苹果树腐烂病是苹果树的一个致命病害,过去我县由于治疗方法不当,病情日益严重。得利寺公社小屯生产队有苹果结果树7000株,过去由于管理粗放,树势衰弱,腐烂病大发生,几乎棵棵有病,每棵上有病疤多块。一个冬季修剪期间就要锯掉大量30斤以上产量的大枝,致使大量减产,1973年的总产量由70余万斤下降到不足40万斤。从1974年开始采用划道涂治的方法防治腐烂 Apple tree rot disease is a deadly disease of apple trees, in the past because of improper treatment of my county, the disease is getting worse. There are 7000 apple-tree in the community of Xiaolun, the commune of Tak Lee Temple. In the past, due to the extensive management, the weakness of the trees and the decay of the disease occurred, almost every tree was sick with more than one scar on each tree. During the winter pruning period, a large number of large branches of more than 30 kilograms will be sawed, resulting in a large reduction in output. The total output in 1973 dropped from 70 kilograms to less than 400,000 kilograms. Since 1974, the method of scratching and coating has been used to prevent decay