果树生产中最重要的病害就是腐烂病。果树腐烂病俗称烂皮病、臭皮病,几乎遍及北方所有果产区。目前,在我区17万亩苹果树中,仅呼市、赤峰和伊盟地区的发病面积就达7万亩之多,病株率为30～70％,每年因此病所致的经济损失约10～15％。因此,腐烂病已成为影响果树事业发展的一个突出问题。 The most important disease in the production of fruit trees is rot disease. Fruit tree rot disease commonly known as rotten skin disease, odor skin disease, covering almost all of the northern fruit producing areas. At present, of the 17 million mu of apple trees in our district, only the areas affected by Hohhot, Chifeng and Iran-EU regions reach as much as 70,000 mu and the diseased plant rate is 30-70%. The annual economic loss caused by the disease is therefore about 10 ~ 15%. Therefore, rot disease has become a prominent problem affecting the development of fruit trees.