Vol. 12, Issue 2 (2023)

Author(s):
Bazla, Amit Kumar Singh, Uma Shankar and Yousra Mukhtar

Abstract:
A field experiment was conducted at Entomology farm, Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu (SKUAST-J) in rabi 2020-21 to evaluate the efficacy of selected insecticides against Thrips tabaci L. in onion. A total of nine treatments viz., Acetamiprid 20 SP, Fipronil 5 SC, Emamectin benzoate 5 SG, Imidacloprid 17.8SL, Spinosad 45SC, Thiamethoxam 25WG, Beauvaria basiana and Metarhizium anisoplae along with control were tested for their efficacy against onion thrips 18^th standard week followed by the second spray in 21^st standard week. All the treatments were statistically superior over control in reducing the population of T. tabaci in onion. Among different insecticides tested, Imidacloprid 17.8 SL (0.3ml l^-1) proved to be superior over all other insecticides in reducing the population of onion thrips after two sprays. Thiamethoxam 25 WG (0.25gl^-1), Acetamiprid 20SP (0.2gl^-1) and Fipronil 5C (1.5mll^-1), however, also provided efficient control over the target insect pest and were at par with Acetamiprid 20SP (0.2g l^-1).