Vol. 10, Special Issue 12 (2021)

Author(s):
Anugu Anil Reddy, Narendra Reddy C, Srinivasa Reddy S, Manohar Rao A and Narendar Reddy S

Abstract:
An experiment was conducted during kharif, 2015 to evaluate the efficacy of seven insecticides viz., fipronil 5% SC @ 500 g a.i ha^-1, spinosad 45% SC @ 125 g a.i ha^-1, chlorantraniliprole 20% SC @ 30 g a.i ha^-1, profenophos 50% EC @ 400 g a.i ha^-1, lambda cyhalothrin 5% SC @ 15.63 g a.i ha^-1, imidacloprid + beta cyfluthrin 300% OD @ 30 g a.i ha^-1 and dimethoate 30 % EC @ 300 g a.i ha^-1 against chilli thrips. The dissipation pattern of fipronil 5% SC @ 500 g a.i ha^-1 was studied collecting samples at regular intervals i.e. 0, 1, 3, 5, 7, 10 and 15 days after last spray and analyzed. The initial deposits of 1.47 mg kg^-1 were dissipated to below detectable levels (BDL) by 15^th day after third spray on chilli. The residues of 0.97, 0.52, 0.41, 0.36, and 0.16 mg kg^-1 were recorded at 1, 3, 5, 7 and 10 days after last spray, respectively.