Journal of Forest and Environmental Science

Institute of Forest Science, kangwon National University (강원대학교 산림과학연구소)
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First Report of Leaf Spot Disease Caused by Cladosporium pseudocladosporioides on Morus alba in South Korea

  • Heo, Jung-In (Division of Forest Entomology and Pathology, National Institute of Forest Science) ;
  • Oh, Ji Yeon (Division of Forest Entomology and Pathology, National Institute of Forest Science) ;
  • Lee, Dong-Hyeon (Division of Forest Entomology and Pathology, National Institute of Forest Science)
  • Received : 2021.04.30
  • Accepted : 2021.10.11
  • Published : 2021.12.31
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Abstract

Morus alba, known as White Mulberry, is one of the most common species of mulberry found in South Korea, along with M. australis, known as Korean Mulberry. During a routine survey to investigate fungal diseases on deciduous broad-leaved trees in 2020, leaf spots were consistently observed on the White Mulberry in Sejong-si (36°30'12.8"N 127°17'34.5"E) and Wonju-si (37°15'29.6"N 128°11'37.9"E), South Korea, with a disease incidence of approximately 70 to 80%. Symptoms included circular, tan or necrotic lesions surrounded by a dark margin on leaves, which, in some cases, the lesions coalesced to form relatively large necrotic regions. The pathogen was successfully isolated from M. alba, and was identified as Cladosporium pseudocladosporioides based on the phylogenetic analysis and morphology. To the best of our knowledge, this is the first report of leaf spot disease on M. alba caused by C. pseudocladosporioides in South Korea.

Keywords

Acknowledgement

The authors acknowledge the financial support from the National Institute of Forest Science, 'Development of management tools for insect pests and fungal pathogens occurring on forest tree crops, no. FP0802-2017-02'.

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