黄粉蚜已成为酥梨套袋栽培中的一突出害虫 ,总结我场 2年套袋的经验和教训 ,为了防止套袋梨黄粉蚜为害 ,需采取综合措施 ,概括为“把五关灭蚜法”。1 .刮好树皮　黄粉蚜是以卵在果台、树皮、裂缝、老翘皮下或树干、主侧枝上的残附物内越冬。因此 ,要在梨树落叶后及发芽前 ,认真 Yellow powder aphid has become a prominent Pear pear bagging culture, summed up my field bagging experience and lessons for two years, in order to prevent bagged pear yellow aphid damage, the need to take comprehensive measures, summarized as “the five off aphid law ”. Scraping good bark yellow aphids egg in the fruit, bark, cracks, the old Alice under the skin or trunk, the main side of the residue in the winter. Therefore, to pear in the leaves and before germination, serious