Root Rot of Sugar Beets Caused by Pythium deliense. M. E. Stanghellini, Department of Plant Pathology, University of Arizona, Tucson 85721. P. Von Bretzel, M. W. Olsen, and W. C. Kronland, Department of Plant Pathology, University of Arizona, Tucson 85721. Plant Dis. 66:857-858. Accepted for publication 18 April 1982. Copyright 1982 American Phytopathological Society. DOI: 10.1094/PD-66-857.

A new root rot of sugar beets was observed in Arizona in 1981. The causal organism was identified as Pythium deliense.

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