在综合防治松毛虫的斗争中,湖北省林业学校破除迷信,解放思想,试验采用先进的防治虫害新技术——应用保幼激素防治松毛虫,并取得了初步成效。保幼激素是一类昆虫内激素物质,是由昆虫脑附近的一对咽侧体所分泌的。保幼激素防治昆虫的作用机理主要归结为三个方面:第一、是阻止昆虫正常变态和导致异常变态;第二,是打破滞育,使其在不利环境条件下死亡;第三,是使昆虫不育和杀伤昆虫卵。湖北省林业学校 In the comprehensive fight against pine caterpillars, Hubei Forestry School to get rid of superstition, emancipate the mind, the experiment using advanced new technology for pest control - the application of juvenile hormone control pine caterpillars, and achieved initial success. Juvenile hormone is a class of insects hormones, is secreted by a pair of pharyngeal side near the insect brain. The mechanism of action of juvenile hormones to prevent and control insects is mainly attributed to three aspects: first, to prevent insect normal metamorphosis and lead to abnormal metamorphosis; second, to break diapause so that it will die under unfavorable environmental conditions; and thirdly, Insect infertility and killing insect eggs. Hubei Forestry School