Effect of newer insecticides against maize aphid, Rhopalosiphum maidis (Fitch)

Abstract

The field investigations were carried out to evaluate the efficacy of seven newer insecticide molecules viz., profenophos 50 EC@ 30 ml, indoxacarb 14.5 SC @ 8.5 ml, emamectin benzoate 5 SG@ 4 g, spinosad 45SC @ 4 ml, thiamethoxam 12.6 + lambdacyhalothrin 9.5@ 2.5 ml, chlorantraniliprole 18.5 SC 3 ml, and flubendiamide 49.35 SC @ 2.5 per 10 lit. of water respectively. The results revealed that all the insecticidal treatments were significantly effective against aphid over untreated control. Among that thimethoxam 12.6 + lambda cyhalothrin 9.5 ZC was most effective treatment. The next effective insecticides were profenophos 50 EC, emamectin benzoate 5 SG, indoxacarb 14.5 SC, chlorantraniliprole 18.5 SC, flubendiamide 39.35 SC and spinosad 45 SC.