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近几年来,小麦白粉病在我市山区、平原均呈明显发展趋势,为害逐年加重,已成为小麦的主要病害之一。由于目前种植的小麦品种大部分不抗白粉病,用于防治的药剂种类少,效果差。所以,筛选防治小麦白粉病效果好、残效长的新药剂已成为重要课题。我们于1978—1981年,对南开大学元素所和沈阳化工研究院提供的粉锈宁(Bay Meb 6447)进行了试验,取得了显著的防病保产效果。现将试验结果整理如下:
In recent years, wheat powdery mildew in mountainous areas and plains in our city have shown a clear trend of development, pests increased year by year, has become one of the major diseases of wheat. As most of the cultivated wheat varieties are not resistant to powdery mildew, the kinds of medicaments used for prevention and treatment are few and their effects are poor. Therefore, the screening of effective prevention and control of wheat powdery mildew, long residual effect of new agents has become an important issue. In 1978-1981, we experimented with the elemental Institute of Nankai University and the laboratory of Baymeb 6447 supplied by Shenyang Chemical Research Institute, and achieved remarkable results in disease prevention and protection. The test results are summarized as follows: