author(s)
Sheela N and Shinde CU

abstract
The insecticides effectively check the insect pests but can be troublesome to natural enemies if applied in excess or improperly. A laboratory experiment on relative toxicity of spotted ladybird beetle, Harmonia octomaculata (Fabricius) was conducted under laboratory conditions to find out the safer insecticides to the predator. Study on relative toxicity of different insecticides against adults of H. octomaculata revealed that there were no insecticides under testing found highly toxic to the adult of H. octomaculata while, the treatment of novaluron 10 EC was slightly harmful to the adults. Moreover, clothianidin 50 WDG, diafenthiuron 50 WP, acetamiprid 20 SP, spinosad 45 SC, imidacloprid 17.8 SL, thiamethoxam 25 WG, flonicamid 50 WG, and dinotefuran 20 SG were found to be harmless to the adults of H. octomaculata. The treatment of control (Water dipping) exhibited nil adult mortality during the present investigation.