It is a soluble insecticide which containes 50% Cartap Hydrochloride active ingredient and balance adjuvants. Cartap hydrochloride 50% S.P. is an insecticide highly effective for the control of stem borer and leaf folder on rice. Cartap Hydrochloride has a quite different mode of action from that of other insecticides. It is effective against both chewing and sucking insects and controls at a low concentration. Cartap hydrochloride controls almost all stages of insects and the efficacy of Cartap hydrochloride is prolonged. It has no effect to natural enemies of insect pests and it is practically nontoxic to mammals.