Title: Species, mating types and pathogenicity of Phytophthora distributed in citrus orchards in Taiwan
Abstract: From July 1976 to May 1980 soils and diseased tissues of citrus were collected from 229 citrus orchards in all 15 counties on the island of Taiwan, and assayed for the presence of Phytophthora by baiting with discs of citrus leaves and plating on selective medium. Phytophthora species were isolated from 108 citrus orchards in 14 of 15 counties. Both A 1 and A 2 mating types of P. parasitica and P. palmivora were isolated only from central and southern counties most of which are in the tropical region. P. citricola and A 1 but not A 2 mating type of P. citrophthora and P. cinnamomi were isolated mainly from the subtropical region of the central and northern counties. All of them were pathogenic to sweet orange. P. heveae, P. insolita and an undescribed species of Phytophthora infrequently isolated from soils were non-pathogenic to sweet orange.
Publication Year: 1984
Publication Date: 1984-06-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 12
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