The experiment on biological activity of botanical oils and leaf powders against R. dominica was conducted under laboratory condition. results revealed that among the powder, castor oil 2.0% neem powder 1% achieved maximum adult mortality at 72 hr after treatment (91.67% 81.67%) as best grain protectants with least seed damage (4.33% 3.67%), weight loss (2.01% 1.04%), F1 emergence (3.67 4.33) h...