The occurrence of previously unknown tar‐spot disease on Salix koriyanagi was observed during surveys for forest disease outbreaks in Korea. The fungus associated with tar‐spot disease was identified as Rhytisma filamentosum based on morphological characteristics of the fungus and molecular sequencing of the ITS and 28S rDNA regions of two samples. To our knowledge, this is the first report of R. filamentosum on S. koriyanagi from Korea, following its first discovery on Salix integra in Japan.

中文翻译：

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柳叶柳炭疽病初报

在韩国森林病害暴发调查期间观察到在柳柳上发生了以前未知的焦油斑病。根据真菌的形态特征和两个样品的 ITS 和 28S rDNA 区域的分子测序，将与焦油斑病相关的真菌确定为丝状缨草。据我们所知，这是继在日本首次发现 Salix integra 之后，对韩国 S. koriyanagi 的 R. filamentosum 的第一份报告。