This study identifies leaf spot disease from Cladosporium allicinum in barley, suggesting new disease management pathways.
Barley (Hordeum vulgare) is one of the major winter cereal crops in Korea. In April 2021, barley plants showing leaf spot symptoms were observed in Boseong-gun and Jangheung-gun, Jeollanam-do, Korea. Morphological characteristics and multi-locus sequence analyses identified Cladosporium allicinum as the causal pathogen. Pathogenicity assays reproduced the symptoms on barley leaves, and the pathogen was successfully reisolated, fulfilling Koch’s postulates. This study constitutes the first report of C. allicinum causing leaf spot on barley in Korea and expands the known host range of this species, providing a foundation for future disease management strategies.
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An et al. (2025) studied this question.
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