| { | |
| "classes": { | |
| "Healthy": 0, | |
| "Gray_Leaf_Spot": 1, | |
| "Blight": 2, | |
| "Common_Rust": 3 | |
| }, | |
| "details": { | |
| "Healthy": { | |
| "description": "Plants show no signs of disease.", | |
| "characteristics": [ | |
| "Vibrant green color", | |
| "Uniform leaf structure", | |
| "No spots or lesions", | |
| "Normal growth and development" | |
| ], | |
| "importance": "Represents the ideal state of the crop, with maximum yield potential." | |
| }, | |
| "Gray_Leaf_Spot": { | |
| "causative_agent": "Cercospora zeae-maydis, C. sorghi var. maydis", | |
| "symptoms": [ | |
| "Small, regular, elongated brown-gray necrotic spots growing parallel to the veins", | |
| "Lesions may reach 3.0 x 0.3 cm", | |
| "Lesions may coalesce, producing a complete burning of large areas of the leaves" | |
| ], | |
| "environmental_conditions": [ | |
| "Prevalent in subtropical and temperate, humid areas", | |
| "Favored by extended periods of leaf wetness and cloudy conditions" | |
| ], | |
| "impact": "Can result in severe leaf senescence following flowering and poor grain fill", | |
| "notes": [ | |
| "Also known as cercospora leaf spot", | |
| "Minimum tillage practices have been associated with increased incidence" | |
| ] | |
| }, | |
| "Blight": { | |
| "note": "This typically refers to Northern Corn Leaf Blight, but could include other types of blight", | |
| "causative_agent": "Setosphaeria turcica (Teleomorph), Exserohilum turcicum (Anamorph)", | |
| "symptoms": [ | |
| "Small, oval, water-soaked spots on leaves", | |
| "Spots grow into elongated, spindle-shaped necrotic lesions", | |
| "Lesions may appear first on lower leaves and increase in number as the plant develops", | |
| "Can lead to complete burning of the foliage" | |
| ], | |
| "environmental_conditions": [ | |
| "Occurs worldwide, particularly in areas with high humidity and moderate temperatures", | |
| "Prevalent during the growing season" | |
| ], | |
| "impact": "When infection occurs prior to and at silking and conditions are optimum, it may cause significant economic damage" | |
| }, | |
| "Common_Rust": { | |
| "causative_agent": "Puccinia sorghi", | |
| "symptoms": [ | |
| "Small, elongate, powdery pustules over both surfaces of the leaves", | |
| "Pustules are dark brown in early stages of infection", | |
| "Later, the epidermis is ruptured and the lesions turn black as the plant matures" | |
| ], | |
| "environmental_conditions": [ | |
| "Found worldwide in subtropical, temperate, and highland environments with high humidity" | |
| ], | |
| "impact": "Can reduce yield, especially if infection is severe before or during tasseling", | |
| "notes": [ | |
| "Most conspicuous when plants approach tasseling", | |
| "Alternate host (Oxalis spp.) may show light orange colored pustules" | |
| ] | |
| } | |
| }, | |
| "general_notes": [ | |
| "Early detection and proper identification of these diseases are crucial for effective management.", | |
| "Integrated pest management strategies, including resistant varieties, crop rotation, and timely fungicide applications, can help control these diseases.", | |
| "Climate conditions, particularly humidity and temperature, play a significant role in the development and spread of these diseases.", | |
| "Many diseases can have similar symptoms, so careful observation and sometimes laboratory analysis may be necessary for accurate diagnosis.", | |
| "The severity of disease impact often depends on the timing of infection relative to the plant's growth stage.", | |
| "Some pathogens can infect multiple parts of the plant, including leaves, stalks, and ears." | |
| ] | |
| } | |