• Title/Summary/Keyword: Pestalotia diospyri

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Leaf Blight of Sweet Persimmon Tree in the Field and Fruit Rot in the Storage Caused by Pestalotia diospyri (Pestalotia diospyri에 의한 생육중의 단감 잎마름병과 저장중 과일 부패병)

  • Kwon, Jin-Hyeuk;Ahn, Gwang-Hwan;Park, Chang-Seuk
    • The Korean Journal of Mycology
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    • v.32 no.2
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    • pp.130-133
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    • 2004
  • Leaf blight and fruit rot of sweet persimmon (cv. Fuyu) caused by Pestalotia diospyri were observed during the growing season and postharvest such as storage and transport, respectively. Typical symptoms on leaves developed with small brown spots and were later reddish brown colors. In the storage fruit, the white mycelial mats formed between fruit and calyx. The pathogenic fungus was isolated from infected fruits and cultured on potato dextrose agar (PDA). Colony color of the fungus was white at first on PDA. Conidia were ovoid or fusiform, 5 cells, middle 3 cells were olive, upper and lower 2 cells were colorless, and their size were $16{\sim}22\;{\times}\;6{\sim}8\;{\mu}m$. They had were $2{\sim}3$ appendage at basal cell and size $9{\sim}18\;{\mu}m$. Based on the cultural and mycological characteristics and pathogenicity test on host plants and fruits, the fungus was identified as Pestalotia diospyri Syd.&P. Syd. This is the first report on the leaf blight and fruit rot of sweet persimmon caused by Pestalotia diospyri in Korea.