Efficacy of novel insecticide against Helicoverpa armigera and residue study of chloranatraniliprole in tomato

An attempt was made to evaluate the efficacy of some novel insecticides for the management of Helicoverpa armigera infesting tomato and furthermore dissipation behaviour and residue study of insecticide was carried out which was found to be superior in term of the efficacy against H. armigera. Among different insecticides tested, chlorantraniliprole 18.5 SC recorded lowest number of mean population of larvae (0.28/ five plants) so found most effective and followed by indoxacarb 14.5SC and flubendiamide 20 WG while quinalphos 25