Vol. 9, Issue 9, Part D (2025)

A field trial was conducted in randomized block design to evaluate the bio-efficacy of biodynamics and botanicals against major insect pests of summer green gram (var. Shikha) and its impact on their natural enemies. The experimental treatments were comprised with four biodynamics (Agniastra, Brahmastra, Dashparni ark and Neemastra) and three botanicals (Neem oil, NSKE and Tobacco leaf decoction) by taking the dose @ 5% of each treatment against the insect pests and compared with control plot. The results revealed that the most effective treatment was found to Neem oil 5% (T₅) against whitefly and jassids with the population reduction of 51.55 and 59.96%, respectively followed by NSKE 5% (T₆), Brahmastra 5% (T₂), Agniastra 5% (T₁), Tobacco leaf extract 5% (T₇), Neemastra 5% (T₄) and Dashparni ark 5% (T₃). The maximum grain yield (9.25q/ha) was recorded from the treatment of Neem oil 5% (T₅) followed by NSKE 5% (T₆) and Brahmastra 5% (T₂). The highest cost-benefit ratio for one hectare was registered from the treatment of Brahmastra 5% (T₂) with (1:8.34) followed by Agniastra 5% (1:7.18) and Neemastra 5% (1:6.03). Impact of all biodynamics and botanicals on natural enemies of insect pests were found to be safer because treatments were found to be statistically non-significant over the control.