Vol. 10, Special Issue 7 (2021)

Author(s):
Pravin G Shinde, Pratap A Divekar, DK Singh, Deepak Singh Pal and Ansar Nadaf

Abstract:
Mustard aphid, Lipaphis erysimi (Kalt.) is a key pest on rapeseed-mustard. Experiment were undertaken to study the efficacy of biopesticides against mustard aphid in mustard crop. The efficacy of bio pesticides viz., Beauveria bassiana, Verticillium lecanii, azadirachtin and a standard insecticide check, dimethoate was studied against mustard aphid, Lipaphis erysimi under field conditions at Oil seed farm Kalyanpur, Chandrashekhar Azad University of Agriculture and Technology (C.S.A.U.A.T.), Kanpur, India. All the bio pesticides and standard check insecticide dimethoate were found equally effective in reducing the aphid population over the untreated control. The reduction of aphid after the application of all biopesticides and dimethoate was observed significantly superior over control at all the interval of observation. However, all the bio pesticidal treatments singly and in their combination were at par with the standard check insecticide dimethoate in terms of mean aphid population after the application of three sprays. Therefore, we recommend the use of biopesticides Beauveria bassiana, Verticillium lecanii and azadirachtin individually or in their combination as an eco-friendly and cost-effective alternative for the management of mustard aphid, Lipaphis erysimi (Kalt.).