桃树腐烂病又称桃树干枯病、桃树胴枯病,在各桃产区均有发生,桃树被害后能引起枝条枯死,在大枝和树干形成溃疡病斑,若不及时治疗,会很快造成整株死亡。发病原因:引发桃树腐烂病的病原为子囊菌亚门真菌核果黑腐皮壳菌,无性阶段为半知菌亚门壳囊孢菌(图1)。子囊壳扁球形或球形,子囊纺锤形,其子座上部由细密的浅橄榄色菌丝组成,下部由菌丝组织和寄主组织混合组成,黑色基部由褐色组织包围。子座中有1~6个分生孢子器,每个孢子器1~3室,但有1个共同孔口。无色、单胞的分生孢子呈香蕉形。核果黑腐皮壳菌以菌丝体、分生孢子座在枝干病组织中越冬,也可在支架、支棍树 Peach tree rot, also known as peach tree blight, peach blight, occur in all the peach producing areas, peach trees can cause death after the death of the branches and trunk formation of ulcer lesions, if not treated, will The whole plant soon died. The cause of the disease: The pathogen causing peach rot disease is Ascomycota subfamily fungus drupe staphylococcus aureus, asexual stage of condyloma acuminatum (Figure 1). Oocysts shell flat spherical or spherical, ascus spindle-shaped, the upper part of its sub-seat by the fine light olive mycelium composition, the lower part of the mycelium and host tissue mixture, the black base surrounded by brown tissue. There are 1 to 6 conidia in the sub-base, each spore 1 to 3 rooms, but there is a common orifice. Colorless, single cell conidia banana-shaped. Drupe stinkbug to mycelium, conidia in the branches of the disease in winter, but also in the scaffolding, sticks