The field trial was conducted at the Central field, Department of entomology SHUATS, Allahabad during Kharif
from August to November 2016 investigation entitled â€œComparative bioefficacy of selected chemical insecticides and Biorationals against shoot and fruit borer, [Earias vittella
(Fabricius)] of okra. Seven treatments were evaluated against Earias vittella
Spinosad 45% SC@ 0.05%, T2
Imidacloprid 17.8% SL@ 0.3 ml/l, T4
Neemoil@3%, T3 Verticilium lecanii
, T5 Beauveria bassiana
NSKE 5%, T7
Neem leaf extract 5%
were evaluated against shoot and fruit borer, Earias vittella.
The best and most economical treatment was T1 spinosad 45 SC (1:5.92), followed by T2 (1:4.87), T3 (1:4.40), T4 (1:4.65), T5 (1:4.28), T6
(1:3.15), as compared to control T0 (1:2.31). Spinosad 45SC, Imidacloprid 17.8 % SL, Beauveria bassiana
, and Neem oil recorded the minimum shoot infestation by 5.01, 9.89, 11.40 and 11.85 percent respectively. In fruit infestation Spinosad 45 % SC, Imidacloprid 17.8 % SL, Beauveria bassiana
, and neem oil recorded by 7.03, 9.00, 11.77 and 12.99 percent, respectively. The highest yield was noticed in Spinosad 45SC (197.22 q/ha) and Imidacloprid 17.8% SL (156.25 q/ha).
Sachin Harilal Pachole, Sasya Thakur and Sobita Simon. Comparative bioefficacy of selected chemical insecticides and biorationals against shoot and fruit borer, (Earias vittella Fabricius) on okra [Abelmoschus esculentus (L.) Moench]. J Pharmacogn Phytochem 2017;6(4):1836-1839.