防虫网,俗称寒冷纱,是利用聚乙烯为原料经拉丝织造而成的一种形似窗纱的新型覆盖材料,它具有耐拉强度大,抗紫外线,抗热,防腐蚀,不易老化等特点,适宜在蔬菜生产上应用,尤其在防虫害方面有显著功效。1　应用效果1.1　防虫　　夏菜生长季节,也是菜青虫、小菜蛾、斜纹夜蛾、甜菜夜 Insect net, commonly known as cold yarn, is the use of polyethylene as a raw material by drawing and weaving a new screen-like cover material, which has a large tensile strength, anti-UV, heat, corrosion, aging and other characteristics, suitable Application in vegetable production, especially in pest control has a significant effect. 1 Application Effect 1.1 summer pest control insects growing season, but also cabbage caterpillar, diamondback moth, Spodoptera, beet nocturnal