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近几年来,随着小麦栽培条件的改变,小麦白粉病的危害在本地有逐年加重的趋势,尤其是生长较好的麦田,往往受害很重。根据调查,病菌可在麦田过冬,于来年春季再扩展蔓延。但在此之前的夏收后,病菌去向如何?感染秋播麦苗的病菌又来自何方?这些问题各地研究报道尚少。为探明病菌的越夏场所及病害的侵染循环,为今后预测和防治提供依据,我们于1981—1984年进行了研究。
In recent years, with the change of wheat cultivation conditions, the harm of wheat powdery mildew has a tendency to increase year by year, especially the wheat fields with better growth tend to suffer heavy losses. According to the survey, the bacteria can survive the winter in the wheat fields and spread in the spring of next year. However, before the summer harvest, how the germs go? Infected autumn sowing of the germs come from? These reports are still little research reports around. In order to find out the path of infection and the infection cycle of the disease in the summer, we provide the basis for the future prediction and prevention. We conducted the research in 1981-1984.