苹果树腐烂病是北方苹果产区的主要病害,也是亚洲东北部地区的特有病害。据历史记载,我国从一九一六年开始发生本病以来,至目前为止,曾出现过四次大流行,造成严重损失。这四次大流行又与冻害和果园管理粗放、树势衰弱有密切关系。一九七○年以来在“四人帮”的干扰破坏下,果园管理一度放松,本病又有加重的趋势。经过所内外试验和总结群众经验,对本病的发生和侵染规律有了进一步的认识。 Apple tree rot disease is the main disease in the northern apple-growing areas, but also the endemic diseases in northeastern Asia. According to historical records, up to now, there have been four pandemic occurred in our country since the onset of this disease in 1916, causing serious losses. These four pandemics are closely related to frost damage and the extensive management of orchards and the weakening of trees. Under the disturbances and disruptions of the “gang of four” since 1970, the orchard management was once relaxed and the disease tended to aggravate again. After internal and external experiments and summary of the masses experience, the occurrence of this disease and infection have been further understanding.