打瓜是布尔津县重要的经济作物之一,2013年种植面积达4万亩以上,由于种植面积的不断扩大,耕作制度不合理,轮作年限短等因素,使我县打瓜白粉病发病率普遍较高,其中发病地块轻者可减产20%~30%,严重时高达80%以上,特别是多雨年份发生更加严重。为减少农民损失笔者根据多年实践经验探索归纳出了打瓜白粉病病原、病症、发病规律、传播途径及防治方法供读者参考。 As one of the important cash crops in Burqin County, the planting of melon is more than 40,000 mu in 2013. Due to the continuous expansion of planting area, unreasonable cultivation system and short rotation period, the number of melon powdery mildew Generally higher, of which the light of the incidence of land can be reduced by 20% to 30%, up to 80% in severe cases, especially in the rainy years more serious. In order to reduce the loss of peasants, the author explores the pathogen, symptom, pathogenesis, route of transmission and prevention and cure methods of melon powdery mildew for the reader’s reference based on years of practical experience.