小麦吸浆虫是小麦生产上一种毁灭性病害,受害麦田一般减产10—20％,重者减产40—50％。我市自1986年发生以来,经大力除治,吸浆虫发生和危害曾得到控制。但近几年由于品种、气候、药剂、除治方法等原因,小麦吸奖虫又有明显回升趋势,局部地块严重发生。据普查,1994年全市140个乡、783个村全部发生吸浆虫,面积达138.6万亩,损失小麦469.65公斤。因此,须下大力做好防治工作,控制小麦吸浆虫的危害。 一、发生特点 1.面积范围不断扩大。1986年我市最早在赵县发现小麦吸浆虫,面积仅为5.3万亩。1992年14个县(市)普遍发生,面积达91.3万 Wheat midge is a devastating disease in wheat production, the general wheat yield reduced by 10-20%, 40% -50% reduction in severe cases. Since the city took place in 1986, after vigorous rule of cure, the occurrence and harm of midge has been under control. However, in recent years due to breed, climate, medicine, in addition to governance methods and other reasons, there is a clear upward trend in wheat aspiration insects, local mass serious occurrence. According to the census, in mid-1994, all the inhabitants of 140 townships and 783 villages in the city inhaled ascaris, covering an area of ​​1.386 million mu and 469.65 kg of wheat loss. Therefore, we must vigorously do a good job prevention and control work, control the harm of wheat midge. First, the occurrence of characteristics 1. The area has been expanding. In 1986, the city found the earliest in the county Zhaozhong inhalation of insects, an area of ​​only 53,000 mu. In 1992, 14 counties (cities) were common, with an area of ​​913,000