Efficacy of Insecticides and Biopesticides Against Major Sucking Insect Pests of Indian Bean <i>Lablab Purpureus</i> Var. <i>Typicus</i>

Abstract

This study was conducted to evaluate the efficacy of some insecticides and biopesticides against aphid Aphis craccivora (Koch), leafhopper Empoasca fabae (Harris) and whitefly Bemisia tabaci (Genn.) on Indian bean during kharif, 2019 at the SKN College of Agriculture, Jobner, Jaipur. On the basis of reduction in incidence, spiromesifen 22.9SC, diafenthiuron 50WP and standard check (alternate spray of dimethoate 30EC and malathion 50 EC) were observed to be the most effective. The pyriproxyfen 10.8EC, emamectin benzoate 5SG, chlorfenapyr 10SC and spinosad 45SC were moderately effective; whereas, the Beauveria bassiana 1.15WP, Metarhizium anisopliae 1.15WP, azadirachtin 0.03EC and NSKE (5.0%) were the least effective. The maximum pod yield of 91.25 q/ ha was obtained with spiromesifen 22.9SC at par with that of diafenthiuron 50WP (88.32 q/ ha). The maximum benefit cost ratio of 57.96 was obtained with the standard check followed by pyriproxyfen 10.8EC (36.86) and emamectin benzoate 5SG (27.47).