D.K. BAIRWA, J.K. SHARMAAND H. VERMA

The efficacy of synthetic insecticides and biopesticides was evaluated against the thrips inpesting mothbean in a field trial conduded at SKN college of Agriculture, Jobner during kharif 2003 & 2007. Out of nine treatments evaluated, methyl demeton (0.025%) proved most effective against thrips followed by dimethoate (0.03%) and monocrotophos (0.036%). The treatment of karanj seed extract (5%) proved least effective followed by NSKE (5%) and nimbecidine (5 ml ); whereas, acephate (0.037%), imidacloprid (0.002%) and M. anisopliae (2 × 10 spores l ) were of middle order of effectiveness. The maximum yield of 6.17 q/ha was obtained in the treatment of monocrotophos (0.036%).