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桃缩叶病系真菌性病害,青岛农科所鹿世晋认为桃缩叶病原菌是苹果白粉病在桃树上的变种。该病在低温高湿条件下易发病流行。1998年春天,我市持续长时间的降雨,日均温度12～13℃,引起桃园大面积发生桃缩叶病,全市桃果减产达60％,管理粗放的园片有绝产现象。根据桃农反映,我们对这次桃缩叶病的发生做了调查,并提出防治意见如下。
Peach lobular disease Department of fungal diseases, Qingdao Agricultural Institute Lu Shijin that Peach Ye leaf pathogen is a powdery mildew on the peach tree varieties. The disease in the low temperature and humidity conditions prone to epidemic. The spring of 1998, the city continued a long period of rainfall, the average daily temperature of 12 ~ 13 ℃, causing peach large areas of Taoyuan disease, the city cut peach yield of 60%, the extensive management of the park has a total yield. According to the peach farmers to reflect, we conducted a survey of the occurrence of peach leaf disease, and put forward the following prevention and control views.