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Control of Strawbreaker Foot Rot of Winter Wheat by Fungicides in Washington. G. W. Bruehl, Plant Pathologist, Department of Plant Pathology, Washington State University, Pullman, 99164-6430. R. Machtmes, Technical Aide, Department of Plant Pathology, Washington State University, Pullman, and R. J. Cook, Research Plant Pathologist, USDA-ARS, Pullman 99164-6430. Plant Dis. 66:1056-1058. Accepted for publication 22 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-66-1056.

Benomyl as a foliar spray protected winter wheat against strawbreaker foot rot over a wider range of application dates than did thiabendazole. Benomyl was also superior to thiophanate methyl in the single test conducted with the latter material. Fungicide applications in January–March were most effective in suppressing foot rot of the wheat cultivar Stephens, whereas March–April applications were most effective for the cultivar Daws. Economic rates of fungicides were ineffective when applied in November or May regardless of cultivar, and oil did not enhance the efficacy of the fungicides.