Search Constraints

Start Over
Filtering by: Creator Thomas, Dennis Remove constraint Creator: Thomas, Dennis Degree Field Botany and Plant Pathology Remove constraint Degree Field: Botany and Plant Pathology File Format application/pdf Remove constraint File Format: application/pdf

Search Results

  • Conservation of Oenothera wolfii (Onagraceae) : introducing a threatened plant into two protected locations in Oregon

    Creator:
    Currin, Rebecca E.
    Abstract:
    The showy biennial to short-lived perennial Oenothera wolfii (Munz) Raven, Dietrich & Stubbe (Wolf’s evening primrose) occurs in only a small number of isolated populations on the southern Oregon and northern California coast. This rare species is currently listed as Threatened in Oregon, and is considered a Species of Concern...
    Resource Type:
    Masters Thesis
    Full Text:
    his understanding, patience and support throughout the last four and a half years. Dr. Thomas Kaye

  • Biology and management of Meloidogyne chitwoodi using oxamyl on potato in the western United States

    Creator:
    David, Nicholas L.
    Abstract:
    Field trials were conducted during 2001 to 2003 to investigate soil population dynamics of Meloidogyne chitwoodi, tuber symptom suppression using oxamyl, and post-harvest tuber symptom development on short-season potato varieties Russet Norkotah and Russet Nugget (San Luis Valley only). The experiments were located in the San Luis Valley in Colorado,...
    Resource Type:
    Dissertation
    Full Text:
    McKinley, Dennis Wilson, Dennis Miller, and Greg Harris for your tireless help with the experiments at

  • 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:
    programs to help time fungicide applications (Xu 1999;Berrie and Xu 2003). The Gubler-Thomas model for