Anthracnose of Alfalfa Observed in Minnesota. F. I. Frosheiser, Research Plant Pathologist, Agricultural Research Service, U.S. Department of Agriculture, and Department of Plant Pathology, University of Minnesota, St. Paul 55108. R. H. Morrison, Northrup King Company, Woodland, CA 95695; and R. E. Welty, Research Plant Pathologist, Agricultural Research Service, U.S. Department of Agriculture, Oxford, NC 27565, and Department of Plant Pathology, North Carolina Agricultural Research Service, Raleigh 27650. Plant Dis. 65:844-845. Accepted for publication 6 March 1981. This article is in the public domain and not copyrightable. It may be freely reprinted with customary crediting of the source. The American Phytopathological Society, 1981. DOI: 10.1094/PD-65-844.

Anthracnose of alfalfa was observed for the first time in Minnesota near Stanton in July 1978 and again near Rosemount in August 1979. Isolates obtained from plants growing at both locations were identified as race 1 of Colletotrichum trifolii.

Keyword(s): Medicago sativa.