may be small and sparse or coalesce to cover the entire leaf blade.",
+      "Underlying leaf tissue remains green initially but may yellow (chlorosis) if the coating is thick and blocks sunlight.",
+      "A clear, sticky substance (honeydew) is often present on or beneath the mold.",
+      "Ants may be seen farming the honeydew-producing insects."
+    ],
+    "stems": [
+      "Similar black, sooty coating can form on twigs and branches, especially near insect colonies."
+    ],
+    "fruit": [
+      "Superficial black, sooty patches on the fruit rind.",
+      "The mold is a cosmetic blemish and does not cause the fruit to rot."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Reduced plant vigor and stunted growth in severe cases due to impaired photosynthesis.",
+      "Visible infestation of sucking insects like mealybugs, aphids, or scale."
+    ],
+    "signs_microscopic_or_visible": [
+      "Black, thread-like fungal strands (mycelia) visible on plant surfaces.",
+      "Presence of honeydew-producing insects."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "anthracnose",
+      "condition_id": "jackfruit.disease_fungal.anthracnose",
+      "key_differences": [
+        "Sooty mold is a superficial coating that can be wiped off; anthracnose lesions are sunken, necrotic tissue that cannot be wiped off.",
+        "Anthracnose causes distinct dark brown to black spots *within* the leaf tissue, not on top of it.",
+        "Anthracnose lesions often have a defined border and may show concentric rings, unlike the irregular spread of sooty mold."
+      ]
+    },
+    {
+      "condition_name": "algal leaf spot",
+      "condition_id": "jackfruit.disease_algal.algal_leaf_spot",
+      "key_differences": [
+        "Algal spots are typically raised, velvety, and grayish-green or orange-brown, not black and powdery like sooty mold.",
+        "Algal spots are tightly attached to the leaf tissue and cannot be easily scraped off.",
+        "Sooty mold is associated with sticky honeydew from insects, while algal spot is not."
+      ]
+    },
+    {
+      "condition_name": "phyllosticta",
+      "condition_id": "jackfruit.disease_fungal.phyllosticta",
+      "key_differences": [
+        "Phyllosticta causes distinct lesions with tan or gray centers and dark borders within the leaf, whereas sooty mold is a uniform black layer on the leaf surface.",
+        "Sooty mold can be wiped away, revealing healthy tissue underneath; Phyllosticta is a necrotic spot that is part of the leaf.",
+        "Phyllosticta lesions may contain tiny black fruiting bodies (pycnidia) visible as specks, which are absent in sooty mold."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Control populations of honeydew-producing insects (mealybugs, aphids, scale) as this is the primary cause.",
+      "Prune affected branches to improve air circulation and sunlight penetration.",
+      "Wash off mold and honeydew from leaves with a strong spray of water and mild soap.",
+      "Avoid excessive nitrogen fertilization which can lead to lush growth favored by sucking insects."
+    ],
+    "biological": [
+      "Introduce or encourage natural predators of sucking insects, such as lady beetles, lacewings, and parasitic wasps."
+    ],
+    "chemical": [
+      "Apply horticultural oils or insecticidal soaps to control the insect populations.",
+      "Fungicides are generally not recommended or effective as the fungus is non-parasitic and grows on the honeydew, not the plant tissue."
+    ],
+    "notes": "Management must focus on controlling the insect pest that is producing the honeydew. Once the insects are gone, the sooty mold will weather away."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/lemon/bacterial_canker.json b/diseases_knowledge_base/lemon/bacterial_canker.json
new file mode 100644
index 0000000000000000000000000000000000000000..d9b776855e4d2c64e6c91b34fb8f0a11b35d1b7e
--- /dev/null
+++ b/diseases_knowledge_base/lemon/bacterial_canker.json
@@ -0,0 +1,146 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "lemon.disease_bacterial.bacterial_canker",
+  "aliases": [
+    "citrus canker",
+    "Asiatic citrus canker"
+  ],
+  "crop": {
+    "common_name": "lemon",
+    "scientific_name": "Citrus limon",
+    "family": "Rutaceae"
+  },
+  "condition": {
+    "common_name": "bacterial canker",
+    "scientific_name": "Xanthomonas citri subsp. citri",
+    "alt_names": [
+      "citrus canker"
+    ],
+    "pathogen": {
+      "type": "disease_bacterial",
+      "taxonomy": {
+        "kingdom": "Bacteria",
+        "phylum": "Pseudomonadota",
+        "class": "Gammaproteobacteria",
+        "order": "Xanthomonadales",
+        "family": "Xanthomonadaceae",
+        "genus": "Xanthomonas",
+        "species": "X. citri subsp. citri"
+      }
+    }
+  },
+  "issue_type": "disease_bacterial",
+  "transmission": {
+    "vectors": [
+      "Citrus leafminer (Phyllocnistis citrella)",
+      "Humans (via contaminated tools, clothing, or equipment)"
+    ],
+    "dispersal": [
+      "Wind-driven rain",
+      "Water splash from irrigation or rain",
+      "Mechanical movement of infected plant material"
+    ],
+    "overwintering": [
+      "In lesions on leaves, twigs, and branches remaining on the tree"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High rainfall and humidity",
+      "Warm temperatures",
+      "Wounds from wind, thorns, or insect feeding (e.g., citrus leafminer)"
+    ],
+    "temp_c_day": [
+      20,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      80,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 6
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "< 5% of leaf area affected with distinct, scattered lesions.",
+    "moderate": "5-25% of leaf area affected; some lesions may coalesce; minor twig dieback possible.",
+    "severe": "> 25% of leaf area affected; extensive lesion coalescence, significant defoliation, twig dieback, and fruit drop.",
+    "notes": "Severity is assessed on the most affected leaves and overall canopy impact. Fruit lesions also contribute to severity, but leaf area is a primary visual indicator for image-based assessment."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, raised, blister-like lesions appear on both upper and lower leaf surfaces.",
+      "Lesions develop a corky, crater-like center, often appearing rough or scab-like.",
+      "A distinct, water-soaked margin surrounds young lesions.",
+      "A bright yellow halo encircles the entire lesion.",
+      "Lesions can coalesce, leading to large, irregular necrotic areas.",
+      "Severe infections cause premature leaf drop (defoliation).",
+      "The center of older lesions may fall out, creating a 'shot-hole' appearance."
+    ],
+    "stems": [
+      "Raised, corky cankers form on twigs and young branches.",
+      "Stem cankers are visually similar to leaf lesions but may lack a prominent yellow halo.",
+      "Severe stem infections can lead to twig dieback."
+    ],
+    "fruit": [
+      "Raised, corky, crater-like lesions appear on the fruit rind.",
+      "Fruit lesions are surrounded by a water-soaked or oily margin.",
+      "Lesions do not penetrate deep into the fruit pulp but make fruit unmarketable.",
+      "Severe infections cause premature fruit drop."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "General decline, reduced vigor, and sparse foliage in chronically infected trees."
+    ],
+    "signs_microscopic_or_visible": [
+      "Under high humidity, bacterial ooze may be visible from young lesions, but this is not a common field observation."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "citrus leafminer",
+      "condition_id": "lemon.pest_damage.citrus_leafminer",
+      "key_differences": [
+        "Leafminer damage consists of silvery, serpentine (winding) trails or tunnels within the leaf tissue, not circular spots.",
+        "Canker lesions are raised and corky, whereas leafminer trails are sunken or at the leaf surface.",
+        "Leafminer damage often causes severe leaf curling and distortion, which is less typical for canker alone.",
+        "Canker lesions have a distinct yellow halo, which is absent in leafminer trails."
+      ]
+    },
+    {
+      "condition_name": "nutritional deficiency",
+      "condition_id": "lemon.nutritional_deficiency.generic",
+      "key_differences": [
+        "Deficiency symptoms (e.g., yellowing, mottling) are typically symmetrical across the leaf or follow vein patterns (e.g., 'inverted V').",
+        "Canker lesions are discrete, raised, corky spots, often randomly distributed.",
+        "Deficiencies cause changes in color (chlorosis) but do not create raised, crater-like lesions."
+      ]
+    },
+    {
+      "condition_name": "bacterial_spot",
+      "condition_id": "lemon.disease_bacterial.bacterial_spot",
+      "key_differences": [
+        "Bacterial spot lesions are often smaller, darker, and more angular or water-soaked than canker.",
+        "Canker lesions are distinctly raised and have a more prominent corky, crater-like texture.",
+        "The yellow halo around canker is typically more pronounced and consistently present than in bacterial spot."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant only certified disease-free nursery stock.",
+      "Prune and destroy infected twigs and branches during dry weather.",
+      "Install windbreaks around orchards to reduce wind speed and rain splash.",
+      "Decontaminate pruning tools and equipment between trees and blocks."
+    ],
+    "biological": [
+      "No widely effective biological control agents are commercially available for canker."
+    ],
+    "chemical": [
+      "Preventative applications of copper-based bactericides are the primary chemical control.",
+      "Sprays should be timed to protect new growth flushes, especially before rainy seasons."
+    ],
+    "notes": "Management is focused on prevention and reducing inoculum. Eradication is difficult once established. The disease is subject to strict quarantine regulations in many citrus-producing regions."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/lemon/bacterial_spot.json b/diseases_knowledge_base/lemon/bacterial_spot.json
new file mode 100644
index 0000000000000000000000000000000000000000..b03f4669b5b2df83c5c72cd4678af84e230e5940
--- /dev/null
+++ b/diseases_knowledge_base/lemon/bacterial_spot.json
@@ -0,0 +1,144 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "lemon.disease_bacterial.bacterial_spot",
+  "aliases": [
+    "Citrus Bacterial Spot",
+    "CBS"
+  ],
+  "crop": {
+    "common_name": "lemon",
+    "scientific_name": "Citrus limon",
+    "family": "Rutaceae"
+  },
+  "condition": {
+    "common_name": "bacterial spot",
+    "scientific_name": "Xanthomonas alfalfae subsp. citrumelonis",
+    "alt_names": [],
+    "pathogen": {
+      "type": "disease_bacterial",
+      "taxonomy": {
+        "kingdom": "Bacteria",
+        "phylum": "Pseudomonadota",
+        "class": "Gammaproteobacteria",
+        "order": "Lysobacterales",
+        "family": "Lysobacteraceae",
+        "genus": "Xanthomonas",
+        "species": "Xanthomonas alfalfae subsp. citrumelonis"
+      }
+    }
+  },
+  "issue_type": "disease_bacterial",
+  "transmission": {
+    "vectors": [
+      "Wind-driven rain",
+      "Insects (e.g., citrus leafminers creating wounds)",
+      "Contaminated pruning tools"
+    ],
+    "dispersal": [
+      "Water splash from rain or irrigation",
+      "Aerosols in windy conditions",
+      "Human activity (handling, equipment)"
+    ],
+    "overwintering": [
+      "In lesions on leaves, stems, and fruit",
+      "On plant debris on the ground"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Prolonged periods of leaf wetness",
+      "High humidity and frequent rainfall",
+      "Warm temperatures",
+      "Presence of wounds from wind, hail, or pests"
+    ],
+    "temp_c_day": [
+      20,
+      32
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      80,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 4
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "< 5% of the leaf surface is affected by lesions. No significant yellowing or leaf drop.",
+    "moderate": "5-25% of the leaf surface is affected. Some lesions may be coalescing, and minor leaf yellowing (chlorosis) is present.",
+    "severe": "> 25% of the leaf surface is affected, with large necrotic areas, significant yellowing, and/or premature leaf drop (defoliation).",
+    "notes": "Severity is assessed on representative, fully symptomatic leaves. For fruit, severity can be assessed by lesion count (e.g., mild: 1-5, moderate: 6-15, severe: >15)."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial symptoms are small, circular, water-soaked spots, often on the leaf underside.",
+      "Lesions enlarge to 1-5 mm, becoming dark brown to black.",
+      "A distinct, bright yellow halo typically surrounds the dark, necrotic center.",
+      "Spots may have a greasy or oily appearance, especially when young.",
+      "Lesions feel flat or slightly sunken, not rough or raised like canker.",
+      "In severe cases, spots merge, forming large, irregular blighted areas.",
+      "Infected leaves may yellow and drop prematurely."
+    ],
+    "stems": [
+      "Small, dark, slightly elongated lesions may form on young, green twigs, but are less common than leaf symptoms."
+    ],
+    "fruit": [
+      "Small, dark brown to black, circular pits or spots develop on the rind.",
+      "Fruit lesions are typically sunken and do not become corky or raised.",
+      "A yellow halo may be visible around spots on immature, green fruit.",
+      "Lesions are generally superficial and do not cause fruit rot."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "General thinning of the canopy due to defoliation in severe, prolonged infections."
+    ],
+    "signs_microscopic_or_visible": [
+      "Under conditions of very high humidity, bacterial ooze may be visible from the center of lesions, but this is difficult to observe in the field."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "bacterial canker",
+      "condition_id": "lemon.disease_bacterial.bacterial_canker",
+      "key_differences": [
+        "Bacterial spot lesions are typically flat or sunken and dark, while canker lesions are distinctly raised, corky, and crater-like (volcanic).",
+        "Canker lesions often have a water-soaked margin, whereas bacterial spot lesions are known for a more defined, bright yellow halo.",
+        "Canker lesions tend to be larger and more erumpent (bursting through the epidermis) than bacterial spot lesions."
+      ]
+    },
+    {
+      "condition_name": "nutritional deficiency",
+      "condition_id": "lemon.abiotic.nutritional_deficiency",
+      "key_differences": [
+        "Deficiency symptoms create patterns related to leaf veins (e.g., interveinal chlorosis, 'inverted V' shapes), while bacterial spots are randomly scattered, discrete lesions.",
+        "Bacterial spots are necrotic (dead tissue), whereas deficiency symptoms are typically chlorotic (yellowing) without distinct, dark spots.",
+        "Deficiency patterns often appear symmetrically on both halves of the leaf blade."
+      ]
+    },
+    {
+      "condition_name": "citrus_leafminer",
+      "condition_id": "lemon.pest_insect.citrus_leafminer",
+      "key_differences": [
+        "Leafminer damage consists of silvery, serpentine (winding) trails or 'mines' inside the leaf.",
+        "Bacterial spot manifests as circular, necrotic spots, not linear trails.",
+        "Leaves damaged by leafminers are often severely twisted, curled, and distorted, which is not a primary symptom of bacterial spot."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Prune trees to increase air circulation and promote faster drying of foliage.",
+      "Avoid overhead irrigation; use drip or micro-sprinklers to keep leaves dry.",
+      "Sanitize pruning equipment with a disinfectant between trees.",
+      "Remove and destroy fallen leaves and pruned branches to reduce inoculum."
+    ],
+    "biological": [
+      "Some commercial products containing *Bacillus subtilis* or other beneficial microbes may help suppress the pathogen when applied preventatively."
+    ],
+    "chemical": [
+      "Apply copper-based bactericides preventatively, especially before rainy seasons, to protect new growth.",
+      "Repeat applications may be necessary according to label instructions during periods of high disease pressure."
+    ],
+    "notes": "Management is focused on prevention. Once infection occurs, chemical sprays primarily serve to protect uninfected tissue, not to cure existing lesions."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/lemon/citrus_leafminer.json b/diseases_knowledge_base/lemon/citrus_leafminer.json
new file mode 100644
index 0000000000000000000000000000000000000000..bf6d250e7c1a11dc34b333b0ec9ed0f16ad75877
--- /dev/null
+++ b/diseases_knowledge_base/lemon/citrus_leafminer.json
@@ -0,0 +1,142 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "lemon.pest_insect.citrus_leafminer",
+  "aliases": [
+    "CLM",
+    "lemon leafminer"
+  ],
+  "crop": {
+    "common_name": "lemon",
+    "scientific_name": "Citrus limon",
+    "family": "Rutaceae"
+  },
+  "condition": {
+    "common_name": "citrus leafminer",
+    "scientific_name": "Phyllocnistis citrella",
+    "alt_names": [
+      "CLM"
+    ],
+    "pathogen": {
+      "type": "insect",
+      "taxonomy": {
+        "kingdom": "Animalia",
+        "phylum": "Arthropoda",
+        "class": "Insecta",
+        "order": "Lepidoptera",
+        "family": "Gracillariidae",
+        "genus": "Phyllocnistis",
+        "species": "citrella"
+      }
+    }
+  },
+  "issue_type": "pest_insect",
+  "transmission": {
+    "vectors": [
+      "Adult moths (oviposition)"
+    ],
+    "dispersal": [
+      "Adult moth flight",
+      "Wind",
+      "Movement of infested plant material"
+    ],
+    "overwintering": [
+      "Pupae in curled leaves or on bark"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Presence of new, tender leaf flushes",
+      "Warm, humid conditions",
+      "Lack of natural enemies"
+    ],
+    "temp_c_day": [
+      20,
+      32
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      60,
+      90
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Fewer than 25% of new flush leaves show mining trails; minimal leaf curling.",
+    "moderate": "25-75% of new flush leaves show mining trails; noticeable leaf curling and distortion is present.",
+    "severe": "Over 75% of new flush leaves are mined, with significant leaf curling, distortion, and stunting of new growth.",
+    "notes": "Severity is assessed on new, tender growth (leaf flushes), as citrus leafminers primarily attack young leaves. The percentage refers to the proportion of newly emerged leaves that are affected."
+  },
+  "symptoms": {
+    "leaves": [
+      "Presence of serpentine or meandering, silvery or whitish trails (mines) on the leaf surface.",
+      "A dark, thin line of frass (excrement) is visible running down the center of the mine.",
+      "Affected leaves become curled, twisted, or distorted, especially at the margins.",
+      "Mines are most common on the underside of young, tender leaves but can appear on the top surface.",
+      "At the end of a mature mine, the leaf edge may be curled over to protect the pupal chamber.",
+      "Older, hardened leaves are not attacked.",
+      "Severe infestations cause new growth to appear stunted and crinkled.",
+      "Mined areas may turn brown and necrotic over time."
+    ],
+    "stems": [
+      "Mines may occasionally extend onto young, green, and tender stems."
+    ],
+    "fruit": [
+      "Mines can appear on the rind of young fruit, causing silvery, scarred patterns, though this is less common than on leaves."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Stunted growth of new flushes in young trees under heavy infestation."
+    ],
+    "signs_microscopic_or_visible": [
+      "Tiny, translucent larvae may be visible inside the mine if held up to the light.",
+      "Small, white adult moths (approx. 4mm) with fringed wings may be seen at dusk or dawn near new growth."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "leaf_curl",
+      "condition_id": "lemon.disease.leaf_curl",
+      "key_differences": [
+        "Leaf curl causes uniform puckering or downward curling of the entire leaf blade, without any silvery mines.",
+        "Citrus leafminer damage is characterized by distinct, winding trails inside the leaf tissue.",
+        "Leaf curl is often caused by aphids (which may be visible) or specific diseases, not an internal larva."
+      ]
+    },
+    {
+      "condition_name": "bacterial_canker",
+      "condition_id": "lemon.disease.bacterial_canker",
+      "key_differences": [
+        "Bacterial canker produces raised, corky, tan-to-brown lesions, often with a water-soaked or yellow halo.",
+        "Citrus leafminer creates internal, serpentine mines that are silvery and not raised.",
+        "Canker lesions can appear on older leaves, stems, and fruit, while leafminer strongly prefers new leaf flushes."
+      ]
+    },
+    {
+      "condition_name": "nutritional_deficiency",
+      "condition_id": "lemon.nutritional_deficiency.generic",
+      "key_differences": [
+        "Nutritional deficiencies cause symmetrical chlorotic patterns, often related to leaf venation (e.g., 'inverted V' for magnesium deficiency).",
+        "Citrus leafminer damage is a highly asymmetrical, wandering trail with no relation to leaf veins.",
+        "Deficiency patterns affect multiple leaves of a similar age in a consistent way, whereas mines are randomly placed on individual leaves."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Avoid excessive pruning during peak moth activity to limit the production of vulnerable new flushes.",
+      "Do not apply high-nitrogen fertilizers that stimulate excessive, tender growth.",
+      "Encourage natural predators by avoiding broad-spectrum insecticides."
+    ],
+    "biological": [
+      "Conservation of parasitic wasps (e.g., Ageniaspis citricola) that attack leafminer larvae.",
+      "Introduction of generalist predators like lacewings and predatory beetles."
+    ],
+    "chemical": [
+      "Application of horticultural oils or neem oil can deter egg-laying by adult moths.",
+      "Use of systemic insecticides (e.g., imidacloprid) as a soil drench for young, non-bearing trees.",
+      "Foliar sprays with targeted insecticides (e.g., spinosad, abamectin) during new flush periods."
+    ],
+    "notes": "Management in mature, established trees is often unnecessary as the damage is primarily cosmetic. Control efforts should be focused on young, newly planted trees where heavy infestations can stunt growth and shaping."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/lemon/healthy.json b/diseases_knowledge_base/lemon/healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..485a7c21bfe05da07fb2e83e093031b8c8244b5e
--- /dev/null
+++ b/diseases_knowledge_base/lemon/healthy.json
@@ -0,0 +1,137 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "lemon.healthy.healthy",
+  "aliases": [
+    "normal lemon",
+    "unaffected lemon",
+    "asymptomatic lemon"
+  ],
+  "crop": {
+    "common_name": "lemon",
+    "scientific_name": "Citrus limon",
+    "family": "Rutaceae"
+  },
+  "condition": {
+    "common_name": "healthy",
+    "scientific_name": "",
+    "alt_names": [
+      "normal",
+      "unaffected",
+      "asymptomatic"
+    ],
+    "pathogen": {
+      "type": "none",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "healthy",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Optimal growing conditions",
+      "Adequate sunlight (6-8+ hours/day)",
+      "Proper irrigation and well-drained soil",
+      "Balanced nutrition"
+    ],
+    "temp_c_day": [
+      21,
+      30
+    ],
+    "temp_c_night": [
+      13,
+      21
+    ],
+    "relative_humidity_pct": [
+      50,
+      70
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Not applicable. Plant is either healthy or shows symptoms.",
+    "moderate": "Not applicable.",
+    "severe": "Not applicable.",
+    "notes": "For a 'healthy' state, severity is binary. The plant either shows no signs of disease, pest, or disorder (healthy), or it shows one or more symptoms (not healthy). Any visible symptom would disqualify the 'healthy' label."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uniformly deep green color, with new growth being a lighter green.",
+      "Glossy, waxy upper surface.",
+      "Lanceolate or ovate shape, typical for the cultivar, with smooth or slightly serrated margins.",
+      "Absence of spots, lesions, discoloration, or distortion.",
+      "Veins are a similar or slightly lighter green than the leaf blade.",
+      "Petioles are firm and may have small 'wings'."
+    ],
+    "stems": [
+      "Stems and branches are firm and turgid.",
+      "Color ranges from green on new growth to brown and woody on older branches.",
+      "Absence of cankers, gummosis (oozing), splits, or dieback."
+    ],
+    "fruit": [
+      "If present, fruit is firm with a bright, uniform yellow rind (when mature).",
+      "Fruit surface is free of blemishes, sunken spots, scabs, or signs of rot."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Vigorous, dense canopy of leaves.",
+      "Exhibits signs of new growth (flushes) during the growing season."
+    ],
+    "signs_microscopic_or_visible": [
+      "Absence of any fungal growth (e.g., mycelium, spores), bacterial ooze, insect frass, webbing, or other foreign structures."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Nutritional Deficiency",
+      "condition_id": "lemon.nutritional.nutritional_deficiency",
+      "key_differences": [
+        "Healthy leaves are uniformly green, while deficient leaves show distinct chlorosis patterns like yellowing between veins (interveinal), mottling, or pale new growth.",
+        "Healthy leaves are full-sized and well-shaped, whereas some deficiencies cause stunted, small, or narrow 'strappy' leaves.",
+        "Healthy plant growth is vigorous; deficiencies often result in reduced vigor and sparse foliage."
+      ]
+    },
+    {
+      "condition_name": "Citrus Leafminer",
+      "condition_id": "lemon.pest.citrus_leafminer",
+      "key_differences": [
+        "Healthy leaves have a smooth, undamaged surface. Leafminer damage appears as silvery, serpentine (winding) trails or 'mines' within the leaf tissue.",
+        "Healthy new leaves are flat and well-formed. Leafminer activity causes severe curling, twisting, and distortion of new, tender leaves.",
+        "Healthy leaves are clean, while mined leaves may contain visible dark specks of frass (insect excrement) inside the trails."
+      ]
+    },
+    {
+      "condition_name": "Bacterial Canker",
+      "condition_id": "lemon.bacterial.bacterial_canker",
+      "key_differences": [
+        "Healthy tissue is smooth and unblemished. Canker presents as distinct, raised, corky lesions on leaves, stems, and fruit.",
+        "Canker lesions on leaves are typically surrounded by a water-soaked margin and a bright yellow halo, both of which are absent on healthy leaves.",
+        "Healthy fruit has a clean rind, while canker causes dark, crater-like, scabby spots on the fruit surface."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Provide 6-8+ hours of direct sunlight daily.",
+      "Use well-draining soil mixes to prevent waterlogging and root issues.",
+      "Implement a balanced fertilization program tailored to citrus needs.",
+      "Water deeply and allow the top layer of soil to dry out between waterings.",
+      "Prune annually to remove dead wood and improve air circulation within the canopy."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "Management for a healthy plant focuses on preventative care and providing optimal growing conditions to minimize stress and prevent the onset of diseases and pests."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/lemon/leaf_curl.json b/diseases_knowledge_base/lemon/leaf_curl.json
new file mode 100644
index 0000000000000000000000000000000000000000..87bd4d24af3bfc5d13aac5c9e5fb6b270cdae467
--- /dev/null
+++ b/diseases_knowledge_base/lemon/leaf_curl.json
@@ -0,0 +1,135 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "lemon.unknown.leaf_curl",
+  "aliases": [
+    "citrus leaf curl",
+    "lemon leaf distortion",
+    "leaf puckering"
+  ],
+  "crop": {
+    "common_name": "lemon",
+    "scientific_name": "Citrus limon",
+    "family": "Rutaceae"
+  },
+  "condition": {
+    "common_name": "leaf curl",
+    "scientific_name": "",
+    "alt_names": [
+      "leaf distortion",
+      "leaf puckering"
+    ],
+    "pathogen": {
+      "type": "unknown",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [
+      "aphids",
+      "whiteflies"
+    ],
+    "dispersal": [
+      "insect movement",
+      "wind"
+    ],
+    "overwintering": [
+      "on alternate hosts",
+      "as eggs on woody tissue",
+      "in infected plant debris"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "rapid new growth (flush)",
+      "high aphid populations",
+      "mild, humid weather",
+      "drought stress"
+    ],
+    "temp_c_day": [
+      18,
+      28
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      60,
+      90
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaves on the plant are curled or distorted.",
+    "moderate": "11-40% of leaves are affected, with some stunting of new shoots.",
+    "severe": ">40% of leaves are curled, with significant stunting and reduced plant vigor.",
+    "notes": "Severity is assessed as the percentage of total leaves on the plant showing curling, twisting, or distortion symptoms. Symptoms are often most prominent on new growth."
+  },
+  "symptoms": {
+    "leaves": [
+      "Leaves curl downwards or upwards along the midrib.",
+      "Affected leaves appear thickened, puckered, or blistered.",
+      "Leaf color may be pale green or yellowish.",
+      "Young, developing leaves are the most commonly and severely affected.",
+      "Leaves may be smaller than normal size.",
+      "A sticky 'honeydew' or black sooty mold may be present on the leaf surface if caused by insects."
+    ],
+    "stems": [
+      "Internodes on new shoots may be shortened, leading to a 'rosette' appearance.",
+      "Affected shoots may appear stunted or twisted."
+    ],
+    "fruit": [
+      "Fruit production and quality may be reduced on severely affected branches."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Overall plant vigor is reduced, especially in young trees."
+    ],
+    "signs_microscopic_or_visible": [
+      "Small insects (e.g., aphids) may be visible in clusters on the underside of new leaves or on stems."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "citrus leafminer",
+      "condition_id": "lemon.pest.citrus_leafminer",
+      "key_differences": [
+        "Leafminer damage appears as silvery, serpentine 'tunnels' or 'mines' inside the leaf tissue, which are absent in leaf curl.",
+        "Leafminer causes a tight rolling or folding of the leaf margin over the mine, distinct from the broader puckering or cupping of leaf curl.",
+        "Small larvae can be seen inside the translucent mines upon close inspection."
+      ]
+    },
+    {
+      "condition_name": "nutritional deficiency",
+      "condition_id": "lemon.abiotic.nutritional_deficiency",
+      "key_differences": [
+        "Nutrient deficiencies often cause distinct, often symmetrical, chlorosis patterns (e.g., interveinal yellowing, mottled patterns) that may or may not be accompanied by curling.",
+        "Leaf distortion from deficiencies (e.g., zinc) often results in abnormally small, narrow leaves ('little leaf') rather than the puckering and blistering typical of pest/pathogen-induced curl.",
+        "Deficiency symptoms typically appear uniformly on either old or new growth, depending on the nutrient, whereas pest-induced curl is often patchily distributed on the newest flush."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Monitor new growth for sap-sucking insects like aphids, especially in spring.",
+      "Prune and destroy heavily affected shoots to reduce inoculum or pest load.",
+      "Maintain consistent watering and balanced nutrition to promote plant vigor and reduce stress.",
+      "Encourage natural predators like ladybugs and lacewings by avoiding broad-spectrum insecticides."
+    ],
+    "biological": [
+      "Introduce or conserve beneficial insects such as lacewings, lady beetles, and parasitic wasps."
+    ],
+    "chemical": [
+      "Apply insecticidal soaps or horticultural oils to control aphid populations, ensuring thorough coverage of leaf undersides.",
+      "If pest pressure is severe, consider targeted systemic or contact insecticides, following all label directions."
+    ],
+    "notes": "The primary management step is to identify the cause. If pests like aphids are present, focus on their control. If no pests are visible, evaluate for environmental stressors like drought or waterlogging."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/lemon/leaf_spot.json b/diseases_knowledge_base/lemon/leaf_spot.json
new file mode 100644
index 0000000000000000000000000000000000000000..23abc2f8b54ba08011b1a7c4771bb1df12f29f5b
--- /dev/null
+++ b/diseases_knowledge_base/lemon/leaf_spot.json
@@ -0,0 +1,147 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "lemon.disease_fungal.leaf_spot",
+  "aliases": [
+    "citrus greasy spot",
+    "alternaria brown spot",
+    "cercospora leaf spot"
+  ],
+  "crop": {
+    "common_name": "lemon",
+    "scientific_name": "Citrus limon",
+    "family": "Rutaceae"
+  },
+  "condition": {
+    "common_name": "leaf spot",
+    "scientific_name": "Mycosphaerella citri",
+    "alt_names": [
+      "Greasy Spot"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Capnodiales",
+        "family": "Mycosphaerellaceae",
+        "genus": "Mycosphaerella",
+        "species": "citri"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "wind-driven rain",
+      "water splash",
+      "airborne ascospores"
+    ],
+    "overwintering": [
+      "on fallen, decomposing leaves",
+      "in lesions on living leaves and twigs"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high humidity",
+      "prolonged leaf wetness",
+      "warm temperatures",
+      "dense canopy with poor air circulation"
+    ],
+    "temp_c_day": [
+      25,
+      32
+    ],
+    "temp_c_night": [
+      20,
+      25
+    ],
+    "relative_humidity_pct": [
+      90,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 8
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "< 5% of leaf area affected on symptomatic leaves.",
+    "moderate": "5-25% of leaf area affected, some premature leaf drop may be visible.",
+    "severe": "> 25% of leaf area affected, significant defoliation and yellowing.",
+    "notes": "Severity is assessed on the most affected leaves in the image. It reflects the total area covered by lesions and any associated chlorosis (yellowing)."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial symptoms appear as small, slightly raised, yellowish-brown blisters, typically on the underside of leaves.",
+      "Lesions darken over time to become dark brown or black and may feel greasy or waxy.",
+      "A corresponding yellow mottle or spot appears on the upper leaf surface directly above the lesion.",
+      "Lesions are often circular or irregular, ranging from 1-5 mm in diameter.",
+      "Multiple spots can coalesce to form larger, irregular blotches.",
+      "Infected leaves often show premature yellowing (chlorosis), especially around the spots.",
+      "Severe infections lead to significant premature leaf drop (defoliation), particularly of older leaves."
+    ],
+    "stems": [
+      "Stem lesions are not a typical symptom of most fungal leaf spots on lemon."
+    ],
+    "fruit": [
+      "Small, black, speckled blotches (greasy spot rind blotch) can appear on the fruit rind.",
+      "Fruit symptoms are generally less common and less severe than leaf symptoms."
+    ],
+    "roots": [
+      "No direct symptoms on roots."
+    ],
+    "whole_plant": [
+      "Reduced vigor and a thinning canopy due to defoliation in chronic or severe cases."
+    ],
+    "signs_microscopic_or_visible": [
+      "Under moist conditions, fungal structures (e.g., pseudothecia) may develop in fallen leaf litter, appearing as tiny black specks."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "bacterial canker",
+      "condition_id": "lemon.disease_bacterial.bacterial_canker",
+      "key_differences": [
+        "Canker lesions are distinctly raised, corky, and often have a crater-like center, unlike the flatter, greasy fungal spots.",
+        "Canker lesions are typically surrounded by a prominent, bright yellow halo and a water-soaked margin.",
+        "Bacterial canker also causes significant lesions on stems and twigs, which is rare for fungal leaf spot."
+      ]
+    },
+    {
+      "condition_name": "nutritional deficiency",
+      "condition_id": "lemon.disorder_abiotic.nutritional_deficiency",
+      "key_differences": [
+        "Deficiency symptoms create symmetrical patterns (e.g., interveinal chlorosis, inverted 'V'), not discrete, randomly scattered spots.",
+        "Fungal spots are distinct lesions, whereas deficiencies are patterns of discoloration in the leaf tissue itself.",
+        "Deficiency patterns often affect leaves of a certain age group uniformly (e.g., all new growth or all old growth)."
+      ]
+    },
+    {
+      "condition_name": "citrus leafminer",
+      "condition_id": "lemon.pest_insect.citrus_leafminer",
+      "key_differences": [
+        "Leafminer damage appears as silvery, winding, serpentine trails (tunnels) within the leaf.",
+        "Fungal leaf spot causes circular or irregular blotches, not linear trails.",
+        "Leafminer damage causes severe twisting and curling of young, tender leaves."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Prune the tree canopy to improve air circulation and promote faster drying of leaves.",
+      "Rake and destroy fallen leaves to reduce the overwintering fungal inoculum.",
+      "Use micro-sprinkler irrigation instead of overhead sprinklers to avoid wetting foliage.",
+      "Maintain optimal plant health with balanced fertilization to improve natural resistance."
+    ],
+    "biological": [
+      "The use of commercial biological control agents is not a primary management strategy for this disease."
+    ],
+    "chemical": [
+      "Apply preventative fungicides, such as copper-based products or petroleum oils, before or during high-risk periods.",
+      "Timing is critical; applications are often recommended during summer leaf flushes when leaves are most susceptible.",
+      "Always consult local agricultural extension services for recommended products, rates, and spray schedules."
+    ],
+    "notes": "An integrated approach combining cultural practices to reduce inoculum and environmental risk with timely chemical applications provides the most effective control."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/lemon/nutritional_deficiency.json b/diseases_knowledge_base/lemon/nutritional_deficiency.json
new file mode 100644
index 0000000000000000000000000000000000000000..06bfad1df457faaf6882c8030e4738bc7ea2ea16
--- /dev/null
+++ b/diseases_knowledge_base/lemon/nutritional_deficiency.json
@@ -0,0 +1,137 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "lemon.nutrient_deficiency.nutritional_deficiency",
+  "aliases": [
+    "chlorosis",
+    "nutrient imbalance",
+    "micronutrient deficiency",
+    "macronutrient deficiency"
+  ],
+  "crop": {
+    "common_name": "Lemon",
+    "scientific_name": "Citrus limon",
+    "family": "Rutaceae"
+  },
+  "condition": {
+    "common_name": "Nutritional Deficiency",
+    "scientific_name": null,
+    "alt_names": [
+      "Iron deficiency",
+      "Magnesium deficiency",
+      "Zinc deficiency",
+      "Nitrogen deficiency",
+      "Manganese deficiency"
+    ],
+    "pathogen": {
+      "type": "abiotic",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "nutrient_deficiency",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Incorrect soil pH (too high or too low)",
+      "Highly leached sandy soils",
+      "Waterlogged or compacted heavy clay soils",
+      "Drought conditions",
+      "Competition from weeds for nutrients",
+      "Improper fertilization"
+    ],
+    "temp_c_day": [],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area shows chlorosis or mottling. Patterns are visible but not widespread on the plant.",
+    "moderate": "11-40% of leaf area is affected. Chlorotic patterns are distinct and widespread on affected leaves; some stunting of new growth may be visible.",
+    "severe": ">40% of leaf area is affected. Leaves are mostly yellow or white, with potential necrotic spots, leaf drop, and shoot dieback.",
+    "notes": "Severity is assessed as the percentage of a symptomatic leaf's surface area showing characteristic chlorosis or mottling. The overall plant impact should also be considered."
+  },
+  "symptoms": {
+    "leaves": [
+      "Yellowing of tissue between green veins (interveinal chlorosis), especially on young leaves (Iron, Manganese, Zinc).",
+      "A distinct inverted 'V' shape of green at the leaf base, with the rest of the leaf yellowing, common on older leaves (Magnesium).",
+      "Uniform pale green to yellow discoloration over the entire leaf, often starting with older, lower leaves (Nitrogen).",
+      "Blotchy, irregular yellow areas between veins, creating a mottled appearance (Zinc, Manganese).",
+      "In severe cases, veins may also lose color, and the entire leaf turns yellow or almost white.",
+      "Affected young leaves may be smaller than normal (little leaf), narrow, or pointed (Zinc).",
+      "Necrotic (brown, dead) spots may develop in severely chlorotic areas.",
+      "Premature leaf drop."
+    ],
+    "stems": [
+      "Reduced internode length, leading to a 'rosette' appearance of leaves.",
+      "Twig dieback in severe, chronic cases."
+    ],
+    "fruit": [
+      "Fruit may be smaller in size, have a paler rind color, and lower juice content.",
+      "Some deficiencies can cause thick, puffy rinds."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Stunted or reduced overall growth.",
+      "Sparse, thin canopy due to reduced foliage and leaf drop."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Citrus Leafminer",
+      "condition_id": "lemon.pest_damage.citrus_leafminer",
+      "key_differences": [
+        "Leafminer damage consists of distinct, silvery, winding trails or tunnels inside the leaf.",
+        "Nutrient deficiencies cause color patterns (mottling, chlorosis), not physical tunnels.",
+        "A dark line of frass (insect excrement) is often visible inside leafminer tunnels.",
+        "Leafminer damage causes severe twisting and curling of new leaves, which is more extreme than most deficiency symptoms."
+      ]
+    },
+    {
+      "condition_name": "Senescence or Dry",
+      "condition_id": "lemon.other.senescence_or_dry",
+      "key_differences": [
+        "Senescence is a uniform, even yellowing of an entire older leaf before it drops, lacking the specific patterns (e.g., interveinal, inverted 'V') of many deficiencies.",
+        "Drought stress causes wilting and a dull, grayish-green look before leaves turn yellow or brown and crispy, often from the margins inward.",
+        "Deficiency patterns are typically symmetrical and related to the leaf's vein structure."
+      ]
+    },
+    {
+      "condition_name": "Leaf Spot",
+      "condition_id": "lemon.fungal_disease.leaf_spot",
+      "key_differences": [
+        "Leaf spots are discrete, defined lesions, often circular with a distinct border, unlike the diffuse mottling or chlorosis of a deficiency.",
+        "Leaf spot lesions may have a different colored center (e.g., tan or grey) and a dark border.",
+        "Nutrient deficiency symptoms are patterns of discoloration, not localized, necrotic spots."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Conduct regular soil tests and leaf tissue analysis to determine pH and specific nutrient levels.",
+      "Adjust soil pH to the optimal range for citrus (6.0-6.5) to maximize nutrient availability.",
+      "Apply a balanced, slow-release fertilizer formulated for citrus.",
+      "Incorporate organic matter such as compost to improve soil health and nutrient holding capacity.",
+      "Ensure proper irrigation to prevent drought stress, which can inhibit nutrient uptake."
+    ],
+    "biological": [],
+    "chemical": [
+      "For rapid correction, apply foliar sprays containing the deficient micronutrient (e.g., chelated iron, zinc sulfate, manganese sulfate).",
+      "Apply soil amendments or fertilizers to correct the specific deficiency identified by testing.",
+      "Use acidifying fertilizers (like ammonium sulfate) if soil pH is too high."
+    ],
+    "notes": "Foliar sprays offer a quick but temporary solution. Long-term management requires addressing the underlying soil issue (e.g., pH, nutrient imbalance)."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/lemon/senescence_or_dry.json b/diseases_knowledge_base/lemon/senescence_or_dry.json
new file mode 100644
index 0000000000000000000000000000000000000000..b5345366aa1b0f0d41bd87bfd5da0a620175cca5
--- /dev/null
+++ b/diseases_knowledge_base/lemon/senescence_or_dry.json
@@ -0,0 +1,126 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "lemon.physiological_symptom.senescence_or_dry",
+  "aliases": [
+    "drought stress",
+    "water stress",
+    "leaf drying",
+    "natural leaf aging"
+  ],
+  "crop": {
+    "common_name": "Lemon",
+    "scientific_name": "Citrus limon",
+    "family": "Rutaceae"
+  },
+  "condition": {
+    "common_name": "Senescence or Dry",
+    "scientific_name": null,
+    "alt_names": [
+      "Drought stress",
+      "Water stress",
+      "Natural leaf aging"
+    ],
+    "pathogen": {
+      "type": "abiotic",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "physiological_symptom",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Insufficient or inconsistent watering",
+      "Prolonged periods of drought",
+      "High ambient temperatures and low humidity",
+      "Poorly draining soil leading to root damage",
+      "Container-grown plants becoming root-bound"
+    ],
+    "temp_c_day": [
+      30,
+      45
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      0,
+      40
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of total leaf area shows yellowing or browning, primarily on older, lower leaves. No significant wilting.",
+    "moderate": "11-40% of total leaf area affected. Symptoms include noticeable leaf curling, wilting, and crisping of margins. Some premature leaf drop may occur.",
+    "severe": ">40% of total leaf area is brown, dry, and brittle. Widespread wilting of stems and significant leaf drop, leading to a sparse canopy.",
+    "notes": "Severity is assessed as the percentage of the plant's total foliage showing symptoms. The degree of wilting and leaf drop are also key indicators."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uniform yellowing (chlorosis) that lacks a distinct pattern, often starting on older leaves.",
+      "Leaf margins and tips turn brown, become brittle, and feel dry or crispy.",
+      "Leaves appear dull, wilted, or curled downwards.",
+      "In severe cases, the entire leaf turns brown and desiccated.",
+      "Premature shedding of leaves, particularly older ones."
+    ],
+    "stems": [
+      "Young, succulent stems may droop or wilt.",
+      "In prolonged, severe cases, twig and branch dieback can occur."
+    ],
+    "fruit": [
+      "Fruit may fail to develop to full size.",
+      "Premature fruit drop can occur under severe stress."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "The entire plant appears droopy, wilted, and lacks vigor.",
+      "The plant canopy may look thin or sparse due to significant leaf loss."
+    ],
+    "signs_microscopic_or_visible": [
+      "Absence of any fungal structures (e.g., pustules, mycelium), bacterial ooze, or insect trails."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Nutritional Deficiency",
+      "condition_id": "lemon.physiological_symptom.nutritional_deficiency",
+      "key_differences": [
+        "Nutrient deficiencies often create distinct patterns like interveinal chlorosis (green veins, yellow tissue) or specific yellowing of new vs. old leaves, while drought stress causes a more uniform yellowing or marginal browning.",
+        "Leaves affected by drought stress are typically wilted and curled, which is less common for most nutrient deficiencies.",
+        "Drought stress is often accompanied by a dry soil environment, whereas nutrient issues can occur even with proper watering."
+      ]
+    },
+    {
+      "condition_name": "Citrus Leafminer",
+      "condition_id": "lemon.pest_damage.citrus_leafminer",
+      "key_differences": [
+        "Leafminer damage presents as silvery, serpentine trails (mines) within the leaf tissue; senescence does not create trails.",
+        "Leafminer damage causes severe twisting and distortion of new, young growth, whereas drought stress typically affects older leaves first with wilting and browning.",
+        "Small black specks of frass (insect excrement) may be visible within the leafminer trails."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Provide deep, consistent watering, allowing the top layer of soil to dry out between sessions.",
+      "Apply a 2-3 inch layer of organic mulch around the base of the plant to conserve soil moisture and regulate temperature.",
+      "Ensure the plant is in well-draining soil to prevent root rot, which can impair water uptake.",
+      "For potted plants, re-pot into a larger container if they become root-bound."
+    ],
+    "biological": [],
+    "chemical": [
+      "In commercial settings, anti-transpirants may be applied before heatwaves to reduce water loss from leaves."
+    ],
+    "notes": "The primary goal is to identify and correct the underlying cause of water stress, whether it is insufficient water, poor root health, or excessive water loss."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/litchi/black_spot.json b/diseases_knowledge_base/litchi/black_spot.json
new file mode 100644
index 0000000000000000000000000000000000000000..5c6949d8a85c3dd569c7b1c3410c84147d79abb3
--- /dev/null
+++ b/diseases_knowledge_base/litchi/black_spot.json
@@ -0,0 +1,149 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "litchi.disease_fungal.black_spot",
+  "aliases": [
+    "anthracnose",
+    "pepper spot"
+  ],
+  "crop": {
+    "common_name": "litchi",
+    "scientific_name": "Litchi chinensis",
+    "family": "Sapindaceae"
+  },
+  "condition": {
+    "common_name": "black spot",
+    "scientific_name": "Colletotrichum gloeosporioides",
+    "alt_names": [
+      "anthracnose"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Sordariomycetes",
+        "order": "Glomerellales",
+        "family": "Glomerellaceae",
+        "genus": "Colletotrichum",
+        "species": "gloeosporioides"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [
+      "insects (e.g., fruit flies, mites)"
+    ],
+    "dispersal": [
+      "rain splash",
+      "wind-driven rain",
+      "irrigation water",
+      "contaminated pruning tools"
+    ],
+    "overwintering": [
+      "infected twigs and branches",
+      "mummified fruit",
+      "leaf debris on the orchard floor"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high humidity",
+      "prolonged leaf and fruit wetness",
+      "frequent rainfall during flowering and fruit development",
+      "poor air circulation due to dense canopy",
+      "temperatures between 25-30\u00b0C"
+    ],
+    "temp_c_day": [
+      25,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      90,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 12
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "A few small, isolated black spots (<5% of fruit surface area), not coalescing. Fruit is likely still marketable.",
+    "moderate": "Multiple spots, some beginning to coalesce, covering 5-25% of the fruit surface. Minor skin cracking may be present.",
+    "severe": "Large, coalesced black lesions covering >25% of the fruit surface, often with significant skin cracking, secondary rot, and visible spore masses.",
+    "notes": "Severity is primarily assessed on fruit due to economic impact. A single large lesion can make a fruit unmarketable. On leaves, percent area can be used as a proxy."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, circular, dark brown to black spots, sometimes surrounded by a yellow halo.",
+      "Lesions can enlarge and merge, forming irregular necrotic patches.",
+      "In older lesions, the necrotic center may dry and fall out, creating a 'shot-hole' effect.",
+      "Symptoms are often more prevalent on mature or older leaves."
+    ],
+    "stems": [
+      "Elongated, sunken, dark brown to black cankers can form on young twigs.",
+      "Severe cankers can girdle the stem, leading to dieback of the branch tip."
+    ],
+    "fruit": [
+      "Initial symptoms are small, water-soaked, brownish spots on the fruit skin (pericarp).",
+      "Spots enlarge, turn black, become slightly sunken, and are typically circular.",
+      "Under humid conditions, pinkish-orange, gelatinous spore masses (acervuli) may appear in the center of the spots.",
+      "Lesions can coalesce to cover large areas, causing the skin to crack.",
+      "The infection can penetrate the flesh, causing a bitter taste and fruit rot."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Reduced fruit quality and marketability is the primary impact.",
+      "Severe infections can lead to premature fruit drop."
+    ],
+    "signs_microscopic_or_visible": [
+      "Pink or salmon-colored gelatinous spore masses (acervuli) emerging from the center of lesions, especially on fruit under high humidity."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "pest damage",
+      "condition_id": "litchi.pest_damage.unknown",
+      "key_differences": [
+        "Pest damage often involves physical holes, chewing marks, or tunnels, which are absent in black spot.",
+        "The presence of insect frass (excrement) or the insect itself indicates a pest issue.",
+        "Pest damage patterns are often irregular or trail-like, unlike the typically circular fungal lesions.",
+        "Some pests cause stippling (tiny discolored dots) rather than distinct, sunken black spots."
+      ]
+    },
+    {
+      "condition_name": "burned_leaf",
+      "condition_id": "litchi.abiotic.burned_leaf",
+      "key_differences": [
+        "Sunburn or chemical burn typically appears as bleached, tan, or papery-textured patches, not distinct black spots.",
+        "Burn damage is usually located on the most exposed plant parts and lacks the defined, circular margins of black spot lesions.",
+        "Burned areas are not sunken and will not produce the pinkish spore masses seen in black spot under humid conditions."
+      ]
+    },
+    {
+      "condition_name": "red_rust_disease",
+      "condition_id": "litchi.disease_algal.red_rust_disease",
+      "key_differences": [
+        "Red rust spots are raised and have a velvety, orange-red to reddish-brown texture.",
+        "Black spot lesions are sunken and black or dark brown.",
+        "Red rust does not cause fruit rot or produce pink spore masses."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Prune trees annually to open the canopy, improving air circulation and light penetration.",
+      "Remove and destroy infected plant material, including fallen fruit, leaves, and pruned branches.",
+      "Use drip or micro-sprinkler irrigation instead of overhead sprinklers to minimize fruit and leaf wetness.",
+      "Harvest fruit carefully to avoid wounding, which can be an entry point for the pathogen post-harvest."
+    ],
+    "biological": [
+      "Applications of products containing *Bacillus subtilis* or *Trichoderma* spp. can act as antagonists to the pathogen."
+    ],
+    "chemical": [
+      "Apply preventative fungicides during susceptible periods, such as from flowering to fruit maturation.",
+      "Rotate fungicides with different modes of action (e.g., mancozeb, copper-based compounds, strobilurins) to prevent resistance.",
+      "Post-harvest fungicidal dips can reduce storage rot."
+    ],
+    "notes": "An integrated management strategy that combines cultural practices with timely fungicide applications is most effective for controlling black spot."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/litchi/burned_leaf.json b/diseases_knowledge_base/litchi/burned_leaf.json
new file mode 100644
index 0000000000000000000000000000000000000000..49e7be511576d8a13b8be349865816177b332549
--- /dev/null
+++ b/diseases_knowledge_base/litchi/burned_leaf.json
@@ -0,0 +1,135 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "litchi.physiological_symptom.burned_leaf",
+  "aliases": [
+    "leaf scorch",
+    "sunburn",
+    "tip burn",
+    "leaf tip burn"
+  ],
+  "crop": {
+    "common_name": "litchi",
+    "scientific_name": "Litchi chinensis",
+    "family": "Sapindaceae"
+  },
+  "condition": {
+    "common_name": "Burned Leaf",
+    "scientific_name": null,
+    "alt_names": [
+      "Leaf scorch",
+      "Sunburn",
+      "Tip burn"
+    ],
+    "pathogen": {
+      "type": "abiotic",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "physiological_symptom",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High solar radiation",
+      "Sudden exposure of shaded leaves to direct sun",
+      "Drought stress and inadequate irrigation",
+      "High ambient temperatures",
+      "Low relative humidity",
+      "Saline soil or irrigation water",
+      "Nutrient imbalances (e.g., potassium deficiency)"
+    ],
+    "temp_c_day": [
+      35,
+      45
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      20,
+      50
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area affected, typically confined to the tip or margin.",
+    "moderate": "11-40% of leaf area affected, with necrotic areas extending further into the leaf blade.",
+    "severe": ">40% of leaf area affected, extensive necrosis, leaf curling, and potential defoliation.",
+    "notes": "Severity is estimated as the percentage of a single leaf's surface showing brown, necrotic, 'burned' tissue. Assessment should consider the average condition of several affected leaves on the plant."
+  },
+  "symptoms": {
+    "leaves": [
+      "Necrotic, brown, or tan patches appear on leaf tips and margins.",
+      "Affected tissue is dry, brittle, and has a 'scorched' appearance.",
+      "A distinct, often dark brown or reddish-brown line separates the necrotic tissue from healthy green tissue.",
+      "Damage is most prominent on leaves directly exposed to intense sunlight.",
+      "In severe cases, the entire leaf may turn brown, curl inward, and die.",
+      "Symptoms are more common on new, tender flushes of growth.",
+      "The burned area is typically uniform in color, lacking fungal structures or concentric rings.",
+      "The transition from dead to healthy tissue is abrupt."
+    ],
+    "stems": [],
+    "fruit": [],
+    "roots": [],
+    "whole_plant": [
+      "Symptoms are often localized to one side of the plant (the sun-facing side).",
+      "Chronically affected plants may show stunted growth."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "leaf_blight",
+      "condition_id": "litchi.fungal_disease.leaf_blight",
+      "key_differences": [
+        "Leaf blight lesions often have a 'target-like' appearance with concentric rings, which is absent in sunburn.",
+        "Blight lesions may have a water-soaked or yellowish halo around the necrotic spot.",
+        "Tiny black dots (pycnidia or acervuli) may be visible within blight lesions, especially with magnification.",
+        "Blight can occur on any part of the leaf, not just sun-exposed tips and margins."
+      ]
+    },
+    {
+      "condition_name": "senescence_or_dry",
+      "condition_id": "litchi.physiological_symptom.senescence_or_dry",
+      "key_differences": [
+        "Senescence involves a more gradual and uniform yellowing (chlorosis) of the entire leaf before browning, typically starting with the oldest, lowest leaves.",
+        "Burned leaves show an abrupt transition from green to brown/necrotic tissue, often on leaves of any age.",
+        "General water stress (dryness) causes wilting of leaves before they turn brown and crispy, often affecting the whole plant."
+      ]
+    },
+    {
+      "condition_name": "red_rust_disease",
+      "condition_id": "litchi.algal_disease.red_rust_disease",
+      "key_differences": [
+        "Red rust appears as distinct, raised, velvety spots with an orange to reddish-brown color.",
+        "Burned leaf areas are not raised or velvety; they are necrotic, sunken, and integrated into the leaf tissue.",
+        "Red rust spots can appear anywhere on the leaf surface and are not confined to sun-exposed areas like tips and margins."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Provide adequate and consistent irrigation to prevent drought stress.",
+      "Use shade cloth (e.g., 30-50% shade) during periods of intense heat and sun, especially for young trees.",
+      "Apply a layer of organic mulch to retain soil moisture and moderate root temperature.",
+      "Avoid excessive nitrogen fertilization, which promotes tender growth susceptible to burning.",
+      "Ensure proper soil drainage to prevent salt accumulation."
+    ],
+    "biological": [],
+    "chemical": [
+      "Application of kaolin clay-based products can form a reflective white film on leaves to reduce heat load and sun damage.",
+      "Anti-transpirant sprays can help reduce water loss from leaves during heat waves."
+    ],
+    "notes": "Management is primarily preventative and focuses on mitigating environmental stressors that cause the burn."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/litchi/fungal_stripe_damage.json b/diseases_knowledge_base/litchi/fungal_stripe_damage.json
new file mode 100644
index 0000000000000000000000000000000000000000..6657e4ae6b69d483c6d2a4492bf0b46775f0c34f
--- /dev/null
+++ b/diseases_knowledge_base/litchi/fungal_stripe_damage.json
@@ -0,0 +1,137 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "litchi.unknown.fungal_stripe_damage",
+  "aliases": [
+    "Litchi leaf stripe",
+    "Fungal leaf stripe"
+  ],
+  "crop": {
+    "common_name": "Litchi",
+    "scientific_name": "Litchi chinensis",
+    "family": "Sapindaceae"
+  },
+  "condition": {
+    "common_name": "Fungal stripe damage",
+    "scientific_name": "",
+    "alt_names": [
+      "Leaf stripe disease"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "Wind",
+      "Rain splash",
+      "Contaminated pruning tools"
+    ],
+    "overwintering": [
+      "Infected leaf debris on the ground",
+      "On persistent infected leaves on the tree"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High humidity (>85%)",
+      "Prolonged periods of leaf wetness",
+      "Poor air circulation within the canopy",
+      "Dense plant spacing"
+    ],
+    "temp_c_day": [
+      20,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 6
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of the total leaf area is affected by stripes.",
+    "moderate": "11-40% of the leaf area is affected, with some stripes beginning to merge.",
+    "severe": ">40% of the leaf area is affected, stripes have coalesced into large necrotic patches, and premature leaf drop may be occurring.",
+    "notes": "Severity is assessed visually on the most affected leaves, estimating the proportion of the leaf's surface area covered by the characteristic stripes and any associated necrosis or chlorosis."
+  },
+  "symptoms": {
+    "leaves": [
+      "Elongated, linear lesions or stripes that run parallel to the secondary leaf veins.",
+      "Stripes are initially light brown or tan and darken to dark brown or black as they mature.",
+      "Lesions often have a slightly sunken or depressed appearance.",
+      "A narrow, yellowish halo may be visible around the edges of newer stripes.",
+      "Multiple discrete stripes can occur on a single leaflet.",
+      "In advanced stages, stripes may merge (coalesce) to form large, irregular necrotic areas.",
+      "The tissue within the stripes becomes dry, brittle, and papery.",
+      "Severe infections can lead to premature shedding of affected leaves."
+    ],
+    "stems": [],
+    "fruit": [],
+    "roots": [],
+    "whole_plant": [
+      "Reduced plant vigor and photosynthetic capacity in cases of severe defoliation."
+    ],
+    "signs_microscopic_or_visible": [
+      "Under magnification and high humidity, tiny black dots (fungal fruiting bodies like pycnidia or acervuli) may be visible within the necrotic stripes."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Leaf Blight",
+      "condition_id": "litchi.fungal.leaf_blight",
+      "key_differences": [
+        "Shape: Leaf blight causes large, irregular blotches, not long, narrow stripes.",
+        "Location: Blight often starts at the leaf tip or margins and spreads inward, whereas stripes can appear anywhere on the leaf blade.",
+        "Pattern: Blight lesions may exhibit concentric rings (a target-like appearance), which is absent in fungal stripe damage."
+      ]
+    },
+    {
+      "condition_name": "Pest Damage",
+      "condition_id": "litchi.pest.pest_damage",
+      "key_differences": [
+        "Leaf miner damage appears as winding, serpentine tunnels within the leaf, not straight stripes.",
+        "Damage from chewing insects results in holes or ragged leaf edges, not necrotic stripes.",
+        "Sucking insects cause stippling (tiny discolored dots) or chlorotic spots, which are distinct from the elongated lesions of stripe damage."
+      ]
+    },
+    {
+      "condition_name": "Senescence or Dry",
+      "condition_id": "litchi.abiotic.senescence_or_dry",
+      "key_differences": [
+        "Pattern: Drying or senescence often starts uniformly at the tip or edges (marginal necrosis) and progresses inward, lacking the distinct, parallel-vein stripe pattern.",
+        "Color: Senescence is typically a uniform yellowing (chlorosis) or browning, without the distinct dark brown/black color of the fungal stripes.",
+        "Distribution: Abiotic stress often affects older, lower leaves more symmetrically, while fungal stripes can appear more randomly on leaves of various ages."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Prune trees to improve air circulation and sunlight penetration into the canopy.",
+      "Avoid overhead irrigation; use drip or micro-sprinkler irrigation to keep foliage dry.",
+      "Rake up and destroy fallen leaves and debris to reduce fungal inoculum.",
+      "Maintain balanced plant nutrition to improve overall tree health and resilience."
+    ],
+    "biological": [
+      "Application of bio-fungicides containing *Bacillus subtilis* or *Trichoderma* spp. may provide some preventative benefit."
+    ],
+    "chemical": [
+      "Apply protective fungicides (e.g., copper-based, mancozeb) prior to or at the first sign of disease, especially during warm, wet weather.",
+      "For systemic action, fungicides from the strobilurin or triazole groups can be effective, but rotation is crucial to prevent resistance.",
+      "Always follow product label instructions for application rates, timing, and pre-harvest intervals."
+    ],
+    "notes": "An integrated approach combining cultural practices with chemical control when necessary is the most effective strategy. Focus on prevention."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/litchi/healthy.json b/diseases_knowledge_base/litchi/healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..fc39dd428edc7921c4ca9259534a23cd2a2f7d80
--- /dev/null
+++ b/diseases_knowledge_base/litchi/healthy.json
@@ -0,0 +1,135 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "litchi.healthy.healthy",
+  "aliases": [
+    "normal",
+    "asymptomatic",
+    "undiseased"
+  ],
+  "crop": {
+    "common_name": "litchi",
+    "scientific_name": "Litchi chinensis",
+    "family": "Sapindaceae"
+  },
+  "condition": {
+    "common_name": "Healthy",
+    "scientific_name": null,
+    "alt_names": [
+      "Normal Growth"
+    ],
+    "pathogen": {
+      "type": "none",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "healthy",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Optimal temperature and humidity",
+      "Adequate sunlight and soil moisture",
+      "Balanced soil nutrition",
+      "Good air circulation"
+    ],
+    "temp_c_day": [
+      20,
+      33
+    ],
+    "temp_c_night": [
+      15,
+      25
+    ],
+    "relative_humidity_pct": [
+      60,
+      85
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "< 1% of leaf area shows any form of blemish or discoloration.",
+    "moderate": "1-5% of leaf area shows minor, non-pathogenic blemishes (e.g., minor physical scuffing).",
+    "severe": "> 5% of leaf area shows blemishes, indicating a likely transition to a diseased or disordered state.",
+    "notes": "This rubric quantifies the 'healthy' state by measuring the absence of symptoms. A 'severe' rating under this rubric means the plant should be re-classified under a specific disease or disorder."
+  },
+  "symptoms": {
+    "leaves": [
+      "Mature leaves are uniformly dark green with a glossy upper surface.",
+      "New flush leaves are reddish-bronze or light green, and are tender.",
+      "Leaves are turgid, firm, and well-formed with smooth margins.",
+      "Leaf shape is typically lanceolate to elliptical.",
+      "No spots, lesions, mosaics, pustules, or necrosis are visible.",
+      "No signs of yellowing (chlorosis) or browning.",
+      "No visible insect colonies, webbing, or frass."
+    ],
+    "stems": [
+      "Stems and branches are woody, with greyish-brown bark.",
+      "No cankers, galls, cracks, or unusual swellings.",
+      "No signs of dieback on young or old shoots."
+    ],
+    "fruit": [
+      "Fruit, when present, has a uniformly red, pink, or yellow-green skin (depending on cultivar and maturity).",
+      "Fruit skin is intact, bumpy (tuberculate), and free from cracks, spots, or rot.",
+      "Fruit is firm and well-sized for the cultivar."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Exhibits vigorous growth with a dense, well-developed canopy.",
+      "Shows normal flowering and fruit set in season."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "senescence_or_dry",
+      "condition_id": "litchi.abiotic.senescence_or_dry",
+      "key_differences": [
+        "Healthy leaves are uniformly green and turgid, while senescent leaves are uniformly yellow or brown.",
+        "Senescent leaves are often dry, brittle, and may curl, whereas healthy leaves are flexible and firm.",
+        "Senescence typically affects the oldest leaves first, while healthy leaves are present across the plant's age gradient."
+      ]
+    },
+    {
+      "condition_name": "burned_leaf",
+      "condition_id": "litchi.abiotic.burned_leaf",
+      "key_differences": [
+        "Healthy leaves have even coloration, while burned leaves have distinct, irregularly shaped brown or black necrotic patches.",
+        "Burn damage is often concentrated on leaf margins, tips, or areas most exposed to the sun.",
+        "The transition from healthy to necrotic tissue on a burned leaf is often sharp and clearly defined."
+      ]
+    },
+    {
+      "condition_name": "yellow_mosaic_virus",
+      "condition_id": "litchi.virus.yellow_mosaic_virus",
+      "key_differences": [
+        "Healthy leaves are a solid, uniform green.",
+        "Virus-infected leaves show a distinct pattern of yellow and green patches (mosaic, mottle, or blotches).",
+        "The yellow patterns on infected leaves often contrast sharply with the green tissue and may be associated with veins.",
+        "Infected leaves may also be stunted or deformed, which is not seen in healthy leaves."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Provide balanced fertilization based on soil tests.",
+      "Ensure proper irrigation to avoid water stress.",
+      "Prune to maintain good air circulation through the canopy.",
+      "Select a planting site with adequate sunlight and well-drained soil."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "Management for a healthy plant focuses on preventative care and maintaining optimal growing conditions to prevent the onset of diseases and disorders."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/litchi/leaf_blight.json b/diseases_knowledge_base/litchi/leaf_blight.json
new file mode 100644
index 0000000000000000000000000000000000000000..133cac9fc68c626fb649144176a4c8458ef1bca8
--- /dev/null
+++ b/diseases_knowledge_base/litchi/leaf_blight.json
@@ -0,0 +1,147 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "litchi.disease_fungal.leaf_blight",
+  "aliases": [
+    "litchi anthracnose leaf blight",
+    "pestalotiopsis leaf blight"
+  ],
+  "crop": {
+    "common_name": "litchi",
+    "scientific_name": "Litchi chinensis",
+    "family": "Sapindaceae"
+  },
+  "condition": {
+    "common_name": "leaf blight",
+    "scientific_name": "Colletotrichum gloeosporioides, Pestalotiopsis spp.",
+    "alt_names": [
+      "anthracnose",
+      "leaf spot"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Sordariomycetes",
+        "order": "Glomerellales",
+        "family": "Glomerellaceae",
+        "genus": "Colletotrichum",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "rain splash",
+      "wind-driven rain",
+      "contaminated pruning tools",
+      "infected nursery stock"
+    ],
+    "overwintering": [
+      "infected plant debris on the ground",
+      "cankers on twigs and branches",
+      "mummified fruit"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "prolonged leaf wetness (>8 hours)",
+      "high relative humidity",
+      "warm temperatures",
+      "dense canopy with poor air circulation",
+      "new, tender leaf flushes"
+    ],
+    "temp_c_day": [
+      24,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 8
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of the leaf surface is covered in lesions. Spots are few and mostly discrete.",
+    "moderate": "11-40% of the leaf surface is affected. Multiple lesions are present, some may be coalescing.",
+    "severe": ">40% of the leaf surface is necrotic. Large blighted areas are present, often leading to leaf distortion and defoliation.",
+    "notes": "Severity is estimated based on the percentage of symptomatic leaf area on a representative leaf or branch. It reflects the total area covered by lesions, not just the number of lesions."
+  },
+  "symptoms": {
+    "leaves": [
+      "Begins as small, circular or irregular, water-soaked spots on young leaves.",
+      "Spots enlarge to become tan, light brown, or dark brown necrotic lesions.",
+      "Lesions often develop a distinct, dark brown or purplish-black border.",
+      "A yellow halo may surround the necrotic spot.",
+      "Multiple lesions frequently merge (coalesce) to form large, irregular dead patches, creating a 'blighted' appearance.",
+      "The center of older lesions may become gray or tan and drop out, creating a 'shot-hole' effect.",
+      "Severely infected leaves become twisted, curled, and may fall off prematurely.",
+      "Under humid conditions, tiny pinkish-orange spore masses (acervuli) may be visible in concentric rings within the lesions."
+    ],
+    "stems": [
+      "On young, green twigs, can cause elongated, sunken, dark-colored lesions (cankers).",
+      "Severe infection can lead to twig dieback from the tip downwards."
+    ],
+    "fruit": [
+      "Can infect flowers, causing blossom blight and poor fruit set.",
+      "On fruit, appears as small, dark, sunken spots that can enlarge and lead to rot (anthracnose)."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "In severe cases, the tree shows significant defoliation, reduced vigor, and a sparse canopy."
+    ],
+    "signs_microscopic_or_visible": [
+      "Pinkish to orange gelatinous spore masses (acervuli) emerging from the center of lesions during wet weather."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "burned_leaf",
+      "condition_id": "litchi.abiotic.burned_leaf",
+      "key_differences": [
+        "Burn damage is typically confined to leaf tips and margins, appearing as uniform tan/brown necrosis.",
+        "Leaf blight lesions are distinct spots that can appear anywhere on the leaf blade, not just the edges.",
+        "Burned areas lack the characteristic dark borders, yellow halos, or fungal spore masses seen in blight.",
+        "Burn damage often follows a pattern related to exposure (e.g., sun-facing side of the tree), while blight is driven by moisture."
+      ]
+    },
+    {
+      "condition_name": "senescence_or_dry",
+      "condition_id": "litchi.abiotic.senescence_or_dry",
+      "key_differences": [
+        "Senescence involves uniform yellowing (chlorosis) of the entire leaf, usually starting with older, lower leaves.",
+        "Drought stress causes wilting followed by browning from the tip/margins inward, without discrete spots.",
+        "Leaf blight presents as localized, well-defined necrotic spots or patches, not a gradual, uniform discoloration of the whole leaf."
+      ]
+    },
+    {
+      "condition_name": "red_rust_disease",
+      "condition_id": "litchi.disease_algal.red_rust_disease",
+      "key_differences": [
+        "Red rust spots are distinctly raised, velvety in texture, and orange to reddish-brown in color.",
+        "Leaf blight lesions are sunken or flat, necrotic (tan to black), and not velvety.",
+        "Red rust spots tend to remain as small, discrete circular patches, whereas blight lesions can expand and coalesce into large, irregular shapes."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Prune trees annually to remove dead wood and open the canopy for better air circulation and light penetration.",
+      "Collect and destroy fallen leaves and pruned branches to reduce pathogen inoculum.",
+      "Use drip or micro-sprinkler irrigation instead of overhead sprinklers to keep foliage dry.",
+      "Maintain balanced plant nutrition to promote tree vigor and resistance."
+    ],
+    "biological": [
+      "Applications of products containing *Bacillus subtilis* or *Trichoderma* spp. may help suppress the pathogen as part of an integrated management program."
+    ],
+    "chemical": [
+      "Apply protective fungicides (e.g., copper-based products, mancozeb) prior to periods of high risk (e.g., rainy season, new leaf flush).",
+      "Systemic fungicides may be used for curative action but should be rotated to prevent resistance."
+    ],
+    "notes": "Consult local agricultural extension services for recommended fungicides and optimal application timing for your region."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/litchi/pest_damage.json b/diseases_knowledge_base/litchi/pest_damage.json
new file mode 100644
index 0000000000000000000000000000000000000000..79ed4db78cadfc665a39379546bd0b9221182a70
--- /dev/null
+++ b/diseases_knowledge_base/litchi/pest_damage.json
@@ -0,0 +1,155 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "litchi.unknown.pest_damage",
+  "aliases": [
+    "insect damage on litchi",
+    "litchi mite damage",
+    "litchi pest infestation"
+  ],
+  "crop": {
+    "common_name": "Litchi",
+    "scientific_name": "Litchi chinensis",
+    "family": "Sapindaceae"
+  },
+  "condition": {
+    "common_name": "Pest Damage",
+    "scientific_name": "Varies by specific pest",
+    "alt_names": [
+      "Insect damage",
+      "Mite damage",
+      "Arthropod damage"
+    ],
+    "pathogen": {
+      "type": "arthropod",
+      "taxonomy": {
+        "kingdom": "Animalia",
+        "phylum": "Arthropoda",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [
+      "Adult or larval stages of insects",
+      "Mites"
+    ],
+    "dispersal": [
+      "Flight of adult insects",
+      "Wind dispersal (e.g., mites)",
+      "Movement of infested plant material",
+      "Rain splash"
+    ],
+    "overwintering": [
+      "As eggs, larvae, pupae, or adults in bark crevices, leaf litter, or soil"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Presence of new, tender flush growth",
+      "Warm and humid conditions",
+      "Lack of natural predators",
+      "Monoculture planting"
+    ],
+    "temp_c_day": [
+      22,
+      35
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      60,
+      90
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "< 10% of leaf surface area shows feeding damage (chewing, stippling, mining).",
+    "moderate": "10-30% of leaf surface area is affected; some leaf curling or distortion may be present.",
+    "severe": "> 30% of leaf surface area is affected; significant defoliation, webbing, or branch dieback is visible.",
+    "notes": "Assessment should be based on the average damage across the entire plant or a representative branch. Include physical removal of tissue, discoloration from feeding, and distortion."
+  },
+  "symptoms": {
+    "leaves": [
+      "Irregular holes or chewed margins from feeding insects.",
+      "Skeletonization, where only leaf veins remain, creating a lacy appearance.",
+      "Tiny yellow or white dots (stippling) on the leaf surface, caused by piercing-sucking insects or mites.",
+      "Leaves appear bronzed or silvery due to heavy stippling.",
+      "Leaf curling, twisting, or other distortions.",
+      "Presence of thin, silky webbing, particularly on the underside of leaves (indicative of spider mites).",
+      "Shiny, sticky substance (honeydew) on leaves, often leading to sooty mold growth.",
+      "Winding trails or tunnels within the leaf (leafminers)."
