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Filtering by: Subject Pear -- Diseases and pests -- Oregon Remove constraint Subject: Pear -- Diseases and pests -- Oregon Degree Level Doctoral Remove constraint Degree Level: Doctoral Subject Alder -- Diseases and pests -- Oregon, Western Remove constraint Subject: Alder -- Diseases and pests -- Oregon, Western

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  • Phytophthora species and riparian alder tree damage in western Oregon

    Creator:
    Sims, Laura L.
    Abstract:
    The genus Phytophthora contains some of the most destructive pathogens of forest trees, including the most destructive pathogen of alder in recent times, Phytophthora alni. Alder trees were reported to be suffering from canopy dieback in riparian ecosystems in western Oregon, which prompted a survey of alder health and monitoring...
    Resource Type:
    Dissertation
    Full Text:
    another Phytophthora species could be causing disease in western Oregon, and that this disease would go