采用生物技术防治虫害,无污染,无残毒,效果好,成本低。现介绍如下四法:以虫治虫法利用赤眼蜂产的卵寄生在200多种昆虫卵上的特性,用人工方法大量繁殖赤眼蜂,在害虫产卵期及时放蜂,可防治水稻、玉米、果树、蔬菜等农作物多种主要害虫。一只蜂50天可繁殖7代达10万多只,蜂多虫少。 The use of biotechnology to control pests, no pollution, no residue, good effect, low cost. The following four methods are introduced: insect pest control method using the eggs of red eye bees parasitic on the characteristics of more than 200 kinds of insect eggs, the artificial propagation of Trichogramma large quantities of pests in the spawning period in time to prevent and control rice, Corn, fruit trees, vegetables and other crops a variety of major pests. A bee can breed for 50 days up to 7 generations up to more than 100,000, fewer bee bugs.