+    ],
+    "stems": [
+      "Small holes in bark from boring insects.",
+      "Sawdust-like frass (insect excrement) pushed out of borer holes.",
+      "Presence of small, immobile bumps (scale insects) on twigs and stems."
+    ],
+    "fruit": [
+      "Superficial scarring, blemishes, or scabs on the fruit skin.",
+      "Boring holes, sometimes with frass, indicating internal feeding.",
+      "Premature fruit drop."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Stunted growth or reduced vigor.",
+      "Dieback of twigs and branches in severe infestations."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible insects, caterpillars (larvae), or mites (may require a hand lens).",
+      "Clusters of eggs, often on the underside of leaves.",
+      "Webbing, frass, honeydew, or cast skins of insects."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Leaf Blight",
+      "condition_id": "litchi.fungal.leaf_blight",
+      "key_differences": [
+        "Leaf blight causes distinct necrotic lesions, often with a yellow halo or concentric rings, not physically removed tissue.",
+        "Blight lesions tend to spread and coalesce into large, dead patches, whereas chewing damage is typically holes or skeletonization.",
+        "Pest damage may be accompanied by visible signs like insects, webbing, or frass, which are absent in fungal blight."
+      ]
+    },
+    {
+      "condition_name": "Burned Leaf",
+      "condition_id": "litchi.abiotic.burned_leaf",
+      "key_differences": [
+        "Burned areas (sunscald or chemical burn) are typically large, continuous patches of bleached or brown tissue, not discrete holes or stippling.",
+        "Burn damage often follows a pattern related to exposure, like on the upper leaf surface or leaf margins facing the sun.",
+        "Pest damage like stippling consists of thousands of tiny dots, while burn damage is a solid area of discoloration."
+      ]
+    },
+    {
+      "condition_name": "White Spot",
+      "condition_id": "litchi.fungal.white_spot",
+      "key_differences": [
+        "White spot consists of discrete, often circular, whitish to grey lesions with a defined border.",
+        "Pest damage involves removal of tissue (holes) or discoloration from feeding (stippling), not well-defined fungal spots.",
+        "Mite stippling can look whitish but is a collection of tiny pinpricks, not a solid lesion."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Regularly monitor plants for early signs of pests.",
+      "Prune and destroy heavily infested branches and leaves.",
+      "Remove weeds and plant debris that can harbor pests.",
+      "Ensure proper irrigation and fertilization to maintain plant vigor."
+    ],
+    "biological": [
+      "Conserve and encourage natural enemies like ladybugs, lacewings, and predatory mites.",
+      "Release commercially available biological control agents where appropriate."
+    ],
+    "chemical": [
+      "Apply horticultural oils or insecticidal soaps for soft-bodied insects and mites.",
+      "Use specific, targeted insecticides or miticides based on positive identification of the pest.",
+      "Avoid broad-spectrum insecticides that harm beneficial insects."
+    ],
+    "notes": "Accurate identification of the specific pest is critical for selecting the most effective and least harmful management strategy."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/litchi/red_rust_disease.json b/diseases_knowledge_base/litchi/red_rust_disease.json
new file mode 100644
index 0000000000000000000000000000000000000000..92b72f8f279e4fe079c9f07bf4d2e37c6c145faf
--- /dev/null
+++ b/diseases_knowledge_base/litchi/red_rust_disease.json
@@ -0,0 +1,138 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "litchi.disease_fungal.red_rust_disease",
+  "aliases": [
+    "algal leaf spot",
+    "cephaleuros leaf spot"
+  ],
+  "crop": {
+    "common_name": "litchi",
+    "scientific_name": "Litchi chinensis",
+    "family": "Sapindaceae"
+  },
+  "condition": {
+    "common_name": "red rust disease",
+    "scientific_name": "Cephaleuros virescens",
+    "alt_names": [
+      "Algal leaf spot"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Plantae",
+        "phylum": "Chlorophyta",
+        "class": "Ulvophyceae",
+        "order": "Trentepohliales",
+        "family": "Trentepohliaceae",
+        "genus": "Cephaleuros",
+        "species": "virescens"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "Wind-driven rain",
+      "Water splash"
+    ],
+    "overwintering": [
+      "In infected leaves and stems as algal thalli"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High humidity",
+      "Frequent rainfall",
+      "Poor air circulation within the canopy",
+      "Low light intensity",
+      "Plant stress due to nutrient deficiency"
+    ],
+    "temp_c_day": [
+      25,
+      32
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      80,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 8
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area affected with distinct, scattered spots.",
+    "moderate": "11-30% of leaf area affected; some spots may begin to coalesce.",
+    "severe": ">30% of leaf area affected; extensive coalescing spots, often accompanied by leaf yellowing and premature defoliation.",
+    "notes": "Severity is estimated as the percentage of the total leaf surface covered by the characteristic orange, velvety spots. In severe cases, stem and fruit infection should also be considered."
+  },
+  "symptoms": {
+    "leaves": [
+      "Circular to irregular, slightly raised spots appear on the upper leaf surface.",
+      "Spots are initially greenish-grey and develop a velvety texture.",
+      "Mature spots become a distinct rusty-red or orange-brown color.",
+      "The velvety texture is composed of the algal sporangiophores.",
+      "A faint yellow halo may surround older spots.",
+      "Underlying leaf tissue can become necrotic and turn brown.",
+      "In severe infections, leaves may yellow and drop prematurely."
+    ],
+    "stems": [
+      "Similar velvety, orange-red spots can form on young, green stems and twigs.",
+      "Infections may lead to bark cracking or small cankers on twigs."
+    ],
+    "fruit": [
+      "Small, raised, rusty-colored spots can appear on the fruit rind.",
+      "Fruit spots are typically superficial and do not affect the flesh quality."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Reduced plant vigor and significant defoliation in severe, chronic cases."
+    ],
+    "signs_microscopic_or_visible": [
+      "A visible, dense, felt-like mat of orange to red-brown algal filaments and sporangiophores forms the lesion."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "leaf_blight",
+      "condition_id": "litchi.disease_fungal.leaf_blight",
+      "key_differences": [
+        "Red rust spots are distinctly raised and have a velvety/hairy texture; fungal leaf blights are typically flat, necrotic lesions.",
+        "Red rust spots are bright orange-red; leaf blight lesions are usually brown, tan, or grey, sometimes with concentric rings.",
+        "Leaf blight lesions often start at the leaf margin or tip and expand irregularly, while red rust spots can appear anywhere on the leaf lamina."
+      ]
+    },
+    {
+      "condition_name": "pest_damage",
+      "condition_id": "litchi.abiotic.pest_damage",
+      "key_differences": [
+        "Red rust spots are velvety and raised; mite damage causes fine stippling or bronzing, not distinct raised spots.",
+        "Red rust spots have a characteristic orange-red color; mite damage is typically bronze, brown, or silvery.",
+        "Mites or their webbing may be visible with a hand lens, which is absent in red rust disease."
+      ]
+    },
+    {
+      "condition_name": "black_spot",
+      "condition_id": "litchi.disease_fungal.black_spot",
+      "key_differences": [
+        "The primary color is orange-red for red rust, versus dark brown to black for black spot.",
+        "Red rust lesions are velvety and raised from the leaf surface; black spot lesions are typically flat or slightly sunken.",
+        "A distinct yellow halo is more consistently associated with black spot than with red rust."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Improve air circulation and light penetration by proper pruning of the canopy.",
+      "Manage irrigation to minimize leaf wetness duration; avoid overhead watering.",
+      "Ensure balanced plant nutrition to improve host resistance.",
+      "Remove and destroy heavily infected leaves and twigs during pruning."
+    ],
+    "biological": [],
+    "chemical": [
+      "Application of copper-based fungicides (e.g., copper hydroxide, copper oxychloride) can be effective.",
+      "Preventative fungicide applications before the onset of the rainy season are most effective."
+    ],
+    "notes": "Chemical control is typically reserved for severe infections or in nursery settings where conditions are highly conducive to disease development."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/litchi/senescence_or_dry.json b/diseases_knowledge_base/litchi/senescence_or_dry.json
new file mode 100644
index 0000000000000000000000000000000000000000..045a8a3443d5b17c17e93a0a5a369ecec4ee5dcb
--- /dev/null
+++ b/diseases_knowledge_base/litchi/senescence_or_dry.json
@@ -0,0 +1,129 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "litchi.physiological_symptom.senescence_or_dry",
+  "aliases": [
+    "Leaf senescence",
+    "Leaf drying",
+    "Natural leaf drop",
+    "Age-related browning",
+    "Water stress",
+    "Tip burn"
+  ],
+  "crop": {
+    "common_name": "Litchi",
+    "scientific_name": "Litchi chinensis",
+    "family": "Sapindaceae"
+  },
+  "condition": {
+    "common_name": "Senescence or Dry",
+    "scientific_name": null,
+    "alt_names": [
+      "Leaf aging",
+      "Natural dieback",
+      "Desiccation",
+      "Drought stress symptoms"
+    ],
+    "pathogen": {
+      "type": "physiological_disorder",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "physiological_symptom",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Inadequate irrigation or drought",
+      "Prolonged high temperatures and low humidity",
+      "Poor soil drainage leading to root stress",
+      "Nutrient deficiency (especially potassium)",
+      "Natural aging process of older leaves",
+      "High soil salinity"
+    ],
+    "temp_c_day": [
+      30,
+      40
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      0,
+      40
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "Less than 10% of the leaf surface is brown or yellow. Discoloration is confined to the extreme tip or margins.",
+    "moderate": "10-40% of the leaf surface is affected. Browning extends significantly inward from the margins, and the leaf may begin to curl.",
+    "severe": "More than 40% of the leaf surface is affected. The entire leaf is extensively brown, brittle, curled, and may be dropping from the plant.",
+    "notes": "Assessed on a per-leaf basis. Differentiate from sudden burn by observing the gradual transition from green to yellow to brown, typical of a slower drying process."
+  },
+  "symptoms": {
+    "leaves": [
+      "Progressive yellowing (chlorosis) that typically begins on older, lower leaves.",
+      "Browning and drying starts at the leaf tip and/or margins and advances inward.",
+      "The transition between green and brown tissue is often gradual, sometimes with a yellow halo.",
+      "Affected tissue becomes dry, brittle, and papery to the touch.",
+      "Leaves may curl or roll inwards as they lose turgor.",
+      "The discoloration pattern is generally uniform browning, lacking distinct spots, pustules, or concentric rings.",
+      "In severe cases, the entire leaf turns brown and abscises (drops) prematurely."
+    ],
+    "stems": [
+      "In prolonged and severe drought, terminal twigs may shrivel and die back."
+    ],
+    "fruit": [],
+    "roots": [],
+    "whole_plant": [
+      "General appearance of wilting during the hottest part of the day.",
+      "Reduced canopy density due to premature leaf drop."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Burned Leaf",
+      "condition_id": "litchi.physiological_symptom.burned_leaf",
+      "key_differences": [
+        "Burn damage appears rapidly and often has a very sharp, distinct border between necrotic and healthy tissue, while drying is a more gradual transition.",
+        "Sunburn often bleaches tissue to a light tan or white color, especially on the most sun-exposed parts of the canopy.",
+        "Chemical burn can appear as spots or blotches wherever droplets landed, not necessarily starting at the margins.",
+        "Drying typically affects leaf tips and margins symmetrically, while burn damage can be asymmetrical depending on exposure."
+      ]
+    },
+    {
+      "condition_name": "Leaf Blight",
+      "condition_id": "litchi.fungal_disease.leaf_blight",
+      "key_differences": [
+        "Blight presents as large, irregular lesions or blotches that can start anywhere on the leaf, not just the margins.",
+        "Blight lesions may exhibit concentric rings ('target spot' appearance) or have a darker, well-defined border.",
+        "Under humid conditions, fungal structures (e.g., moldy growth, tiny black dots which are pycnidia) may be visible on blight lesions, which are absent in physiological drying.",
+        "Blight lesions may initially appear water-soaked, whereas drying symptoms are characteristically dry and brittle from the start."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Ensure consistent and deep irrigation, especially during fruit development and hot, dry weather.",
+      "Apply a thick layer of organic mulch around the tree base to conserve soil moisture and moderate root temperature.",
+      "Conduct soil and leaf analysis to diagnose and correct nutrient imbalances, particularly potassium.",
+      "Improve soil drainage in heavy clay soils to prevent root suffocation and waterlogging stress."
+    ],
+    "biological": [],
+    "chemical": [
+      "In areas with saline water, periodic leaching of the root zone with fresh water can reduce salt buildup.",
+      "Application of anti-transpirants before a predicted heatwave may help reduce water loss."
+    ],
+    "notes": "Differentiating natural senescence of old leaves from stress-induced drying is crucial. A small amount of yellowing and drop of the oldest leaves is normal and requires no intervention."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/litchi/white_spot.json b/diseases_knowledge_base/litchi/white_spot.json
new file mode 100644
index 0000000000000000000000000000000000000000..022cf89ff2cc29ee2b946bec38853eab78945572
--- /dev/null
+++ b/diseases_knowledge_base/litchi/white_spot.json
@@ -0,0 +1,130 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "litchi.physiological_symptom.white_spot",
+  "aliases": [
+    "sunscald",
+    "sunburn"
+  ],
+  "crop": {
+    "common_name": "litchi",
+    "scientific_name": "Litchi chinensis",
+    "family": "Sapindaceae"
+  },
+  "condition": {
+    "common_name": "white spot",
+    "scientific_name": null,
+    "alt_names": [
+      "sunscald",
+      "sunburn"
+    ],
+    "pathogen": {
+      "type": "abiotic",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "physiological_symptom",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High solar radiation",
+      "Sudden exposure of leaves or fruit to direct sunlight (e.g., after pruning)",
+      "High ambient temperatures",
+      "Low relative humidity",
+      "Water stress"
+    ],
+    "temp_c_day": [
+      32,
+      45
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      20,
+      50
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of the visible leaf or fruit surface is affected by white, bleached patches.",
+    "moderate": "11-40% of the visible leaf or fruit surface shows symptoms, which may be coalescing.",
+    "severe": ">40% of the visible leaf or fruit surface is bleached, dry, or necrotic.",
+    "notes": "Severity is assessed on an individual leaf or fruit. The percentage refers to the surface area showing characteristic white, papery, or leathery symptoms caused by sun exposure. A value of 0 indicates the condition is not applicable as it's an abiotic disorder not driven by moisture."
+  },
+  "symptoms": {
+    "leaves": [
+      "Irregular, bleached white, tan, or light grey patches appear on sun-exposed leaf surfaces.",
+      "Affected tissue becomes dry, thin, and papery to the touch.",
+      "Lesions are often located on the upper canopy leaves that receive the most direct sunlight.",
+      "A distinct border may form between the damaged area and healthy green tissue.",
+      "In severe cases, the necrotic patch may crack or fall out, creating holes in the leaf."
+    ],
+    "stems": [
+      "Bleached or light-colored patches can occur on young, green stems directly exposed to intense sun."
+    ],
+    "fruit": [
+      "A white to light-brown, sunken, leathery patch develops on the fruit peel (pericarp).",
+      "The symptom is almost always on the side of the fruit facing the sun.",
+      "The affected peel fails to develop the normal red coloration.",
+      "The underlying flesh (aril) beneath the spot may become dry, hard, and unpalatable."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Symptoms are concentrated on the south- or west-facing side of the plant canopy (in the Northern Hemisphere)."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "burned_leaf",
+      "condition_id": "litchi.physiological_symptom.burned_leaf",
+      "key_differences": [
+        "White spot (sunscald) causes bleached, white-to-tan patches in the center or exposed side of the leaf, whereas leaf burn from drought or salinity typically starts at the leaf tip or margins and is dark brown or black.",
+        "Sunscald lesions are often irregularly shaped based on sun exposure, while marginal necrosis (burn) follows the leaf edge more uniformly.",
+        "Sunscald is localized to sun-exposed parts of the canopy; chemical or salt burn can appear anywhere on the plant, including shaded lower leaves."
+      ]
+    },
+    {
+      "condition_name": "pest_damage",
+      "condition_id": "litchi.pest_damage.unspecified",
+      "key_differences": [
+        "White spot lesions are solid bleached patches, whereas mite damage often appears as fine, silvery or bronze stippling.",
+        "Damage from leaf-mining insects creates distinct winding trails or blotches within the leaf tissue, which is structurally different from the surface bleaching of sunscald.",
+        "Physical evidence of pests, such as insects, frass, webbing, or eggs, may be visible with pest damage but is absent in white spot."
+      ]
+    },
+    {
+      "condition_name": "red_rust_disease",
+      "condition_id": "litchi.algal_pathogen.red_rust_disease",
+      "key_differences": [
+        "White spot is a bleached, papery lesion, while red rust disease appears as raised, velvety, orange-to-reddish-brown spots on leaves or stems.",
+        "Red rust spots are caused by an alga and have a distinct color and texture, unlike the pale, necrotic tissue of sunscald.",
+        "Under magnification, red rust shows filamentous structures, which are absent in the abiotic white spot condition."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Ensure adequate and consistent irrigation during hot, dry weather to prevent water stress, which increases susceptibility.",
+      "Avoid excessive or sudden pruning that exposes previously shaded leaves and fruit to intense direct sunlight.",
+      "Maintain a healthy, sufficiently dense canopy to provide natural shading for developing fruit.",
+      "Orient rows to minimize direct afternoon sun exposure on the fruit, if possible during orchard planning."
+    ],
+    "biological": [],
+    "chemical": [
+      "Application of reflective particle films, such as kaolin clay sprays, can act as a physical sunscreen to protect leaves and fruit."
+    ],
+    "notes": "Management is entirely preventative, focusing on reducing plant stress and mitigating the effects of extreme solar radiation and heat."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/litchi/yellow_mosaic_virus.json b/diseases_knowledge_base/litchi/yellow_mosaic_virus.json
new file mode 100644
index 0000000000000000000000000000000000000000..966b1d3e9c1dee10c83d5aa77f3965189e0a2629
--- /dev/null
+++ b/diseases_knowledge_base/litchi/yellow_mosaic_virus.json
@@ -0,0 +1,137 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "litchi.disease_viral.yellow_mosaic_virus",
+  "aliases": [
+    "Litchi yellow mosaic disease",
+    "LYMD"
+  ],
+  "crop": {
+    "common_name": "litchi",
+    "scientific_name": "Litchi chinensis",
+    "family": "Sapindaceae"
+  },
+  "condition": {
+    "common_name": "yellow mosaic virus",
+    "scientific_name": null,
+    "alt_names": [
+      "litchi yellow mosaic"
+    ],
+    "pathogen": {
+      "type": "virus",
+      "taxonomy": {
+        "kingdom": "Orthornavirae",
+        "phylum": "Cressdnaviricota",
+        "class": "Repensiviricetes",
+        "order": "Geplafuvirales",
+        "family": "Geminiviridae",
+        "genus": "Begomovirus",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "disease_viral",
+  "transmission": {
+    "vectors": [
+      "Whitefly (Bemisia tabaci)"
+    ],
+    "dispersal": [
+      "Infected planting material (grafting)",
+      "Insect vectors"
+    ],
+    "overwintering": [
+      "In perennial host plants",
+      "In surviving adult insect vectors"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High populations of whitefly vectors",
+      "Warm and humid conditions favoring vector activity",
+      "Proximity to infected alternative host plants",
+      "Use of uncertified, infected scions for grafting"
+    ],
+    "temp_c_day": [
+      25,
+      35
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      60,
+      85
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area shows yellow mosaic or mottling. Symptoms may be on scattered, individual leaves, often on a single flush.",
+    "moderate": "11-40% of leaf area affected. Mosaic patterns are prominent and widespread across multiple leaves and flushes of growth.",
+    "severe": ">40% of leaf area affected. Widespread, bright yellowing, often accompanied by leaf distortion, curling, and stunting of new shoots.",
+    "notes": "Severity is estimated based on the percentage of the plant's total leaf surface area showing characteristic yellow mosaic, mottling, or chlorotic patterns."
+  },
+  "symptoms": {
+    "leaves": [
+      "Bright yellow, irregular patches or blotches interspersed with normal green tissue, creating a distinct mosaic pattern.",
+      "Diffuse chlorotic mottling across the leaf lamina.",
+      "Symptoms are typically most conspicuous on young, developing leaves and new flushes.",
+      "Vein clearing or vein banding, where tissue along the veins turns yellow, may occur on young leaves.",
+      "In severe infections, leaves may be distorted, puckered, curled, or reduced in size.",
+      "The boundary between yellow and green areas is typically sharp and irregular.",
+      "Affected leaves may feel brittle compared to healthy ones."
+    ],
+    "stems": [
+      "Internodes may be shortened, leading to a bushy or stunted appearance of new growth."
+    ],
+    "fruit": [
+      "Reduced fruit set and smaller fruit size may occur on chronically infected trees."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "General stunting, reduced vigor, and overall decline in plant health in severe cases."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "senescence_or_dry",
+      "condition_id": "litchi.abiotic.senescence_or_dry",
+      "key_differences": [
+        "Senescence causes a uniform, gradual yellowing (chlorosis), often starting from the margins or tip, not a patchy mosaic of green and yellow.",
+        "Drought stress typically causes wilting and browning/crisping of leaf edges, which are absent in viral mosaic.",
+        "Mosaic patterns are distinct, irregular patches, while senescence is a more consistent color change across the entire leaf."
+      ]
+    },
+    {
+      "condition_name": "pest_damage",
+      "condition_id": "litchi.pest.pest_damage",
+      "key_differences": [
+        "Pest damage (e.g., from mites) often appears as fine, pinpoint stippling or tiny chlorotic spots, not large, blotchy mosaic patterns.",
+        "The underside of the leaf may reveal the pests themselves, webbing, or sooty mold from honeydew, which are not signs of a virus.",
+        "Pest-induced yellowing may follow feeding tracks or be concentrated in specific areas, unlike the random mosaic distribution."
+      ]
+    },
+    {
+      "condition_name": "red_rust_disease",
+      "condition_id": "litchi.disease_algal.red_rust_disease",
+      "key_differences": [
+        "Red rust presents as raised, velvety, circular spots that are orange to reddish-brown, not flat, yellow areas within the leaf tissue.",
+        "Viral mosaic is a discoloration of the leaf lamina, whereas red rust is a physical algal growth on the leaf surface.",
+        "The color of red rust is distinctly orange/rust, contrasting with the bright yellow or chlorotic color of the virus."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified virus-free planting material from reputable nurseries.",
+      "Rogue and destroy infected plants immediately upon detection to limit spread.",
+      "Maintain good weed control in and around the orchard, as weeds can host the virus and its vectors.",
+      "Avoid mechanical damage to plants, which can create entry points for vectors."
+    ],
+    "biological": [
+      "Conserve and encourage natural enemies of whiteflies, such as lacewings, lady beetles, and parasitic wasps."
+    ],
+    "chemical": [
+      "Apply systemic or contact insecticides recommended for whitefly control, targeting vector populations, especially before and during new growth flushes. Rotate chemical classes to prevent resistance."
+    ],
+    "notes": "The primary management strategy is prevention. Once a plant is infected with a virus, it cannot be cured. All efforts should focus on using clean planting stock and controlling the whitefly vector."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/mango/anthracnose.json b/diseases_knowledge_base/mango/anthracnose.json
new file mode 100644
index 0000000000000000000000000000000000000000..e4f345a3aae3a36229a74029147eee86fcc0a5f4
--- /dev/null
+++ b/diseases_knowledge_base/mango/anthracnose.json
@@ -0,0 +1,139 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "mango.disease_fungal.anthracnose",
+  "aliases": [
+    "mango blossom blight",
+    "mango fruit rot",
+    "mango leaf spot"
+  ],
+  "crop": {
+    "common_name": "mango",
+    "scientific_name": "Mangifera indica",
+    "family": "Anacardiaceae"
+  },
+  "condition": {
+    "common_name": "anthracnose",
+    "scientific_name": "Colletotrichum gloeosporioides",
+    "alt_names": [
+      "blossom blight",
+      "fruit rot",
+      "leaf blight",
+      "twig blight"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Sordariomycetes",
+        "order": "Glomerellales",
+        "family": "Glomerellaceae",
+        "genus": "Colletotrichum",
+        "species": "gloeosporioides"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "rain_splash",
+      "wind_driven_rain",
+      "irrigation_water",
+      "contaminated_tools"
+    ],
+    "overwintering": [
+      "infected_twigs",
+      "dead_leaves",
+      "mummified_fruit",
+      "plant_debris"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high_humidity",
+      "frequent_rain",
+      "prolonged_leaf_wetness",
+      "warm_temperatures",
+      "dense_canopy"
+    ],
+    "temp_c_day": [
+      24,
+      32
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      95,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 12
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf or fruit surface area affected by distinct lesions.",
+    "moderate": "11-40% of surface area affected; lesions may be coalescing; minor twig dieback or blossom blight present.",
+    "severe": ">40% of surface area affected; extensive lesion coverage, significant fruit rot, defoliation, or severe blossom blight.",
+    "notes": "Severity is assessed on the most affected plant part (leaves, fruit, or flowers). For blossom blight, severity can be estimated as the percentage of blighted panicles."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, dark brown to black, irregular or angular spots appear on young, tender leaves.",
+      "Lesions enlarge and may develop a necrotic, greyish-brown center with a dark border.",
+      "A yellow chlorotic halo may surround the spots.",
+      "In severe cases, lesion centers dry and fall out, creating a 'shot-hole' appearance.",
+      "Infected leaves may become twisted or deformed."
+    ],
+    "stems": [
+      "Elongated, dark, sunken lesions (cankers) can form on young twigs and flower stalks (panicles).",
+      "Infected flower panicles turn black, shrivel, and die, a symptom known as 'blossom blight'."
+    ],
+    "fruit": [
+      "Dark, sunken, circular lesions develop on the fruit skin, often as it begins to ripen.",
+      "Lesions enlarge and coalesce, leading to extensive fruit rot.",
+      "Under humid conditions, pinkish-orange, gelatinous spore masses (acervuli) erupt in a concentric pattern on the lesions."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Twig dieback can occur, progressing downwards from infected panicles or terminal buds."
+    ],
+    "signs_microscopic_or_visible": [
+      "Presence of salmon-pink or orange-colored spore masses (acervuli) in the center of lesions, especially on fruit."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "bacterial_canker",
+      "condition_id": "mango.disease_bacterial.bacterial_canker",
+      "key_differences": [
+        "Bacterial canker lesions are typically raised, cracked, and have water-soaked margins, whereas anthracnose lesions are sunken.",
+        "A gummy, amber-colored ooze may exude from bacterial cankers, a sign not present in anthracnose.",
+        "Bacterial leaf spots are distinctly angular and limited by veins, while anthracnose spots are more irregular or rounded."
+      ]
+    },
+    {
+      "condition_name": "sooty_mold",
+      "condition_id": "mango.disease_fungal.sooty_mold",
+      "key_differences": [
+        "Sooty mold is a superficial, black, powdery coating on the leaf/fruit surface that can be physically wiped off.",
+        "Anthracnose causes necrotic lesions that are integrated into the plant tissue and cannot be wiped off.",
+        "Sooty mold growth is always associated with the presence of honeydew from sap-sucking insects; anthracnose is a primary pathogen."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Prune trees annually to open the canopy, improving air circulation and reducing humidity.",
+      "Remove and destroy infected plant debris, including fallen leaves, twigs, and mummified fruit.",
+      "Avoid overhead irrigation that wets the canopy for prolonged periods.",
+      "Handle fruit carefully during harvest to prevent wounds that can serve as entry points for the fungus."
+    ],
+    "biological": [
+      "Application of bio-fungicides containing Bacillus subtilis or Trichoderma species can help suppress the pathogen when applied preventatively."
+    ],
+    "chemical": [
+      "Apply protective fungicides (e.g., copper-based, mancozeb, chlorothalonil) prior to and during flowering and early fruit development.",
+      "Post-harvest hot water treatment of fruit (e.g., 5 minutes at 52-55\u00b0C) can control latent infections."
+    ],
+    "notes": "Fungicide application must be timed correctly with weather forecasts, focusing on protecting new growth, flowers, and young fruit during warm, wet periods."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/mango/bacterial_canker.json b/diseases_knowledge_base/mango/bacterial_canker.json
new file mode 100644
index 0000000000000000000000000000000000000000..299347417011540e948d8a2efef5b836e2b07166
--- /dev/null
+++ b/diseases_knowledge_base/mango/bacterial_canker.json
@@ -0,0 +1,147 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "mango.disease_bacterial.bacterial_canker",
+  "aliases": [
+    "bacterial black spot of mango",
+    "mango bacterial spot",
+    "mango canker"
+  ],
+  "crop": {
+    "common_name": "mango",
+    "scientific_name": "Mangifera indica",
+    "family": "Anacardiaceae"
+  },
+  "condition": {
+    "common_name": "bacterial canker",
+    "scientific_name": "Xanthomonas campestris pv. mangiferaeindicae",
+    "alt_names": [
+      "bacterial black spot"
+    ],
+    "pathogen": {
+      "type": "disease_bacterial",
+      "taxonomy": {
+        "kingdom": "Bacteria",
+        "phylum": "Pseudomonadota",
+        "class": "Gammaproteobacteria",
+        "order": "Xanthomonadales",
+        "family": "Xanthomonadaceae",
+        "genus": "Xanthomonas",
+        "species": "X. campestris pv. mangiferaeindicae"
+      }
+    }
+  },
+  "issue_type": "disease_bacterial",
+  "transmission": {
+    "vectors": [
+      "wind-driven rain"
+    ],
+    "dispersal": [
+      "infected planting material",
+      "contaminated pruning tools",
+      "rain splash"
+    ],
+    "overwintering": [
+      "in cankers on stems and branches",
+      "in fallen infected leaves and fruit"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high humidity",
+      "frequent rainfall",
+      "warm temperatures (25-30\u00b0C)",
+      "windy conditions",
+      "wounds on plant tissue from insects or mechanical damage"
+    ],
+    "temp_c_day": [
+      25,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      80,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 6
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-5% of leaf surface affected with small, scattered lesions. No significant stem involvement.",
+    "moderate": "6-25% of leaf surface affected; some lesions are coalescing. Minor cankers may be present on young twigs.",
+    "severe": ">25% of leaf surface affected with large necrotic areas. Significant stem cankers, fruit infection, and dieback are visible.",
+    "notes": "Severity is primarily assessed by the percentage of symptomatic leaf area on the most affected leaves. The presence and severity of stem and fruit symptoms should also be considered for a whole-plant assessment."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, angular, water-soaked spots that turn black and become raised.",
+      "Lesions are typically surrounded by a prominent, bright yellow halo.",
+      "Spots may coalesce to form large, irregular necrotic patches.",
+      "Infected leaf veins may darken or blacken.",
+      "Severe infections can lead to a 'shot-hole' appearance as the necrotic centers of spots fall out."
+    ],
+    "stems": [
+      "Raised, dark, water-soaked cankers on young twigs and branches.",
+      "Cankers often crack open and release a gummy, yellowish bacterial ooze in humid conditions.",
+      "Girdling of stems by cankers can cause dieback of the distal parts."
+    ],
+    "fruit": [
+      "Small, dark, raised, water-soaked spots on the fruit skin.",
+      "Lesions enlarge, turn black, and may crack open, often in a star-like shape.",
+      "A sticky exudate may emerge from fruit lesions.",
+      "Infection can lead to premature fruit drop and reduce market value."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "In severe cases, widespread defoliation and branch dieback can occur."
+    ],
+    "signs_microscopic_or_visible": [
+      "Gummy, bacterial ooze exuding from stem or fruit cankers, especially during wet weather."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "anthracnose",
+      "condition_id": "mango.disease_fungal.anthracnose",
+      "key_differences": [
+        "Anthracnose spots are typically sunken and brown-to-black, whereas bacterial canker spots are raised and angular.",
+        "Bacterial canker lesions almost always have a distinct yellow halo, which is less common or absent in anthracnose.",
+        "Anthracnose often forms 'tear stain' patterns on fruit, while bacterial canker causes discrete, raised, cracked lesions.",
+        "Bacterial ooze is a sign of canker; pinkish-orange spore masses in wet conditions are a sign of anthracnose."
+      ]
+    },
+    {
+      "condition_name": "gall_midge",
+      "condition_id": "mango.pest_insect.gall_midge",
+      "key_differences": [
+        "Gall midge damage appears as small, raised, circular, wart-like galls, not angular, water-soaked spots.",
+        "Gall midge spots lack the characteristic yellow halo and bacterial ooze of canker.",
+        "Mature galls may have a tiny exit hole from the emerged larva, a feature absent in bacterial canker lesions."
+      ]
+    },
+    {
+      "condition_name": "sooty_mold",
+      "condition_id": "mango.disease_fungal.sooty_mold",
+      "key_differences": [
+        "Sooty mold is a superficial, black, velvety coating that can be physically wiped off the leaf surface.",
+        "Bacterial canker lesions are embedded within the plant tissue and cannot be wiped off.",
+        "Sooty mold is a secondary issue resulting from honeydew produced by insects like aphids or mealybugs, which would also be present."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified disease-free planting material.",
+      "Prune and destroy infected branches and twigs during the dry season to reduce inoculum.",
+      "Improve air circulation within the orchard by proper tree spacing and pruning.",
+      "Avoid overhead irrigation to minimize periods of leaf wetness."
+    ],
+    "biological": [
+      "Application of products containing *Bacillus subtilis* or other antagonistic microorganisms may offer some suppression."
+    ],
+    "chemical": [
+      "Preventative sprays with copper-based bactericides (e.g., copper hydroxide, copper oxychloride) before and during the rainy season.",
+      "In some regions, antibiotics like streptomycin may be used, but resistance and regulations are a concern."
+    ],
+    "notes": "An integrated approach is essential. Management should focus on reducing inoculum through sanitation and protecting new growth with timely bactericide applications."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/mango/dieback.json b/diseases_knowledge_base/mango/dieback.json
new file mode 100644
index 0000000000000000000000000000000000000000..34e325760507b91f30ec4451b28d46f9728e872b
--- /dev/null
+++ b/diseases_knowledge_base/mango/dieback.json
@@ -0,0 +1,148 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "mango.unknown.dieback",
+  "aliases": [
+    "Tip dieback",
+    "Twig blight",
+    "Gummosis"
+  ],
+  "crop": {
+    "common_name": "mango",
+    "scientific_name": "Mangifera indica",
+    "family": "Anacardiaceae"
+  },
+  "condition": {
+    "common_name": "dieback",
+    "scientific_name": "",
+    "alt_names": [
+      "Twig dieback",
+      "Branch dieback",
+      "Tip necrosis"
+    ],
+    "pathogen": {
+      "type": "unknown",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [
+      "Pruning tools",
+      "Insects (borers)"
+    ],
+    "dispersal": [
+      "Wind-driven rain",
+      "Contaminated pruning tools",
+      "Infected planting material"
+    ],
+    "overwintering": [
+      "Infected dead twigs",
+      "Cankers on branches",
+      "Plant debris"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High humidity",
+      "Prolonged rainy season",
+      "Wounds from pruning or insects",
+      "Poorly drained soils",
+      "Nutrient deficiency (e.g., copper)",
+      "Post-harvest stress"
+    ],
+    "temp_c_day": [
+      25,
+      35
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      80,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 12
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "One or a few small terminal twigs show dieback, affecting <10% of the canopy.",
+    "moderate": "Multiple branches show dieback, progressing downwards, affecting 10-30% of the canopy.",
+    "severe": "Major limbs or the main trunk are affected, with significant canopy loss >30% and potential tree death.",
+    "notes": "Severity is measured by the percentage of the tree's canopy showing dead or dying branches, starting from the tips and progressing inwards."
+  },
+  "symptoms": {
+    "leaves": [
+      "Wilting and drooping of leaves on affected twigs.",
+      "Leaves turn brown or black, but remain attached to the dead branch for some time.",
+      "Young leaves at the tip of a branch suddenly dry out and appear scorched."
+    ],
+    "stems": [
+      "Progressive drying of twigs and branches from the tip downwards.",
+      "Affected bark turns dark brown to black.",
+      "A distinct dark, sunken band may be visible at the junction of healthy and diseased tissue.",
+      "Gum or a dark, sticky substance may exude from cracks in the bark (gummosis).",
+      "Small, black, pin-head sized fruiting bodies (pycnidia) may appear on dead twigs under moist conditions."
+    ],
+    "fruit": [
+      "Fruit on affected branches may shrivel, mummify, and remain attached."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Affected branches appear barren and dead against the healthy foliage.",
+      "In severe cases, the entire tree may die."
+    ],
+    "signs_microscopic_or_visible": [
+      "Black, pimple-like structures (pycnidia) embedded in the dead bark.",
+      "Oozing of dark, resinous gum from cankers on stems or branches."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "anthracnose",
+      "condition_id": "mango.fungal.anthracnose",
+      "key_differences": [
+        "Anthracnose also causes distinct, dark, angular spots on leaves and sunken black lesions on fruit, which are not primary symptoms of dieback.",
+        "Anthracnose leaf spots often have a 'shot-hole' appearance as the center falls out.",
+        "Dieback is a progressive death from the tip, while anthracnose twig blight can appear as discrete cankers anywhere on the stem."
+      ]
+    },
+    {
+      "condition_name": "senescence_or_dry",
+      "condition_id": "mango.abiotic.senescence_or_dry",
+      "key_differences": [
+        "Drought stress causes a more uniform yellowing and drying of leaves across the whole plant, not just starting from the tips of specific branches.",
+        "Dieback often shows a clear demarcation line between dead and living tissue, which is less common in general drying.",
+        "There is no gummosis or presence of fungal fruiting bodies with simple drought stress or senescence."
+      ]
+    },
+    {
+      "condition_name": "bacterial_canker",
+      "condition_id": "mango.bacterial.bacterial_canker",
+      "key_differences": [
+        "Bacterial canker lesions are often water-soaked initially and may exude a lighter-colored bacterial ooze, unlike the dark gum of fungal dieback.",
+        "Bacterial canker also causes distinct, angular, raised, black spots on leaves and fruit.",
+        "While both can cause branch death, bacterial cankers can form anywhere on a stem, whereas dieback characteristically progresses from the tip downwards."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Prune and destroy affected twigs and branches, cutting at least 15-20 cm into the healthy wood.",
+      "Ensure proper irrigation and balanced nutrition to maintain tree vigor.",
+      "Avoid wounding trees during cultural operations.",
+      "Sterilize pruning tools (e.g., with 10% bleach solution or alcohol) between cuts and between trees."
+    ],
+    "biological": [],
+    "chemical": [
+      "Apply protective copper-based fungicides (e.g., copper oxychloride, Bordeaux mixture) before the rainy season to protect from new infections.",
+      "After pruning, apply a fungicidal paste to the cut ends to prevent pathogen entry."
+    ],
+    "notes": "Integrated management focusing on sanitation and maintaining tree health is crucial. The exact chemical control depends on the specific pathogen identified."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/mango/gall_midge.json b/diseases_knowledge_base/mango/gall_midge.json
new file mode 100644
index 0000000000000000000000000000000000000000..f3db1cfd822c286667dc138c81670176b9daf4b4
--- /dev/null
+++ b/diseases_knowledge_base/mango/gall_midge.json
@@ -0,0 +1,136 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "mango.pest_insect.gall_midge",
+  "aliases": [
+    "mango inflorescence midge",
+    "mango blossom midge",
+    "mango leaf gall midge"
+  ],
+  "crop": {
+    "common_name": "mango",
+    "scientific_name": "Mangifera indica",
+    "family": "Anacardiaceae"
+  },
+  "condition": {
+    "common_name": "gall midge",
+    "scientific_name": "Procontarinia spp.",
+    "alt_names": [
+      "mango midge",
+      "mango blossom gall midge"
+    ],
+    "pathogen": {
+      "type": "insect",
+      "taxonomy": {
+        "kingdom": "Animalia",
+        "phylum": "Arthropoda",
+        "class": "Insecta",
+        "order": "Diptera",
+        "family": "Cecidomyiidae",
+        "genus": "Procontarinia",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "pest_insect",
+  "transmission": {
+    "vectors": [
+      "Adult midges (flying)"
+    ],
+    "dispersal": [
+      "Wind",
+      "Movement of infested plant material"
+    ],
+    "overwintering": [
+      "Pupae in the soil under the tree canopy",
+      "Larvae within fallen leaves and galls"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High humidity",
+      "Warm temperatures coinciding with new vegetative flushes or flowering",
+      "Presence of overlapping mango flowering seasons in an area",
+      "Lack of orchard sanitation"
+    ],
+    "temp_c_day": [
+      25,
+      32
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      70,
+      90
+    ],
+    "leaf_wetness_hours_threshold": 10
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Few scattered galls on leaves or inflorescence; less than 10% of new shoots or panicles affected.",
+    "moderate": "Multiple galls visible on many new shoots or panicles; 10-40% of panicles show damage, some flower drop is evident.",
+    "severe": "Widespread gall formation on most new growth and panicles; >40% of panicles are affected, leading to significant flower drop, panicle drying, and poor fruit set.",
+    "notes": "Severity is assessed by the percentage of new flushes (leaves, stems, or inflorescences) showing characteristic galls or larval damage, as this directly impacts vegetative growth and fruit set."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, raised, blister-like or pimple-like galls on young leaves.",
+      "Galls are initially greenish-yellow and later turn brown or black and necrotic.",
+      "Leaves may become crinkled, distorted, or curled due to gall formation.",
+      "A tiny circular exit hole may be visible on the gall after the adult midge emerges."
+    ],
+    "stems": [
+      "Galls can form on tender shoots and new stems, causing localized swelling and distortion.",
+      "Severe infestation on terminal shoots can lead to dieback."
+    ],
+    "fruit": [
+      "Damage primarily occurs to flowers and flower buds, preventing fruit formation.",
+      "Galls on the inflorescence axis and at the base of flowers cause them to dry and drop."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Inflorescences (flower panicles) appear blighted, dried, or 'burnt' from a distance.",
+      "Significant reduction in fruit set due to widespread flower damage and drop."
+    ],
+    "signs_microscopic_or_visible": [
+      "Tiny, maggot-like larvae (creamy white to orange) can be found if galls are carefully dissected.",
+      "Minute, mosquito-like adult midges may be seen swarming near new growth, especially in the early morning."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "anthracnose",
+      "condition_id": "mango.fungal.anthracnose",
+      "key_differences": [
+        "Anthracnose causes dark, sunken, irregular lesions on leaves and flowers, not raised, circular galls.",
+        "Gall midge damage results in a distinct raised or blister-like structure, while anthracnose spots are flat or sunken.",
+        "Under wet conditions, anthracnose lesions on panicles may show pinkish-orange spore masses, which are absent in gall midge damage.",
+        "Anthracnose leaf spots often have a 'shot-hole' appearance as the center dries; galls remain intact until the midge emerges."
+      ]
+    },
+    {
+      "condition_name": "bacterial canker",
+      "condition_id": "mango.bacterial.bacterial_canker",
+      "key_differences": [
+        "Bacterial canker produces angular, water-soaked leaf spots that turn black, not raised, rounded galls.",
+        "On stems, bacterial canker causes cracking and oozing of a gummy substance, whereas gall midge causes distinct swellings (galls).",
+        "Gall midge damage contains a larva within the gall, which can be found by dissection; bacterial canker is a tissue infection without an insect."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Prune and destroy infested plant parts such as galled leaves, shoots, and panicles.",
+      "Maintain good orchard sanitation by collecting and burning fallen leaves and debris to destroy pupae.",
+      "Avoid excessive nitrogen fertilization, which promotes excessive, susceptible new flushes.",
+      "Synchronize flowering within the orchard to shorten the period of tissue susceptibility."
+    ],
+    "biological": [
+      "Conserve and encourage natural enemies like parasitoid wasps (e.g., Platygaster spp., Systasis spp.) and predators like ants and spiders."
+    ],
+    "chemical": [
+      "Apply appropriate systemic or contact insecticides during new flush emergence or flowering stages.",
+      "Timing of sprays is critical and should target adult midges before egg-laying.",
+      "Monitor pest populations using traps or visual inspection to determine the need for and timing of chemical applications."
+    ],
+    "notes": "An Integrated Pest Management (IPM) approach is most effective, combining cultural and biological controls with judicious, well-timed chemical applications to minimize impact on pollinators."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/mango/healthy.json b/diseases_knowledge_base/mango/healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..da15c8efcc1bd89e568668a4620308a0521a7500
--- /dev/null
+++ b/diseases_knowledge_base/mango/healthy.json
@@ -0,0 +1,131 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "mango.healthy.healthy",
+  "aliases": [
+    "normal mango",
+    "unaffected mango",
+    "asymptomatic mango"
+  ],
+  "crop": {
+    "common_name": "mango",
+    "scientific_name": "Mangifera indica",
+    "family": "Anacardiaceae"
+  },
+  "condition": {
+    "common_name": "healthy",
+    "scientific_name": null,
+    "alt_names": [
+      "normal",
+      "asymptomatic",
+      "unaffected"
+    ],
+    "pathogen": {
+      "type": "abiotic",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "healthy",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Inadequate sunlight",
+      "Improper watering (over/under)",
+      "Nutrient deficiencies",
+      "Extreme temperatures",
+      "Poor air circulation"
+    ],
+    "temp_c_day": [
+      24,
+      30
+    ],
+    "temp_c_night": [
+      18,
+      24
+    ],
+    "relative_humidity_pct": [
+      50,
+      70
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "No visible symptoms of stress, disease, or pests. Plant exhibits vigorous growth.",
+    "moderate": "Not applicable for a healthy condition.",
+    "severe": "Not applicable for a healthy condition.",
+    "notes": "For a healthy plant, severity is not applicable. The rubric describes a state of 0% affected area and absence of any negative indicators."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uniformly green color, ranging from light green or reddish on new flushes to deep green on mature leaves.",
+      "Surface is typically smooth and can have a waxy or glossy appearance.",
+      "Leaf shape is lanceolate (lance-shaped) with entire (smooth) margins.",
+      "Absence of spots, lesions, pustules, holes, or powdery residues.",
+      "No signs of yellowing (chlorosis), browning (necrosis), curling, or distortion.",
+      "Veins are a similar color to the leaf blade and not darkened or water-soaked."
+    ],
+    "stems": [
+      "Stems, twigs, and branches are firm and turgid.",
+      "Bark is intact without cankers, galls, cracks, or gummosis (oozing sap)."
+    ],
+    "fruit": [
+      "Skin is smooth, unblemished, and free of spots, cracks, or lesions.",
+      "Color is uniform and appropriate for the cultivar and stage of ripeness."
+    ],
+    "roots": [
+      "Not typically visible in standard images."
+    ],
+    "whole_plant": [
+      "Dense, well-developed canopy with vigorous new growth flushes.",
+      "Upright and stable posture."
+    ],
+    "signs_microscopic_or_visible": [
+      "Complete absence of fungal mycelia, spores, bacterial ooze, insect bodies, frass, or honeydew."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "senescence_or_dry",
+      "condition_id": "mango.abiotic.senescence_or_dry",
+      "key_differences": [
+        "Healthy leaves are uniformly green, while senescent leaves turn uniformly yellow or brown before dropping.",
+        "Senescence primarily affects the oldest, lowest leaves on the plant, whereas the rest of the canopy remains healthy.",
+        "Drought stress causes browning and crisping at the leaf tips and margins, which is distinct from the overall green of a healthy leaf."
+      ]
+    },
+    {
+      "condition_name": "sooty_mold",
+      "condition_id": "mango.fungal.sooty_mold",
+      "key_differences": [
+        "Healthy leaves have a clean, often glossy surface.",
+        "Sooty mold presents as a superficial, black, velvety or crusty layer on the leaf surface that can often be physically wiped off.",
+        "The black coating of sooty mold is a sign of sap-sucking insects, which are absent on a clean, healthy leaf.",
+        "Sooty mold blocks light but does not directly damage the leaf tissue, which remains green underneath the coating."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Provide 6-8 hours of direct sunlight daily.",
+      "Plant in well-drained soil to prevent root rot.",
+      "Water deeply and regularly, allowing the top soil to dry out between waterings.",
+      "Apply a balanced fertilizer appropriate for fruit trees during active growth periods.",
+      "Prune annually to remove dead or crossing branches and improve air circulation within the canopy."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "Management for a healthy plant focuses on maintaining optimal growing conditions to prevent the onset of biotic and abiotic problems."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/mango/powdery_mildew.json b/diseases_knowledge_base/mango/powdery_mildew.json
new file mode 100644
index 0000000000000000000000000000000000000000..bee73ad5a0f603502f4beebd1ce33f3f2b8ca3f1
--- /dev/null
+++ b/diseases_knowledge_base/mango/powdery_mildew.json
@@ -0,0 +1,133 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "mango.disease_fungal.powdery_mildew",
+  "aliases": [
+    "mango blight",
+    "ashy blight"
+  ],
+  "crop": {
+    "common_name": "mango",
+    "scientific_name": "Mangifera indica",
+    "family": "Anacardiaceae"
+  },
+  "condition": {
+    "common_name": "powdery mildew",
+    "scientific_name": "Oidium mangiferae",
+    "alt_names": [],
+    "pathogen": {
+      "type": "fungus",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Leotiomycetes",
+        "order": "Erysiphales",
+        "family": "Erysiphaceae",
+        "genus": "Oidium",
+        "species": "mangiferae"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "wind"
+    ],
+    "overwintering": [
+      "dormant mycelium in buds",
+      "infected leaves and malformed panicles"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high relative humidity at night",
+      "cool, dry weather",
+      "cloudy conditions",
+      "dense canopy with poor air circulation"
+    ],
+    "temp_c_day": [
+      20,
+      28
+    ],
+    "temp_c_night": [
+      10,
+      22
+    ],
+    "relative_humidity_pct": [
+      60,
+      90
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of the surface of leaves, panicles, or fruit covered in sparse, white fungal growth.",
+    "moderate": "11-40% of surface area affected; patches are coalescing and some leaf curling or flower drop is evident.",
+    "severe": ">40% of surface area covered, leading to severe leaf distortion, blighting of panicles, or fruit russeting and cracking.",
+    "notes": "Assessment should focus on the most affected plant part in the image (e.g., a single leaf, a flower cluster, or a fruit). The percentage refers to the area covered by the visible white fungal sign. Powdery mildew does not require free water (leaf wetness) to infect."
+  },
+  "symptoms": {
+    "leaves": [
+      "White to grayish, powdery fungal growth on upper and lower leaf surfaces.",
+      "Initial symptoms are small, isolated, white patches.",
+      "Patches coalesce to cover large areas of the leaf.",
+      "Infected young leaves may become curled, distorted, and smaller than normal.",
+      "Older lesions may turn purplish-brown or black as the tissue dies."
+    ],
+    "stems": [
+      "White powdery growth can cover young, succulent shoots and panicle axes."
+    ],
+    "fruit": [
+      "White powdery patches appear on the skin of young, developing fruit.",
+      "Infected fruit skin develops a purplish-brown, corky, or russeted appearance.",
+      "Severe infection may cause young fruit to crack, deform, or drop prematurely."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Infected inflorescences (panicles) appear blighted and are heavily coated in white powder.",
+      "Severe infection causes widespread flower drop, leading to poor fruit set."
+    ],
+    "signs_microscopic_or_visible": [
+      "The primary sign is the white, superficial mycelium and conidia, which can be easily rubbed off the plant surface."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "sooty_mold",
+      "condition_id": "mango.disease_fungal.sooty_mold",
+      "key_differences": [
+        "Sooty mold is a black or dark brown, crust-like layer, whereas powdery mildew is white or grayish and has a powdery texture.",
+        "Sooty mold grows on insect honeydew and can often be washed or peeled off in a sheet, revealing healthy tissue underneath.",
+        "Powdery mildew is a parasitic infection that causes tissue distortion, discoloration, and necrosis beneath the fungal growth."
+      ]
+    },
+    {
+      "condition_name": "anthracnose",
+      "condition_id": "mango.disease_fungal.anthracnose",
+      "key_differences": [
+        "Anthracnose causes distinct, dark brown to black, sunken, necrotic lesions on leaves and fruit, not a superficial coating.",
+        "Powdery mildew is a white, powdery growth that covers the plant surface without causing discrete, sunken spots initially.",
+        "In humid conditions, anthracnose lesions on fruit may produce pinkish-orange spore masses, which are absent in powdery mildew.",
+        "Anthracnose often causes a 'tear stain' pattern on fruit, while powdery mildew causes a more uniform russeting or scabbing."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Prune trees annually to improve air circulation and sunlight penetration into the canopy.",
+      "Remove and destroy fallen leaves and infected panicles to reduce inoculum.",
+      "Choose resistant mango cultivars where available.",
+      "Avoid excessive nitrogen fertilization, which promotes susceptible new growth."
+    ],
+    "biological": [
+      "Application of bio-fungicides containing *Bacillus subtilis* or *Ampelomyces quisqualis*.",
+      "Use of neem oil or other horticultural oils can be effective as an eradicant and protectant."
+    ],
+    "chemical": [
+      "Application of wettable sulfur fungicides before and during the flowering period.",
+      "Use of systemic fungicides such as triazoles (e.g., myclobutanil, propiconazole) or strobilurins, rotating chemical classes to prevent resistance.",
+      "Potassium bicarbonate-based fungicides can be used to disrupt fungal cells on contact."
+    ],
+    "notes": "Preventative fungicide sprays are most effective. Timing is critical, beginning at panicle emergence and continuing through fruit set, especially during cool, dry, and cloudy weather."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/mango/senescence_or_dry.json b/diseases_knowledge_base/mango/senescence_or_dry.json
new file mode 100644
index 0000000000000000000000000000000000000000..081e8e86328d854ad985068ffa82c531105a2018
--- /dev/null
+++ b/diseases_knowledge_base/mango/senescence_or_dry.json
@@ -0,0 +1,129 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "mango.physiological_symptom.senescence_or_dry",
+  "aliases": [
+    "Leaf drying",
+    "Leaf scorch",
+    "Drought stress",
+    "Water stress",
+    "Natural aging"
+  ],
+  "crop": {
+    "common_name": "Mango",
+    "scientific_name": "Mangifera indica",
+    "family": "Anacardiaceae"
+  },
+  "condition": {
+    "common_name": "Senescence or Dry",
+    "scientific_name": null,
+    "alt_names": [
+      "Leaf senescence",
+      "Water deficit symptom",
+      "Tip burn"
+    ],
+    "pathogen": {
+      "type": "Abiotic",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "physiological_symptom",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Inadequate irrigation or drought",
+      "High ambient temperatures",
+      "Low relative humidity",
+      "Poor soil water retention",
+      "Root damage or compaction",
+      "Nutrient deficiency (e.g., potassium)",
+      "Natural end of leaf lifespan"
+    ],
+    "temp_c_day": [
+      35,
+      45
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      10,
+      40
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area shows yellowing or browning, typically confined to the leaf tip or extreme margins.",
+    "moderate": "11-40% of the leaf area is affected, with significant browning and curling spreading from the margins inward.",
+    "severe": ">40% of the leaf area is brown, brittle, and necrotic; widespread leaf drop may be evident.",
+    "notes": "Severity is assessed as the percentage of a single leaf's surface showing symptoms. For whole-plant assessment, consider the proportion of leaves exhibiting symptoms."
+  },
+  "symptoms": {
+    "leaves": [
+      "Progressive yellowing (chlorosis) that typically starts on older, lower leaves.",
+      "Leaf tips and margins turn tan to dark brown, becoming dry and brittle.",
+      "A distinct boundary may exist between the necrotic brown tissue and the green tissue.",
+      "Affected leaves may curl inwards or droop (wilt).",
+      "The texture of necrotic areas is papery or crispy.",
+      "In severe cases, the entire leaf turns brown and abscises (drops) prematurely."
+    ],
+    "stems": [
+      "Young, non-woody stems and petioles may wilt or droop.",
+      "In cases of prolonged drought, terminal shoot dieback can occur."
+    ],
+    "fruit": [
+      "Under severe water stress, fruit may shrivel, develop sunburn, or drop prematurely."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "A general wilted or drooping appearance, especially during the hottest part of the day.",
+      "Reduced plant vigor and stunted growth."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Anthracnose",
+      "condition_id": "mango.fungal_disease.anthracnose",
+      "key_differences": [
+        "Anthracnose causes distinct, dark brown to black, angular or irregular spots, often with a 'shot-hole' appearance, unlike the marginal browning of senescence.",
+        "Anthracnose lesions can appear anywhere on the leaf, including on young leaves, while senescence typically begins on the margins of older leaves.",
+        "In humid conditions, anthracnose lesions may exhibit tiny pinkish-orange spore masses (acervuli), which are absent in physiological drying."
+      ]
+    },
+    {
+      "condition_name": "Dieback",
+      "condition_id": "mango.fungal_disease.dieback",
+      "key_differences": [
+        "Dieback is the progressive death of a branch from the tip downwards, affecting the entire woody structure, whereas senescence is a leaf-specific condition.",
+        "Senescence causes leaves to yellow and brown, while dieback causes entire twigs and branches to dry out, often with leaves still attached.",
+        "If a dieback-affected stem is cut, the internal vascular tissue will be discolored (brown/black), a symptom not associated with leaf senescence."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Provide consistent and adequate irrigation, especially during fruit development and dry seasons.",
+      "Apply a layer of organic mulch around the tree base to conserve soil moisture and regulate soil temperature.",
+      "Ensure proper soil drainage to prevent root suffocation, which can mimic drought symptoms.",
+      "Conduct soil and leaf analysis to identify and correct nutrient deficiencies, particularly potassium.",
+      "Protect young trees from extreme sun and wind exposure."
+    ],
+    "biological": [],
+    "chemical": [
+      "Application of potassium-based fertilizers if a deficiency is confirmed.",
+      "Use of anti-transpirant sprays can sometimes help reduce water loss in high-stress periods, but is not a substitute for proper irrigation."
+    ],
+    "notes": "Management is entirely focused on correcting the underlying abiotic stress, primarily related to water and nutrient management."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/mango/sooty_mold.json b/diseases_knowledge_base/mango/sooty_mold.json
new file mode 100644
index 0000000000000000000000000000000000000000..115224d9857150953e43666871e6ba6d0fa3e69e
--- /dev/null
+++ b/diseases_knowledge_base/mango/sooty_mold.json
@@ -0,0 +1,135 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "mango.disease_fungal.sooty_mold",
+  "aliases": [
+    "black mold",
+    "sooty blotch"
+  ],
+  "crop": {
+    "common_name": "mango",
+    "scientific_name": "Mangifera indica",
+    "family": "Anacardiaceae"
+  },
+  "condition": {
+    "common_name": "sooty mold",
+    "scientific_name": "Complex of various saprophytic fungi, e.g., Capnodium, Meliola, Leptoxyphium, Scorias spp.",
+    "alt_names": [
+      "black mold"
+    ],
+    "pathogen": {
+      "type": "fungus",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [
+      "scale insects",
+      "mealybugs",
+      "aphids",
+      "whiteflies"
+    ],
+    "dispersal": [
+      "wind",
+      "rain_splash"
+    ],
+    "overwintering": [
+      "Mycelium on host plant surfaces and in honeydew deposits",
+      "Overwintering stages of causal insects"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High populations of honeydew-producing insects",
+      "High relative humidity",
+      "Poor air circulation within the plant canopy",
+      "Shaded or dense foliage"
+    ],
+    "temp_c_day": [],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 12
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "< 10% of leaf, stem, or fruit surface is covered by a thin, patchy black coating.",
+    "moderate": "10-40% of surfaces are covered with a more continuous, but still relatively thin, layer of black mold.",
+    "severe": "> 40% of surfaces are covered with a thick, dense, black, often felty or crusty layer that may peel off.",
+    "notes": "Severity is based on the surface area covered by the superficial fungal growth. This is a secondary problem resulting from insect honeydew; the mold itself is not parasitic but blocks sunlight, reducing photosynthesis."
+  },
+  "symptoms": {
+    "leaves": [
+      "A superficial, black, soot-like coating on the upper leaf surface.",
+      "The black fungal layer can be easily rubbed or wiped off the leaf.",
+      "In severe cases, the coating becomes a thick, felty or crusty mat that can peel away.",
+      "Underlying leaf tissue may turn yellow (chlorosis) due to blockage of sunlight.",
+      "A clear, sticky substance (honeydew) is often present beneath or near the mold."
+    ],
+    "stems": [
+      "Black, sooty growth covers twigs and branches, especially where honeydew accumulates."
+    ],
+    "fruit": [
+      "Superficial black blemishes or patches on the fruit skin.",
+      "The mold does not cause fruit rot but significantly reduces marketability.",
+      "The black coating can typically be washed or wiped off the fruit."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Plant appears dirty, as if covered in a layer of black soot.",
+      "Reduced plant vigor in severe infestations due to impaired photosynthesis.",
+      "Associated with visible colonies of scale insects, mealybugs, or other sap-sucking insects."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible black mycelial threads forming a mat on plant surfaces.",
+      "Presence of the causal insects (e.g., scale insect shells, mealybug cottony masses) on leaves and stems."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "anthracnose",
+      "condition_id": "mango.disease_fungal.anthracnose",
+      "key_differences": [
+        "Sooty mold is a superficial black coating that can be rubbed off; anthracnose causes dark, sunken, necrotic lesions that are part of the plant tissue.",
+        "Sooty mold growth is diffuse and follows honeydew drips; anthracnose lesions are typically more defined, often with a distinct border.",
+        "Anthracnose can cause blossom blight and fruit rot, whereas sooty mold is only a surface blemish."
+      ]
+    },
+    {
+      "condition_name": "powdery_mildew",
+      "condition_id": "mango.disease_fungal.powdery_mildew",
+      "key_differences": [
+        "Sooty mold is black or very dark brown; powdery mildew is white to light gray.",
+        "Sooty mold is a secondary growth on honeydew; powdery mildew is a primary pathogen growing directly on plant tissue.",
+        "Powdery mildew often causes distortion, curling, and blistering of young leaves, which is not characteristic of sooty mold."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Control the primary infestation of honeydew-producing insects (e.g., scales, mealybugs, aphids).",
+      "Prune canopy to improve air circulation and sunlight penetration, creating less favorable conditions for mold growth.",
+      "Wash affected plant parts with a strong spray of water, sometimes with a mild soap or horticultural oil, to remove both insects and mold.",
+      "Maintain balanced plant nutrition to avoid promoting excessive, soft growth that attracts sucking insects."
+    ],
+    "biological": [
+      "Encourage or release natural predators and parasitoids of sap-sucking insects, such as lady beetles, lacewings, and parasitic wasps."
+    ],
+    "chemical": [
+      "Apply horticultural oils or insecticidal soaps to suffocate and control causal insects.",
+      "Use systemic or contact insecticides targeted at the specific sap-sucking insect present, following local guidelines.",
+      "Fungicides are generally not recommended or effective for sooty mold, as the problem is the insect-produced honeydew."
+    ],
+    "notes": "Management must target the root cause: the insects producing honeydew. Once the insects are controlled, the sooty mold will gradually weather away."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/mango/weevil.json b/diseases_knowledge_base/mango/weevil.json
new file mode 100644
index 0000000000000000000000000000000000000000..b8fac5c383e944f9e5facd733ad9c1554a13308d
--- /dev/null
+++ b/diseases_knowledge_base/mango/weevil.json
@@ -0,0 +1,144 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "mango.pest_insect.weevil",
+  "aliases": [
+    "mango seed weevil",
+    "mango nut weevil",
+    "mango stone weevil"
+  ],
+  "crop": {
+    "common_name": "mango",
+    "scientific_name": "Mangifera indica",
+    "family": "Anacardiaceae"
+  },
+  "condition": {
+    "common_name": "Mango weevil",
+    "scientific_name": "Sternochetus mangiferae",
+    "alt_names": [
+      "mango seed weevil"
+    ],
+    "pathogen": {
+      "type": "insect",
+      "taxonomy": {
+        "kingdom": "Animalia",
+        "phylum": "Arthropoda",
+        "class": "Insecta",
+        "order": "Coleoptera",
+        "family": "Curculionidae",
+        "genus": "Sternochetus",
+        "species": "mangiferae"
+      }
+    }
+  },
+  "issue_type": "pest_insect",
+  "transmission": {
+    "vectors": [
+      "adult weevil"
+    ],
+    "dispersal": [
+      "infested fruit transport",
+      "adult flight"
+    ],
+    "overwintering": [
+      "adults in bark crevices",
+      "under plant debris",
+      "larvae/pupae inside fallen fruit/seeds"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Presence of fallen, uncollected fruit",
+      "Nearby infested orchards",
+      "Poor orchard sanitation"
+    ],
+    "temp_c_day": [
+      25,
+      35
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      60,
+      90
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Few fruits (<10%) show single oviposition scars or minor sap ooze. Internal damage is rare upon inspection.",
+    "moderate": "Multiple fruits (10-40%) show external signs. Some premature fruit drop may be observed. Weevils found in a notable portion of cut-open fruit.",
+    "severe": "Widespread fruit damage (>40%), significant premature fruit drop. High percentage of seeds are infested. Adult weevils may be visible on the tree.",
+    "notes": "Severity is best assessed by inspecting fallen or harvested fruit, as early signs are subtle. Cutting fruit open is required for confirmation of internal damage."
+  },
+  "symptoms": {
+    "leaves": [
+      "Adult feeding may cause small, irregular notches on the edges of tender leaves."
+    ],
+    "stems": [
+      "Adult weevils may be seen resting on twigs and branches, especially at night."
+    ],
+    "fruit": [
+      "Small, dark, crescent-shaped or V-shaped oviposition scars on the skin of young fruit.",
+      "Clear, amber, or brownish sap oozing from egg-laying punctures, which later dries.",
+      "A hardened, resinous, dark brown spot on the fruit skin at the point of larval entry.",
+      "Premature drop of infested young fruit.",
+      "Internal tunneling and feeding damage within the seed/stone, visible when cut.",
+      "A large, circular exit hole (~8-10mm) in the stone and fruit pulp after the adult emerges.",
+      "Discolored, rotting pulp immediately surrounding the infested seed."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Reduced yield due to premature fruit drop and unmarketable fruit."
+    ],
+    "signs_microscopic_or_visible": [
+      "Dark grey or brown, stout-bodied, snout-nosed adult weevils (~6-9 mm long).",
+      "White, legless, C-shaped grubs (larvae) found inside the seed when cut open."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Gall midge",
+      "condition_id": "mango.pest_insect.gall_midge",
+      "key_differences": [
+        "Gall midge causes small, raised, circular black galls on fruit skin, not crescent-shaped scars.",
+        "Gall midge damage is superficial, creating pimple-like spots, whereas weevil damage is deep, leading to the seed.",
+        "Gall midge larvae are tiny pinkish maggots found just under the skin, not large white grubs inside the seed."
+      ]
+    },
+    {
+      "condition_name": "Anthracnose",
+      "condition_id": "mango.fungal.anthracnose",
+      "key_differences": [
+        "Anthracnose causes large, dark, sunken, irregular blotches on fruit, not a small, distinct puncture mark.",
+        "Anthracnose lesions may produce pinkish spore masses in humid weather, which is absent in weevil damage.",
+        "Weevil damage originates from a single point and goes inward; anthracnose spreads across the fruit surface.",
+        "Anthracnose also causes severe leaf spotting and blossom blight, which are not primary symptoms of weevils."
+      ]
+    },
+    {
+      "condition_name": "Bacterial canker",
+      "condition_id": "mango.bacterial.canker",
+      "key_differences": [
+        "Bacterial canker causes angular, water-soaked, black lesions that crack open, unlike the sealed puncture of a weevil.",
+        "Ooze from bacterial canker is a gummy, bacterial exudate, distinct from the clearer sap from a weevil oviposition site.",
+        "The primary damage from weevil is a grub inside the seed, not a bacterial infection causing rot throughout the pulp."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Implement strict orchard sanitation by collecting and destroying all fallen fruit and seeds to break the pest's life cycle.",
+      "Prune trees to maintain an open canopy, which can deter adult weevils.",
+      "Harvest fruit as early as commercially viable to reduce the window for infestation."
+    ],
+    "biological": [
+      "Application of entomopathogenic fungi (e.g., Beauveria bassiana) to target adult weevils.",
+      "Conservation of natural enemies, such as weaver ants (Oecophylla smaragdina), which are known predators."
+    ],
+    "chemical": [
+      "Apply registered insecticides to the canopy, targeting adult weevils before they lay eggs on young fruit.",
+      "Timing of sprays is critical and should coincide with fruit development (marble to golf-ball size).",
+      "Consult local extension services for recommended active ingredients and application schedules."
+    ],
+    "notes": "Control must target the adult weevil stage, as larvae developing inside the seed are protected from most chemical treatments."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/orange/huanglongbing.json b/diseases_knowledge_base/orange/huanglongbing.json
new file mode 100644
index 0000000000000000000000000000000000000000..4d56070f37bab975290b626b49ba26ae7d98b19e
--- /dev/null
+++ b/diseases_knowledge_base/orange/huanglongbing.json
@@ -0,0 +1,115 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "orange.unknown.huanglongbing",
+  "aliases": [
+    "HLB",
+    "citrus greening",
+    "yellow dragon disease"
+  ],
+  "crop": {
+    "common_name": "orange",
+    "scientific_name": "Citrus \u00d7 sinensis",
+    "family": "Rutaceae"
+  },
+  "condition": {
+    "common_name": "Huanglongbing",
+    "scientific_name": "Candidatus Liberibacter asiaticus",
+    "alt_names": [
+      "HLB",
+      "citrus greening disease"
+    ],
+    "pathogen": {
+      "type": "bacterium",
+      "taxonomy": {
+        "kingdom": "Bacteria",
+        "phylum": "Pseudomonadota",
+        "class": "Alphaproteobacteria",
+        "order": "Rhizobiales",
+        "family": "Rhizobiaceae",
+        "genus": "Candidatus Liberibacter",
+        "species": "asiaticus"
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [
+      "Asian citrus psyllid (Diaphorina citri)",
+      "African citrus psyllid (Trioza erytreae)"
+    ],
+    "dispersal": [
+      "Movement of infected plant material (grafting, nursery stock)",
+      "Insect vector flight"
+    ],
+    "overwintering": [
+      "In infected citrus trees (perennial host)"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Presence of psyllid vectors",
+      "Temperatures favorable for psyllid development and pathogen multiplication",
+      "Proximity to infected groves"
+    ],
+    "temp_c_day": [
+      25,
+      32
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "One or a few branches show blotchy mottle symptoms; fruit may be asymptomatic or slightly misshapen.",
+    "moderate": "Symptoms widespread on multiple limbs; significant leaf yellowing and drop; obvious fruit deformity and quality reduction.",
+    "severe": "Canopy is thin and sparse; extensive twig dieback; most fruit are small, green, and unmarketable; tree is in severe decline.",
+    "notes": "Severity reflects the systemic progression of the disease throughout the tree over time, not just the symptoms on a single leaf. HLB is a systemic disease, and severity is often assessed on a whole-plant basis."
+  },
+  "symptoms": {
+    "leaves": [
+      "Asymmetrical, blotchy yellowing (mottling) that crosses leaf veins, not restricted by the midrib.",
+      "Overall yellowing of leaves, resembling a nutrient deficiency, but with a non-symmetrical pattern.",
+      "Veins may appear thickened and corky.",
+      "Leaves may be smaller than normal and stand upright.",
+      "Premature leaf drop leading to a thin canopy."
+    ],
+    "stems": [
+      "Twig and branch dieback as the disease progresses."
+    ],
+    "fruit": [
+      "Lopsided or misshapen fruit, often smaller than normal.",
+      "Color inversion, where the stylar (blossom) end stays green while the stem end turns orange.",
+      "Fruit remains hard and does not ripen properly.",
+      "Seeds are small, dark, and aborted.",
+      "Juice is bitter with low sugar content."
+    ],
+    "roots": [
+      "Root system decay and feeder root loss, which often precedes visible canopy symptoms."
+    ],
+    "whole_plant": [
+      "Stunted growth and overall decline.",
+      "Sparse, thin canopy.",
+      "Out-of-season or off-bloom flowering."
+    ],
+    "signs_microscopic_or_visible": [
+      "Presence of Asian citrus psyllid adults, nymphs, or their waxy tubules on new growth."
+    ]
+  },
+  "lookalikes": [],
+  "management": {
+    "cultural": [
+      "Remove and destroy infected trees (roguing) to eliminate inoculum sources.",
+      "Use certified disease-free nursery stock for planting.",
+      "Implement area-wide management programs to coordinate psyllid vector control."
+    ],
+    "biological": [
+      "Conservation and release of natural enemies of the psyllid vector (e.g., the parasitoid wasp Tamarixia radiata)."
+    ],
+    "chemical": [
+      "Coordinated insecticide applications targeting psyllid vectors, especially during flush periods.",
+      "Application of enhanced nutritional programs to mitigate symptom expression and prolong productivity in infected trees."
