梨叶肿瘿螨属蛛形纲、蜱螨目、瘿螨科。历年,除个别管理粗放的梨园发生严重外,一般未大发生。但是近几年来,胶东半岛发生渐趋严重。究其原因,主要是由于大量应用广谱性杀虫剂,破坏了梨园生态系统的平衡,致使梨叶肿瘿螨天敌的数量严重减少,造成其猖獗发生。 梨叶肿瘿螨以成虫在芬鳞片中越冬。每年春季梨树展叶时,其成虫便从幼嫩叶 Pear leaf swollen Scabies is arachnids, Acarina, Scabies mites. In the past years, there was generally no major occurrence except for the serious management of some pear orchards. However, in recent years, the occurrence of Jiaodong Peninsula has become increasingly serious. The reason is mainly due to the extensive use of broad-spectrum insecticides, undermining the pear ecosystem balance, resulting in a sharp decline in the number of natural enemies of scab mites, causing its rampant. Pear leaf swollen scabies mite to adults in winter in the Fen scales. Each spring when the pear leaves, the adults will be from young leaves