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近年来，在山东泰安发现梨果实软腐的新病害。从病部分离到一种细菌。根据个体形态、培养性状、生理生化反应，致病性状等方面的研究结果，确认致病菌为大黄颈腐欧文氏杆菌Ｅｒｗｉｎｉａｒｈａｐｏｎｔｉｃｉ（Ｍｉｌａｒｄ）Ｂｕｒｋｈｏｌｄｅｒ，非梨火疫病菌Ｅ．ａｍｙｌｏｖｏｒａ。大黄颈腐欧文氏杆菌造成梨果实腐烂属首次报导。
In recent years, found in Shandong Taian pear soft rot new diseases. From the disease part of a bacteria. The pathogen was identified as Erwiniarhapontici (Milard) Burkholder and Aspergillus fumigatus according to the results of individual morphology, culture traits, physiological and biochemical reactions and pathogenic traits. amylovora. Rhubarb neck rot Erwinia causing pear fruit decay is the first report.