+    ],
+    "notes": "There is no cure for HLB. Management focuses on preventing new infections by controlling the insect vector and removing infected trees to reduce inoculum."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/papaya/anthracnose.json b/diseases_knowledge_base/papaya/anthracnose.json
new file mode 100644
index 0000000000000000000000000000000000000000..92e153793099e0e6dd0c70d6c9b91a9c0eeb056b
--- /dev/null
+++ b/diseases_knowledge_base/papaya/anthracnose.json
@@ -0,0 +1,118 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "papaya.disease_fungal.anthracnose",
+  "aliases": [
+    "papaya anthracnose",
+    "ripe fruit rot",
+    "blossom-end rot"
+  ],
+  "crop": {
+    "common_name": "papaya",
+    "scientific_name": "Carica papaya",
+    "family": "Caricaceae"
+  },
+  "condition": {
+    "common_name": "Anthracnose",
+    "scientific_name": "Colletotrichum gloeosporioides",
+    "alt_names": [
+      "Ripe Fruit Rot"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Sordariomycetes",
+        "order": "Glomerellales",
+        "family": "Glomerellaceae",
+        "genus": "Colletotrichum",
+        "species": "gloeosporioides"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "rain splash",
+      "wind",
+      "contaminated tools",
+      "infected fruit",
+      "infected seeds"
+    ],
+    "overwintering": [
+      "infected plant debris",
+      "lesions on stems and petioles",
+      "mummified fruit"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high humidity",
+      "frequent rainfall",
+      "warm temperatures",
+      "poor air circulation",
+      "fruit injury or bruising"
+    ],
+    "temp_c_day": [
+      25,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      90,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 12
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "A few small, scattered lesions on leaves; 1-2 small (<1 cm) spots on a single fruit.",
+    "moderate": "Multiple lesions on several leaves, some coalescing; several distinct lesions on fruit, covering up to 25% of the surface.",
+    "severe": "Extensive leaf spotting, blight, and defoliation; large, sunken, coalescing lesions on fruit covering >25% of the surface, often with visible pink/orange spore masses.",
+    "notes": "Severity is most critical on fruit due to marketability. A qualitative assessment is practical as it combines leaf and fruit symptoms. The presence of visible spore masses often indicates moderate to severe infection."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, water-soaked spots appear, often on older, lower leaves.",
+      "Spots enlarge into irregular, brown to black necrotic lesions.",
+      "Lesions may develop a 'shot-hole' appearance as necrotic centers fall out.",
+      "In severe infections, leaves may yellow and drop prematurely."
+    ],
+    "stems": [
+      "Elongated, sunken, dark lesions can form on petioles."
+    ],
+    "fruit": [
+      "Small, circular, water-soaked spots appear on ripening or ripe fruit.",
+      "Spots enlarge rapidly, becoming sunken, circular, and black.",
+      "Center of mature fruit lesions develops pink to orange gelatinous spore masses (acervuli), often in concentric rings.",
+      "Lesions can coalesce to cover large areas of the fruit surface.",
+      "Infection penetrates the flesh, causing a bitter rot."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Premature fruit drop may occur in heavily infected plants."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible pinkish-orange, gelatinous spore masses (acervuli) in the center of mature fruit lesions, especially under humid conditions."
+    ]
+  },
+  "lookalikes": [],
+  "management": {
+    "cultural": [
+      "Improve air circulation via proper plant spacing and pruning of lower leaves.",
+      "Practice field sanitation by removing and destroying infected plant debris and mummified fruit.",
+      "Avoid overhead irrigation to minimize leaf and fruit wetness duration.",
+      "Handle fruit carefully during harvest and transport to prevent wounds.",
+      "Harvest fruit at the mature-green stage."
+    ],
+    "biological": [
+      "Application of antagonists like *Bacillus subtilis* or *Trichoderma* species can have a suppressive effect as part of an IPM program."
+    ],
+    "chemical": [
+      "Apply preventative fungicides (e.g., mancozeb, copper-based, azoxystrobin) during weather favorable for disease development.",
+      "Post-harvest hot water treatment (e.g., 48\u00b0C for 20 minutes) or fungicide dips can control latent infections on fruit."
+    ],
+    "notes": "An integrated disease management (IDM) approach is essential, combining sanitation, cultural practices, and judicious fungicide use. Post-harvest treatments are critical for extending shelf life."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/papaya/bacterial_blight_spot.json b/diseases_knowledge_base/papaya/bacterial_blight_spot.json
new file mode 100644
index 0000000000000000000000000000000000000000..234e958e019926736132ae0f0c78dbbb3c2f87c7
--- /dev/null
+++ b/diseases_knowledge_base/papaya/bacterial_blight_spot.json
@@ -0,0 +1,140 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "papaya.disease_bacterial.bacterial_blight_spot",
+  "aliases": [
+    "bacterial leaf spot",
+    "bacterial canker",
+    "bacterial black spot"
+  ],
+  "crop": {
+    "common_name": "papaya",
+    "scientific_name": "Carica papaya",
+    "family": "Caricaceae"
+  },
+  "condition": {
+    "common_name": "bacterial blight spot",
+    "scientific_name": "Erwinia papayae",
+    "alt_names": [
+      "bacterial leaf and fruit spot",
+      "bacterial canker of papaya"
+    ],
+    "pathogen": {
+      "type": "disease_bacterial",
+      "taxonomy": {
+        "kingdom": "Bacteria",
+        "phylum": "Proteobacteria",
+        "class": "Gammaproteobacteria",
+        "order": "Enterobacterales",
+        "family": "Erwiniaceae",
+        "genus": "Erwinia",
+        "species": "E. papayae"
+      }
+    }
+  },
+  "issue_type": "disease_bacterial",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "rain splash",
+      "wind-driven rain",
+      "contaminated pruning tools",
+      "infected seeds",
+      "irrigation water"
+    ],
+    "overwintering": [
+      "infected plant debris on the ground",
+      "active cankers on stems and petioles",
+      "infected seeds"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high humidity",
+      "prolonged leaf wetness",
+      "warm temperatures",
+      "wounding from hail or mechanical damage",
+      "poor air circulation"
+    ],
+    "temp_c_day": [
+      25,
+      32
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 10
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "< 5% of leaf or fruit surface area affected with small, isolated lesions.",
+    "moderate": "5-25% of surface area affected; some lesions may be coalescing.",
+    "severe": "> 25% of surface area affected; extensive necrosis, blight, stem cankers, or fruit rot is present.",
+    "notes": "Severity is assessed on the most affected plant part visible. The presence of large stem cankers or significant bacterial ooze may automatically classify the condition as severe."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, angular, water-soaked spots appear, often bounded by leaf veins.",
+      "Lesions enlarge and turn dark brown to black with a characteristic greasy appearance.",
+      "A distinct yellow halo frequently surrounds the dark lesions.",
+      "In severe cases, lesions merge, causing large necrotic areas, leaf shredding, and defoliation (blight).",
+      "Petioles can develop elongated, dark, water-soaked streaks or cankers."
+    ],
+    "stems": [
+      "Water-soaked, dark cankers can form on the main stem, particularly at leaf and fruit nodes.",
+      "Cankers may exude a gummy, whitish bacterial ooze in humid conditions."
+    ],
+    "fruit": [
+      "Small, circular, water-soaked spots appear on young, green fruit.",
+      "Fruit spots enlarge, become sunken, and turn dark brown to black.",
+      "A sticky, clear to whitish bacterial ooze may be present on fruit lesions.",
+      "Infected fruit often rots internally and drops from the plant prematurely."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Stunted growth and significant defoliation in severe, systemic infections.",
+      "Dieback of the growing point ('top rot') can occur."
+    ],
+    "signs_microscopic_or_visible": [
+      "Bacterial ooze (a sticky, whitish or amber-colored exudate) emerging from lesions on fruit, stems, or petioles, especially in high humidity."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "anthracnose",
+      "condition_id": "papaya.disease_fungal.anthracnose",
+      "key_differences": [
+        "Anthracnose lesions on fruit are circular, sunken, and often feature pinkish-orange spore masses (acervuli) in the center, unlike the whitish bacterial ooze of blight.",
+        "Bacterial blight spots on leaves are distinctly angular and vein-limited with a greasy look, whereas anthracnose spots are more circular or irregular.",
+        "Bacterial blight produces a characteristic foul odor in rotting tissues, which is absent in anthracnose."
+      ]
+    },
+    {
+      "condition_name": "ringspot_virus",
+      "condition_id": "papaya.disease_viral.ringspot_virus",
+      "key_differences": [
+        "Ringspot virus causes systemic mosaic, mottling, and yellowing patterns, not discrete, necrotic, water-soaked spots.",
+        "PRSV leads to severe leaf distortion and a 'shoestring' appearance in new growth, which are not symptoms of bacterial blight.",
+        "Fruit symptoms of PRSV are distinctive concentric rings or C-shaped markings, completely different from the sunken, dark, rotting spots of bacterial blight."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified disease-free seeds and planting material.",
+      "Remove and destroy infected plant debris, including fallen leaves and fruit.",
+      "Improve air circulation through proper plant spacing and selective pruning.",
+      "Avoid overhead irrigation to minimize leaf wetness duration.",
+      "Disinfect pruning tools with a 10% bleach solution or alcohol between plants."
+    ],
+    "biological": [
+      "Application of microbial products containing *Bacillus subtilis* strains may provide some preventative suppression."
+    ],
+    "chemical": [
+      "Preventative applications of copper-based bactericides (e.g., copper hydroxide, copper oxychloride) can be effective if applied before rainy seasons.",
+      "Always check local regulations and extension recommendations for registered products and application timing."
+    ],
+    "notes": "Chemical treatments are primarily preventative and are often ineffective once the disease is well-established. Integrated management focusing on cultural practices is key."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/papaya/healthy.json b/diseases_knowledge_base/papaya/healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..99dc1e1f9124bb9d5af57b61c270bf69aafff4c6
--- /dev/null
+++ b/diseases_knowledge_base/papaya/healthy.json
@@ -0,0 +1,137 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "papaya.healthy.healthy",
+  "aliases": [
+    "normal papaya",
+    "unaffected papaya",
+    "asymptomatic"
+  ],
+  "crop": {
+    "common_name": "papaya",
+    "scientific_name": "Carica papaya",
+    "family": "Caricaceae"
+  },
+  "condition": {
+    "common_name": "healthy",
+    "scientific_name": "",
+    "alt_names": [
+      "normal",
+      "asymptomatic",
+      "no disease"
+    ],
+    "pathogen": {
+      "type": "none",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "healthy",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Optimal growing conditions",
+      "Absence of pathogens and pests",
+      "Balanced nutrition",
+      "Adequate water"
+    ],
+    "temp_c_day": [
+      21,
+      33
+    ],
+    "temp_c_night": [
+      18,
+      24
+    ],
+    "relative_humidity_pct": [
+      60,
+      80
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Not applicable. Plant is healthy.",
+    "moderate": "Not applicable. Plant is healthy.",
+    "severe": "Not applicable. Plant is healthy.",
+    "notes": "Severity scoring does not apply to a healthy plant. Any visible damage or symptoms would classify it as unhealthy."
+  },
+  "symptoms": {
+    "leaves": [
+      "Deep green, uniform coloration without yellowing or mottling.",
+      "Large, palmately-lobed leaves with smooth, intact margins.",
+      "Leaf surfaces are glossy and free of spots, lesions, or powdery residue.",
+      "Petioles are firm, turgid, and uniformly green.",
+      "No signs of curling, distortion, or wilting."
+    ],
+    "stems": [
+      "Main trunk is straight, sturdy, and unblemished.",
+      "Stem surface is typically green to grayish-green, with prominent leaf scars.",
+      "No cankers, soft spots, or oozing sap."
+    ],
+    "fruit": [
+      "Fruit skin is smooth, firm, and uniformly colored (green when immature, turning yellow/orange when ripe).",
+      "No sunken spots, lesions, or rings on the fruit surface.",
+      "Fruit is well-formed and not misshapen."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Vigorous, upright growth habit.",
+      "Dense canopy of healthy leaves at the top of the plant."
+    ],
+    "signs_microscopic_or_visible": [
+      "Absence of any visible fungal growth, bacterial ooze, insect colonies, or webbing."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "mosaic virus",
+      "condition_id": "papaya.viral.mosaic_virus",
+      "key_differences": [
+        "Healthy leaves have uniform green color, whereas mosaic virus causes light green/yellow patches or mottling.",
+        "Healthy leaves have a normal, flat shape; mosaic virus can cause blistering or slight distortion of the leaf lamina.",
+        "Veins on healthy leaves are uniformly green; mosaic virus can cause vein clearing (yellowing of veins)."
+      ]
+    },
+    {
+      "condition_name": "spider mites",
+      "condition_id": "papaya.pest.spider_mites",
+      "key_differences": [
+        "Healthy leaves have a clean, glossy surface; spider mite infestation causes fine stippling (tiny yellow/white dots).",
+        "The underside of a healthy leaf is clean; spider mites create fine, silky webbing, especially on the underside.",
+        "Healthy leaves are deep green; heavy mite feeding can cause leaves to appear bronzed or yellowed."
+      ]
+    },
+    {
+      "condition_name": "ringspot virus",
+      "condition_id": "papaya.viral.ringspot_virus",
+      "key_differences": [
+        "Healthy stems and petioles are uniformly green; ringspot virus can cause dark green, 'oily' streaks.",
+        "Healthy fruit has smooth, unblemished skin; ringspot virus causes characteristic concentric rings on the fruit.",
+        "Healthy leaves are uniformly colored; ringspot virus can cause a distinct mosaic or mottling pattern, especially on younger leaves."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant certified virus-free seedlings.",
+      "Ensure well-drained soil to prevent root rot.",
+      "Maintain proper spacing for good air circulation.",
+      "Practice good field sanitation, removing weeds and crop debris.",
+      "Provide balanced fertilization and consistent irrigation."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "Management for a healthy plant focuses on preventative practices to maintain vigor and minimize stress, which reduces susceptibility to pests and diseases."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/papaya/leaf_curl_virus.json b/diseases_knowledge_base/papaya/leaf_curl_virus.json
new file mode 100644
index 0000000000000000000000000000000000000000..3a004f505472dbc3876deddea00c47b12732515d
--- /dev/null
+++ b/diseases_knowledge_base/papaya/leaf_curl_virus.json
@@ -0,0 +1,136 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "papaya.disease_viral.leaf_curl_virus",
+  "aliases": [
+    "Papaya Leaf Curl Disease",
+    "PLCD",
+    "PaLCuV"
+  ],
+  "crop": {
+    "common_name": "papaya",
+    "scientific_name": "Carica papaya",
+    "family": "Caricaceae"
+  },
+  "condition": {
+    "common_name": "leaf curl virus",
+    "scientific_name": "Papaya leaf curl virus",
+    "alt_names": [
+      "Papaya leaf curl disease"
+    ],
+    "pathogen": {
+      "type": "virus",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "Geminiviridae",
+        "genus": "Begomovirus",
+        "species": "Papaya leaf curl virus"
+      }
+    }
+  },
+  "issue_type": "disease_viral",
+  "transmission": {
+    "vectors": [
+      "Whitefly (Bemisia tabaci)"
+    ],
+    "dispersal": [
+      "Vector movement between plants",
+      "Movement of infected planting material"
+    ],
+    "overwintering": [
+      "Infected perennial papaya plants",
+      "In alternate weed hosts"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High whitefly populations",
+      "Proximity to infected papaya or alternate host plants",
+      "Warm, dry conditions favoring vector activity"
+    ],
+    "temp_c_day": [
+      25,
+      35
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Slight downward curling or crinkling on a few young leaves; plant growth is not significantly affected.",
+    "moderate": "Significant leaf curling, crinkling, and vein thickening on multiple leaves, especially in the upper canopy; some stunting is visible.",
+    "severe": "Extreme leaf distortion, leathery texture, and severe stunting of the entire plant; reduced or no fruit production; prominent vein swelling on leaf undersides.",
+    "notes": "Severity is based on the extent of leaf deformation and overall plant stunting, as viral symptoms are systemic and affect new growth most dramatically."
+  },
+  "symptoms": {
+    "leaves": [
+      "Downward or inward curling of leaf margins, resembling an inverted cup.",
+      "Severe crinkling, puckering, and distortion of the leaf lamina.",
+      "Veins appear thickened, swollen, and are often darker green.",
+      "In some cases, vein clearing (yellowing of tissue around veins) occurs on young leaves.",
+      "Affected leaves become leathery, brittle, and reduced in size.",
+      "Petioles are often twisted and shortened."
+    ],
+    "stems": [
+      "Shortened internodes, leading to a crowded or 'bunchy top' appearance."
+    ],
+    "fruit": [
+      "Reduced fruit set or complete failure to produce fruit.",
+      "Fruits that do form may be small, deformed, and of poor quality."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Severe stunting and reduced plant vigor.",
+      "The top of the plant appears distorted and bushy due to shortened internodes and curled leaves."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "ringspot_virus",
+      "condition_id": "papaya.disease_viral.ringspot_virus",
+      "key_differences": [
+        "Ringpot virus causes strong mosaic/mottling and 'shoestring' (narrowed lamina) symptoms, which are less common in leaf curl.",
+        "Ringpot virus produces characteristic dark green ringspots on fruit, a symptom absent in leaf curl disease.",
+        "Leaf curl causes more pronounced downward curling and a leathery texture, while ringspot causes more varied distortions and color breaks."
+      ]
+    },
+    {
+      "condition_name": "spider_mites",
+      "condition_id": "papaya.pest_damage.spider_mites",
+      "key_differences": [
+        "Spider mite damage includes fine webbing on the leaf underside, which is absent in viral infections.",
+        "Mite damage causes stippling (tiny yellow/white spots), not the systemic vein thickening seen in leaf curl.",
+        "The mites themselves (tiny moving dots) and their eggs may be visible with a hand lens on the leaf underside."
+      ]
+    },
+    {
+      "condition_name": "mealybug",
+      "condition_id": "papaya.pest_damage.mealybug",
+      "key_differences": [
+        "Mealybug infestations show visible white, cottony masses of insects in leaf axils or on stems.",
+        "Sooty mold, a black fungus growing on mealybug honeydew, is often present with heavy infestations.",
+        "Leaf distortion from mealybugs is localized around the pest colony, whereas leaf curl symptoms are systemic on new growth."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified virus-free planting material.",
+      "Immediately remove and destroy infected plants (roguing) to reduce inoculum sources.",
+      "Control weed hosts in and around the orchard that harbor the virus and whiteflies.",
+      "Install yellow sticky traps to monitor whitefly populations."
+    ],
+    "biological": [
+      "Encourage natural predators of whiteflies, such as lacewings, ladybugs, and predatory mites."
+    ],
+    "chemical": [
+      "Apply systemic or contact insecticides to control the whitefly vector population.",
+      "Use reflective (e.g., silver) plastic mulch to repel whiteflies from young plants."
+    ],
+    "notes": "Management is prophylactic, focusing on controlling the whitefly vector and removing virus sources. There is no cure for an already infected plant."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/papaya/mealybug.json b/diseases_knowledge_base/papaya/mealybug.json
new file mode 100644
index 0000000000000000000000000000000000000000..ea88072e5ee1c8b4845aaaafec64d60a674feca0
--- /dev/null
+++ b/diseases_knowledge_base/papaya/mealybug.json
@@ -0,0 +1,135 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "papaya.pest_insect.mealybug",
+  "aliases": [
+    "Papaya mealybug infestation",
+    "Paracoccus marginatus infestation"
+  ],
+  "crop": {
+    "common_name": "papaya",
+    "scientific_name": "Carica papaya",
+    "family": "Caricaceae"
+  },
+  "condition": {
+    "common_name": "mealybug",
+    "scientific_name": "Paracoccus marginatus",
+    "alt_names": [
+      "papaya mealybug"
+    ],
+    "pathogen": {
+      "type": "insect",
+      "taxonomy": {
+        "kingdom": "Animalia",
+        "phylum": "Arthropoda",
+        "class": "Insecta",
+        "order": "Hemiptera",
+        "family": "Pseudococcidae",
+        "genus": "Paracoccus",
+        "species": "marginatus"
+      }
+    }
+  },
+  "issue_type": "pest_insect",
+  "transmission": {
+    "vectors": [
+      "ants (tend and protect mealybugs)",
+      "birds",
+      "farm workers (on clothing/equipment)"
+    ],
+    "dispersal": [
+      "wind (crawlers)",
+      "movement of infested plant material"
+    ],
+    "overwintering": [
+      "In tropical/subtropical climates, they persist year-round on host plants and do not truly overwinter."
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "warm, dry conditions",
+      "presence of ant colonies",
+      "dense plant canopy",
+      "lack of natural enemies"
+    ],
+    "temp_c_day": [
+      25,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      60,
+      80
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Small, isolated colonies of mealybugs (less than 5) found on a few leaves or stems. Little to no sooty mold.",
+    "moderate": "Multiple, larger colonies present on several leaves, stems, or young fruit. Some sooty mold is visible and leaves may show slight yellowing.",
+    "severe": "Heavy encrustations of mealybugs on leaves, stems, and fruit. Significant sooty mold, leaf yellowing, stunting, and plant dieback are evident.",
+    "notes": "Severity is assessed by the number and size of mealybug colonies and the extent of associated sooty mold and plant damage."
+  },
+  "symptoms": {
+    "leaves": [
+      "Yellowing, curling, or distortion of young leaves (chlorosis).",
+      "Leaves appear stunted or crinkled.",
+      "Presence of a sticky, clear substance (honeydew) on leaf surfaces.",
+      "Growth of a superficial black sooty mold on honeydew deposits."
+    ],
+    "stems": [
+      "White, cottony, waxy masses clustered in leaf axils and on young stems.",
+      "Stunting of terminal growth, leading to a 'bunchy top' appearance."
+    ],
+    "fruit": [
+      "White, waxy masses on the fruit surface, especially near the stem end.",
+      "Distortion or stunting of young, developing fruit.",
+      "Sooty mold growth on fruit, making it unmarketable."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Overall stunted growth.",
+      "Reduced plant vigor and fruit production."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible white, cottony, waxy masses covering the insects.",
+      "Small (2-3 mm), oval, pinkish-to-yellowish insects visible underneath the waxy coating.",
+      "Presence of ants actively tending the mealybug colonies."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "spider mites",
+      "condition_id": "papaya.pest_mite.spider_mites",
+      "key_differences": [
+        "Spider mites create fine, silken webbing on leaf undersides; mealybugs produce distinct, cottony, waxy masses.",
+        "Spider mite damage appears as tiny yellow or white stippling on leaves; mealybug damage causes more general yellowing and distortion.",
+        "Individual spider mites are very small, mobile dots; mealybug colonies are larger, mostly stationary, and white."
+      ]
+    },
+    {
+      "condition_name": "anthracnose",
+      "condition_id": "papaya.fungal.anthracnose",
+      "key_differences": [
+        "Sooty mold from mealybugs is a superficial black coating that can be wiped off; anthracnose lesions are sunken, circular, and part of the fruit tissue.",
+        "Anthracnose spots on fruit may develop pink or orange spore masses in the center, not white cottony material.",
+        "Mealybugs are insects, often accompanied by ants; anthracnose is a fungal disease with no associated insects."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Prune and destroy heavily infested plant parts.",
+      "Control ant populations with baits or barriers, as they protect mealybugs.",
+      "Avoid excessive nitrogen fertilization, which promotes succulent growth favored by mealybugs.",
+      "Use a strong jet of water to dislodge small, early infestations."
+    ],
+    "biological": [
+      "Introduce or conserve natural enemies like the lady beetle (Cryptolaemus montrouzieri) or parasitic wasps (e.g., Acerophagus papayae)."
+    ],
+    "chemical": [
+      "Apply horticultural oils or insecticidal soaps, ensuring thorough coverage of colonies.",
+      "For severe infestations, consider systemic insecticides, following local regulations and pre-harvest intervals."
+    ],
+    "notes": "An Integrated Pest Management (IPM) approach is most effective. Early detection and control of ants are crucial for managing mealybugs."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/papaya/mosaic_virus.json b/diseases_knowledge_base/papaya/mosaic_virus.json
new file mode 100644
index 0000000000000000000000000000000000000000..414762a239fde5800189c6aa07e837ad3803a727
--- /dev/null
+++ b/diseases_knowledge_base/papaya/mosaic_virus.json
@@ -0,0 +1,134 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "papaya.disease_viral.mosaic_virus",
+  "aliases": [
+    "PMV",
+    "PapMV"
+  ],
+  "crop": {
+    "common_name": "papaya",
+    "scientific_name": "Carica papaya",
+    "family": "Caricaceae"
+  },
+  "condition": {
+    "common_name": "mosaic virus",
+    "scientific_name": "Papaya mosaic virus",
+    "alt_names": [
+      "PMV"
+    ],
+    "pathogen": {
+      "type": "virus",
+      "taxonomy": {
+        "kingdom": "Orthornavirae",
+        "phylum": "Kitrinoviricota",
+        "class": "Alsuviricetes",
+        "order": "Martellivirales",
+        "family": "Potexviridae",
+        "genus": "Potexvirus",
+        "species": "Papaya mosaic virus"
+      }
+    }
+  },
+  "issue_type": "disease_viral",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "Mechanical transmission via contaminated tools (knives, pruning shears)",
+      "Contact between infected and healthy plants",
+      "Infected sap on hands or clothing"
+    ],
+    "overwintering": [
+      "Infected perennial papaya plants",
+      "Alternative host plants"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High plant density facilitating leaf-to-leaf contact",
+      "Pruning or harvesting activities without tool sanitation",
+      "Presence of infected papaya plants nearby"
+    ],
+    "temp_c_day": [],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Faint mosaic or mottling on a few young leaves; no significant stunting.",
+    "moderate": "Clear mosaic, mottling, and possible leaf distortion on multiple leaves; slight stunting of the plant may be visible.",
+    "severe": "Pronounced mosaic, severe leaf distortion, and blistering on most leaves; significant plant stunting and reduced fruit production.",
+    "notes": "Severity is assessed based on the extent and intensity of foliar symptoms and overall impact on plant growth, as quantifying percentage area for mosaic patterns is unreliable."
+  },
+  "symptoms": {
+    "leaves": [
+      "Light and dark green patches forming a mosaic or mottle pattern, especially on young leaves.",
+      "Vein-clearing or vein-banding on newly emerged leaves.",
+      "Leaves may appear slightly distorted but not severely malformed or fern-like.",
+      "No oily streaks are present on the petioles."
+    ],
+    "stems": [
+      "No distinct symptoms are typically observed on the main stem or petioles."
+    ],
+    "fruit": [
+      "Fruit may be smaller than normal.",
+      "No characteristic ringspots appear on the fruit.",
+      "Overall fruit yield is often reduced."
+    ],
+    "roots": [
+      "No external symptoms."
+    ],
+    "whole_plant": [
+      "Mild to moderate stunting of the plant.",
+      "General reduction in plant vigor."
+    ],
+    "signs_microscopic_or_visible": [
+      "None visible to the naked eye; requires laboratory testing (e.g., ELISA) for confirmation."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "ringspot virus",
+      "condition_id": "papaya.disease_viral.ringspot_virus",
+      "key_differences": [
+        "Ringspot virus causes distinct oily streaks on petioles and the upper trunk; mosaic virus does not.",
+        "Ringspot virus produces characteristic concentric rings on the fruit; mosaic virus does not.",
+        "Leaf symptoms in ringspot virus are often more severe, with shoestringing or fern-leaf appearance.",
+        "Ringspot virus is aphid-transmitted, while mosaic virus is mechanically transmitted."
+      ]
+    },
+    {
+      "condition_name": "leaf curl virus",
+      "condition_id": "papaya.disease_viral.leaf_curl_virus",
+      "key_differences": [
+        "Leaf curl causes severe upward/downward curling and crinkling of leaf margins into a cup shape; mosaic causes a flat color pattern.",
+        "Veins in leaf curl appear thickened and prominent; mosaic virus causes vein clearing or banding.",
+        "Leaf curl results in leathery, brittle leaves; mosaic leaves retain a more normal texture."
+      ]
+    },
+    {
+      "condition_name": "spider mites",
+      "condition_id": "papaya.pest.spider_mites",
+      "key_differences": [
+        "Mite damage appears as fine, yellowish stippling or bronzing, not a large-scale mosaic pattern of green shades.",
+        "Fine webbing is often visible on the underside of leaves with spider mites.",
+        "Mite damage often starts on older, lower leaves; mosaic symptoms are most prominent on young, developing leaves."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified virus-free planting material.",
+      "Sanitize tools (knives, pruners) with a disinfectant like 10% bleach solution between each plant.",
+      "Remove and destroy infected plants (roguing) immediately upon detection to reduce the inoculum source.",
+      "Minimize mechanical damage to plants during field operations."
+    ],
+    "biological": [
+      "No effective biological control agents are available for the virus itself."
+    ],
+    "chemical": [
+      "No chemical treatments (virucides) are effective against plant viruses."
+    ],
+    "notes": "Management focuses entirely on prevention (phytosanitation) as there is no cure for an infected plant."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/papaya/pest_damage.json b/diseases_knowledge_base/papaya/pest_damage.json
new file mode 100644
index 0000000000000000000000000000000000000000..60891d505edfb4e2a7cf673d0839be274530b143
--- /dev/null
+++ b/diseases_knowledge_base/papaya/pest_damage.json
@@ -0,0 +1,145 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "papaya.unknown.pest_damage",
+  "aliases": [
+    "insect damage",
+    "arthropod feeding injury",
+    "chewing damage",
+    "sucking damage"
+  ],
+  "crop": {
+    "common_name": "Papaya",
+    "scientific_name": "Carica papaya",
+    "family": "Caricaceae"
+  },
+  "condition": {
+    "common_name": "Pest Damage",
+    "scientific_name": null,
+    "alt_names": [
+      "Insect damage",
+      "Arthropod injury"
+    ],
+    "pathogen": {
+      "type": "insect",
+      "taxonomy": {
+        "kingdom": "Animalia",
+        "phylum": "Arthropoda",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "Active flight/crawling of pest",
+      "Wind",
+      "Contaminated equipment",
+      "Movement of infested plant material"
+    ],
+    "overwintering": [
+      "In crop debris",
+      "In soil",
+      "On alternate weed hosts",
+      "As eggs on plant surfaces"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Warm, humid conditions",
+      "Monoculture planting",
+      "Presence of alternate host plants",
+      "Lack of natural enemies",
+      "Drought stress can make plants more susceptible to sucking pests"
+    ],
+    "temp_c_day": [
+      25,
+      32
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      60,
+      85
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf or fruit surface area shows feeding damage (e.g., holes, stippling, discoloration).",
+    "moderate": "11-40% of leaf or fruit surface area is affected; some leaf curling or distortion may be present.",
+    "severe": ">40% of leaf or fruit surface area is damaged; significant defoliation, fruit drop, or plant stunting is visible.",
+    "notes": "Severity is assessed based on the total visible area affected by feeding, stippling, webbing, or sooty mold associated with pests. For discrete damage like holes, estimate the equivalent area lost."
+  },
+  "symptoms": {
+    "leaves": [
+      "Irregularly shaped holes or chewed margins (skeletonization)",
+      "Fine, pale stippling or pinprick-like spots on the upper surface",
+      "Yellowing (chlorosis) or bronzing of leaf tissue",
+      "Distortion, curling, or puckering of new growth",
+      "Presence of fine, silk-like webbing, especially on the underside",
+      "Sticky 'honeydew' residue on leaf surfaces, which may be shiny"
+    ],
+    "stems": [
+      "Boring holes in petioles or young stems, sometimes with frass (sawdust-like excrement)",
+      "Galls or swollen areas",
+      "Presence of white, waxy, or cottony masses in leaf axils"
+    ],
+    "fruit": [
+      "Superficial scarring, scabs, or blemishes on the skin",
+      "Sunken, discolored spots, sometimes with oozing latex",
+      "Holes or tunnels leading into the fruit pulp"
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Stunted growth or lack of vigor",
+      "Presence of sooty mold, a black fungus growing on honeydew"
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible insects, larvae, or eggs on plant surfaces",
+      "White, waxy, or cottony masses indicating mealybugs or scale",
+      "Tiny moving specks (mites) on the underside of leaves"
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Spider Mites",
+      "condition_id": "papaya.pest.spider_mites",
+      "key_differences": [
+        "General pest damage can include large, chewed holes, which are absent with spider mites.",
+        "Spider mite damage is specifically fine, uniform stippling and bronzing, often accompanied by visible webbing.",
+        "The causal agents for spider mite damage are tiny, moving arachnids, unlike larger insects (e.g., caterpillars) that cause chewing damage."
+      ]
+    },
+    {
+      "condition_name": "Mealybug",
+      "condition_id": "papaya.pest.mealybug",
+      "key_differences": [
+        "Mealybug infestations are defined by the presence of distinct white, cottony, or waxy masses, a sign not present in general chewing damage.",
+        "Mealybug damage is from sap-sucking, causing yellowing and stunting, not holes or skeletonization.",
+        "Heavy sooty mold on honeydew is a strong indicator of mealybugs (or other sucking pests), but not chewing pests."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Remove and destroy infested plant parts and crop debris.",
+      "Maintain good weed control to eliminate alternate hosts.",
+      "Use reflective mulches to deter flying insects like aphids and thrips.",
+      "Ensure proper plant nutrition and irrigation to improve plant vigor and tolerance."
+    ],
+    "biological": [
+      "Encourage natural predators such as ladybugs, lacewings, and parasitic wasps by planting diverse flora.",
+      "Introduce commercially available predatory mites or insects where appropriate."
+    ],
+    "chemical": [
+      "Apply horticultural oils or insecticidal soaps for soft-bodied pests, ensuring thorough coverage.",
+      "Use targeted insecticides (e.g., Bt for caterpillars) based on positive pest identification.",
+      "Avoid broad-spectrum pesticides that harm beneficial insects and pollinators."
+    ],
+    "notes": "The specific management strategy depends heavily on identifying the exact pest causing the damage. Integrated Pest Management (IPM) is highly recommended for sustainable control."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/papaya/ringspot_virus.json b/diseases_knowledge_base/papaya/ringspot_virus.json
new file mode 100644
index 0000000000000000000000000000000000000000..5ea36e8d7b1e23eda2e722e57fffee47e5219769
--- /dev/null
+++ b/diseases_knowledge_base/papaya/ringspot_virus.json
@@ -0,0 +1,141 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "papaya.disease_viral.ringspot_virus",
+  "aliases": [
+    "PRSV",
+    "Papaya ringspot"
+  ],
+  "crop": {
+    "common_name": "papaya",
+    "scientific_name": "Carica papaya",
+    "family": "Caricaceae"
+  },
+  "condition": {
+    "common_name": "ringspot virus",
+    "scientific_name": "Papaya ringspot virus",
+    "alt_names": [
+      "PRSV"
+    ],
+    "pathogen": {
+      "type": "virus",
+      "taxonomy": {
+        "kingdom": "Orthornavirae",
+        "phylum": "Pisuviricota",
+        "class": "Stelpaviricetes",
+        "order": "Patatavirales",
+        "family": "Potyviridae",
+        "genus": "Potyvirus",
+        "species": "Papaya ringspot virus"
+      }
+    }
+  },
+  "issue_type": "disease_viral",
+  "transmission": {
+    "vectors": [
+      "aphids (e.g., Myzus persicae, Aphis gossypii)"
+    ],
+    "dispersal": [
+      "Insect vectors (aphids) in a non-persistent manner",
+      "Mechanical transmission via contaminated tools or human activity"
+    ],
+    "overwintering": [
+      "Infected perennial papaya plants",
+      "Infected alternative weed and crop hosts (e.g., cucurbits)"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High aphid populations",
+      "Proximity to infected papaya orchards or cucurbit fields",
+      "Warm, dry conditions that favor aphid flight and dispersal"
+    ],
+    "temp_c_day": [
+      20,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Faint yellow mosaic or mottling on a few young leaves. No significant stunting or fruit symptoms.",
+    "moderate": "Distinct mosaic, leaf yellowing, and some leaf distortion (fern-leaf). Plant shows some stunting. Fruit may show faint rings.",
+    "severe": "Severe mosaic, prominent 'fern-leaf' symptoms or shoestringing of leaves. Significant plant stunting, and distinctive, dark ringspots on fruit and oily streaks on stems.",
+    "notes": "Severity is based on the systemic progression of symptoms. It is most accurately judged by observing the youngest leaves for mosaic and mature fruit for ringspots. A value of 0 for leaf wetness indicates it is not a primary driver for this viral disease."
+  },
+  "symptoms": {
+    "leaves": [
+      "Yellow mosaic or mottling patterns, especially on young, expanding leaves.",
+      "Initial symptoms include vein-clearing on young leaves.",
+      "Leaf lamina is distorted, creating a 'fern-leaf' appearance.",
+      "Overall leaf size is significantly reduced.",
+      "In severe cases, leaf lobes are reduced to narrow, strap-like structures ('shoestringing')."
+    ],
+    "stems": [
+      "Dark green, oily or water-soaked streaks appear on petioles and the upper part of the trunk.",
+      "Internode length is shortened, contributing to a stunted appearance."
+    ],
+    "fruit": [
+      "Distinctive concentric rings or C-shaped markings develop on the fruit surface.",
+      "Ringspots are typically dark green on green fruit and turn yellow or brown as the fruit ripens.",
+      "Fruit size and quality are reduced, and flavor can be insipid.",
+      "Fruit surface may be bumpy or deformed."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Noticeable stunting, especially if infection occurs at a young stage.",
+      "The plant canopy becomes sparse and reduced in size.",
+      "Yield is severely reduced or completely eliminated."
+    ],
+    "signs_microscopic_or_visible": [
+      "No visible signs of the pathogen itself (e.g., fungal growth, spores, bacterial ooze)."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "mosaic virus",
+      "condition_id": "papaya.disease_viral.mosaic_virus",
+      "key_differences": [
+        "Ringspot virus (PRSV) causes distinctive rings on the fruit, which are absent in Papaya Mosaic Virus (PapMV) infections.",
+        "PRSV typically causes more severe leaf distortion ('fern-leaf' or 'shoestringing') compared to the milder mosaic of PapMV.",
+        "The oily, water-soaked streaks on stems and petioles are characteristic of PRSV, not PapMV."
+      ]
+    },
+    {
+      "condition_name": "leaf curl virus",
+      "condition_id": "papaya.disease_viral.leaf_curl_virus",
+      "key_differences": [
+        "Leaf curl causes severe upward or downward curling of the entire leaf blade, creating a cup shape, whereas ringspot causes a mosaic pattern and lamina reduction.",
+        "In leaf curl, veins become thickened and often remain green, while ringspot causes vein-clearing or mosaic patterns across the veins.",
+        "Ringspot virus causes rings on the fruit, a symptom not associated with leaf curl virus."
+      ]
+    },
+    {
+      "condition_name": "spider_mites",
+      "condition_id": "papaya.pest.spider_mites",
+      "key_differences": [
+        "Spider mite damage appears as fine, yellow or whitish stippling on the leaf surface, not a broad mosaic or mottled pattern.",
+        "Fine webbing is often present on the underside of leaves infested with spider mites, which is absent in viral infections.",
+        "The cause of spider mite damage (tiny, moving mites) may be visible with magnification on the leaf underside.",
+        "PRSV symptoms are systemic and most prominent on new growth, while spider mite damage can be localized on older leaves initially."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified virus-free seedlings for planting.",
+      "Immediately remove and destroy (rogue) any infected plants to reduce the source of inoculum.",
+      "Maintain a weed-free orchard, as many weeds can host the virus and its aphid vectors.",
+      "Planting of resistant or genetically modified (GM) tolerant cultivars where available and permitted."
+    ],
+    "biological": [
+      "Conserve and encourage natural predators of aphids, such as lady beetles, lacewings, and hoverflies."
+    ],
+    "chemical": [
+      "Application of insecticides to manage aphid vector populations, though this may have limited success due to the rapid transmission time.",
+      "Spraying horticultural or mineral oils can interfere with aphid feeding and reduce virus transmission."
+    ],
+    "notes": "Once a plant is infected with PRSV, it cannot be cured. Management focuses entirely on preventing infection by controlling aphid vectors and removing infected plants."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/papaya/spider_mites.json b/diseases_knowledge_base/papaya/spider_mites.json
new file mode 100644
index 0000000000000000000000000000000000000000..bbde388d2961c1da84e2618080a17fefbe88d531
--- /dev/null
+++ b/diseases_knowledge_base/papaya/spider_mites.json
@@ -0,0 +1,129 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "papaya.pest_mite.spider_mites",
+  "aliases": [
+    "Red spider mite on papaya",
+    "Two-spotted spider mite on papaya"
+  ],
+  "crop": {
+    "common_name": "Papaya",
+    "scientific_name": "Carica papaya",
+    "family": "Caricaceae"
+  },
+  "condition": {
+    "common_name": "Spider Mites",
+    "scientific_name": "Tetranychus spp.",
+    "alt_names": [
+      "Red spider mite",
+      "Two-spotted spider mite"
+    ],
+    "pathogen": {
+      "type": "Arachnid",
+      "taxonomy": {
+        "kingdom": "Animalia",
+        "phylum": "Arthropoda",
+        "class": "Arachnida",
+        "order": "Trombidiformes",
+        "family": "Tetranychidae",
+        "genus": "Tetranychus",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "pest_mite",
+  "transmission": {
+    "vectors": [
+      "Wind",
+      "Humans (on clothing/equipment)",
+      "Contaminated plant material"
+    ],
+    "dispersal": [
+      "Mites crawl between adjacent leaves and plants.",
+      "Wind currents carry mites over longer distances.",
+      "Movement of infested nursery stock or equipment."
+    ],
+    "overwintering": [
+      "Adult female mites overwinter in plant debris, bark crevices, or on weed hosts in and around cultivation areas."
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Hot, dry, and dusty conditions",
+      "Low relative humidity",
+      "Water-stressed plants",
+      "Overuse of broad-spectrum insecticides that kill natural predators"
+    ],
+    "temp_c_day": [
+      25,
+      37
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      20,
+      50
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area affected. Light stippling is visible on upper surfaces. Webbing is absent or very sparse and difficult to see.",
+    "moderate": "11-40% of leaf area affected. Stippling is dense, causing leaves to appear pale or yellowish. Fine webbing is clearly visible on leaf undersides and between petioles.",
+    "severe": ">40% of leaf area affected. Leaves are bronzed, brown, or desiccated. Dense webbing covers leaves, stems, and may enclose entire leaf clusters. Premature leaf drop is common.",
+    "notes": "Assessment is based on the total foliar surface area showing symptoms (stippling, discoloration, webbing). This can be estimated on a representative sample of leaves from the plant."
+  },
+  "symptoms": {
+    "leaves": [
+      "Fine, pale yellow or white stippling (tiny dots) on the upper leaf surface from feeding.",
+      "Leaf undersides appear dusty or sandy due to the presence of mites, eggs, and shed skins.",
+      "As damage progresses, leaves turn yellow, bronze, grey, or brown.",
+      "Fine, silk-like webbing is visible, typically starting on the leaf underside and near the petiole.",
+      "Leaf margins may curl downwards or upwards.",
+      "In severe cases, leaves become brittle, dry up, and drop prematurely."
+    ],
+    "stems": [
+      "Webbing can extend from leaves to cover petioles and young stems in heavy infestations."
+    ],
+    "fruit": [
+      "Mite feeding on the fruit surface can cause scarring, russeting, or a bronze discoloration.",
+      "Webbing may cover parts of the fruit in severe outbreaks."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Reduced plant vigor and stunted growth.",
+      "Significant defoliation under high mite pressure."
+    ],
+    "signs_microscopic_or_visible": [
+      "Tiny, moving specks (mites), often reddish or yellowish, visible on leaf undersides (a hand lens helps).",
+      "Minute, spherical, translucent eggs, often found along the midrib or within webbing.",
+      "Fine silk webbing is a definitive sign of spider mites."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Mealybug",
+      "condition_id": "papaya.pest_insect.mealybug",
+      "key_differences": [
+        "Mealybugs are larger, visible insects covered in a white, waxy, cotton-like material, while spider mites are tiny arachnids appearing as moving dots.",
+        "Spider mites produce fine silk webbing, whereas mealybugs create clumpy, cottony masses and do not produce webbing.",
+        "Mealybugs excrete sticky honeydew, which can lead to sooty mold growth, a sign not directly associated with spider mites."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Spray plants with a strong jet of water to physically dislodge mites and break up webbing.",
+      "Maintain adequate irrigation to prevent water stress, which makes plants more susceptible.",
+      "Control dust on and around plants, as dusty conditions favor mite outbreaks.",
+      "Prune and destroy heavily infested leaves or plant parts to reduce mite populations."
+    ],
+    "biological": [
+      "Conserve and encourage natural predators such as predatory mites (e.g., Phytoseiulus persimilis), lady beetles, lacewing larvae, and minute pirate bugs.",
+      "Avoid using broad-spectrum pesticides that harm beneficial insects."
+    ],
+    "chemical": [
+      "Apply horticultural oils or insecticidal soaps, ensuring thorough coverage of all plant surfaces, especially leaf undersides.",
+      "Use selective miticides (acaricides) for severe infestations, rotating chemical groups to manage resistance."
+    ],
+    "notes": "Regularly monitor the undersides of lower, older leaves for early signs of infestation, particularly during warm, dry periods."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/peach/bacterial_spot.json b/diseases_knowledge_base/peach/bacterial_spot.json
new file mode 100644
index 0000000000000000000000000000000000000000..c87d9d385e46140d9b700d8df2e01bf30e29252e
--- /dev/null
+++ b/diseases_knowledge_base/peach/bacterial_spot.json
@@ -0,0 +1,123 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "peach.disease_bacterial.bacterial_spot",
+  "aliases": [
+    "bacterial shot hole",
+    "bacteriosis"
+  ],
+  "crop": {
+    "common_name": "Peach",
+    "scientific_name": "Prunus persica",
+    "family": "Rosaceae"
+  },
+  "condition": {
+    "common_name": "Bacterial Spot",
+    "scientific_name": "Xanthomonas arboricola pv. pruni",
+    "alt_names": [
+      "Bacterial shot hole"
+    ],
+    "pathogen": {
+      "type": "bacterium",
+      "taxonomy": {
+        "kingdom": "Bacteria",
+        "phylum": "Pseudomonadota",
+        "class": "Gammaproteobacteria",
+        "order": "Xanthomonadales",
+        "family": "Xanthomonadaceae",
+        "genus": "Xanthomonas",
+        "species": "X. arboricola"
+      }
+    }
+  },
+  "issue_type": "disease_bacterial",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "Wind-driven rain",
+      "Splashing water from irrigation",
+      "Contaminated pruning tools"
+    ],
+    "overwintering": [
+      "In infected twigs as cankers",
+      "Within dormant buds",
+      "On fallen leaves and other plant debris"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High humidity",
+      "Frequent or prolonged rainfall",
+      "Warm temperatures",
+      "Windy conditions that create small wounds on leaves"
+    ],
+    "temp_c_day": [
+      20,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      80,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 6
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "< 5% of leaf area affected with spots. Minimal to no 'shot hole' effect or yellowing.",
+    "moderate": "5-25% of leaf area affected, with noticeable 'shot hole' symptoms and some leaf yellowing (chlorosis).",
+    "severe": "> 25% of leaf area affected, extensive 'shot hole' appearance, significant yellowing, and premature defoliation.",
+    "notes": "Severity on fruit can be assessed by lesion count or percent surface area affected. Defoliation is a key indicator of severe infection pressure."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, angular, water-soaked spots appear, primarily on the underside of leaves.",
+      "Lesions become purplish-black or dark brown, often with a slightly lighter center.",
+      "Spots are frequently delimited by leaf veins, resulting in an angular shape.",
+      "The necrotic center of a lesion dries and falls out, creating a characteristic 'shot hole' appearance.",
+      "Infected leaves turn yellow, starting from the tip and progressing downward, before dropping prematurely."
+    ],
+    "stems": [
+      "Dark, sunken, circular to elliptical cankers form on first-year twigs (spring cankers).",
+      "Black tip dieback can occur on severely infected new shoots.",
+      "Gummy sap (gummosis) may exude from twig cankers during wet periods."
+    ],
+    "fruit": [
+      "Small, circular, sunken, olive-green to dark brown spots develop on the fruit surface.",
+      "Fruit lesions are often concentrated on the windward side of the fruit.",
+      "Lesions may crack or pit as the fruit expands.",
+      "A gummy substance may ooze from fruit lesions."
+    ],
+    "roots": [],
+    "whole_plant": [],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Healthy",
+      "condition_id": "peach.healthy.healthy",
+      "key_differences": [
+        "Healthy leaves are uniformly green and fully intact, lacking any spots, holes, or yellowing.",
+        "Healthy fruit has smooth, unblemished skin without any sunken pits, cracks, or lesions.",
+        "Healthy stems and twigs have smooth bark without dark, sunken cankers or gummosis."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant resistant or tolerant peach varieties.",
+      "Prune trees to promote good air circulation and faster drying of foliage.",
+      "Remove and destroy infected twigs and cankers during dormant pruning.",
+      "Avoid overhead irrigation to minimize leaf wetness duration.",
+      "Maintain tree vigor with proper fertilization and watering, as stressed trees are more susceptible."
+    ],
+    "biological": [
+      "Some commercial products containing *Bacillus subtilis* or other beneficial microbes may offer limited suppression when applied preventatively."
+    ],
+    "chemical": [
+      "Apply fixed copper sprays during dormancy to reduce overwintering inoculum.",
+      "Use bactericides containing oxytetracycline or other approved compounds during the growing season, starting from shuck split.",
+      "Rotate chemical classes to prevent the development of bacterial resistance."
+    ],
+    "notes": "Chemical spray timing is critical and should be guided by weather forecasts, focusing on protecting foliage and fruit during warm, wet periods."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/peach/healthy.json b/diseases_knowledge_base/peach/healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..126ffe07ab94ae84474afea0ea2910266d56951a
--- /dev/null
+++ b/diseases_knowledge_base/peach/healthy.json
@@ -0,0 +1,118 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "peach.healthy.healthy",
+  "aliases": [
+    "Normal peach",
+    "Asymptomatic peach",
+    "Unaffected peach"
+  ],
+  "crop": {
+    "common_name": "Peach",
+    "scientific_name": "Prunus persica",
+    "family": "Rosaceae"
+  },
+  "condition": {
+    "common_name": "Healthy",
+    "scientific_name": null,
+    "alt_names": [
+      "Normal",
+      "Asymptomatic"
+    ],
+    "pathogen": {
+      "type": "none",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "healthy",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Optimal sunlight exposure (full sun)",
+      "Good air circulation through the canopy",
+      "Well-drained soil to prevent root stress",
+      "Balanced nutrition and appropriate soil pH",
+      "Sufficient and regular watering without waterlogging"
+    ],
+    "temp_c_day": [
+      24,
+      29
+    ],
+    "temp_c_night": [
+      15,
+      21
+    ],
+    "relative_humidity_pct": [
+      50,
+      70
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Not applicable.",
+    "moderate": "Not applicable.",
+    "severe": "Not applicable.",
+    "notes": "Severity is not applicable for a healthy condition. The plant is considered healthy if it exhibits no visible signs of disease, pest damage, or significant abiotic stress."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uniformly green color, consistent with the cultivar.",
+      "No spots, lesions, discoloration, or necrosis.",
+      "Leaves are fully expanded, turgid, and have a smooth surface.",
+      "No evidence of puckering, curling, or distortion.",
+      "Petioles are firm and securely attached to the stem."
+    ],
+    "stems": [
+      "Current season's growth is vigorous with smooth, appropriately colored bark.",
+      "No cankers, gummosis (oozing sap), cracks, or swelling.",
+      "Buds appear well-formed and viable."
+    ],
+    "fruit": [
+      "Skin is smooth (may have natural fuzz) and unblemished.",
+      "Color is uniform and appropriate for the cultivar and stage of maturity.",
+      "No spots, cracks, sunken areas, or signs of rot."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Exhibits a vigorous, well-structured growth habit.",
+      "A dense, full canopy of leaves is present during the growing season."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Bacterial Spot",
+      "condition_id": "peach.bacterial.bacterial_spot",
+      "key_differences": [
+        "Healthy leaves are uniformly green, whereas bacterial spot causes small, angular, water-soaked lesions that turn dark purple or black.",
+        "With bacterial spot, the center of leaf lesions often falls out, creating a 'shot-hole' appearance, which is absent in healthy leaves.",
+        "Healthy fruit skin is smooth and unblemished, while bacterial spot causes small, circular, pitted lesions on the fruit surface, sometimes with cracking.",
+        "Bacterial spot can cause twig dieback and cankers on young shoots, which are not present on healthy stems."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Planting in sites with full sun, good air circulation, and well-drained soil.",
+      "Implementing a balanced fertilizer program based on soil testing.",
+      "Pruning annually during dormancy to maintain an open canopy structure.",
+      "Providing consistent irrigation, especially during dry periods, to avoid plant stress.",
+      "Practicing orchard sanitation, such as removing fallen leaves and mummified fruit."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "Management for a healthy plant focuses on proactive cultural practices that promote vigor and minimize environmental stress, making the plant less susceptible to future infections."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/peas/anthracnose.json b/diseases_knowledge_base/peas/anthracnose.json
new file mode 100644
index 0000000000000000000000000000000000000000..e8c82f7d45e936984db431f1f09735becd7543d9
--- /dev/null
+++ b/diseases_knowledge_base/peas/anthracnose.json
@@ -0,0 +1,138 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "peas.disease_fungal.anthracnose",
+  "aliases": [
+    "Pea anthracnose"
+  ],
+  "crop": {
+    "common_name": "Pea",
+    "scientific_name": "Pisum sativum",
+    "family": "Fabaceae"
+  },
+  "condition": {
+    "common_name": "Anthracnose",
+    "scientific_name": "Colletotrichum pisi",
+    "alt_names": [
+      "Leaf and pod spot"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Sordariomycetes",
+        "order": "Glomerellales",
+        "family": "Glomerellaceae",
+        "genus": "Colletotrichum",
+        "species": "pisi"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "Rain splash",
+      "Wind-driven rain",
+      "Contaminated equipment",
+      "Infected seed"
+    ],
+    "overwintering": [
+      "Infected crop debris",
+      "Infected seed"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High humidity",
+      "Prolonged leaf wetness",
+      "Dense plant canopy",
+      "Poor air circulation",
+      "Moderate to warm temperatures"
+    ],
+    "temp_c_day": [
+      20,
+      27
+    ],
+    "temp_c_night": [
+      15,
+      22
+    ],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 12
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf/pod surface area affected; few, scattered lesions.",
+    "moderate": "11-40% of leaf/pod surface area affected; multiple lesions, some coalescing; minor stem girdling.",
+    "severe": ">40% of leaf/pod surface area affected; extensive lesion coalescence leading to blighting, significant stem girdling, and pod decay.",
+    "notes": "Severity is assessed on the most affected plant parts (leaves, stems, pods). Assess the average across several plants in an area."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, circular, water-soaked spots that enlarge over time.",
+      "Lesions become tan to dark brown, often with a distinct, dark border.",
+      "Centers of older lesions may become gray and fall out, creating a 'shot-hole' effect.",
+      "Lesions can merge, causing large blighted areas and premature leaf drop."
+    ],
+    "stems": [
+      "Elongated, sunken lesions that are initially dark green and turn black.",
+      "Stem lesions can girdle the plant, causing wilting and death of parts above the infection.",
+      "Tiny black fungal structures (acervuli) may become visible in the center of older stem lesions."
+    ],
+    "fruit": [
+      "Circular, sunken lesions on pods, often with a water-soaked appearance.",
+      "Pod lesions enlarge, turn dark brown to black, and may have lighter-colored centers.",
+      "In humid conditions, pinkish to orange-colored spore masses may ooze from the center of pod lesions."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Stunted growth and reduced vigor in heavily infected plants.",
+      "General wilting or dieback if main stems are girdled."
+    ],
+    "signs_microscopic_or_visible": [
+      "Presence of acervuli (small, black, cushion-like fungal fruiting bodies) in the center of mature lesions.",
+      "Gelatinous, salmon-pink to orange spore masses (conidia) produced from acervuli in moist weather."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Ascochyta blight",
+      "condition_id": "peas.disease_fungal.ascochyta_blight",
+      "key_differences": [
+        "Ascochyta lesions are purplish-black and often have distinct concentric rings, creating a 'target spot' appearance.",
+        "Ascochyta lesions contain tiny black specks (pycnidia) arranged in rings, unlike the acervuli of anthracnose which can produce pink spore masses.",
+        "Ascochyta blight complex often includes a 'foot rot' phase with blackening at the stem base, which is not typical for anthracnose."
+      ]
+    },
+    {
+      "condition_name": "Botrytis blight",
+      "condition_id": "peas.disease_fungal.botrytis_blight",
+      "key_differences": [
+        "Botrytis blight is characterized by a fuzzy, gray-to-brown moldy growth on lesions, especially in high humidity.",
+        "Botrytis lesions are often less defined, appearing as rapidly expanding, soft, water-soaked patches rather than the discrete, sunken spots of anthracnose.",
+        "Botrytis frequently infects blossoms first, leading to pod rot that initiates from the flower end."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified disease-free seed.",
+      "Practice a crop rotation of at least 2-3 years with non-legume crops.",
+      "Promote air circulation through appropriate plant spacing and weed control.",
+      "Remove and destroy infected crop residue after harvest to reduce inoculum.",
+      "Avoid overhead irrigation to minimize periods of leaf wetness."
+    ],
+    "biological": [
+      "Some commercial biofungicides containing *Bacillus subtilis* or *Trichoderma* species may provide suppression when applied preventatively."
+    ],
+    "chemical": [
+      "Apply registered foliar fungicides (e.g., strobilurins, triazoles) preventatively, especially when weather conditions are favorable for disease.",
+      "Seed treatment with appropriate fungicides can reduce transmission from infected seed."
+    ],
+    "notes": "Consult local agricultural extension services for recommendations on fungicides currently registered for use on peas in your region."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/peas/ascochyta_blight.json b/diseases_knowledge_base/peas/ascochyta_blight.json
new file mode 100644
index 0000000000000000000000000000000000000000..010d5770dd690c90785493cba3d3c008cc7321bd
--- /dev/null
+++ b/diseases_knowledge_base/peas/ascochyta_blight.json
@@ -0,0 +1,149 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "peas.disease_fungal.ascochyta_blight",
+  "aliases": [
+    "ascochyta blight complex",
+    "mycosphaerella blight",
+    "black spot",
+    "ascochyta foot rot"
+  ],
+  "crop": {
+    "common_name": "peas",
+    "scientific_name": "Pisum sativum",
+    "family": "Fabaceae"
+  },
+  "condition": {
+    "common_name": "ascochyta blight",
+    "scientific_name": "Ascochyta pisi, Mycosphaerella pinodes, Phoma medicaginis var. pinodella",
+    "alt_names": [
+      "Mycosphaerella blight",
+      "Ascochyta foot rot"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Pleosporales",
+        "family": "Didymellaceae",
+        "genus": "Ascochyta",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "rain_splash",
+      "wind_driven_rain",
+      "infected_seed",
+      "contaminated_equipment"
+    ],
+    "overwintering": [
+      "infected_crop_debris",
+      "infected_seed",
+      "volunteer_pea_plants"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "cool_to_moderate_temperatures",
+      "high_humidity",
+      "prolonged_leaf_wetness",
+      "dense_canopy",
+      "planting_infected_seed"
+    ],
+    "temp_c_day": [
+      15,
+      25
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 4
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf, stem, or pod area affected. Lesions are few and scattered.",
+    "moderate": "11-40% of area affected. Lesions are numerous, some may be coalescing. Minor stem girdling or pod distortion is visible.",
+    "severe": ">40% of area affected. Widespread lesion coalescence, significant stem girdling ('foot rot'), severe defoliation, and extensive pod spotting leading to seed infection.",
+    "notes": "Severity is assessed as the percentage of total photosynthetic or marketable (pod) area covered by lesions. The presence of foot rot (lesions at the stem base) is a key indicator of severe disease, as it can kill the plant."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, circular, tan to purplish-brown spots, often 1-10 mm in diameter.",
+      "Lesions frequently have a distinct, darker brown or purplish border.",
+      "Tiny, black specks (pycnidia) are visible within the center of older, tan-colored lesions.",
+      "Lesions may merge (coalesce), causing large blighted areas and leaf death."
+    ],
+    "stems": [
+      "Elongated, sunken, purplish-black lesions, especially near the soil line, causing 'foot rot'.",
+      "Stem lesions can girdle the plant, causing it to wilt, lodge (fall over), or die.",
+      "Pycnidia may be present in stem lesions."
+    ],
+    "fruit": [
+      "Circular, sunken, tan-to-dark-brown lesions appear on pods.",
+      "Pod lesions often have a well-defined dark margin.",
+      "Severe pod infection causes the fungus to grow through to the seeds, resulting in discoloration and shriveling."
+    ],
+    "roots": [
+      "Dark brown to black discoloration on the upper taproot, extending from the stem base foot rot."
+    ],
+    "whole_plant": [
+      "Stunted growth and premature yellowing (senescence), particularly when foot rot is severe."
+    ],
+    "signs_microscopic_or_visible": [
+      "Presence of small, black, flask-shaped fruiting bodies (pycnidia) embedded in the center of necrotic lesions."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "downy mildew",
+      "condition_id": "peas.disease_oomycete.downy_mildew",
+      "key_differences": [
+        "Downy mildew produces fluffy, grey-to-purplish mold on the underside of leaves; ascochyta blight does not.",
+        "Downy mildew lesions are often angular and limited by veins, appearing yellowish on the upper leaf surface, while ascochyta lesions are circular with distinct borders.",
+        "Ascochyta blight features tiny black pycnidia in lesion centers, which are absent in downy mildew."
+      ]
+    },
+    {
+      "condition_name": "anthracnose",
+      "condition_id": "peas.disease_fungal.anthracnose",
+      "key_differences": [
+        "Anthracnose lesions are typically darker (dark brown to black) and more sunken than the tan-centered ascochyta lesions.",
+        "In wet conditions, anthracnose lesions may show acervuli that ooze pinkish spore masses, whereas ascochyta lesions have embedded black pycnidia.",
+        "Ascochyta blight is more commonly associated with a distinct 'foot rot' at the stem base."
+      ]
+    },
+    {
+      "condition_name": "botrytis blight",
+      "condition_id": "peas.disease_fungal.botrytis_blight",
+      "key_differences": [
+        "Botrytis blight is characterized by a fuzzy, gray-to-brown mold growth (mycelium) on affected tissues, which is absent in ascochyta blight.",
+        "Botrytis lesions are often watery and soft, causing a rapid rot, while ascochyta lesions are more dry, defined, and 'papery' in the center.",
+        "Ascochyta has embedded black pycnidia; botrytis has superficial fuzzy mold and may form hard, black sclerotia in advanced stages."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified, disease-free seed.",
+      "Implement crop rotation with non-host crops (e.g., cereals) for at least 3 years.",
+      "Bury or remove infected crop debris after harvest to reduce inoculum.",
+      "Select resistant or tolerant pea varieties when available.",
+      "Promote air circulation through appropriate plant spacing and weed control."
+    ],
+    "biological": [
+      "Some microbial seed treatments have shown suppressive activity against seed-borne pathogens."
+    ],
+    "chemical": [
+      "Treat seed with a registered fungicide to control seed-borne inoculum.",
+      "Apply registered foliar fungicides at the first sign of disease or preventatively if conditions are favorable, especially during flowering."
+    ],
+    "notes": "An integrated pest management (IPM) approach is crucial. Scouting for early symptoms, especially during cool and wet weather, allows for timely intervention."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/peas/botrytis_blight.json b/diseases_knowledge_base/peas/botrytis_blight.json
new file mode 100644
index 0000000000000000000000000000000000000000..a7a5020d21f556bf4e57d2856cea4bd689708ca0
--- /dev/null
+++ b/diseases_knowledge_base/peas/botrytis_blight.json
@@ -0,0 +1,143 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "peas.disease_fungal.botrytis_blight",
+  "aliases": [
+    "Gray mold of pea",
+    "Grey mould of pea"
+  ],
+  "crop": {
+    "common_name": "Pea",
+    "scientific_name": "Pisum sativum",
+    "family": "Fabaceae"
+  },
+  "condition": {
+    "common_name": "Botrytis blight",
+    "scientific_name": "Botrytis cinerea",
+    "alt_names": [
+      "Gray mold",
+      "Grey mould"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Leotiomycetes",
+        "order": "Helotiales",
+        "family": "Sclerotiniaceae",
+        "genus": "Botrytis",
+        "species": "cinerea"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "Wind-borne conidia",
+      "Water splash",
+      "Contaminated tools",
+      "Infected seed"
+    ],
+    "overwintering": [
+      "Sclerotia in soil",
+      "Mycelia on infected plant debris",
+      "Infected seed"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High relative humidity (>90%)",
+      "Prolonged leaf wetness",
+      "Cool to moderate temperatures",
+      "Poor air circulation within the plant canopy",
+      "Dense plantings",
+      "Presence of senescing tissues, especially flowers"
+    ],
+    "temp_c_day": [
+      15,
+      23
+    ],
+    "temp_c_night": [
+      10,
+      18
+    ],
+    "relative_humidity_pct": [
+      90,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 8
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "A few isolated, small lesions on leaves or stems; no significant pod infection; less than 5% of plant canopy affected.",
+    "moderate": "Multiple lesions, some coalescing on leaves and stems; initial water-soaking or early mold growth on some pods; 5-25% of plant canopy affected.",
+    "severe": "Extensive blighting of leaves, stems, and pods; dense, fuzzy gray mold is widespread; significant plant collapse or extensive pod rot; >25% of plant canopy affected.",
+    "notes": "Severity is assessed based on the overall percentage of the plant showing symptoms, with a focus on the presence and density of the characteristic gray sporulation, especially on pods and stems."
+  },
+  "symptoms": {
+    "leaves": [
+      "Water-soaked, grayish-green spots, often starting at leaf margins or where blossoms have fallen.",
+      "Lesions enlarge rapidly, becoming tan to brown with a soft, rotted texture.",
+      "Infected leaves wilt, collapse, and become covered in mold.",
+      "A fuzzy, gray to brownish mold (sporulation) develops on lesions in humid conditions."
+    ],
+    "stems": [
+      "Water-soaked, light brown to tan lesions that can girdle the stem.",
+      "Infected stem areas become soft and may cause the upper portion of the plant to wilt and die.",
+      "Gray mold growth is visible on infected stem areas."
+    ],
+    "fruit": [
+      "Water-soaked spots appear on pods, often starting at the blossom end.",
+      "Pods become soft, rot completely, and are covered in fuzzy gray mold.",
+      "Infected pods may contain shriveled, discolored, or moldy seeds."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Blighting of flowers is a common initial symptom, which then spreads to adjacent tissues.",
+      "Wilting or collapse of entire branches if the main stem is girdled."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible fuzzy, gray to brownish mold (mycelia and conidiophores) on affected tissues.",
+      "Small, black, hard, irregular resting bodies (sclerotia) may form on or in dead tissue late in the season."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Ascochyta blight",
+      "condition_id": "peas.disease_fungal.ascochyta_blight",
+      "key_differences": [
+        "Ascochyta lesions are typically circular, sunken, tan to purplish-brown, and have a distinct dark border, unlike the soft, undefined rot of Botrytis.",
+        "Ascochyta lesions contain tiny black specks (pycnidia), often in a concentric ring pattern, which are absent in Botrytis lesions.",
+        "Botrytis produces a profuse, fuzzy gray mold, whereas Ascochyta does not produce visible mold.",
+        "Ascochyta stem lesions are typically purplish-black and sunken, not the soft tan rot seen with Botrytis."
+      ]
+    },
+    {
+      "condition_name": "Downy mildew",
+      "condition_id": "peas.disease_oomycete.downy_mildew",
+      "key_differences": [
+        "Downy mildew produces a fine, purplish-gray fuzz on the *underside* of leaves, while Botrytis mold is coarser, gray-brown, and can be on any plant part.",
+        "Downy mildew causes distinct yellow, angular blotches on the upper leaf surface, corresponding to the fuzz below.",
+        "Botrytis causes a rapidly expanding, water-soaked rot without the angular leaf spots characteristic of downy mildew."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Increase plant spacing and orient rows with prevailing winds to promote air circulation.",
+      "Avoid overhead irrigation; use drip irrigation to keep foliage dry.",
+      "Practice crop rotation with non-host crops (e.g., cereals) for at least 2-3 years.",
+      "Remove and destroy infected plant debris after harvest to reduce overwintering inoculum.",
+      "Control weeds to improve airflow and reduce humidity within the canopy."
+    ],
+    "biological": [
+      "Application of registered bio-fungicides containing beneficial microbes like *Bacillus subtilis* or *Trichoderma harzianum*."
+    ],
+    "chemical": [
+      "Preventative application of fungicides (e.g., boscalid, pyraclostrobin, fenhexamid) during high-risk periods like flowering and early pod development.",
+      "Rotate fungicide modes of action to prevent the development of pathogen resistance."
+    ],
+    "notes": "Integrated management combining cultural practices to create an unfavorable environment for the pathogen with timely fungicide applications is the most effective strategy."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/peas/downy_mildew.json b/diseases_knowledge_base/peas/downy_mildew.json
new file mode 100644
index 0000000000000000000000000000000000000000..a73284c14f4ea7576f44e2730dcd53249e800cac
--- /dev/null
+++ b/diseases_knowledge_base/peas/downy_mildew.json
@@ -0,0 +1,146 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "peas.disease_fungal.downy_mildew",
+  "aliases": [
+    "pea downy mildew"
+  ],
+  "crop": {
+    "common_name": "Peas",
+    "scientific_name": "Pisum sativum",
+    "family": "Fabaceae"
+  },
+  "condition": {
+    "common_name": "Downy mildew",
+    "scientific_name": "Peronospora viciae f. sp. pisi",
+    "alt_names": [],
+    "pathogen": {
+      "type": "disease_oomycete",
+      "taxonomy": {
+        "kingdom": "Stramenopila",
+        "phylum": "Oomycota",
+        "class": "Oomycetes",
+        "order": "Peronosporales",
+        "family": "Peronosporaceae",
+        "genus": "Peronospora",
+        "species": "viciae"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "windborne sporangia",
+      "rain splash",
+      "contaminated seed"
+    ],
+    "overwintering": [
+      "oospores in soil",
+      "infected crop debris",
+      "systemically infected volunteer plants",
+      "on seed"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "cool temperatures",
+      "high humidity",
+      "prolonged leaf wetness",
+      "dense plant canopies",
+      "poor air circulation"
+    ],
+    "temp_c_day": [
+      10,
+      18
+    ],
+    "temp_c_night": [
+      4,
+      10
+    ],
+    "relative_humidity_pct": [
+      90,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 4
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of total leaf area affected with lesions; a few scattered lesions on lower leaves.",
+    "moderate": "11-40% of leaf area affected; multiple lesions on lower and mid-canopy leaves; some leaf yellowing and minor defoliation.",
+    "severe": ">40% of leaf area affected; extensive lesions throughout the canopy, significant defoliation, and visible infection on stems and pods.",
+    "notes": "Severity is estimated as the percentage of the total photosynthetic area of the plant showing symptoms (chlorosis, necrosis, and visible sporulation)."
+  },
+  "symptoms": {
+    "leaves": [
+      "Irregular, pale green to yellowish blotches appear on the upper leaf surface.",
+      "Lesions are often limited by leaf veins, giving them an angular shape.",
+      "A downy, grayish-purple mold grows on the underside (abaxial surface) of leaves, corresponding to the upper surface blotches.",
+      "Infected leaves may curl, turn necrotic, and fall off prematurely.",
+      "Systemic infection in seedlings can cause a grayish discoloration and stunting."
+    ],
+    "stems": [
+      "Systemic infections can cause stunting and discoloration of the entire stem.",
+      "Lesions are less common but can appear as elongated, water-soaked areas with sporulation under high humidity."
+    ],
+    "fruit": [
+      "Pods can develop large, water-soaked, or brownish lesions.",
+      "The characteristic grayish-purple mold may grow on infected pods, especially in humid conditions.",
+      "Infected pods may become distorted or contain shriveled, undeveloped seeds."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Stunting and general yellowing (chlorosis), particularly from early, systemic infection.",
+      "Reduced plant vigor and overall yield."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible grayish-purple, fuzzy or downy growth on the abaxial (lower) leaf surfaces and other infected parts.",
+      "Microscopic view reveals dichotomously branched sporangiophores bearing lemon-shaped sporangia."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Powdery mildew",
+      "condition_id": "peas.disease_fungal.powdery_mildew",
+      "key_differences": [
+        "Powdery mildew produces a white, powdery growth primarily on the upper leaf surface, while downy mildew's growth is grayish-purple and on the lower surface.",
+        "Downy mildew causes distinct yellow, angular lesions on the upper leaf surface; powdery mildew covers the leaf in a more uniform white fungal mat.",
+        "Downy mildew thrives in cool, moist conditions, while powdery mildew often prefers warmer, drier conditions with high ambient humidity."
+      ]
+    },
+    {
+      "condition_name": "Ascochyta blight",
+      "condition_id": "peas.disease_fungal.ascochyta_blight",
+      "key_differences": [
+        "Ascochyta lesions are circular to oval, tan to dark brown, and often have a 'target-like' appearance with tiny black dots (pycnidia) in the center.",
+        "Downy mildew lacks pycnidia and has angular, yellowish lesions on the upper surface.",
+        "Downy mildew produces a fuzzy mold on the leaf underside; Ascochyta does not."
