杞柳瘿蚊发生频繁，造成很大的损失。
Willow twig gall midge( Rhabdophaga salics Schrank) occurred frequently and caused heavy loss.
寄生天敌云杉瘿蚊长尾小蜂寄生率达6 .39%。
The parasitic rate of parasitic natural enemy Torymus gansuensis is 6 39.
在实验室条件下对刺槐叶瘿蚊的发育历期、发育起点温度和有效积温进行了研究。
The developmental threshold and effective accumulative temperature of Obolodiplosis robiniae (Haldemann) , an important insect pest of Robinia pseudoacacia, were studied in the laboratory.
利用瓢虫防治枸杞蚜虫、瘿蚊等害虫，提高枸杞果实品质、档次，为今后以虫防虫打下了良好基础。
Medlar use ladybug control aphids, gall midge and other pests, improve wolfberry fruit quality, grade, insect pest control in the future to lay a good foundation.
梨瘿蚊是为害梨树芽、叶的重要害虫。为此，对梨瘿蚊的生物学、生态学特性及防治对策等方面的研究进展进行了综述。
Dasyneura pyri was an important pest of pear. The paper reviews research progresses on the biology, ecology and control strategies of Dasyneura pyri.
梨瘿蚊是为害梨树芽、叶的重要害虫。为此，对梨瘿蚊的生物学、生态学特性及防治对策等方面的研究进展进行了综述。
Dasyneura pyri was an important pest of pear. The paper reviews research progresses on the biology, ecology and control strategies of Dasyneura pyri.
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