Search Constraints

Start Over
Filtering by: Creator Western Orchard Pest and Disease Management Conference Remove constraint Creator: Western Orchard Pest and Disease Management Conference Committee Member Parke, Jennifer Remove constraint Committee Member: Parke, Jennifer

Search Results

  • Enhancing pest mite biological control by Typhlodromus pyri (Acari: Phytoseiidae) in Pacific Northwest vineyards

    Creator:
    Gadino, Angela Noelle
    Abstract:
    The predatory mite Typhlodromus pyri (Acari: Phytoseiidae) is the predominant species in cool climate Pacific Northwest vineyards and a principal predator of pest mites including the grapevine rust mite Calepitrimerus vitis (Acari: Eriophyidae). In recent years vineyards have been experiencing C. vitis population outbreaks leading to increased economic damage from...
    Resource Type:
    Dissertation
    Full Text:
    . Basic vineyard management practices include vine pruning, canopy management, disease and pest control

  • Plant hormone-induced defense responses against Botrytis cinerea

    Creator:
    Akagi, Aya
    Abstract:
    Several plant hormones, including ethylene and jasmonates, are known to mediate responses against biotic and abiotic stress. The first and second objectives of this thesis were (i) to elucidate the role of ethylene in defense responses against Botrytis cinerea and specifically (ii) to determine the potential contribution of ethylene response...
    Resource Type:
    Dissertation
    Full Text:
    ............................................................................................... 30  Softening and disease progression ..................................................... 33

  • Organic soil amendements (sic) : impacts on snap bean common root rot and soil quality

    Creator:
    Cespedes Leon, Maria Cecilia
    Abstract:
    Common root rot is a major disease of commercially grown snap bean (Phaseolus vulgaris L.) on the irrigated sandy soils of central Wisconsin. The objective of this study was to determine the relationships between soil properties and suppressiveness to common root rot of snap bean (causal agent Aphanomyces euteiches) in...
    Resource Type:
    Masters Thesis
    Full Text:
    incidence. The disease was suppressed by both fresh and composted amendments, but compost was most

  • Development and use of molecular tools in Fragaria

    Creator:
    Njuguna, Wambui
    Abstract:
    This dissertation describes the application and development of molecular tools that have great potential for use in studying variation in strawberry germplasm. The first study evaluated 91 microsatellite (simple sequence repeat, SSR) markers for transferability in 22 Fragaria species and their utility in fingerprinting octoploid strawberries. Out of the transferable...
    Resource Type:
    Dissertation
    Full Text:
    to strawberry root disease and virus tolerance (Lawrence et al., 1990). Fragaria chiloensis is

  • Nutrient Profile and Nursery Feeding Damage of Halyomorpha halys (Hempitera: Pentatomidae)

    Creator:
    Skillman, Victoria P.
    Abstract:
    Halyomorpha halys Stål, brown marmorated stink bug or BMSB, is now present in 43 US states. A native of eastern Asia, this pest can feed on ~200 different plant species damaging bark, leaves, buds, stems, and fruits. Many of these plant species include wild plants, ornamentals, and agricultural crops. BMSB...
    Resource Type:
    Masters Thesis
    Full Text:
    pest is nutrient-limited and potentially more susceptible to management. In Chapter 2, lipid

  • Breeding and genetics of lilacs and hardy hibiscus

    Creator:
    Lattier, Jason D.
    Abstract:
    Lilacs are a group of ornamental trees and shrubs in the Oleaceae family consisting of 22 to 30 species. There are six series within genus Syringa: Pubescentes, Villosae, Ligustrae, Ligustrina, Pinnatifoliae, and Syringa. Fertility and cross-compatibility among cultivars, species, and series have yet to be formally investigated. Over three years,...
    Resource Type:
    Dissertation
    Full Text:
    (reblooming) and disease resistance are two important traits in the dwarf lilacs (Syringa pubescens

  • Effects of Pesticide Exposure on Honey Bee Health : Impacts of Pesticide Interactions and Exposure Through Multiple Routes

    Creator:
    Parreira, Stephanie
    Abstract:
    Honey bees (Apis mellifera) are responsible for approximately $17 billion in crop production per year in the United States, and are arguably the most important pollinators in the nation. The future of crop pollination and production is threatened by widespread national honey bee colony losses, which have averaged approximately 30%...
    Resource Type:
    Masters Thesis
    Full Text:
    be a critical form of disease resistance in honey bee colonies, and adverse impacts of pesticide