Effects of sprayable and granular formulation of insecticides on the Dehydrogenase activity of soil in rice ecosystem

Field and laboratory experiments were conducted to investigate twelve insecticides comprising granular and spray formulations of imidacloprid, cartap hydrochloride, fipronil, chlorantraniliprole along with carbofuran, phorate and monocrotophos as insecticidal checks for their effects on soil dehydrogenase activity in rice ecosystem during kharif 2015.