Vol. 12, Issue 7 (2023)

Author(s):
Chodem Aswitha and Usha Yadav

Abstract:
A field trail was conducted at the Central Research Farm (CRF), Department of Entomology, SHUATS, Prayagraj during Rabi 2022-2023. With an investigation entitled eight treatments were evaluated against Lipaphis erysimi, i.e., NSKE 5% (T₁), Neem oil 5% (T₂), Imidacloprid 17.8% SL+NSKE 5% (T₃), Imidacloprid 17.8% SL (T₄), Castor oil (T₅), Cow urine (T₆), Karanj oil (T₇) and untreated Control (T₈). Results revealed that, among all the two sequential spraying of the treatments, Imidacloprid 17.8% SL+NSKE 5% (29.64%). Imidacloprid 17.8% SL (34.05%) is found to be the next best treatment followed by Neem oil (38.70%). It is followed by Karanj oil (41.80%). NSKE 5% (45.87%) is found to be the next effective treatment. It was followed by Castor oil (50.35%) and Cow urine (55.88%) was the least effective among all treatments. While, the highest yield 17.33 q/ha was obtained from the treatment Imidacloprid 17.8% SL+NSKE 5% as well as C:B ratio (1:4.73) was obtained high from this treatment. It was followed by Imidacloprid 17.8% SL (1:4.52), Neem oil 5% (1:3.99), Karanj oil (1:3.21), NSKE 5% (1:3.07), Castor oil (1:2.70), Cow urine (1:2.28), as compared to Control (1:1.77).