苹果全爪螨是苹果树的主要害螨,在沿海地区发生尤其严重,对多种杀螨剂容易产生抗药性。近年来,杀螨剂新品种不断涌现,对控制害螨危害起到了很好作用。但是,由于不合理地施用新型杀螨剂,导致害螨很快对此产生抗性,故某些杀螨剂新品种用不了几年,就失去了原有的防治效果。另外,过去的一些杀螨剂在停用几年后,是否还能继续使用,或能否与新型杀螨剂混合使用;新杀螨剂混用对害螨的防治效果如何。这些都是 Apple mites is the main apple mite pest mite, occurs particularly in coastal areas, a variety of acaricides prone to resistance. In recent years, new varieties of acaricides continue to emerge, and play a good role in controlling pest damage. However, due to unreasonable application of new acaricides, resulting in the rapid generation of pests mites, so some new varieties of acaricides in a few years, it lost the original control effect. In addition, some of the past acaricides in the disabled after a few years, whether it can continue to use, or can be mixed with the new acaricide; new acaricides mixed with pest control effect. all these are