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近年,对霜霉病的防治有很大进展,如抗病品种的育成和应用;生态防治技术和农业防治措施不断完善;杀菌剂霜疫灵、百菌清、甲霜灵及其复配剂的开发和应用等等,都在蔬菜生产上发挥了重要作用。但在一些地区发现霜霉病菌对甲霜灵产生了抗药性,前年6月包头农科所试验测得25%甲霜灵可湿性粉剂800倍液防治黄瓜霜霉病效果只有29.84%,生产上有不少地方连续使用甲霜
In recent years, great progress has been made in the prevention and control of downy mildew, such as the breeding and application of disease-resistant varieties, the continuous improvement of ecological control techniques and agricultural prevention and control measures, the bactericide frost-curing spirit, chlorothalonil, metalaxyl and its compounding agents Development and application, etc., have played an important role in vegetable production. However, in some areas, Downy mildew was found to be resistant to metalaxyl. In the trial of Baotou Agriculture Bureau in June last year, the effect of controlling 25% metalaxyl WP 800 times against cucumber downy mildew was only 29.84% A lot of places for a continuous use of a cream