Comparative efficacy of different bio- pesticide with Imidacloprid against mustard aphid [Lipaphis erysimi (Kalt.)] on mustard (Brassica juncea L.)

Abstract

The present study was conducted at the Central Reacher Field (CRF), Department of Entomology, SHUATS, Prayagraj during Rabi season 2023- 2024. The management of Mustard Aphid was done using 7 different treatment Control (T0), Imidacloprid 17.8SL (T1), Spinosad 45 SC (T2), Nisco sixer plus (T3), Metarhizium anisopliae (2x108 CFU/gm) (T4), Beauveria bassiana (2x108 CFU/gm) (T5), NSKE 5% (T6) and Neem oil 5% (T7) were evaluated against mustard aphid (Lipaphis erysimi). Result revealed that, among the different treatments, the highest percent population reduction of mustard aphid was recorded in Imidacloprid 17.8 SL (70.114%), followed by Spinosad 45 SC (55.350%), followed by the Nisco sixer plus (36.340%), Neem oil 5% (22.634%), NSKE 5% (17.531%), Beauveria bassiana (2x108 CFU/gm) (12.140%), and last the least effective Metarhizium anisopliae (2x108 CFU/gm) (10.312%). While the highest yield 18.33 q/ha was obtained from the treatment Imidacloprid 17.8 SL as well as C:B ratio (1:6.57) was obtain high from this treatment. It was followed by the Spinosad 45 SC (1:5.62), then Nisco sixer plus (1:4.76), Neem oil 5% (1:3.88), NSKE 5% (1:3.97), Beauveria bassiana (2x108 CFU/gm) (1:2.99) and last the least effective Metarhizium anisopliae (2x108 CFU/gm) (1:2.76). as compared to control (1:2.54).