防虫网是一种新型的覆盖材料,防虫网覆盖栽培是近几年来大力推广的蔬菜高产栽培技术之一。几乎全年各季节均有应用,效益良好。目前主要用于设施蔬菜生产,对温室和大棚通风口、门口进行封闭覆盖,对露地蔬菜进行搭架全覆盖的网棚生产。一、防虫网的功能1、防虫夏秋蔬菜虫害十分猖獗,特别是菜青虫、白粉虱蚜虫、蔬菜生产防不胜防。既花费了大量农药,又污染环境,污染蔬菜,对人身体健康直接构成威胁。采用防虫网后,由于网眼小, Insect-repellent net is a new type of covering material, insect-resistant net covering cultivation is vigorously promoted in recent years, one of the high-yielding cultivation techniques of vegetables. Almost all seasons are applied, good results. Currently mainly used for the production of vegetable facilities, greenhouse and greenhouse vents, the door closed for coverage of the open-air vegetables scaffolding full coverage of the shed production. First, the function of insect net 1, insect pest Summer and autumn vegetables are rampant, especially Pieris rapae, whitefly aphids, prevent the production of vegetables. Not only has it spent a lot of pesticides, but also pollute the environment, pollution of vegetables, a direct threat to human health. After using insect net, due to small mesh,