Efficacy of novel insecticides against cutworms (Lepidoptera: Noctuidae) infesting cabbage

Abstract

Persistence toxicity of seven new insecticides viz; bifenthrin, chlorantraniliprole, cypermethrin, emamectin benzoate, flubendiamide, novaluron and spinosad was evaluated against third instar larvae of Agrotis ipsilon (Hufnagel) and A. segetum (Denis & Schiffermuller) under laboratory conditions. The result revealed that all the selected insecticides caused mortality of third instar larvae of both the species upto 15th day of spray except emamectin benzoate and cypermethrin where the mortality was recorded upto 10th and 7th day of spray, respectively. Flubendiamide 0.004% showed highest PT value of 1099.975 and 1125 against the third instar larvae of A. ipsilon and A. segetum, respectively.