+      ]
+    },
+    {
+      "condition_name": "Botrytis blight",
+      "condition_id": "peas.disease_fungal.botrytis_blight",
+      "key_differences": [
+        "Botrytis produces a dense, fuzzy, gray-to-brown mold, often on flowers and pods, not typically confined to the underside of distinct leaf lesions.",
+        "Botrytis lesions are rapidly expanding, water-soaked, and irregular, lacking the angular, vein-limited shape of downy mildew leaf spots.",
+        "The sporulation of downy mildew is more purplish-gray and less 'fluffy' or dense than that of Botrytis (gray mold)."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified disease-free seed to prevent introduction.",
+      "Practice crop rotation with non-host crops for at least 3-4 years.",
+      "Improve air circulation through wider plant spacing and weed control.",
+      "Manage irrigation to minimize leaf wetness duration; avoid overhead watering late in the day.",
+      "Remove and destroy infected crop debris after harvest to reduce overwintering inoculum."
+    ],
+    "biological": [
+      "Bio-fungicides based on *Bacillus subtilis* or other microbes may offer some suppression when applied preventatively."
+    ],
+    "chemical": [
+      "Apply protective and systemic fungicides (e.g., metalaxyl, mancozeb, azoxystrobin) prior to or at the first sign of disease, especially during favorable weather conditions.",
+      "Fungicidal seed treatments are effective at controlling seedborne inoculum and early seedling infections."
+    ],
+    "notes": "An integrated pest management (IPM) approach is most effective. Monitor weather forecasts to time fungicide applications. Rotate fungicide modes of action to prevent resistance."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/peas/fusarium_wilt.json b/diseases_knowledge_base/peas/fusarium_wilt.json
new file mode 100644
index 0000000000000000000000000000000000000000..0d782519ff58afcc3914eaddb73efe37de49a603
--- /dev/null
+++ b/diseases_knowledge_base/peas/fusarium_wilt.json
@@ -0,0 +1,136 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "peas.disease_fungal.fusarium_wilt",
+  "aliases": [
+    "Pea wilt",
+    "Fusarium wilt of pea"
+  ],
+  "crop": {
+    "common_name": "Peas",
+    "scientific_name": "Pisum sativum",
+    "family": "Fabaceae"
+  },
+  "condition": {
+    "common_name": "Fusarium wilt",
+    "scientific_name": "Fusarium oxysporum f. sp. pisi",
+    "alt_names": [
+      "Pea wilt"
+    ],
+    "pathogen": {
+      "type": "fungus",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Sordariomycetes",
+        "order": "Hypocreales",
+        "family": "Nectriaceae",
+        "genus": "Fusarium",
+        "species": "oxysporum"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [
+      "contaminated farm equipment"
+    ],
+    "dispersal": [
+      "soil",
+      "water (irrigation/rain splash)",
+      "infected seed"
+    ],
+    "overwintering": [
+      "chlamydospores in soil",
+      "infected crop debris",
+      "infected seed"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "warm soil temperatures",
+      "acidic soils (pH < 6.5)",
+      "poor soil drainage",
+      "soil compaction",
+      "high nitrogen fertilization",
+      "short crop rotations with susceptible hosts"
+    ],
+    "temp_c_day": [
+      22,
+      28
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "One or a few lower leaves are yellowing or have begun to wilt. Plant is not noticeably stunted.",
+    "moderate": "Significant yellowing and wilting affecting the lower half of the plant. Stunting is evident. Plant may be leaning.",
+    "severe": "Entire plant is yellow, severely wilted, or dead. Stem base may be dark and shriveled. Significant stunting.",
+    "notes": "Severity is assessed on a whole-plant basis, focusing on the proportion of the plant showing symptoms. Fusarium wilt often appears in patches in a field."
+  },
+  "symptoms": {
+    "leaves": [
+      "Yellowing (chlorosis) begins on the lowest leaves and progresses up the plant.",
+      "Leaves and stipules curl downwards.",
+      "Wilting of foliage, which may be more pronounced during the hottest part of the day.",
+      "Affected leaves become dry and brittle before dying."
+    ],
+    "stems": [
+      "Vascular tissue in the lower stem and taproot shows a characteristic orange, reddish-brown, or dark brown discoloration when cut open.",
+      "Stem base may appear thickened or swollen in some cases.",
+      "In advanced stages, the stem near the soil line may become necrotic."
+    ],
+    "fruit": [
+      "Pods may be underdeveloped, poorly filled, or absent on severely affected plants."
+    ],
+    "roots": [
+      "The primary diagnostic sign is the internal discoloration of the vascular cylinder, which extends from the roots up into the stem."
+    ],
+    "whole_plant": [
+      "Overall stunting of plant growth.",
+      "Wilting often starts on one side of the plant (unilateral wilt).",
+      "Eventual collapse and death of the plant."
+    ],
+    "signs_microscopic_or_visible": [
+      "No visible fungal growth (e.g., mycelium, spores) on the external plant surfaces under field conditions."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Ascochyta blight",
+      "condition_id": "peas.disease_fungal.ascochyta_blight",
+      "key_differences": [
+        "Ascochyta causes distinct, circular, tan-to-purplish-black lesions on leaves, stems, and pods; Fusarium wilt causes a systemic yellowing and wilting without discrete foliar lesions.",
+        "Ascochyta lesions often contain tiny black specks (pycnidia), which are absent in Fusarium wilt.",
+        "Fusarium wilt is defined by the internal reddish-brown vascular discoloration in the stem, a symptom not caused by Ascochyta."
+      ]
+    },
+    {
+      "condition_name": "Stem rot",
+      "condition_id": "peas.disease_fungal.stem_rot",
+      "key_differences": [
+        "Stem rots typically cause a visible, soft, water-soaked decay or lesion at the soil line, often with white fungal growth (mycelium); Fusarium wilt symptoms are primarily internal.",
+        "Fusarium wilt causes a slow progression of wilting from the bottom up; severe stem rot often leads to a rapid collapse of the entire plant.",
+        "The key diagnostic for Fusarium is the reddish-brown vascular discoloration extending far up the stem, which is absent in most common stem rots."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant certified disease-free seed.",
+      "Select resistant pea varieties; many are available for specific races of the pathogen.",
+      "Implement long crop rotations (at least 4-5 years) with non-host crops like cereals.",
+      "Improve soil drainage and avoid over-irrigation.",
+      "Manage soil pH to be between 6.5 and 7.0, as acidic soils favor the disease."
+    ],
+    "biological": [
+      "Soil amendments with beneficial microbes like *Trichoderma* or *Bacillus subtilis* may help suppress the pathogen population."
+    ],
+    "chemical": [
+      "Fungicide seed treatments can protect seedlings and reduce seed-borne spread.",
+      "Soil fumigation is effective but generally not economically viable for commercial pea production."
+    ],
+    "notes": "The most effective management strategy is the use of resistant cultivars combined with long crop rotations, as the pathogen can persist in the soil for over 10 years."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/peas/healthy.json b/diseases_knowledge_base/peas/healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..fb613f7c2ad8978c2480dfb6f8652338fce30342
--- /dev/null
+++ b/diseases_knowledge_base/peas/healthy.json
@@ -0,0 +1,123 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "peas.healthy.healthy",
+  "aliases": [
+    "normal peas",
+    "no disease"
+  ],
+  "crop": {
+    "common_name": "Peas",
+    "scientific_name": "Pisum sativum",
+    "family": "Fabaceae"
+  },
+  "condition": {
+    "common_name": "Healthy",
+    "scientific_name": null,
+    "alt_names": [
+      "Normal",
+      "Asymptomatic"
+    ],
+    "pathogen": {
+      "type": "none",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "healthy",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [],
+    "temp_c_day": [],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "No visible signs of disease, stress, or nutrient deficiency. Plant is vigorous and appropriately developed for its growth stage.",
+    "moderate": "Not applicable for healthy condition.",
+    "severe": "Not applicable for healthy condition.",
+    "notes": "This rubric confirms the absence of symptoms. Any deviation from the 'mild' description indicates a potential issue that is not 'healthy'."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uniformly green color, appropriate for the variety (may range from light to dark green).",
+      "Leaves are turgid, fully expanded, and show no signs of wilting, curling, or distortion.",
+      "Leaf surfaces are smooth and free of spots, lesions, pustules, or powdery growth.",
+      "No yellowing (chlorosis) or browning (necrosis) is present.",
+      "Tendrils are green and flexible."
+    ],
+    "stems": [
+      "Stems are firm, upright, or climbing as expected for the variety.",
+      "Stem color is a uniform green, without any streaks, cankers, or dark lesions.",
+      "Stem base is firm and not discolored or water-soaked."
+    ],
+    "fruit": [
+      "Pods are well-formed, plump, and have a uniform green color.",
+      "Pod surfaces are smooth and free of spots, sunken lesions, or insect holes.",
+      "Seeds inside the pod are developing normally."
+    ],
+    "roots": [
+      "Root system is well-developed, with a white or light-tan color.",
+      "No signs of rot, discoloration, or galls.",
+      "Nitrogen-fixing nodules (if present) are typically pinkish-white inside."
+    ],
+    "whole_plant": [
+      "Vigorous growth appropriate for the age and variety.",
+      "Plant is upright and not stunted or wilted."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "powdery_mildew",
+      "condition_id": "peas.fungal.powdery_mildew",
+      "key_differences": [
+        "Healthy leaves have a clean, uniform green surface, whereas early powdery mildew shows small, white, talc-like spots.",
+        "Healthy stems are smooth and green, unlike stems with powdery mildew which can become covered in a white fungal mat.",
+        "A healthy plant has no powdery growth on any surface."
+      ]
+    },
+    {
+      "condition_name": "fusarium_wilt",
+      "condition_id": "peas.fungal.fusarium_wilt",
+      "key_differences": [
+        "Healthy plants maintain green foliage, while fusarium wilt causes distinct yellowing (chlorosis) that typically starts on the lower leaves and progresses upward.",
+        "Healthy plants are turgid and upright, whereas fusarium wilt causes wilting, often on one side of the plant first.",
+        "The internal vascular tissue of a healthy stem base is white/green; in fusarium wilt, it is often reddish-brown or discolored."
+      ]
+    },
+    {
+      "condition_name": "ascochyta_blight",
+      "condition_id": "peas.fungal.ascochyta_blight",
+      "key_differences": [
+        "Healthy leaves, stems, and pods are unblemished. Ascochyta blight appears as small, circular, purplish-black to tan spots, often with a darker border.",
+        "Healthy stems are uniformly green and firm, while this disease can cause dark, sunken lesions (cankers) at the stem base, leading to lodging.",
+        "Healthy pods are smooth and green; infected pods develop sunken, circular lesions that can affect seed quality."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified disease-free seed.",
+      "Practice crop rotation with non-host crops (e.g., cereals) for 3-4 years.",
+      "Ensure good soil drainage and avoid over-irrigation.",
+      "Maintain adequate plant spacing to promote air circulation.",
+      "Remove and destroy crop debris after harvest."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "Management for a 'healthy' state focuses on preventative measures to maintain plant health and avoid disease onset."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/peas/leaf_roll.json b/diseases_knowledge_base/peas/leaf_roll.json
new file mode 100644
index 0000000000000000000000000000000000000000..f01a0befae46efc780337db2a804044f00bacdb8
--- /dev/null
+++ b/diseases_knowledge_base/peas/leaf_roll.json
@@ -0,0 +1,124 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "peas.unknown.leaf_roll",
+  "aliases": [
+    "Pea leaf roll",
+    "Pea leaf rolling"
+  ],
+  "crop": {
+    "common_name": "Pea",
+    "scientific_name": "Pisum sativum",
+    "family": "Fabaceae"
+  },
+  "condition": {
+    "common_name": "Leaf Roll",
+    "scientific_name": null,
+    "alt_names": [],
+    "pathogen": {
+      "type": "unknown",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [
+      "Aphids (primarily Pea aphid, Acyrthosiphon pisum)"
+    ],
+    "dispersal": [
+      "Insect movement between plants and fields"
+    ],
+    "overwintering": [
+      "In perennial legume hosts (e.g., alfalfa, clover)",
+      "In overwintering aphid vectors"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High aphid populations early in the growing season",
+      "Proximity to infected perennial host plants",
+      "Mild winters that favor aphid survival",
+      "Warm, dry conditions that promote aphid reproduction and movement"
+    ],
+    "temp_c_day": [
+      15,
+      25
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "A few scattered plants show slight upward or downward rolling of upper leaf margins. No significant stunting or yellowing is visible.",
+    "moderate": "Up to 30% of plants in a given area are affected. Leaf rolling is obvious, often accompanied by some yellowing and slight stunting.",
+    "severe": "More than 30% of plants are affected. Severe leaf rolling, prominent yellowing, and significant stunting are widespread. Pod development is visibly reduced.",
+    "notes": "Severity is based on the percentage of plants showing symptoms and the degree of stunting, as this best correlates with potential yield loss. Leaf roll is often caused by viruses, where impact is systemic."
+  },
+  "symptoms": {
+    "leaves": [
+      "Leaf margins roll upwards or downwards, often becoming thickened and leathery or brittle.",
+      "Symptoms typically appear on the youngest leaves first.",
+      "Affected leaves may turn pale green or yellow, sometimes with slight vein clearing.",
+      "The overall texture of affected leaves is stiff, not wilted."
+    ],
+    "stems": [
+      "Internodes are often shortened, leading to a compact, bushy appearance."
+    ],
+    "fruit": [
+      "Pods may be smaller, deformed, or fewer in number than on healthy plants.",
+      "Pod set can be significantly reduced in severely affected plants."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Overall plant growth is stunted, sometimes severely.",
+      "The plant may appear abnormally stiff and upright."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Fusarium Wilt",
+      "condition_id": "peas.fungal.fusarium_wilt",
+      "key_differences": [
+        "Fusarium wilt symptoms (yellowing, wilting) start on lower leaves and progress upwards; leaf roll typically starts on upper leaves.",
+        "Wilted leaves in Fusarium are flaccid, while in viral leaf roll they are often stiff and brittle.",
+        "A key sign of Fusarium wilt is a reddish-brown discoloration inside the stem's vascular tissue near the soil line, which is absent in leaf roll.",
+        "Fusarium wilt causes a true wilt, whereas leaf roll plants are stunted but not typically wilted."
+      ]
+    },
+    {
+      "condition_name": "Downy Mildew",
+      "condition_id": "peas.oomycete.downy_mildew",
+      "key_differences": [
+        "Downy mildew is characterized by a fuzzy, purplish-grey mold on the underside of leaves, which is absent in leaf roll.",
+        "Downy mildew causes distinct, angular, yellow-to-brown lesions on the upper leaf surface.",
+        "Any leaf curling with downy mildew is secondary to the lesions, not the primary, systemic symptom.",
+        "Downy mildew is favored by cool, moist conditions, whereas the aphid vectors for viral leaf roll are often favored by warmer, drier weather."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified virus-free seed to avoid introducing the pathogen.",
+      "Control aphid populations early in the season through monitoring and timely intervention.",
+      "Remove and destroy infected plants to reduce the source of the virus within the crop.",
+      "Manage nearby perennial legume weeds and host crops (e.g., alfalfa, clover) that can harbor the virus and aphids."
+    ],
+    "biological": [
+      "Promote natural enemies of aphids, such as lady beetles, lacewings, and parasitic wasps, by minimizing broad-spectrum insecticide use."
+    ],
+    "chemical": [
+      "Apply systemic or contact insecticides to control aphid vectors. Timing is critical and should target early aphid migration into the field.",
+      "Seed treatments with systemic insecticides can provide early-season protection against aphids."
+    ],
+    "notes": "Management is preventative and focuses on controlling the aphid vector, as there is no cure for an already-infected plant."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/peas/pod_borer_damage.json b/diseases_knowledge_base/peas/pod_borer_damage.json
new file mode 100644
index 0000000000000000000000000000000000000000..4f237f9ee9edcfdc70eb705e2a230f2ca460e63a
--- /dev/null
+++ b/diseases_knowledge_base/peas/pod_borer_damage.json
@@ -0,0 +1,129 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "peas.pest_insect.pod_borer_damage",
+  "aliases": [
+    "pea moth damage",
+    "pea pod borer",
+    "podworm damage"
+  ],
+  "crop": {
+    "common_name": "Pea",
+    "scientific_name": "Pisum sativum",
+    "family": "Fabaceae"
+  },
+  "condition": {
+    "common_name": "Pod Borer Damage",
+    "scientific_name": "Cydia nigricana",
+    "alt_names": [
+      "Pea Moth"
+    ],
+    "pathogen": {
+      "type": "insect",
+      "taxonomy": {
+        "kingdom": "Animalia",
+        "phylum": "Arthropoda",
+        "class": "Insecta",
+        "order": "Lepidoptera",
+        "family": "Tortricidae",
+        "genus": "Cydia",
+        "species": "nigricana"
+      }
+    }
+  },
+  "issue_type": "pest_insect",
+  "transmission": {
+    "vectors": [
+      "Adult moth"
+    ],
+    "dispersal": [
+      "Adult moth flight"
+    ],
+    "overwintering": [
+      "Pupae overwinter in silk cocoons in the soil."
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Warm, dry weather during flowering and pod set",
+      "Fields with a history of infestation",
+      "Proximity to alternative hosts like vetch"
+    ],
+    "temp_c_day": [
+      18,
+      28
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "1-10% of pods show signs of entry holes or damage.",
+    "moderate": "11-40% of pods show damage; some pods may contain larvae.",
+    "severe": ">40% of pods are damaged; widespread presence of larvae and frass.",
+    "notes": "Severity is assessed by the percentage of pods affected on the plant or in a sample. Damage includes entry/exit holes, internal feeding, and presence of frass or larvae."
+  },
+  "symptoms": {
+    "leaves": [
+      "Leaves are generally unaffected by direct pod borer feeding."
+    ],
+    "stems": [
+      "Stems are typically not damaged."
+    ],
+    "fruit": [
+      "Small, circular entry or exit holes on the surface of pea pods.",
+      "Holes may have a small, discolored ring around them.",
+      "Internal feeding damage visible when pods are opened.",
+      "Developing peas (seeds) are partially or fully eaten.",
+      "Brown, granular insect excrement (frass) is present inside the pod.",
+      "Pods may appear distorted, yellowed, or ripen prematurely.",
+      "Silken webbing may be present on or inside the pod."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Plant health is often unaffected, with damage localized to the pods."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible pale yellow to greenish-white caterpillars (larvae) inside pods.",
+      "Visible frass (insect excrement) inside pods."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Ascochyta Blight",
+      "condition_id": "peas.fungal.ascochyta_blight",
+      "key_differences": [
+        "Ascochyta lesions are sunken, purplish-black spots, not clean-cut holes.",
+        "Ascochyta blight also causes distinct lesions on leaves and stems, whereas pod borer damage is confined to pods.",
+        "No larvae, webbing, or frass are present inside pods with Ascochyta blight.",
+        "Ascochyta lesions on pods often have a target-like appearance with tiny black dots (pycnidia)."
+      ]
+    },
+    {
+      "condition_name": "Anthracnose",
+      "condition_id": "peas.fungal.anthracnose",
+      "key_differences": [
+        "Anthracnose causes dark, sunken, circular lesions, not small, drilled holes.",
+        "Lesions from anthracnose have a raised, dark border and a lighter center, which may contain pinkish spore masses in moist conditions.",
+        "Damage is a necrotic lesion, not a physical hole leading to an eaten-out interior.",
+        "No internal frass or larvae are associated with anthracnose."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Crop rotation with non-legume crops for at least 3 years.",
+      "Post-harvest tillage to expose overwintering pupae to predators and weather.",
+      "Planting early-maturing varieties to escape peak moth populations.",
+      "Remove and destroy infested pods and crop debris."
+    ],
+    "biological": [
+      "Conservation and encouragement of natural enemies like parasitic wasps."
+    ],
+    "chemical": [
+      "Application of registered insecticides timed with moth flight and egg-laying.",
+      "Use of pheromone traps to monitor adult moth populations and determine optimal spray timing."
+    ],
+    "notes": "Effective management relies heavily on monitoring adult moth populations with pheromone traps to time interventions precisely before larvae enter the pods."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/peas/powdery_mildew.json b/diseases_knowledge_base/peas/powdery_mildew.json
new file mode 100644
index 0000000000000000000000000000000000000000..e87e043e785bd648b9d37895544ef885e0485b9e
--- /dev/null
+++ b/diseases_knowledge_base/peas/powdery_mildew.json
@@ -0,0 +1,130 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "peas.disease_fungal.powdery_mildew",
+  "aliases": [
+    "Pea powdery mildew"
+  ],
+  "crop": {
+    "common_name": "Peas",
+    "scientific_name": "Pisum sativum",
+    "family": "Fabaceae"
+  },
+  "condition": {
+    "common_name": "Powdery Mildew",
+    "scientific_name": "Erysiphe pisi",
+    "alt_names": [],
+    "pathogen": {
+      "type": "fungus",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Leotiomycetes",
+        "order": "Erysiphales",
+        "family": "Erysiphaceae",
+        "genus": "Erysiphe",
+        "species": "pisi"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "Windborne conidia",
+      "Infected crop debris"
+    ],
+    "overwintering": [
+      "As dormant mycelium on infected plant debris",
+      "As chasmothecia (sexual fruiting bodies) on crop residue"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High relative humidity (but dry leaf surfaces)",
+      "Moderate temperatures",
+      "Dense plant canopies with poor air circulation",
+      "Late-sown crops"
+    ],
+    "temp_c_day": [
+      15,
+      25
+    ],
+    "temp_c_night": [
+      10,
+      20
+    ],
+    "relative_humidity_pct": [
+      70,
+      95
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of upper leaf surface covered by sparse, discrete, white mycelial patches.",
+    "moderate": "11-40% of leaf surface covered; patches are coalescing and denser; some lower leaf chlorosis may be present.",
+    "severe": ">40% of leaf surface covered; dense, felt-like mycelial mats cover leaves, stems, and pods; significant chlorosis, necrosis, and premature defoliation is visible.",
+    "notes": "Severity is assessed on the upper surfaces of photosynthetically active leaves. Pod infection should also be noted as it impacts yield and quality. Unlike many other fungal diseases, powdery mildew does not require free water on the leaf surface for infection, hence the threshold of 0 hours."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, discrete, white spots with a talc-like texture appear first on the upper surface of older, lower leaves.",
+      "Spots expand and coalesce to form a dense, white to grayish, powdery mat.",
+      "Infected leaves may turn yellow (chlorotic), then brown (necrotic), and senesce prematurely.",
+      "Tiny, black specks (chasmothecia) may be visible embedded in the white mycelium late in the season.",
+      "The white powdery growth can be rubbed off with a finger, revealing relatively undamaged tissue underneath in early stages."
+    ],
+    "stems": [
+      "White, powdery patches can develop on stems and petioles, especially in severe infections."
+    ],
+    "fruit": [
+      "Powdery white patches can form on the surface of pods, sometimes referred to as 'fuzzy pods'.",
+      "Severe pod infection can cause distortion, reduced seed size, and marketability issues."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Infected plants may appear stunted or less vigorous than healthy plants.",
+      "Severe infections give the entire plant canopy a whitewashed or dusty appearance."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible white to grayish superficial mycelium and conidia (asexual spores) on plant surfaces."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Downy Mildew",
+      "condition_id": "peas.disease_fungal.downy_mildew",
+      "key_differences": [
+        "Powdery mildew is white and powdery, primarily on the *upper* leaf surface; downy mildew is grayish-purple and fuzzy, primarily on the *lower* leaf surface.",
+        "Powdery mildew spots are superficial; downy mildew causes systemic yellow to brownish lesions visible on *both* leaf surfaces.",
+        "Powdery mildew thrives in high humidity but dry leaves; downy mildew requires high humidity *and* leaf wetness for infection."
+      ]
+    },
+    {
+      "condition_name": "Ascochyta Blight",
+      "condition_id": "peas.disease_fungal.ascochyta_blight",
+      "key_differences": [
+        "Powdery mildew is a superficial white powder; Ascochyta blight causes distinct, sunken, tan-to-brown lesions, often with a dark border.",
+        "Ascochyta lesions contain tiny black dots (pycnidia) within the necrotic tissue, which are absent in powdery mildew.",
+        "Ascochyta blight often causes stem lesions near the soil line ('foot rot'), a symptom not caused by powdery mildew."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant resistant or tolerant pea varieties.",
+      "Ensure good air circulation through wider row spacing and weed control.",
+      "Avoid excessive nitrogen fertilization, which promotes lush, susceptible growth.",
+      "Rotate crops with non-hosts for at least 2 years.",
+      "Incorporate or remove infected crop debris after harvest to reduce overwintering inoculum."
+    ],
+    "biological": [
+      "Application of bio-fungicides containing *Bacillus subtilis* or potassium bicarbonate can suppress the disease."
+    ],
+    "chemical": [
+      "Apply registered fungicides (e.g., sulfur-based, strobilurins, DMIs) at the first sign of disease.",
+      "Ensure thorough spray coverage, as the fungus can be protected within the dense plant canopy."
+    ],
+    "notes": "Early detection is crucial. Fungicide applications are most effective when applied preventatively or at the very early stages of an epidemic."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/peas/stem_rot.json b/diseases_knowledge_base/peas/stem_rot.json
new file mode 100644
index 0000000000000000000000000000000000000000..40ddb97a6067a675cf8e5aea42bbd0a73223a12a
--- /dev/null
+++ b/diseases_knowledge_base/peas/stem_rot.json
@@ -0,0 +1,148 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "peas.disease_fungal.stem_rot",
+  "aliases": [
+    "sclerotinia stem rot",
+    "white mold",
+    "cottony rot"
+  ],
+  "crop": {
+    "common_name": "Pea",
+    "scientific_name": "Pisum sativum",
+    "family": "Fabaceae"
+  },
+  "condition": {
+    "common_name": "Stem Rot",
+    "scientific_name": "Sclerotinia sclerotiorum",
+    "alt_names": [
+      "White Mold",
+      "Sclerotinia Blight",
+      "Cottony Rot"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Leotiomycetes",
+        "order": "Helotiales",
+        "family": "Sclerotiniaceae",
+        "genus": "Sclerotinia",
+        "species": "sclerotiorum"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "Wind-blown ascospores released from apothecia",
+      "Infected seed",
+      "Movement of contaminated soil and equipment"
+    ],
+    "overwintering": [
+      "As sclerotia (hard, black fungal structures) in the soil",
+      "Mycelium in infected plant debris"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Cool, moist conditions",
+      "Dense plant canopies with poor air circulation",
+      "Prolonged periods of canopy wetness (rain, dew, irrigation)",
+      "Infection often initiated on senescing flower petals"
+    ],
+    "temp_c_day": [
+      15,
+      21
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      90,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 24
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "One or two small, water-soaked lesions on lower stems or petioles; no visible mycelium or wilting.",
+    "moderate": "Expanding lesions with visible white, cottony mycelium; partial wilting of affected stems or leaves.",
+    "severe": "Extensive mycelial growth girdling the stem, causing plant collapse; hard, black sclerotia are visible within or on the stem.",
+    "notes": "Severity is assessed by the extent of stem girdling and plant collapse, which directly impacts yield. The presence of white mycelium and black sclerotia are key indicators of moderate to severe infection."
+  },
+  "symptoms": {
+    "leaves": [
+      "Leaves on infected stems turn yellow, then wilt and become necrotic.",
+      "Petioles develop water-soaked lesions where they attach to the main stem.",
+      "Infected leaves in contact with the soil may develop a watery rot."
+    ],
+    "stems": [
+      "Water-soaked, soft lesions appear, often at the soil line, nodes, or where flowers attach.",
+      "Lesions expand rapidly, becoming bleached, tan, or light gray.",
+      "A dense, white, cottony mycelial growth covers the lesion area in humid conditions.",
+      "The stem becomes soft and rots, leading to plant lodging or collapse."
+    ],
+    "fruit": [
+      "Pods in contact with infected stems or soil develop a watery soft rot.",
+      "Pods become covered in the characteristic white, cottony mycelium.",
+      "Hard, black sclerotia may form inside or on the surface of infected pods."
+    ],
+    "roots": [
+      "Typically not the primary site of infection, but rot can progress from the stem base to the crown."
+    ],
+    "whole_plant": [
+      "Wilting of specific branches or the entire plant above the infection point.",
+      "Sudden plant collapse or death, especially in dense, moist canopies."
+    ],
+    "signs_microscopic_or_visible": [
+      "Prominent, white, cottony mycelium on stems, leaves, and pods.",
+      "Formation of hard, irregular, black sclerotia (1-10 mm), resembling rodent droppings, on or inside stems and pods."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Botrytis Blight",
+      "condition_id": "peas.disease_fungal.botrytis_blight",
+      "key_differences": [
+        "Mycelium is a fuzzy, grayish-brown mold, not the bright white, cottony growth of Sclerotinia.",
+        "Lesions are typically tan or light brown and less 'watery' or 'bleached' than early stem rot lesions.",
+        "Sclerotinia produces large, hard, black sclerotia; Botrytis produces much smaller, less distinct sclerotia, if any."
+      ]
+    },
+    {
+      "condition_name": "Ascochyta Blight",
+      "condition_id": "peas.disease_fungal.ascochyta_blight",
+      "key_differences": [
+        "Causes purplish-black to brown, sunken lesions on the stem, often with a target-like appearance.",
+        "Ascochyta lesions contain tiny black specks (pycnidia), not white cottony mycelium or large sclerotia.",
+        "Ascochyta blight is characterized by distinct spots on leaves and pods, whereas stem rot causes a more generalized, watery rot."
+      ]
+    },
+    {
+      "condition_name": "Fusarium Wilt",
+      "condition_id": "peas.disease_fungal.fusarium_wilt",
+      "key_differences": [
+        "Causes yellowing and wilting starting from the lower leaves upwards, with no external stem lesions, rot, or mycelium.",
+        "Slicing the lower stem of a Fusarium-infected plant reveals reddish-brown discoloration of the vascular tissue.",
+        "Fusarium wilt is a systemic disease causing a true wilt, while stem rot causes physical collapse due to stem decay."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Practice crop rotation with non-host crops (e.g., cereals, corn) for at least 3-4 years.",
+      "Improve air circulation by using wider row spacing and avoiding excessive plant density.",
+      "Avoid excessive nitrogen fertilization, which promotes dense, lush canopies.",
+      "Manage broadleaf weeds that can serve as alternative hosts for the pathogen.",
+      "Ensure good soil drainage to reduce surface moisture."
+    ],
+    "biological": [
+      "Application of commercial bio-fungicides containing *Coniothyrium minitans* to the soil to parasitize and reduce sclerotia."
+    ],
+    "chemical": [
+      "Apply registered foliar fungicides (e.g., boscalid, pyraclostrobin, fluopyram) preventatively, typically at early to full bloom.",
+      "Fungicide applications aim to protect senescing flower petals, which are a primary infection court."
+    ],
+    "notes": "Management is primarily preventative, focusing on reducing soil inoculum (sclerotia) and protecting the plant during the susceptible flowering period under favorable environmental conditions."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/pepper/anthracnose.json b/diseases_knowledge_base/pepper/anthracnose.json
new file mode 100644
index 0000000000000000000000000000000000000000..82d4bdf24a1676d863d2a78d254a4902b6d7c0e6
--- /dev/null
+++ b/diseases_knowledge_base/pepper/anthracnose.json
@@ -0,0 +1,132 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "pepper.disease_fungal.anthracnose",
+  "aliases": [
+    "Ripe rot",
+    "Pepper anthracnose"
+  ],
+  "crop": {
+    "common_name": "Pepper",
+    "scientific_name": "Capsicum annuum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "Anthracnose",
+    "scientific_name": "Colletotrichum spp.",
+    "alt_names": [
+      "Ripe rot"
+    ],
+    "pathogen": {
+      "type": "fungus",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Sordariomycetes",
+        "order": "Glomerellales",
+        "family": "Glomerellaceae",
+        "genus": "Colletotrichum",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [
+      "Splashing water (rain, irrigation)",
+      "Insects",
+      "Field workers and equipment"
+    ],
+    "dispersal": [
+      "Wind-driven rain",
+      "Contaminated tools",
+      "Infected transplants",
+      "Infected seed"
+    ],
+    "overwintering": [
+      "Infected seed",
+      "On crop debris",
+      "On alternative weed hosts (e.g., nightshade)"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High humidity",
+      "Frequent rainfall or overhead irrigation",
+      "Warm temperatures",
+      "Dense plant canopy with poor air circulation",
+      "Presence of infected fruit or debris"
+    ],
+    "temp_c_day": [
+      20,
+      27
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      80,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 12
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "1-5% of a single fruit's surface shows one or more small, distinct lesions.",
+    "moderate": "6-25% of a fruit's surface is affected, with lesions expanding and potentially coalescing.",
+    "severe": ">25% of a fruit's surface is covered by large, coalesced lesions, leading to significant rot and making the fruit unmarketable.",
+    "notes": "Severity is primarily assessed on ripening or mature fruit where symptoms are most evident. Assessment is based on the percentage of fruit surface area affected, but is classified into qualitative tiers. Assessment can be an average across a representative sample of fruit from a plant or plot."
+  },
+  "symptoms": {
+    "leaves": [
+      "Leaf spots are uncommon but can occur.",
+      "Spots are small, circular, and water-soaked, eventually turning grayish-brown with a dark border."
+    ],
+    "stems": [
+      "Stem lesions are rare.",
+      "Appear as dark, sunken, elongated cankers that can girdle the stem under severe conditions."
+    ],
+    "fruit": [
+      "Primary symptom appears on ripening or mature fruit.",
+      "Begins as small, circular, water-soaked, sunken spots.",
+      "Lesions enlarge rapidly, becoming distinctly sunken and dark brown to black.",
+      "Concentric rings often form within the lesion, creating a 'target' appearance.",
+      "Under humid conditions, pink to salmon-colored, gelatinous spore masses (acervuli) appear in the center of the lesions.",
+      "Multiple lesions can merge (coalesce), causing the entire fruit to rot."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Severe infections can lead to premature fruit drop."
+    ],
+    "signs_microscopic_or_visible": [
+      "Presence of pinkish-orange, moist spore masses in the center of fruit lesions."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Bacterial Spot",
+      "condition_id": "pepper.disease_bacterial.bacterial_spot",
+      "key_differences": [
+        "Bacterial spot lesions on fruit are typically small, raised, and scabby, not large and sunken like anthracnose.",
+        "Anthracnose lesions often have distinct concentric rings and pinkish spore masses, which are absent in bacterial spot.",
+        "Leaf spots are much more common and angular with bacterial spot, often with yellow halos, whereas they are rare and circular with anthracnose."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified disease-free seed.",
+      "Practice crop rotation with non-solanaceous crops for at least 2-3 years.",
+      "Promote air circulation via staking and appropriate plant spacing.",
+      "Use drip or furrow irrigation to avoid wetting fruit and foliage.",
+      "Remove and destroy infected plant debris and fruit promptly.",
+      "Mulch to reduce soil splash onto lower fruit."
+    ],
+    "biological": [
+      "Biofungicides containing *Bacillus subtilis* or *Streptomyces* strains may provide some suppression when applied preventatively."
+    ],
+    "chemical": [
+      "Apply preventative fungicides during periods of high risk (warm, wet weather), starting at flowering.",
+      "Rotate fungicides with different modes of action (e.g., FRAC groups 3, 7, 11) to manage resistance.",
+      "Ensure thorough spray coverage, especially on developing fruit."
+    ],
+    "notes": "An integrated pest management (IPM) strategy combining cultural practices with timely fungicide applications is most effective for controlling anthracnose."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/pepper/bacterial_spot.json b/diseases_knowledge_base/pepper/bacterial_spot.json
new file mode 100644
index 0000000000000000000000000000000000000000..2ed61ee727c7c4cfe2d4b34ff84b0ad9692895a8
--- /dev/null
+++ b/diseases_knowledge_base/pepper/bacterial_spot.json
@@ -0,0 +1,134 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "pepper.disease_bacterial.bacterial_spot",
+  "aliases": [
+    "bacterial leaf spot",
+    "scab",
+    "BLS"
+  ],
+  "crop": {
+    "common_name": "pepper",
+    "scientific_name": "Capsicum annuum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "bacterial spot",
+    "scientific_name": "Xanthomonas spp. complex",
+    "alt_names": [
+      "Xanthomonas euvesicatoria",
+      "Xanthomonas vesicatoria",
+      "Xanthomonas perforans",
+      "Xanthomonas gardneri"
+    ],
+    "pathogen": {
+      "type": "disease_bacterial",
+      "taxonomy": {
+        "kingdom": "Bacteria",
+        "phylum": "Proteobacteria",
+        "class": "Gammaproteobacteria",
+        "order": "Xanthomonadales",
+        "family": "Xanthomonadaceae",
+        "genus": "Xanthomonas",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "disease_bacterial",
+  "transmission": {
+    "vectors": [
+      "human activity (tools, hands)"
+    ],
+    "dispersal": [
+      "rain splash",
+      "wind-driven rain",
+      "overhead irrigation",
+      "infected seed",
+      "infected transplants"
+    ],
+    "overwintering": [
+      "infected plant debris",
+      "volunteer pepper plants",
+      "infected seeds",
+      "solanaceous weeds"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high humidity",
+      "frequent rainfall",
+      "warm temperatures",
+      "overhead irrigation",
+      "dense plant canopy"
+    ],
+    "temp_c_day": [
+      24,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 4
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "< 5% of leaf area affected; few, scattered lesions on some leaves.",
+    "moderate": "5-25% of leaf area affected; multiple lesions per leaf, some yellowing or minor leaf drop.",
+    "severe": "> 25% of leaf area affected; extensive lesion coalescence, significant chlorosis, defoliation, and fruit lesions.",
+    "notes": "Severity is assessed on the most affected leaves. Fruit lesions should also be considered in a whole-plant assessment."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, water-soaked, circular to irregular spots (1-3 mm), often appearing first on lower surfaces.",
+      "Lesions become dark brown to black, with a greasy appearance.",
+      "Lesion centers may dry out, turn light tan or gray, and sometimes drop out, creating a 'shot-hole' effect.",
+      "A distinct yellow halo often surrounds newer lesions, which can fade with age.",
+      "Severe infections cause leaves to turn yellow (chlorosis) and drop prematurely, starting from the plant base."
+    ],
+    "stems": [
+      "Elongated, dark brown to black, slightly raised lesions or streaks can appear on stems and petioles."
+    ],
+    "fruit": [
+      "Small, circular, raised, scab-like spots (up to 6 mm) appear on green fruit.",
+      "Fruit lesions are initially water-soaked, then turn brown to black with a cracked, warty, or rough texture.",
+      "Lesions are typically raised and do not have concentric rings or ooze."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Stunted growth and significant defoliation in severe cases, especially from the lower canopy upwards."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "anthracnose",
+      "condition_id": "pepper.disease_fungal.anthracnose",
+      "key_differences": [
+        "Anthracnose fruit lesions are sunken and circular with concentric rings and salmon-colored spore masses; bacterial spot lesions are raised, scab-like, and lack rings.",
+        "Anthracnose leaf spots are often larger and tan, while bacterial spot lesions are small, dark, and greasy-looking.",
+        "Anthracnose is a soft rot on fruit, whereas bacterial spot lesions are hard and scabby."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified disease-free seed and transplants.",
+      "Rotate crops away from solanaceous plants for at least 2-3 years.",
+      "Promote air circulation via proper plant spacing and pruning.",
+      "Avoid overhead irrigation; use drip irrigation instead.",
+      "Sanitize tools, stakes, and equipment between plants or rows.",
+      "Remove and destroy infected plant debris post-harvest."
+    ],
+    "biological": [
+      "Application of bacteriophage-based products.",
+      "Preventative sprays of beneficial microbes like *Bacillus subtilis* strains."
+    ],
+    "chemical": [
+      "Preventative applications of fixed copper bactericides (e.g., copper hydroxide).",
+      "Tank-mixing copper with mancozeb to improve efficacy and manage resistance.",
+      "Use of plant activators like acibenzolar-S-methyl (ASM) to boost plant defenses before infection."
+    ],
+    "notes": "Chemical control is most effective when used preventatively. Copper resistance is widespread in many Xanthomonas populations, limiting its effectiveness."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/pepper/blight.json b/diseases_knowledge_base/pepper/blight.json
new file mode 100644
index 0000000000000000000000000000000000000000..7ffde210e84126387357c249c82ad0936fc25f4d
--- /dev/null
+++ b/diseases_knowledge_base/pepper/blight.json
@@ -0,0 +1,152 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "pepper.disease_fungal.blight",
+  "aliases": [
+    "Phytophthora blight",
+    "chile wilt",
+    "crown rot"
+  ],
+  "crop": {
+    "common_name": "pepper",
+    "scientific_name": "Capsicum annuum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "blight",
+    "scientific_name": "Phytophthora capsici",
+    "alt_names": [
+      "Phytophthora blight",
+      "Phytophthora root and crown rot"
+    ],
+    "pathogen": {
+      "type": "disease_oomycete",
+      "taxonomy": {
+        "kingdom": "Stramenopila",
+        "phylum": "Oomycota",
+        "class": "Oomycetes",
+        "order": "Peronosporales",
+        "family": "Peronosporaceae",
+        "genus": "Phytophthora",
+        "species": "capsici"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [
+      "fungus gnats",
+      "shore flies"
+    ],
+    "dispersal": [
+      "water splash (rain, irrigation)",
+      "contaminated soil",
+      "infected transplants",
+      "contaminated equipment"
+    ],
+    "overwintering": [
+      "as oospores in soil",
+      "in infested plant debris"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "poorly drained or heavy clay soils",
+      "standing water after heavy rain or irrigation",
+      "warm, humid weather",
+      "overhead irrigation"
+    ],
+    "temp_c_day": [
+      24,
+      29
+    ],
+    "temp_c_night": [
+      18,
+      24
+    ],
+    "relative_humidity_pct": [
+      80,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 6
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Localized lesions on a few leaves or a small, non-girdling stem canker. No wilting is present.",
+    "moderate": "Multiple stem cankers, significant leaf blight on several branches, or initial wilting on parts of the plant during the heat of the day.",
+    "severe": "Whole plant is permanently wilted, the main stem is girdled by a dark canker at the crown, and the plant is dead or dying.",
+    "notes": "Severity is based on the progression of systemic infection. Wilting is a key indicator of moderate to severe infection as it signals root and/or crown rot."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, dark green, water-soaked lesions that expand rapidly into large, irregular tan-to-brown patches.",
+      "Affected leaves appear blighted or scalded.",
+      "Leaves may drop, leading to defoliation."
+    ],
+    "stems": [
+      "Dark brown to black, water-soaked lesions, most commonly at the soil line (crown rot).",
+      "Stem lesions can girdle the stem, causing sudden wilting and collapse of the entire plant.",
+      "Cankers can also form on upper stems and branches, causing dieback above the lesion."
+    ],
+    "fruit": [
+      "Large, water-soaked lesions develop, which may be covered with a white, powdery or cottony mold (sporangia) in humid conditions.",
+      "Infected fruit shrivels, becomes mummified, and often remains attached to the plant."
+    ],
+    "roots": [
+      "Root system turns dark brown, becomes soft, and decays.",
+      "Destruction of the taproot and lateral roots leads to poor water and nutrient uptake."
+    ],
+    "whole_plant": [
+      "Sudden, permanent wilting of the entire plant, often without prior yellowing.",
+      "Stunted growth and rapid plant death, especially in wet, warm conditions."
+    ],
+    "signs_microscopic_or_visible": [
+      "White, cottony mycelial growth and powdery-looking sporangia on the surface of fruit or stem lesions during periods of high humidity."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "bacterial_spot",
+      "condition_id": "pepper.disease_bacterial.bacterial_spot",
+      "key_differences": [
+        "Bacterial spot lesions on leaves are small, angular, and often have a 'shot-hole' look, while blight lesions are large, irregular, and water-soaked.",
+        "Bacterial spot fruit lesions are raised, rough, and scabby, unlike the soft, moldy rot of blight.",
+        "Bacterial spot does not cause the dark, girdling stem cankers at the soil line or the sudden whole-plant wilting characteristic of Phytophthora blight."
+      ]
+    },
+    {
+      "condition_name": "anthracnose",
+      "condition_id": "pepper.disease_fungal.anthracnose",
+      "key_differences": [
+        "Anthracnose fruit lesions are distinctly sunken and circular, often with concentric rings and salmon-colored spore masses, whereas blight lesions are water-soaked and covered in white mold.",
+        "Anthracnose does not cause crown rot or sudden, total plant wilting.",
+        "While anthracnose can cause stem lesions, they are typically less aggressive and do not girdle the stem like Phytophthora blight."
+      ]
+    },
+    {
+      "condition_name": "root_rot",
+      "condition_id": "pepper.disease_fungal.root_rot",
+      "key_differences": [
+        "While other root rots (e.g., Pythium, Rhizoctonia) cause wilting, Phytophthora blight is distinguished by the prominent, dark brown to black canker at the soil line (crown rot).",
+        "Phytophthora blight also causes aggressive foliar and fruit blight symptoms, which are often absent or less severe with other common root rot pathogens.",
+        "Wilting from Phytophthora blight is often more rapid and complete due to the combination of root rot and stem girdling."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant in well-drained soil, using raised beds to improve drainage.",
+      "Practice careful water management; avoid overwatering and use drip irrigation instead of overhead.",
+      "Implement a crop rotation of at least 3 years with non-host crops (e.g., corn, beans).",
+      "Sanitize all tools, equipment, and stakes to prevent spread.",
+      "Promptly remove and destroy infected plants and surrounding soil."
+    ],
+    "biological": [
+      "Application of soil-drench bio-fungicides containing beneficial microbes like *Trichoderma* spp. or *Bacillus* spp. can help suppress the pathogen."
+    ],
+    "chemical": [
+      "Preventative applications of targeted oomycete-specific fungicides (e.g., mefenoxam, metalaxyl, phosphites) as a soil drench or foliar spray.",
+      "Fungicide resistance is a concern; rotate fungicide groups (FRAC codes)."
+    ],
+    "notes": "An integrated approach is essential. Management relies heavily on preventative cultural practices, as chemical treatments are largely ineffective once the plant is severely infected and wilting."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/pepper/fruit_rot.json b/diseases_knowledge_base/pepper/fruit_rot.json
new file mode 100644
index 0000000000000000000000000000000000000000..4cc6cddb78f48458a96da04007dd29ee84b160d8
--- /dev/null
+++ b/diseases_knowledge_base/pepper/fruit_rot.json
@@ -0,0 +1,149 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "pepper.unknown.fruit_rot",
+  "aliases": [
+    "pepper rot",
+    "pod rot",
+    "fruit decay"
+  ],
+  "crop": {
+    "common_name": "Pepper",
+    "scientific_name": "Capsicum annuum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "Fruit Rot",
+    "scientific_name": "Various",
+    "alt_names": [
+      "Pepper fruit decay"
+    ],
+    "pathogen": {
+      "type": "UNKNOWN",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [
+      "Insects (e.g., fruit flies, pepper weevils)"
+    ],
+    "dispersal": [
+      "Rain splash",
+      "Wind",
+      "Contaminated tools",
+      "Infected seed"
+    ],
+    "overwintering": [
+      "Infected plant debris",
+      "In soil as mycelia or resting spores",
+      "On perennial host weeds"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High humidity",
+      "Prolonged periods of fruit wetness",
+      "Poor air circulation within the plant canopy",
+      "Fruit injury from insects, sunscald, or mechanical damage",
+      "Calcium deficiency in soil (linked to blossom-end rot)"
+    ],
+    "temp_c_day": [
+      24,
+      32
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 6
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "One or a few small, superficial spots or lesions on a single fruit; less than 10% of the total fruit surface is affected.",
+    "moderate": "Multiple lesions or a single large lesion covering 10-40% of the fruit surface; some tissue collapse or softening is evident.",
+    "severe": "Extensive decay covering >40% of the fruit surface, often with secondary mold growth, complete fruit collapse, or mummification.",
+    "notes": "Severity is assessed on the most affected fruit on the plant. This rubric covers a range of causal agents for fruit rot."
+  },
+  "symptoms": {
+    "leaves": [
+      "May show spots or blight if the fruit rot is part of a larger disease syndrome.",
+      "General yellowing or wilting can occur if the plant is heavily stressed by the infection."
+    ],
+    "stems": [
+      "Stem cankers or lesions may be present, especially near the fruit peduncle (stalk)."
+    ],
+    "fruit": [
+      "Water-soaked, sunken lesions on the fruit surface.",
+      "Lesions may be tan, brown, black, or exhibit concentric rings.",
+      "Soft, watery decay of fruit tissue, often progressing rapidly.",
+      "Visible fuzzy or hairy mold growth (e.g., white, gray, black) on lesions under humid conditions.",
+      "Lesions frequently initiate at the blossom end, stem end, or at a wound site.",
+      "Affected fruit may shrivel, mummify, and remain attached to the plant.",
+      "Internal tissue and seeds may be discolored and rotten."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "General stunting or wilting if the underlying cause is a systemic pathogen like Phytophthora."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible mycelium (mold growth) on the fruit surface.",
+      "Presence of fruiting bodies (e.g., pycnidia, acervuli) as small black specks within lesions."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "anthracnose",
+      "condition_id": "pepper.fungal.anthracnose",
+      "key_differences": [
+        "Anthracnose lesions are distinctly circular and sunken with prominent concentric rings.",
+        "A key sign of anthracnose is the presence of salmon-pink to orange spore masses (acervuli) in the center of mature lesions.",
+        "General fruit rots can be more irregular in shape and may have white or gray mold instead of pink/orange spore masses."
+      ]
+    },
+    {
+      "condition_name": "bacterial_spot",
+      "condition_id": "pepper.bacterial.bacterial_spot",
+      "key_differences": [
+        "Bacterial spot on fruit causes small, raised, rough, or scabby lesions, not large sunken areas of soft rot.",
+        "Initial bacterial spots on fruit are water-soaked but become firm and wart-like, unlike the soft decay of most rots.",
+        "Bacterial spot is almost always accompanied by characteristic angular, necrotic spots on the leaves."
+      ]
+    },
+    {
+      "condition_name": "blight",
+      "condition_id": "pepper.oomycete.blight",
+      "key_differences": [
+        "Phytophthora blight causes large, dark, water-soaked lesions that are often covered in a coarse, white, cottony mold.",
+        "This disease also causes rapid wilting of the entire plant and distinctive dark, greasy lesions on the main stem, often at the soil line.",
+        "Fruit infected with Phytophthora blight shrivel into dry, lightweight 'mummies' that remain on the plant."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Rotate crops with non-solanaceous plants for at least 3 years.",
+      "Improve air circulation through adequate plant spacing and pruning.",
+      "Use mulch (e.g., straw or plastic) to create a barrier between the soil and fruit.",
+      "Use drip irrigation to keep foliage and fruit dry.",
+      "Remove and destroy infected fruit and plant debris immediately.",
+      "Ensure balanced soil fertility, particularly adequate calcium levels, to prevent blossom-end rot."
+    ],
+    "biological": [
+      "Application of bio-fungicides containing beneficial microbes like *Bacillus subtilis* or *Trichoderma* species can suppress some pathogens."
+    ],
+    "chemical": [
+      "Apply preventative, broad-spectrum fungicides (e.g., copper-based products, chlorothalonil, mancozeb) before disease onset, especially during periods of high humidity and rainfall.",
+      "Once a specific pathogen is identified, targeted fungicides may be more effective."
+    ],
+    "notes": "The most effective management strategy often combines multiple cultural practices. Chemical control is most effective when used preventatively."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/pepper/healthy.json b/diseases_knowledge_base/pepper/healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..0ae02a7cee47a78048db161f0ef166870de40963
--- /dev/null
+++ b/diseases_knowledge_base/pepper/healthy.json
@@ -0,0 +1,144 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "pepper.healthy.healthy",
+  "aliases": [
+    "normal pepper",
+    "unaffected pepper plant"
+  ],
+  "crop": {
+    "common_name": "pepper",
+    "scientific_name": "Capsicum annuum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "healthy",
+    "scientific_name": null,
+    "alt_names": [
+      "normal",
+      "unaffected"
+    ],
+    "pathogen": {
+      "type": "physiological",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "healthy",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Optimal growing conditions",
+      "Absence of pests and pathogens",
+      "Balanced nutrition",
+      "Adequate watering"
+    ],
+    "temp_c_day": [
+      21,
+      29
+    ],
+    "temp_c_night": [
+      16,
+      21
+    ],
+    "relative_humidity_pct": [
+      50,
+      70
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Not applicable",
+    "moderate": "Not applicable",
+    "severe": "Not applicable",
+    "notes": "Severity is not applicable for a healthy plant. The plant either meets the criteria for 'healthy' or it does not. Any deviation would be classified as a disorder, deficiency, or disease."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uniformly green color, appropriate for the cultivar.",
+      "Leaves are turgid, fully expanded, and well-formed.",
+      "No spots, lesions, yellowing (chlorosis), or browning (necrosis).",
+      "No curling, crinkling, or distortion of leaf margins.",
+      "Surfaces are smooth and free of powdery residue or sticky honeydew."
+    ],
+    "stems": [
+      "Stems are firm, upright, and green to slightly woody at the base.",
+      "No cankers, lesions, or dark streaks."
+    ],
+    "fruit": [
+      "Fruit has a uniform, vibrant color appropriate for the cultivar and stage of maturity.",
+      "Skin is smooth, firm, and unblemished.",
+      "No soft spots, sunken lesions, or signs of rot.",
+      "Calyx (cap) is green and fresh-looking."
+    ],
+    "roots": [
+      "Roots are white to cream-colored and fibrous (if visible)."
+    ],
+    "whole_plant": [
+      "Vigorous, upright growth habit.",
+      "Appears well-hydrated and robust.",
+      "Actively produces flowers and sets fruit according to its developmental stage."
+    ],
+    "signs_microscopic_or_visible": [
+      "No visible pests (e.g., aphids, mites, thrips).",
+      "No fungal growth (e.g., mycelium, spores)."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "bacterial_spot",
+      "condition_id": "pepper.bacterial.bacterial_spot",
+      "key_differences": [
+        "Healthy leaves are uniformly green; bacterial spot leaves have small, dark, water-soaked spots, often with a yellow halo.",
+        "Healthy leaf surfaces are smooth; bacterial spot lesions can feel slightly raised or scabby.",
+        "Healthy fruit is unblemished; bacterial spot causes small, raised, scabby spots on fruit."
+      ]
+    },
+    {
+      "condition_name": "mites",
+      "condition_id": "pepper.pest.mites",
+      "key_differences": [
+        "Healthy leaves have a normal green color; mite damage causes fine stippling (tiny yellow/white dots) and can lead to a bronzed appearance.",
+        "Healthy leaves are smooth; mite infestations may show fine webbing, especially on the underside of leaves.",
+        "Healthy leaves are flat and well-formed; heavy mite pressure can cause slight upward curling or distortion."
+      ]
+    },
+    {
+      "condition_name": "virus",
+      "condition_id": "pepper.viral.virus",
+      "key_differences": [
+        "Healthy leaves have a uniform green color; virus-infected leaves often show mosaic patterns or mottling (light/dark green patches).",
+        "Healthy leaves have a normal shape; viruses can cause severe distortion, crinkling, or a 'shoestring' appearance.",
+        "Healthy plants have vigorous growth; virus-infected plants are often stunted."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Provide consistent and appropriate watering to avoid stress.",
+      "Ensure well-drained soil and adequate plant spacing for air circulation.",
+      "Use balanced fertilizer according to soil tests and plant needs.",
+      "Rotate crops annually, avoiding other Solanaceae family members.",
+      "Practice good field sanitation, removing weeds and crop debris."
+    ],
+    "biological": [
+      "Use certified disease-free seeds and transplants.",
+      "Encourage beneficial insects by planting diverse companion flowers."
+    ],
+    "chemical": [
+      "Not applicable for maintaining health; chemical use is preventative or curative for specific problems."
+    ],
+    "notes": "Management for a healthy plant focuses on preventative care and providing optimal growing conditions to minimize stress and prevent disease onset."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/pepper/mites.json b/diseases_knowledge_base/pepper/mites.json
new file mode 100644
index 0000000000000000000000000000000000000000..e038ea6dd1137722b72a0ea9b12de8da5d2d30af
--- /dev/null
+++ b/diseases_knowledge_base/pepper/mites.json
@@ -0,0 +1,143 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "pepper.pest_mite.mites",
+  "aliases": [
+    "spider mites",
+    "broad mites",
+    "two-spotted spider mite"
+  ],
+  "crop": {
+    "common_name": "Pepper",
+    "scientific_name": "Capsicum annuum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "Mites",
+    "scientific_name": "Tetranychus urticae, Polyphagotarsonemus latus",
+    "alt_names": [
+      "Spider Mites",
+      "Broad Mites",
+      "Cyclamen Mites"
+    ],
+    "pathogen": {
+      "type": "Arthropod",
+      "taxonomy": {
+        "kingdom": "Animalia",
+        "phylum": "Arthropoda",
+        "class": "Arachnida",
+        "order": "Trombidiformes",
+        "family": "Tetranychidae",
+        "genus": "Tetranychus",
+        "species": "urticae"
+      }
+    }
+  },
+  "issue_type": "pest_mite",
+  "transmission": {
+    "vectors": [
+      "Wind",
+      "Humans (on clothing/equipment)",
+      "Infected transplants"
+    ],
+    "dispersal": [
+      "Wind currents",
+      "Crawling from plant to plant"
+    ],
+    "overwintering": [
+      "In crop debris",
+      "On perennial weeds",
+      "In greenhouse structures"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Hot, dry conditions",
+      "Dusty environments",
+      "Low humidity",
+      "Over-application of broad-spectrum insecticides"
+    ],
+    "temp_c_day": [
+      25,
+      35
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      0,
+      50
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Fine stippling on a few leaves; mites may be present but no visible webbing.",
+    "moderate": "Widespread stippling or bronzing on multiple leaves; some fine webbing may be visible on leaf undersides or at petiole junctions.",
+    "severe": "Leaves are heavily stippled, bronzed, or yellowed; extensive webbing covering leaves, stems, and growing points; visible mite colonies.",
+    "notes": "Severity is assessed by the combination of leaf stippling/bronzing intensity and the presence/extent of webbing. Leaf wetness is generally unfavorable for mites, so the threshold is not a primary risk driver."
+  },
+  "symptoms": {
+    "leaves": [
+      "Fine, pale yellow or white stippling on upper leaf surfaces.",
+      "Leaves appear dusty or dirty, especially on the underside.",
+      "Leaf undersides show a bronze or silvery sheen (characteristic of broad mites).",
+      "Leaves may become brittle, distorted, or curl downwards.",
+      "In severe cases, leaves turn yellow or brown and drop prematurely.",
+      "New growth is stunted, twisted, or malformed."
+    ],
+    "stems": [
+      "Fine webbing may be present between stems and leaves, especially at nodes."
+    ],
+    "fruit": [
+      "Fruit surfaces may become scarred, bronzed, or russeted.",
+      "Fruit may be deformed or smaller than normal."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Overall plant vigor is reduced.",
+      "Stunted growth."
+    ],
+    "signs_microscopic_or_visible": [
+      "Presence of tiny, moving specks (mites) on leaf undersides, best seen with a hand lens.",
+      "Fine, silk-like webbing on undersides of leaves and at leaf axils.",
+      "Presence of tiny spherical eggs on leaf undersides along veins."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Thrips",
+      "condition_id": "pepper.pest_insect.thrips",
+      "key_differences": [
+        "Thrips damage often appears as silvery patches or streaks, while mite damage is typically fine stippling.",
+        "Thrips leave tiny black specks of frass (excrement); mite infestations do not have these.",
+        "Webbing is a key sign of spider mites but is absent with thrips.",
+        "Thrips are small, elongated insects, whereas mites are tiny, round-bodied arachnids."
+      ]
+    },
+    {
+      "condition_name": "Virus",
+      "condition_id": "pepper.viral.virus",
+      "key_differences": [
+        "Mite damage often starts as stippling, while viral symptoms are more commonly mosaics, mottling, or distinct ring spots.",
+        "The presence of mites or webbing on the leaf underside confirms mite damage; these signs are absent in a primary viral infection.",
+        "Viral leaf distortion is often systematic (e.g., fernleaf), whereas mite-induced distortion is often accompanied by bronzing or stippling."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Maintain adequate irrigation and avoid water stress.",
+      "Use overhead watering or syringing to wash off mites and raise humidity.",
+      "Control dust on nearby roads or paths.",
+      "Remove and destroy heavily infested plants and nearby weeds."
+    ],
+    "biological": [
+      "Introduce and conserve predatory mites (e.g., Phytoseiulus persimilis, Neoseiulus californicus).",
+      "Encourage populations of other natural enemies like lacewings, lady beetles, and minute pirate bugs."
+    ],
+    "chemical": [
+      "Apply selective miticides (acaricides) ensuring thorough coverage of leaf undersides.",
+      "Rotate chemical classes to prevent resistance.",
+      "Horticultural oils and insecticidal soaps can be effective with direct contact and repeated application."
+    ],
+    "notes": "Early detection is crucial. Scout undersides of lower leaves regularly with a hand lens, especially during hot, dry weather."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/pepper/root_rot.json b/diseases_knowledge_base/pepper/root_rot.json
new file mode 100644
index 0000000000000000000000000000000000000000..da26922a8dd2aea8231277d999f494ee68c43f7a
--- /dev/null
+++ b/diseases_knowledge_base/pepper/root_rot.json
@@ -0,0 +1,150 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "pepper.unknown.root_rot",
+  "aliases": [
+    "damping-off",
+    "Phytophthora root rot",
+    "Pythium root rot",
+    "Fusarium crown and root rot"
+  ],
+  "crop": {
+    "common_name": "pepper",
+    "scientific_name": "Capsicum annuum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "root rot",
+    "scientific_name": null,
+    "alt_names": [
+      "damping-off",
+      "crown rot",
+      "water mold"
+    ],
+    "pathogen": {
+      "type": "fungal-like",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [
+      "fungus gnats",
+      "shore flies"
+    ],
+    "dispersal": [
+      "contaminated soil",
+      "splashing water",
+      "infected transplants",
+      "contaminated tools and equipment"
+    ],
+    "overwintering": [
+      "in soil as dormant spores (oospores, chlamydospores)",
+      "on infected plant debris"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "poorly drained or compacted soil",
+      "overwatering or excessive rainfall",
+      "low soil oxygen",
+      "high soil salinity",
+      "warm soil temperatures"
+    ],
+    "temp_c_day": [
+      24,
+      32
+    ],
+    "temp_c_night": [
+      20,
+      26
+    ],
+    "relative_humidity_pct": [
+      80,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Slight stunting or yellowing of lower leaves. Plant may wilt during the hottest part of the day but recovers at night.",
+    "moderate": "Noticeable stunting. Persistent wilting of lower and mid-canopy leaves. Some leaf drop may occur.",
+    "severe": "Plant is severely stunted or dead. Widespread, permanent wilting. Stem may be girdled at the soil line. Plant easily pulled from the ground.",
+    "notes": "Severity is assessed on the whole-plant level, focusing on the extent of wilting, stunting, and plant collapse. Root examination is required for definitive diagnosis."
+  },
+  "symptoms": {
+    "leaves": [
+      "Lower leaves turn yellow (chlorosis), then brown",
+      "Leaves wilt, starting from the bottom of the plant",
+      "Wilting occurs even when soil is moist",
+      "Premature leaf drop"
+    ],
+    "stems": [
+      "Dark, water-soaked lesion forms at the soil line",
+      "Stem becomes constricted, girdled, or 'wiry' at the base",
+      "Internal vascular tissue may show brown discoloration when cut"
+    ],
+    "fruit": [
+      "Fruit may be small, shriveled, or fail to develop"
+    ],
+    "roots": [
+      "Roots appear brown, soft, and water-soaked (mushy)",
+      "The outer layer (cortex) of the root sloughs off easily, leaving the inner core",
+      "Significant reduction in root mass"
+    ],
+    "whole_plant": [
+      "Stunted growth compared to healthy plants",
+      "Sudden wilting and rapid death of the plant",
+      "Seedlings collapse at the soil line (damping-off)"
+    ],
+    "signs_microscopic_or_visible": [
+      "White, cottony mold (mycelium) may be visible on the stem base or soil surface in highly saturated conditions"
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "blight",
+      "condition_id": "pepper.fungal-like.blight",
+      "key_differences": [
+        "Blight often causes large, dark lesions on leaves and upper stems, not just at the soil line.",
+        "Blight can directly infect and cause large, sunken, rotten spots on the fruit itself.",
+        "With root rot, the primary symptom is bottom-up wilting due to root decay; blight can cause rapid collapse from infections anywhere on the plant.",
+        "In early blight infection, the root system may appear healthy, whereas it is the first part affected by root rot."
+      ]
+    },
+    {
+      "condition_name": "virus",
+      "condition_id": "pepper.viral.virus",
+      "key_differences": [
+        "Virus symptoms frequently include mosaic patterns, mottling, leaf distortion, or distinct ring spots, which are absent in root rot.",
+        "Wilting from a virus (e.g., TSWV) can be one-sided (unilateral) or accompanied by necrotic stem streaks, but the roots are not soft and decayed.",
+        "Root rot does not cause the malformed, curled, or stunted new growth characteristic of many viral infections."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Ensure good soil drainage; use raised beds in heavy soils",
+      "Avoid overwatering and allow soil surface to dry between irrigations",
+      "Rotate crops with non-susceptible families (e.g., grasses, legumes)",
+      "Use certified disease-free transplants and seeds",
+      "Sanitize all tools, containers, and greenhouse surfaces between plantings"
+    ],
+    "biological": [
+      "Incorporate high-quality compost to improve soil structure and promote beneficial microbes",
+      "Apply commercially available bio-fungicides containing *Trichoderma* or *Bacillus subtilis* to the soil"
+    ],
+    "chemical": [
+      "Apply preventative fungicides (e.g., mefenoxam, propamocarb, phosphites) as a soil drench at planting or transplanting",
+      "Consider pre-plant soil fumigation in fields with a history of severe disease pressure"
+    ],
+    "notes": "Preventative measures, especially water management and soil health, are key. Chemical treatments are most effective when applied before symptoms appear and are often not curative on severely infected plants."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/pepper/spot.json b/diseases_knowledge_base/pepper/spot.json
new file mode 100644
index 0000000000000000000000000000000000000000..ca7039c10ffecd7df6485169a0f830e15294514f
--- /dev/null
+++ b/diseases_knowledge_base/pepper/spot.json
@@ -0,0 +1,138 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "pepper.disease_fungal.spot",
+  "aliases": [
+    "Cercospora leaf spot",
+    "Frogeye spot"
+  ],
+  "crop": {
+    "common_name": "Pepper",
+    "scientific_name": "Capsicum annuum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "Fungal Spot",
+    "scientific_name": "Cercospora capsici",
+    "alt_names": [
+      "Cercospora leaf spot"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Capnodiales",
+        "family": "Mycosphaerellaceae",
+        "genus": "Cercospora",
+        "species": "capsici"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "Wind",
+      "Rain splash",
+      "Contaminated tools",
+      "Infected seed"
+    ],
+    "overwintering": [
+      "Infected crop debris",
+      "On seed",
+      "In soil"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High humidity",
+      "Poor air circulation",
+      "Overhead irrigation",
+      "Warm temperatures",
+      "Prolonged leaf wetness"
+    ],
+    "temp_c_day": [
+      23,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      95
+    ],
+    "leaf_wetness_hours_threshold": 10
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "< 5% of leaf area affected with spots. Little to no yellowing.",
+    "moderate": "5-25% of leaf area affected, some associated yellowing (chlorosis) may be present.",
+    "severe": "> 25% of leaf area affected, significant chlorosis, and premature leaf drop (defoliation) is occurring.",
+    "notes": "Severity is assessed on the most affected leaves. Defoliation is a key indicator of severe infection."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial symptoms are small, water-soaked spots on lower leaves.",
+      "Spots enlarge to circular lesions, 3-10 mm in diameter.",
+      "Mature lesions develop a distinct light gray, tan, or white center.",
+      "A dark brown to black border surrounds the pale center, creating a 'frogeye' appearance.",
+      "Lesion centers may become brittle and fall out, creating a 'shot-hole' effect.",
+      "A yellow halo (chlorosis) may develop around individual spots.",
+      "Infected leaves turn yellow, wither, and drop prematurely, starting from the bottom of the plant."
+    ],
+    "stems": [
+      "Elongated, oval-shaped lesions with pale centers and dark borders may appear on stems and petioles."
+    ],
+    "fruit": [
+      "Fruit infection is rare, but small, sunken, dark spots can occur, particularly on the calyx (stem cap)."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Significant defoliation of lower and mid-canopy leaves.",
+      "Reduced plant vigor and stunted growth.",
+      "Sunscald on fruit exposed to direct sun due to loss of protective leaf cover."
+    ],
+    "signs_microscopic_or_visible": [
+      "Under high humidity, fuzzy, dark sporulation (conidiophores) may be visible in the center of lesions, often requiring a hand lens."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Bacterial Spot",
+      "condition_id": "pepper.disease_bacterial.bacterial_spot",
+      "key_differences": [
+        "Bacterial spots are often angular and limited by leaf veins, whereas fungal spots are typically circular.",
+        "Bacterial spots look dark and water-soaked or 'greasy', lacking the distinct pale 'frogeye' center of Cercospora.",
+        "Bacterial spots do not typically have a 'shot-hole' appearance where the center drops out.",
+        "Bacterial spots on fruit are common, appearing as raised, scabby, or wart-like lesions."
+      ]
+    },
+    {
+      "condition_name": "Anthracnose",
+      "condition_id": "pepper.disease_fungal.anthracnose",
+      "key_differences": [
+        "Anthracnose primarily affects fruit, causing large, circular, sunken lesions that are much larger than leaf spots.",
+        "Anthracnose lesions on fruit often have visible concentric rings and develop salmon-pink to orange spore masses in the center.",
+        "Leaf spots from anthracnose are less common and are typically small, brown, and less defined than Cercospora's 'frogeye' spots."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified disease-free seed and transplants.",
+      "Practice crop rotation with non-solanaceous crops for at least 3 years.",
+      "Improve air circulation through proper plant spacing and pruning.",
+      "Avoid overhead irrigation to minimize leaf wetness; use drip irrigation.",
+      "Remove and destroy infected plant debris at the end of the season.",
+      "Apply mulch to create a barrier between the soil and lower leaves."
+    ],
+    "biological": [
+      "Application of bio-fungicides containing strains of *Bacillus subtilis* or *Trichoderma* can suppress disease development."
+    ],
+    "chemical": [
+      "Apply preventative fungicides containing copper, mancozeb, or chlorothalonil.",
+      "For curative action, use systemic fungicides (e.g., strobilurins, triazoles), rotating chemical groups to prevent resistance."
+    ],
+    "notes": "Fungicide applications are most effective when started preventatively, before symptoms are widespread, especially when weather forecasts predict favorable conditions for disease."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/pepper/thrips.json b/diseases_knowledge_base/pepper/thrips.json
new file mode 100644
index 0000000000000000000000000000000000000000..7a3befdf0425bd9b2075b7a1d526578e95480ba4
--- /dev/null
+++ b/diseases_knowledge_base/pepper/thrips.json
@@ -0,0 +1,150 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "pepper.pest_insect.thrips",
+  "aliases": [
+    "Thrips feeding injury",
+    "Thrips damage on pepper"
+  ],
+  "crop": {
+    "common_name": "Pepper",
+    "scientific_name": "Capsicum annuum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "Thrips",
+    "scientific_name": "Frankliniella occidentalis, Thrips tabaci, et al.",
+    "alt_names": [
+      "Western flower thrips",
+      "Onion thrips",
+      "Chilli thrips"
+    ],
+    "pathogen": {
+      "type": "insect",
+      "taxonomy": {
+        "kingdom": "Animalia",
+        "phylum": "Arthropoda",
+        "class": "Insecta",
+        "order": "Thysanoptera",
+        "family": "Thripidae",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "pest_insect",
+  "transmission": {
+    "vectors": [
+      "Thrips can vector tospoviruses (e.g., Tomato spotted wilt virus, Impatiens necrotic spot virus)."
+    ],
+    "dispersal": [
+      "Wind currents",
+      "Movement of infested plants or soil",
+      "Adult flight between plants"
+    ],
+    "overwintering": [
+      "As pupae in soil or leaf litter",
+      "As adults on weed hosts or in crop debris",
+      "In protected environments like greenhouses"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Hot, dry weather conditions",
+      "Presence of alternative weed hosts (e.g., pigweed, nightshade)",
+      "High nitrogen fertilization leading to succulent growth",
+      "Unscreened vents in greenhouses"
+    ],
+    "temp_c_day": [
+      25,
+      32
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      40,
+      60
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf surface shows stippling or a silvery sheen. A few thrips may be visible upon close inspection.",
+    "moderate": "11-40% of leaf surface affected. Obvious silvery patches and black frass specks are present. Leaf distortion may be visible on new growth.",
+    "severe": ">40% of leaf surface affected. Widespread silvering, stunting of new growth, leaf curling, and visible scarring on fruit.",
+    "notes": "Severity measures the visual impact of feeding damage (stippling, silvering) on leaves and fruit. It does not directly count the number of thrips, which can be difficult to assess from a typical image."
+  },
+  "symptoms": {
+    "leaves": [
+      "Fine, whitish or silvery stippling on the leaf surface where cells have been punctured.",
+      "Affected leaves develop a distinct silvery or bronze sheen.",
+      "Small, black, varnish-like specks (frass or excrement) are visible on damaged areas.",
+      "New leaves may appear distorted, cupped, or curled upwards.",
+      "In severe cases, leaves can become brittle, wilt, and drop prematurely."
