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苹果树腐烂病是造成毁园的最重要的病害,被果农称为苹果树的癌症。病原菌在病树皮或病疤木质部内越冬,病斑在早春产生分生孢子,孢子随
Apple tree rot disease is the most important disease that caused the destruction of the park and was called cancer of the apple tree by fruit growers. Pathogens overwinter in diseased bark or diseased xylem, which produces conidia in early spring, with spores