果树腐烂病俗称烂皮病,是一种毁灭性的病害。北方苹果产区腐烂病发病严重,树体病疤累累,枝干残缺不全,常造成死树和毁园,近年有加重的趋势。果树腐烂病由子囊菌亚门黑腐皮壳属真菌侵染致病。病菌可形成球形的子囊壳和分生孢子器,产生大量的香蕉形的子囊孢子及分生孢子。病菌主要 It is a devastating disease of fruit tree rot disease, commonly known as rot disease. In the northern part of apple producing area, the incidence of rot disease is serious, the tree body scar is scarce, and the branches are incomplete, often resulting in dead trees and destroyed the park, which tend to aggravate in recent years. Fruit tree rot disease by the Ascomycota subphylum black sclerotinia fungi infection pathogenic. Bacteria can form spherical capsular shell and conidia, resulting in a large number of banana-shaped ascospores and conidia. The main bacteria