A study of strawberry anthracnose. 1) Perfect stage of the pathogen which originated from the northern area of Kyushu Island and its benomyl resistance.:1) Perfect stage of the pathogen which originated from the northern area of Kyushu Island and its beno

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Strawberry anthracnose has spread to major strawberry production areas with the change of varieties. The perfect stage of the pathogen was found in some areas of Japan, but was never found in Kyushu Island. We examined whether our isolates could form the perfect stage on nine agar media with or without illumination. Fifteen out of twenty-four isolates originating from the northern area of Kyushu formed perithecia and ascospores on oat meal agar (OMA). Formation of the perfect stage was superior on OMA than other media. The morphology and size of the perfect stage was similar to that of Glomerella cingulata. Benomyl resistance of the pathogen was also tested. Twelve isolates having 2, 000-4, 000 ppm MIC values were considered resistant strains and others having 2.5-20 ppm MIC values were considered susceptible strains.
九州病害虫研究会の論文