土蝗是非迁移性蝗虫的统称,我国已知约有800种。在北方农区,频繁为害农作物的土蝗优势种,主要有大垫尖翅蝗、黄胫小车蝗、笨蝗、短星翅蝗、中华稻蝗、宽翅曲背蝗、日本黄脊蝗等。八十年代中期以来,受气候及农田生态环境的变化影响和化学农药的不合理使用等,致使北方农区土蝗的危害逐年加重。近几年北方7省、市的土蝗发生面积每年均在6000万亩以上。由于土蝗具有高密度、突发为害的习性,所以化学农药防治乃是消除危害的重要手段 Soil locusts are collectively referred to non-migratory locusts, about 800 known to our country. In the northern agricultural areas, the dominant species of soil locusts that are frequently harmed by crops are mainly large-winged tip-winged locusts, yellow-tailed locust locusts, stinkbug locusts, short star-winged locusts, Chinese locusts, broadleaf wintering locusts, . Since the mid-1980s, due to the changes of climate and the ecological environment of farmland and the unreasonable use of chemical pesticides, the harm of soil locusts in the northern agricultural areas has been increasing year by year. In recent years, seven areas in the northern seven provinces and municipalities have occurred in more than 60 million mu each year. Due to the high density of soil locust, sudden harmful habits, so chemical pesticide control is an important means to eliminate the harm