• Title/Summary/Keyword: Tomato black leaf mold

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Black Leaf Mold of Tomato Caused by Pseudocercospora fuligena in Korea (Pseudocercospora fuligena에 의한 토마토 검은잎곰팡이병)

  • Lee, Mun-Haeng;Lee, Suk-Soo;Kim, Hong-Gi;Lee, Youn-Su;Lee, Ji-Hye;Yu, Seung-Hun
    • Research in Plant Disease
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    • v.18 no.3
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    • pp.255-258
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    • 2012
  • In September 2011, black leaf mold caused by Pseudocercospora fuligena occurred on tomato plants growing in protected cultivation conditions in Boryong and Buyeo, Chungnam Province, Korea. Symptoms of the disease initially appeared as foliar chlorotic spots on upper leaf surfaces, turned light brown and then black on lower leaf surfaces as the fungus sporulates profusely. The causal fungus was isolated from the diseased plants and identified as P. fuligena based on morphological characteristics. Pathogenicity of the fungus was proved by artificial inoculation in the green house. This is the first report of the occurrence of black leaf mold of tomato caused by P. fuligena in Korea.

Survey and Screening of Fungicide for the Control of Tomato Black Leaf Mold Pseudocercospora fuligena

  • Lee, Mun Haeng;Lee, Hee Keyung;Cho, Pyeng Hwa;Kim, Young Shik;Cho, Suk Keyung;Kim, Sung Eun;Chun, Hee;Kim, Hong Gi;Kim, Sang Woo;Lee, Youn Su
    • Research in Plant Disease
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    • v.21 no.2
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    • pp.94-98
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    • 2015
  • Tomato black leaf molds were collected from the six metropolitan cities, which were occurred mainly from the end of August until November. There was no significant difference on the fungal growth between potato dextrose agar and tomato-oatmeal agar media. The mycelial growth of the fungus was robust at a relatively high temperature, from 28 to $30^{\circ}C$. The suppression rates of hyphal growth ranged from 17-98% on the media supplemented with four different chemicals such as difenoconazole, fluquinconazole and prochloraz manganese complex, metconazole, and flutianil and there is no different suppression rates of the fungicides on the tested Pseudocercospora fuligena isolates.