Distribution of Serological Strains of Gremmeniella abietina in Eastern North America. D. Skilling, Principal Plant Pathologist, USDA Forest Service, 1992 Folwell Avenue St. Paul, MN 55108. M. Kienzler, Microbiologist, and E. Haynes, Forestry Technician, USDA Forest Service, 1992 Folwell Avenue St. Paul, MN 55108. Plant Dis. 68:937-938. Accepted for publication 13 June 1984. 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, 1984. DOI: 10.1094/PD-68-937.

A total of 327 mycelial isolates of Gremmeniella abietina from northern North America were serologically typed to determine fungus strain. All but six were either the North American or European strain. Isolates from Michigan, Minnesota, and Wisconsin were all typed as North American strain. The European strain predominated in New York, Vermont, and Newfoundland isolates.