Toxicity of newer insecticides to lady bird beetle, Cryptolaemus montruzeiri Mulsant (Coccinellidae: Coleoptera) under laboratory condition

Among the various insecticides tested on the grubs of C. montrouzieri, buprofezein, azadirachtin and dichlorvas were found to be the safest causing minimum per cent mortality of 33.33, 34.44 and 48.89 per cent respectively. However, highest mortalities of grubs were recorded in imidacloprid, carbaryl and acetamiprid recording 96.67, 92.22, 91.11 per cent mortality of grubs respectively. Buprofezin 25 EC @ 0.01% and azadirachtin 0.03% EC were found safe for adults recording 10.00 and 13.33 per cent mortality, respectively while highest adult mortality was recorded in carbaryl (97.38%) followed by acetamiprid (93.33%) and imidacloprid (92.22%).