Vol. 11, Issue 5 (2022)

Author(s):
Samala Sreeja and Ashwani Kumar

Abstract:
The present study was conducted at the Central Research Field (CRF), Department of Entomology, SHUATS, Prayagraj during Rabi 2021-2022. Seven treatments were evaluated against Lipaphis erysimi, i.e., Imidacloprid 17.8% SL (T1), Cypermethrin 10% EC (T2), Spinosad 45% SC (T3), Metarhizium anisopliae (T4), Neem oil 5% (T5), NISCO MECH 333 (T6), NISCO Sixer Plus (T7) and untreated control (T8) were evaluated against mustard aphid (Lipaphis erysimi). Results revealed that, among the different treatments, the highest per cent population reduction of mustard aphid was recorded in Imidacloprid 17.8% SL (88.184%) followed by Spinosad 45% SC (81.498%), Cypermethrin 10% EC (76.937%). It is followed by Neem oil 5% (72.976%) and NISCO MECH 333 (68.251%), NISCO Sixer Plus (58.914%) and Metarhizium anisopliae (53.123%) was the least effective among all treatments. While, the highest yield 18.15 q/ha was obtained from the treatment Imidacloprid 17.8% SL as well as B:C ratio 1: 5.20 was obtained high from this treatment. It was followed by Spinosad 45% SC (1: 4.87), Cypermethrin 10% EC (1: 4.58), Neem oil 5% (1:4.15), MECH 333 (1: 3.98), Sixer plus (1: 3.46), Metarhizium anisopliae (1: 3.42), as compared to Control (1: 2.74).