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Filtering by: Conference section Pest of Wine Grape & Small Fruit pests Remove constraint Conference section: Pest of Wine Grape & Small Fruit pests Decade 2000-2009 Remove constraint Decade: 2000-2009 Subject Grapes -- Diseases and pests -- Oregon Remove constraint Subject: Grapes -- Diseases and pests -- Oregon

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  • Epidemiology of grape powdery mildew, Uncinula necator, in the Willamette Valley

    Creator:
    Hall, Tyrone W.
    Abstract:
    An important disease of Vitis vinifera production in Oregon and all other commercial growing regions is powdery mildew of grape, caused by the obligate fungal pathogen Uncinula necator (Schwein.) Burril. Grape production can be characterized as a long-term investment in the establishment and maintenance of the vineyard. Establishment times have...
    Resource Type:
    Masters Thesis
    Full Text:
    associated with reduced wine quality (50,59). Infections of U necator on immature fruit have also been

  • Biological control of spider mites (Acari: Tetranychidae) on grape emphasizing regional aspects

    Creator:
    Prischmann, Deirdre A.
    Abstract:
    During summer of 1998 and 1999, 34 and 10 vineyard sites, respectively, were sampled to assess spider mite pests and associated biological control by phytoseiid mites. Vineyards studied spanned five major valleys in western Oregon where grape production occurs. Leaf samples were taken from site perimeters and centers. One leaf...
    Resource Type:
    Masters Thesis
    Full Text:
    grape emphasizing regional aspects AN ABSTRACT OF THE THESIS OF Deirdre A. Prischmann for the