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Filtering by: Subject Wildlife pests -- Control -- Oregon Remove constraint Subject: Wildlife pests -- Control -- Oregon Advisor Berry, Ralph E. Remove constraint Advisor: Berry, Ralph E. Degree Name Master of Science (M.S.) Remove constraint Degree Name: Master of Science (M.S.)

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  • Sampling methods, biology and management of the mint flea beetle in central Oregon peppermint

    Creator:
    Morris, Mark A.
    Abstract:
    Sampling techniques were evaluated to quantify immature mint flea beetle (MFB), Longitrsus waterhousei Kutschera (Coleoptera: Chrysomelidae), on peppermint (Mentha piperita L.), in central Oregon. During the study period, 1985-1988, soil samples of 350 cm³ were effective for collecting immature MFB. Sifting soil samples through screens was effective for estimating post-feeding...
    Resource Type:
    Masters Thesis
    Full Text:
    the detection, biology and control of immature MFB in peppermint in central Oregon. The following

  • Ecology of the predatory mite, Pergamasus quisquiliarum Canestrini (Acari: Mesostigmata)

    Creator:
    Groth, Eric M.
    Abstract:
    Pergamasus quisquiliarum Canestini is a polyphagous predatory mite that has been shown to feed on the economically important arthropod, Scutigerella immaculata Newport (Symphyla: Scutigerellidae), Collembola, Diptera larvae, Enchytraeid worms, and miscellaneous other soil organisms. This study examined the feeding behavior of P. quisquiliarum, the effects of cover cropping and tillage...
    Resource Type:
    Masters Thesis
    Full Text:
    . quisquiliarum, while control (fallow) and white mustard plots had the lowest densities. The two non