+    ],
+    "stems": [
+      "Feeding on young stems and growing points can cause stunting."
+    ],
+    "fruit": [
+      "Silvery or tan-colored scars, often in a circular 'halo' pattern around the calyx (stem end).",
+      "Surface bronzing or development of a corky, rough texture on the fruit skin.",
+      "Deformation or stunting of young, developing fruit."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Stunted overall growth and reduced plant vigor.",
+      "Flower drop and reduced fruit set in heavy infestations."
+    ],
+    "signs_microscopic_or_visible": [
+      "Tiny, slender insects (1-2 mm long), pale yellow to dark brown, are visible on leaf undersides or in flowers.",
+      "Larvae are smaller, often yellowish or whitish, and wingless."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Mites",
+      "condition_id": "pepper.pest_arachnid.mites",
+      "key_differences": [
+        "Mite damage often includes fine, silky webbing, which is absent with thrips.",
+        "Mite stippling is typically finer and more yellow/bronze, while thrips damage is often more silvery.",
+        "Mites are tiny, dot-like arachnids (8 legs), whereas adult thrips are slender insects (6 legs).",
+        "Thrips leave characteristic black frass specks; mites do not."
+      ]
+    },
+    {
+      "condition_name": "Virus",
+      "condition_id": "pepper.disease_viral.virus",
+      "key_differences": [
+        "Viral symptoms often form systemic mosaic, mottled, or ring spot patterns, unlike the surface-level feeding damage of thrips.",
+        "Thrips damage includes visible black frass specks and often the insects themselves; these signs are absent in a primary viral infection.",
+        "Virus-induced leaf curling is often more uniform and severe than the localized distortion from thrips feeding on new growth."
+      ]
+    },
+    {
+      "condition_name": "Bacterial Spot",
+      "condition_id": "pepper.disease_bacterial.bacterial_spot",
+      "key_differences": [
+        "Bacterial spots are discrete, often water-soaked lesions that turn dark, unlike the diffuse stippling or silvering from thrips.",
+        "Bacterial spots on fruit are typically raised, scabby, or cracked, while thrips scarring is smoother or has a corky texture.",
+        "Bacterial leaf spots may have a yellow halo and the centers can fall out, creating a 'shot-hole' effect not seen with thrips."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use reflective mulches (e.g., silver plastic) to disorient and deter thrips.",
+      "Remove and destroy weed hosts in and around the growing area.",
+      "Avoid over-fertilizing with nitrogen, which promotes succulent growth favored by thrips.",
+      "Install fine-mesh screening on greenhouse vents and doorways."
+    ],
+    "biological": [
+      "Release of predatory mites (e.g., Amblyseius swirskii, Neoseiulus cucumeris).",
+      "Introduction of minute pirate bugs (Orius spp.) or green lacewing larvae.",
+      "Application of entomopathogenic fungi like Beauveria bassiana or Isaria fumosorosea."
+    ],
+    "chemical": [
+      "Application of insecticidal soaps or horticultural oils for suppression, ensuring thorough coverage.",
+      "Use of targeted insecticides such as spinosad or acetamiprid.",
+      "Rotate chemical classes (modes of action) to prevent or delay insecticide resistance."
+    ],
+    "notes": "Integrated Pest Management (IPM) is crucial. Monitor populations using blue or yellow sticky cards to detect adults and guide treatment timing."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/pepper/virus.json b/diseases_knowledge_base/pepper/virus.json
new file mode 100644
index 0000000000000000000000000000000000000000..67c739656e8ccc02c2081546f5e23ee6cf80f17c
--- /dev/null
+++ b/diseases_knowledge_base/pepper/virus.json
@@ -0,0 +1,155 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "pepper.disease_viral.virus",
+  "aliases": [
+    "Pepper mosaic",
+    "Pepper mottle",
+    "CMV on pepper",
+    "TSWV on pepper"
+  ],
+  "crop": {
+    "common_name": "Pepper",
+    "scientific_name": "Capsicum annuum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "Virus",
+    "scientific_name": "e.g., Pepper mottle virus (PepMoV), Cucumber mosaic virus (CMV), Tomato spotted wilt virus (TSWV)",
+    "alt_names": [
+      "Mosaic",
+      "Mottle",
+      "Spotted Wilt"
+    ],
+    "pathogen": {
+      "type": "Virus",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "disease_viral",
+  "transmission": {
+    "vectors": [
+      "Aphids",
+      "Thrips"
+    ],
+    "dispersal": [
+      "Insect vectors",
+      "Mechanical (tools, hands)",
+      "Infected seeds",
+      "Infected transplants"
+    ],
+    "overwintering": [
+      "Infected perennial weeds",
+      "Infected crop debris",
+      "In insect vectors"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High populations of insect vectors (aphids, thrips)",
+      "Proximity to infected weeds or other susceptible crops",
+      "Use of non-certified seed or transplants",
+      "Warm temperatures favoring vector activity and virus replication"
+    ],
+    "temp_c_day": [
+      20,
+      30
+    ],
+    "temp_c_night": [
+      15,
+      25
+    ],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Faint mottling or mosaic on a few young leaves; no visible stunting or fruit symptoms.",
+    "moderate": "Obvious mosaic, leaf distortion, or ringspots on multiple leaves; plant may be slightly stunted.",
+    "severe": "Severe mosaic, leaf malformation, necrosis, and significant plant stunting; fruit is distorted, discolored, or has ringspots.",
+    "notes": "Severity is a whole-plant assessment combining foliar symptoms, stunting, and fruit abnormalities. Symptoms can vary greatly depending on the specific virus, pepper variety, and environmental conditions. Leaf wetness is not a primary driver for viral diseases."
+  },
+  "symptoms": {
+    "leaves": [
+      "Light and dark green mosaic or mottled patterns, especially on young leaves.",
+      "Leaf curling, puckering, blistering, or other malformations.",
+      "Yellow or necrotic ringspots or line patterns ('oak-leaf').",
+      "Vein clearing (veins appear translucent) or vein banding (dark green tissue along veins).",
+      "Narrowing of leaves, sometimes called 'fernleaf' symptom."
+    ],
+    "stems": [
+      "Dark, necrotic streaks, particularly with TSWV.",
+      "Shortened internodes leading to a bushy or stunted appearance."
+    ],
+    "fruit": [
+      "Malformed, bumpy, or distorted shape.",
+      "Concentric, colored ringspots (e.g., yellow, red, or green rings on ripe fruit).",
+      "Uneven ripening or color breaking (blotchy patches of color).",
+      "Reduced fruit size and number."
+    ],
+    "roots": [
+      "Root system is often underdeveloped as a secondary effect of overall plant stunting."
+    ],
+    "whole_plant": [
+      "General stunting, yellowing, or dwarfing of the entire plant."
+    ],
+    "signs_microscopic_or_visible": [
+      "No visible signs of the pathogen itself. Diagnosis is based on symptoms or lab testing."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "bacterial_spot",
+      "condition_id": "pepper.disease_bacterial.bacterial_spot",
+      "key_differences": [
+        "Bacterial spot causes distinct, small, water-soaked lesions that turn dark and necrotic, unlike the systemic patterns of a virus.",
+        "Bacterial lesions may have a 'shot-hole' appearance as centers fall out; viruses do not cause this.",
+        "Virus symptoms are often patterns like mosaics or mottling, not discrete, localized spots.",
+        "Bacterial spot can also appear as raised, scabby spots on fruit, different from viral ringspots or color breaking."
+      ]
+    },
+    {
+      "condition_name": "thrips",
+      "condition_id": "pepper.pest.thrips",
+      "key_differences": [
+        "Thrips feeding creates a silvery or whitish stippling on leaves, not a true green mosaic pattern.",
+        "Tiny black specks of frass (excrement) are often visible on the underside of leaves with thrips damage.",
+        "The insects themselves (very small, slender) may be found on the plant, especially in flowers or on new growth.",
+        "While thrips can cause leaf distortion, it's often accompanied by the characteristic silvery scarring."
+      ]
+    },
+    {
+      "condition_name": "mites",
+      "condition_id": "pepper.pest.mites",
+      "key_differences": [
+        "Mite damage causes fine, uniform stippling, bronzing, or a dusty appearance on leaves.",
+        "Fine webbing may be present on leaf undersides or between stems with spider mite infestations.",
+        "Leaf distortion from mites is typically upward curling and brittleness, rather than the mosaic or fernleaf symptoms of viruses."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant certified virus-free seed and transplants.",
+      "Control insect vectors (aphids, thrips) using reflective mulches, row covers, or scouting.",
+      "Remove and destroy infected plants immediately to reduce spread.",
+      "Maintain a weed-free area around the crop, as many weeds are alternate hosts for viruses and vectors.",
+      "Practice good sanitation by cleaning tools and washing hands after handling infected plants."
+    ],
+    "biological": [
+      "Encourage natural predators of aphids and thrips, such as lacewings, lady beetles, and predatory mites."
+    ],
+    "chemical": [
+      "Apply appropriate insecticides to manage vector populations, but note this may not be fast enough to prevent initial infection.",
+      "There are no effective chemical treatments (virucides) to cure infected plants."
+    ],
+    "notes": "Management is entirely preventive. Once a plant is infected, it cannot be cured and acts as a source of inoculum for other plants."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/potato/early_blight.json b/diseases_knowledge_base/potato/early_blight.json
new file mode 100644
index 0000000000000000000000000000000000000000..cef1fcd612eb38fb06afe30cd22d27f75f9d6991
--- /dev/null
+++ b/diseases_knowledge_base/potato/early_blight.json
@@ -0,0 +1,140 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "potato.disease_fungal.early_blight",
+  "aliases": [
+    "target spot",
+    "alternaria blight"
+  ],
+  "crop": {
+    "common_name": "potato",
+    "scientific_name": "Solanum tuberosum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "early blight",
+    "scientific_name": "Alternaria solani",
+    "alt_names": [
+      "target spot"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Pleosporales",
+        "family": "Pleosporaceae",
+        "genus": "Alternaria",
+        "species": "solani"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "wind",
+      "rain splash",
+      "irrigation water",
+      "infected equipment"
+    ],
+    "overwintering": [
+      "infected plant debris",
+      "soil",
+      "infected tubers",
+      "solanaceous weeds"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high humidity",
+      "frequent rainfall or overhead irrigation",
+      "plant stress (e.g., nutrient deficiency, insect damage)",
+      "older, senescing leaves"
+    ],
+    "temp_c_day": [
+      24,
+      29
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      90,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 9
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "< 5% of total foliage area affected by lesions.",
+    "moderate": "5-25% of total foliage area affected, some leaf yellowing and minor defoliation.",
+    "severe": "> 25% of total foliage area affected, significant defoliation, stem lesions present, reduced plant vigor.",
+    "notes": "Severity is assessed by estimating the percentage of the total plant canopy showing symptoms, not just a single leaf. This metric is practical for image labeling and is used in disease forecasting."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, dark brown to black spots, initially on lower, older leaves.",
+      "Lesions enlarge into circular or irregular shapes, often up to 1.5 cm in diameter.",
+      "Classic 'target spot' or 'bull's-eye' pattern with concentric rings within the lesion.",
+      "A distinct yellow halo often surrounds the dark lesion.",
+      "Lesions can merge, causing large blighted areas.",
+      "Affected leaves turn yellow, wither, and eventually die, but often remain attached to the plant."
+    ],
+    "stems": [
+      "Dark, sunken, and elongated lesions can form on stems, sometimes with concentric rings.",
+      "Stem lesions can girdle the plant, especially near the soil line (collar rot on seedlings)."
+    ],
+    "fruit": [
+      "Tubers develop dark, circular to irregular, slightly sunken lesions on the surface.",
+      "The underlying tuber flesh is dry, leathery, or corky and brownish in color.",
+      "Tuber lesions are usually sharply defined from healthy tissue."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Premature defoliation, starting from the bottom of the plant and moving upwards.",
+      "Reduced plant vigor and overall stunting in severe cases."
+    ],
+    "signs_microscopic_or_visible": [
+      "In humid conditions, a velvety, dark brown or black sporulation may be visible on the surface of lesions with a hand lens."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "late blight",
+      "condition_id": "potato.disease_fungal.late_blight",
+      "key_differences": [
+        "Late blight lesions are water-soaked and irregular with fuzzy white mold on the leaf underside; early blight lesions are dry with distinct concentric rings.",
+        "Early blight lesions have a sharp, defined border and a yellow halo; late blight lesions have an indistinct, pale green border.",
+        "Early blight prefers warmer temperatures and affects lower leaves first; late blight thrives in cool, moist conditions and can appear anywhere on the plant.",
+        "Late blight causes a rapid, wet rot of the entire plant; early blight progresses more slowly, causing gradual defoliation."
+      ]
+    },
+    {
+      "condition_name": "healthy",
+      "condition_id": "potato.healthy",
+      "key_differences": [
+        "Healthy leaves are uniformly green without any spots, lesions, or yellowing halos.",
+        "Healthy stems are green and turgid, lacking any dark, sunken, or elongated lesions.",
+        "Healthy plants exhibit a full, vigorous canopy appropriate for their developmental stage."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified disease-free seed tubers.",
+      "Practice crop rotation with non-solanaceous crops for at least 2-3 years.",
+      "Maintain adequate plant nutrition to reduce stress.",
+      "Promote good air circulation through proper plant spacing and weed control.",
+      "Remove and destroy infected plant debris after harvest.",
+      "Avoid overhead irrigation or time it to allow foliage to dry quickly."
+    ],
+    "biological": [
+      "Application of bio-fungicides containing *Bacillus subtilis* can suppress pathogen growth."
+    ],
+    "chemical": [
+      "Apply preventative fungicides before disease onset, especially when weather is favorable.",
+      "Use curative fungicides with different modes of action (e.g., chlorothalonil, mancozeb, azoxystrobin, pyraclostrobin) to manage disease and prevent resistance.",
+      "Follow local extension recommendations for timing and product selection."
+    ],
+    "notes": "An integrated pest management (IPM) approach is most effective, combining cultural practices, resistant varieties (if available), and judicious fungicide use based on disease forecasting models."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/potato/healthy.json b/diseases_knowledge_base/potato/healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..096e44be870793fe23e7f8e96b2d486001f2ef9a
--- /dev/null
+++ b/diseases_knowledge_base/potato/healthy.json
@@ -0,0 +1,121 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "potato.healthy.healthy",
+  "aliases": [
+    "normal potato",
+    "unaffected potato",
+    "disease-free potato"
+  ],
+  "crop": {
+    "common_name": "potato",
+    "scientific_name": "Solanum tuberosum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "healthy",
+    "scientific_name": "",
+    "alt_names": [
+      "normal",
+      "unaffected"
+    ],
+    "pathogen": {
+      "type": "none",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "healthy",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Optimal growing conditions: adequate sunlight, well-drained soil, and consistent moisture."
+    ],
+    "temp_c_day": [
+      18,
+      24
+    ],
+    "temp_c_night": [
+      12,
+      15
+    ],
+    "relative_humidity_pct": [
+      70,
+      90
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Not applicable. Plant is healthy.",
+    "moderate": "Not applicable. Plant is healthy.",
+    "severe": "Not applicable. Plant is healthy.",
+    "notes": "This is a binary classification; the plant is either healthy or it is not. Severity metrics apply to disease or disorder conditions."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uniformly green color, which may vary from light to dark green depending on the cultivar.",
+      "Leaves are fully expanded, turgid, and appropriately sized for the growth stage.",
+      "No spots, lesions, discoloration, or necrosis.",
+      "Leaf margins are smooth and intact, without curling, crinkling, or distortion.",
+      "No yellow halos or water-soaked areas are present."
+    ],
+    "stems": [
+      "Stems are sturdy, upright, and green.",
+      "No cankers, lesions, streaks, or wilting is visible.",
+      "Internodes are of a normal length for the cultivar."
+    ],
+    "fruit": [],
+    "roots": [],
+    "whole_plant": [
+      "Exhibits vigorous, upright growth.",
+      "Canopy is dense and full, consistent with the plant's age and variety.",
+      "No general stunting, wilting, or dieback is observed."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Early Blight",
+      "condition_id": "potato.fungal.early_blight",
+      "key_differences": [
+        "Healthy leaves are uniformly green, whereas early blight causes dark brown to black lesions, often with a 'target spot' or concentric ring pattern.",
+        "Early blight lesions are typically surrounded by a distinct yellow halo, which is absent on healthy leaves.",
+        "Healthy leaves are intact, while leaves with early blight become brittle, and severe infections cause lower leaves to senesce and drop prematurely."
+      ]
+    },
+    {
+      "condition_name": "Late Blight",
+      "condition_id": "potato.oomycete.late_blight",
+      "key_differences": [
+        "Healthy leaves are dry and uniformly colored; late blight lesions are large, dark green to black, and often have a water-soaked or greasy appearance.",
+        "The underside of healthy leaves is clean, whereas late blight lesions may show a fuzzy, white mold (sporangia) at the lesion margin in humid conditions.",
+        "Healthy stems are firm and green; late blight can cause large, dark brown or black lesions on stems that can girdle and kill them.",
+        "Healthy plants do not have a distinct odor, while fields with severe late blight can have a noticeable decaying vegetation smell."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant certified seed potatoes to ensure a disease-free start.",
+      "Practice crop rotation with non-solanaceous crops (e.g., grains, legumes) for 2-3 years.",
+      "Ensure proper plant spacing to promote air circulation and rapid drying of foliage.",
+      "Manage irrigation to avoid prolonged leaf wetness, preferably using drip irrigation or watering early in the day."
+    ],
+    "biological": [],
+    "chemical": [
+      "Use preventative fungicide applications only when disease risk is high based on weather forecasting and scouting, not as a routine practice for healthy plants."
+    ],
+    "notes": "Management for a healthy crop focuses on maintaining optimal growing conditions and preventing the introduction and spread of pathogens."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/potato/late_blight.json b/diseases_knowledge_base/potato/late_blight.json
new file mode 100644
index 0000000000000000000000000000000000000000..14a750d6f059e7c0b1a714cf95a23612690850ab
--- /dev/null
+++ b/diseases_knowledge_base/potato/late_blight.json
@@ -0,0 +1,138 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "potato.disease_fungal.late_blight",
+  "aliases": [
+    "potato blight",
+    "Irish potato famine disease"
+  ],
+  "crop": {
+    "common_name": "potato",
+    "scientific_name": "Solanum tuberosum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "late blight",
+    "scientific_name": "Phytophthora infestans",
+    "alt_names": [
+      "potato blight"
+    ],
+    "pathogen": {
+      "type": "disease_oomycete",
+      "taxonomy": {
+        "kingdom": "Stramenopila",
+        "phylum": "Oomycota",
+        "class": "Oomycetes",
+        "order": "Peronosporales",
+        "family": "Peronosporaceae",
+        "genus": "Phytophthora",
+        "species": "P. infestans"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "wind",
+      "rain splash",
+      "irrigation water",
+      "contaminated equipment"
+    ],
+    "overwintering": [
+      "infected seed tubers",
+      "cull piles",
+      "volunteer plants"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High humidity",
+      "Cool temperatures",
+      "Prolonged leaf wetness",
+      "Dense canopy"
+    ],
+    "temp_c_day": [
+      15,
+      21
+    ],
+    "temp_c_night": [
+      10,
+      15
+    ],
+    "relative_humidity_pct": [
+      90,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 10
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area affected; a few scattered lesions.",
+    "moderate": "11-40% of leaf area affected; multiple lesions coalescing, some stem lesions may be present.",
+    "severe": ">40% of leaf area affected; extensive blighting, defoliation, and stem collapse.",
+    "notes": "Severity is assessed on the total foliar area of the plant. Stem and tuber infection should be noted separately but contribute to the overall plant health decline."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, water-soaked, pale green to dark green spots, often near leaf tips or edges.",
+      "Lesions rapidly enlarge into large, irregular, brownish-black necrotic areas.",
+      "A pale green or yellowish halo often surrounds the necrotic lesion.",
+      "Infected leaves quickly wither, curl, and die but often remain attached to the stem."
+    ],
+    "stems": [
+      "Large, dark brown to black, greasy-appearing lesions can form on stems and petioles.",
+      "Stems can become brittle and break at the site of infection."
+    ],
+    "fruit": [],
+    "roots": [
+      "On tubers, symptoms appear as firm, reddish-brown, dry rot that penetrates the surface.",
+      "The rot extends irregularly into the tuber flesh, often with a granular texture.",
+      "The skin over infected areas may appear sunken and purplish."
+    ],
+    "whole_plant": [
+      "Rapid blighting and collapse of foliage, especially in cool, wet weather.",
+      "A distinct, musty odor is often present in severely infected fields."
+    ],
+    "signs_microscopic_or_visible": [
+      "Under humid conditions, a fuzzy, white mold (sporangia) appears on the underside of leaves at the lesion margin."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "early blight",
+      "condition_id": "potato.disease_fungal.early_blight",
+      "key_differences": [
+        "Early blight lesions are circular with distinct, dark concentric rings ('target spots'), whereas late blight lesions are irregular and initially water-soaked.",
+        "Late blight produces a white, fuzzy mold on the underside of leaves in high humidity; early blight does not.",
+        "Early blight lesions are typically dry and leathery, while late blight lesions are blighted and can appear greasy or wet.",
+        "Early blight often starts on lower, older leaves, while late blight can start anywhere on the plant."
+      ]
+    },
+    {
+      "condition_name": "healthy",
+      "condition_id": "potato.healthy",
+      "key_differences": [
+        "Healthy leaves are uniformly green and turgid, without any necrotic spots, water-soaking, or halos.",
+        "Healthy stems are green and strong, lacking any dark brown or black lesions.",
+        "No white, fuzzy mold is present on any part of a healthy plant."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified disease-free seed tubers.",
+      "Destroy cull piles and volunteer potatoes.",
+      "Promote good air circulation through proper plant spacing.",
+      "Avoid overhead irrigation, or irrigate early in the day to allow foliage to dry."
+    ],
+    "biological": [
+      "Application of bio-fungicides containing *Bacillus subtilis* or *Trichoderma* species can have some suppressive effect when used preventatively."
+    ],
+    "chemical": [
+      "Prophylactic and curative fungicide applications are the primary control method.",
+      "Use forecasting models (e.g., Blitecast) to time applications effectively.",
+      "Rotate fungicide modes of action to prevent resistance development."
+    ],
+    "notes": "Management relies heavily on preventative fungicide sprays, timed according to weather-based disease prediction models. Resistant cultivars are a key component of an integrated management strategy."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/raspberry/healthy.json b/diseases_knowledge_base/raspberry/healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..3e039cca1b089df14bbedb7f30b9364f9ebb5449
--- /dev/null
+++ b/diseases_knowledge_base/raspberry/healthy.json
@@ -0,0 +1,115 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "raspberry.healthy.healthy",
+  "aliases": [
+    "normal",
+    "asymptomatic"
+  ],
+  "crop": {
+    "common_name": "raspberry",
+    "scientific_name": "Rubus idaeus",
+    "family": "Rosaceae"
+  },
+  "condition": {
+    "common_name": "healthy",
+    "scientific_name": "",
+    "alt_names": [
+      "normal",
+      "asymptomatic",
+      "no disease"
+    ],
+    "pathogen": {
+      "type": "none",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "healthy",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Optimal growing conditions",
+      "Sufficient sunlight (6-8 hours/day)",
+      "Well-drained, fertile soil with pH 6.0-6.8",
+      "Adequate and consistent moisture"
+    ],
+    "temp_c_day": [
+      18,
+      25
+    ],
+    "temp_c_night": [
+      10,
+      16
+    ],
+    "relative_humidity_pct": [
+      60,
+      80
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Plant is vigorous with no visible signs of stress or disease on any plant part.",
+    "moderate": "N/A",
+    "severe": "N/A",
+    "notes": "Severity is not applicable to a healthy plant. The 'mild' category represents the baseline healthy state, characterized by the complete absence of symptoms."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uniformly green color, appropriate for the cultivar.",
+      "Leaves are fully expanded, turgid, and appropriately sized.",
+      "Leaf margins are intact with characteristic serrations and no necrosis.",
+      "Surfaces are free of spots, lesions, pustules, yellowing, or distortion.",
+      "Petioles are firm, holding leaves in a normal orientation."
+    ],
+    "stems": [
+      "Canes are firm, erect, and show normal coloration (green for primocanes, brown/woody for floricanes).",
+      "Stems are free of cankers, galls, lesions, or discolored streaks.",
+      "Prickles or hairs are normal in appearance.",
+      "No evidence of wilting or dieback from the tips."
+    ],
+    "fruit": [
+      "Berries are plump, firm, and show uniform, vibrant color when ripe.",
+      "Drupelets are well-formed, cohesive, and not shrunken.",
+      "Fruit surface is glossy and free of mold, rot, or insect damage.",
+      "Calyx (cap) is green and fresh-looking."
+    ],
+    "roots": [
+      "Root system is fibrous, well-developed, and white to light tan in color."
+    ],
+    "whole_plant": [
+      "Exhibits vigorous, upright growth habit.",
+      "Canopy is dense with new, healthy growth evident during the growing season.",
+      "Plant is well-anchored in the soil."
+    ],
+    "signs_microscopic_or_visible": [
+      "No visible fungal mycelium, spores, bacterial ooze, or other pathogen structures."
+    ]
+  },
+  "lookalikes": [],
+  "management": {
+    "cultural": [
+      "Select certified disease-free planting stock.",
+      "Plant in well-drained soil with full sun exposure.",
+      "Maintain proper plant spacing to promote air circulation.",
+      "Use drip irrigation to minimize leaf wetness.",
+      "Prune annually to remove spent floricanes and thin primocanes.",
+      "Practice good sanitation by removing weeds and plant debris.",
+      "Provide balanced nutrition based on soil tests."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "Management for a healthy plant focuses on preventative cultural practices that promote plant vigor and reduce environmental conditions favorable for disease development."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/rice/bacterial_leaf_blight.json b/diseases_knowledge_base/rice/bacterial_leaf_blight.json
new file mode 100644
index 0000000000000000000000000000000000000000..37296b9f8a2aeebf8e87e6d782f816f3abf648ec
--- /dev/null
+++ b/diseases_knowledge_base/rice/bacterial_leaf_blight.json
@@ -0,0 +1,147 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "rice.disease_bacterial.bacterial_leaf_blight",
+  "aliases": [
+    "BLB",
+    "Kresek"
+  ],
+  "crop": {
+    "common_name": "rice",
+    "scientific_name": "Oryza sativa",
+    "family": "Poaceae"
+  },
+  "condition": {
+    "common_name": "bacterial leaf blight",
+    "scientific_name": "Xanthomonas oryzae pv. oryzae",
+    "alt_names": [
+      "BLB",
+      "Kresek disease"
+    ],
+    "pathogen": {
+      "type": "disease_bacterial",
+      "taxonomy": {
+        "kingdom": "Bacteria",
+        "phylum": "Pseudomonadota",
+        "class": "Gammaproteobacteria",
+        "order": "Xanthomonadales",
+        "family": "Xanthomonadaceae",
+        "genus": "Xanthomonas",
+        "species": "Xanthomonas oryzae"
+      }
+    }
+  },
+  "issue_type": "disease_bacterial",
+  "transmission": {
+    "vectors": [
+      "wind-driven rain",
+      "irrigation water"
+    ],
+    "dispersal": [
+      "water splash",
+      "mechanical contact (tools, workers)",
+      "seed transmission"
+    ],
+    "overwintering": [
+      "infected crop stubble and straw",
+      "infected seeds",
+      "rhizomes of perennial weed hosts"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high nitrogen fertilizer application",
+      "high relative humidity",
+      "warm temperatures",
+      "frequent rainfall and windy conditions",
+      "susceptible rice varieties",
+      "close plant spacing"
+    ],
+    "temp_c_day": [
+      25,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      70,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 6
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-5% of leaf area affected. Lesions are small, often confined to the tips or margins of a few leaves.",
+    "moderate": "6-25% of leaf area affected. Lesions have elongated and cover a significant portion of multiple leaf blades. Some yellowing is apparent.",
+    "severe": ">25% of leaf area affected. Large, straw-colored lesions have coalesced, causing entire leaves to dry out and die. Wilting ('Kresek') may be present.",
+    "notes": "Severity is estimated as the percentage of the total foliage area showing symptoms. This aligns with the Standard Evaluation System (SES) for rice."
+  },
+  "symptoms": {
+    "leaves": [
+      "Begins as water-soaked, linear streaks on leaf tips or margins.",
+      "Streaks enlarge into yellow to grayish-white lesions with characteristic wavy or undulating margins.",
+      "Lesions can extend downwards, covering the entire leaf blade.",
+      "Infected leaves turn straw-colored, wilt, and die.",
+      "In high humidity, milky or opaque bacterial ooze (exudate) appears on lesions, especially in the morning.",
+      "This ooze dries into small, hard, yellowish, bead-like crusts on the leaf surface."
+    ],
+    "stems": [
+      "In the 'Kresek' phase, systemic infection causes the entire tiller to wilt and die, resembling drought stress."
+    ],
+    "fruit": [],
+    "roots": [],
+    "whole_plant": [
+      "Infected fields may appear blighted or scorched from a distance.",
+      "Young seedlings infected with the 'Kresek' strain wilt completely and die.",
+      "Panicles of severely infected plants may be sterile or have partially filled grains."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible milky bacterial ooze on lesions.",
+      "Dried, yellowish, bead-like bacterial exudate on leaf surfaces."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "leaf scald",
+      "condition_id": "rice.disease_fungal.leaf_scald",
+      "key_differences": [
+        "Leaf scald lesions have a distinct zonate or chevron pattern with alternating light and dark brown bands; BLB lesions are uniformly straw-colored with wavy margins.",
+        "Leaf scald lesions are typically grayish-green to tan with a dark brown border; BLB lesions lack this distinct border.",
+        "Bacterial ooze is a key sign of BLB in humid conditions and is absent in leaf scald."
+      ]
+    },
+    {
+      "condition_name": "narrow brown leaf spot",
+      "condition_id": "rice.disease_fungal.narrow_brown_leaf_spot",
+      "key_differences": [
+        "Narrow brown leaf spot causes short, linear, reddish-brown lesions parallel to the veins; BLB lesions are much wider, longer, and straw-colored.",
+        "BLB lesions start at the leaf margin or tip and have wavy edges; narrow brown leaf spots can appear anywhere on the blade and have straight edges.",
+        "BLB can cause entire leaves to blight and wilt; narrow brown leaf spot typically remains as small, discrete lesions."
+      ]
+    },
+    {
+      "condition_name": "tungro",
+      "condition_id": "rice.disease_viral.tungro",
+      "key_differences": [
+        "Tungro causes a general yellow to orange-yellow discoloration, often starting from the leaf tip, without distinct water-soaked lesions or wavy margins.",
+        "Tungro-infected plants are severely stunted, which is the primary symptom; stunting in BLB is secondary to severe leaf damage.",
+        "Bacterial ooze is absent in Tungro."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Planting of resistant or tolerant rice varieties.",
+      "Balanced nutrient management, especially avoiding excessive nitrogen.",
+      "Proper water management to avoid prolonged flooding.",
+      "Removal of weed hosts and infected crop debris after harvest.",
+      "Maintaining optimal plant spacing to promote air circulation."
+    ],
+    "biological": [
+      "Use of antagonistic bacteria like Pseudomonas fluorescens is under research but not widely practiced."
+    ],
+    "chemical": [
+      "Application of copper-based bactericides can offer some protection but is often not economically viable for field crops.",
+      "Use of antibiotics is restricted in many regions due to resistance concerns."
+    ],
+    "notes": "An integrated approach combining resistant varieties and sound cultural practices is the most effective and sustainable management strategy."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/rice/blast.json b/diseases_knowledge_base/rice/blast.json
new file mode 100644
index 0000000000000000000000000000000000000000..1243978e50b3878bb139819c15aff1bd8b10dca7
--- /dev/null
+++ b/diseases_knowledge_base/rice/blast.json
@@ -0,0 +1,149 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "rice.unknown.blast",
+  "aliases": [
+    "Rice rotten neck",
+    "Pyricularia blight"
+  ],
+  "crop": {
+    "common_name": "rice",
+    "scientific_name": "Oryza sativa",
+    "family": "Poaceae"
+  },
+  "condition": {
+    "common_name": "blast",
+    "scientific_name": "Magnaporthe oryzae",
+    "alt_names": [
+      "Rice blast fungus",
+      "Pyricularia oryzae"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Sordariomycetes",
+        "order": "Magnaporthales",
+        "family": "Magnaporthaceae",
+        "genus": "Magnaporthe",
+        "species": "oryzae"
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "Wind-borne conidia",
+      "Rain splash",
+      "Infected seed"
+    ],
+    "overwintering": [
+      "Infected crop debris (straw, stubble)",
+      "Infected seeds",
+      "Alternate hosts (weedy grasses)"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High nitrogen fertilization",
+      "Susceptible cultivars",
+      "High plant density",
+      "Periods of cool, humid weather",
+      "Drought stress followed by rain"
+    ],
+    "temp_c_day": [
+      25,
+      28
+    ],
+    "temp_c_night": [
+      20,
+      22
+    ],
+    "relative_humidity_pct": [
+      90,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 9
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "< 5% of leaf area affected with typical lesions.",
+    "moderate": "5-25% of leaf area affected; some lesions may be coalescing.",
+    "severe": "> 25% of leaf area affected, or any presence of neck/panicle infection.",
+    "notes": "Assessment focuses on upper, photosynthetically active leaves. Neck and panicle blast are automatically considered severe due to their direct impact on yield."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial small, water-soaked, grayish-green specks.",
+      "Lesions expand into characteristic diamond-shaped or spindle-shaped spots.",
+      "Mature lesions have a grayish or whitish center.",
+      "Lesions are surrounded by a distinct dark brown or reddish-brown border.",
+      "Multiple lesions can coalesce, causing the entire leaf to blight or die.",
+      "Lesions are typically wider in the center and pointed at both ends."
+    ],
+    "stems": [
+      "Grayish-brown lesions at the neck node, just below the panicle ('neck blast').",
+      "Infected neck turns black and shrivels, often causing the panicle to break and hang down.",
+      "The tissue above the neck lesion dies, a symptom known as 'rotten neck'."
+    ],
+    "fruit": [
+      "Infection of panicle branches ('panicle blast') causes them to turn dark brown to black.",
+      "Spikelets on infected branches are sterile or produce partially filled, chalky grains.",
+      "Infected grains may have small brown to black spots."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Severe infections can lead to lodging (stem breakage at infected nodes)."
+    ],
+    "signs_microscopic_or_visible": [
+      "Under high humidity, a fuzzy, gray mold (conidia and conidiophores) may be visible in the center of lesions."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "brown_spot",
+      "condition_id": "rice.disease_fungal.brown_spot",
+      "key_differences": [
+        "Lesions are circular or oval, not diamond-shaped like blast.",
+        "Lesions are more uniformly dark brown and lack the distinct gray center of mature blast lesions.",
+        "Brown spot lesions often have a prominent yellow halo, which is less common in blast."
+      ]
+    },
+    {
+      "condition_name": "narrow_brown_leaf_spot",
+      "condition_id": "rice.disease_fungal.narrow_brown_leaf_spot",
+      "key_differences": [
+        "Lesions are long, narrow, and linear, running parallel to leaf veins, unlike the wide, diamond shape of blast.",
+        "Lesions are uniformly light to reddish-brown and do not develop a gray center.",
+        "Lesions are significantly shorter in width compared to blast lesions."
+      ]
+    },
+    {
+      "condition_name": "bacterial_leaf_blight",
+      "condition_id": "rice.disease_bacterial.bacterial_leaf_blight",
+      "key_differences": [
+        "Symptoms are wavy-margined, water-soaked streaks starting from the leaf tip or margins, not discrete spots.",
+        "Bacterial blight often produces yellowish, milky, or amber-colored bacterial ooze droplets, which are absent in blast.",
+        "Dried lesions are grayish-white or straw-colored without the distinct, dark brown border typical of blast."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant resistant cultivars.",
+      "Avoid excessive nitrogen fertilizer application.",
+      "Maintain proper water management, avoiding periods of drought stress.",
+      "Remove and destroy infected crop residue after harvest.",
+      "Manage weed hosts in and around the field."
+    ],
+    "biological": [
+      "Application of bio-control agents like *Trichoderma* spp. or *Pseudomonas fluorescens*."
+    ],
+    "chemical": [
+      "Foliar application of protective or systemic fungicides (e.g., azoxystrobin, tricyclazole, isoprothiolane).",
+      "Seed treatment with systemic fungicides to prevent seedling infection."
+    ],
+    "notes": "Fungicide application timing is critical; it is most effective when applied preventatively or at the very early stages of disease, often guided by weather-based forecasting models."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/rice/brown_spot.json b/diseases_knowledge_base/rice/brown_spot.json
new file mode 100644
index 0000000000000000000000000000000000000000..f87c505e5794fd7c00f440d6425456d06fe8822b
--- /dev/null
+++ b/diseases_knowledge_base/rice/brown_spot.json
@@ -0,0 +1,149 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "rice.disease_fungal.brown_spot",
+  "aliases": [
+    "Helminthosporium leaf spot",
+    "sesame leaf spot"
+  ],
+  "crop": {
+    "common_name": "Rice",
+    "scientific_name": "Oryza sativa",
+    "family": "Poaceae"
+  },
+  "condition": {
+    "common_name": "Brown Spot",
+    "scientific_name": "Cochliobolus miyabeanus",
+    "alt_names": [
+      "Helminthosporium leaf spot",
+      "Sesame leaf spot",
+      "Bipolaris oryzae (anamorph)"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Pleosporales",
+        "family": "Pleosporaceae",
+        "genus": "Cochliobolus",
+        "species": "miyabeanus"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "Wind-borne conidia",
+      "Rain splash",
+      "Infected seed"
+    ],
+    "overwintering": [
+      "Infected seeds",
+      "Infected crop debris (stubble, straw)",
+      "Collateral weed hosts"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High relative humidity (>80%)",
+      "Nutrient deficient soils (especially potassium, silicon, or manganese)",
+      "Water stress (drought or flood conditions)",
+      "Poorly drained or saline soils",
+      "Temperatures between 20-30\u00b0C"
+    ],
+    "temp_c_day": [
+      25,
+      30
+    ],
+    "temp_c_night": [
+      20,
+      25
+    ],
+    "relative_humidity_pct": [
+      80,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 8
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-5% of leaf area affected. Lesions are small, scattered, and do not coalesce.",
+    "moderate": "6-25% of leaf area affected. Lesions are more numerous, some may be coalescing, and slight yellowing of the leaf is visible.",
+    "severe": ">25% of leaf area affected. Lesions are large, numerous, and coalescing, leading to significant leaf yellowing, browning, and necrosis (blighting).",
+    "notes": "Severity is assessed on the upper, most affected leaves. This rubric can also be applied to glumes during the grain-filling stage."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, circular to oval spots, initially yellowish-brown.",
+      "Mature spots are typically 2-10 mm long, oval-shaped with a grayish or whitish center.",
+      "A distinct reddish-brown to dark brown halo or border surrounds the gray center.",
+      "Lesions resemble sesame seeds in shape and color.",
+      "Under severe infection, spots coalesce, causing the entire leaf to yellow, wither, and die.",
+      "Lesions are distributed randomly across the leaf blade."
+    ],
+    "stems": [
+      "Dark brown or black lesions may appear on the leaf sheaths and collar."
+    ],
+    "fruit": [
+      "Small, black or dark brown spots on the glumes (hull).",
+      "Infection can lead to partially filled or discolored grains ('pecky rice')."
+    ],
+    "roots": [
+      "Root system can be weakened due to overall plant stress, but direct symptoms are rare."
+    ],
+    "whole_plant": [
+      "Stunted growth and reduced tillering in severe cases, especially from seedling infection."
+    ],
+    "signs_microscopic_or_visible": [
+      "Under high humidity, a velvety, dark olive-green to black fungal growth (conidia and conidiophores) may be visible in the center of lesions."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Blast",
+      "condition_id": "rice.disease_fungal.blast",
+      "key_differences": [
+        "Blast lesions are typically diamond or spindle-shaped with pointed ends, not oval like brown spot.",
+        "The border of a blast lesion is often grayish or necrotic, not the distinct dark reddish-brown halo of brown spot.",
+        "Blast often causes a 'neck rot' symptom at the panicle base, which is more severe and common than with brown spot."
+      ]
+    },
+    {
+      "condition_name": "Narrow Brown Leaf Spot",
+      "condition_id": "rice.disease_fungal.narrow_brown_leaf_spot",
+      "key_differences": [
+        "Lesions are short, linear, and narrow, running parallel to the leaf veins, unlike the oval shape of brown spot.",
+        "Lesions are uniformly light to reddish-brown and lack the distinct gray center and dark halo of mature brown spot.",
+        "Lesions do not typically grow as wide as brown spot lesions."
+      ]
+    },
+    {
+      "condition_name": "Bacterial Leaf Blight",
+      "condition_id": "rice.disease_bacterial.bacterial_leaf_blight",
+      "key_differences": [
+        "Bacterial blight creates wavy-edged, water-soaked streaks that turn yellow or white, not discrete oval spots.",
+        "Blight symptoms often start at the leaf tip or margins and progress downwards, unlike the scattered spots of brown spot.",
+        "Tiny amber-colored droplets of bacterial ooze may be visible on blight lesions in the morning, which is absent in brown spot."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified disease-free seeds.",
+      "Maintain balanced soil fertility, especially adequate potassium (K).",
+      "Manage water to avoid drought or flooding stress.",
+      "Remove and destroy infected crop debris and weed hosts post-harvest.",
+      "Plant resistant or tolerant varieties where available."
+    ],
+    "biological": [
+      "Application of Trichoderma or Pseudomonas fluorescens-based bio-fungicides can suppress the pathogen."
+    ],
+    "chemical": [
+      "Seed treatment with fungicides (e.g., thiram, iprodione) to reduce primary inoculum.",
+      "Foliar application of protective or systemic fungicides like propiconazole, azoxystrobin, or mancozeb."
+    ],
+    "notes": "Fungicide application is most effective when applied preventatively or at the first sign of disease, guided by scouting and favorable weather forecasts."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/rice/healthy.json b/diseases_knowledge_base/rice/healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..b2b17fab37425841e53246fd98d1883b2ebad468
--- /dev/null
+++ b/diseases_knowledge_base/rice/healthy.json
@@ -0,0 +1,131 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "rice.healthy.healthy",
+  "aliases": [
+    "normal rice",
+    "unaffected rice",
+    "healthy plant"
+  ],
+  "crop": {
+    "common_name": "Rice",
+    "scientific_name": "Oryza sativa",
+    "family": "Poaceae"
+  },
+  "condition": {
+    "common_name": "Healthy",
+    "scientific_name": null,
+    "alt_names": [],
+    "pathogen": {
+      "type": "non-pathogenic",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "healthy",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Optimal growing conditions",
+      "Adequate water and nutrient supply",
+      "Absence of pathogen pressure",
+      "Good field sanitation"
+    ],
+    "temp_c_day": [
+      25,
+      32
+    ],
+    "temp_c_night": [
+      20,
+      25
+    ],
+    "relative_humidity_pct": [
+      70,
+      90
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "0% of leaf or plant area shows any symptoms of stress, discoloration, or damage.",
+    "moderate": "Not applicable for a healthy plant.",
+    "severe": "Not applicable for a healthy plant.",
+    "notes": "Severity for a healthy plant is defined as the absence of symptoms. Any presence of symptoms would change the diagnosis to a disorder or disease."
+  },
+  "symptoms": {
+    "leaves": [
+      "Leaves are uniformly green, varying from light to dark green depending on variety and nitrogen status.",
+      "Leaf blades are fully expanded, turgid, and typically erect or gently arching.",
+      "Absence of spots, lesions, streaks, or pustules.",
+      "Leaf margins and tips are intact and show no signs of necrosis or yellowing.",
+      "No signs of insect feeding, such as holes, skeletonization, or mines."
+    ],
+    "stems": [
+      "Stems (culms) are upright, strong, and have a healthy green or straw color.",
+      "Nodes and internodes are free of discoloration or lesions.",
+      "Sheaths are wrapped tightly around the culm and are free of spots or blight."
+    ],
+    "fruit": [
+      "Panicles (if present) are well-developed and drooping when grains are filled.",
+      "Grains (spikelets) are uniform in color and size, without spots, discoloration, or fungal growth."
+    ],
+    "roots": [
+      "Root system is well-developed, with numerous white or light-tan, healthy-looking roots."
+    ],
+    "whole_plant": [
+      "Plant exhibits vigorous, uniform growth according to its developmental stage.",
+      "Tillering is active and appropriate for the variety and planting density."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "bacterial_leaf_blight",
+      "condition_id": "rice.bacterial.bacterial_leaf_blight",
+      "key_differences": [
+        "Healthy leaves have uniform green color, while BLB shows wavy-edged, water-soaked, yellow-to-white lesions starting from leaf tips or margins.",
+        "Healthy plants lack bacterial ooze, which can be seen as milky or yellowish droplets on BLB lesions in the morning.",
+        "The overall plant vigor is high in healthy plants, whereas severe BLB can cause wilting and plant death ('kresek' phase)."
+      ]
+    },
+    {
+      "condition_name": "brown_spot",
+      "condition_id": "rice.fungal.brown_spot",
+      "key_differences": [
+        "Healthy leaves are completely free of spots.",
+        "Brown spot is characterized by distinct, small, oval-to-circular lesions with a grayish center and a dark brown margin.",
+        "Healthy grains are clean, whereas brown spot can infect grains, causing dark spots or discoloration ('pecky rice')."
+      ]
+    },
+    {
+      "condition_name": "leaf_scald",
+      "condition_id": "rice.fungal.leaf_scald",
+      "key_differences": [
+        "Healthy leaves have intact, green tips.",
+        "Leaf scald presents as large, oblong or lens-shaped lesions starting from the leaf tip or margin, with alternating zones of light tan and dark brown, creating a 'chevron' or 'V' pattern.",
+        "Healthy leaves lack the water-soaked appearance at the lesion edge that is characteristic of active leaf scald."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified, disease-free seed of resistant varieties.",
+      "Maintain balanced soil fertility, especially appropriate nitrogen levels.",
+      "Ensure proper water management to avoid both drought and waterlogging stress.",
+      "Practice good field sanitation, including removal of weed hosts and crop residues."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "Management for 'healthy' involves proactive, preventative measures and maintaining optimal growing conditions to prevent the onset of diseases and disorders."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/rice/hispa.json b/diseases_knowledge_base/rice/hispa.json
new file mode 100644
index 0000000000000000000000000000000000000000..3e3241039f2ffe49f71ff6ebd5e1e03da4c73d7e
--- /dev/null
+++ b/diseases_knowledge_base/rice/hispa.json
@@ -0,0 +1,126 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "rice.pest_insect.hispa",
+  "aliases": [
+    "rice hispa",
+    "rice hispid",
+    "spiny beetle"
+  ],
+  "crop": {
+    "common_name": "rice",
+    "scientific_name": "Oryza sativa",
+    "family": "Poaceae"
+  },
+  "condition": {
+    "common_name": "hispa",
+    "scientific_name": "Dicladispa armigera",
+    "alt_names": [],
+    "pathogen": {
+      "type": "Insect",
+      "taxonomy": {
+        "kingdom": "Animalia",
+        "phylum": "Arthropoda",
+        "class": "Insecta",
+        "order": "Coleoptera",
+        "family": "Chrysomelidae",
+        "genus": "Dicladispa",
+        "species": "armigera"
+      }
+    }
+  },
+  "issue_type": "pest_insect",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "Adult flight"
+    ],
+    "overwintering": [
+      "Adults overwinter in grasses on bunds and in stubble."
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High humidity and intermittent rainfall",
+      "Overcast days",
+      "Presence of alternate grass hosts on bunds",
+      "Excessive nitrogen fertilizer application"
+    ],
+    "temp_c_day": [
+      25,
+      32
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      80,
+      95
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "<10% of leaf area shows white streaks or larval mines.",
+    "moderate": "10-30% of leaf area is damaged; some leaves may start to dry at the tips.",
+    "severe": ">30% of leaf area is damaged; fields may appear whitish or scorched from a distance.",
+    "notes": "Severity is assessed by estimating the percentage of the total leaf surface area covered by the characteristic white streaks from adult feeding and white blotches from larval mining. A value of 0 indicates the factor is not a primary driver for this insect pest."
+  },
+  "symptoms": {
+    "leaves": [
+      "Presence of long, narrow, parallel white streaks on the upper leaf surface, where adults have scraped the green tissue.",
+      "Leaves appear skeletonized between the veins.",
+      "Presence of irregular, translucent white patches or blisters, which are mines created by larvae feeding inside the leaf.",
+      "Leaf tips may become dry, withered, and turn brown.",
+      "In severe infestations, entire leaves turn whitish and dry up.",
+      "Affected fields can have a scorched or dried-up appearance from a distance."
+    ],
+    "stems": [],
+    "fruit": [],
+    "roots": [],
+    "whole_plant": [
+      "Stunted growth in young plants due to heavy feeding pressure.",
+      "Reduced plant vigor and tillering."
+    ],
+    "signs_microscopic_or_visible": [
+      "Presence of small (3-5 mm), spiny, bluish-black adult beetles on the leaves.",
+      "Presence of small, yellowish grubs (larvae) inside the leaf mines if dissected.",
+      "Presence of small, brown, oval pupae attached to the leaf surface, often near the base."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "leaffolder",
+      "condition_id": "rice.pest_insect.leaffolder",
+      "key_differences": [
+        "Hispa creates narrow, parallel white streaks from adult feeding; leaffolder damage is broader white patches scraped from within a folded leaf.",
+        "Hispa larvae create mines (tunnels) within the leaf tissue; leaffolder larvae fold the leaf longitudinally and feed inside the fold.",
+        "With hispa, the leaf remains flat; with leaffolder, the key sign is the folded or rolled leaf blade.",
+        "The hispa adult is a small, spiny black beetle; the leaffolder adult is a yellowish-brown moth."
+      ]
+    },
+    {
+      "condition_name": "leaf_scald",
+      "condition_id": "rice.disease.leaf_scald",
+      "key_differences": [
+        "Hispa damage consists of dry, white, scraped streaks; leaf scald lesions are initially water-soaked and have distinct, alternating light and dark brown bands (zonation).",
+        "Hispa damage can occur anywhere on the leaf blade; leaf scald typically starts at the leaf tip or margins and progresses downwards.",
+        "Hispa is caused by an insect, and the beetle may be visible; leaf scald is a fungal disease with no visible pest."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Clipping and destroying the top portion of seedlings before transplanting to remove eggs.",
+      "Maintaining clean bunds by removing weeds and alternate grass hosts.",
+      "Avoiding over-application of nitrogen fertilizers.",
+      "Flooding the nursery or field for a day to dislodge and drown adults."
+    ],
+    "biological": [
+      "Conservation of natural enemies like small wasps (e.g., Eulophid wasp) that parasitize larvae and pupae.",
+      "Use of bio-pesticides based on fungi like Beauveria bassiana."
+    ],
+    "chemical": [
+      "Application of recommended systemic or contact insecticides when pest populations exceed economic thresholds.",
+      "Seed treatment with appropriate insecticides in endemic areas."
+    ],
+    "notes": "Integrated Pest Management (IPM) combining cultural, biological, and need-based chemical methods is the most effective approach."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/rice/leaf_scald.json b/diseases_knowledge_base/rice/leaf_scald.json
new file mode 100644
index 0000000000000000000000000000000000000000..cf35429fe869cd5b41ed76b1b8639442f93cc811
--- /dev/null
+++ b/diseases_knowledge_base/rice/leaf_scald.json
@@ -0,0 +1,135 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "rice.unknown.leaf_scald",
+  "aliases": [
+    "scald",
+    "leaf tip scald",
+    "rice leaf scald"
+  ],
+  "crop": {
+    "common_name": "rice",
+    "scientific_name": "Oryza sativa",
+    "family": "Poaceae"
+  },
+  "condition": {
+    "common_name": "leaf scald",
+    "scientific_name": "Microdochium oryzae",
+    "alt_names": [
+      "Monographella albescens",
+      "Rhynchosporium oryzae"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Capnodiales",
+        "family": "Mycosphaerellaceae",
+        "genus": "Microdochium",
+        "species": "oryzae"
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "wind-borne conidia",
+      "rain splash",
+      "infected seeds",
+      "infected crop debris"
+    ],
+    "overwintering": [
+      "infected seeds",
+      "infected stubble",
+      "crop residue",
+      "weedy hosts"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high nitrogen fertilization",
+      "frequent rainfall",
+      "high humidity",
+      "dense plant canopy",
+      "cool temperatures during flowering"
+    ],
+    "temp_c_day": [
+      25,
+      28
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      95,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 10
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "<5% of the upper leaf area affected, with lesions mostly confined to the leaf tips.",
+    "moderate": "5-25% of the upper leaf area affected, with lesions expanding downwards showing characteristic zonation patterns.",
+    "severe": ">25% of the upper leaf area affected, multiple leaves show extensive blighting, and leaf tips are necrotic and dry.",
+    "notes": "Severity is best assessed on the flag leaf and the two leaves below it during flowering to grain-filling stages. Focus on the percentage of total leaf area showing symptoms."
+  },
+  "symptoms": {
+    "leaves": [
+      "Lesions initiate as grey-green, water-soaked spots near the leaf tip or along the margins.",
+      "Lesions enlarge into a characteristic chevron (V-shape) pattern.",
+      "Developed lesions show alternating bands of light tan and dark brown, creating a zonation or 'scalded' look.",
+      "A diffuse, yellowish halo often surrounds the advancing edge of the lesion.",
+      "Multiple lesions can coalesce, causing the entire leaf blade to wither and die from the tip downwards.",
+      "Symptoms are most prominent on mature, upper leaves.",
+      "Infected leaves eventually turn grayish-brown and dry out completely."
+    ],
+    "stems": [
+      "Typically asymptomatic, but leaf sheaths can be affected in severe cases."
+    ],
+    "fruit": [
+      "Infection can spread to the panicle, causing discoloration of glumes, poor grain filling, and sterility."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Severe infections reduce photosynthetic area, leading to decreased plant vigor and lower yields."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "bacterial_leaf_blight",
+      "condition_id": "rice.disease_bacterial.bacterial_leaf_blight",
+      "key_differences": [
+        "Bacterial blight lesions have wavy, undulating margins, unlike the more distinct zonation or V-shape of leaf scald.",
+        "Bacterial blight produces yellow, water-soaked stripes parallel to veins, which is not a feature of scald.",
+        "In high humidity, creamy bacterial ooze may be visible on bacterial blight lesions, which is absent in fungal scald."
+      ]
+    },
+    {
+      "condition_name": "blast",
+      "condition_id": "rice.disease_fungal.blast",
+      "key_differences": [
+        "Leaf blast lesions are typically diamond-shaped or spindle-shaped with grey centers and dark brown borders.",
+        "Leaf scald lesions start at the leaf tip/margin and expand downwards in a banded, chevron pattern, not as discrete diamond shapes.",
+        "Blast can also infect the stem nodes ('node blast') and panicle base ('neck blast'), symptoms not caused by leaf scald."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant certified disease-free seeds.",
+      "Apply balanced nitrogen fertilizer; avoid excessive rates.",
+      "Remove and destroy infected crop debris after harvest.",
+      "Ensure proper plant spacing to promote air circulation and reduce humidity within the canopy.",
+      "Control alternate weed hosts in and around the field."
+    ],
+    "biological": [
+      "Research has shown potential for some strains of Trichoderma and Pseudomonas fluorescens as biocontrol agents."
+    ],
+    "chemical": [
+      "Apply foliar fungicides (e.g., propiconazole, azoxystrobin, trifloxystrobin) at the first sign of disease.",
+      "Seed treatment with appropriate fungicides can reduce primary inoculum."
+    ],
+    "notes": "Fungicide application is most effective when timed preventatively or at the early onset of disease, particularly during the booting and heading stages of the crop."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/rice/leaffolder.json b/diseases_knowledge_base/rice/leaffolder.json
new file mode 100644
index 0000000000000000000000000000000000000000..c8d12797c53e9a9dcaaf8c6cc73c5b6ae973448b
--- /dev/null
+++ b/diseases_knowledge_base/rice/leaffolder.json
@@ -0,0 +1,130 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "rice.pest_insect.leaffolder",
+  "aliases": [
+    "rice leaf roller",
+    "rice leaf tier"
+  ],
+  "crop": {
+    "common_name": "rice",
+    "scientific_name": "Oryza sativa",
+    "family": "Poaceae"
+  },
+  "condition": {
+    "common_name": "leaffolder",
+    "scientific_name": "Cnaphalocrocis medinalis",
+    "alt_names": [
+      "leaf roller"
+    ],
+    "pathogen": {
+      "type": "insect",
+      "taxonomy": {
+        "kingdom": "Animalia",
+        "phylum": "Arthropoda",
+        "class": "Insecta",
+        "order": "Lepidoptera",
+        "family": "Crambidae",
+        "genus": "Cnaphalocrocis",
+        "species": "medinalis"
+      }
+    }
+  },
+  "issue_type": "pest_insect",
+  "transmission": {
+    "vectors": [
+      "adult moth"
+    ],
+    "dispersal": [
+      "Wind-assisted flight of adult moths"
+    ],
+    "overwintering": [
+      "Larvae or pupae in rice stubble, weeds, or volunteer rice plants"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High nitrogen fertilizer application",
+      "High plant density or shaded conditions",
+      "High humidity and presence of grassy weeds",
+      "Periods of continuous rainfall"
+    ],
+    "temp_c_day": [
+      25,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      80,
+      95
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area shows white, transparent streaks or folded leaves. Damage is scattered and minimal.",
+    "moderate": "11-30% of leaf area is affected. Multiple folded leaves are visible on many tillers.",
+    "severe": ">30% of leaf area is affected, particularly the flag leaves. The field may appear whitish or scorched from a distance.",
+    "notes": "Severity is based on the percentage of photosynthetic area lost to larval feeding. Damage to the flag leaf during the reproductive stage is most critical for yield loss."
+  },
+  "symptoms": {
+    "leaves": [
+      "Longitudinal folding of the leaf blade, with margins fastened by silk strands.",
+      "Presence of white, transparent, or papery streaks running parallel to the midrib.",
+      "Scraping of the green tissue (chlorophyll) from within the folded leaf.",
+      "Leaf tips may appear white and dried up.",
+      "In severe infestations, entire leaves look white and scorched.",
+      "Presence of elongated, greenish-yellow fecal pellets inside the folded leaf."
+    ],
+    "stems": [],
+    "fruit": [],
+    "roots": [],
+    "whole_plant": [
+      "Reduced plant vigor and stunted growth in heavy infestations.",
+      "A severely infested field appears whitish and scorched from a distance."
+    ],
+    "signs_microscopic_or_visible": [
+      "A slender, yellowish-green larva (caterpillar) is visible if the folded leaf is opened.",
+      "Small, yellowish, disc-shaped eggs laid singly or in small groups on the leaf surface.",
+      "Brownish pupae may be found inside the folded leaves or leaf sheaths."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "hispa",
+      "condition_id": "rice.pest_insect.hispa",
+      "key_differences": [
+        "Hispa damage consists of narrow, parallel, white streaks from adult feeding, whereas leaffolder causes broader scraped patches inside a folded leaf.",
+        "Leaffolder physically folds the leaf blade together with silk; hispa does not cause leaf folding.",
+        "Hispa larvae are leaf miners that create tunnels or blisters within the leaf tissue, not external feeders within a fold."
+      ]
+    },
+    {
+      "condition_name": "bacterial_leaf_blight",
+      "condition_id": "rice.disease_bacterial.bacterial_leaf_blight",
+      "key_differences": [
+        "Bacterial blight causes water-soaked lesions that turn yellowish-white with wavy margins, not distinct scraped streaks.",
+        "Blight lesions often start from the leaf tip or margins and progress downwards, unlike the damage contained within a leaffolder's fold.",
+        "The leaf is not physically folded or webbed together in bacterial blight.",
+        "Bacterial ooze may be present on blight lesions, a sign absent in leaffolder damage."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Avoid excessive nitrogen fertilizer application.",
+      "Maintain wider plant spacing to decrease humidity and pest movement.",
+      "Remove grassy weeds from bunds and fields, as they serve as alternate hosts.",
+      "Practice synchronous planting within a region to break the pest cycle."
+    ],
+    "biological": [
+      "Conserve natural enemies like spiders, wasps, dragonflies, and predatory beetles.",
+      "Apply bio-pesticides such as *Bacillus thuringiensis* (Bt) or Beauveria bassiana."
+    ],
+    "chemical": [
+      "Apply recommended insecticides only when the pest population exceeds the economic threshold level (ETL).",
+      "Avoid prophylactic spraying to protect beneficial insects.",
+      "Use selective insecticides like chlorantraniliprole or flubendiamide."
+    ],
+    "notes": "The economic threshold is often defined as 1-2 freshly damaged leaves per hill during the vegetative stage or >10% flag leaf damage during the reproductive stage."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/rice/narrow_brown_leaf_spot.json b/diseases_knowledge_base/rice/narrow_brown_leaf_spot.json
new file mode 100644
index 0000000000000000000000000000000000000000..815cd4ce2c293732eb020c24d44f6e8b867e8563
--- /dev/null
+++ b/diseases_knowledge_base/rice/narrow_brown_leaf_spot.json
@@ -0,0 +1,142 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "rice.disease_fungal.narrow_brown_leaf_spot",
+  "aliases": [
+    "Cercospora leaf spot",
+    "Narrow brown spot"
+  ],
+  "crop": {
+    "common_name": "rice",
+    "scientific_name": "Oryza sativa",
+    "family": "Poaceae"
+  },
+  "condition": {
+    "common_name": "narrow brown leaf spot",
+    "scientific_name": "Cercospora janseana",
+    "alt_names": [
+      "Cercospora leaf spot"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Capnodiales",
+        "family": "Mycosphaerellaceae",
+        "genus": "Cercospora",
+        "species": "janseana"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "wind-borne conidia",
+      "rain splash",
+      "infected seeds"
+    ],
+    "overwintering": [
+      "infected crop debris (stubble, straw)",
+      "infected seeds",
+      "weedy hosts"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high humidity",
+      "potassium deficiency",
+      "high nitrogen fertilization",
+      "susceptible cultivars",
+      "late-planted crops"
+    ],
+    "temp_c_day": [
+      25,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 10
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "< 5% of flag leaf area affected, lesions are discrete.",
+    "moderate": "5-25% of flag leaf area affected, some lesions may begin to coalesce.",
+    "severe": "> 25% of flag leaf area affected, significant lesion coalescence causing premature leaf browning and senescence.",
+    "notes": "Severity is best assessed on the upper leaves (especially the flag leaf) during the grain-filling stage, as this has the most significant impact on yield."
+  },
+  "symptoms": {
+    "leaves": [
+      "Short, linear, reddish-brown to dark brown lesions.",
+      "Lesions are typically narrow, about 1-2 mm wide and 2-10 mm long.",
+      "Lesions are oriented parallel to the leaf veins, appearing as fine streaks.",
+      "Symptoms are more prominent on mature, older leaves but can occur on flag leaves late in the season.",
+      "In severe infections, lesions can merge (coalesce), leading to widespread browning and death of the leaf.",
+      "Lesions generally lack a distinct yellow halo, distinguishing them from brown spot.",
+      "The color of the lesions is relatively uniform, without a gray center."
+    ],
+    "stems": [
+      "Lesions can appear on the leaf sheaths, similar in appearance to those on the leaf blades."
+    ],
+    "fruit": [
+      "Small, brown, necrotic spots can develop on the glumes and panicle branches."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "In highly susceptible varieties, severe infections can cause premature ripening and reduced grain weight and quality."
+    ],
+    "signs_microscopic_or_visible": [
+      "Under very high humidity, a hand lens may reveal sparse, grayish fungal growth (conidiophores and conidia) on the surface of older lesions."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "brown_spot",
+      "condition_id": "rice.disease_fungal.brown_spot",
+      "key_differences": [
+        "Lesion Shape: Brown spot lesions are distinctly oval or circular, not long and linear.",
+        "Lesion Center: Mature brown spot lesions often have a gray or whitish center, which is absent in narrow brown leaf spot.",
+        "Halo: Brown spot lesions are typically surrounded by a prominent yellow halo.",
+        "Size: Brown spot lesions are generally wider than the narrow, streak-like lesions of narrow brown spot."
+      ]
+    },
+    {
+      "condition_name": "blast",
+      "condition_id": "rice.disease_fungal.blast",
+      "key_differences": [
+        "Lesion Shape: Leaf blast lesions are characteristically diamond-shaped or spindle-shaped (wider in the middle, pointed at both ends).",
+        "Lesion Center: Blast lesions have a distinct grayish or whitish center.",
+        "Lesion Border: Blast lesions have a dark brown or reddish-brown border, creating a more defined pattern than the uniform streak of narrow brown spot."
+      ]
+    },
+    {
+      "condition_name": "bacterial_leaf_blight",
+      "condition_id": "rice.disease_bacterial.bacterial_leaf_blight",
+      "key_differences": [
+        "Symptom Progression: Bacterial blight typically starts at the leaf tip or margins and progresses downwards in large, wavy, water-soaked streaks.",
+        "Lesion Appearance: Blight lesions are initially grayish-green and water-soaked, later turning yellow or straw-colored, not discrete brown lines.",
+        "Bacterial Ooze: In the morning, small, milky or yellowish droplets of bacterial ooze may be visible on the surface of blight lesions."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant resistant or tolerant rice varieties.",
+      "Ensure balanced soil fertility, particularly adequate potassium (K) levels.",
+      "Remove or plow under infected crop residue to reduce primary inoculum.",
+      "Maintain appropriate plant density to ensure good air circulation."
+    ],
+    "biological": [
+      "No widely adopted commercial biological control agents are currently available for this specific disease."
+    ],
+    "chemical": [
+      "Foliar application of fungicides can be effective, especially during the booting to heading stages.",
+      "Commonly used fungicide classes include strobilurins, triazoles, and dithiocarbamates (e.g., mancozeb)."
+    ],
+    "notes": "Chemical control is usually only economically justified on susceptible varieties under disease-favorable conditions, with applications timed to protect the flag leaf."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/rice/pest_damage.json b/diseases_knowledge_base/rice/pest_damage.json
new file mode 100644
index 0000000000000000000000000000000000000000..75c6a62b726a5be61f1ffab0743f680b3560205b
--- /dev/null
+++ b/diseases_knowledge_base/rice/pest_damage.json
@@ -0,0 +1,150 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "rice.unknown.pest_damage",
+  "aliases": [
+    "Insect damage on rice",
+    "Rice pest feeding injury",
+    "Arthropod damage on rice"
+  ],
+  "crop": {
+    "common_name": "Rice",
+    "scientific_name": "Oryza sativa",
+    "family": "Poaceae"
+  },
+  "condition": {
+    "common_name": "Pest Damage",
+    "scientific_name": "",
+    "alt_names": [
+      "Insect feeding",
+      "Chewing damage",
+      "Sucking damage",
+      "Boring damage"
+    ],
+    "pathogen": {
+      "type": "INSECT",
+      "taxonomy": {
+        "kingdom": "Animalia",
+        "phylum": "Arthropoda",
+        "class": "Insecta",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [
+      "Adult insects (flight)"
+    ],
+    "dispersal": [
+      "Wind",
+      "Water (irrigation)",
+      "Contaminated equipment",
+      "Human activity"
+    ],
+    "overwintering": [
+      "Crop residue",
+      "Weed hosts",
+      "Soil",
+      "Stubble"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Warm, humid conditions",
+      "Monoculture planting",
+      "Presence of alternate weed hosts",
+      "High nitrogen fertilizer application",
+      "Staggered planting dates in a region"
+    ],
+    "temp_c_day": [
+      25,
+      35
+    ],
+    "temp_c_night": [
+      20,
+      25
+    ],
+    "relative_humidity_pct": [
+      70,
+      90
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area shows signs of feeding (chewing, scraping, stippling).",
+    "moderate": "11-40% of leaf area is affected; some leaves may be skeletonized or rolled.",
+    "severe": ">40% of leaf area is affected; significant defoliation, or presence of 'deadhearts' or 'whiteheads'.",
+    "notes": "Severity is estimated based on the total visible leaf area damaged by pest activity. For systemic damage like deadhearts, consider the percentage of affected tillers in the plant or image frame."
+  },
+  "symptoms": {
+    "leaves": [
+      "Irregular holes or chewed margins on leaf blades.",
+      "White, parallel feeding streaks or scrapes on the leaf surface.",
+      "Leaves folded or rolled longitudinally, often held together by silk.",
+      "Skeletonized leaves where only the midrib and veins remain.",
+      "Small, yellowish or white spots (stippling) from sucking insects.",
+      "Presence of frass (insect excrement) on leaf surfaces."
+    ],
+    "stems": [
+      "Boreholes visible on the stem or at nodes.",
+      "Central shoot (tiller) is dead and dry, and can be pulled out easily ('deadheart').",
+      "Wilting or lodging of tillers."
+    ],
+    "fruit": [
+      "Panicle fails to emerge or emerges empty and white ('whitehead').",
+      "Damaged, discolored, or partially filled grains."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Stunted growth or reduced plant vigor.",
+      "Widespread yellowing and drying of plants, known as 'hopperburn'."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible insects (larvae, pupae, or adults) on leaves or stems.",
+      "Webbing or silk on or between leaves.",
+      "Egg masses on leaf surfaces."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Bacterial Leaf Blight",
+      "condition_id": "rice.disease.bacterial_leaf_blight",
+      "key_differences": [
+        "Bacterial blight lesions are wavy-margined, water-soaked streaks starting from leaf tips/margins, whereas pest damage is typically discrete holes, scrapes, or stippling.",
+        "Bacterial blight can produce milky or yellowish bacterial ooze in early mornings, which is absent in pest damage.",
+        "Pest damage may be accompanied by visible signs of the insect (frass, webbing, larvae), which are absent in bacterial blight."
+      ]
+    },
+    {
+      "condition_name": "Leaf Scald",
+      "condition_id": "rice.disease.leaf_scald",
+      "key_differences": [
+        "Leaf scald causes distinct zonate or chevron-shaped lesions with alternating light and dark brown bands, typically starting from the leaf tip.",
+        "Pest damage is more irregular (holes, scrapes) and lacks the characteristic banding pattern of leaf scald.",
+        "Leaf scald lesions often have a prominent yellowish halo, which is less common in direct feeding injury from pests."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Synchronous planting across a region to break pest life cycles.",
+      "Removal of weed hosts from fields and surrounding bunds.",
+      "Proper water and nutrient management to promote plant vigor.",
+      "Use of resistant or tolerant rice varieties."
+    ],
+    "biological": [
+      "Conservation and encouragement of natural enemies like spiders, predatory beetles, and parasitoid wasps.",
+      "Application of biopesticides such as Bacillus thuringiensis (Bt) or entomopathogenic fungi."
+    ],
+    "chemical": [
+      "Application of appropriate insecticides based on scouting and established economic thresholds (ETL).",
+      "Use of seed treatments to protect young seedlings from early-season pests.",
+      "Rotation of insecticide modes of action to prevent or delay resistance."
+    ],
+    "notes": "Integrated Pest Management (IPM) is the recommended approach, combining multiple tactics for sustainable and effective control while minimizing environmental impact."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/rice/sheath_blight.json b/diseases_knowledge_base/rice/sheath_blight.json
new file mode 100644
index 0000000000000000000000000000000000000000..5334a4371f0d21a2e798a89f95fde86ddbd1f8fc
--- /dev/null
+++ b/diseases_knowledge_base/rice/sheath_blight.json
@@ -0,0 +1,140 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "rice.disease_fungal.sheath_blight",
+  "aliases": [
+    "banded leaf and sheath blight",
+    "oriental leaf and sheath blight"
+  ],
+  "crop": {
+    "common_name": "rice",
+    "scientific_name": "Oryza sativa",
+    "family": "Poaceae"
+  },
+  "condition": {
+    "common_name": "sheath blight",
+    "scientific_name": "Rhizoctonia solani",
+    "alt_names": [],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Basidiomycota",
+        "class": "Agaricomycetes",
+        "order": "Cantharellales",
+        "family": "Ceratobasidiaceae",
+        "genus": "Rhizoctonia",
+        "species": "solani"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "Sclerotia in soil and irrigation water",
+      "Plant-to-plant contact through mycelial growth",
+      "Infected crop debris"
+    ],
+    "overwintering": [
+      "As sclerotia in soil",
+      "As mycelium in infected crop residue (stubble)"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High nitrogen fertilization",
+      "Dense planting or high tiller density",
+      "High relative humidity",
+      "High temperatures",
+      "Closed crop canopy"
+    ],
+    "temp_c_day": [
+      28,
+      32
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 10
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Lesions are confined to the lower leaf sheaths, below the top 2-3 leaves.",
+    "moderate": "Lesions have spread vertically to the upper leaf sheaths, but have not reached the flag leaf sheath.",
+    "severe": "Lesions have reached and infected the flag leaf sheath and/or panicle, causing significant blighting.",
+    "notes": "Severity is often measured professionally by Relative Lesion Height (RLH), the ratio of maximum lesion height to plant height. This qualitative rubric approximates low, medium, and high RLH."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial lesions are oval, grayish-green, and water-soaked on the leaf sheath near the waterline.",
+      "Lesions enlarge to become grayish-white or tan in the center with a distinct, irregular, dark brown or purplish-brown border.",
+      "Lesions often merge, creating large, irregular patches with a characteristic 'snakeskin' or 'banded' pattern.",
+      "Infection can progress from the sheath to the leaf blade, causing similar lesions and eventual leaf death."
