苹果腐烂病是天水地区危害苹果树的主要病害,重者造成果树死亡,轻者树势衰弱,寿命缩短,产量降低。六十年代中期,曾在本地区推广以刮治病部为主结合增施肥料等防治方法。但因本地区是一个发展苹果较晚的新果区,果园管理粗放;特别是对土壤管理,施肥等方面很不重视,加之对病部刮治不及时,杀菌剂不够理想等原因,未能取得满意的防治效果。自1974年开始,在原防治方法的基础上,进行了一些改进,通过七年 Apple rot disease is the main disease endangering the apple tree in Tianshui area, causing the death of the fruit tree in severe cases. The weak tree vigor is weak, the life span is shortened and the yield is reduced. In the mid-1960s, it was promoted in the region to cure and treat diseases and diseases combined with fertilizers and other prevention and control methods. However, due to the fact that this area is a new fruit growing area where apples are late, the management of the orchards is extensive. In particular, the management of the orchards is neglected, especially in the aspects of soil management and fertilization. In addition, Achieve satisfactory control effect. Since 1974, on the basis of the original prevention and treatment methods, some improvements have been made and seven years passed