Bio-efficacy of newer insecticides against serpentine leaf miner, Liriomyza trifolii (Burgess) on watermelon

Abstract

A field experiment was conducted to evaluate the efficacy of certain newer insecticides against serpentine leaf miner, Liriomyza trifolii (Burgess) during summer 2019. Among the different chemicals (Abamectin 1.9 EC, 0.00057%, Triazophos 40 EC, 0.05%, Deltamethrin 2.8 EC, 0.0025%, Emamectin benzoate 5 SC, 0.002%, Imidacloprid 17.8 SL, 0.004%, Cyantraniliprole 10.26 OD, 0.018%, Cartap hydrochloride 50 SP, 0.075%), the diamide insecticide cyantraniliprole registered the lowest number of leaf mines (4.34%) and per cent damage on leaves (13.01%) followed by abamectin and deltamethrin. This establishes the supremacy of diamide insecticides in the effective management of serpentine leaf miner on watermelon.