Contact toxicity of different insecticides against egg parasitoid, Trichogramma japonicum Ashmead under laboratory condition

Abstract

The present investigation was undertaken to evaluate the contact toxicity of seven different insecticides against female adult of Trichogramma japonicum. The results indicated that none of the insecticide was found safer except control treatment to the female of T. japonicum under contact toxicity trial during the present investigation. However, insecticides viz., Flubendiamide 39.35 SC, chlorantraniliprole 18.5 SC and lambda-cyhalothrin 5 EC were considered as slightly harmful. Furthermore, thiamethoxam 25 WG and thiacloprid 21.7 SC were found moderately harmful to the female of T. japonicum. Moreover, fipronil 5 SC and quinalphos 25 EC were found detrimental and grouped as harmful to the female of T. japonicum by causing cent per cent adult mortality.