Abstract: The impact of various insecticides viz., Promet 400CS (Seed treatment), Confidor 70WS, Furadan 3G, Basudin 60EC against pest insect complex of maize and on various yield components has been tested in this research. Confidor gave best results in reducing population of maize stem borer and maize shoot fly i.e., 1.708 and 2.375 per 20 plants respectively followed by Furadan i.e., 1.75 and 4.083 respectively. Basudin resulted in mean pest population as 2.33 (maize borer) and 5.375 (shoot fly). All the insecticidal treatments tested, significantly improved the plant characters over check. The highest plant height (241.82 cm) was observed in plots, which received seed treatment with Confidor.