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生产无公害蔬菜时,积极应用防虫网阻隔防虫,不失为一种简便高效的办法。用防虫网防虫是一种物理防治方法,就是通过构建人工隔离屏障,将害虫“拒之门外”。用防虫网覆盖后在夏季栽培叶菜类蔬菜,完全可以实现在其生育期内不喷施杀虫剂;用防虫网覆盖后栽培辣椒、番茄、南瓜等蔬菜,可有效地防止害虫向其传播病毒。防虫网阻隔防虫技术在以色列、日本、美国等经济发达国家和地区被广泛应用。在以色列,几乎所有园艺设施的门窗、通风口均设置防虫网。在我
Production of pollution-free vegetables, the active application of insect-proof mesh barrier against insects, after all, a simple and efficient way. Insect control pest control is a physical control method, that is, through the construction of artificial isolation barrier, the pest “shut out ”. With the insect net cover after the summer cultivation of leafy vegetables, can be achieved in its growth period without spraying pesticides; covered with insect net after planting pepper, tomato, pumpkin and other vegetables, which can effectively prevent the spread of pests to virus. Insect-resistant barrier Insect-proof technology in Israel, Japan, the United States and other economically developed countries and regions are widely used. In Israel, almost all gardening facilities, doors and windows, vents are equipped with insect net. at me