Biorational Management of Stem borer, Chilo partellus in Maize

Field experiments were conducted to evaluate the bioefficay of botanical pesticides, entomogenous microbes, insect growth regulators and natural insecticides in the management of stem borer, Chilo partellus in maize. Foliar application of spinosad (0.002%) and emamectin benzoate (0.002%) significantly reduced damage of C. partellus and the bioefficacy of these natural pesticides were found to be on par with that of monocrotophos @ 0.05%. The marginal increase in maize grain yield was in the order of 38.66 and 31.93 per cent, respectively for the treatments spinosad (0.002%) and emamectin benzoate (0.002%) over untreated check.