近年来,小麦白粉病在沿江地区发生程度逐年加重,尤其是2015年部分地区小麦白粉病发生严重,重病田块叶片普遍发黄、枯黄,甚至枯死,植株也大部分枯死,小麦几乎绝收,是近20年来小麦白粉病发生最为严重的一年。2016年小麦白粉病发病更早、也更为严重。今年小麦白粉病于3月28日始 In recent years, the incidence of wheat powdery mildew in the areas along the Yangtze River increased year by year, especially in some areas in 2015 serious occurrence of wheat powdery mildew, severe yellow leaves of the crop field, yellow, or even dead, most of the plants died, almost no yield of wheat, is Wheat powdery mildew in the past 20 years the most serious year. The incidence of wheat powdery mildew in 2016 is earlier and more serious. This year, wheat powdery mildew began on March 28