我省河西各垦区1988年来相继在武威、张掖、酒泉部分农场发现大麻叶(虫甲)对啤酒花产生危害,并以武威的黄羊河、勤锋农场发生尤为严重,并有蔓延之势。一、危害程度据我场1990年调查,全场1200亩啤酒花均遭受大麻叶(虫甲)不同程度的危害。酒花花体被害率一般田块达5％～20％,严重的地块被害率高达80％以上,轻者减产5％～10％,重者减产50％左右。二、形态特征成虫体深绿色,肉眼看呈黑色,体长1.8～2.6毫米。触角10节,深褐色,头胸及鞘翅背面刻点较 Hexi area reclamation area in 1988 in succession in Wuwei, Zhangye, Jiuquan some farms found cannabis leaf (insects) hops harm, and Wuwei Huangyang River, Qin Feng farms occurred particularly serious, and the trend of the spread. First, the degree of harm According to my field survey in 1990, the audience of 1200 acres of hops suffered cannabis (insects) varying degrees of harm. Hops body damage rates generally up to 5% to 20% of the plots, serious mass murder rate of 80% or more, the light reduction of 5% to 10%, the heavy reduction of about 50%. Second, morphological characteristics Adult dark green body, the naked eye is black, body length 1.8 ~ 2.6 mm. Tentacles 10 knots, dark brown, scalp and coleopod engraved on the back than the point