Symptom

• It is the most destructive disease.
• Dark necrotic lesions 2-5 mm in diameter are formed first on hypocotyls and cotyledons.
• Symptoms also appear on stem and severely infected plant gets blighted.
• Brown discolouration appears on the stem, dark brown spots with concentric rings up to 1 cm in diameter appear on the leaves which later develop into large lesions.
• Seeds also may be affected. Dark sunken lesions are produced on the testa. It may rot and damping off of seedlings occur.

• Avoid growing in low-lying areas and flooding under irrigation.
• Remove and destroy the diseased plants.
• Seed treatment with Carbendazim with 1.5g/kg of seed.
• Spray Mancozeb (0.25%) immediately after disease is noticed and repeat the spray 15 days later depending on the intensity of disease.