Bio-efficacy of Different Biopesticides against Jassid, (Amrasca biguttula biguttula Ishida) Infesting Okra Abelmoschus esculentus (L.) Moench

An experiment was conducted in the field, Department of Entomology, RVSKVV, College of Agriculture, Gwalior (M.P.) in Kharif- 2018 and 2019.Efficacy of biopesticides against jassid on okra. Experiment was laid out in Randomized Block Design with eight treatments. Biopesticides used in the experiments were Beauveria bassiana @ 0.5 kg/ha, Vertilicillium lecanii @ 1.0 kg/ha, Neem oil 5% @ 2.5 litre, Neem leaf extract 5% @ 25 kg/ha, NSKE 5% @ 25 kg/ha, Garlic clove extract 5% @ 25 kg/ha and Panchgavya 3% @15 litre/ha. All the biopesticides treatments were found significantly effective in reducing the population of jassid over control (untreated) plots. The biopesticides treatments, NSKE 5% were found most effective in reducing the jassid population followed by neem oil 5%, V. lecanii, neem leaf extract 5% and garlic clove extract 5%. Whereas, panchgavya 3% was found least effective in both the years. The highest fruit yield (119.56 q/ha) was recorded in NSKE 5% followed by B. bassiana and neem oil 5%. Whereas, minimum fruit yield was recorded in panchgavya 3% in both years. The highest net profit (27,128 Rs/ha) was obtained from the plots treated with B. bassiana followed by NSKE 5% (25,938 Rs/ha) and maximum benefit ratio in the B. bassiana (1:14.13) followed by V. lecanii (1:8.36), NSKE 5% (1:8:11) and garlic clove extract 5% (1:6.78).