梨小食心虫属鳞翅目、小卷叶蛾科 ,近几年来发生量较大 ,为害日趋严重 ,必须加强防治。现将梨小食心虫危害趋重的原因及综合防治技术简介如下。1　危害趋重的原因1 1　生态平衡破坏　大量高效广谱性杀虫剂的多年连续应用 ,使果园生态平衡遭到破坏 ,天敌数量减少 ,对梨小食心虫 Pear beetle genus Lepidoptera, small roller leaf moth family, occurred in recent years, larger, more serious damage, we must strengthen prevention and control. Pear borer is now endangering the dangers of the reasons and comprehensive prevention and control technology is as follows. 1 The causes of the aggravating tendencies 1 1 Ecological balance destroys many years of continuous application of a large number of highly efficient and broad-spectrum insecticides, which destroy the ecological balance of orchards and reduce the numbers of natural enemies.