Helicoverpa armigera (Hübner): Incidence on important field crops

Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae), popularly known as Gram caterpillar or Pod borer or American bollworm is a dynamic and one of the serious insect pests in the world. In India, it has been recorded on more than 181 plant species from 45 families causing annual loss to the tune of Rs. 2,000 crores.This book give valuable information on its seasonal abundance, generation fluctuation between and within the host and ecology of the pest in relation to abiotic and biotic components and thus helps in evolving suitable pest management strategies against this pest.