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双斑长跗萤叶甲是新疆北疆棉区近几年来为害棉花的一类新害虫。通过2004～2007年对卵、幼虫、蛹取土样分离调查,对成虫定田块系统调查,基本明确了该虫主要以卵在棉田0～15cm土层越冬,幼虫主要取食棉田及其周围棉花、玉米、杂草等的根系,完成其生长发育。成虫为害棉花,6月底、7月上旬为发生为害高峰。双斑长附萤叶甲喜高温、干旱的习性与本区近年来棉花大面积集约化种植、节水灌溉的日益普及是该虫近年发生加重的重要原因。
Two-spot long-winged Diabrotica is a new insect pests that harm cotton in northern Xinjiang in recent years. Through the investigation of the soil samples taken from eggs, larvae and pupae from 2004 to 2007, the investigation on the fixed-field system of adults was conducted. It was basically clear that the insect was mainly overwintering in the 0 ~ 15cm soil layer of cotton field with larvae mainly feeding on and around the cotton field Cotton, corn, weeds and other roots, to complete its growth and development. Adults damage cotton, by the end of June, early July peak incidence. Bifidobacterium longan with hi-temperature, drought habits and the area in recent years, large-scale intensive cotton planting, water-saving irrigation is the increasing popularity of the pest in recent years an important reason for aggravating.