Web blotchCaused by: Phoma arachidicola
Problem Category: Fungal Disease
Symptoms: Circular, brown-black lesions on the upper surfaces of the leave; web or net-like brown lesions on leaves may form on leaves during periods of high humidity; as sisease progresses, lesions darken and develop a rough texture; lesions may cover entire leaf surface.
Comments: Disease emergence is favored by cool, moist conditions and periods of prolonged leaf wetness.
Management: Remove and destroy infested crop debris to prevent build up of inoculum in soil; rotate crops away from peanut; foliar fungicide applications are largely ineffective if conditions are favorable for the disease.
Control: spray 2 times 5% Cowdung+Asafoetida solution in 10 days interval.