EVALUATION OF IMIDACLOPRID 200SL(CONFIDOR 200SL )FOR ITS EFFICACY AGAINST GRAPE THRIPS SCIRTOTHRIPS DORSALIS(HOOD) AND PHYTOTOXICITY

Studies were conducted on the management of thrips in grape with nine treatments comprised of four doses of confidor 200%SL (0.3, 0.4, 0.8 and 1.6ml/lit), Acetamaprid 20% SP @ 0.3gm,Thiamethoxam 25%WG @ 0.3 gm, Dimethoate 30EC (standard check) @ 1.7 ml/lit , water spray and control in randomized block design replicated 4 times with six vines per treatment at two locations in Bijapur, Karnataka. All the four concentrations of Imidacloprid 200%SL were found at par with each other in reducing the thrips population at 1, 3 and 7 days after spraying and were at par with other two neonicotinoid molecules. All the three neonicotinoid molecules were significantly superior over standard check. Water spray was found significantly inferior to all the treatments and was on par with control. None of the concentrations of Imidacloprid 200% SL were found to cause phytotoxicity symptoms on grape vine.