Status of Pathogenic and Physiologic Races of Gremmeniella abietina. C. E. Dorworth, Great Lakes Forest Research Centre, Sault Ste. Marie, Ontario, Canada. Plant Dis. 65:927. . 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-65-927.