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Polymyxa betae in Nebraska. Willem G. Langenberg, Research Plant Pathologist, Agricultural Research Service, U.S. Department of Agriculture, University of Nebraska, Lincoln 68583. E. D. Kerr, Professor, Department of Plant Pathology, University of Nebraska, Lincoln 68583. Plant Dis. 66:862. Accepted for publication 18 April 1982. 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, 1982. DOI: 10.1094/PD-66-862.

Field surveys in September 1981 in western Nebraska sugar beet growing areas showed the presence of Polymyxa betae cystosori and zoospore-releasing sporangia in roots of sugar beets and of the common redroot pigweed, Amaranthus retroflexus. No virus could be recovered from the cultures of P. betae.