+    ],
+    "stems": [
+      "The primary site of infection is the leaf sheath, which wraps the stem (culm).",
+      "Infection progresses vertically up the tiller from one sheath to the next.",
+      "Severe infection of the sheaths can weaken the underlying culm, contributing to lodging."
+    ],
+    "fruit": [
+      "Infection of the flag leaf sheath can disrupt nutrient flow, leading to incomplete grain filling and 'chalky' grains.",
+      "In severe cases, the panicle can become directly infected, causing discoloration and sterility."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Affected tillers may die, creating patches of dead plants ('hotspots') in the field.",
+      "The disease typically spreads from plant to plant, creating expanding circular patches of infection."
+    ],
+    "signs_microscopic_or_visible": [
+      "White, web-like fungal strands (mycelium) may be visible on the lesion surface, especially under high humidity.",
+      "Small, brown to black, irregularly shaped sclerotia, resembling mustard seeds, may form on the surface of infected sheaths."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "bacterial leaf blight",
+      "condition_id": "rice.disease_bacterial.bacterial_leaf_blight",
+      "key_differences": [
+        "Sheath blight lesions are oval/elliptical on the sheath; bacterial blight lesions are wavy-margined, water-soaked stripes starting from leaf tips/margins.",
+        "Sheath blight starts near the waterline and moves up; bacterial blight starts at the leaf tip and moves down.",
+        "Sheath blight may show fungal mycelium or sclerotia; bacterial blight may produce milky bacterial ooze when cut leaves are placed in water."
+      ]
+    },
+    {
+      "condition_name": "leaf scald",
+      "condition_id": "rice.disease_fungal.leaf_scald",
+      "key_differences": [
+        "Sheath blight affects the sheath primarily; leaf scald is on the leaf blade.",
+        "Sheath blight lesions have a grayish-white center and brown border; leaf scald lesions have a distinct zonate or chevron ('V'-shaped) pattern of alternating light and dark brown bands.",
+        "Sheath blight progresses vertically up the tiller; leaf scald progresses from the leaf tip or margin inward."
+      ]
+    },
+    {
+      "condition_name": "blast",
+      "condition_id": "rice.disease_fungal.blast",
+      "key_differences": [
+        "Sheath blight lesions are large and banded on the sheath; leaf blast lesions are smaller, diamond-shaped with gray centers, and primarily on the leaf blade.",
+        "Sheath blight infection moves up from the waterline; blast can infect leaves, nodes (node blast), and the panicle base (neck blast), with neck blast being particularly distinct and damaging.",
+        "The 'snakeskin' pattern of coalesced sheath blight lesions is not present in blast."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use optimal plant spacing to improve air circulation and reduce humidity within the canopy.",
+      "Avoid excessive nitrogen fertilizer, which promotes lush, susceptible growth.",
+      "Plow under or remove infected crop residue after harvest to reduce sclerotia in the soil.",
+      "Plant less susceptible or resistant rice varieties."
+    ],
+    "biological": [
+      "Application of soil or foliar biocontrol agents like *Trichoderma* species or *Pseudomonas fluorescens* can suppress the pathogen."
+    ],
+    "chemical": [
+      "Apply fungicides from the strobilurin (e.g., azoxystrobin) or triazole (e.g., propiconazole) classes.",
+      "Timing is critical; applications are most effective between late booting and early heading stages."
+    ],
+    "notes": "An integrated pest management (IPM) approach combining resistant cultivars, cultural practices, and judicious fungicide use is the most effective and sustainable strategy."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/rice/stripes.json b/diseases_knowledge_base/rice/stripes.json
new file mode 100644
index 0000000000000000000000000000000000000000..0487ea40f1c60a283d259b5974fa5afb06c942f9
--- /dev/null
+++ b/diseases_knowledge_base/rice/stripes.json
@@ -0,0 +1,113 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "rice.unknown.stripes",
+  "aliases": [
+    "Rice striping",
+    "Chlorotic stripes on rice",
+    "Leaf striping"
+  ],
+  "crop": {
+    "common_name": "Rice",
+    "scientific_name": "Oryza sativa",
+    "family": "Poaceae"
+  },
+  "condition": {
+    "common_name": "Stripes",
+    "scientific_name": "",
+    "alt_names": [
+      "Striping",
+      "Chlorotic striping"
+    ],
+    "pathogen": {
+      "type": "unknown",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Nutrient imbalances (e.g., zinc, iron, magnesium deficiency)",
+      "Soil pH extremes affecting nutrient uptake",
+      "Possible viral infection",
+      "Genetic disorders or mutations"
+    ],
+    "temp_c_day": [],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of the leaf area on affected leaves shows distinct stripes.",
+    "moderate": "11-40% of the leaf area shows prominent, often coalescing stripes.",
+    "severe": ">40% of leaf area is affected, with widespread chlorosis or necrosis, potentially leading to stunting.",
+    "notes": "Severity is assessed on representative, symptomatic leaves. The percentage reflects the total surface area covered by stripes relative to the total leaf area."
+  },
+  "symptoms": {
+    "leaves": [
+      "Displays distinct, linear stripes running parallel to the leaf veins.",
+      "Stripes are typically chlorotic (yellow to whitish).",
+      "Less commonly, stripes can become necrotic (brown) in severe cases.",
+      "The pattern can be continuous lines or broken/dashed stripes.",
+      "Stripe width can be uniform or variable along the leaf blade.",
+      "Symptoms can appear on new growth (suggesting nutrient immobility) or older leaves.",
+      "Leaf tissue between the stripes may remain green or become pale green.",
+      "The overall leaf may appear pale with faint green stripes in some manifestations."
+    ],
+    "stems": [],
+    "fruit": [],
+    "roots": [],
+    "whole_plant": [
+      "Affected plants may exhibit stunting or reduced vigor if the condition is severe.",
+      "Tillering can be reduced compared to healthy plants."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Tungro",
+      "condition_id": "rice.virus.tungro",
+      "key_differences": [
+        "Tungro causes more mottled or blotchy yellow-to-orange discoloration, not sharply defined parallel stripes.",
+        "Tungro discoloration often starts from the leaf tip and progresses downwards, whereas stripes can appear anywhere.",
+        "Severe stunting and reduced tillering are hallmark symptoms of Tungro, often more pronounced than with striping."
+      ]
+    },
+    {
+      "condition_name": "Narrow Brown Leaf Spot",
+      "condition_id": "rice.fungus.narrow_brown_leaf_spot",
+      "key_differences": [
+        "This disease causes short, linear, necrotic (reddish-brown) lesions, not long chlorotic stripes.",
+        "Lesions are distinct, sunken, and clearly delimited, unlike the systemic discoloration of stripes.",
+        "The background leaf tissue around the spots remains green, whereas striping affects the entire leaf's color pattern."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Ensure balanced fertilization, paying close attention to micronutrients like zinc, iron, and magnesium.",
+      "Test soil pH and amend if it is outside the optimal range for rice (5.5-6.5).",
+      "Use high-quality, certified seed from reputable sources to avoid genetic or seed-borne issues.",
+      "Monitor fields for potential insect vectors that could transmit viruses."
+    ],
+    "biological": [],
+    "chemical": [
+      "If a nutrient deficiency is suspected, conduct a tissue analysis and apply a corrective foliar spray (e.g., zinc sulfate).",
+      "Avoid prophylactic application of pesticides or fungicides until the cause is identified."
+    ],
+    "notes": "Accurate diagnosis is critical. Submit plant and soil samples to a diagnostic laboratory to determine if the cause is nutritional, viral, genetic, or other before taking corrective action."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/rice/tungro.json b/diseases_knowledge_base/rice/tungro.json
new file mode 100644
index 0000000000000000000000000000000000000000..36226a7243ab950ed121531575601033228f5b24
--- /dev/null
+++ b/diseases_knowledge_base/rice/tungro.json
@@ -0,0 +1,146 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "rice.disease_viral.tungro",
+  "aliases": [
+    "rice tungro disease",
+    "RTD"
+  ],
+  "crop": {
+    "common_name": "rice",
+    "scientific_name": "Oryza sativa",
+    "family": "Poaceae"
+  },
+  "condition": {
+    "common_name": "tungro",
+    "scientific_name": "Rice tungro virus complex",
+    "alt_names": [
+      "penyakit merah",
+      "mentek"
+    ],
+    "pathogen": {
+      "type": "virus",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "Caulimoviridae; Secoviridae",
+        "genus": "Tungrovirus; Waikavirus",
+        "species": "Rice tungro bacilliform virus; Rice tungro spherical virus"
+      }
+    }
+  },
+  "issue_type": "disease_viral",
+  "transmission": {
+    "vectors": [
+      "Green leafhopper (Nephotettix virescens)",
+      "Nephotettix malayanus",
+      "Nephotettix nigropictus"
+    ],
+    "dispersal": [
+      "Insect vector movement between fields",
+      "Movement of infected seedlings"
+    ],
+    "overwintering": [
+      "Infected rice stubble and ratoons",
+      "Alternate weed hosts (e.g., Eleusine indica)",
+      "Survives in living insect vectors"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High population of green leafhopper vectors",
+      "Asynchronous planting in a region",
+      "Presence of infected stubble from previous crops",
+      "Cultivation of susceptible rice varieties"
+    ],
+    "temp_c_day": [
+      25,
+      32
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      70,
+      90
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Scattered individual plants show slight yellowing on younger leaves; stunting is not obvious.",
+    "moderate": "Distinct patches of yellowed or orange-colored, stunted plants are visible in the field; reduced tillering is apparent.",
+    "severe": "Widespread yellowing and severe stunting across large areas of the field; plants may die before maturity, panicles are small and sterile.",
+    "notes": "Severity is a combination of incidence (percentage of infected plants in a field) and symptom expression (degree of stunting and discoloration) on individual plants. Leaf wetness is not a primary driver for this vector-borne viral disease."
+  },
+  "symptoms": {
+    "leaves": [
+      "Yellow to orange-yellow discoloration, often starting from the leaf tip and margins.",
+      "Interveinal chlorosis on leaf blades.",
+      "Younger leaves are most affected by discoloration.",
+      "Leaves may have a slightly mottled or striped appearance.",
+      "Infected leaves are often shorter and more erect than healthy ones.",
+      "Older leaves can develop small, rust-colored spots."
+    ],
+    "stems": [
+      "Significant reduction in the number of tillers."
+    ],
+    "fruit": [
+      "Delayed or inhibited flowering.",
+      "Panicles are often small, sterile, and may not fully emerge from the sheath.",
+      "Grains are often partially filled, discolored, or absent."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Pronounced stunting is a primary and characteristic symptom.",
+      "Plants appear less vigorous and may die before reaching maturity.",
+      "Infection often occurs in circular or irregular patches in the field."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "bacterial_leaf_blight",
+      "condition_id": "rice.disease_bacterial.bacterial_leaf_blight",
+      "key_differences": [
+        "Tungro causes uniform yellow-orange discoloration, while BLB causes water-soaked streaks with wavy margins that turn yellow-gray.",
+        "Tungro causes severe, systemic stunting; stunting is less common or pronounced with BLB.",
+        "BLB lesions may ooze milky bacterial droplets in high humidity, which is absent in tungro.",
+        "Tungro symptoms are often more pronounced on younger leaves, while BLB can affect leaves of any age."
+      ]
+    },
+    {
+      "condition_name": "hispa",
+      "condition_id": "rice.pest.hispa",
+      "key_differences": [
+        "Hispa damage appears as distinct, parallel white streaks or blotches from larval mining, not the uniform yellowing of tungro.",
+        "The adult Hispa beetle (small, black, spiny) may be visible on leaves; tungro is a virus with an invisible pathogen.",
+        "Tungro causes severe stunting of the entire plant; Hispa damage is primarily on the leaves and does not cause systemic stunting."
+      ]
+    },
+    {
+      "condition_name": "stripes",
+      "condition_id": "rice.disease_viral.stripes",
+      "key_differences": [
+        "Tungro causes yellow-orange discoloration, while Rice Stripe Virus causes distinct, continuous chlorotic stripes along leaf veins.",
+        "Tungro-infected leaves tend to be short and stiff, whereas leaves with RSV can become twisted and droopy.",
+        "While both cause stunting, the specific leaf pattern (general discoloration vs. clear stripes) is the key differentiator."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Planting of resistant or tolerant rice varieties.",
+      "Synchronous planting across a large area to break the vector's life cycle.",
+      "Rogueing (removing and destroying) infected plants and weed hosts.",
+      "Plowing under infected rice stubble after harvest."
+    ],
+    "biological": [
+      "Conservation of natural enemies of leafhoppers, such as spiders, mirid bugs, and dragonflies."
+    ],
+    "chemical": [
+      "Application of systemic insecticides in the nursery or early in the main field to control the green leafhopper vector.",
+      "Seed treatment with appropriate insecticides."
+    ],
+    "notes": "Management is prophylactic and focuses on controlling the insect vector and reducing inoculum sources, as there is no direct chemical cure for the virus in infected plants."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/rubber/anthracnose.json b/diseases_knowledge_base/rubber/anthracnose.json
new file mode 100644
index 0000000000000000000000000000000000000000..bbf2e265581ea7368f209563927367f8ffcbf980
--- /dev/null
+++ b/diseases_knowledge_base/rubber/anthracnose.json
@@ -0,0 +1,118 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "rubber.disease_fungal.anthracnose",
+  "aliases": [
+    "rubber leaf fall",
+    "Colletotrichum leaf disease",
+    "shoot dieback"
+  ],
+  "crop": {
+    "common_name": "rubber",
+    "scientific_name": "Hevea brasiliensis",
+    "family": "Euphorbiaceae"
+  },
+  "condition": {
+    "common_name": "anthracnose",
+    "scientific_name": "Colletotrichum gloeosporioides",
+    "alt_names": [
+      "Colletotrichum acutatum"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Sordariomycetes",
+        "order": "Glomerellales",
+        "family": "Glomerellaceae",
+        "genus": "Colletotrichum",
+        "species": "gloeosporioides"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "rain splash",
+      "wind-driven rain",
+      "contaminated pruning tools",
+      "insects (mechanical)"
+    ],
+    "overwintering": [
+      "infected fallen leaves and plant debris",
+      "cankers on stems and twigs",
+      "dormant infections on mature leaves"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "prolonged leaf wetness",
+      "high relative humidity (>90%)",
+      "frequent rainfall",
+      "dense canopy with poor air circulation",
+      "presence of young, tender leaf flush"
+    ],
+    "temp_c_day": [
+      25,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      80,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 12
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area affected. A few scattered, small lesions on some leaves, no significant leaf distortion or defoliation.",
+    "moderate": "11-40% of leaf area affected. Lesions are numerous, may be coalescing. Noticeable leaf curling, distortion, and some premature leaf drop is visible.",
+    "severe": ">40% of leaf area affected. Extensive necrotic blotches cover leaves, leading to severe leaf distortion, withering, significant defoliation, and potential dieback of shoots.",
+    "notes": "Assessment should focus on the new flushes of leaves as they are most susceptible. Severity can also be gauged by the extent of defoliation in the canopy."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, water-soaked, dark green to black spots appear on young, tender leaves.",
+      "Lesions enlarge into circular or irregular shapes, often with a distinct dark brown or black border.",
+      "The center of older lesions becomes sunken and turns pale brown, tan, or grayish-white.",
+      "Lesions frequently start at the leaf tip or margins, causing puckering and distortion.",
+      "In severe infections, spots coalesce, forming large necrotic blotches.",
+      "Affected leaves curl, wither, and drop prematurely, causing 'leaf fall'.",
+      "On mature, hardened leaves, lesions are smaller, arrested, and may develop a 'shot-hole' appearance as the necrotic center falls out."
+    ],
+    "stems": [
+      "On young, green shoots, elongated, sunken, dark brown to black cankers can form.",
+      "Infection can girdle and kill young shoots, leading to 'dieback'."
+    ],
+    "fruit": [
+      "Sunken, dark, circular lesions can develop on seed pods (capsules).",
+      "Under humid conditions, pinkish-orange spore masses may become visible in the center of pod lesions."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Significant defoliation, particularly during wet seasons when new leaves are emerging.",
+      "Dieback of terminal branches can give the upper canopy a scorched or blighted appearance."
+    ],
+    "signs_microscopic_or_visible": [
+      "Under high humidity, tiny, pinkish-orange, gelatinous spore masses (acervuli) may erupt from the center of lesions."
+    ]
+  },
+  "lookalikes": [],
+  "management": {
+    "cultural": [
+      "Prune to improve air circulation and sunlight penetration, which speeds up leaf drying.",
+      "Remove and destroy fallen leaves and infected plant debris to reduce inoculum sources.",
+      "Avoid overhead irrigation to minimize the duration of leaf wetness.",
+      "Maintain balanced plant nutrition to improve plant vigor and resilience."
+    ],
+    "biological": [
+      "Application of bio-fungicides containing *Trichoderma* spp. or *Bacillus subtilis* can be used as a preventative measure to compete with the pathogen."
+    ],
+    "chemical": [
+      "Apply protective fungicides (e.g., mancozeb, chlorothalonil) before or during high-risk periods like the rainy season.",
+      "Systemic fungicides (e.g., strobilurins, triazoles) can be used for curative action but should be rotated to manage resistance."
+    ],
+    "notes": "An integrated approach is crucial. Fungicide applications should be timed to protect new leaf flushes, which are the most vulnerable to infection."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/rubber/healthy.json b/diseases_knowledge_base/rubber/healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..7a3893aa495b9e89713673ddfbff27362663b0b5
--- /dev/null
+++ b/diseases_knowledge_base/rubber/healthy.json
@@ -0,0 +1,124 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "rubber.healthy.healthy",
+  "aliases": [
+    "normal rubber plant",
+    "asymptomatic rubber",
+    "unaffected rubber"
+  ],
+  "crop": {
+    "common_name": "rubber",
+    "scientific_name": "Hevea brasiliensis",
+    "family": "Euphorbiaceae"
+  },
+  "condition": {
+    "common_name": "healthy",
+    "scientific_name": null,
+    "alt_names": [
+      "asymptomatic",
+      "normal"
+    ],
+    "pathogen": {
+      "type": "abiotic",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "healthy",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Optimal growing conditions",
+      "Absence of biotic and abiotic stressors",
+      "Adequate nutrition and water"
+    ],
+    "temp_c_day": [
+      25,
+      28
+    ],
+    "temp_c_night": [
+      20,
+      23
+    ],
+    "relative_humidity_pct": [
+      80,
+      95
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "No visible symptoms of disease, stress, or nutrient deficiency. Plant appears vigorous with normal coloration and turgor.",
+    "moderate": "N/A",
+    "severe": "N/A",
+    "notes": "For a healthy plant, severity is not applicable. The 'mild' category serves as a confirmation of the absence of any negative symptoms."
+  },
+  "symptoms": {
+    "leaves": [
+      "Leaves are trifoliate, composed of three distinct leaflets.",
+      "Mature leaflets are uniformly deep green with a glossy or waxy surface.",
+      "Leaf surfaces are smooth and free of spots, lesions, pustules, or discoloration.",
+      "Leaf margins are entire (smooth) and without necrosis or chlorosis.",
+      "Young, developing leaves (flushes) can be reddish, bronze, or pale green before maturing to dark green.",
+      "Leaves are turgid and well-formed, without distortion, curling, or wilting.",
+      "Petioles are firm, holding the leaflets in their characteristic orientation."
+    ],
+    "stems": [
+      "Bark on the trunk and branches is smooth, intact, and typically light grey to brownish.",
+      "Stems are firm and free from cankers, galls, cracks, or dieback.",
+      "On mature trees, tapping panels (if present) show clean cuts and healthy latex flow without discoloration."
+    ],
+    "fruit": [],
+    "roots": [],
+    "whole_plant": [
+      "Exhibits vigorous, upright growth with a dense, well-developed canopy.",
+      "Overall appearance is vital and robust."
+    ],
+    "signs_microscopic_or_visible": [
+      "Complete absence of any pathogen signs such as mycelia, fungal fruiting bodies, spores, or bacterial ooze."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "senescence or dry",
+      "condition_id": "rubber.abiotic.senescence_or_dry",
+      "key_differences": [
+        "Healthy leaves are uniformly green, whereas senescing leaves show a uniform, widespread yellowing (chlorosis), often starting with the oldest, lowest leaves.",
+        "Healthy leaves are turgid and firm; water-stressed (dry) leaves will appear wilted, limp, or have crispy, brown margins.",
+        "Healthy new growth is vibrant (often reddish or light green), while a chronically stressed plant may exhibit stunted new growth."
+      ]
+    },
+    {
+      "condition_name": "anthracnose",
+      "condition_id": "rubber.fungal.anthracnose",
+      "key_differences": [
+        "Healthy leaves have an unblemished surface, while anthracnose causes distinct, often dark brown or black, sunken lesions with defined borders.",
+        "Anthracnose lesions, particularly on young leaves, can cause significant distortion, curling, and blight; healthy leaves are symmetrical and well-formed.",
+        "Lesions from anthracnose may develop a 'shot-hole' appearance as the necrotic center falls out, which is absent on healthy leaves."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Maintain optimal growing conditions (light, water, humidity).",
+      "Ensure well-drained soil to prevent root rot.",
+      "Provide balanced fertilization to avoid nutrient deficiencies.",
+      "Prune to maintain good air circulation through the canopy.",
+      "Regularly monitor plants for early signs of pests or diseases."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "Management for a healthy plant is preventative, focusing on maintaining ideal cultural practices to minimize stress and prevent disease onset."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/rubber/leaf_spot_generic.json b/diseases_knowledge_base/rubber/leaf_spot_generic.json
new file mode 100644
index 0000000000000000000000000000000000000000..be66804195c6537d9dde22d0311bd94c4738a2a8
--- /dev/null
+++ b/diseases_knowledge_base/rubber/leaf_spot_generic.json
@@ -0,0 +1,138 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "rubber.disease_fungal.leaf_spot_generic",
+  "aliases": [
+    "Fungal leaf spot of rubber",
+    "Hevea leaf spot"
+  ],
+  "crop": {
+    "common_name": "rubber",
+    "scientific_name": "Hevea brasiliensis",
+    "family": "Euphorbiaceae"
+  },
+  "condition": {
+    "common_name": "leaf spot generic",
+    "scientific_name": "",
+    "alt_names": [
+      "Fungal leaf spot",
+      "Leaf blight"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "windborne spores",
+      "rain splash",
+      "contaminated tools"
+    ],
+    "overwintering": [
+      "infected leaf debris on the ground",
+      "dormant mycelium in old lesions on attached leaves"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "prolonged periods of high humidity (>85%)",
+      "frequent rainfall",
+      "extended leaf wetness",
+      "dense canopy with poor air circulation"
+    ],
+    "temp_c_day": [
+      25,
+      32
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      80,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 8
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area affected. A few scattered, discrete spots. No significant yellowing or defoliation.",
+    "moderate": "11-40% of leaf area affected. Numerous spots, some beginning to coalesce. Noticeable chlorosis (yellowing) around lesions.",
+    "severe": ">40% of leaf area affected. Large, coalesced lesions forming necrotic blight patches. Significant leaf yellowing and premature leaf drop (defoliation) is evident.",
+    "notes": "Severity is assessed on the most affected leaves. Defoliation is a key indicator of severe infection pressure."
+  },
+  "symptoms": {
+    "leaves": [
+      "Small, circular to slightly irregular spots appear on the leaf surface.",
+      "Lesions are initially pinpoint-sized and may be yellow-green or water-soaked.",
+      "Mature spots develop a tan, gray, or whitish center (necrotic tissue).",
+      "A distinct, dark brown or purplish-red border typically surrounds the necrotic center.",
+      "A diffuse yellow halo may be visible around the dark border.",
+      "Multiple spots can merge (coalesce) to form larger, irregular dead patches.",
+      "In severe cases, the entire leaf turns yellow (chlorosis) and drops prematurely.",
+      "Tiny black dots (fruiting bodies of the fungus) may be visible in the center of older lesions."
+    ],
+    "stems": [],
+    "fruit": [],
+    "roots": [],
+    "whole_plant": [
+      "Reduced plant vigor due to loss of photosynthetic area.",
+      "Significant defoliation, especially of lower and inner canopy leaves, during high-pressure periods."
+    ],
+    "signs_microscopic_or_visible": [
+      "Fungal fruiting bodies (e.g., pycnidia, acervuli) may appear as small black specks within the lesion center, often requiring a hand lens to see clearly."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "anthracnose",
+      "condition_id": "rubber.disease_fungal.anthracnose",
+      "key_differences": [
+        "Anthracnose lesions are often darker, more sunken, and may appear as irregular blotches starting from the leaf tip or margin.",
+        "Generic leaf spots are typically more circular and scattered more randomly across the leaf blade.",
+        "Anthracnose can cause significant distortion of young leaves and shoot dieback, which is less characteristic of a typical leaf spot disease."
+      ]
+    },
+    {
+      "condition_name": "senescence or dry",
+      "condition_id": "rubber.abiotic.senescence_or_dry",
+      "key_differences": [
+        "Senescence is a uniform yellowing of the entire leaf, usually starting with the oldest leaves, not discrete spots.",
+        "Drying or scorch appears as brown, crispy tissue at the leaf margins or tip, lacking the defined borders and halos of a fungal spot.",
+        "Fungal spots are distinct lesions that can appear on leaves of any age, whereas senescence is a natural aging process."
+      ]
+    },
+    {
+      "condition_name": "healthy",
+      "condition_id": "rubber.health.healthy",
+      "key_differences": [
+        "Healthy leaves have a uniform, deep green color and a smooth, intact surface.",
+        "There are no spots, lesions, discoloration, or signs of necrosis on a healthy leaf.",
+        "Healthy leaves are turgid and firmly attached to the stem, unlike diseased leaves which may be yellowing or dropping."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Improve air circulation within the canopy through selective pruning.",
+      "Practice field sanitation by removing and destroying fallen, infected leaves to reduce inoculum.",
+      "Ensure balanced plant nutrition to maintain tree vigor and resilience.",
+      "Avoid overhead irrigation that extends leaf wetness duration."
+    ],
+    "biological": [
+      "Application of microbial antagonists like *Trichoderma* spp. or *Bacillus subtilis* may help suppress pathogen populations."
+    ],
+    "chemical": [
+      "Application of protective fungicides (e.g., mancozeb, copper hydroxide) before or during high-risk weather conditions.",
+      "Use of systemic fungicides (e.g., strobilurins, triazoles) for curative action, following local resistance management guidelines."
+    ],
+    "notes": "Chemical control is most effective when integrated with cultural practices. Timing of applications to protect new leaf flushes is critical."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/rubber/senescence_or_dry.json b/diseases_knowledge_base/rubber/senescence_or_dry.json
new file mode 100644
index 0000000000000000000000000000000000000000..6a0fcce737e9b1deb79e1d4b6c4413e47f8a67d7
--- /dev/null
+++ b/diseases_knowledge_base/rubber/senescence_or_dry.json
@@ -0,0 +1,133 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "rubber.physiological_symptom.senescence_or_dry",
+  "aliases": [
+    "drought stress",
+    "leaf yellowing",
+    "seasonal leaf fall",
+    "wintering"
+  ],
+  "crop": {
+    "common_name": "rubber",
+    "scientific_name": "Hevea brasiliensis",
+    "family": "Euphorbiaceae"
+  },
+  "condition": {
+    "common_name": "Senescence or Dry",
+    "scientific_name": null,
+    "alt_names": [
+      "Water stress",
+      "Seasonal leaf drop",
+      "Abiotic stress"
+    ],
+    "pathogen": {
+      "type": "abiotic",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "physiological_symptom",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Prolonged dry season",
+      "Low soil moisture",
+      "High ambient temperatures",
+      "Low relative humidity",
+      "Poorly draining or sandy soils",
+      "Seasonal change leading to dormancy ('wintering')"
+    ],
+    "temp_c_day": [
+      30,
+      40
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      0,
+      50
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "A few scattered yellow or browning leaves, primarily older, lower leaves. No significant leaf drop or wilting.",
+    "moderate": "Widespread yellowing and browning across 25-50% of the canopy. Noticeable leaf drop and some wilting of younger leaves.",
+    "severe": "Majority (>50%) of the canopy is yellow, brown, or has dropped. Significant wilting and potential branch dieback is visible.",
+    "notes": "Severity is assessed based on the proportion of the canopy showing symptoms of uniform chlorosis, necrosis, and defoliation. This can be a natural seasonal process."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uniform yellowing (chlorosis) that often begins on older, lower leaves and progresses upwards.",
+      "Leaf margins turn brown, dry, and may curl upwards or inwards.",
+      "Leaves become brittle and desiccated.",
+      "Widespread, even leaf drop across the entire tree, which can be seasonal.",
+      "General wilting or drooping of leaves, especially during the hottest part of the day.",
+      "Overall leaf color fades from vibrant green to a dull pale green or yellow.",
+      "In severe drought, leaves may turn completely brown while still attached before falling."
+    ],
+    "stems": [
+      "Young, succulent stems and petioles may droop or wilt."
+    ],
+    "fruit": [],
+    "roots": [],
+    "whole_plant": [
+      "Canopy appears thin, sparse, or defoliated.",
+      "Reduced growth rate or stunted appearance.",
+      "In production trees, latex flow is significantly reduced."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "anthracnose",
+      "condition_id": "rubber.fungal.anthracnose",
+      "key_differences": [
+        "Anthracnose causes distinct, irregular lesions or spots with dark brown or black borders, not uniform yellowing.",
+        "Senescence affects the entire leaf lamina uniformly, while anthracnose lesions are localized.",
+        "Anthracnose lesions may contain tiny black fruiting bodies (acervuli), which are absent in physiological stress.",
+        "Leaf drop from anthracnose is often patchy, whereas seasonal senescence is more uniform across the canopy."
+      ]
+    },
+    {
+      "condition_name": "leaf_spot_generic",
+      "condition_id": "rubber.fungal.leaf_spot_generic",
+      "key_differences": [
+        "Leaf spots are discrete, often circular spots with defined margins, sometimes with a yellow halo.",
+        "Senescence is a generalized, even discoloration of the entire leaf, not localized spots.",
+        "Spots may be scattered randomly, whereas senescence typically starts on older leaves and progresses.",
+        "While spots can merge (coalesce), the initial symptom is clearly spots, unlike the diffuse yellowing of senescence."
+      ]
+    },
+    {
+      "condition_name": "healthy",
+      "condition_id": "rubber.healthy.healthy",
+      "key_differences": [
+        "Healthy leaves are uniformly deep green, turgid, and glossy.",
+        "A healthy canopy is dense and full with no widespread discoloration or leaf drop.",
+        "Senescent leaves are yellow or brown, wilted, and brittle, unlike firm healthy leaves."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Provide supplemental irrigation during extended dry periods.",
+      "Apply organic mulch around the tree base to conserve soil moisture and moderate soil temperature.",
+      "Ensure proper soil drainage to encourage deep root growth.",
+      "Avoid excessive nitrogen fertilization, which can increase water demand."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "Management is focused on mitigating water stress. Note that seasonal leaf drop ('wintering') is a natural physiological process for rubber trees and does not require intervention."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/soybean/healthy.json b/diseases_knowledge_base/soybean/healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..c9b0fab2460190ceb2e04a60da0f0e006e5275a0
--- /dev/null
+++ b/diseases_knowledge_base/soybean/healthy.json
@@ -0,0 +1,110 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "soybean.healthy.healthy",
+  "aliases": [
+    "normal soybean",
+    "asymptomatic plant"
+  ],
+  "crop": {
+    "common_name": "soybean",
+    "scientific_name": "Glycine max",
+    "family": "Fabaceae"
+  },
+  "condition": {
+    "common_name": "healthy",
+    "scientific_name": null,
+    "alt_names": [
+      "normal",
+      "asymptomatic"
+    ],
+    "pathogen": {
+      "type": "none",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "healthy",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Optimal growing conditions",
+      "Adequate sunlight (6-8 hours direct)",
+      "Sufficient water and nutrients",
+      "Well-drained soil",
+      "Lack of biotic or abiotic stress"
+    ],
+    "temp_c_day": [
+      25,
+      30
+    ],
+    "temp_c_night": [
+      18,
+      22
+    ],
+    "relative_humidity_pct": [
+      60,
+      75
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Not applicable. Plant is either healthy or shows symptoms.",
+    "moderate": "Not applicable.",
+    "severe": "Not applicable.",
+    "notes": "For a healthy plant, severity is zero. Any visible damage, discoloration, or malformation would classify it as unhealthy."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uniformly green color, appropriate for the variety and growth stage.",
+      "Trifoliate leaves are fully expanded, turgid, and well-formed.",
+      "Leaf surfaces are smooth, without spots, lesions, pustules, or discoloration.",
+      "Leaf margins are entire and show no signs of necrosis, chlorosis, or chewing damage.",
+      "Petioles are firm and hold leaves at a normal angle to the stem."
+    ],
+    "stems": [
+      "Stems are sturdy, upright, and green to light brown.",
+      "Fine hairs (trichomes) are typically present and evenly distributed.",
+      "Stems are free of cankers, lesions, discoloration, or breakage."
+    ],
+    "fruit": [
+      "Pods (if present) are green, turgid, and appear well-filled.",
+      "Pod surfaces are free of spots, lesions, or mold."
+    ],
+    "roots": [
+      "Root system is well-developed with a distinct taproot.",
+      "Roots are white to light tan in color.",
+      "Active nitrogen-fixing nodules are pink or reddish on the inside and firmly attached."
+    ],
+    "whole_plant": [
+      "Exhibits vigorous, upright growth appropriate for the developmental stage.",
+      "Canopy is dense and closed in later vegetative stages.",
+      "No signs of stunting, wilting, or general decline."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [],
+  "management": {
+    "cultural": [
+      "Planting certified, disease-free seed of a locally adapted variety.",
+      "Maintaining optimal soil fertility and pH based on soil tests.",
+      "Ensuring adequate soil drainage to prevent waterlogging.",
+      "Using appropriate plant spacing to promote good air circulation.",
+      "Practicing crop rotation with non-host crops (e.g., corn, wheat)."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "Management for a healthy plant focuses on preventative cultural practices that promote vigorous growth and minimize environmental and biological stress."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/squash/powdery_mildew.json b/diseases_knowledge_base/squash/powdery_mildew.json
new file mode 100644
index 0000000000000000000000000000000000000000..7b9d297fd7e08f8bc65b5f1fa095902011c443c7
--- /dev/null
+++ b/diseases_knowledge_base/squash/powdery_mildew.json
@@ -0,0 +1,118 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "squash.disease_fungal.powdery_mildew",
+  "aliases": [
+    "Squash PM",
+    "Cucurbit powdery mildew"
+  ],
+  "crop": {
+    "common_name": "Squash",
+    "scientific_name": "Cucurbita spp.",
+    "family": "Cucurbitaceae"
+  },
+  "condition": {
+    "common_name": "Powdery Mildew",
+    "scientific_name": "Podosphaera xanthii, Golovinomyces cucurbitacearum",
+    "alt_names": [],
+    "pathogen": {
+      "type": "fungus",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Leotiomycetes",
+        "order": "Erysiphales",
+        "family": "Erysiphaceae",
+        "genus": "Podosphaera",
+        "species": "xanthii"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "windborne conidia",
+      "air currents",
+      "human activity (tools, clothing)"
+    ],
+    "overwintering": [
+      "in crop debris",
+      "on weed hosts",
+      "as chasmothecia (sexual fruiting bodies) on plant tissue"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high humidity (not free water)",
+      "moderate temperatures",
+      "dense plant canopy with poor air circulation",
+      "low light intensity",
+      "shaded lower leaves"
+    ],
+    "temp_c_day": [
+      20,
+      27
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      50,
+      90
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of the upper leaf surface is covered with sparse, small white spots.",
+    "moderate": "11-40% of the leaf surface is covered; spots have coalesced into larger patches; some yellowing (chlorosis) may be visible beneath.",
+    "severe": ">40% of the leaf surface is covered; leaves are heavily coated in white mycelium, leading to significant yellowing, browning (necrosis), and premature leaf death.",
+    "notes": "Severity is assessed on the most affected mature leaves. The percentage represents the total area covered by visible white fungal growth (mycelium and conidia). Unlike many fungal diseases, powdery mildew does not require free water on the leaf surface for infection, hence the low leaf wetness threshold."
+  },
+  "symptoms": {
+    "leaves": [
+      "Starts as small, circular, white spots resembling talcum powder on upper leaf surfaces and petioles.",
+      "Spots expand and coalesce, eventually covering entire leaves in a white powdery mat.",
+      "Infected leaves may turn yellow (chlorotic), then brown, dry, and brittle (necrotic).",
+      "Powdery growth can appear on both upper and lower leaf surfaces, but is most common on top.",
+      "Older, lower leaves are typically the first to show symptoms.",
+      "Severe infections cause leaf distortion and premature defoliation."
+    ],
+    "stems": [
+      "White powdery patches can develop on petioles and stems.",
+      "Stems and petioles may become brittle under heavy infection."
+    ],
+    "fruit": [
+      "Fruit is rarely directly infected, but quality suffers due to plant stress.",
+      "Defoliation can expose fruit to sunscald, causing bleached, sunken areas.",
+      "Powdery growth may appear on fruit stalks (peduncles).",
+      "Infection can lead to smaller, misshapen, or poorly flavored fruit."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Reduced plant vigor and stunted growth.",
+      "Premature senescence of the entire plant in severe cases."
+    ],
+    "signs_microscopic_or_visible": [
+      "The primary sign is the white to grayish, powdery fungal growth (mycelium and conidia) which can be rubbed off.",
+      "Late in the season, tiny black specks (chasmothecia, the sexual fruiting bodies) may be visible embedded in the white mycelial mat."
+    ]
+  },
+  "lookalikes": [],
+  "management": {
+    "cultural": [
+      "Plant resistant or tolerant squash varieties.",
+      "Ensure good air circulation through proper plant spacing and pruning.",
+      "Avoid overhead irrigation to minimize humidity within the canopy.",
+      "Remove and destroy infected plant debris at the end of the season.",
+      "Provide adequate nutrition to maintain plant vigor."
+    ],
+    "biological": [
+      "Application of bio-fungicides containing Bacillus subtilis or Streptomyces lydicus.",
+      "Use of neem oil or horticultural oils, which can disrupt fungal growth."
+    ],
+    "chemical": [
+      "Application of registered fungicides, such as sulfur, potassium bicarbonate, or synthetic fungicides (e.g., strobilurins, DMIs).",
+      "Rotate fungicide chemical groups (FRAC codes) to prevent the development of resistance."
+    ],
+    "notes": "Early detection and intervention are crucial. Fungicide applications are preventative and most effective when started at the first sign of disease. Oils and sulfur can cause phytotoxicity in hot weather (>32\u00b0C)."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/strawberry/healthy.json b/diseases_knowledge_base/strawberry/healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..b20f833be2cf14b53e5e8d93c3d7d12541b7529b
--- /dev/null
+++ b/diseases_knowledge_base/strawberry/healthy.json
@@ -0,0 +1,104 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "strawberry.healthy.healthy",
+  "aliases": [
+    "normal",
+    "asymptomatic",
+    "uninfected"
+  ],
+  "crop": {
+    "common_name": "strawberry",
+    "scientific_name": "Fragaria \u00d7 ananassa",
+    "family": "Rosaceae"
+  },
+  "condition": {
+    "common_name": "healthy",
+    "scientific_name": null,
+    "alt_names": [],
+    "pathogen": {
+      "type": "none",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "healthy",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [],
+    "temp_c_day": [],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Not applicable; plant is healthy.",
+    "moderate": "Not applicable; plant is healthy.",
+    "severe": "Not applicable; plant is healthy.",
+    "notes": "Severity is not applicable for a healthy plant. Any visible symptoms would indicate a different condition."
+  },
+  "symptoms": {
+    "leaves": [
+      "Leaves are uniformly medium to dark green.",
+      "Leaflets are ternate (in groups of three) with well-defined serrated margins.",
+      "Leaf surface is smooth or slightly hairy, without any spots, lesions, or discoloration.",
+      "Foliage is turgid and not wilted or drooping.",
+      "No yellowing (chlorosis) or browning (necrosis) is present.",
+      "Petioles (leaf stalks) are green, firm, and support the leaves upright."
+    ],
+    "stems": [
+      "Crowns are firm, well-developed, and free of discoloration or rot.",
+      "Runners (stolons) are green to reddish-green and appear vigorous."
+    ],
+    "fruit": [
+      "Developing fruit is green and firm.",
+      "Ripe fruit is plump, glossy, and uniformly colored according to the cultivar (typically bright red).",
+      "Fruit is free from soft spots, mold, or sunken lesions."
+    ],
+    "roots": [
+      "Roots are numerous, fibrous, and white to light tan in color."
+    ],
+    "whole_plant": [
+      "Plant exhibits a vigorous, mounding growth habit.",
+      "No stunting, dieback, or overall decline is visible."
+    ],
+    "signs_microscopic_or_visible": [
+      "No visible signs of pathogens such as mycelium, fungal spores, bacterial ooze, or fruiting bodies."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "leaf scorch",
+      "condition_id": "strawberry.fungal.leaf_scorch",
+      "key_differences": [
+        "Healthy leaves have a uniform green color, whereas leaf scorch causes distinct, irregular purplish-to-brown blotches that may have a dark border.",
+        "Healthy leaf margins are intact and green, while leaf scorch lesions often start at the margins, causing them to dry out and curl upwards.",
+        "The tissue between the veins on leaves with advanced leaf scorch turns brown or V-shaped, a pattern absent in healthy leaves.",
+        "Healthy plants maintain green foliage throughout, while leaf scorch symptoms typically appear on older, outer leaves first."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified disease-free transplants.",
+      "Provide adequate plant spacing to promote air circulation and rapid drying of foliage.",
+      "Manage irrigation to avoid waterlogged soil and minimize leaf wetness duration.",
+      "Maintain balanced soil fertility based on soil tests.",
+      "Practice good field sanitation, removing dead leaves and plant debris."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "Management for a healthy plant focuses on preventative cultural practices that maintain vigor and reduce the likelihood of disease development."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/strawberry/leaf_scorch.json b/diseases_knowledge_base/strawberry/leaf_scorch.json
new file mode 100644
index 0000000000000000000000000000000000000000..8e3f1ebb0317622f2d9d30f29dcc7720ed38d2e3
--- /dev/null
+++ b/diseases_knowledge_base/strawberry/leaf_scorch.json
@@ -0,0 +1,124 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "strawberry.unknown.leaf_scorch",
+  "aliases": [
+    "strawberry leaf scorch",
+    "Diplocarpon leaf scorch"
+  ],
+  "crop": {
+    "common_name": "strawberry",
+    "scientific_name": "Fragaria \u00d7 ananassa",
+    "family": "Rosaceae"
+  },
+  "condition": {
+    "common_name": "leaf scorch",
+    "scientific_name": "Diplocarpon earlianum",
+    "alt_names": [
+      "purple leaf spot"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Leotiomycetes",
+        "order": "Helotiales",
+        "family": "Dermateaceae",
+        "genus": "Diplocarpon",
+        "species": "earlianum"
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "rain splash",
+      "wind-driven rain",
+      "overhead irrigation",
+      "contaminated tools"
+    ],
+    "overwintering": [
+      "infected leaf debris",
+      "lesions on living leaves and petioles"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "prolonged leaf wetness (>12 hours)",
+      "high relative humidity (>85%)",
+      "dense plant canopies with poor air circulation",
+      "use of overhead irrigation",
+      "susceptible cultivars"
+    ],
+    "temp_c_day": [
+      20,
+      25
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 12
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of total leaf area on the plant is affected; a few scattered lesions, primarily on older leaves.",
+    "moderate": "11-40% of leaf area is affected; multiple lesions are coalescing, with some yellowing or browning of leaf tissue between lesions.",
+    "severe": ">40% of leaf area is affected; extensive lesion coalescence, significant leaf necrosis, defoliation, and potential infection of petioles and calyces.",
+    "notes": "Severity is estimated as the percentage of the total photosynthetic area on an individual plant showing symptoms. It's a visual average across all leaves, not just one."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial symptoms are small, irregular, dark purple to reddish-purple spots on upper leaf surfaces.",
+      "Spots enlarge to 1-5 mm in diameter but remain uniformly purplish, lacking a tan or gray center.",
+      "Multiple spots may merge (coalesce) to form large, irregular, V-shaped blotches, often starting at the leaf margin.",
+      "Leaf tissue between the purple blotches may turn yellow, then brown.",
+      "In severe cases, entire leaflets dry up, curl upwards at the edges, and appear scorched or burnt.",
+      "Tiny, black, glistening fungal fruiting bodies (acervuli) may be visible within older lesions, sometimes requiring magnification."
+    ],
+    "stems": [
+      "Elongated, purplish lesions can develop on petioles (leaf stalks) and runners."
+    ],
+    "fruit": [
+      "The calyx (leafy cap) can become infected, showing purplish-brown lesions that cause it to dry out and detract from fruit appearance."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "In chronic, severe infections, plants may show reduced vigor and stunted growth."
+    ],
+    "signs_microscopic_or_visible": [
+      "Presence of tiny, black, glistening acervuli (fungal fruiting bodies) within the center of older lesions."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "healthy",
+      "condition_id": "strawberry.healthy.healthy",
+      "key_differences": [
+        "Healthy leaves are uniformly green and show no signs of purple, red, or brown spots.",
+        "The margins of healthy leaves are green and intact, not curled, dry, or scorched-looking.",
+        "The surface of a healthy leaf is smooth and free of lesions or any visible fungal structures."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant resistant or tolerant strawberry cultivars.",
+      "Ensure proper plant spacing to promote good air circulation and rapid leaf drying.",
+      "Use drip or furrow irrigation to keep foliage dry; avoid overhead sprinklers.",
+      "Remove and destroy infected leaves and plant debris after harvest to reduce overwintering inoculum.",
+      "Practice crop rotation if possible."
+    ],
+    "biological": [
+      "Some bio-fungicides containing strains of *Bacillus* may offer partial suppression when used preventatively."
+    ],
+    "chemical": [
+      "Apply preventative fungicides during periods of high risk (warm, wet weather).",
+      "Rotate fungicides with different modes of action (FRAC groups) to prevent resistance.",
+      "Ensure thorough spray coverage of all plant surfaces, especially the foliage."
+    ],
+    "notes": "An integrated management approach combining cultural practices with timely fungicide applications is most effective for controlling leaf scorch."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/sunflower/alternaria_leaf_spot.json b/diseases_knowledge_base/sunflower/alternaria_leaf_spot.json
new file mode 100644
index 0000000000000000000000000000000000000000..e78457677f4a373280478f16f052fa3e281e60d1
--- /dev/null
+++ b/diseases_knowledge_base/sunflower/alternaria_leaf_spot.json
@@ -0,0 +1,137 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "sunflower.disease_fungal.alternaria_leaf_spot",
+  "aliases": [
+    "alternaria leaf blight",
+    "alternaria blight",
+    "alternaria spot"
+  ],
+  "crop": {
+    "common_name": "sunflower",
+    "scientific_name": "Helianthus annuus",
+    "family": "Asteraceae"
+  },
+  "condition": {
+    "common_name": "alternaria leaf spot",
+    "scientific_name": "Alternaria helianthi",
+    "alt_names": [
+      "alternaria leaf blight"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Pleosporales",
+        "family": "Pleosporaceae",
+        "genus": "Alternaria",
+        "species": "helianthi"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "wind",
+      "rain splash",
+      "contaminated seed",
+      "infected crop debris"
+    ],
+    "overwintering": [
+      "infected crop residue",
+      "on or in seeds",
+      "on volunteer sunflowers"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high humidity",
+      "prolonged leaf wetness",
+      "warm temperatures",
+      "dense plant canopy",
+      "poor air circulation"
+    ],
+    "temp_c_day": [
+      25,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      80,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 8
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-5% of leaf area affected; few, scattered lesions, primarily on lower leaves.",
+    "moderate": "6-25% of leaf area affected; multiple lesions on lower and mid-canopy leaves, some lesions may be coalescing.",
+    "severe": ">25% of leaf area affected; extensive lesion coverage and coalescence, significant defoliation of lower leaves, lesions present on upper leaves, stems, or head.",
+    "notes": "Severity is assessed as the percentage of photosynthetic area lost to lesions on the most affected leaves, typically starting from the plant's base."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial small, circular, dark green to black water-soaked spots.",
+      "Lesions enlarge to become circular to angular, dark brown to black, and necrotic, often 0.5 to 2.5 cm in diameter.",
+      "Mature lesions frequently display a characteristic 'target spot' or 'bull's-eye' pattern of concentric rings.",
+      "A distinct, chlorotic (yellow) halo often surrounds the necrotic lesion.",
+      "In severe infections, multiple lesions coalesce, causing large blighted areas.",
+      "Affected leaves become brittle, wither, and drop prematurely, starting from the bottom of the plant."
+    ],
+    "stems": [
+      "Elongated, dark brown or black streaks or sunken lesions can appear on stems and petioles.",
+      "Severe stem lesions may girdle the plant, causing wilting and lodging."
+    ],
+    "fruit": [
+      "Dark, sunken lesions can develop on the back of the flower head (receptacle).",
+      "Infected seeds may be discolored, shriveled, or show poor development."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Stunted growth if infection occurs early and is severe.",
+      "Progressive defoliation from the bottom of the plant upwards."
+    ],
+    "signs_microscopic_or_visible": [
+      "Under high humidity, a dark, velvety or fuzzy fungal growth (conidia) may be visible in the center of older lesions."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "downy mildew",
+      "condition_id": "sunflower.disease_oomycete.downy_mildew",
+      "key_differences": [
+        "Downy mildew lesions are angular and vein-limited, appearing as pale green or yellow patches on the upper leaf surface, not circular 'target spots'.",
+        "A white to purplish downy growth is visible on the *underside* of downy mildew lesions, whereas Alternaria's fungal growth is dark and on the lesion surface.",
+        "Systemic downy mildew causes severe stunting and a thickened, upright leaf posture not typical of Alternaria."
+      ]
+    },
+    {
+      "condition_name": "powdery mildew",
+      "condition_id": "sunflower.disease_fungal.powdery_mildew",
+      "key_differences": [
+        "Powdery mildew presents as white, superficial, powdery patches that can be rubbed off, unlike Alternaria's embedded, necrotic tissue.",
+        "Alternaria causes distinct, dark, circular lesions with yellow halos, not a diffuse white coating.",
+        "Powdery mildew typically appears on upper leaf surfaces in drier conditions, while Alternaria thrives in high humidity and causes tissue death."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified disease-free seed.",
+      "Rotate crops with non-host plants for at least 2-3 years.",
+      "Manage crop residue by tillage to encourage decomposition.",
+      "Optimize plant spacing and row orientation to improve air circulation and reduce leaf wetness duration.",
+      "Control volunteer and wild sunflowers which can act as a disease reservoir."
+    ],
+    "biological": [
+      "Use of bio-fungicides containing strains of Bacillus or Trichoderma may offer some suppression."
+    ],
+    "chemical": [
+      "Apply foliar fungicides (e.g., strobilurins, triazoles) preventatively or at first sign of disease, especially during flowering stages if conditions are favorable for disease.",
+      "Seed treatments with appropriate fungicides can reduce seed-borne inoculum."
+    ],
+    "notes": "An integrated approach combining cultural practices with timely fungicide applications is most effective for managing Alternaria leaf spot."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/sunflower/downy_mildew.json b/diseases_knowledge_base/sunflower/downy_mildew.json
new file mode 100644
index 0000000000000000000000000000000000000000..89a774a2882e790b955df71436901538620bedec
--- /dev/null
+++ b/diseases_knowledge_base/sunflower/downy_mildew.json
@@ -0,0 +1,143 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "sunflower.disease_fungal.downy_mildew",
+  "aliases": [
+    "sunflower downy mildew"
+  ],
+  "crop": {
+    "common_name": "sunflower",
+    "scientific_name": "Helianthus annuus",
+    "family": "Asteraceae"
+  },
+  "condition": {
+    "common_name": "downy mildew",
+    "scientific_name": "Plasmopara halstedii",
+    "alt_names": [],
+    "pathogen": {
+      "type": "disease_oomycete",
+      "taxonomy": {
+        "kingdom": "Stramenopila",
+        "phylum": "Oomycota",
+        "class": "Oomycetes",
+        "order": "Peronosporales",
+        "family": "Peronosporaceae",
+        "genus": "Plasmopara",
+        "species": "P. halstedii"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "water_splash",
+      "wind_driven_rain",
+      "contaminated_seed",
+      "contaminated_soil"
+    ],
+    "overwintering": [
+      "oospores_in_soil",
+      "mycelium_in_infected_seed",
+      "infected_plant_debris"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high_soil_moisture_at_planting",
+      "cool_temperatures_post-emergence",
+      "prolonged_leaf_wetness",
+      "high_relative_humidity",
+      "poorly_drained_soils"
+    ],
+    "temp_c_day": [
+      15,
+      22
+    ],
+    "temp_c_night": [
+      10,
+      18
+    ],
+    "relative_humidity_pct": [
+      90,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 4
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of total plant leaf area showing symptoms (chlorosis or sporulation).",
+    "moderate": "11-40% of total plant leaf area affected; some stunting may be visible.",
+    "severe": ">40% of leaf area affected; significant stunting, plant may be dying or dead.",
+    "notes": "Severity is assessed based on the percentage of symptomatic leaf area across the entire plant. Stunting is a key indicator of systemic infection and high severity, even if leaf area affected is moderate."
+  },
+  "symptoms": {
+    "leaves": [
+      "Pale green or yellowish mosaic-like blotches on upper leaf surfaces, often bounded by major veins.",
+      "Lesions are frequently located along the midrib of young leaves.",
+      "White, cottony sporulation is visible on the underside of leaves, directly opposite the upper-surface blotches.",
+      "In systemically infected plants, chlorosis extends from the petiole into the leaf blade.",
+      "Symptomatic leaves may feel thickened or leathery."
+    ],
+    "stems": [
+      "Significant stunting (dwarfing) of the plant is a primary symptom of systemic infection.",
+      "The stem may appear thicker than normal relative to the plant's height."
+    ],
+    "fruit": [],
+    "roots": [
+      "Root system may be underdeveloped in systemically infected plants."
+    ],
+    "whole_plant": [
+      "Stunted, 'dwarfed' appearance compared to healthy neighboring plants.",
+      "The head of systemically infected plants often faces directly upright ('sky-pointing') instead of following the sun."
+    ],
+    "signs_microscopic_or_visible": [
+      "White, downy fungal-like growth (sporangiophores) on the lower leaf surface, especially in humid conditions or early morning."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "powdery mildew",
+      "condition_id": "sunflower.disease_fungal.powdery_mildew",
+      "key_differences": [
+        "Powdery mildew appears as white, dusty patches primarily on the *upper* leaf surface, while downy mildew sporulation is on the *lower* surface.",
+        "Downy mildew causes distinct, vein-limited chlorotic spots on the upper leaf surface; powdery mildew growth is more superficial and widespread.",
+        "Powdery mildew does not typically cause systemic stunting or 'sky-pointing' heads."
+      ]
+    },
+    {
+      "condition_name": "alternaria leaf spot",
+      "condition_id": "sunflower.disease_fungal.alternaria_leaf_spot",
+      "key_differences": [
+        "Alternaria spots are circular to irregular, dark brown to black, and often have a 'target-like' concentric ring pattern.",
+        "Downy mildew spots are pale green or yellow and angular, bounded by leaf veins.",
+        "Alternaria does not produce white, downy growth on the leaf underside."
+      ]
+    },
+    {
+      "condition_name": "wilted",
+      "condition_id": "sunflower.physiological_symptom.wilted",
+      "key_differences": [
+        "Wilted plants show drooping leaves and stems due to water stress, which can be temporary.",
+        "Downy mildew-stunted plants are rigid and short, not limp or drooping (unless also water-stressed).",
+        "Wilted plants lack the characteristic chlorotic leaf spots and white sporulation of downy mildew."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use resistant cultivars.",
+      "Plant certified, disease-free seed.",
+      "Improve soil drainage to avoid waterlogging.",
+      "Practice crop rotation with non-host plants (e.g., cereals, legumes).",
+      "Remove and destroy infected plant debris after harvest."
+    ],
+    "biological": [
+      "Some soil microbe-based products may offer suppression, but efficacy varies and is not a primary control method."
+    ],
+    "chemical": [
+      "Fungicide seed treatments (e.g., metalaxyl, mefenoxam) are highly effective for preventing systemic infection.",
+      "Foliar fungicides may be used to manage secondary, localized infections, but are ineffective against established systemic infections."
+    ],
+    "notes": "Management relies heavily on preventative measures like resistant varieties and seed treatments, as systemic infections cannot be cured once established."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/sunflower/growth_stage_earlybloom.json b/diseases_knowledge_base/sunflower/growth_stage_earlybloom.json
new file mode 100644
index 0000000000000000000000000000000000000000..ca3e8afd18058c93fe6abc2eca6252fbda82bc4b
--- /dev/null
+++ b/diseases_knowledge_base/sunflower/growth_stage_earlybloom.json
@@ -0,0 +1,97 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "sunflower.growth_stage.growth_stage_earlybloom",
+  "aliases": [
+    "R5.1",
+    "Beginning of flowering",
+    "First anthesis"
+  ],
+  "crop": {
+    "common_name": "sunflower",
+    "scientific_name": "Helianthus annuus",
+    "family": "Asteraceae"
+  },
+  "condition": {
+    "common_name": "Early Bloom",
+    "scientific_name": null,
+    "alt_names": [
+      "R5.1",
+      "Beginning of flowering"
+    ],
+    "pathogen": {
+      "type": "abiotic",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "growth_stage",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [],
+    "temp_c_day": [],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "The first few rows of disk florets have opened (anthesis) on the outer edge of the head.",
+    "moderate": "Flowering has progressed inwards, with approximately 10-25% of the disk florets on the head open.",
+    "severe": "Flowering is well-established, with up to 50% of the disk florets open, nearing the mid-bloom (R5.5) stage.",
+    "notes": "Severity describes the progression of flowering across the flower head, defined by the percentage of disk florets that have completed or are in anthesis."
+  },
+  "symptoms": {
+    "leaves": [
+      "Upper leaves are fully expanded and appear healthy green.",
+      "Lower leaves may begin to naturally senesce (yellow and dry up)."
+    ],
+    "stems": [
+      "Stem elongation is complete or nearly complete.",
+      "The stem is firm and supports the fully-formed flower head."
+    ],
+    "fruit": [
+      "This structure is the flower head, not a fruit at this stage.",
+      "The large, terminal flower head is fully formed and faces east.",
+      "The outer ray petals ('yellow petals') are fully unfurled, horizontal, and brightly colored.",
+      "The first, outermost ring of central disk florets has opened, revealing stamens and pollen.",
+      "Disk florets further towards the center remain closed and appear dark (e.g., purple, brown).",
+      "The back of the head (bracts) is green and appears healthy."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "The plant has reached its maximum or near-maximum height.",
+      "The single, large flower head is the dominant feature at the top of the plant."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible yellow pollen is present on the anthers of the open disk florets."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Wilted",
+      "condition_id": "sunflower.condition.wilted",
+      "key_differences": [
+        "In a wilted plant, the large leaves and ray petals will be drooping, limp, and flaccid.",
+        "The peduncle (neck) supporting the flower head may bend or droop from water stress, which is not a normal feature of the bloom stage.",
+        "Wilting affects the entire plant's turgor, whereas early bloom is a specific developmental stage of a healthy plant."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [],
+    "biological": [],
+    "chemical": [],
+    "notes": "This is a critical developmental stage, not a condition to be managed. It is the target window for ensuring pollination and for protective fungicide applications against head diseases (e.g., Sclerotinia head rot, Rhizopus head rot). Maintaining adequate soil moisture is crucial to prevent yield loss from water stress during this period."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/sunflower/growth_stage_maturebud.json b/diseases_knowledge_base/sunflower/growth_stage_maturebud.json
new file mode 100644
index 0000000000000000000000000000000000000000..b0735d6608ac75146217e0254890bf8a6e6df377
--- /dev/null
+++ b/diseases_knowledge_base/sunflower/growth_stage_maturebud.json
@@ -0,0 +1,91 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "sunflower.growth_stage.growth_stage_maturebud",
+  "aliases": [
+    "R4 stage",
+    "Pre-bloom",
+    "Button stage"
+  ],
+  "crop": {
+    "common_name": "Sunflower",
+    "scientific_name": "Helianthus annuus",
+    "family": "Asteraceae"
+  },
+  "condition": {
+    "common_name": "Mature Bud",
+    "scientific_name": null,
+    "alt_names": [
+      "R4",
+      "Immature flower"
+    ],
+    "pathogen": {
+      "type": "Physiological",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "growth_stage",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [],
+    "temp_c_day": [],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Not applicable. Stage is either present or not.",
+    "moderate": "Not applicable.",
+    "severe": "Not applicable.",
+    "notes": "Severity is not applicable to a growth stage. This rubric is used to confirm the presence of the 'Mature Bud' (R4) stage."
+  },
+  "symptoms": {
+    "leaves": [
+      "Upper leaves are fully expanded.",
+      "Leaves immediately below the bud may appear to cup around it."
+    ],
+    "stems": [
+      "Stem has reached near-maximum height.",
+      "Peduncle (flower stalk) is visibly elongating, separating the bud from the uppermost leaves."
+    ],
+    "fruit": [
+      "The terminal flower bud is fully formed but remains completely closed.",
+      "The bud is large, typically greater than 2 cm in diameter.",
+      "Green, pointed bracts are tightly layered, completely enclosing the developing flower parts.",
+      "The overall shape of the bud is globe-like or resembles a small artichoke.",
+      "The face of the bud is still flat or slightly convex.",
+      "No yellow ray petals are visible."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Plant is tall and robust, in the final vegetative stage before flowering.",
+      "The large, closed terminal bud is the dominant feature at the top of the plant."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [],
+  "management": {
+    "cultural": [
+      "Ensure adequate and consistent soil moisture as water demand is very high.",
+      "Monitor for insect pests that target developing heads, such as head-clipping weevils or lygus bugs.",
+      "Avoid nutrient deficiencies, especially boron, which is critical for flower development."
+    ],
+    "biological": [],
+    "chemical": [
+      "Consider a preventative fungicide application for diseases like Sclerotinia head rot or Phomopsis if conditions are highly favorable for infection, following pre-bloom application guidelines."
+    ],
+    "notes": "Management at this stage is critical for protecting the yield potential stored in the developing head."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/sunflower/growth_stage_youngbud.json b/diseases_knowledge_base/sunflower/growth_stage_youngbud.json
new file mode 100644
index 0000000000000000000000000000000000000000..0fe2e98c44e19b87ca2421cc13a1247a5d036ef5
--- /dev/null
+++ b/diseases_knowledge_base/sunflower/growth_stage_youngbud.json
@@ -0,0 +1,100 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "sunflower.growth_stage.growth_stage_youngbud",
+  "aliases": [
+    "R2 stage",
+    "immature bud",
+    "button stage"
+  ],
+  "crop": {
+    "common_name": "sunflower",
+    "scientific_name": "Helianthus annuus",
+    "family": "Asteraceae"
+  },
+  "condition": {
+    "common_name": "Young Bud",
+    "scientific_name": "",
+    "alt_names": [
+      "R2 Stage",
+      "Immature Bud Stage"
+    ],
+    "pathogen": {
+      "type": "abiotic",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "growth_stage",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [],
+    "temp_c_day": [],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Bud is just visible between the uppermost leaves, resembling a small, multi-pointed star.",
+    "moderate": "Bud has clearly emerged from the whorl of leaves, is still small (<2 cm from center to bract tip), and pointed.",
+    "severe": "Bud is well-formed and rounded, but bracts are still tightly closed and the head has not yet begun to bend or face east.",
+    "notes": "Severity describes the progression *within* the R2 stage, from initial emergence (mild) to just before the R3 (mature bud) stage begins (severe). This is a measure of development, not damage."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uppermost leaves are unfolding to reveal the floral bud at the plant's apex.",
+      "Leaves below the bud are fully expanded, green, and turgid in a healthy plant."
+    ],
+    "stems": [
+      "Main stem is sturdy and has reached or is near its maximum height.",
+      "The top of the stem, or peduncle, is still straight and holding the bud upright."
+    ],
+    "fruit": [
+      "No fruit (achenes) or seeds are present.",
+      "No ray flowers (petals) or disk flowers are visible."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "A single, small, star-shaped floral bud is visible at the top of the plant.",
+      "The bud is enclosed by immature, green, tightly-packed bracts.",
+      "The bud is less than 2 cm as measured from the center to the tip of the surrounding bracts.",
+      "The plant is in a rapid vegetative growth phase."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Wilted",
+      "condition_id": "sunflower.disorder.wilted",
+      "key_differences": [
+        "Wilted plants have drooping, flaccid leaves due to water stress, which is distinct from the turgid leaves of a healthy plant.",
+        "The entire top of the plant, including the bud, may hang limply, whereas a healthy young bud is held upright.",
+        "Wilting is a stress condition, not a normal developmental stage."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Ensure adequate and consistent soil moisture as water demand is very high during bud development.",
+      "Complete any final nitrogen fertilizer applications before this stage to avoid delaying maturity.",
+      "Monitor for pests such as sunflower moth, which may lay eggs on developing buds."
+    ],
+    "biological": [],
+    "chemical": [
+      "This is a key window for applying fungicides to protect against head and foliar diseases if conditions are favorable for infection.",
+      "Avoid post-emergent herbicide applications as the plant is extremely sensitive to injury at this stage."
+    ],
+    "notes": "Management at the R2 stage focuses on protecting the developing head and ensuring the plant has sufficient resources (water, nutrients) to maximize seed set and yield potential."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/sunflower/healthy.json b/diseases_knowledge_base/sunflower/healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..cc5e4d3cc0f9b4143d096a28bf5bc4ac4dab4575
--- /dev/null
+++ b/diseases_knowledge_base/sunflower/healthy.json
@@ -0,0 +1,116 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "sunflower.healthy.healthy",
+  "aliases": [
+    "normal",
+    "asymptomatic",
+    "no disease"
+  ],
+  "crop": {
+    "common_name": "sunflower",
+    "scientific_name": "Helianthus annuus",
+    "family": "Asteraceae"
+  },
+  "condition": {
+    "common_name": "Healthy",
+    "scientific_name": null,
+    "alt_names": [],
+    "pathogen": {
+      "type": "none",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "healthy",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [],
+    "temp_c_day": [],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "No visible symptoms of stress or disease.",
+    "moderate": "Not applicable.",
+    "severe": "Not applicable.",
+    "notes": "This is a binary state; the plant is either healthy or it is not. Any deviation from the 'mild' description would be classified under a different condition (e.g., a specific disease or stressor)."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uniformly green color, varying from light to dark green depending on age and variety.",
+      "Turgid, firm, and appropriately expanded for the growth stage.",
+      "Absence of spots, lesions, chlorosis, necrosis, or pustules.",
+      "Surfaces are clean, without any powdery, sooty, or fuzzy growth.",
+      "Leaf margins are intact and show no signs of scorching or irregular patterns."
+    ],
+    "stems": [
+      "Sturdy, erect, and capable of supporting the leaves and head.",
+      "Typically green to light-green and may be covered in coarse hairs (trichomes).",
+      "No cankers, galls, streaks, or discoloration."
+    ],
+    "fruit": [
+      "The developing head (capitulum) is symmetrical and well-formed.",
+      "Bracts surrounding the head are green and show no signs of necrosis or spotting.",
+      "Florets appear vibrant and normal for the specific growth stage (e.g., yellow ray florets, disc florets not discolored)."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Exhibits vigorous growth appropriate for its age and variety.",
+      "Maintains an upright, turgid posture without drooping or wilting."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "wilted",
+      "condition_id": "sunflower.abiotic.wilted",
+      "key_differences": [
+        "Healthy leaves are turgid and held upright or outwards; wilted leaves are limp, drooping, and may appear flaccid.",
+        "The neck (peduncle) of a healthy plant is strong and supports the head; in a wilted plant, it may bend or droop significantly.",
+        "Wilting is a systemic response to water stress, affecting the entire plant's posture, whereas a healthy plant is uniformly erect."
+      ]
+    },
+    {
+      "condition_name": "powdery_mildew",
+      "condition_id": "sunflower.fungal.powdery_mildew",
+      "key_differences": [
+        "Healthy leaves have a clean, uniform green surface; powdery mildew presents as distinct white, talc-like patches on leaf surfaces.",
+        "The white mycelial growth of powdery mildew can often be wiped off, revealing the green leaf tissue underneath, which is not a feature of a healthy leaf.",
+        "A healthy plant has no surface growth, whereas powdery mildew is a clear sign (fungal growth) on the plant."
+      ]
+    },
+    {
+      "condition_name": "alternaria_leaf_spot",
+      "condition_id": "sunflower.fungal.alternaria_leaf_spot",
+      "key_differences": [
+        "Healthy leaves are uniformly green and unblemished; Alternaria causes distinct dark brown to black circular spots.",
+        "Spots from Alternaria often have a characteristic 'target-like' or zonate pattern, which is completely absent on healthy leaves.",
+        "Affected leaves may show yellow halos (chlorosis) around the spots, while healthy leaves maintain a consistent green color."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Maintain optimal soil moisture through consistent and appropriate irrigation.",
+      "Ensure adequate plant spacing to promote good air circulation and light penetration.",
+      "Provide balanced nutrition based on soil tests to support vigorous growth.",
+      "Practice crop rotation to avoid soil-borne pathogen buildup."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "Management for a healthy plant focuses on preventative care and maintaining optimal growing conditions to minimize stress and prevent disease onset."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/sunflower/powdery_mildew.json b/diseases_knowledge_base/sunflower/powdery_mildew.json
new file mode 100644
index 0000000000000000000000000000000000000000..e4b92fb881c24f06d5f60f516a4720d04ba9fed6
--- /dev/null
+++ b/diseases_knowledge_base/sunflower/powdery_mildew.json
@@ -0,0 +1,129 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "sunflower.disease_fungal.powdery_mildew",
+  "aliases": [
+    "sunflower powdery mildew"
+  ],
+  "crop": {
+    "common_name": "sunflower",
+    "scientific_name": "Helianthus annuus",
+    "family": "Asteraceae"
+  },
+  "condition": {
+    "common_name": "powdery mildew",
+    "scientific_name": "Golovinomyces cichoracearum",
+    "alt_names": [],
+    "pathogen": {
+      "type": "fungus",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Leotiomycetes",
+        "order": "Erysiphales",
+        "family": "Erysiphaceae",
+        "genus": "Golovinomyces",
+        "species": "cichoracearum"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "Wind-dispersed conidia"
+    ],
+    "overwintering": [
+      "Infected plant debris",
+      "On volunteer sunflowers or alternate weed hosts",
+      "As chasmothecia (sexual fruiting bodies) on plant residue"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High relative humidity (without free water on leaves)",
+      "Moderate temperatures",
+      "Dense plant canopies with poor air circulation",
+      "Shaded conditions",
+      "Excessive nitrogen fertilization"
+    ],
+    "temp_c_day": [
+      20,
+      26
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      70,
+      95
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of the upper leaf surface is covered by sparse, white mycelial colonies.",
+    "moderate": "11-40% of the upper leaf surface is covered; colonies are larger and beginning to coalesce.",
+    "severe": ">40% of the upper leaf surface is covered by a dense mat of white mycelium, often accompanied by underlying leaf chlorosis or necrosis.",
+    "notes": "Severity is typically assessed on the most affected leaves, which are usually in the lower to mid-canopy. The percentage refers to the area of the leaf's upper surface obscured by the white fungal growth."
+  },
+  "symptoms": {
+    "leaves": [
+      "Begins as small, circular, white spots with a talcum-powder-like appearance on upper leaf surfaces.",
+      "Spots expand and merge (coalesce) to form a dense, white-to-light-gray mat of mycelium.",
+      "Symptoms are most prominent on the upper leaf surface, but can appear on the lower surface in severe cases.",
+      "Infection typically starts on older, lower leaves and progresses up the plant.",
+      "Underlying leaf tissue may turn yellow (chlorotic) as the infection progresses.",
+      "In severe cases, infected leaves can become brittle, curl, and senesce prematurely."
+    ],
+    "stems": [
+      "White mycelial growth can occasionally be observed on petioles and upper stems."
+    ],
+    "fruit": [
+      "Infection of the bracts surrounding the flower head can occur, but direct infection of the head or seeds is uncommon."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Overall plant vigor may be reduced, but severe stunting is rare unless infection occurs very early."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible white, powdery fungal growth (mycelium and conidia) that can be rubbed off the leaf surface.",
+      "Late in the season, tiny black specks (chasmothecia, the sexual fruiting bodies) may be visible embedded in the white mycelial mats."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "downy mildew",
+      "condition_id": "sunflower.disease_fungal.downy_mildew",
+      "key_differences": [
+        "Location: Powdery mildew signs are white and primarily on the *upper* leaf surface; downy mildew signs are grayish-purple and on the *lower* surface.",
+        "Lesion Type: Powdery mildew forms superficial, circular white spots; downy mildew causes pale green/yellow, angular lesions on the upper surface, bounded by veins.",
+        "Texture: Powdery mildew looks like flour; downy mildew has a fuzzy or downy texture.",
+        "Moisture: Powdery mildew is inhibited by free water on leaves; downy mildew requires leaf wetness to sporulate."
