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苹果白粉病是我区苹果树的主要病害,在林芝、米林等主要生产区发生普遍,危害极为严重,影响苹果生产。当前生产上对苹果白粉病的防治主要采用剪除病梢(但很不彻底)和冬春喷石硫合剂等方法,不能有效地控制其危害,而且还在扩展蔓延,为此,我们于1986年春在林芝县果园进行了化学防治苹果白粉病试验,取得了一定的效果,简报如下:
Apple powdery mildew is the main disease of apple tree in our district. It occurs in the major producing areas such as Nyingchi and Milen, and it is extremely harmful and affects apple production. The current production of apple powdery mildew prevention and treatment mainly used to cut off the disease tip (but not completely) and winter spray spray sulfur sulfur agent and other methods, can not effectively control the harm, but also to expand the spread, therefore, we in the spring of 1986 In Nyingchi County orchard chemical prevention and control apple powdery mildew test, and achieved some results, the briefing is as follows: