野燕麦是一年生禾本科杂草,分布广、密度大、适应性强、繁殖率高、危害重,是一种世界性恶性杂草。在美国、加拿大、澳大利亚、英国、苏联均有大面积发生,每年由于野燕麦的危害给农业生产造成的损失是巨大的。在我国约有16个省区,六千多万亩农田遭受野燕麦危害,每年损失粮油二十几亿斤。西北地区野燕麦发生危害最为严重,发 Wild oats are annual grass weeds, widely distributed, large density, strong adaptability, high reproductive rate, endanger heavy, is a worldwide malignant weed. In the United States, Canada, Australia, the United Kingdom, the Soviet Union have occurred on a large scale, each year because of the damage caused by wild oats agricultural production losses are enormous. In some 16 provinces and autonomous regions in China, more than 60 million mu of farmland are endangered by wild oats, with an annual loss of over 2 billion kilograms of grain and oil. Wild oats in the northwest most damaging, fat