近年来,华北区域麦田大面积发生禾本科恶性杂草,以雀麦(俗称野麦子)、野燕麦、硬草等为主,难以防治。这种杂草从发现到形成危害,具有传播速度快、危害重、防效差等特点。据石家庄市植保站调查统计,该市范围内的“野麦子”品种以雀麦为主,其次为野燕麦、硬草,近年来呈加重扩展趋势。野麦子一般会造 In recent years, large areas of northern China wheat crop grazing vicious weeds, to the broccoli (commonly known as wild wheat), wild oats, hard grass, etc., difficult to control. This weed from the discovery to the formation of hazards, with the spread of fast, serious harm, poor control and other characteristics. Shijiazhuang Plant Protection Station survey, according to statistics, the city within the “wild wheat” varieties to dominate the main, followed by wild oats, hard grass, in recent years was to increase the expansion trend. Wild wheat will usually be made