Vol. 11, Special Issue 5 (2022)

Author(s):
Vijay Kumar, Hemant Swami, Lekha and Beerendra Singh

Abstract:
An experiment on the bio-efficacy of bio-rational insecticides against insect pests infesting black gram was conducted at Agronomy farm, Rajasthan College of Agriculture, Udaipur during Kharif, 2018. The experiment was laid out in a randomized block design with three replications in uniformly sized plots measuring 5x4.5 m with three replications. The Variety PU-31 of black gram was sown during last week of June with row to row and plant to plant spacing of 45x15 cm², respectively. Among different treatments, spinosad 45 SC @ 50 g a.i/ha caused maximum reduction in the population of aphid, jassid, thrips and whitefly. Next effective treatments were emamectin benzoate 5 SG @ 12g a.i./ha and indoxacarb 14.5 SC a.i./ha.