Comparative efficacy of Insecticides against Mustard aphid, Upaphis erysimi Kalt

Difenthiuron 50 WP @ 50 g a.i. ha−1 proved most effective in managing the aphids incidence and realizing higher yield of mustard (10.70 q ha−1) followed by thiamethoxam 25 WG @ 25 g a.i. ha−1 (10.53 q ha−1) and acetamiprid 25 SP @ 40 g a.i. ha−1 (10.12 q ha−1). Treatments viz. imidacloprid 200 SL @ 50 g a.i. ha−1 and betacyfluthrin 25 SC @ 25 g a.i. ha−1 were comparatively less effective in reducing the pest population and they were statistically equally in realizing the yield of mustard but superior to achook 0.15 EC @ 800 g a.i. ha−1 (8.68 q ha−1) and dimethoate 30 EC @ 400 g a.i. ha−1 (8.85 q ha−1).