1973—1977年,我们在万县市龙宝公社桐元一队,与贫下中农一起对白粉病进行了防治,逐步扭转了这个队连年病重减产的局面。白粉病的发病麦田,由每年的80%以上,下降至5%以下。综合防治的主要措施有三:选用抗病高产良种我区大面积种植的小麦大都是感病品种。1973年以来,我们对省内外上百个推广良种,进行了抗病性鉴定,发现毕麦5号、大理63、大山洞7号、蜀万741、蜀万753等5个品种高抗白粉病,在重病情 From 1973 to 1977, we started the control of powdery mildew together with poor middle peasants in the Tongyuan unit of Longbao commune in Wanxian City, and gradually reversed the situation that the team was seriously ill to lose weight in successive years. The incidence of powdery mildew in wheat fields, from more than 80% per year, dropped to below 5%. Integrated control of the three main measures: Selection of resistant high yielding varieties of wheat in large areas in our region are mostly susceptible varieties. Since 1973, we have evaluated the resistance of hundreds of popularized varieties in and out of the province and found that five varieties of Bifame 5, Dali 63, Dashan-dong 7, Shuwan 741, Shuwan 753, etc. are highly resistant to powdery mildew In serious condition