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Filtering by: Subject Brush -- Control -- Oregon Remove constraint Subject: Brush -- Control -- Oregon Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.) File Format application/pdf Remove constraint File Format: application/pdf

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  • Phenology and monitoring of the cabbage maggot, Delia radicum (L.), in brassica root crops

    Creator:
    Dreves, Amy J.
    Abstract:
    In Oregon’s northern Willamette Valley, cabbage maggot (CM), Delia radicum (L.) (Diptera: Anthomyiidae) often renders Brassica root crops unmarketable. Scheduled insecticides are the only current control. Studies were conducted to: 1) describe and characterize spring emergence of CM flies and their seasonal flight activity relative to degree-day (DD) accumulations; 2)...
    Resource Type:
    Dissertation
    Full Text:
    control. Studies were conducted to: 1) describe and characterize spring emergence of CM flies and their

  • 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:
    , Prunus avium, production areas. As production of sweet cherries has flourished in Oregon and

  • 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:
    control of nematodes in potato. Report to the Agriculture Research Foundation, Oregon Potato Commission