author(s)
Renuka D Pawar, Harish R Sawai, Vrunda S Thakare and Shreyasha V Wankhade

abstract
Some new insecticides viz.,chlorantraniliprole 18.5 SC (0.005%), flubendiamide 20 WG (0.005%), buprofezin 25 SC (0.05%), Lambda cyhalothrin 5 EC (0.003%), thiamethoxam 25 WG (0.005%), dinotefuran 20 SG (0.006%), thiacloprid 21.7 SC (0.021%) and azadirachtin 5% w/w (0.002%) were tested to know their effect on per cent parasitisation of UV irradiated and unirradiated Corcyra cephalonica eggs by Parasitoid Trichogramma japonicum and to assess the residual toxicity of these insecticides on adult T. japonicum under laboratory conditions. The results indicated that lambda cyahalothrin was most harmfulcausing maximum reduction in parasitisation, whereas minimum reduction in per cent parasitisation were observed under insecticide treatments azadirachtin, buprofezin, flubendiamide and chlorantraniliprole in both UV irradiated and unirradtiated eggs of Corcyra cephalonica. However, the insecticides differed considerably in their residual toxicity towards T. japonicum. Amongst them, azadirachtin was recorded safest followed by chlorantraniliprole and buprofezin, whereas lambda cyhalothrin most affected survival of T. japonicum causing maximum adult mortality upto 10 days.