The object is the present invention is to provide an insect controlling material having excellent performance. The present invention relates to a net-like insect controlling material with excellent performance having substantially uniform meshes, made of filaments each of which contains a thermoplastic resin and an insect controlling component which shows a vapor pressure of 1 X 10-6 mmHg or lower at 25 C, wherein the content of the insect controlling component in the insect controlling material is from 0.1 to 10% by weight； the amount of the insect controlling component on the surface of the insect controlling material is from 0.03 to 3 g per 1 kg of the insect controlling material； the void area of each of the meshes is from 2 to 36 mm2； and the bleed coefficient of the insect controlling component found by an acetone cleansing method is from 0.3 to 2.0.
