THE COMPARATIVE EFFICACY OF CERTAIN CHEMICAL AND BOTANICAL ACARICIDESAGAINST TETRANYCHUS URTICAE ON ASHWAGANDHA

Abstract

Comparative efficacy of certain chemical and botanical acaricides against the two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae) major pests occurred on Ashwagandha was studied at B.B.D. Govt. P.G. College, Chimanpura, Jaipur during cropping year 2012-2013 and 2013-2014. Eight pesticides were evaluated against T. urticae infesting ashwagandha, out of which Fenazagnite (.05%) was found to be the most effective in the present study where Propargite (.05%) was recorded to be at par in effectiveness with Fenazagnite and NSKE was found to be most effective among the plant extracts and was at par with the treatment of Azadirachtin.