The neem extract of different concentrations show significant effect to control pest of rice, betel leaf and vegetable. Garlic bulb extract, tobacco and kappettiya leaf extract, Eve's apple latex/ fruit/ seeds extract, lilac flower extract, neem leaf/ seeds or it oil all are act as potential insecticide to tea, rice, betel leaf and vegetables pest. The purpose of this review has revealed to control pest in some economically important crops through different plant extract for sustainable agriculture.