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Filtering by: Subject Trees -- Diseases and pests -- United States Remove constraint Subject: Trees -- Diseases and pests -- United States Academic Affiliation Botany and Plant Pathology Remove constraint Academic Affiliation: Botany and Plant Pathology

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  • Castilleja and Pedicularis are confirmed as telial hosts for white pine blister rust in whitebark pine ecosystems of Oregon and Washington

    Creator:
    Mulvey, Robin L.
    Abstract:
    The primary objective of this research was to determine if native species within the genera Castilleja and Pedicularis are naturally infected by white pine blister rust (Cronartium ribicola) in whitebark pine ecosystems of the Oregon and Washington Cascade Range. Secondary objectives were to monitor the phenology of aecial and telial...
    Resource Type:
    Masters Thesis
    Full Text:
    inoculation study plots and aeciospore source trees………………………………………………… 30 2.5 C. ribicola infection of

  • Biology of sweet cherry powdery mildew

    Creator:
    Calabro, Jill M.
    Abstract:
    The Pacific Northwest has become one of the nation’s premier sweet cherry, Prunus avium, production areas. As production of sweet cherries has flourished in Oregon and Washington, so has powdery mildew, caused by the fungus Podosphaera clandestina, which infects both foliage and fruit causing severe economic damage to growers. Sweet...
    Resource Type:
    Dissertation
    Full Text:
    disease evaluations indicated that the training system, rootstock, and cherry cultivar influence the