Efficacy of selected insecticides against aphids and Leaf hoppers in Cowpea (Vigna unguiculata (L.) Walp.)

Abstract

Field experiment conducted during kharif 2016-2017 to evaluate efficacy of insecticide against aphids and leaf hoppers. 6 insecticides were used. Buprofezin 25 SC @ 250 g a.i./ha, Profenophos 50 EC @ 500 g a.i./ha, Azardirachtin 300 ppm @ 0.03% Imidacloprid 17.8 SL @ 25 g a.i./ha, Quinalphos 25 EC @ 250 g a.i./ha, Chlorpyrifos 20 EC @ 200 g a.i./ha. Foliar application of imidacloprid 17.8 SL @ 0.30 ml/l (95.66, 100), profenophos 50 EC @ 2 ml/l (92.45, 99.83), chlorpyrifos 20 EC @ 2 ml/l (84.90, 100) and quinalphos 25 EC @ 2 ml/l (81.69,100) recorded highest protection against leafhopper and aphids respectively.