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作者针对苹果树腐烂病病疤重犯的原因,提出防治病疤重犯应该首先抓住及时刮除树皮浅层病变的环节,即夏、秋季刮除表面溃疡,果实采收后至入冬前结合刮老翘皮清除没烂到木质部小病块。明确病疤刮治之后一年涂二、二次消毒保护剂较目前生产上惯用的只徐一次的方法显著提高防治效果,尤其是一年涂二次煤焦沥青漆可基本控制住病疤重犯。并且指出不仅应对当年新刮的病疤,也应对近五年内刮治而又没重犯的病疤进行涂药,予以消毒保护。
The author of the apple tree rot disease scars recidivism causes proposed scab should be the first to grasp the timely removal of bark superficial lesions of the link, that is, summer and fall curettage surface ulcers, the fruit harvest before winter Scratch the old skins cleared rotten to xylem small lesions. A clear cure scar cure after a year of coating two or two disinfection protective agent than the current production of commonly used method of Xu once significantly improve the control effect, especially twice a year coated with two coal tar pitch paint can basically control the recurrence of scar severe . And pointed out that not only to deal with the scrape of the new year scab, but also cure the scab within the past five years without recidivism of the scar coating, disinfection protection.