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Arceuthobium cyanocarpum in Oregon. Donald M. Knutson, Research Plant Pathologist, Forestry Sciences Laboratory, Pacific Northwest Forest and Range Experiment Station, USDA Forest Service, Corvallis, OR 97331. Robert O. Tinnin, Professor, Environmental Sciences and Resources-Biology, Portland State University, Portland, OR 97207. Plant Dis. 65:445. . 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-65-445.

The presence of Arceuthobium cyanocarpum in Oregon has been confirmed. It was found near Sisters, OR, on Pinus albicaulis and Tsuga mertensiana. This is the first report of A. cyanocarpum on T. mertensiana.