The pathogens of white mildew disease of cultivated Auricularia auricula-judae in Northeast China
东北地区木耳“白毛菌病”的病原菌

The white mildew disease on Auricularia auricula-judae was epidemic in recent years in Northeast China. The pathogenic fungi formed a layer of white pull-mesh mycelium on the ventral side of the fruiting body of A. auricula-judae in hot summer. The fungi significantly reduce the yield as well as the quality of the fruiting bodies. In this study, two fungal strains were isolated from the infected fruiting bodies cultivated in Shangzhi of Heilongjiang Province. They were identified as Fusarium oxysporum and Fusarium chlamydosporum. Both of them are pathogenic to the fruiting body of A. auricula-judae.