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Occurrence and Characterization of the Epsilon Race of Bean Anthracnose in Ontario. J. C. Tu, Research Station, Agriculture Canada, Harrow, Ontario N0R 1G0. J. W. Sheppard, Seed Biology Laboratory, Agriculture Canada, Ottawa, Ontario K1A 0C5; and D. M. Laidlaw, Plant Health Division, Agriculture Canada, Ottawa, Ontario K1A 0C6. Plant Dis. 68:69-70. Accepted for publication 22 August 1983. Copyright 1984 The American Phytopathological Society. DOI: 10.1094/PD-68-69.

Several isolates of Colletotrichum lindemuthianum were obtained from diseased pods collected from a field of pedigreed field beans (Phaseolus vulgaris), cultivar Ex Rico 23, in 1982. Pure cultures of the isolates were inoculated to Ex Rico 23 bean plants to satisfy Koch’s postulates. Based on their pathogenicity to a series of differential hosts, these isolates were determined to be the epsilon race of the pathogen. This is the first report of this race in Canada.