Bioefficacy of insecticides against predatory spider in soybean
Bokan SC, Zanwar PR, Kadam DR and More DG
Field experiments was conducted in kharif season during 2017 and 2018 to evaluate bio-efficacy of insecticides against spider in soybean. The pooled data of both the years indicated that there were highest population of spider recorded in control plot (0.97 spider/mrl), chlorantraniliprole 0.4 GR (0.92 spider/mrl) and thiamethoxam 30 FS (0.89 spider/mrl). The lowest population found in imidacloprid 48 FS (0.82 spider/mrl) and phorate 10 CG (0.85 spider/mrl) followed by fipronil 0.3GR (0.87 spider/mrl) and clothiniadin 50 WDG (0.88 spider/mrl). The pooled data of two years indicated that the maximum yield of soybean was recorded in chlorantraniliprole 0.4 GR (26.46 q/ha) followed by clothianidin 50 WDG (25.93 q/ha), fipronil 0.3 GR (25.22 q/ha) and thiamethoxam 30 FS (23.42 q/ha) at par with each other. whereas the lowest yield was found in control plot (18.02 q/ha) and phorate 10 CG (22.40 q/ha).