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First Report of Passalora Leaf Spot of Quinoa Caused by Passalora dubia in the United States

    Affiliations
    Authors and Affiliations
    • A. L. Testen , Dept. of Plant Pathology, The Pennsylvania State University, University Park 16802
    • J. M. McKemy , USDA-APHIS-PPQ-National Identification Services, Beltsville, MD 20705
    • P. A. Backman , Dept. of Plant Pathology, The Pennsylvania State University, University Park 16802

      Supplemental Material

      Supplemental Material

      A, Typical foliar symptoms of Passalora leaf spot of quinoa (Chenopodium quinoa) caused by Passalora dubia. B, Conidia of Passalora dubia isolated from quinoa.