小麦白粉病是小麦生产上常见的一种病害。近年来,随着耕作栽培条件的改变,尤其是丰产地区,水肥充足,群体结构大,小麦白粉病有逐年加重危害的趋势,直接威胁着小麦的稳产高产。目前推广的小麦品种大都不同程度地感染白粉病,一旦条件适宜,便会给小麦生产带来巨大的危害。为了加速 Wheat powdery mildew is a common disease in wheat production. In recent years, with the change of farming and cultivation conditions, especially in high yielding areas, plenty of water and fertilizer, large population structure, and wheat powdery mildew have a tendency of aggravating year by year, which directly threatens the steady and high yield of wheat. At present, wheat varieties promoted are mostly infected with powdery mildew to varying degrees. Once the conditions are right, they will bring tremendous harm to wheat production. To speed up