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Filtering by: Creator Soth, Brian M. Remove constraint Creator: Soth, Brian M. Advisor Croft, Brian A. Remove constraint Advisor: Croft, Brian A. Subject Spider mites -- Biological control -- Oregon Remove constraint Subject: Spider mites -- Biological control -- Oregon

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  • 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:
    Mites (Acari: Tetranychidae) on Grape Emphasizing Regional Aspects. Abstract approval: ,/l' Brian A

  • Prey-stage preference in phytoseiid mites

    Creator:
    Blackwood, J. Scott
    Abstract:
    Knowledge of how individual organisms behave in their environment can provide a greater understanding of population dynamics. In a predator-prey system, the choices made by predators when foraging for prey are important aspects of behavior. Particularly in the case of a stage-structured prey population, how the predator selects prey stages...
    Resource Type:
    Dissertation
    Full Text:
    preference in phytoseiid mites. Abstract approved: Brian A. Croft Knowledge of how individual organisms