Larva’s head alone thrust inside the pods and the rest of the body hanging out.
Pods with round holes
Small spots appear on the leaves. These spots increase in size and produces brown ring. In ring, lines are purple in colour.
When the disease increases,these spots become large and interconnected with each other
Eggs – are spherical in shape and creamy white in colour, laid singly
Larva - shows colour variation from greenish to brown. Green with dark brown grey lines laterally on the body with lateral white lines and also has dark and pale bands.
Pupa – brown in colour, occurs in soil, leaf, pod and crop debris
Adult - light pale brownish yellow stout moth. Fore wing grey to pale brown with V shaped speck.Hind wings are pale smoky white with a broad blackish outer margin.
Management
For pod borers, raise one row of sunflower as intercrop for every 9 rows of pigeon pea and plant maize as border crop.
Pheromone traps for Helicoverpa armigera 12/ha
Bird perches 50/ha
Mechanical collection of grown up larva and blister beetle
Ha NPV 3 x1012 POB/ha in 0.1% teepol
Apply any one of the following insectcides: Azadirachtin 0.03 % WSP 2500-5000 g/ha Bacillus thuringiensis serovar kurstaki (3a,3b,3c) 5%WP1000-1250 g/ha Dimethoate 30% EC 1237 ml/ha Emamectin benzoate 5% SG 220 g/ha Indoxacarb 15.8% SC 333 ml/ha Chlorantraniliprole 18.5 SC 150ml/ha Spinosad 45%SC 125-162 ml/ha NSKE 5% twice Neem oil 2% Phosalone 0.07% (Spray fluid 625 ml/ha) Note : Insecticide / Ha NPV spray
