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本文报道了以中国北方主要绿化树种──毛白杨雄株为主的重要害螨──白杨瘿螨（ＥｒｉｏｐｈｙｅｓｐｏｐｕｌｉｎｑｕｉｓＫｅｉｆｅｒ）的发生规律及其防治方法．该螨在山东省泰安地区ｌａ发生９代左右，以成螨在花芽内越冬，来年２月底开始产卵，卵期约１１ｄ，３月中旬至５月中、下旬是１～４代为害盛期，世代重叠。至５月中、下旬后少数瘿螨继续繁殖约５代，于１０月下旬后以成螨滞育越冬．该螨空间格局属聚集分布，取样时应适当扩大样点数。又经４月上旬在树干基部周围每隔５ｃｍ斜钻孔注久效磷或氧化乐果药效试验，防效分别为１００％和８０％。建议用久效磷或加大氧化乐果用药量来根除该螨的为害．
In this paper, we report the occurrence and control of Eriophyes populinquisKeifer, a major pest mite dominated by male green plants in northern China. The mites in Tai’an, Shandong Province, la occurred about 9 generations to adult mites in the winter buds, the end of February next year to start laying eggs, oviposition about 11d, mid-March to mid-May, , Generations overlap. To mid-May, a small number of late scabies mite continue to breed about 5 generations, in late October to mite diapause winter. The spatial pattern of the mites are clustered distribution, sampling should be appropriate to expand the sample points. Also in early April around the base of the trunk every 5cm oblique hole injection of monocrotophos or omethoate efficacy tests, control effects were 100% and 80%. It is recommended to use monocrotophos or increase the dosage of omethoate to eradicate the damage of the mite.