章丘大葱以其棵大、脆甜而深受人们的喜爱。近年来,种植面积不断扩大,2001年种植6000hm2,2002年扩大到1万hm2,总产50万t,年产值约5亿元。自1996年以来,章丘大葱甜菜夜蛾发生严重,一般被害株率为30%～50%,严重田块达100%,受其为害,轻者减产2～3成,重者毁种绝收。为控制其为害,同 Zhangqiu green onions with its large, crisp and loved by the people. In recent years, the planting area has been continuously expanded. In 2001, the planting area was 6000hm2. In 2002, it was expanded to 10,000hm2 with a total output of 500,000 tons. The annual output value is about 500 million yuan. Since 1996, Zhangqiu Onion beet armyworm serious, the general victimization rate of 30% to 50%, 100% of the serious field block, subject to damage, the light reduction of 2 to 3 percent, in severe cases of species destruction. In order to control its harm, with