The present article reports the results of investigation on the application of light traps by the farmers to controll Asian corn borer (ACB). at Dehui, Nengan and Panshi counties of Jilin province in China, The light traps were installed in the areas where larval overwintering in the corn stalks (residues) were a source of moths for egg—laying in corn fields in July. Light sources consisted of 200 or 400-w mercury-vapor lamps, spaced about 150m. The attracted moths were collected by a round cistern (1.2m diameter) under the lamp where they were killed by water and washing powder. The investigation showed that the light traps gave a satisfactory control of ACB under the heavy infestation condition all over the areas.