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Bio-efficacy of insecticides against Thrips tabaci on Onion and adverse effect on natural enemy Yadav Deepika, Khinchi S.K., Sharma Purushotam, Jangir Hitesh Department of Agricultural Entomology, S.K.N. College of Agriculture, Jobner, Jaipur - 303 328 (Rajasthan) Online published on 7 April, 2020. Abstract The efficacy of nine insecticides and an untreated control (two applications) tested against thrips, revealed that fipronil (0.01%) proved to be most effective, followed by clothianidin (0.01%). The next most effective insecticides were acetamiprid (0.004%) and thiamethoxam (0.025%). Thiacloprid (0.04%) and malathion (0.05%) ranked in middle order of efficacy whereas, emamectin benzoate (0.002%), chlorfenapyr (0.01%) and chlorantraniliprole (0.05%) were proved to be least effective against thrips. Natural enemies like Coccinelis beetle was safe with insecticidal sprays. Top Keywords Allium cepa, Bioefficacy, Natural enemies, Thrips tabaci. Top | |
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