小麦吸浆虫是小麦主要害虫，小麦受害后一般减产１０％～２０％，严重的年份可减产４０％～５０％。近年来，省内不少地方因吸浆虫危害造成不同程度的减产。吸浆虫在省内一年发生一代，以三龄幼虫在土中结茧越冬越夏。吸浆虫的发生与小麦的生长期相对应，当小麦抽穗时，成虫羽 Wheat midge is the main pest of wheat, the wheat yield generally reduced by 10% to 20%, serious years can be reduced by 40% to 50%. In recent years, many places in the province due to midge suction harm caused by different levels of reduction. Midge in the province one generation a year to the third instar larva in the soil cocoon winter over the summer. Midge occurs with the growth of wheat corresponding period, when heading wheat, adult feathers