Vol. 11, Special Issue 8 (2022)

Author(s):
Badisa Sairam and Ashwani Kumar

Abstract:
A field trail was conducted at the Central Research Field (CRF), Department of Entomology, SHUATS, Prayagraj during rabi 2021-2022. With an investigation entitled seven treatments were evaluated against Lipaphis erysimi, i.e., Spinosad 45% SC (T1), Beauveria bassiana (T2), Metarhizium anisopliae (T3), Bacillus thuringiensis (T4), Neem oil 5% (T5), NISCO MECH 333 (T6), Fipronil 5% SC (T7) and untreated Control (T8). Results revealed that, among all the treatments highest per cent reduction of mustard aphid was recorded in Fipronil 5% SC (65.11%). Spinosad 45% SC (61.85%) is found to be the next best treatment followed by MECH 333 (57.98%). It is followed by Bacillus thuringiensis (57.02%). Beauveria bassiana (55.76%) is found to be the next effective treatment. It was followed by Neem oil 5% (52.93%) and Metarhizium anisopliae (50.46%) was the least effective among all treatments. While, the highest yield 20.17 q/ha was obtained from the treatment Fipronil 5% SC as well as B:C ratio (1: 5.28) was obtained high from this treatment. It was followed by Spinosad 45% SC (1: 4.24), MECH 333 (1:4.13), Bacillus thuringiensis (1:4.06), Beauveria Bassiana (1:3.61), Neem oil 5% (1:3.56), Metarhizium anisopliae (1:3.07), as compared to Control (1: 2.74).