梨小食心虫Grapholitha molesta(Bugck)简称梨小,国外叫东方果蛾,是一种世界性的果树害虫。主要为害苹果、梨、桃、李、杏等。在四川为害较严重。长期依赖化学农药防治,以致害虫产生抗药性且污染环境、杀伤益虫等。近年来,国内外科技工作者正努力探索更安全、经济有效的防治新途径。随着微量化学分析仪器的迅速发 Grapholitha molesta (Bugck) Referred to as pear small, called Oriental fruit moths abroad, is a worldwide fruit pest. The main damage to apples, pears, peaches, plums, apricots and so on. More serious damage in Sichuan. Long-term dependence on chemical pesticide control, resulting in resistance to pests and pollute the environment, kill beneficial insects and so on. In recent years, domestic and foreign scientists and technicians are working hard to explore safer, more cost-effective new ways of prevention and treatment. With the rapid development of microchemical analysis equipment