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杨树烂皮病的病原是ＶａｉｓａｓｏｒｄｉｄａＮｉｔ－，无性世代为Ｃｙｔｏｓｐｏｒａｃｈｒｙｓｏｓｐｅｒｍａ（Ｆｅｒｓ）ＦＲ。该病对迎春五号杨苗期危害严重，孢子是通过伤口侵入或在苗木长势衰弱时从皮层穿透侵入。该病春秋两季为发病高峰期，且以春季发病最重。在病害
The disease pathogen of poplar is Vaisasordida Nit-, and the clonal generation is Cytospora chrysosperma (Fers) FR. The disease on Yingchun fifth seedling stage serious harm, spores through the wound invade or seedling growth weakens from the cortex penetrating invasion. The disease is the peak of the onset of spring and autumn, and the heaviest incidence in spring. In the disease