+      ]
+    },
+    {
+      "condition_name": "alternaria leaf spot",
+      "condition_id": "sunflower.disease_fungal.alternaria_leaf_spot",
+      "key_differences": [
+        "Color and Type: Alternaria causes dark brown to black necrotic lesions; powdery mildew is a white, superficial fungal growth.",
+        "Pattern: Alternaria lesions often have a characteristic 'target-like' pattern of concentric rings; powdery mildew growth is uniform.",
+        "Effect on Tissue: Alternaria lesions are dead tissue that can create a 'shot-hole' effect; powdery mildew grows on top of living tissue, causing it to yellow later."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant resistant or tolerant sunflower hybrids.",
+      "Optimize plant spacing and row orientation to promote air circulation and reduce humidity within the canopy.",
+      "Avoid excessive nitrogen fertilization, which promotes lush, susceptible growth.",
+      "Manage volunteer sunflowers and weed hosts that can harbor the pathogen."
+    ],
+    "biological": [
+      "Applications of bio-fungicides containing *Bacillus subtilis* or neem oil may provide some suppression."
+    ],
+    "chemical": [
+      "Apply foliar fungicides (e.g., strobilurins, DMIs, sulfur-based products) when conditions are favorable or at first sign of disease.",
+      "Ensure thorough spray coverage, especially in the lower canopy where the disease starts.",
+      "Rotate fungicide modes of action to mitigate the risk of developing fungicide resistance."
+    ],
+    "notes": "Fungicide applications are most effective when applied preventatively or early in the disease cycle. Economic benefit is greatest when disease appears before or during flowering on susceptible hybrids."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/sunflower/wilted.json b/diseases_knowledge_base/sunflower/wilted.json
new file mode 100644
index 0000000000000000000000000000000000000000..0f9c656ce360c78001a20c291a74cb609b9d86e8
--- /dev/null
+++ b/diseases_knowledge_base/sunflower/wilted.json
@@ -0,0 +1,120 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "sunflower.physiological_symptom.wilted",
+  "aliases": [
+    "drought stress",
+    "water stress",
+    "drooping",
+    "heat stress"
+  ],
+  "crop": {
+    "common_name": "sunflower",
+    "scientific_name": "Helianthus annuus",
+    "family": "Asteraceae"
+  },
+  "condition": {
+    "common_name": "wilted",
+    "scientific_name": "",
+    "alt_names": [
+      "drought stress",
+      "water stress"
+    ],
+    "pathogen": {
+      "type": "abiotic",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "physiological_symptom",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Low soil moisture",
+      "High ambient temperatures",
+      "High winds increasing transpiration",
+      "Low relative humidity",
+      "Soil compaction limiting root growth"
+    ],
+    "temp_c_day": [
+      28,
+      40
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      10,
+      50
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Slight drooping of upper leaves and petioles, typically during the hottest part of the day. Plant fully recovers turgor overnight.",
+    "moderate": "Most leaves on the plant are visibly drooping. The flower head (peduncle) may begin to bend downwards. Plant may not fully recover overnight.",
+    "severe": "All leaves are limp and hanging vertically. The stem is bent, and the flower head hangs down completely. Lower leaves may be yellow or brown (senesced). Permanent damage is likely.",
+    "notes": "Severity is assessed based on the degree of turgor loss across the entire plant, including leaves, petioles, and the upper stem/peduncle. A value of 0 for leaf wetness threshold indicates it is not a risk factor for this abiotic condition."
+  },
+  "symptoms": {
+    "leaves": [
+      "Leaves lose rigidity and hang limply from the petiole.",
+      "Leaf blades appear flaccid and may curl inwards at the margins.",
+      "Petioles droop, causing leaves to hang down close to the main stem.",
+      "In prolonged stress, lower leaves turn yellow, then brown and dry, starting from the margins."
+    ],
+    "stems": [
+      "The upper portion of the stem, particularly the peduncle supporting the flower head, bends or hooks downwards.",
+      "In severe cases, the entire main stem may lose rigidity and bend."
+    ],
+    "fruit": [
+      "The flower head faces downwards or hangs limply, a condition known as 'nodding'."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "The entire plant has a drooping, deflated appearance.",
+      "Growth is stunted if water stress is chronic during vegetative stages."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "growth_stage_maturebud",
+      "condition_id": "sunflower.growth_stage.maturebud",
+      "key_differences": [
+        "Natural drooping involves only the heavy flower head bending downwards; leaves remain turgid and angled correctly.",
+        "In wilting, both the leaves and the flower head droop due to water loss.",
+        "Natural drooping is a permanent change due to weight, whereas wilting can be reversed with watering if not severe."
+      ]
+    },
+    {
+      "condition_name": "downy_mildew",
+      "condition_id": "sunflower.fungal_disease.downy_mildew",
+      "key_differences": [
+        "Downy mildew causes distinct yellow (chlorotic) spots on the upper leaf surface, often angular and vein-limited.",
+        "A white, fuzzy fungal growth is often visible on the underside of leaves with downy mildew, which is absent in wilting.",
+        "Wilting from downy mildew is a systemic symptom often accompanied by severe stunting, not just a temporary loss of turgor."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Provide consistent and adequate irrigation, especially during bud formation and flowering.",
+      "Improve soil structure and water-holding capacity by incorporating organic matter.",
+      "Use mulch to reduce soil moisture evaporation.",
+      "Control weeds to minimize competition for water resources.",
+      "Select drought-tolerant sunflower varieties where appropriate."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "Management is entirely preventative and focuses on ensuring adequate water availability to the plant's root system."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/tea/algal_leaf_spot.json b/diseases_knowledge_base/tea/algal_leaf_spot.json
new file mode 100644
index 0000000000000000000000000000000000000000..a3a1047adf6f57bd1c9b63efb2dcaa867394ae7e
--- /dev/null
+++ b/diseases_knowledge_base/tea/algal_leaf_spot.json
@@ -0,0 +1,144 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "tea.disease_fungal.algal_leaf_spot",
+  "aliases": [
+    "red rust of tea",
+    "algal leaf disease",
+    "Cephaleuros leaf spot"
+  ],
+  "crop": {
+    "common_name": "tea",
+    "scientific_name": "Camellia sinensis",
+    "family": "Theaceae"
+  },
+  "condition": {
+    "common_name": "algal leaf spot",
+    "scientific_name": "Cephaleuros virescens",
+    "alt_names": [
+      "red rust"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Plantae",
+        "phylum": "Chlorophyta",
+        "class": "Ulvophyceae",
+        "order": "Trentepohliales",
+        "family": "Trentepohliaceae",
+        "genus": "Cephaleuros",
+        "species": "virescens"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [
+      "wind-driven rain",
+      "water splash"
+    ],
+    "dispersal": [
+      "Spores (zoospores) are dispersed by rain splash and wind.",
+      "Contaminated pruning tools can spread the pathogen."
+    ],
+    "overwintering": [
+      "As mycelium-like filaments within lesions on living leaves and stems."
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High humidity and frequent rainfall",
+      "Poor air circulation within the canopy",
+      "Low soil fertility or plant stress",
+      "Shaded growing conditions"
+    ],
+    "temp_c_day": [
+      25,
+      32
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      80,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 8
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "Less than 5% of the total leaf area of the plant is affected by spots.",
+    "moderate": "5-25% of the total leaf area is affected, with multiple spots per leaf on many leaves.",
+    "severe": "More than 25% of the total leaf area is affected, with spots coalescing and causing premature leaf drop.",
+    "notes": "Severity is estimated by visually assessing the percentage of leaf surface covered by algal spots across the entire plant or a representative branch. The raised, velvety texture is a key characteristic of the lesions being counted."
+  },
+  "symptoms": {
+    "leaves": [
+      "Circular to irregular spots, primarily on the upper leaf surface.",
+      "Lesions are slightly raised from the leaf surface.",
+      "Spots have a distinct velvety or felt-like texture.",
+      "Color is initially greenish-gray, turning yellowish-brown to orange-red.",
+      "A narrow, necrotic border may form around the spot.",
+      "In severe cases, spots can coalesce, leading to leaf yellowing and premature defoliation.",
+      "The algal growth is superficial, penetrating only the cuticle and epidermis."
+    ],
+    "stems": [
+      "On young, green stems, similar raised, velvety, reddish-brown lesions can occur.",
+      "Stem lesions can girdle the stem, causing dieback of the shoot tip."
+    ],
+    "fruit": [],
+    "roots": [],
+    "whole_plant": [
+      "Reduced plant vigor and stunted growth in heavily infected plants.",
+      "Overall thinning of the canopy due to defoliation."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible sign is the dense, felt-like mat of algal filaments (thallus) on the leaf surface.",
+      "Under magnification, reddish, hair-like structures (sporangiophores) may be visible rising from the spot."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "leaf_scab",
+      "condition_id": "tea.disease_fungal.leaf_scab",
+      "key_differences": [
+        "Texture: Scab lesions are typically corky or scaly, not velvety or felt-like.",
+        "Appearance: Scab spots often have a slightly depressed or sunken center with a raised, dark margin.",
+        "Color: Leaf scab is usually grayish-brown to dark brown, lacking the distinct orange-red hue of mature algal spots."
+      ]
+    },
+    {
+      "condition_name": "red_leaf_spot",
+      "condition_id": "tea.disease_fungal.red_leaf_spot",
+      "key_differences": [
+        "Elevation: Red leaf spots are flat or slightly sunken, not raised from the leaf surface.",
+        "Texture: Lesions lack the characteristic velvety or felt-like texture of algal spot.",
+        "Size: Red leaf spots are often smaller and more numerous than algal spots.",
+        "Color: While reddish, they are typically more purple-red or dark red and lack the greenish-gray initial phase."
+      ]
+    },
+    {
+      "condition_name": "gray_blight",
+      "condition_id": "tea.disease_fungal.gray_blight",
+      "key_differences": [
+        "Size & Shape: Gray blight lesions are much larger, often starting at the tip or margin and covering a significant portion of the leaf.",
+        "Appearance: Lesions are distinctly zonate, with concentric rings (target-like pattern), which is absent in algal spot.",
+        "Color: The center of gray blight lesions is grayish-white to light brown, not reddish-orange.",
+        "Texture: Gray blight lesions are papery and dry, not raised and velvety."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Improve air circulation through proper pruning and spacing of plants.",
+      "Manage shade to reduce humidity and leaf wetness duration.",
+      "Maintain balanced plant nutrition to improve host resistance.",
+      "Remove and destroy heavily infected leaves and pruned branches."
+    ],
+    "biological": [
+      "Promoting a healthy soil microbiome can enhance overall plant health and resilience."
+    ],
+    "chemical": [
+      "Application of copper-based fungicides (e.g., copper oxychloride, Bordeaux mixture) can be effective.",
+      "Fungicides should be applied preventatively during periods of high risk (warm, wet weather)."
+    ],
+    "notes": "Management should focus on cultural practices to alter the microenvironment, making it less favorable for the alga. Chemical control is typically a secondary measure for severe outbreaks."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/tea/gray_blight.json b/diseases_knowledge_base/tea/gray_blight.json
new file mode 100644
index 0000000000000000000000000000000000000000..896aa72d87743a6395de1c12d75419c788f6ed79
--- /dev/null
+++ b/diseases_knowledge_base/tea/gray_blight.json
@@ -0,0 +1,144 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "tea.disease_fungal.gray_blight",
+  "aliases": [
+    "Pestalotiopsis leaf spot",
+    "Grey leaf spot",
+    "Grey blight"
+  ],
+  "crop": {
+    "common_name": "tea",
+    "scientific_name": "Camellia sinensis",
+    "family": "Theaceae"
+  },
+  "condition": {
+    "common_name": "gray blight",
+    "scientific_name": "Pestalotiopsis theae",
+    "alt_names": [
+      "Grey leaf blight"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Sordariomycetes",
+        "order": "Xylariales",
+        "family": "Amphisphaeriaceae",
+        "genus": "Pestalotiopsis",
+        "species": "theae"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [
+      "rain splash",
+      "wind"
+    ],
+    "dispersal": [
+      "conidia (asexual spores)"
+    ],
+    "overwintering": [
+      "infected leaves",
+      "plant debris on the ground",
+      "cankers on stems"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high humidity",
+      "prolonged leaf wetness",
+      "mechanical injury (e.g., hail, pruning wounds)",
+      "sun scorch",
+      "nutrient stress"
+    ],
+    "temp_c_day": [
+      20,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 10
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area is affected. Lesions are small, distinct, and mostly on older leaves.",
+    "moderate": "11-30% of leaf area is affected. Lesions are larger and may begin to coalesce.",
+    "severe": ">30% of leaf area is affected. Lesions have merged into large necrotic patches, potentially leading to defoliation.",
+    "notes": "Severity is assessed on the most affected leaves of a plant to represent the peak disease expression. It measures the direct loss of photosynthetic area."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial spots are small, yellowish-brown, and circular to slightly irregular.",
+      "Mature lesions develop a distinct grayish-white or light brown center.",
+      "A prominent, dark brown to purplish border surrounds the necrotic center.",
+      "Lesions often exhibit concentric rings, giving a 'target' or 'zonate' appearance.",
+      "Tiny, black, pinhead-sized dots (acervuli) are often visible within the gray center.",
+      "The central tissue of the lesion becomes thin and papery.",
+      "Lesions may coalesce to form large, irregular necrotic blotches.",
+      "In some cases, the dead central tissue falls out, creating a 'shot-hole' effect.",
+      "Symptoms are typically more prevalent on older, mature leaves."
+    ],
+    "stems": [
+      "In severe infections on young shoots, small, sunken, dark lesions or cankers can form."
+    ],
+    "fruit": [],
+    "roots": [],
+    "whole_plant": [
+      "Reduced plant vigor and overall poor growth in cases of severe infection.",
+      "Premature defoliation can occur when disease pressure is high."
+    ],
+    "signs_microscopic_or_visible": [
+      "Presence of black, erumpent acervuli (fungal fruiting bodies) in the center of mature lesions, sometimes arranged in concentric rings."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "leaf blight",
+      "condition_id": "tea.disease_fungal.leaf_blight",
+      "key_differences": [
+        "Leaf blight lesions are often larger, more irregular, and start from the leaf tip or margin, whereas gray blight spots are more circular and can appear anywhere.",
+        "Gray blight has a more distinct gray/white center and dark border compared to the more uniform brown necrosis of many leaf blights.",
+        "Concentric rings ('target spots') are a classic feature of gray blight, which is less common in leaf blight."
+      ]
+    },
+    {
+      "condition_name": "algal leaf spot",
+      "condition_id": "tea.disease_other.algal_leaf_spot",
+      "key_differences": [
+        "Algal spots are raised, superficial, and have a velvety texture, typically appearing orange-red or grayish-green.",
+        "Gray blight lesions are sunken (necrotic), not raised, and are integral to the leaf tissue.",
+        "Algal spots do not have the characteristic gray center with a dark border or concentric rings."
+      ]
+    },
+    {
+      "condition_name": "helopeltis_damage",
+      "condition_id": "tea.pest_insect.helopeltis_damage",
+      "key_differences": [
+        "Helopeltis damage (from tea mosquito bug) appears as angular, dark brown to black necrotic spots without a gray center or distinct border.",
+        "Insect damage often causes significant distortion, puckering, or curling of young, tender leaves, which is not a primary symptom of gray blight.",
+        "Helopeltis feeding spots are numerous and clustered, reflecting the insect's probing, while gray blight lesions are typically fewer and more developed."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Prune bushes to improve air circulation and sunlight penetration, which reduces leaf wetness duration.",
+      "Remove and burn or bury infected leaves and pruned debris to reduce inoculum.",
+      "Maintain balanced soil fertility and pH to ensure plant vigor.",
+      "Avoid mechanical damage to plants during field operations."
+    ],
+    "biological": [
+      "Application of bio-control agents like *Trichoderma* spp. can help suppress pathogen growth in the soil and on plant surfaces."
+    ],
+    "chemical": [
+      "Apply protective fungicides (e.g., copper oxychloride, mancozeb) before periods of high risk.",
+      "Use systemic fungicides (e.g., hexaconazole, propiconazole) for curative action, following local regulations and resistance management guidelines."
+    ],
+    "notes": "An integrated pest management (IPM) approach is recommended, combining cultural practices with judicious, need-based fungicide applications timed with weather forecasts."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/tea/healthy.json b/diseases_knowledge_base/tea/healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..995cdc9a750e37f7f80dcac508042d739c245ea3
--- /dev/null
+++ b/diseases_knowledge_base/tea/healthy.json
@@ -0,0 +1,120 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "tea.healthy.healthy",
+  "aliases": [
+    "Normal tea plant",
+    "Undiseased tea"
+  ],
+  "crop": {
+    "common_name": "tea",
+    "scientific_name": "Camellia sinensis",
+    "family": "Theaceae"
+  },
+  "condition": {
+    "common_name": "Healthy",
+    "scientific_name": null,
+    "alt_names": [
+      "Normal",
+      "No disease"
+    ],
+    "pathogen": {
+      "type": "physiological",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "healthy",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [],
+    "temp_c_day": [],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Not applicable. Plant is either healthy or exhibits symptoms of a condition.",
+    "moderate": "Not applicable.",
+    "severe": "Not applicable.",
+    "notes": "Healthy is a binary state defined by the absence of disease, pest, or abiotic stress symptoms. Any deviation would classify the plant as unhealthy."
+  },
+  "symptoms": {
+    "leaves": [
+      "Leaves are uniformly green, ranging from light green on new growth (flush) to a deep, dark green on mature leaves.",
+      "Leaf surface is smooth, often with a waxy or glossy appearance.",
+      "Leaf margins are intact and typically serrated, not ragged, torn, or necrotic.",
+      "No visible spots, lesions, discoloration, stippling, or pustules are present.",
+      "Leaves are turgid and appropriately shaped, not wilted, curled, or distorted.",
+      "Venation pattern is normal for the cultivar without discoloration."
+    ],
+    "stems": [
+      "Young stems and shoots are green, supple, and vigorous.",
+      "Older stems are woody, brown or grayish, and firm.",
+      "No cankers, galls, dieback, or unusual growths are visible."
+    ],
+    "fruit": [
+      "Flowers, if present, are typically white with bright yellow stamens and show no signs of blight or malformation.",
+      "Seed capsules, if present, are green to brown, firm, and free of lesions."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Exhibits a dense, bushy growth habit with vigorous new shoots.",
+      "Overall appearance is uniform in color and density."
+    ],
+    "signs_microscopic_or_visible": [
+      "Absence of any visible signs of pathogens or pests, such as fungal mycelium, spores, webbing, insect frass, or insect bodies."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "algal_leaf_spot",
+      "condition_id": "tea.fungal.algal_leaf_spot",
+      "key_differences": [
+        "Healthy leaves have a smooth, uniform surface, whereas algal leaf spot presents as distinct, slightly raised, circular spots.",
+        "The spots from algal leaf spot have a velvety texture and are typically gray-green, later turning orange-red.",
+        "Healthy leaves lack the defined border that often characterizes algal spots."
+      ]
+    },
+    {
+      "condition_name": "spider_mites",
+      "condition_id": "tea.pest.spider_mites",
+      "key_differences": [
+        "Healthy leaves have a uniform green color, while mite damage causes a fine, pale yellow or whitish stippling on the leaf surface.",
+        "In severe cases, mite damage can lead to a bronze or grayish cast on the leaves, which is absent in healthy plants.",
+        "The underside of mite-infested leaves may have fine silk webbing, which is never present on healthy leaves."
+      ]
+    },
+    {
+      "condition_name": "helopeltis_damage",
+      "condition_id": "tea.pest.helopeltis_damage",
+      "key_differences": [
+        "Healthy leaves are whole and unblemished.",
+        "Helopeltis damage is characterized by distinct, angular, dark brown to black necrotic spots where the insect has fed.",
+        "Feeding spots from Helopeltis often cause the leaf to become distorted or curled as it grows, a feature absent in healthy leaves."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Maintain balanced soil fertility through appropriate nutrient management.",
+      "Ensure proper soil drainage and consistent irrigation to avoid water stress.",
+      "Regularly prune plants to encourage vigorous new growth and improve air circulation.",
+      "Practice good field sanitation to remove potential sources of inoculum or pests."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "Management for a healthy plant focuses on preventative care and maintaining optimal growing conditions to prevent stress, which can predispose the plant to diseases and pests."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/tea/helopeltis_damage.json b/diseases_knowledge_base/tea/helopeltis_damage.json
new file mode 100644
index 0000000000000000000000000000000000000000..0db2db12f0c5d566a9a7e534b31834f3dc90da60
--- /dev/null
+++ b/diseases_knowledge_base/tea/helopeltis_damage.json
@@ -0,0 +1,143 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "tea.pest_insect.helopeltis_damage",
+  "aliases": [
+    "Tea mosquito bug damage",
+    "Helopeltis"
+  ],
+  "crop": {
+    "common_name": "Tea",
+    "scientific_name": "Camellia sinensis",
+    "family": "Theaceae"
+  },
+  "condition": {
+    "common_name": "Helopeltis Damage",
+    "scientific_name": "Helopeltis spp.",
+    "alt_names": [
+      "Tea mosquito bug",
+      "Mirid bug damage"
+    ],
+    "pathogen": {
+      "type": "Insect",
+      "taxonomy": {
+        "kingdom": "Animalia",
+        "phylum": "Arthropoda",
+        "class": "Insecta",
+        "order": "Hemiptera",
+        "family": "Miridae",
+        "genus": "Helopeltis",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "pest_insect",
+  "transmission": {
+    "vectors": [
+      "Adult and nymph Helopeltis bugs"
+    ],
+    "dispersal": [
+      "Active flight of adult bugs",
+      "Crawling of nymphs between leaves and shoots"
+    ],
+    "overwintering": [
+      "Eggs laid within plant tissues (stems, petioles)",
+      "Adults surviving on alternate host plants"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High relative humidity (>70%)",
+      "Overcast, cloudy weather",
+      "Presence of alternate weed hosts (e.g., Mikania micrantha)",
+      "Lush, succulent new growth from excessive nitrogen fertilizer"
+    ],
+    "temp_c_day": [
+      20,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      70,
+      95
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "lesion_count",
+    "mild": "1-5 distinct feeding punctures per young leaf or shoot.",
+    "moderate": "6-15 coalescing lesions per young leaf or shoot, causing some leaf curling or distortion.",
+    "severe": ">15 lesions per young leaf or shoot, causing significant distortion, blackening, and dieback of the shoot ('bunchy top').",
+    "notes": "Severity is assessed on the tender, new flush (e.g., 'two leaves and a bud') as this is the primary target. Damage on older, hardened leaves is historical and not indicative of a current, active infestation."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initially, small, circular, water-soaked, translucent spots on young, tender leaves.",
+      "Spots rapidly turn dark brown to black, becoming necrotic and sunken.",
+      "Multiple feeding punctures can coalesce to form larger, irregular black patches.",
+      "Affected young leaves become severely crinkled, distorted, and stunted in growth.",
+      "In severe attacks, young leaves curl, blacken completely, and die."
+    ],
+    "stems": [
+      "Similar dark, necrotic, sunken lesions appear on young, green stems and petioles.",
+      "Feeding on the terminal bud or young stem causes the shoot tip to wilt and die back.",
+      "Severe dieback of the main shoot can lead to a 'bunchy top' appearance as lateral buds attempt to grow."
+    ],
+    "fruit": [],
+    "roots": [],
+    "whole_plant": [
+      "Damage is concentrated on the new, harvestable flush.",
+      "A heavily infested bush appears scorched or burnt on its top canopy."
+    ],
+    "signs_microscopic_or_visible": [
+      "Slender, reddish-brown or black adult bugs with long legs and antennae, often found on the underside of leaves.",
+      "Greenish or yellowish nymphs, similar in shape to adults but smaller and wingless."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Looper Damage",
+      "condition_id": "tea.pest_insect.looper_damage",
+      "key_differences": [
+        "Looper damage consists of chewed leaf margins or holes with missing tissue, whereas Helopeltis damage is necrotic, sunken punctures with no tissue removed.",
+        "Helopeltis lesions are initially water-soaked and turn black; looper damage is simply an absence of leaf area.",
+        "Looper caterpillars or their frass (droppings) may be visible; Helopeltis bugs are slender and mosquito-like."
+      ]
+    },
+    {
+      "condition_name": "Leaf Blight",
+      "condition_id": "tea.fungal.leaf_blight",
+      "key_differences": [
+        "Blight lesions are typically larger, more diffuse, and may have faint concentric rings or a 'target' appearance, unlike the discrete punctures of Helopeltis.",
+        "Helopeltis damage is almost exclusively on tender new growth, while fungal blights can often affect leaves of various ages.",
+        "Blight lesions are generally not sunken in the same way as Helopeltis feeding punctures.",
+        "Fungal blight may show signs like pycnidia (small black dots) within the lesion, which are absent in pest damage."
+      ]
+    },
+    {
+      "condition_name": "Spider Mites",
+      "condition_id": "tea.pest_mite.spider_mites",
+      "key_differences": [
+        "Spider mite damage appears as fine, yellowish-white stippling or a general bronzing of the leaf surface, not discrete black spots.",
+        "Helopeltis causes distinct, sunken, necrotic lesions from its toxic saliva during feeding.",
+        "Fine webbing is often present on the underside of leaves with spider mites, which is absent with Helopeltis."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Regular pruning to regulate shade and improve air circulation, making the environment less favorable for the pest.",
+      "Control of alternate weed hosts (e.g., Mikania, Acalypha) in and around the plantation.",
+      "Avoid excessive nitrogen application, which promotes the succulent growth preferred by the pest.",
+      "Maintain field sanitation to reduce pest carryover."
+    ],
+    "biological": [
+      "Conservation and encouragement of natural enemies like reduviid bugs, praying mantises, and spiders.",
+      "Application of entomopathogenic fungi such as Beauveria bassiana during periods of high humidity."
+    ],
+    "chemical": [
+      "Foliar application of approved insecticides, focusing on the new flush during peak pest activity (early morning or late afternoon).",
+      "Use of both contact and systemic insecticides based on infestation levels and local agricultural recommendations."
+    ],
+    "notes": "An Integrated Pest Management (IPM) approach is critical. Regular monitoring of pest populations to determine economic thresholds for spraying helps preserve natural enemies and reduce chemical costs."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/tea/leaf_blight.json b/diseases_knowledge_base/tea/leaf_blight.json
new file mode 100644
index 0000000000000000000000000000000000000000..e53c2e018c471181ba9ec701cc61472c463aedd7
--- /dev/null
+++ b/diseases_knowledge_base/tea/leaf_blight.json
@@ -0,0 +1,147 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "tea.disease_fungal.leaf_blight",
+  "aliases": [
+    "tea anthracnose",
+    "bird's eye spot of tea",
+    "target spot of tea"
+  ],
+  "crop": {
+    "common_name": "tea",
+    "scientific_name": "Camellia sinensis",
+    "family": "Theaceae"
+  },
+  "condition": {
+    "common_name": "leaf blight",
+    "scientific_name": "Colletotrichum gloeosporioides (teleomorph: Glomerella cingulata)",
+    "alt_names": [
+      "Pestalotiopsis theae"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Sordariomycetes",
+        "order": "Glomerellales",
+        "family": "Glomerellaceae",
+        "genus": "Colletotrichum",
+        "species": "gloeosporioides"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [
+      "rain splash",
+      "wind",
+      "insects (mechanical)"
+    ],
+    "dispersal": [
+      "conidia (asexual spores)",
+      "contaminated pruning tools",
+      "human movement"
+    ],
+    "overwintering": [
+      "infected fallen leaves",
+      "cankers on stems",
+      "dormant mycelium in plant debris"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "prolonged periods of high humidity",
+      "frequent rainfall",
+      "poor air circulation in dense canopies",
+      "wounds from pruning or pests",
+      "nutrient stress"
+    ],
+    "temp_c_day": [
+      20,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 8
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "Fewer than 5 lesions per leaf, or < 5% of the total leaf area is symptomatic.",
+    "moderate": "Multiple lesions, some may be coalescing, covering 5-25% of the total leaf area.",
+    "severe": "Large, coalesced lesions covering > 25% of the leaf area, often leading to leaf distortion, withering, and premature defoliation.",
+    "notes": "Severity is estimated based on the percentage of symptomatic tissue on visible leaves in an image. It can be assessed on an individual leaf or averaged across the plant canopy."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial symptoms are small, water-soaked, yellowish-brown spots, often on mature leaves.",
+      "Spots enlarge to form circular or irregular lesions, typically 2-10 mm in diameter.",
+      "Mature lesions develop a characteristic pale gray, tan, or whitish center.",
+      "A distinct, raised, dark brown or purplish-brown border surrounds the pale center.",
+      "Concentric rings are often visible within the lesion, creating a 'target' or 'bull's-eye' appearance.",
+      "Multiple lesions can merge (coalesce) to form large, irregular blighted patches.",
+      "In severe infections, the entire leaf may turn brown, curl, and drop prematurely.",
+      "Lesions may crack or fall out, creating a 'shot-hole' effect."
+    ],
+    "stems": [
+      "In severe cases, cankers or dieback can occur on young shoots and twigs."
+    ],
+    "fruit": [],
+    "roots": [],
+    "whole_plant": [
+      "Reduced vigor and defoliation in heavily infected bushes.",
+      "Overall thinning of the plant canopy."
+    ],
+    "signs_microscopic_or_visible": [
+      "Under humid conditions, tiny black dots (acervuli, the fungal fruiting bodies) may appear arranged in concentric rings within the pale center of lesions.",
+      "During wet periods, pinkish or salmon-colored spore masses may ooze from the acervuli."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "gray_blight",
+      "condition_id": "tea.disease_fungal.gray_blight",
+      "key_differences": [
+        "Gray blight lesions are often larger, more uniformly gray or brownish, and may lack the distinct, dark, raised border of leaf blight.",
+        "Gray blight lesions typically have a more 'sooty' appearance due to numerous black pycnidia scattered across the surface, rather than arranged in rings.",
+        "The 'target' or 'bull's-eye' pattern is much more characteristic of leaf blight than gray blight."
+      ]
+    },
+    {
+      "condition_name": "helopeltis_damage",
+      "condition_id": "tea.pest_insect.helopeltis_damage",
+      "key_differences": [
+        "Helopeltis damage results from insect feeding punctures, creating initially water-soaked spots that quickly turn dark brown or black and become sunken.",
+        "Lesions from Helopeltis are often more angular and do not typically develop pale centers or concentric rings.",
+        "No fungal signs (like acervuli or spore masses) are present in Helopeltis lesions."
+      ]
+    },
+    {
+      "condition_name": "algal_leaf_spot",
+      "condition_id": "tea.disease_algal.algal_leaf_spot",
+      "key_differences": [
+        "Algal spots are superficial and slightly raised from the leaf surface with a velvety or crusty texture.",
+        "Algal spots are typically greenish-gray to orange-red in color, not the tan/gray center with a dark border typical of leaf blight.",
+        "Leaf blight lesions are necrotic and sunken into the leaf tissue, whereas algal spots grow on the surface."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Prune and remove infected leaves and twigs to reduce inoculum.",
+      "Ensure proper plant spacing and canopy management to improve air circulation and reduce humidity.",
+      "Avoid overhead irrigation to minimize leaf wetness duration.",
+      "Maintain balanced plant nutrition to improve host resistance."
+    ],
+    "biological": [
+      "Application of biocontrol agents such as *Trichoderma* spp. or *Bacillus subtilis* can help suppress the pathogen."
+    ],
+    "chemical": [
+      "Apply protective fungicides, such as copper-based compounds, mancozeb, or chlorothalonil, especially during periods favorable for disease development.",
+      "Systemic fungicides like carbendazim or thiophanate-methyl may be used for curative action, subject to local regulations and resistance management."
+    ],
+    "notes": "An integrated pest management (IPM) approach combining cultural, biological, and chemical methods is most effective. Fungicide application should be timed based on weather forecasts and disease pressure."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/tea/leaf_scab.json b/diseases_knowledge_base/tea/leaf_scab.json
new file mode 100644
index 0000000000000000000000000000000000000000..86fd066a8849784fc00e7eebe9bde9bbc0018256
--- /dev/null
+++ b/diseases_knowledge_base/tea/leaf_scab.json
@@ -0,0 +1,142 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "tea.disease_fungal.leaf_scab",
+  "aliases": [
+    "bird's eye spot",
+    "cercospora leaf spot"
+  ],
+  "crop": {
+    "common_name": "Tea",
+    "scientific_name": "Camellia sinensis",
+    "family": "Theaceae"
+  },
+  "condition": {
+    "common_name": "Leaf Scab",
+    "scientific_name": "Elsino\u00eb theae",
+    "alt_names": [
+      "Bird's eye spot"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Myriangiales",
+        "family": "Elsinoaceae",
+        "genus": "Elsino\u00eb",
+        "species": "E. theae"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "wind-blown rain",
+      "water splash",
+      "contaminated pruning tools"
+    ],
+    "overwintering": [
+      "infected leaves",
+      "cankers on stems",
+      "plant debris on the ground"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "prolonged leaf wetness",
+      "high humidity",
+      "poor air circulation in dense canopies",
+      "presence of young, susceptible flush leaves",
+      "warm temperatures"
+    ],
+    "temp_c_day": [
+      20,
+      28
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 10
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-5% of leaf area affected. A few scattered, distinct lesions on the leaf.",
+    "moderate": "6-25% of leaf area affected. Multiple lesions are present, some may be starting to merge (coalesce).",
+    "severe": ">25% of leaf area affected. Numerous lesions have coalesced into large necrotic patches, causing significant leaf distortion, yellowing, or premature defoliation.",
+    "notes": "Assessment should be based on the most symptomatic leaves on the plant. The percentage reflects the total surface area covered by lesions."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial symptoms are small, dark brown to purplish, water-soaked spots on young, tender leaves.",
+      "Lesions expand to form circular spots, typically 1-5 mm in diameter.",
+      "Mature spots develop a characteristic pale gray, tan, or whitish center.",
+      "A distinct, raised, dark brown or purplish-red border surrounds the pale center, creating a 'bird's eye' or 'frog-eye' appearance.",
+      "The center of the lesion may become thin and papery, eventually falling out to create a 'shot-hole' effect.",
+      "Under heavy infection, multiple spots can coalesce, forming large, irregular, blighted areas.",
+      "Affected leaves may become distorted, puckered, or curled.",
+      "Severe infections can lead to premature leaf drop."
+    ],
+    "stems": [
+      "On young, green stems and petioles, lesions appear as small, slightly raised, scabby cankers with similar coloration to leaf spots."
+    ],
+    "fruit": [],
+    "roots": [],
+    "whole_plant": [
+      "Reduced plant vigor and poor growth in cases of chronic, severe infection."
+    ],
+    "signs_microscopic_or_visible": [
+      "Under high humidity and with a hand lens, tiny black specks (acervuli, the fungal fruiting bodies) may be visible in the center of lesions."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Algal Leaf Spot",
+      "condition_id": "tea.disease_algal.algal_leaf_spot",
+      "key_differences": [
+        "Algal spots are raised, superficial, and have a velvety or felt-like texture, whereas leaf scab lesions are slightly sunken.",
+        "Algal spots are typically grayish-green, yellow, or orange-red and lack the distinct pale center and dark border of leaf scab.",
+        "Algal spots can often be physically scraped off the leaf surface; leaf scab lesions are integrated into the leaf tissue."
+      ]
+    },
+    {
+      "condition_name": "Gray Blight",
+      "condition_id": "tea.disease_fungal.gray_blight",
+      "key_differences": [
+        "Gray blight lesions are much larger (often >1 cm), starting from the leaf margin or tip, while leaf scab spots are small and scattered.",
+        "Gray blight lesions are grayish-brown and often have concentric rings (zonate pattern), which is absent in leaf scab.",
+        "Leaf scab has a distinct 'bird's eye' look with a white/gray center and dark border; gray blight is more uniformly colored or zoned.",
+        "Gray blight often features tiny black dots (pycnidia) arranged in rings, a key diagnostic sign not seen in leaf scab."
+      ]
+    },
+    {
+      "condition_name": "Helopeltis Damage",
+      "condition_id": "tea.damage_insect.helopeltis_damage",
+      "key_differences": [
+        "Helopeltis damage results in angular, water-soaked lesions that turn black or dark brown, without a pale center or colored border.",
+        "Insect feeding punctures are often visible and damage may appear in a linear or clustered pattern.",
+        "The transition from the necrotic spot to healthy tissue is very sharp and abrupt with Helopeltis damage."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Prune bushes to improve air circulation and light penetration, which helps dry leaves faster.",
+      "Remove and destroy fallen leaves and severely infected plant parts to reduce inoculum.",
+      "Avoid overhead irrigation to minimize the duration of leaf wetness.",
+      "Maintain balanced soil fertility to promote plant vigor and resistance."
+    ],
+    "biological": [
+      "Application of microbial antagonists like *Trichoderma* species can help suppress pathogen populations in the soil and on plant surfaces."
+    ],
+    "chemical": [
+      "Apply protective copper-based fungicides before or during periods of high risk (warm, wet weather).",
+      "Systemic fungicides (e.g., strobilurins, triazoles) can be effective but should be used in rotation to prevent resistance.",
+      "Timing is critical; applications should protect new, susceptible flushes of growth."
+    ],
+    "notes": "An integrated approach combining cultural practices with judicious fungicide use is most effective for long-term management."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/tea/looper_damage.json b/diseases_knowledge_base/tea/looper_damage.json
new file mode 100644
index 0000000000000000000000000000000000000000..3c41a0cac35bac9c95e52a7103a1dff63681382c
--- /dev/null
+++ b/diseases_knowledge_base/tea/looper_damage.json
@@ -0,0 +1,146 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "tea.pest_insect.looper_damage",
+  "aliases": [
+    "tea looper",
+    "inchworm",
+    "measuring worm"
+  ],
+  "crop": {
+    "common_name": "Tea",
+    "scientific_name": "Camellia sinensis",
+    "family": "Theaceae"
+  },
+  "condition": {
+    "common_name": "Looper Damage",
+    "scientific_name": "Biston suppressaria",
+    "alt_names": [
+      "Inchworm damage",
+      "Measuring worm damage"
+    ],
+    "pathogen": {
+      "type": "Insect",
+      "taxonomy": {
+        "kingdom": "Animalia",
+        "phylum": "Arthropoda",
+        "class": "Insecta",
+        "order": "Lepidoptera",
+        "family": "Geometridae",
+        "genus": "Biston",
+        "species": "suppressaria"
+      }
+    }
+  },
+  "issue_type": "pest_insect",
+  "transmission": {
+    "vectors": [
+      "Adult moths (for egg laying)"
+    ],
+    "dispersal": [
+      "Moth flight",
+      "Larval movement (crawling)"
+    ],
+    "overwintering": [
+      "Pupae in soil or leaf litter at the base of the plant"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Warm, humid conditions favorable for larval development",
+      "Presence of alternate host plants",
+      "Periods of low natural enemy populations"
+    ],
+    "temp_c_day": [
+      20,
+      30
+    ],
+    "temp_c_night": [
+      15,
+      25
+    ],
+    "relative_humidity_pct": [
+      60,
+      90
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "< 10% of leaf area consumed on affected leaves; damage is sparse and limited to a few shoots.",
+    "moderate": "10-40% of leaf area consumed on affected leaves; noticeable defoliation on several branches.",
+    "severe": "> 40% of leaf area consumed; widespread defoliation, skeletonization of leaves, and presence of numerous larvae.",
+    "notes": "Severity is assessed by the percentage of leaf tissue removed by larval feeding. High counts of larvae also indicate high severity, even if defoliation is not yet widespread. Leaf wetness is not a primary driver for insect feeding."
+  },
+  "symptoms": {
+    "leaves": [
+      "Irregularly shaped holes chewed in the leaf lamina.",
+      "Leaf margins appear scalloped, notched, or unevenly eaten.",
+      "Young, tender leaves and buds are preferentially consumed.",
+      "In severe infestations, only the midrib and major veins remain, a condition known as skeletonization.",
+      "Presence of small, dark green to black fecal pellets (frass) on leaf surfaces."
+    ],
+    "stems": [
+      "Young, tender stems (shoots) may be girdled or chewed.",
+      "Larvae are often seen resting motionless on stems, camouflaged as twigs."
+    ],
+    "fruit": [],
+    "roots": [],
+    "whole_plant": [
+      "Noticeable defoliation, particularly affecting the upper canopy or 'plucking table'.",
+      "Reduced plant vigor and stunted growth in young or heavily infested plants."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible caterpillars (larvae) that move with a characteristic 'looping' or 'measuring' gait.",
+      "Larvae are typically green, brown, or grey, mimicking twigs for camouflage.",
+      "Clusters of small, spherical eggs may be found on the underside of leaves or on stems."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Helopeltis Damage",
+      "condition_id": "tea.pest_insect.helopeltis_damage",
+      "key_differences": [
+        "Looper damage is the removal of leaf tissue (chewing), while Helopeltis damage consists of distinct, sunken, dark brown or black necrotic spots from piercing-sucking feeding.",
+        "Looper damage often creates holes or notched margins, whereas Helopeltis spots are solid lesions that do not remove tissue.",
+        "The presence of frass (fecal pellets) is a clear sign of looper activity and is absent with Helopeltis.",
+        "Helopeltis damage can cause leaf curling and distortion around the feeding spots, which is different from the clean chewing of loopers."
+      ]
+    },
+    {
+      "condition_name": "Gray Blight",
+      "condition_id": "tea.fungal.gray_blight",
+      "key_differences": [
+        "Looper damage involves missing leaf tissue, while gray blight is a fungal disease causing large, necrotic lesions that turn grayish-white and brittle.",
+        "Gray blight lesions often have a distinct, darker border and may contain tiny black dots (pycnidia), which are fungal structures absent in pest damage.",
+        "The texture of a blight lesion is papery and dead, whereas looper damage is simply an absence of tissue at the edge of healthy tissue."
+      ]
+    },
+    {
+      "condition_name": "Leaf Scab",
+      "condition_id": "tea.fungal.leaf_scab",
+      "key_differences": [
+        "Looper damage removes leaf tissue, creating holes. Leaf scab creates raised, corky, or wart-like lesions on the leaf surface, often on the underside.",
+        "Scab lesions are additive (a growth on the leaf), while looper damage is subtractive (tissue is gone).",
+        "Leaf scab causes significant distortion and curling of the leaf around the lesion, which is not a primary symptom of looper feeding."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Regular monitoring and scouting for larvae, especially on young flushes.",
+      "Hand-picking of larvae in small-scale or low-level infestations.",
+      "Promoting natural enemies by maintaining biodiversity and avoiding broad-spectrum insecticides."
+    ],
+    "biological": [
+      "Application of Bacillus thuringiensis (Bt) formulations, which are effective against lepidopteran larvae.",
+      "Encouragement of natural predators like birds, wasps, and spiders.",
+      "Use of viral pathogens like Nuclear Polyhedrosis Virus (NPV) specific to the looper."
+    ],
+    "chemical": [
+      "Application of selective insecticides when infestation levels exceed economic thresholds.",
+      "Use of insect growth regulators (IGRs) that disrupt the molting process of larvae.",
+      "Targeted spot spraying to minimize impact on non-target organisms."
+    ],
+    "notes": "Integrated Pest Management (IPM) combining cultural, biological, and judicious chemical control is the most sustainable approach."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/tea/red_leaf_spot.json b/diseases_knowledge_base/tea/red_leaf_spot.json
new file mode 100644
index 0000000000000000000000000000000000000000..28717651ef04e0590f4e4ce64cb5191294efc302
--- /dev/null
+++ b/diseases_knowledge_base/tea/red_leaf_spot.json
@@ -0,0 +1,138 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "tea.disease_fungal.red_leaf_spot",
+  "aliases": [
+    "Cercospora leaf spot",
+    "bird's eye spot"
+  ],
+  "crop": {
+    "common_name": "tea",
+    "scientific_name": "Camellia sinensis",
+    "family": "Theaceae"
+  },
+  "condition": {
+    "common_name": "red leaf spot",
+    "scientific_name": "Cercospora theae",
+    "alt_names": [
+      "bird's eye spot of tea"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Capnodiales",
+        "family": "Mycosphaerellaceae",
+        "genus": "Cercospora",
+        "species": "theae"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "wind-borne spores",
+      "rain splash"
+    ],
+    "overwintering": [
+      "infected leaves (attached or fallen)",
+      "plant debris on the ground"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "prolonged leaf wetness from rain, dew, or overhead irrigation",
+      "high relative humidity (>85%)",
+      "warm temperatures",
+      "poor air circulation within the plant canopy",
+      "presence of infected plant debris"
+    ],
+    "temp_c_day": [
+      20,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 8
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-5% of leaf area affected. A few, small, scattered lesions are visible on a representative leaf.",
+    "moderate": "6-25% of leaf area affected. Multiple lesions are present, and some may be starting to merge.",
+    "severe": ">25% of leaf area affected. Lesions are numerous, cover a large portion of the leaf, and may lead to yellowing or premature leaf drop.",
+    "notes": "Severity is visually estimated as the percentage of the total surface area of a single, representative, mature leaf that is covered by spots. This is a practical method for assessing foliar disease intensity in images."
+  },
+  "symptoms": {
+    "leaves": [
+      "Affects primarily mature and older leaves, less common on young flush.",
+      "Begins as small, circular, water-soaked spots.",
+      "Develops into distinct, circular lesions, typically 2-5 mm in diameter.",
+      "Lesions have a characteristic reddish-brown to dark brown color.",
+      "A distinct, dark, slightly raised border often surrounds the lesion.",
+      "The center of mature lesions frequently becomes pale gray or white, creating a 'bird's eye' or 'frog-eye' appearance.",
+      "Lesions are generally flat or slightly sunken into the leaf tissue.",
+      "Under severe infection, numerous spots can coalesce, forming larger necrotic blotches.",
+      "Heavily infected leaves may turn yellow (chlorosis) and fall off prematurely."
+    ],
+    "stems": [],
+    "fruit": [],
+    "roots": [],
+    "whole_plant": [
+      "Reduced photosynthetic area due to lesions and defoliation.",
+      "Overall loss of plant vigor and potential reduction in tea yield and quality."
+    ],
+    "signs_microscopic_or_visible": [
+      "Under magnification and high humidity, tiny dark tufts of conidiophores may be visible in the center of lesions."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "algal leaf spot",
+      "condition_id": "tea.disease_other.algal_leaf_spot",
+      "key_differences": [
+        "Texture: Algal spots are raised and have a crusty or velvety texture, whereas red leaf spots are flat or slightly sunken.",
+        "Color: Algal spots are typically grayish-green, sometimes turning orange-red, not the distinct reddish-brown of red leaf spot.",
+        "Margin: Algal spots often have indistinct, feathery margins, unlike the well-defined border of red leaf spot."
+      ]
+    },
+    {
+      "condition_name": "gray blight",
+      "condition_id": "tea.disease_fungal.gray_blight",
+      "key_differences": [
+        "Size & Location: Gray blight lesions are much larger (often >1 cm) and frequently start at the leaf tip or margin, not as small, scattered circles.",
+        "Appearance: Gray blight lesions are grayish-brown and classically exhibit distinct concentric rings, giving them a target-like appearance.",
+        "Signs: Tiny black dots (acervuli) are often visible arranged in the concentric rings of gray blight lesions."
+      ]
+    },
+    {
+      "condition_name": "helopeltis_damage",
+      "condition_id": "tea.pest_insect.helopeltis_damage",
+      "key_differences": [
+        "Shape: Damage spots from Helopeltis (tea mosquito bug) are typically irregular, angular, or blotchy, not consistently circular.",
+        "Color: Helopeltis feeding marks are dark brown to black and sunken, lacking the reddish hue and pale center of red leaf spot.",
+        "Pattern: Damage is often clustered where the insect has fed and may be accompanied by distorted or stunted new growth."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Prune bushes to improve air circulation and promote faster drying of leaves.",
+      "Remove and destroy fallen infected leaves and prunings to reduce inoculum sources.",
+      "Maintain balanced plant nutrition to improve plant vigor and resistance.",
+      "Avoid overhead irrigation where possible to minimize periods of leaf wetness."
+    ],
+    "biological": [
+      "Applications of bio-control agents like *Trichoderma* spp. may help suppress the pathogen population in the soil and on plant surfaces."
+    ],
+    "chemical": [
+      "Apply protective copper-based fungicides (e.g., copper oxychloride, Bordeaux mixture) before the onset of rainy seasons.",
+      "Systemic fungicides (e.g., hexaconazole, propiconazole) can be used for curative action, following local regulations and pre-harvest intervals."
+    ],
+    "notes": "Integrated disease management combining cultural practices with need-based chemical applications is most effective. Always consult local agricultural extension services for recommended products and timing."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/tea/spider_mites.json b/diseases_knowledge_base/tea/spider_mites.json
new file mode 100644
index 0000000000000000000000000000000000000000..dba37e94797d1ef5833f894a2ad91830eebc875e
--- /dev/null
+++ b/diseases_knowledge_base/tea/spider_mites.json
@@ -0,0 +1,135 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "tea.pest_mite.spider_mites",
+  "aliases": [
+    "red spider mite",
+    "tea red spider mite"
+  ],
+  "crop": {
+    "common_name": "tea",
+    "scientific_name": "Camellia sinensis",
+    "family": "Theaceae"
+  },
+  "condition": {
+    "common_name": "spider mites",
+    "scientific_name": "Oligonychus coffeae",
+    "alt_names": [
+      "Tetranychus spp."
+    ],
+    "pathogen": {
+      "type": "arthropod",
+      "taxonomy": {
+        "kingdom": "Animalia",
+        "phylum": "Arthropoda",
+        "class": "Arachnida",
+        "order": "Trombidiformes",
+        "family": "Tetranychidae",
+        "genus": "Oligonychus",
+        "species": "coffeae"
+      }
+    }
+  },
+  "issue_type": "pest_mite",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "wind",
+      "infested plant material",
+      "clothing/equipment of workers"
+    ],
+    "overwintering": [
+      "eggs and adult females on leaves and stems",
+      "in bark crevices"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "hot and dry weather",
+      "prolonged drought",
+      "dusty conditions",
+      "low humidity",
+      "lack of natural enemies due to broad-spectrum insecticide use"
+    ],
+    "temp_c_day": [
+      25,
+      35
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      30,
+      60
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf surface shows fine, pale stippling. Leaves may appear slightly dusty. Webbing is absent or very sparse and difficult to see.",
+    "moderate": "11-40% of leaf surface is affected. Stippling coalesces, causing leaves to develop a distinct bronze or coppery sheen. Fine webbing is visible on close inspection, especially on the leaf underside.",
+    "severe": ">40% of leaf surface is heavily bronzed, brown, or desiccated. Extensive webbing covers leaves and may envelop shoot tips. Premature leaf drop is evident.",
+    "notes": "Severity is measured by the percentage of the upper leaf surface showing feeding damage (stippling, bronzing). The presence and extent of webbing are also key indicators of a severe infestation."
+  },
+  "symptoms": {
+    "leaves": [
+      "Fine, pale yellow or white stippling on the upper leaf surface from feeding.",
+      "Leaves lose their glossy appearance and become dull.",
+      "Stippling coalesces into larger bronze, brown, or coppery patches as infestation increases.",
+      "Fine, silk-like webbing is visible on the underside of leaves, between leaves, and along petioles.",
+      "In severe cases, leaves turn brown, become brittle, and may curl downwards.",
+      "Premature leaf drop (defoliation) occurs under heavy pressure."
+    ],
+    "stems": [
+      "Webbing may cover young stems and shoot tips in heavy infestations."
+    ],
+    "fruit": [],
+    "roots": [],
+    "whole_plant": [
+      "Stunted growth of new shoots.",
+      "The entire plant can appear stressed, dusty, and discolored."
+    ],
+    "signs_microscopic_or_visible": [
+      "Tiny, reddish or yellowish mites (adults, nymphs) visible on the underside of leaves, often requiring a hand lens.",
+      "Tiny, spherical eggs, often laid along the midrib on the leaf underside.",
+      "Cast skins from molting mites may be present on the leaf surface."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "helopeltis_damage",
+      "condition_id": "tea.pest_insect.helopeltis_damage",
+      "key_differences": [
+        "Helopeltis causes discrete, circular, water-soaked spots that turn dark brown/black and necrotic, whereas mite damage is a diffuse stippling or bronzing.",
+        "Helopeltis spots are often larger and more distinct than mite feeding marks.",
+        "Webbing is a key sign of spider mites and is completely absent with Helopeltis damage.",
+        "Helopeltis can cause dieback of young shoots, a symptom less common with mites."
+      ]
+    },
+    {
+      "condition_name": "gray_blight",
+      "condition_id": "tea.fungal.gray_blight",
+      "key_differences": [
+        "Gray blight forms distinct lesions, often with concentric rings (a 'target' appearance) and a grayish-white center, unlike the uniform bronzing from mites.",
+        "Mite damage is a surface discoloration from feeding, while gray blight is a necrotic tissue lesion caused by a fungus.",
+        "Tiny black dots (pycnidia) may be visible within gray blight lesions, which are absent in mite damage.",
+        "Spider mites produce fine webbing; fungal diseases do not."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Maintain high humidity through overhead irrigation or misting where feasible, as mites dislike moisture.",
+      "Avoid water stress by providing adequate irrigation during dry periods.",
+      "Control dust from nearby roads, as it encourages mite outbreaks.",
+      "Prune and destroy heavily infested branches to reduce mite populations."
+    ],
+    "biological": [
+      "Conserve and encourage natural predators like predatory mites (e.g., Phytoseiidae family), ladybugs, and lacewings.",
+      "Avoid using broad-spectrum insecticides that kill natural enemies."
+    ],
+    "chemical": [
+      "Apply selective miticides (acaricides) when mite populations reach economic thresholds.",
+      "Ensure thorough spray coverage, especially on the undersides of leaves where mites congregate.",
+      "Rotate miticides with different modes of action to prevent resistance development."
+    ],
+    "notes": "An Integrated Pest Management (IPM) approach is most effective, combining cultural controls and conservation of natural enemies with judicious use of acaricides."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/tomato/bacterial_spot.json b/diseases_knowledge_base/tomato/bacterial_spot.json
new file mode 100644
index 0000000000000000000000000000000000000000..52e5bd1fca3dabefb4be73b20512cbd155fc0606
--- /dev/null
+++ b/diseases_knowledge_base/tomato/bacterial_spot.json
@@ -0,0 +1,153 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "tomato.disease_bacterial.bacterial_spot",
+  "aliases": [
+    "bacterial leaf spot",
+    "Xanthomonas spot"
+  ],
+  "crop": {
+    "common_name": "tomato",
+    "scientific_name": "Solanum lycopersicum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "bacterial spot",
+    "scientific_name": "Xanthomonas spp. (e.g., X. perforans, X. euvesicatoria, X. vesicatoria, X. gardneri)",
+    "alt_names": [],
+    "pathogen": {
+      "type": "disease_bacterial",
+      "taxonomy": {
+        "kingdom": "Bacteria",
+        "phylum": "Pseudomonadota",
+        "class": "Gammaproteobacteria",
+        "order": "Lysobacterales",
+        "family": "Lysobacteraceae",
+        "genus": "Xanthomonas",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "disease_bacterial",
+  "transmission": {
+    "vectors": [
+      "humans (via tools, hands)"
+    ],
+    "dispersal": [
+      "rain splash",
+      "wind-driven rain",
+      "overhead irrigation",
+      "infected transplants",
+      "contaminated seed"
+    ],
+    "overwintering": [
+      "infected plant debris",
+      "volunteer tomato plants",
+      "contaminated seeds",
+      "solanaceous weeds"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high humidity",
+      "prolonged leaf wetness",
+      "warm temperatures",
+      "poor air circulation",
+      "overhead irrigation"
+    ],
+    "temp_c_day": [
+      24,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 4
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area affected with small, scattered lesions. No significant defoliation.",
+    "moderate": "11-40% of leaf area affected. Some lesions are coalescing. Minor yellowing and leaf drop may be present.",
+    "severe": ">40% of leaf area affected. Widespread lesion coalescence, significant chlorosis (yellowing), and heavy defoliation. Fruit symptoms are prominent.",
+    "notes": "Severity is assessed on the most affected leaves and the overall canopy. The presence and density of fruit lesions should also be considered."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial symptoms are small (<3 mm), dark green to black, water-soaked circular spots.",
+      "Lesions become angular as their expansion is limited by small leaf veins.",
+      "A greasy or oily appearance is often visible on the lesion surface, especially on the leaf underside.",
+      "A narrow, yellow halo may surround the dark lesions, but can be faint or absent.",
+      "Centers of older lesions may dry out, turn tan or grayish-brown, and crack or fall out, creating a 'shot-hole' effect.",
+      "In severe cases, lesions merge, causing large blighted areas and leaf drop (defoliation), starting with lower leaves."
+    ],
+    "stems": [
+      "Stem lesions are elongated, dark brown to black, and may appear slightly raised or scabby."
+    ],
+    "fruit": [
+      "On green fruit, spots start as small, slightly raised, water-soaked pimples.",
+      "Lesions enlarge to become dark brown to black, scabby, and slightly sunken, often up to 8 mm.",
+      "The scabby texture is a key diagnostic feature on fruit.",
+      "A subtle water-soaked halo may surround the scabby fruit lesion.",
+      "Fruit spots are typically superficial and do not penetrate deep into the fruit flesh."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Stunted growth in young, heavily infected plants.",
+      "Significant defoliation, especially of lower leaves, can expose fruit to sunscald."
+    ],
+    "signs_microscopic_or_visible": [
+      "Bacterial streaming from cut lesion tissue when placed in water and viewed under a microscope."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "septoria leaf spot",
+      "condition_id": "tomato.disease_fungal.septoria_leaf_spot",
+      "key_differences": [
+        "Septoria lesions are circular with distinct tan or gray centers and dark brown borders.",
+        "Tiny black specks (pycnidia) are often visible in the center of Septoria lesions.",
+        "Bacterial spot lesions are more angular, darker overall (often black), and lack pycnidia.",
+        "Bacterial spot lesions often have a greasy or water-soaked appearance that Septoria lacks."
+      ]
+    },
+    {
+      "condition_name": "early blight",
+      "condition_id": "tomato.disease_fungal.early_blight",
+      "key_differences": [
+        "Early blight lesions are larger and have a characteristic 'target-like' pattern of concentric rings.",
+        "Bacterial spot lesions are smaller, more angular, and do not have the target-ring pattern.",
+        "Early blight typically produces a more prominent, well-defined yellow halo around lesions.",
+        "Stem lesions from early blight (collar rot) are much larger and more destructive than the small lesions of bacterial spot."
+      ]
+    },
+    {
+      "condition_name": "flea beetle injury",
+      "condition_id": "tomato.pest_damage.flea_beetle_injury",
+      "key_differences": [
+        "Flea beetle damage consists of numerous small, round 'shot-holes' where leaf tissue has been eaten away completely.",
+        "Bacterial spot lesions are solid necrotic spots first; the centers may fall out later, but the initial lesion is not a hole.",
+        "Flea beetle injury lacks any water-soaked appearance, yellow halos, or greasy texture."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified disease-free seed and transplants.",
+      "Practice a 3-4 year crop rotation with non-solanaceous crops.",
+      "Improve air circulation via proper plant spacing, staking, and pruning.",
+      "Avoid overhead irrigation; use drip or furrow irrigation to keep foliage dry.",
+      "Remove and destroy infected plant debris at the end of the season.",
+      "Sanitize tools, stakes, and equipment between plants or rows."
+    ],
+    "biological": [
+      "Application of bio-fungicides containing *Bacillus subtilis* or other beneficial microbes may suppress pathogen populations."
+    ],
+    "chemical": [
+      "Preventative applications of copper-based bactericides (e.g., copper hydroxide).",
+      "Tank-mixing copper with mancozeb can improve efficacy and manage resistance.",
+      "Application of plant defense inducers like acibenzolar-S-methyl (Actigard)."
+    ],
+    "notes": "Chemical control is most effective when applied preventatively before disease onset. Widespread copper resistance in bacterial populations can limit the effectiveness of copper-only sprays."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/tomato/cercospora_leaf_spot.json b/diseases_knowledge_base/tomato/cercospora_leaf_spot.json
new file mode 100644
index 0000000000000000000000000000000000000000..1450046e0ba5ba61d73344211dd4d7d79cb20ca6
--- /dev/null
+++ b/diseases_knowledge_base/tomato/cercospora_leaf_spot.json
@@ -0,0 +1,151 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "tomato.disease_fungal.cercospora_leaf_spot",
+  "aliases": [
+    "Gray leaf spot"
+  ],
+  "crop": {
+    "common_name": "tomato",
+    "scientific_name": "Solanum lycopersicum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "cercospora leaf spot",
+    "scientific_name": "Cercospora spp.",
+    "alt_names": [
+      "Gray leaf spot"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Capnodiales",
+        "family": "Mycosphaerellaceae",
+        "genus": "Cercospora",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [
+      "wind",
+      "rain splash",
+      "irrigation water"
+    ],
+    "dispersal": [
+      "airborne conidia",
+      "contaminated tools",
+      "human activity"
+    ],
+    "overwintering": [
+      "infected crop debris",
+      "soil",
+      "alternate weed hosts",
+      "infected seed"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "prolonged leaf wetness",
+      "high humidity",
+      "poor air circulation",
+      "warm temperatures",
+      "overhead irrigation"
+    ],
+    "temp_c_day": [
+      20,
+      30
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 8
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "< 5% of leaf area affected with distinct lesions.",
+    "moderate": "5-25% of leaf area affected, some lesion coalescence, minor yellowing.",
+    "severe": "> 25% of leaf area affected, extensive lesion coalescence, significant yellowing and defoliation, especially on lower leaves.",
+    "notes": "Severity is assessed on individual symptomatic leaves or averaged across the visible canopy. Focus on the most affected leaves for a worst-case assessment."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial symptoms are small, circular, water-soaked spots, primarily on older, lower leaves.",
+      "Lesions enlarge to 2-6 mm in diameter.",
+      "Mature lesions have a distinct tan to grayish-white center.",
+      "A dark brown to black border surrounds the necrotic center.",
+      "The center of the lesion may become brittle and crack or fall out, creating a 'shot-hole' appearance.",
+      "A diffuse yellow halo may sometimes surround the lesion, but is often absent.",
+      "In severe cases, entire leaves turn yellow, then brown, and wither.",
+      "Symptoms progress from the bottom of the plant upwards."
+    ],
+    "stems": [
+      "Elongated, sunken lesions with gray centers and dark borders can form on petioles and stems."
+    ],
+    "fruit": [
+      "Fruit infection is rare but can occur, appearing as small, sunken, dark spots on the calyx end."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Significant defoliation of the lower canopy, exposing fruit to sunscald.",
+      "Reduced plant vigor and yield in severe infections."
+    ],
+    "signs_microscopic_or_visible": [
+      "Under high humidity and with a hand lens, a sparse, fuzzy, grayish mold (conidiophores and conidia) may be visible in the lesion center."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "septoria leaf spot",
+      "condition_id": "tomato.disease_fungal.septoria_leaf_spot",
+      "key_differences": [
+        "Septoria lesions are typically smaller (1-3 mm) than Cercospora lesions.",
+        "Septoria lesions contain tiny, black, pimple-like structures (pycnidia) in the center, which are absent in Cercospora.",
+        "The 'shot-hole' effect is less common in Septoria compared to Cercospora.",
+        "Septoria lesions often have a more defined, dark brown margin with a less prominent gray center."
+      ]
+    },
+    {
+      "condition_name": "early blight",
+      "condition_id": "tomato.disease_fungal.early_blight",
+      "key_differences": [
+        "Early blight lesions are much larger and feature a characteristic 'target' or 'bullseye' pattern of concentric rings.",
+        "Early blight lesions are dark brown to black and typically surrounded by a prominent yellow halo.",
+        "Cercospora lesions are smaller, have a gray/tan center, and lack the distinct target pattern."
+      ]
+    },
+    {
+      "condition_name": "bacterial_spot",
+      "condition_id": "tomato.disease_bacterial.bacterial_spot",
+      "key_differences": [
+        "Bacterial spot lesions are often angular, appearing limited by leaf veins, whereas Cercospora spots are more circular.",
+        "Bacterial spots start as dark, water-soaked, greasy-looking areas and may not develop a pale center.",
+        "The 'shot-hole' effect in bacterial spot is often due to tissue tearing rather than a brittle center falling out."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified disease-free seed and resistant cultivars if available.",
+      "Practice crop rotation with non-host crops (non-Solanaceae) for at least 2 years.",
+      "Remove and destroy infected plant debris after harvest.",
+      "Improve air circulation through proper plant spacing and pruning.",
+      "Avoid overhead irrigation; use drip or furrow irrigation to keep foliage dry.",
+      "Control weed hosts in and around the growing area."
+    ],
+    "biological": [
+      "Application of bio-fungicides containing strains of *Bacillus subtilis* or *Trichoderma* may suppress the pathogen."
+    ],
+    "chemical": [
+      "Apply protective fungicides containing chlorothalonil, mancozeb, or copper compounds.",
+      "Systemic fungicides (e.g., strobilurins, triazoles) can also be effective but require resistance management.",
+      "Begin applications when conditions are favorable for disease or at first sign of symptoms."
+    ],
+    "notes": "An integrated pest management (IPM) approach combining cultural, biological, and chemical strategies is most effective for long-term control."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/tomato/early_blight.json b/diseases_knowledge_base/tomato/early_blight.json
new file mode 100644
index 0000000000000000000000000000000000000000..e057defe2cff51730ae14cfe61be78feba839a49
--- /dev/null
+++ b/diseases_knowledge_base/tomato/early_blight.json
@@ -0,0 +1,159 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "tomato.disease_fungal.early_blight",
+  "aliases": [
+    "Alternaria leaf spot",
+    "target spot of tomato"
+  ],
+  "crop": {
+    "common_name": "tomato",
+    "scientific_name": "Solanum lycopersicum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "early blight",
+    "scientific_name": "Alternaria solani",
+    "alt_names": [
+      "Alternaria tomatophila"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Pleosporales",
+        "family": "Pleosporaceae",
+        "genus": "Alternaria",
+        "species": "solani"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "wind",
+      "rain splash",
+      "irrigation water",
+      "contaminated equipment",
+      "infected seed"
+    ],
+    "overwintering": [
+      "infected plant debris",
+      "soil",
+      "infected seed",
+      "solanaceous weeds"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high humidity",
+      "prolonged leaf wetness",
+      "warm temperatures",
+      "plant stress (e.g., nutrient deficiency, heavy fruit load)"
+    ],
+    "temp_c_day": [
+      24,
+      29
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 9
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "< 5% of total foliage affected; few, small lesions, primarily on lower leaves.",
+    "moderate": "5-25% of foliage affected; lesions present on lower and middle leaves, some leaf yellowing and drop.",
+    "severe": "> 25% of foliage affected; extensive lesion development, significant defoliation, stem and fruit lesions common.",
+    "notes": "Severity is assessed based on the percentage of symptomatic leaf area across the entire plant. Stem and fruit symptoms contribute to a higher severity rating."
+  },
+  "symptoms": {
+    "leaves": [
+      "Starts as small, dark brown to black spots on lower, older leaves.",
+      "Lesions enlarge to 0.5-1.5 cm in diameter.",
+      "Lesions develop characteristic concentric rings, creating a 'target' or 'bull's-eye' appearance.",
+      "A distinct yellow halo often surrounds the dark lesion.",
+      "Affected leaves turn yellow (chlorotic) and may drop prematurely, starting from the bottom of the plant.",
+      "Lesions can merge, causing large blighted areas."
+    ],
+    "stems": [
+      "Dark, slightly sunken, oval-shaped lesions can form on stems, often near the soil line (collar rot).",
+      "Stem lesions also exhibit the characteristic concentric rings."
+    ],
+    "fruit": [
+      "Dark, leathery, sunken lesions form on the fruit, typically at the stem end (calyx).",
+      "Fruit lesions also show concentric rings.",
+      "In humid conditions, a velvety black mass of fungal spores may cover fruit lesions."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Progressive defoliation from the bottom of the plant upwards.",
+      "Reduced plant vigor and yield."
+    ],
+    "signs_microscopic_or_visible": [
+      "Velvety, dark brown or black fungal growth (spores) may be visible in the center of lesions under high humidity."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "septoria_leaf_spot",
+      "condition_id": "tomato.disease_fungal.septoria_leaf_spot",
+      "key_differences": [
+        "Septoria lesions are smaller (1-3 mm) and more numerous than early blight lesions.",
+        "Septoria lesions have a tan or gray center with a dark brown border, but lack the distinct concentric rings of early blight.",
+        "Tiny black specks (pycnidia) are often visible in the center of Septoria lesions."
+      ]
+    },
+    {
+      "condition_name": "late_blight",
+      "condition_id": "tomato.disease_oomycete.late_blight",
+      "key_differences": [
+        "Late blight lesions are larger, water-soaked, and irregularly shaped with a greasy appearance.",
+        "Late blight lesions lack the 'target' or 'bull's-eye' rings of early blight.",
+        "A white, fuzzy mold (sporangia) often develops on the underside of late blight lesions in cool, moist conditions.",
+        "Late blight progresses much more rapidly, capable of destroying a plant in days."
+      ]
+    },
+    {
+      "condition_name": "target_spot",
+      "condition_id": "tomato.disease_fungal.target_spot",
+      "key_differences": [
+        "Target spot lesions often have a lighter tan center with more defined, darker concentric rings than early blight.",
+        "Lesions may have a 'shot-hole' appearance as the center falls out.",
+        "Target spot lesions tend to be smaller and more numerous than classic early blight lesions."
+      ]
+    },
+    {
+      "condition_name": "bacterial_spot",
+      "condition_id": "tomato.disease_bacterial.bacterial_spot",
+      "key_differences": [
+        "Bacterial spot lesions are typically small, angular (limited by leaf veins), and initially water-soaked.",
+        "Lesions lack the concentric rings of early blight and often have a greasy appearance.",
+        "Bacterial spots may not have a prominent yellow halo."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified disease-free seed and transplants.",
+      "Rotate crops, avoiding solanaceous plants for 2-3 years.",
+      "Maintain proper plant spacing for good air circulation.",
+      "Use mulch to reduce soil splash onto lower leaves.",
+      "Prune and remove lower, infected leaves.",
+      "Avoid overhead irrigation; use drip irrigation instead.",
+      "Ensure balanced plant nutrition."
+    ],
+    "biological": [
+      "Application of bio-fungicides containing Bacillus subtilis or Trichoderma species."
+    ],
+    "chemical": [
+      "Application of preventative or curative fungicides containing active ingredients like chlorothalonil, mancozeb, or copper-based compounds.",
+      "Follow label instructions and alternate fungicide classes to prevent resistance."
+    ],
+    "notes": "Integrated pest management (IPM) combining cultural, biological, and chemical strategies is most effective. Fungicide applications are most effective when applied preventatively based on weather forecasts."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/tomato/flea_beetle_injury.json b/diseases_knowledge_base/tomato/flea_beetle_injury.json
new file mode 100644
index 0000000000000000000000000000000000000000..fb79d86386d5a47aab7358950db23db174e7de46
--- /dev/null
+++ b/diseases_knowledge_base/tomato/flea_beetle_injury.json
@@ -0,0 +1,139 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "tomato.unknown.flea_beetle_injury",
+  "aliases": [
+    "flea beetle damage",
+    "shot-hole feeding"
+  ],
+  "crop": {
+    "common_name": "tomato",
+    "scientific_name": "Solanum lycopersicum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "flea beetle injury",
+    "scientific_name": "Epitrix spp.",
+    "alt_names": [
+      "flea beetle feeding damage"
+    ],
+    "pathogen": {
+      "type": "Insect",
+      "taxonomy": {
+        "kingdom": "Animalia",
+        "phylum": "Arthropoda",
+        "class": "Insecta",
+        "order": "Coleoptera",
+        "family": "Chrysomelidae",
+        "genus": "Epitrix",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [
+      "Adult flea beetles"
+    ],
+    "dispersal": [
+      "Flying",
+      "Jumping"
+    ],
+    "overwintering": [
+      "In soil",
+      "In plant debris",
+      "In weedy areas near fields"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Presence of weedy hosts (e.g., nightshades, horsenettle)",
+      "Warm, sunny conditions, especially after transplanting",
+      "Fields adjacent to overwintering sites like woods or weedy borders"
+    ],
+    "temp_c_day": [
+      21,
+      29
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area on affected leaves shows small pits or holes. Damage is cosmetic.",
+    "moderate": "11-40% of leaf area is affected. Numerous holes are present, some may coalesce, causing a tattered appearance.",
+    "severe": ">40% of leaf area is affected. Significant defoliation or skeletonization, leading to stunted growth or death, especially in seedlings.",
+    "notes": "Severity is most critical on young seedlings which are highly vulnerable. Established plants can tolerate substantial foliar damage. The rubric measures the percentage of affected leaf area on the most symptomatic leaves."
+  },
+  "symptoms": {
+    "leaves": [
+      "Numerous small, round, 'shot-holes' (1-2 mm) that penetrate the leaf.",
+      "Small pits or scraped areas on the leaf surface that do not go all the way through.",
+      "Damage is most concentrated on cotyledons and the youngest leaves.",
+      "Heavy feeding can cause leaves to appear tattered, lace-like, or skeletonized.",
+      "Tissue immediately surrounding the feeding holes may turn yellow or brown.",
+      "Small (1.5-3 mm), dark, shiny beetles may be visible on leaves and will jump when disturbed."
