大葱锈病是葱类作物的常见病害之一。2005年9月下旬至10月上旬,不到20天的时间,翼城县出现了多年少见的连续降水天气,累计降水达150多毫米,导致大葱种植区锈病发生,部分生长盛期的大葱叶片枯黄,功能期缩短,产量和品质受到影响。种植过密、田间郁闭的葱田,锈病尤其严重。现将发 Onion rust is one of the common diseases of onion crops. In late September to early October 2005, in less than 20 days, continuous rare weather with many years of precipitation appeared in Yicheng County, accumulating a total of more than 150 millimeters of rainfall, causing the occurrence of rust on the green onion planting area, Yellowish, functional shortened, yield and quality affected. Planting too dense, field closed canadensis, rust is particularly serious. Now send