Abstract: The present invention provides an insecticidal agent useful for the controlling the insect pests belonging to the order Lepidoptera viz. Helicoverpa armigera, Pectinophora gossypiella, Spodoptera litura, or Earias vitella or mixed populations thereof on different crops comprising inorganic molecular sieve dissolved in water and naturally occurring inert adhesive such as gum arabica or any other commercially available inert sticker. It also deals with an effective method for controlling the said insect pests using said insecticidal agent. Because of very high activity, low application rates of these compounds are employed for maintaining the control of the pest. These relatively low application rates, together with practically no mammalian toxicity possessed by the compounds of the present invention makes them more effective as well as eco-friendly.