+    ],
+    "stems": [
+      "Superficial pitting or feeding marks may occur on the stems of young seedlings."
+    ],
+    "fruit": [
+      "Feeding damage on fruit is uncommon and typically consists of minor, superficial scarring."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Stunted growth, wilting, or plant death in heavily infested seedlings.",
+      "Mature plants generally tolerate damage well unless pest populations are extremely high."
+    ],
+    "signs_microscopic_or_visible": [
+      "Presence of small, dark, often metallic-sheened beetles.",
+      "Beetles have characteristically large hind legs and jump like fleas when approached."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "bacterial_spot",
+      "condition_id": "tomato.bacterial.bacterial_spot",
+      "key_differences": [
+        "Bacterial spot lesions are initially water-soaked and often have a distinct yellow halo.",
+        "Lesions from bacterial spot are typically angular, constrained by leaf veins, not perfectly round holes.",
+        "Bacterial spot does not create a clean, 'punched-out' hole through the leaf."
+      ]
+    },
+    {
+      "condition_name": "septoria_leaf_spot",
+      "condition_id": "tomato.fungal.septoria_leaf_spot",
+      "key_differences": [
+        "Septoria lesions are circular spots with dark brown borders and tan or gray centers.",
+        "Tiny black specks (pycnidia, the fungal fruiting bodies) are often visible in the center of Septoria lesions.",
+        "Septoria spots are lesions within the leaf tissue, not complete holes passing through it."
+      ]
+    },
+    {
+      "condition_name": "spider_mites",
+      "condition_id": "tomato.pest.spider_mites",
+      "key_differences": [
+        "Spider mite damage appears as fine, yellowish or whitish stippling on the leaf surface, not distinct holes.",
+        "Fine webbing is often visible on the undersides of leaves or where leaves join the stem.",
+        "The causal agents are tiny arachnids, not jumping beetles."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use floating row covers to protect young transplants.",
+      "Control nearby weedy hosts, especially those in the nightshade family.",
+      "Delay planting until seedlings are larger and more vigorous.",
+      "Maintain good plant health with proper watering and fertilization to help them outgrow damage."
+    ],
+    "biological": [
+      "Encourage natural predators like predatory nematodes, braconid wasps, and big-eyed bugs.",
+      "Applications of entomopathogenic nematodes to the soil can target the larval stage."
+    ],
+    "chemical": [
+      "Apply insecticides such as spinosad, pyrethrins, or kaolin clay (as a suppressant).",
+      "Treatment is most effective and necessary when seedlings are young and damage is first observed."
+    ],
+    "notes": "Management is most critical during the first few weeks after transplanting. Mature, healthy plants can typically withstand significant flea beetle feeding without yield loss."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/tomato/fusarium_wilt.json b/diseases_knowledge_base/tomato/fusarium_wilt.json
new file mode 100644
index 0000000000000000000000000000000000000000..51083bd6804d5987b02e94a7d88136a8b46dafae
--- /dev/null
+++ b/diseases_knowledge_base/tomato/fusarium_wilt.json
@@ -0,0 +1,149 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "tomato.disease_fungal.fusarium_wilt",
+  "aliases": [
+    "Tomato wilt",
+    "Fusarium wilt of tomato"
+  ],
+  "crop": {
+    "common_name": "Tomato",
+    "scientific_name": "Solanum lycopersicum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "Fusarium wilt",
+    "scientific_name": "Fusarium oxysporum f. sp. lycopersici",
+    "alt_names": [],
+    "pathogen": {
+      "type": "fungus",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Sordariomycetes",
+        "order": "Hypocreales",
+        "family": "Nectriaceae",
+        "genus": "Fusarium",
+        "species": "oxysporum"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [
+      "Infected transplants",
+      "Contaminated equipment (tillage, stakes)",
+      "Human activity (boots, tools)"
+    ],
+    "dispersal": [
+      "Soilborne chlamydospores",
+      "Water (irrigation, surface runoff)",
+      "Infected seed (less common)"
+    ],
+    "overwintering": [
+      "As chlamydospores in soil for many years",
+      "In infected plant debris",
+      "On roots of some non-host weeds"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Warm soil temperatures",
+      "Acidic soil (pH 5.0-5.6)",
+      "High nitrogen, low potassium fertility",
+      "Poorly drained or compacted soil",
+      "Root-knot nematode infestation (creates wounds for entry)"
+    ],
+    "temp_c_day": [
+      25,
+      32
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "One or a few lower leaves are yellowing or drooping, often on one side of the plant or a single branch.",
+    "moderate": "Significant yellowing and wilting affecting multiple branches or a major portion of the lower to middle plant. Some stunting may be visible.",
+    "severe": "Widespread wilting of the entire plant, extensive browning and leaf drop, severe stunting, or plant death.",
+    "notes": "Severity is assessed based on the proportion of the plant showing wilting and yellowing symptoms, as this is a systemic vascular disease. It often progresses from the bottom of the plant upwards."
+  },
+  "symptoms": {
+    "leaves": [
+      "Yellowing of lower, older leaves, often starting on one side of a leaf or branch (unilateral).",
+      "Affected leaves wilt during the day and may recover slightly at night initially.",
+      "Petioles (leaf stalks) bend downwards, creating a drooping appearance.",
+      "Leaves eventually turn brown, wither, and die but often remain attached to the stem."
+    ],
+    "stems": [
+      "No external lesions, spots, or cankers are typically visible on the stem.",
+      "When the main stem is cut open lengthwise near the soil line, a distinct dark brown discoloration of the vascular tissue (xylem) is visible.",
+      "The pith (the central core of the stem) remains white or cream-colored."
+    ],
+    "fruit": [
+      "Fruit development may be stunted or fail completely on heavily infected plants.",
+      "No direct symptoms, such as lesions or rot, appear on the fruit itself."
+    ],
+    "roots": [
+      "In advanced stages, some root decay and browning may occur, but early root symptoms are not diagnostic."
+    ],
+    "whole_plant": [
+      "Stunting is a common symptom, especially if infected when young.",
+      "Unilateral wilting, where one side of the plant or a single branch wilts while the other appears healthy, is a classic symptom.",
+      "The entire plant eventually wilts permanently and dies."
+    ],
+    "signs_microscopic_or_visible": [
+      "No visible fungal growth (e.g., mold, mildew) is present on the exterior of the plant."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Late blight",
+      "condition_id": "tomato.disease_fungal.late_blight",
+      "key_differences": [
+        "Late blight causes large, dark, water-soaked lesions on leaves and dark brown lesions on stems, which are absent in Fusarium wilt.",
+        "Late blight can show fuzzy white mold on the underside of leaf lesions in humid conditions; Fusarium shows no external signs.",
+        "Late blight progresses extremely rapidly, killing foliage in days, while Fusarium wilt is typically a slower decline.",
+        "Fusarium wilt symptoms start at the bottom of the plant and move up; Late blight can start anywhere on the plant."
+      ]
+    },
+    {
+      "condition_name": "Yellowing symptom",
+      "condition_id": "tomato.abiotic.yellowing_symptom",
+      "key_differences": [
+        "Yellowing from nutrient deficiency (e.g., nitrogen) is typically symmetrical, affecting all lower leaves evenly, not one-sided.",
+        "Nutrient deficiency does not cause wilting unless extremely severe.",
+        "Cutting the stem of a nutrient-deficient plant will not reveal the brown vascular discoloration characteristic of Fusarium wilt."
+      ]
+    },
+    {
+      "condition_name": "Spider mites",
+      "condition_id": "tomato.pest.spider_mites",
+      "key_differences": [
+        "Spider mite damage appears as fine, yellow stippling or tiny dots on leaves, not large, uniform yellowed areas.",
+        "Fine webbing is often visible on the undersides of leaves with spider mites.",
+        "Spider mite damage does not cause the plant to wilt systemically.",
+        "The cause (tiny mites) may be visible with magnification on the leaf underside."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant certified disease-free seeds and transplants.",
+      "Select resistant tomato varieties (look for 'F' in the variety code, indicating resistance to race 1, 'F2' for races 1 and 2, etc.).",
+      "Rotate crops for at least 3-4 years, avoiding other solanaceous hosts.",
+      "Maintain soil pH between 6.5 and 7.0 to suppress the pathogen.",
+      "Sanitize all tools, stakes, and equipment between uses.",
+      "Remove and destroy infected plants immediately to reduce soil inoculum."
+    ],
+    "biological": [
+      "Inoculating soil with beneficial microbes like *Trichoderma* spp. or non-pathogenic *Fusarium* strains can suppress the pathogen."
+    ],
+    "chemical": [
+      "Pre-plant soil fumigation is effective but typically only used in large-scale commercial production.",
+      "No effective foliar fungicides are available for treatment, as the pathogen is inside the plant's vascular system.",
+      "Soil-drench fungicides may offer some protection but are not curative once infection is established."
+    ],
+    "notes": "The most effective management strategy is prevention through the use of resistant varieties and good cultural practices."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/tomato/healthy.json b/diseases_knowledge_base/tomato/healthy.json
new file mode 100644
index 0000000000000000000000000000000000000000..f5d05441cd280d3d3b7d7002ffefca3f5e603bff
--- /dev/null
+++ b/diseases_knowledge_base/tomato/healthy.json
@@ -0,0 +1,142 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "tomato.healthy.healthy",
+  "aliases": [
+    "normal",
+    "unaffected",
+    "asymptomatic",
+    "no disease"
+  ],
+  "crop": {
+    "common_name": "tomato",
+    "scientific_name": "Solanum lycopersicum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "healthy",
+    "scientific_name": null,
+    "alt_names": [
+      "normal growth"
+    ],
+    "pathogen": {
+      "type": "physiological",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "healthy",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Optimal growing conditions",
+      "Adequate sunlight (6-8+ hours/day)",
+      "Consistent watering and soil moisture",
+      "Balanced soil nutrition",
+      "Good air circulation"
+    ],
+    "temp_c_day": [
+      21,
+      29
+    ],
+    "temp_c_night": [
+      16,
+      21
+    ],
+    "relative_humidity_pct": [
+      60,
+      80
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Not applicable. Plant is considered healthy.",
+    "moderate": "Not applicable.",
+    "severe": "Not applicable.",
+    "notes": "A plant is considered healthy if it shows no signs of disease, stress, or nutrient deficiency. Any deviation would be classified under a different condition."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uniformly green color, consistent with the cultivar.",
+      "Leaves are fully expanded and turgid.",
+      "No spots, lesions, discoloration, or necrosis.",
+      "No yellowing (chlorosis) or browning.",
+      "No curling, puckering, or distortion of leaf shape.",
+      "No visible stippling, webbing, or insect trails."
+    ],
+    "stems": [
+      "Sturdy, upright, and able to support the plant.",
+      "Consistent green to brownish color without dark streaks or cankers.",
+      "No soft, water-soaked, or discolored areas."
+    ],
+    "fruit": [
+      "Smooth, unblemished skin.",
+      "Uniform color development appropriate for the variety and ripeness stage.",
+      "Free from cracks, spots, sunken areas, or mold."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Vigorous and upright growth habit.",
+      "Appropriate size and development for its age and cultivar.",
+      "No general wilting, stunting, or decline."
+    ],
+    "signs_microscopic_or_visible": [
+      "No visible fungal growth (e.g., mycelium, powdery mildew).",
+      "No bacterial ooze or slime.",
+      "Absence of insect eggs, larvae, or frass."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Early Blight",
+      "condition_id": "tomato.fungal.early_blight",
+      "key_differences": [
+        "Healthy leaves lack the characteristic dark, circular lesions with a 'target' or 'bullseye' pattern.",
+        "Healthy plants do not show yellowing halos around spots.",
+        "Healthy lower leaves remain green and attached, unlike the premature yellowing and dropping seen in early blight."
+      ]
+    },
+    {
+      "condition_name": "Spider Mites",
+      "condition_id": "tomato.pest.spider_mites",
+      "key_differences": [
+        "Healthy leaves have a smooth, uniformly green surface, not the fine yellow or white stippling caused by mite feeding.",
+        "The undersides of healthy leaves are clean and lack the fine silk webbing produced by spider mites.",
+        "Healthy leaves do not have a dusty or 'bronzed' appearance."
+      ]
+    },
+    {
+      "condition_name": "Yellowing Symptom",
+      "condition_id": "tomato.symptom.yellowing_symptom",
+      "key_differences": [
+        "Healthy leaves maintain a uniform, rich green color, not the pale green or yellow of chlorosis.",
+        "The green color in healthy leaves is consistent across the entire leaf, not patterned between the veins (interveinal chlorosis).",
+        "Healthy plants show no specific pattern of yellowing on old vs. new leaves, which often indicates a nutrient deficiency."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Select disease-resistant cultivars.",
+      "Ensure proper plant spacing to promote air circulation.",
+      "Water at the base of the plant to keep foliage dry.",
+      "Use well-drained soil and apply balanced fertilizer.",
+      "Practice crop rotation.",
+      "Maintain good sanitation by removing weeds and plant debris."
+    ],
+    "biological": [],
+    "chemical": [],
+    "notes": "Management for a healthy plant focuses on preventative cultural practices to maintain vigor and reduce stress, making the plant less susceptible to future issues."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/tomato/late_blight.json b/diseases_knowledge_base/tomato/late_blight.json
new file mode 100644
index 0000000000000000000000000000000000000000..d7d225c9b051d74efee2bd1574c53fd3f05ad4d4
--- /dev/null
+++ b/diseases_knowledge_base/tomato/late_blight.json
@@ -0,0 +1,147 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "tomato.disease_fungal.late_blight",
+  "aliases": [
+    "Phytophthora blight",
+    "potato blight on tomato"
+  ],
+  "crop": {
+    "common_name": "tomato",
+    "scientific_name": "Solanum lycopersicum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "late blight",
+    "scientific_name": "Phytophthora infestans",
+    "alt_names": [
+      "Phytophthora blight"
+    ],
+    "pathogen": {
+      "type": "disease_oomycete",
+      "taxonomy": {
+        "kingdom": "Stramenopila",
+        "phylum": "Oomycota",
+        "class": "Oomycetes",
+        "order": "Peronosporales",
+        "family": "Peronosporaceae",
+        "genus": "Phytophthora",
+        "species": "P. infestans"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "wind-blown sporangia",
+      "rain splash",
+      "infected transplants",
+      "contaminated equipment"
+    ],
+    "overwintering": [
+      "infected potato tubers",
+      "infected tomato volunteers",
+      "plant debris in soil"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "cool, moist conditions",
+      "prolonged leaf wetness",
+      "high humidity",
+      "dense plant canopy"
+    ],
+    "temp_c_day": [
+      15,
+      21
+    ],
+    "temp_c_night": [
+      10,
+      15
+    ],
+    "relative_humidity_pct": [
+      90,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 10
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of total leaf area affected; a few isolated lesions.",
+    "moderate": "11-40% of leaf area affected; multiple lesions coalescing, some stem lesions may be present.",
+    "severe": ">40% of leaf area affected; extensive blighting, stem girdling, fruit rot is common, plant collapse imminent.",
+    "notes": "Severity is assessed on a whole-plant basis, considering the percentage of foliage showing symptoms of necrosis and blighting. Fruit and stem symptoms can significantly increase severity."
+  },
+  "symptoms": {
+    "leaves": [
+      "Large, water-soaked, gray-green to dark brown lesions, often appearing on leaf edges or tips.",
+      "Lesions expand rapidly and have an irregular, blotchy shape.",
+      "A pale green or yellow halo may surround the necrotic lesion.",
+      "Under humid conditions, a fuzzy, white mold is visible on the underside of the leaf, especially at the lesion margin."
+    ],
+    "stems": [
+      "Large, dark brown to black, greasy-appearing lesions.",
+      "Lesions can girdle the stem, causing the plant parts above to wilt and die.",
+      "White, fuzzy mold may also appear on stem lesions in high humidity."
+    ],
+    "fruit": [
+      "Large, firm, greasy-looking, dark brown to olive-colored blotches on green or ripening fruit.",
+      "The surface of the fruit lesion is often rough or bumpy.",
+      "The rot extends deep into the fruit flesh."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Rapid wilting and collapse of the entire plant when stems are girdled.",
+      "A characteristic musty or decaying odor may be present in severe infections."
+    ],
+    "signs_microscopic_or_visible": [
+      "White, downy or fuzzy growth (sporangiophores and sporangia) on the underside of leaves and on stem/fruit lesions, especially in the morning or during humid weather."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "early blight",
+      "condition_id": "tomato.disease_fungal.early_blight",
+      "key_differences": [
+        "Early blight lesions have distinct concentric rings ('target spots'), which are absent in late blight.",
+        "Late blight lesions are larger, more water-soaked and irregular.",
+        "Early blight typically starts on lower, older leaves, while late blight can start anywhere on the plant."
+      ]
+    },
+    {
+      "condition_name": "septoria leaf spot",
+      "condition_id": "tomato.disease_fungal.septoria_leaf_spot",
+      "key_differences": [
+        "Septoria spots are much smaller (1-3 mm), circular, and have a tan or gray center with a dark border.",
+        "Tiny black dots (pycnidia) are visible in the center of Septoria spots; these are absent in late blight.",
+        "Late blight causes large, rapidly expanding blotches, not small, numerous spots."
+      ]
+    },
+    {
+      "condition_name": "leaf mold",
+      "condition_id": "tomato.disease_fungal.leaf_mold",
+      "key_differences": [
+        "Leaf mold produces a dense, olive-green to brown velvety mold on the leaf underside, whereas late blight's mold is white and sparser.",
+        "The upper leaf surface with leaf mold shows yellow spots, not the large, water-soaked necrotic lesions of late blight.",
+        "Late blight lesions are dark and necrotic on both sides of the leaf."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified disease-free seeds and transplants.",
+      "Ensure good air circulation through proper plant spacing and pruning.",
+      "Avoid overhead irrigation; use drip irrigation to keep foliage dry.",
+      "Remove and destroy infected plants and debris promptly.",
+      "Rotate crops, avoiding planting tomatoes or potatoes in the same spot for 3-4 years."
+    ],
+    "biological": [
+      "Application of bio-fungicides containing Bacillus subtilis or copper-based compounds (e.g., copper hydroxide) can be suppressive."
+    ],
+    "chemical": [
+      "Preventative application of protectant fungicides like chlorothalonil or mancozeb.",
+      "Curative application of systemic fungicides like metalaxyl, mefenoxam, or cymoxanil once disease is detected."
+    ],
+    "notes": "Consult local extension services for recommended fungicides and spray schedules, as resistance management is critical. Predictive models based on weather data can help time applications."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/tomato/leaf_curl_virus.json b/diseases_knowledge_base/tomato/leaf_curl_virus.json
new file mode 100644
index 0000000000000000000000000000000000000000..b5afcc72192535a9810784c1691aee2da7fc7456
--- /dev/null
+++ b/diseases_knowledge_base/tomato/leaf_curl_virus.json
@@ -0,0 +1,135 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "tomato.disease_viral.leaf_curl_virus",
+  "aliases": [
+    "TLCV",
+    "Tomato leaf curl disease"
+  ],
+  "crop": {
+    "common_name": "tomato",
+    "scientific_name": "Solanum lycopersicum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "Leaf Curl Virus",
+    "scientific_name": "Tomato leaf curl virus",
+    "alt_names": [
+      "TLCV",
+      "Tomato leaf curl"
+    ],
+    "pathogen": {
+      "type": "disease_viral",
+      "taxonomy": {
+        "kingdom": "Viruses",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "Geminiviridae",
+        "genus": "Begomovirus",
+        "species": "Tomato leaf curl virus complex"
+      }
+    }
+  },
+  "issue_type": "disease_viral",
+  "transmission": {
+    "vectors": [
+      "Whiteflies (Bemisia tabaci)"
+    ],
+    "dispersal": [
+      "Movement of viruliferous whiteflies",
+      "Transport of infected seedlings or plants"
+    ],
+    "overwintering": [
+      "In infected perennial host plants (including weeds)",
+      "In adult whiteflies in warm climates"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High whitefly populations",
+      "Warm, dry weather conditions that favor whitefly reproduction and migration",
+      "Proximity to infected fields or alternative weed hosts"
+    ],
+    "temp_c_day": [
+      25,
+      35
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Slight upward curling on leaves of a few branches. Minor yellowing may be present. No significant plant stunting.",
+    "moderate": "Most leaves on the plant show distinct upward curling and yellowing. Plant is visibly stunted compared to healthy plants of the same age.",
+    "severe": "Entire plant is severely stunted with a bushy appearance. Leaves are small, thickened, leathery, and strongly cupped upward. Little to no fruit production.",
+    "notes": "Severity is assessed based on the degree of plant stunting and the proportion of foliage showing characteristic curling, yellowing, and deformation. Early infection leads to more severe symptoms."
+  },
+  "symptoms": {
+    "leaves": [
+      "Distinct upward curling or cupping of leaf margins.",
+      "Leaves become thickened, leathery, and brittle to the touch.",
+      "General yellowing (chlorosis) of foliage, sometimes with green veins.",
+      "Reduction in leaf size (microphylla).",
+      "Veins on the underside of leaves may turn purple in some varieties."
+    ],
+    "stems": [
+      "Shortened internodes, giving the plant a compact, bushy appearance."
+    ],
+    "fruit": [
+      "Significant reduction in fruit set.",
+      "Failure to produce fruit if infected at an early stage.",
+      "Fruits that do develop may be smaller than normal and of poor quality."
+    ],
+    "roots": [
+      "Root system is often underdeveloped due to overall stunting of the plant."
+    ],
+    "whole_plant": [
+      "Severe stunting is a primary characteristic, especially with early infection.",
+      "Overall bushy and compact growth habit."
+    ],
+    "signs_microscopic_or_visible": [
+      "Presence of adult whiteflies or their nymphs, often found on the undersides of leaves."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Yellow Leaf Curl Virus",
+      "condition_id": "tomato.disease_viral.yellow_leaf_curl_virus",
+      "key_differences": [
+        "Symptoms are nearly identical and often indistinguishable in the field; requires molecular testing for confirmation.",
+        "TYLCV typically causes more intense, brilliant yellowing of leaf margins compared to some TLCV strains.",
+        "TYLCV often results in more severe stunting and a more pronounced upward cupping of the leaves.",
+        "TLCV may sometimes cause more leaf distortion and blistering than typical TYLCV."
+      ]
+    },
+    {
+      "condition_name": "Mosaic Virus",
+      "condition_id": "tomato.disease_viral.mosaic_virus",
+      "key_differences": [
+        "Mosaic virus causes mottled light green/yellow and dark green patches on leaves, not the uniform yellowing and upward curl of TLCV.",
+        "TLCV causes leaves to become thick and leathery; mosaic virus does not typically cause this change in texture.",
+        "Mosaic virus can cause 'fernleaf' symptoms (narrowing of leaves), which is distinct from the cupping caused by TLCV.",
+        "Severe stunting and a bushy habit are hallmarks of TLCV, while stunting in mosaic virus is often less pronounced."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use virus-free, certified transplants.",
+      "Control whitefly populations by installing insect-proof nets on nurseries and greenhouses.",
+      "Promptly remove and destroy infected plants (roguing) to reduce inoculum.",
+      "Manage weed hosts in and around the field that can harbor the virus and vectors.",
+      "Use reflective (e.g., silver) plastic mulches to repel whiteflies."
+    ],
+    "biological": [
+      "Conserve and encourage natural enemies of whiteflies, such as predatory beetles, lacewings, and parasitic wasps."
+    ],
+    "chemical": [
+      "Apply systemic insecticides at planting to protect young seedlings.",
+      "Use targeted foliar insecticides to manage whitefly populations, rotating chemical classes to prevent resistance.",
+      "Apply horticultural oils or insecticidal soaps to suppress whitefly nymphs and adults."
+    ],
+    "notes": "Management is entirely preventive and focuses on controlling the whitefly vector. Once a plant is infected, it cannot be cured."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/tomato/leaf_miner.json b/diseases_knowledge_base/tomato/leaf_miner.json
new file mode 100644
index 0000000000000000000000000000000000000000..d25db928af71114dc01d56ab3f7a9bfeb4ed4471
--- /dev/null
+++ b/diseases_knowledge_base/tomato/leaf_miner.json
@@ -0,0 +1,148 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "tomato.pest_insect.leaf_miner",
+  "aliases": [
+    "Serpentine leafminer",
+    "Vegetable leafminer"
+  ],
+  "crop": {
+    "common_name": "tomato",
+    "scientific_name": "Solanum lycopersicum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "Leaf Miner",
+    "scientific_name": "Liriomyza spp.",
+    "alt_names": [
+      "Serpentine leafminer",
+      "Liriomyza leafminer"
+    ],
+    "pathogen": {
+      "type": "insect",
+      "taxonomy": {
+        "kingdom": "Animalia",
+        "phylum": "Arthropoda",
+        "class": "Insecta",
+        "order": "Diptera",
+        "family": "Agromyzidae",
+        "genus": "Liriomyza",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "pest_insect",
+  "transmission": {
+    "vectors": [
+      "Adult female flies laying eggs in leaves"
+    ],
+    "dispersal": [
+      "Adult flies flying between plants",
+      "Wind dispersal of adult flies",
+      "Movement of infested seedlings or plant material"
+    ],
+    "overwintering": [
+      "Pupae in soil",
+      "Pupae in plant debris"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Warm, dry conditions",
+      "Greenhouse environments",
+      "Presence of alternative weed hosts (e.g., nightshades, composites)"
+    ],
+    "temp_c_day": [
+      24,
+      32
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      40,
+      70
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area affected with visible mines. Photosynthesis is minimally impacted.",
+    "moderate": "11-40% of leaf area affected. Multiple mines per leaf, some coalescing. Noticeable reduction in photosynthetic area.",
+    "severe": ">40% of leaf area affected. Extensive mining, leaves may appear whitish, become necrotic, and drop prematurely.",
+    "notes": "Severity is assessed by estimating the percentage of the total leaf surface covered by the whitish, meandering tunnels created by the larvae. For VQA, this can be a visual estimate of the symptomatic area on the most affected leaf in the region of interest."
+  },
+  "symptoms": {
+    "leaves": [
+      "Winding, serpentine, or blotchy white to tan trails (mines) are visible on the leaf surface.",
+      "Mines are located between the upper and lower leaf epidermis.",
+      "Mines widen as the larva grows, showing a progression from narrow to broad.",
+      "Small, dark specks or a thin black line of frass (larval excrement) is visible inside the mines.",
+      "Small, white dots (stippling) appear on the upper leaf surface from adult feeding and egg-laying punctures.",
+      "In heavy infestations, mines may merge, causing large white or necrotic blotches.",
+      "Severely affected leaves may turn yellow, dry out, and drop prematurely."
+    ],
+    "stems": [
+      "Stems are generally unaffected, though mines may occur on petioles in severe cases."
+    ],
+    "fruit": [
+      "Fruit is not directly damaged by mining, but sunscald can occur if defoliation is severe."
+    ],
+    "roots": [
+      "Not affected."
+    ],
+    "whole_plant": [
+      "Stunted growth and reduced yield in severe infestations due to loss of photosynthetic area."
+    ],
+    "signs_microscopic_or_visible": [
+      "Tiny, yellowish-white maggots (larvae) may be visible inside the mine if the leaf is held up to the light.",
+      "Small (approx. 2mm), black and yellow adult flies may be seen on or near leaves.",
+      "Small, oval, brownish pupae may be found on the leaf surface or in the soil below the plant."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Spider Mites",
+      "condition_id": "tomato.pest_insect.spider_mites",
+      "key_differences": [
+        "Leaf miner damage consists of distinct, wandering tunnels inside the leaf, whereas spider mite damage is fine, uniform stippling or bronzing on the leaf surface.",
+        "Spider mites produce fine webbing, especially on the underside of leaves, which is absent with leaf miners.",
+        "Leaf miner larvae are inside the leaf tissue; spider mites are tiny, mobile arachnids on the leaf surface."
+      ]
+    },
+    {
+      "condition_name": "Flea Beetle Injury",
+      "condition_id": "tomato.pest_insect.flea_beetle_injury",
+      "key_differences": [
+        "Flea beetles create small, round 'shot holes' that go completely through the leaf.",
+        "Leaf miner damage is a subcutaneous tunnel (mine) that does not typically break the upper or lower leaf surface.",
+        "Flea beetle adults are small, dark, jumping beetles, while leaf miner adults are small flies."
+      ]
+    },
+    {
+      "condition_name": "Yellowing Symptom",
+      "condition_id": "tomato.symptom.yellowing_symptom",
+      "key_differences": [
+        "Leaf miner damage is characterized by specific white or tan mines that precede or accompany any yellowing.",
+        "General yellowing from nutrient deficiency often follows a distinct pattern (e.g., interveinal, older vs. newer leaves) without the presence of tunnels.",
+        "Dark frass trails are present within leaf miner tunnels, which are absent in other causes of yellowing."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Remove and destroy infested leaves or entire plants early in the infestation.",
+      "Control broadleaf weed hosts in and around the growing area.",
+      "Use reflective mulches to deter adult flies from landing on plants.",
+      "In greenhouses, use insect screening on vents and doors."
+    ],
+    "biological": [
+      "Encourage natural predators and parasitoids (e.g., parasitic wasps like Diglyphus isaea).",
+      "Release commercially available beneficial insects in greenhouse settings.",
+      "Avoid broad-spectrum insecticides that kill natural enemies."
+    ],
+    "chemical": [
+      "Apply translaminar or systemic insecticides that target larvae inside the leaf (e.g., spinosad, abamectin, cyromazine).",
+      "Neem oil can act as a repellent and growth regulator.",
+      "Timing of applications is critical; target early larval stages for best results."
+    ],
+    "notes": "Monitor for adult flies using yellow sticky traps to time interventions."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/tomato/leaf_mold.json b/diseases_knowledge_base/tomato/leaf_mold.json
new file mode 100644
index 0000000000000000000000000000000000000000..3623b280210780108108d29dc3232cb7bf77e1e8
--- /dev/null
+++ b/diseases_knowledge_base/tomato/leaf_mold.json
@@ -0,0 +1,144 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "tomato.disease_fungal.leaf_mold",
+  "aliases": [
+    "Fulvia fulva",
+    "Cladosporium fulvum"
+  ],
+  "crop": {
+    "common_name": "tomato",
+    "scientific_name": "Solanum lycopersicum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "leaf mold",
+    "scientific_name": "Passalora fulva",
+    "alt_names": [
+      "Fulvia fulva",
+      "Cladosporium fulvum"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Capnodiales",
+        "family": "Mycosphaerellaceae",
+        "genus": "Passalora",
+        "species": "P. fulva"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "wind",
+      "rain splash",
+      "contaminated tools",
+      "clothing",
+      "infected seeds"
+    ],
+    "overwintering": [
+      "infected plant debris",
+      "soil",
+      "infected seeds",
+      "greenhouse structures"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high relative humidity",
+      "poor air circulation",
+      "greenhouse or high tunnel production",
+      "extended periods of leaf wetness",
+      "dense plant canopy"
+    ],
+    "temp_c_day": [
+      22,
+      24
+    ],
+    "temp_c_night": [
+      15,
+      21
+    ],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 10
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of total plant foliage affected. A few pale yellow spots on upper surfaces of lower leaves, with corresponding light, sparse mold growth on the undersides.",
+    "moderate": "11-40% of total plant foliage affected. Numerous spots, some coalescing. Obvious, dense olive-green mold on undersides. Some lower leaves are bright yellow and beginning to die back.",
+    "severe": ">40% of total plant foliage affected. Widespread leaf yellowing, browning, and necrosis. Significant defoliation progressing up the plant. Mold growth is extensive and may be visible on stems or petioles.",
+    "notes": "Severity is assessed on the whole plant, not a single leaf. The combination of upper-surface chlorosis and lower-surface sporulation is key. The upward progression from older to younger leaves is a typical indicator of increasing severity."
+  },
+  "symptoms": {
+    "leaves": [
+      "Initial symptoms are pale green or yellowish spots on the upper surface of older, lower leaves.",
+      "Spots have indefinite, diffuse borders, unlike the sharp borders of other leaf spots.",
+      "As spots enlarge, the upper surface becomes a brighter yellow, but typically does not become necrotic (brown) until late stages.",
+      "The lower leaf surface, directly beneath the yellow spots, develops patches of olive-green to grayish-purple, velvety mold.",
+      "This velvety growth consists of the fungal spores (conidia) and is the most definitive diagnostic sign.",
+      "Infected leaves eventually turn brown, shrivel, curl upwards, and drop prematurely.",
+      "The disease progresses from the bottom of the plant upwards."
+    ],
+    "stems": [
+      "Stem and petiole infections are uncommon but can occur under severe disease pressure, appearing as dark, moldy patches."
+    ],
+    "fruit": [
+      "Blossom infections can occur, leading to a dark, leathery rot at the stem end of the fruit.",
+      "Direct infection of mature green or ripe fruit is rare."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Stunted growth and reduced yield due to loss of photosynthetic area from defoliation.",
+      "In severe cases, significant defoliation occurs, starting from the base of the plant."
+    ],
+    "signs_microscopic_or_visible": [
+      "The key visible sign is the velvety, olive-green to grayish-purple mold (sporulation) on the abaxial (lower) leaf surface."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "late blight",
+      "condition_id": "tomato.disease_oomycete.late_blight",
+      "key_differences": [
+        "Leaf mold has olive-green/grayish, velvety mold on the leaf *underside*; late blight has white, fuzzy/downy mold, often at the lesion edge.",
+        "Leaf mold lesions are pale yellow on top; late blight lesions are large, water-soaked, dark-green to black, and greasy-looking.",
+        "Late blight aggressively attacks stems and fruit with large, dark, firm lesions; leaf mold rarely affects these parts as severely."
+      ]
+    },
+    {
+      "condition_name": "early blight",
+      "condition_id": "tomato.disease_fungal.early_blight",
+      "key_differences": [
+        "Leaf mold spots are pale yellow with diffuse borders; early blight lesions are dark brown and have a characteristic 'target-like' pattern of concentric rings.",
+        "Leaf mold has prominent, visible mold on the leaf underside; early blight lesions do not have visible mold.",
+        "Early blight lesions are often surrounded by a distinct yellow halo, which is less defined in leaf mold."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Plant resistant cultivars, as this is the most effective control method.",
+      "Increase plant spacing and prune lower leaves to improve air circulation and reduce humidity within the canopy.",
+      "Use drip irrigation instead of overhead watering to keep foliage dry.",
+      "In greenhouses, ensure adequate ventilation to lower relative humidity, especially in the morning.",
+      "Remove and destroy infected plant debris after harvest.",
+      "Practice crop rotation with non-solanaceous crops."
+    ],
+    "biological": [
+      "Bio-fungicides containing *Bacillus subtilis* or *Trichoderma harzianum* can be used preventatively to suppress fungal growth."
+    ],
+    "chemical": [
+      "Apply preventative fungicides, especially when environmental conditions are favorable.",
+      "Effective active ingredients include chlorothalonil, mancozeb, and copper-based compounds.",
+      "For established infections, fungicides with systemic or translaminar activity may be required. Always follow label instructions and rotate fungicide classes to prevent resistance."
+    ],
+    "notes": "Integrated management combining resistant varieties, cultural practices to reduce humidity, and timely fungicide applications is crucial for effective control, particularly in protected cultivation systems."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/tomato/mosaic_virus.json b/diseases_knowledge_base/tomato/mosaic_virus.json
new file mode 100644
index 0000000000000000000000000000000000000000..6936ffd5f160f2d2932e0821fa7e5ba2a70c56e2
--- /dev/null
+++ b/diseases_knowledge_base/tomato/mosaic_virus.json
@@ -0,0 +1,149 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "tomato.disease_viral.mosaic_virus",
+  "aliases": [
+    "Tomato Mosaic Virus",
+    "ToMV",
+    "Tobacco Mosaic Virus on tomato"
+  ],
+  "crop": {
+    "common_name": "tomato",
+    "scientific_name": "Solanum lycopersicum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "mosaic virus",
+    "scientific_name": "Tomato mosaic virus",
+    "alt_names": [
+      "ToMV",
+      "Tobacco mosaic virus (TMV)"
+    ],
+    "pathogen": {
+      "type": "virus",
+      "taxonomy": {
+        "kingdom": "Orthornavirae",
+        "phylum": "Kitrinoviricota",
+        "class": "Alsuviricetes",
+        "order": "Martellivirales",
+        "family": "Virgaviridae",
+        "genus": "Tobamovirus",
+        "species": "Tomato mosaic virus"
+      }
+    }
+  },
+  "issue_type": "disease_viral",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "mechanical transmission (hands, tools, clothing)",
+      "infected seed",
+      "infected plant debris in soil",
+      "root-to-root contact"
+    ],
+    "overwintering": [
+      "infected plant debris in soil",
+      "perennial host weeds",
+      "infected seeds",
+      "contaminated tools and greenhouse structures"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "high plant density",
+      "frequent plant handling and pruning",
+      "use of non-certified seed",
+      "presence of susceptible weed hosts (e.g., nightshade)"
+    ],
+    "temp_c_day": [
+      24,
+      28
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "Light mottling or mosaic pattern on <15% of leaf area on affected leaves. No significant stunting.",
+    "moderate": "Distinct mosaic, yellowing, and some leaf distortion on 15-40% of leaf area. Minor plant stunting may be visible.",
+    "severe": "Severe mosaic, leaf curling, blistering, and significant stunting of the entire plant (>40% leaf area affected). Reduced fruit set or malformed fruit.",
+    "notes": "Severity is assessed based on the percentage of leaf surface showing mosaic, mottling, or distortion, combined with overall plant stunting. Value of 0 for leaf_wetness_hours_threshold indicates it is not a primary factor for this mechanically-transmitted virus."
+  },
+  "symptoms": {
+    "leaves": [
+      "light and dark green mottling or mosaic pattern",
+      "yellow mosaic or mottling",
+      "leaf blistering, puckering, or bubbling",
+      "fernleaf symptom (narrowed, shoestring-like leaves)",
+      "leaf curling or malformation",
+      "vein clearing on young leaves"
+    ],
+    "stems": [
+      "stunting between nodes",
+      "necrotic streaks in severe cases"
+    ],
+    "fruit": [
+      "blotchy, uneven ripening with yellow or orange patches",
+      "internal browning or necrosis ('internal blotching' or 'blotchy ripening')",
+      "reduced fruit size and number",
+      "occasional ring spots or bronzing"
+    ],
+    "roots": [
+      "stunted root system (secondary effect of poor plant growth)"
+    ],
+    "whole_plant": [
+      "general stunting or reduced vigor",
+      "bushy appearance due to shortened internodes"
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "yellow leaf curl virus",
+      "condition_id": "tomato.disease_viral.yellow_leaf_curl_virus",
+      "key_differences": [
+        "Yellow Leaf Curl Virus causes distinct upward curling of leaf margins, forming a cup shape; mosaic virus causes more mottling and blistering.",
+        "TYLCV-infected leaves are often smaller, thicker, and leathery; mosaic virus leaves are more likely to show 'fernleaf' distortion.",
+        "TYLCV infection is associated with the presence of whiteflies, its vector; mosaic virus is primarily mechanically transmitted."
+      ]
+    },
+    {
+      "condition_name": "spider mites",
+      "condition_id": "tomato.pest_damage.spider_mites",
+      "key_differences": [
+        "Spider mite damage appears as fine, yellow stippling, not a large-scale mottled or mosaic pattern.",
+        "Fine webbing is often visible on the undersides of leaves and stems with spider mites, which is absent in viral infections.",
+        "Mites or their eggs may be visible with a hand lens on the leaf underside; viruses are microscopic.",
+        "Spider mite damage often starts on lower leaves and moves up, while mosaic symptoms can appear on new growth."
+      ]
+    },
+    {
+      "condition_name": "fusarium wilt",
+      "condition_id": "tomato.disease_fungal.fusarium_wilt",
+      "key_differences": [
+        "Fusarium wilt typically causes yellowing and wilting on only one side of the plant or a single branch initially; mosaic symptoms are more generally distributed.",
+        "Slicing the lower stem of a Fusarium-infected plant reveals brown vascular discoloration; this is absent in mosaic virus.",
+        "Fusarium causes pronounced wilting, especially during the heat of the day, which is less characteristic of mosaic virus until late stages."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "use certified virus-free seed and transplants",
+      "practice strict sanitation (wash hands with soap, disinfect tools with 10% bleach solution)",
+      "remove and destroy infected plants immediately",
+      "control perennial weeds in and around the growing area",
+      "avoid handling wet plants to reduce mechanical spread",
+      "plant resistant or tolerant tomato varieties"
+    ],
+    "biological": [
+      "use of cross-protection with a mild strain of the virus (commercial applications)",
+      "application of milk-based solutions to inactivate the virus on tools and hands"
+    ],
+    "chemical": [
+      "no chemical treatments can cure a virus-infected plant",
+      "insecticides can be used to control potential vectors like aphids, but are ineffective against mechanical transmission"
+    ],
+    "notes": "Prevention is the only effective management strategy. Once a plant is infected, it cannot be cured and should be removed to prevent spread."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/tomato/pest_damage.json b/diseases_knowledge_base/tomato/pest_damage.json
new file mode 100644
index 0000000000000000000000000000000000000000..aca23c189bd93e18c4c73b10ab6e60d8c49051d8
--- /dev/null
+++ b/diseases_knowledge_base/tomato/pest_damage.json
@@ -0,0 +1,151 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "tomato.unknown.pest_damage",
+  "aliases": [
+    "insect damage",
+    "arthropod injury",
+    "bug damage"
+  ],
+  "crop": {
+    "common_name": "tomato",
+    "scientific_name": "Solanum lycopersicum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "Pest Damage",
+    "scientific_name": null,
+    "alt_names": [
+      "Insect Injury",
+      "Mite Damage"
+    ],
+    "pathogen": {
+      "type": "arthropod",
+      "taxonomy": {
+        "kingdom": "Animalia",
+        "phylum": "Arthropoda",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "unknown",
+  "transmission": {
+    "vectors": [
+      "Direct feeding by adult or larval stages",
+      "Wind dispersal (for small pests like mites)",
+      "Movement on contaminated equipment or clothing"
+    ],
+    "dispersal": [
+      "Flight (for winged insects)",
+      "Crawling",
+      "Wind currents"
+    ],
+    "overwintering": [
+      "In crop debris",
+      "In soil as eggs, larvae, pupae, or adults",
+      "On nearby weeds or alternative host plants"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Presence of alternative weed hosts",
+      "Monoculture planting",
+      "Warm, dry conditions (favors mites)",
+      "High humidity (can favor some chewing pests)",
+      "Lack of natural predators"
+    ],
+    "temp_c_day": [],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area affected by chewing, stippling, or mining.",
+    "moderate": "11-40% of leaf area affected; some leaf curling or distortion may be present.",
+    "severe": ">40% of leaf area affected; significant defoliation, stunted growth, or direct damage to a majority of fruit.",
+    "notes": "Severity is measured by the total percentage of photosynthetic area lost or damaged across the plant. For fruit damage, it can be qualitative based on marketability."
+  },
+  "symptoms": {
+    "leaves": [
+      "Irregularly shaped holes chewed in leaves, or skeletonization leaving only veins.",
+      "Fine, pale yellow or white speckles (stippling) on the upper leaf surface.",
+      "Winding, discolored trails or 'mines' within the leaf tissue.",
+      "Leaves are distorted, curled, or puckered.",
+      "Presence of sticky 'honeydew' which may be colonized by sooty mold.",
+      "Fine, silk-like webbing, especially on the underside of leaves and between stems."
+    ],
+    "stems": [
+      "Boring holes or tunnels visible in stems.",
+      "Girdling or chewing marks on the stem surface."
+    ],
+    "fruit": [
+      "Superficial scars, blemishes, or 'stings' on the fruit surface.",
+      "Deep holes or tunnels bored into the fruit, often with frass (excrement) present.",
+      "Deformed or cat-faced fruit development due to early feeding damage."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Wilting of the entire plant despite adequate water, if stem borers or root feeders are present.",
+      "Stunted or poor overall growth."
+    ],
+    "signs_microscopic_or_visible": [
+      "Visible insects, larvae (caterpillars), or mites on leaves, stems, or fruit.",
+      "Presence of eggs, often in clusters, on the underside of leaves.",
+      "Dark specks of frass (insect excrement) on leaves or near feeding sites."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "flea_beetle_injury",
+      "condition_id": "tomato.pest.flea_beetle_injury",
+      "key_differences": [
+        "Damage consists of numerous small, round 'shot-holes', rather than large irregular holes or stippling.",
+        "The pest responsible is a small, dark, jumping beetle, which may be visible.",
+        "Damage is most severe on young seedlings and lower leaves."
+      ]
+    },
+    {
+      "condition_name": "spider_mites",
+      "condition_id": "tomato.pest.spider_mites",
+      "key_differences": [
+        "Damage is primarily fine stippling (tiny yellow dots), not holes or mines.",
+        "Fine webbing is a key diagnostic sign, especially on leaf undersides.",
+        "The pests are tiny, mite-like arachnids, not insects.",
+        "Symptoms often start on lower leaves and progress upwards."
+      ]
+    },
+    {
+      "condition_name": "bacterial_spot",
+      "condition_id": "tomato.disease.bacterial_spot",
+      "key_differences": [
+        "Lesions are water-soaked initially, becoming dark, angular, and sometimes greasy in appearance.",
+        "Lesions may have a faint yellow halo, which is absent in pest damage.",
+        "No signs of chewing, mining, or insects/frass are present.",
+        "Symptoms are favored by high humidity and rain, unlike many mite pests."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use of floating row covers on young plants to create a physical barrier.",
+      "Regular scouting to detect pest presence early.",
+      "Removal of infested plant parts or entire plants.",
+      "Weed management in and around the garden to reduce alternative hosts.",
+      "Crop rotation to break pest life cycles."
+    ],
+    "biological": [
+      "Encourage natural predators like ladybugs, lacewings, and parasitic wasps by planting diverse flowers.",
+      "Release of commercially available predatory insects or mites."
+    ],
+    "chemical": [
+      "Application of insecticidal soaps or horticultural oils for soft-bodied insects and mites.",
+      "Use of Bacillus thuringiensis (Bt) for caterpillar control.",
+      "Application of broad-spectrum or systemic insecticides as a last resort, following label instructions."
+    ],
+    "notes": "The specific management strategy depends heavily on identifying the pest. Integrated Pest Management (IPM) is the recommended approach."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/tomato/septoria_leaf_spot.json b/diseases_knowledge_base/tomato/septoria_leaf_spot.json
new file mode 100644
index 0000000000000000000000000000000000000000..e47868d84b434b54fe53ff92c7c4d5b708e3bbdb
--- /dev/null
+++ b/diseases_knowledge_base/tomato/septoria_leaf_spot.json
@@ -0,0 +1,144 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "tomato.disease_fungal.septoria_leaf_spot",
+  "aliases": [
+    "Septoria blight"
+  ],
+  "crop": {
+    "common_name": "tomato",
+    "scientific_name": "Solanum lycopersicum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "septoria leaf spot",
+    "scientific_name": "Septoria lycopersici",
+    "alt_names": [],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Capnodiales",
+        "family": "Mycosphaerellaceae",
+        "genus": "Septoria",
+        "species": "lycopersici"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [
+      "human activity (tools, hands)",
+      "insects (e.g., beetles)"
+    ],
+    "dispersal": [
+      "rain splash",
+      "wind-driven rain",
+      "overhead irrigation"
+    ],
+    "overwintering": [
+      "infected plant debris",
+      "on solanaceous weeds (e.g., nightshade)",
+      "on stakes and equipment"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "prolonged leaf wetness",
+      "high humidity",
+      "dense plant canopy",
+      "poor air circulation",
+      "overhead irrigation"
+    ],
+    "temp_c_day": [
+      20,
+      25
+    ],
+    "temp_c_night": [
+      15,
+      20
+    ],
+    "relative_humidity_pct": [
+      85,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 48
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Few, scattered lesions (1-10 per leaf), primarily on the lowest leaves. No significant yellowing or defoliation.",
+    "moderate": "Numerous lesions on lower and middle leaves. Affected leaves show significant chlorosis (yellowing) around spots. Minor defoliation of the lowest leaves begins.",
+    "severe": "Lesions are widespread, coalescing on lower and middle leaves, and appearing on upper leaves. Significant defoliation is occurring from the bottom of the plant upwards. Stems may have lesions.",
+    "notes": "Severity is assessed by the vertical progression of the disease up the plant and the degree of associated yellowing and leaf drop."
+  },
+  "symptoms": {
+    "leaves": [
+      "Starts on lower, older leaves and progresses upwards.",
+      "Initial symptoms are small, water-soaked spots (1-2 mm).",
+      "Lesions develop into circular spots (3-6 mm) with dark brown or purplish-brown borders.",
+      "Mature lesion centers are typically tan, gray, or white.",
+      "Numerous spots may appear on a single leaf, giving it a blighted appearance.",
+      "Heavily infected leaves turn yellow (chlorotic), wither, and drop off.",
+      "Lesions do not typically have a 'target' or concentric ring pattern."
+    ],
+    "stems": [
+      "Lesions on stems are less common but can occur.",
+      "Stem spots are similar to leaf spots: small, circular, with gray centers."
+    ],
+    "fruit": [
+      "Fruit infection is rare but possible.",
+      "Spots on fruit are typically small and do not cause significant rot."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Progressive defoliation from the bottom up is a key characteristic.",
+      "Severe defoliation can expose fruit to sunscald."
+    ],
+    "signs_microscopic_or_visible": [
+      "Tiny, black specks (pycnidia) are visible in the center of mature lesions, often requiring a hand lens.",
+      "Pycnidia are the fruiting bodies of the fungus."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "early blight",
+      "condition_id": "tomato.disease_fungal.early_blight",
+      "key_differences": [
+        "Lesions are larger (>6 mm) and often have a distinct 'target-like' appearance with concentric rings.",
+        "A yellow halo is often prominent around early blight lesions.",
+        "Early blight lesions are fewer in number per leaf compared to the numerous spots of Septoria.",
+        "Early blight also causes distinct 'collar rot' at the soil line on seedlings."
+      ]
+    },
+    {
+      "condition_name": "bacterial spot",
+      "condition_id": "tomato.disease_bacterial.bacterial_spot",
+      "key_differences": [
+        "Lesions are often angular, limited by small leaf veins, rather than circular.",
+        "Bacterial spots may appear greasy or water-soaked, especially when young.",
+        "Lesion centers may fall out, creating a 'shot-hole' effect.",
+        "Bacterial spot lacks the characteristic tiny black pycnidia found in Septoria lesions."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified disease-free seed and transplants.",
+      "Practice crop rotation, avoiding solanaceous crops for 2-3 years.",
+      "Remove and destroy infected plant debris after harvest.",
+      "Improve air circulation by staking, pruning, and proper plant spacing.",
+      "Use drip irrigation or soaker hoses to avoid wetting foliage.",
+      "Mulch around base of plants to reduce soil splash."
+    ],
+    "biological": [
+      "Application of biofungicides containing *Bacillus subtilis* or other beneficial microbes can suppress the disease."
+    ],
+    "chemical": [
+      "Apply fungicides containing chlorothalonil, mancozeb, or copper compounds preventatively.",
+      "Begin applications when conditions are favorable for disease, before symptoms are severe.",
+      "Rotate fungicide classes to prevent resistance."
+    ],
+    "notes": "An integrated pest management (IPM) approach combining cultural, biological, and chemical strategies is most effective."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/tomato/spider_mites.json b/diseases_knowledge_base/tomato/spider_mites.json
new file mode 100644
index 0000000000000000000000000000000000000000..964210240217177c2deb468d28e0cc5da1312e12
--- /dev/null
+++ b/diseases_knowledge_base/tomato/spider_mites.json
@@ -0,0 +1,137 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "tomato.pest_mite.spider_mites",
+  "aliases": [
+    "Two-spotted spider mite",
+    "TSSM",
+    "Red spider mite"
+  ],
+  "crop": {
+    "common_name": "tomato",
+    "scientific_name": "Solanum lycopersicum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "Spider Mites",
+    "scientific_name": "Tetranychus urticae",
+    "alt_names": [],
+    "pathogen": {
+      "type": "pest_mite",
+      "taxonomy": {
+        "kingdom": "Animalia",
+        "phylum": "Arthropoda",
+        "class": "Arachnida",
+        "order": "Trombidiformes",
+        "family": "Tetranychidae",
+        "genus": "Tetranychus",
+        "species": "urticae"
+      }
+    }
+  },
+  "issue_type": "pest_mite",
+  "transmission": {
+    "vectors": [
+      "Wind",
+      "Humans (on clothing/tools)",
+      "Infected transplants"
+    ],
+    "dispersal": [
+      "Mites walk between plants with touching foliage",
+      "Carried on wind currents",
+      "Mechanical transfer via equipment and workers"
+    ],
+    "overwintering": [
+      "Adult females overwinter in plant debris, soil, weeds, or greenhouse structures"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Hot, dry, and dusty conditions",
+      "Low relative humidity",
+      "Water-stressed plants",
+      "Over-application of broad-spectrum insecticides that kill natural predators"
+    ],
+    "temp_c_day": [
+      27,
+      35
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [
+      0,
+      50
+    ],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area shows stippling. Webbing is minimal or absent. Mites are difficult to see without a hand lens.",
+    "moderate": "11-40% of leaf area shows stippling and some yellowing (chlorosis). Fine webbing is visible on leaf undersides and between petioles.",
+    "severe": ">40% of leaf area is yellow, bronze, or necrotic. Extensive, dense webbing covers leaves, stems, and growing points. Mites are clearly visible as moving specks.",
+    "notes": "Severity is based on the visual leaf damage (stippling, chlorosis) and the extent of webbing, which are proxies for mite population density."
+  },
+  "symptoms": {
+    "leaves": [
+      "Fine, pale yellow or white stippling (tiny dots) on the upper leaf surface.",
+      "Leaves may appear dusty or dirty, particularly on the underside.",
+      "With increasing damage, stippled areas coalesce, causing leaves to turn yellow, then bronze.",
+      "Affected leaves become dry, brittle, and may fall off prematurely.",
+      "Fine, silk-like webbing is visible on the underside of leaves and along petioles.",
+      "In severe cases, leaf margins may curl downwards."
+    ],
+    "stems": [
+      "Webbing can cover stems and growing points in heavy infestations."
+    ],
+    "fruit": [
+      "Direct feeding on fruit is uncommon but can cause small, whitish or yellowish surface spots (stippling).",
+      "Fruit may be covered in webbing and dust in severe cases."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Reduced plant vigor and stunted growth.",
+      "Severe infestations can lead to significant defoliation and plant death."
+    ],
+    "signs_microscopic_or_visible": [
+      "Tiny, moving specks (mites) are visible on the underside of leaves, often requiring a hand lens.",
+      "Small, spherical eggs are present on the underside of leaves, often entangled in webbing.",
+      "Cast skins of mites may be visible within the webbing."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Flea Beetle Injury",
+      "condition_id": "tomato.pest_damage.flea_beetle_injury",
+      "key_differences": [
+        "Flea beetle damage consists of small, round 'shot holes' that penetrate the leaf, not surface stippling.",
+        "No webbing is ever present with flea beetle injury.",
+        "The pest is a small, black, jumping beetle, not a tiny mite.",
+        "Damage is often concentrated on younger leaves of new transplants."
+      ]
+    },
+    {
+      "condition_name": "Leaf Miner",
+      "condition_id": "tomato.pest_damage.leaf_miner",
+      "key_differences": [
+        "Leaf miner damage appears as winding, white or pale trails (tunnels or 'mines') within the leaf tissue.",
+        "Spider mite damage is a collection of tiny dots (stippling) on the leaf surface, not internal tunnels.",
+        "No webbing is associated with leaf miners."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Maintain adequate plant irrigation to avoid water stress, which makes plants more susceptible.",
+      "Use overhead watering or misting to periodically raise humidity and wash off mites.",
+      "Remove and destroy heavily infested plants or leaves to reduce population.",
+      "Control host weeds (e.g., nightshades, pigweed) in and around the growing area."
+    ],
+    "biological": [
+      "Introduce or encourage predatory mites (e.g., Phytoseiulus persimilis, Neoseiulus californicus).",
+      "Conserve generalist predators like minute pirate bugs, lacewings, and lady beetles by avoiding broad-spectrum insecticides."
+    ],
+    "chemical": [
+      "Apply horticultural oils or insecticidal soaps, ensuring thorough coverage of leaf undersides where mites reside.",
+      "Use selective miticides (acaricides) for heavy infestations, rotating chemical classes to prevent resistance."
+    ],
+    "notes": "Early detection is critical. Scout for stippling on lower leaves first. Chemical controls can harm natural enemies, so use them as a last resort."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/tomato/target_spot.json b/diseases_knowledge_base/tomato/target_spot.json
new file mode 100644
index 0000000000000000000000000000000000000000..ea59ef1b26366a08229648668dc7162849f8128d
--- /dev/null
+++ b/diseases_knowledge_base/tomato/target_spot.json
@@ -0,0 +1,149 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "tomato.disease_fungal.target_spot",
+  "aliases": [
+    "Corynespora leaf spot"
+  ],
+  "crop": {
+    "common_name": "Tomato",
+    "scientific_name": "Solanum lycopersicum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "Target Spot",
+    "scientific_name": "Corynespora cassiicola",
+    "alt_names": [
+      "Corynespora leaf spot"
+    ],
+    "pathogen": {
+      "type": "disease_fungal",
+      "taxonomy": {
+        "kingdom": "Fungi",
+        "phylum": "Ascomycota",
+        "class": "Dothideomycetes",
+        "order": "Pleosporales",
+        "family": "Corynesporascaceae",
+        "genus": "Corynespora",
+        "species": "cassiicola"
+      }
+    }
+  },
+  "issue_type": "disease_fungal",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [
+      "Wind",
+      "Water splash (rain, irrigation)",
+      "Contaminated tools",
+      "Infected seed"
+    ],
+    "overwintering": [
+      "Infected plant debris",
+      "On alternative weed hosts",
+      "In soil"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High humidity",
+      "Poor air circulation",
+      "Overhead irrigation",
+      "Warm temperatures",
+      "Extended periods of leaf wetness"
+    ],
+    "temp_c_day": [
+      24,
+      32
+    ],
+    "temp_c_night": [
+      20,
+      26
+    ],
+    "relative_humidity_pct": [
+      80,
+      100
+    ],
+    "leaf_wetness_hours_threshold": 8
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of leaf area affected. Few, scattered lesions, primarily on lower leaves.",
+    "moderate": "11-40% of leaf area affected. Numerous lesions on lower and mid-canopy leaves. Some yellowing and minor defoliation may be present.",
+    "severe": ">40% of leaf area affected. Widespread lesions on leaves, stems, and fruit. Significant defoliation and yellowing.",
+    "notes": "Severity is estimated as the percentage of total foliage showing symptoms. Assess multiple leaves from different parts of the plant (lower, middle, upper canopy) for an average rating."
+  },
+  "symptoms": {
+    "leaves": [
+      "Starts as small, water-soaked spots on older, lower leaves.",
+      "Lesions expand into circular spots, 1-10 mm in diameter, with a 'target' or 'bulls-eye' appearance.",
+      "Mature lesions exhibit distinct concentric rings.",
+      "Lesion centers are typically tan or light gray with a dark brown to black border.",
+      "A yellow halo often surrounds the lesions.",
+      "Spots can merge, creating large, irregular blighted areas.",
+      "Infected leaves turn yellow, wither, and drop prematurely, starting from the bottom of the plant."
+    ],
+    "stems": [
+      "Elongated, dark, and slightly sunken lesions can form on stems and petioles."
+    ],
+    "fruit": [
+      "On green fruit, symptoms are small, dark, slightly sunken pits.",
+      "On ripe fruit, lesions become larger, more sunken, and may show concentric rings.",
+      "A velvety, dark fungal growth may appear on fruit lesions under high humidity."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Defoliation progresses from the lower canopy upwards, potentially leading to sunscald on fruit."
+    ],
+    "signs_microscopic_or_visible": [
+      "Under magnification or high humidity, a dark, fuzzy mold (conidia and conidiophores) may be visible in the center of lesions."
+    ]
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Early Blight",
+      "condition_id": "tomato.disease_fungal.early_blight",
+      "key_differences": [
+        "Early blight lesions are typically larger (>10 mm), more leathery, and more angular than the finer, more circular target spot lesions.",
+        "The concentric rings in early blight are often fewer, coarser, and more pronounced.",
+        "Early blight frequently causes a distinct 'collar rot' lesion at the soil line on stems, which is not characteristic of target spot."
+      ]
+    },
+    {
+      "condition_name": "Septoria Leaf Spot",
+      "condition_id": "tomato.disease_fungal.septoria_leaf_spot",
+      "key_differences": [
+        "Septoria lesions are much smaller (2-5 mm) and more numerous than target spot lesions.",
+        "Septoria lesions lack the distinct concentric 'target' rings.",
+        "The centers of Septoria lesions contain tiny, visible black specks (pycnidia), which are absent in target spot."
+      ]
+    },
+    {
+      "condition_name": "Bacterial Spot",
+      "condition_id": "tomato.disease_bacterial.bacterial_spot",
+      "key_differences": [
+        "Bacterial spot lesions are often angular (vein-limited) and initially appear dark and water-soaked.",
+        "Bacterial spot lesions do not have the concentric ring pattern of target spot.",
+        "The centers of bacterial spots may fall out, creating a 'shot-hole' appearance, which is uncommon for target spot."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified disease-free seed and transplants.",
+      "Rotate crops with non-solanaceous plants for at least two years.",
+      "Improve air circulation via staking, pruning, and adequate plant spacing.",
+      "Avoid overhead watering to minimize leaf wetness; use drip irrigation.",
+      "Remove and destroy infected plant debris after harvest.",
+      "Control solanaceous weeds which may act as alternative hosts."
+    ],
+    "biological": [
+      "Application of bio-fungicides containing strains of *Bacillus subtilis* or *Trichoderma* spp. may provide some suppression if applied preventatively."
+    ],
+    "chemical": [
+      "Apply preventative fungicides, especially during warm, humid weather.",
+      "Effective contact fungicides include those with active ingredients like chlorothalonil, mancozeb, or copper.",
+      "Rotate systemic fungicides from different FRAC groups (e.g., strobilurins, SDHIs) to prevent resistance."
+    ],
+    "notes": "Chemical control is most effective when used preventatively. Always follow pesticide label instructions for application rates and timing."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/tomato/yellow_leaf_curl_virus.json b/diseases_knowledge_base/tomato/yellow_leaf_curl_virus.json
new file mode 100644
index 0000000000000000000000000000000000000000..16861f4728e8509dce8c15e1782456b533b5fb5f
--- /dev/null
+++ b/diseases_knowledge_base/tomato/yellow_leaf_curl_virus.json
@@ -0,0 +1,130 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "tomato.disease_viral.yellow_leaf_curl_virus",
+  "aliases": [
+    "TYLCV",
+    "Tomato yellow leaf curl"
+  ],
+  "crop": {
+    "common_name": "tomato",
+    "scientific_name": "Solanum lycopersicum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "yellow leaf curl virus",
+    "scientific_name": "Tomato yellow leaf curl virus",
+    "alt_names": [
+      "TYLCV"
+    ],
+    "pathogen": {
+      "type": "virus",
+      "taxonomy": {
+        "kingdom": "Orthornavirae",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "Geminiviridae",
+        "genus": "Begomovirus",
+        "species": "Tomato yellow leaf curl virus"
+      }
+    }
+  },
+  "issue_type": "disease_viral",
+  "transmission": {
+    "vectors": [
+      "Whiteflies (specifically Bemisia tabaci)"
+    ],
+    "dispersal": [
+      "Infected transplants",
+      "Movement of vector insects"
+    ],
+    "overwintering": [
+      "Infected perennial weed hosts",
+      "Infected volunteer tomato plants",
+      "Persistently on adult whiteflies"
+    ]
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "High whitefly populations",
+      "Warm, dry conditions favoring whitefly development",
+      "Proximity to infected fields or greenhouses"
+    ],
+    "temp_c_day": [
+      25,
+      35
+    ],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "qualitative",
+    "mild": "Slight upward curling and yellowing on a few young, terminal leaves; minimal or no stunting.",
+    "moderate": "Pronounced upward leaf curling, yellowing of leaf margins on multiple leaves, and noticeable stunting of the plant; some flower drop observed.",
+    "severe": "Severe stunting, small, thick, leathery leaves that are strongly cupped upward and bright yellow; significant flower drop and poor or no fruit set.",
+    "notes": "Severity is based on the degree of stunting and leaf deformation. Infections at an early plant age result in the most severe symptoms. Leaf wetness is not a factor for this vector-borne viral disease, hence threshold is 0."
+  },
+  "symptoms": {
+    "leaves": [
+      "Upward cupping or curling of leaf margins, resembling a cup shape.",
+      "Interveinal yellowing (chlorosis), starting on younger leaves.",
+      "Leaf margins turn a distinct bright yellow while the rest of the leaf may remain green.",
+      "Affected leaves become smaller, thicker, and feel leathery or brittle.",
+      "Leaflets appear crinkled, distorted, and reduced in size."
+    ],
+    "stems": [
+      "Internodes are shortened, leading to a compact, bushy appearance."
+    ],
+    "fruit": [
+      "Significant reduction in fruit set due to flower abortion.",
+      "Fruits that develop are often smaller than normal and may be unmarketable."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Severe stunting is a primary symptom, especially if infected when young.",
+      "Plant exhibits a generally pale or yellowish appearance.",
+      "A bushy, compact growth habit due to shortened internodes."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "mosaic virus",
+      "condition_id": "tomato.disease_viral.mosaic_virus",
+      "key_differences": [
+        "Mosaic virus causes mottled light green and yellow patterns (a mosaic), not the distinct, uniform marginal yellowing of TYLCV.",
+        "Leaf distortion in mosaic is often fern-like or stringy, rather than the thick, leathery, upward cupping of TYLCV.",
+        "While both are viruses, the severe upward leaf curl is the hallmark of TYLCV and is less pronounced in mosaic infections."
+      ]
+    },
+    {
+      "condition_name": "spider mites",
+      "condition_id": "tomato.pest_damage.spider_mites",
+      "key_differences": [
+        "Spider mite damage appears as fine, pale yellow stippling on the leaf surface, not broad chlorosis or yellow margins.",
+        "The underside of mite-infested leaves will have fine webbing and tiny moving mites, which are absent in a viral infection.",
+        "Mite damage does not cause the characteristic severe upward leaf cupping or leathery texture seen in TYLCV.",
+        "Yellowing from mites often progresses to a bronze color and leaf death, while TYLCV leaves typically remain yellow and curled."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Use certified virus-free transplants.",
+      "Control whitefly populations using reflective (e.g., silver) plastic mulches.",
+      "Promptly remove and destroy infected plants to reduce the source of inoculum.",
+      "Implement a host-free period by removing all tomato and weed hosts between cropping seasons.",
+      "Use physical barriers like insect-proof nets in greenhouses."
+    ],
+    "biological": [
+      "Introduce or conserve natural enemies of whiteflies, such as predatory mites, lacewings, and parasitic wasps."
+    ],
+    "chemical": [
+      "Apply systemic insecticides at planting to protect young plants.",
+      "Use targeted foliar insecticides to manage whitefly populations, rotating chemical classes to prevent resistance.",
+      "Horticultural oils and insecticidal soaps can be effective in suppressing whitefly numbers with regular application."
+    ],
+    "notes": "The primary management strategy is controlling the whitefly vector, as there is no cure for an infected plant. Integrated pest management (IPM) is crucial."
+  }
+}
\ No newline at end of file
diff --git a/diseases_knowledge_base/tomato/yellowing_symptom.json b/diseases_knowledge_base/tomato/yellowing_symptom.json
new file mode 100644
index 0000000000000000000000000000000000000000..e89293e361876aaa4418f401e9bb9107325db8f1
--- /dev/null
+++ b/diseases_knowledge_base/tomato/yellowing_symptom.json
@@ -0,0 +1,129 @@
+{
+  "schema_version": "1.0.0",
+  "disease_id": "tomato.physiological_symptom.yellowing_symptom",
+  "aliases": [
+    "chlorosis",
+    "tomato chlorosis",
+    "nutrient deficiency yellowing"
+  ],
+  "crop": {
+    "common_name": "tomato",
+    "scientific_name": "Solanum lycopersicum",
+    "family": "Solanaceae"
+  },
+  "condition": {
+    "common_name": "Yellowing Symptom",
+    "scientific_name": "",
+    "alt_names": [
+      "Chlorosis",
+      "Nutrient Deficiency"
+    ],
+    "pathogen": {
+      "type": "physiological_disorder",
+      "taxonomy": {
+        "kingdom": "",
+        "phylum": "",
+        "class": "",
+        "order": "",
+        "family": "",
+        "genus": "",
+        "species": ""
+      }
+    }
+  },
+  "issue_type": "physiological_symptom",
+  "transmission": {
+    "vectors": [],
+    "dispersal": [],
+    "overwintering": []
+  },
+  "environmental_risk": {
+    "risk_factors": [
+      "Low soil nitrogen",
+      "Low soil magnesium",
+      "Low soil iron",
+      "High soil pH (alkaline)",
+      "Waterlogged soil (poor drainage)",
+      "Drought stress",
+      "Compacted soil"
+    ],
+    "temp_c_day": [],
+    "temp_c_night": [],
+    "relative_humidity_pct": [],
+    "leaf_wetness_hours_threshold": 0
+  },
+  "severity_rubric": {
+    "unit": "percent_leaf_area",
+    "mild": "1-10% of the total leaf area on the plant is yellow.",
+    "moderate": "11-40% of the total leaf area on the plant is yellow.",
+    "severe": ">40% of the total leaf area on the plant is yellow, often with some browning or necrosis.",
+    "notes": "Severity is measured as the percentage of total plant foliage showing yellowing (chlorosis). Assess the whole plant, not just a single leaf."
+  },
+  "symptoms": {
+    "leaves": [
+      "Uniform yellowing of older, lower leaves, while new growth remains green (classic nitrogen deficiency).",
+      "Yellowing between the veins (interveinal chlorosis) on older, lower leaves, sometimes with a 'Christmas tree' pattern (magnesium deficiency).",
+      "Interveinal chlorosis primarily on new, upper leaves (iron deficiency).",
+      "General, pale green to yellow discoloration across the entire plant.",
+      "Leaf margins turn yellow and may become necrotic.",
+      "In severe cases, yellowed leaves may wilt, dry up, and drop from the plant."
+    ],
+    "stems": [
+      "Stems may appear thin, spindly, or stunted."
+    ],
+    "fruit": [
+      "Fruit may be smaller than expected or fail to develop properly.",
+      "Poor or uneven ripening, such as 'blotchy ripening' or 'green shoulders'."
+    ],
+    "roots": [],
+    "whole_plant": [
+      "Overall stunted growth.",
+      "Reduced plant vigor and productivity."
+    ],
+    "signs_microscopic_or_visible": []
+  },
+  "lookalikes": [
+    {
+      "condition_name": "Fusarium Wilt",
+      "condition_id": "tomato.fungal_disease.fusarium_wilt",
+      "key_differences": [
+        "Fusarium often causes yellowing and wilting on only one side of the plant or even one side of a leaf.",
+        "A key diagnostic is the brown vascular discoloration visible when the lower stem is cut open.",
+        "Wilting is a primary symptom, often severe and preceding widespread yellowing."
+      ]
+    },
+    {
+      "condition_name": "Spider Mites",
+      "condition_id": "tomato.pest_damage.spider_mites",
+      "key_differences": [
+        "Yellowing is composed of tiny, fine yellow or white dots (stippling) on the leaf surface.",
+        "Fine webbing is often visible on the undersides of leaves or between stems and petioles.",
+        "Close inspection of the leaf underside may reveal tiny, moving mites."
+      ]
+    },
+    {
+      "condition_name": "Mosaic Virus",
+      "condition_id": "tomato.viral_disease.mosaic_virus",
+      "key_differences": [
+        "Yellowing appears as a mottled or mosaic pattern of light green and yellow patches, not uniform or interveinal.",
+        "Leaves are often distorted, puckered, or have a fern-like shape.",
+        "Overall plant growth is typically severely stunted in a way not typical for early-stage nutrient issues."
+      ]
+    }
+  ],
+  "management": {
+    "cultural": [
+      "Conduct a soil test to determine pH and nutrient levels before planting.",
+      "Apply balanced fertilizers or specific nutrient supplements based on deficiency symptoms and soil tests.",
+      "Improve soil drainage to prevent waterlogging and root rot.",
+      "Ensure consistent and adequate watering to avoid drought stress.",
+      "Incorporate compost or other organic matter to improve soil structure and nutrient availability."
+    ],
+    "biological": [],
+    "chemical": [
+      "Use foliar sprays of specific nutrients (e.g., chelated iron, Epsom salts for magnesium) for a quick but temporary correction.",
+      "Adjust soil pH using lime (to raise pH) or sulfur (to lower pH) as recommended by a soil test."
+    ],
+    "notes": "Identifying the specific cause of yellowing is crucial for effective management. Start with a soil test and observation of the yellowing pattern (e.g., old vs. new leaves, interveinal vs. uniform)."
+  }
+}
\ No newline at end of file