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  1. By: Hildebrand, E. M. - United States. Plant Disease Survey.
    Publication info: Beltsville, Md, Plant Disease Survey, Division of Mycology and Disease Survey, Bureau of Plant Industry, Soils, and Agricultural Engineering, Agricultural Research Administration, United States Department of Agriculture, 1953
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  1. By: Hildebrand, E. M. - Steinbauer, E.M. - Drechsler, Charles - Tatman, E. C.
    Type: Article
    In: The Plant Disease Reporter
    Volume: 42
    Issue: 1
    Date: 1958
    Page Range: 112-121 1 Figure
  2. By: Hildebrand, E. M. - Drechsler, Charles
    Type: Article
    In: The Plant Disease Reporter
    Volume: 47
    Issue: 6
    Date: 1963
    Page Range: 562-563 3 Figures