Earheads are partially eaten with chalky appearance
Faecal pellets are visible with in ear heads.
Eggs are spherical in shape & creamy white in colour, laid singly
Management
Set up of light traps till mid night to monitor, attract and kill adults of earhead caterpillars.
Set up sex pheromone traps at 12/ha to attract male moths of Helicoverpa armigera from flowering to grain hardening.
Two applications of NPV at 10 days interval at 1.5 X1012 POB along with crude sugar 2.5 kg + cotton seed kernel powder 250 g on the earheads is effective in reducing the larval population of Helicoverpa.
