一、危害小麦吸浆虫俗称麦蛆、小红虫等,是小麦的毁灭性害虫,主要以幼虫侵入麦壳内吸食正在灌浆的麦粒,造成小麦秕粒而减产。一般发生年份常减产20—30%,严重年份减产可达45—50%,个别地块可造成绝收。五十年代我县局部地区(卫河上游沿岸)曾受到严重威胁,经大力防治后,六十年代基本控制了危害。但近几年虫口密度又有回升。孙杏村、康庄乡发生严重,有虫面积达 First, endanger wheat midge Insects commonly known as wheat maggot, red bloodworm, etc., is a devastating pest of wheat, mainly larvae invade the wheat hulls are grouting grains, resulting in reduced yield of wheat grains. Normally occur in 20-30% of the annual output reduction, cut 45- 50% in severe years, individual land can cause absolute failure. In the 1950s, some areas in our county (along the upper reaches of the Wei River) were seriously threatened. After vigorous prevention and control, the sixties basically brought harm. However, insect population density has picked up in recent years. Sun Xingcun, Kang Zhuang serious, insect area of ​​up to