0引言近几年,轮台县果树面积逐年上升,其中香梨面积也在不断增加,全县香梨面积1667.5万m2,其中腐烂病发病面积有593.63多万m2。今年本地的气候比较反常,再加上果农对腐烂病知识的缺乏,香梨树普遍发生腐烂病,部分果园病株率达到了40%～50%。为 0 Introduction In recent years, the area of ​​fruit trees in Luntai County has been increasing year by year with the area of ​​fragrant pear increasing continuously. The area of ​​fragrant pear in the whole county is 16,675,000 m2, of which 5,936,300 m2 is the area with the incidence of rot disease. This year, the local climate is rather anomalous. Coupled with the lack of knowledge about rot disease among fruit growers, rot pear trees generally occur. Some of the orchard plant strains have reached 40% to 50%. for