Effect Of Some Newer Insecticides And Biopesticides On Parasitization And Survival Of Trichogramma Chilonis Ishii

Effect of some newer insecticides along with microbials and a botanical on parasitization efficacy and mortality of Trichogramma chilonis reared on UV irradiated and unirradiated Helicoverpa armigera eggs revealed that HaNPV @1 x 109 POBs/ml and Bacillus thuringiensis @ 2ml/lil. were safer to the parasitoid whereas neem oil 1.0% and lamda-cyhalothrin 0.0015% reduced the parasitization. The lambda-cyhalothrin 0.0015% adversely affected the emergence of parasitoid. The neem oil did not adversely affect the development and emergence of parasitoid although it had reduced the parasitization. Amongthe insecticides tested, a synthetic pyrethroid, lambda-cyhalothrin 0.0015% was relatively less persistent over the other conventional insecticides whereas imidacloprid 0.005% and spinosad 0.01% had high residual toxicity to T. chilonis adults.