Field efficacy of insecticide mixtures against the pod borer and leaf eating caterpillar in cowpea

Abstract

Efficacy of insecticide mixtures viz., chlorantraniliprole 8.8% + thiamethoxam 17.5% SC @ 150 g a.i. ha-1, lambda cyhalothrin 4.6% + chlorantraniliprole 9.3% ZC @ 30 g a.i. ha-1, thiamethoxam 12.6% + lambda cyhalothrin 9.5% ZC @ 27.50 g a.i. ha-1, beta cyfluthrin 8.49%+ imidacloprid 19.81% SC @ 15.75+36.70 g a.i. ha-1, flubendiamide19.92% w/w + thiacloprid 19.92% w/w SC @ 48+48 g a.i. ha-1 against the spotted pod borer, Maruca vitrata and leaf eating caterpillar, Spodoptera litura Fab. infesting cowpea was studied at Vegetable farm, Kalliyoor, Thiruvananthapuram during August - November 2017. Lambda cyhalothrin 4.6% + chlorantraniliprole 9.3% ZC @ 30 g a.i ha-1, thiamethoxam 12.6% + lambda cyhalothrin 9.5% ZC @ 27.5 g a.i ha-1 and chlorantraniliprole 8.8% + thiamethoxam 17.5% SC @ 150 g a.i ha-1 were found superior in the management of M. vitrata and S. litura over other treatments.