农药对环境的污染和果品中农药残留量的增高,已经引起人们严重的关切。为了不用或少用有污染的化学药剂防治害虫,目前国内外科学工作者正在大力开展研究工作,其中用性外激素防治害虫就是这方面的研究成果之一。下面谈谈国内外性外激素防治梨小食心虫的一些情况。一、梨小食心虫的性外激素梨小食心虫,是一种世界性的果树害虫, The pollution of pesticides to the environment and the increase of pesticide residues in fruits have caused serious concern. In order to avoid or reduce the use of contaminated chemicals to control pests, scientists at home and abroad are vigorously carrying out research work. Among them, the use of sex pheromones to prevent and control pests is one of the research results in this respect. Here to talk about the domestic and foreign sex hormone control Pearson worm worms some of the conditions. First, the small pear worms sexual hormone Pear Moth, is a worldwide fruit pest,