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Filtering by: Subject Sweet cherry -- Diseases and pests Remove constraint Subject: Sweet cherry -- Diseases and pests Decade 2000-2009 Remove constraint Decade: 2000-2009 Degree Level Doctoral Remove constraint Degree Level: Doctoral

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  • 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:
    1.3 Disease cycle of sweet cherry powdery mildew………...8 1.4 Disease forecasting and control

  • Sweet corn decline syndrome in Oregon's Willamette Valley

    Creator:
    Hoinacki, Elisabeth V.
    Abstract:
    For the past several years vegetable growers in Oregon's Willamette Valley have experienced reduced yields in their sweet corn plantings. We conducted studies to 1) describe the symptomology and etiology of the disease, 2) test a root rot rating system we developed to evaluate factors in the disease syndrome, and...
    Resource Type:
    Dissertation
    Full Text:
    severity of root rot of sweet corn, indicating that the primary cause of the disease is soilborne and

  • Responses and relationships among Fusarium species, sweet corn, and western spotted cucumber beetles

    Creator:
    Miller, Nathan L. (Nathan Louis)
    Abstract:
    Sweet corn (Zea mays L.) yields in the Willamette Valley of Oregon have been declining since the early 1990’s. Studies were done to determine if there is a relationship between ear weight and several disease parameters including necrotic crowns or stalk nodes, nodal root rot, radicle root rot, and sub-crown...
    Resource Type:
    Dissertation
    Full Text:
    conductance, and disease in crown and node tissues of sweet corn grown in the Willamette Valley