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Typhula-like Snow Mold on Wheat in Oklahoma. Kenneth E. Conway, Associate Professor, Department of Plant Pathology, Oklahoma State University, Stillwater 74078. Ervin Williams, Jr., Associate Professor, Department of Plant Pathology, Oklahoma State University, Stillwater 74078. Plant Dis. 70:169-170. Accepted for publication 28 August 1985. Copyright 1986 The American Phytopathological Society. DOI: 10.1094/PD-70-169.

Snow mold of wheat caused by a sclerotia-forming basdiomyceteous fungus similar to Typhula spp. occurred during the winter of 19781979 as a result of a prolonged covering of snow in a field near Guthrie, OK. Sclerotia of this fungus occurred on 9095% of cultivar Osage wheat plants in one 4-ha north-sloping field. Sclerotia were also present in an adjoining 16-ha field planted with cultivar Centurk wheat. Infestation was limited to these two fields. Differences in cultural characteristics and morphology were found between the Oklahoma isolate and isolates of Typhula incarnata, T. idahoensis, and T. ishikariensis. However, similarities did exist to indicate that this fungus has affinities with Typhula spp.