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Browsing Department of Botany and Plant Pathology by Author "Mahaffee, Walter F."

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Browsing Department of Botany and Plant Pathology by Author "Mahaffee, Walter F."

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  • Gent, David H.; Nelson, Mark E.; Grove, Gary G.; Mahaffee, Walter F.; Turechek, William W.; Woods, Joanna L. (The American Phytopathological Society, 2012-09)
    Downy mildew (caused by Pseudoperonospora humuli) and powdery mildew (caused by Podosphaera macularis) are important diseases of hop in the Pacific Northwest United States, and cultural practices may affect the severity ...
  • Gent, David H.; Mahaffee, Walter F.; McRoberts, Neil; Pfender, William F. (Annual Reviews, 2013-05-13)
    Disease predictive systems are intended to be management aids. With a few exceptions, these systems typically do not have direct sustained use by growers. Rather, their impact is mostly pedagogic and indirect, improvi ...

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