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Filtering by: Subject Apples -- Diseases and pests -- Control -- Oregon, Western Remove constraint Subject: Apples -- Diseases and pests -- Control -- Oregon, Western Committee Member Grunwald, Niklaus J. Remove constraint Committee Member: Grunwald, Niklaus J.

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  • The epidemiology of sudden oak death in Oregon forests

    Creator:
    Peterson, Ebba K.
    Abstract:
    The phytopathogen Phytophthora ramorum (Werres, DeCock & Man in't Veld), causal agent of Sudden Oak Death (SOD) of oaks (Quercus spp.) and tanoaks (Notholithocarpus densiflorus syn. Lithocarpus densiflorus), is established in coastal forests of the western United States. Since the discovery of SOD in the Douglas-fir / tanoak forests of...
    Resource Type:
    Dissertation
    Full Text:
    and infection occur more often in Oregon than in California. These data can explain the failure to