author(s)
Sathish BN, GG Radadia and Abhishek Shukla

abstract
An experiment were carried out during 2017-18 and 2018-19 to evaluate different bio-pesticides against coconut eriophyid mite, A. guerreronis under laboratory condition at Acarology Laboratory, Department of Agricultural Entomology, N.M. College of Agriculture, Navsari Agricultural University, Navsari (Gujarat). Among different bio-pesticides used Hirsutella thompsonii (Fisher) 5g/l was found most effective treatment by recording highest per cent of mite mortality (58.89%) which was followed by treatment neem oil 20ml/l (51.11%).The treatment Beauveria bassiana (Balsamo) 5g/l was found statistically at par with Verticillium lecanii (Zimmerman) 5g/l by recording 32.68 and 32.55 per cent mite mortality, respectively. The descending order of effectiveness of remaining bio-pesticides were karanj oil 20ml/l, Paecilomyces fairnescence (Hotmskiold) 5g/l, nergundi oil 10ml/l and Metarhizium anisopliae (Metschnik off) 5g/l which showed 32.29, 32.26, 31.49 and 30.74 per cent mite mortality, respectively. The treatment M. anisopliae 5g/l was found to be least effective.