Identification of Colletotrichum lindemuthianum race 73 in Manitoba, Canada

Colletotrichum lindemuthianum was isolated from six dry bean samples grown in Manitoba in the 2001 season. The isolates were inoculated onto a set of 12 differential accessions for race identification. All isolates produced sporulating lesions only on differentials 'Michelite' (navy bean)...

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Bibliographic Details
Published in:Canadian journal of plant pathology 2003-03, Vol.25 (1), p.104-107
Main Authors: del Río, L. E., Lamppa, R. S., Gross, P. L., Brolley, B., Prischmann, J.
Format: Article
Language:English
Subjects:
anthracnose
Colletotrichum lindemuthianum
Manitoba
Phaseolus vulgaris
race 73
seed transmission
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Summary:Colletotrichum lindemuthianum was isolated from six dry bean samples grown in Manitoba in the 2001 season. The isolates were inoculated onto a set of 12 differential accessions for race identification. All isolates produced sporulating lesions only on differentials 'Michelite' (navy bean) and 'Cornell 49242' and 'Mexico 222' (black beans), a reaction profile typical of race 73. Navy beans 'Agri-1' and 'Envoy' were resistant to race 73 while pinto beans 'Buster', 'AC Pintoba', 'Apache', and 'Kodiak' were susceptible. Until resistant cultivars are available, a zero tolerance for anthracnose in commercial seed lots and tighter control of seed production fields are suggested as mechanisms to reduce the negative impact of this pathogen in the region.
ISSN:0706-0661
1715-2992
DOI:10.1080/07060660309507055