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Filtering by: Creator Bruck, Denny Remove constraint Creator: Bruck, Denny Resource Type Dissertation Remove constraint Resource Type: Dissertation

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  • Marking, movement, and management of Drosophila suzukii in Oregon berry crops

    Creator:
    Klick, Jimmy
    Abstract:
    Drosophila suzukii Matsumura (Diptera: Drosophilidae) are small invasive flies that in the past five years (2009-2014) invaded berry and stone fruit production regions in Europe and the Americas. Evolutionary adaptations, biological traits, and anthropogenic factors have contributed to its current status as a global pest. Females oviposit eggs into ripe...
    Resource Type:
    Dissertation
    Full Text:
    co-advisor, Denny Bruck, whose eloquent thinking, ceaseless idioms, and serene personality inspired

  • Biotic barriers to colonizing new hosts by the cinnabar moth Tyria jacobaeae (L.)(Lepidoptera: Arctiidae)

    Creator:
    Karacetin, Evrim
    Abstract:
    The cinnabar moth (Tyria jacobaeae (L.), Lepidoptera: Arctiidae) is an icon in population ecology and biological control that has recently lost its shine based on evidence that (1) it is less effective than alternatives (such as the ragwort flea beetle Longitarsus jacobaeae (Waterhouse) (Coleoptera: Chrysomelidae) for controlling ragwort Senecio jacobaea...
    Resource Type:
    Dissertation
    Full Text:
    about the larvae, not about my work!). I got contacted Denny Bruck, and he identified the disease that

  • 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:
    am particularly grateful to Professors Denny Bruck, Paul Jepson, Tim Righetti, and Marcos Kogan for

  • A microscopic and phenological study of pollen development and bloom in selected cultivars of hazelnut (Corylus avellana)

    Creator:
    Tiyayon, Chantalak
    Abstract:
    Pollen development is an important process in male flower development, the timing of which may be correlated with time of pollen shed in hazelnut (Corylus avellana L.). Early to very late blooming cultivars were identified and the relationship of microsporogenesis and microgametogenesis, and time of pollen shed were studied in...
    Resource Type:
    Dissertation
    Full Text:
    graduate council representatives. Thank you Dr. Denny Bruck at USDA for growth chambers in phenology