Efficacy of different bio-pesticides against brinjal mite, Tetranychus urticae Koch

Abstract

An experiment was conducted to assess the efficacy of different nine bio-pesticides against brinjal mite viz. tobacco decoction 2%, neem seed kernel extract 5%, neem oil 0.5%, Azadirachtin 0.0006% (Gronim), Azadirachtin 0.0006% (Vanguard), Azadirachtin 0.0006% (Neemazal), Lecanicilium lecanii 0.4%, Metarhizium anisopliae 0.4% and Beauveria bassiana 0.4% compared with control. Of these, neem oil 0.5% found most effective followed by NSKE 5% against mite. The bio-pesticides Neemazal 0.0006% and Gronim 0.0006% also proved better in suppressing mite population in brinjal. The treatment of B. bassiana 0.4% proved least effective in mitigating the mite population in brinjal as it recorded significantly the highest population of the pest.