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Filtering by: Creator Smyth, Jeffrey D. Remove constraint Creator: Smyth, Jeffrey D. Advisor Morrell, Jeffrey J. Remove constraint Advisor: Morrell, Jeffrey J.

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  • Characterization of Fungal Communities in Selected Wood Species by Field Exposure Tests

    Creator:
    Torres-Andrade, Paola A.
    Abstract:
    Fungi are the primary biological agents of wood deterioration and cause major economic losses of wood products globally. Wood in outdoor applications tends to remain wet for extended time periods, making it susceptible to fungal attack. Understanding the factors involved in fungal colonization of wood is important for developing improved...
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: ______________________________________________________ Jeffrey J. Morrell

  • Groundwater and stormwater treatment at western wood preserving facilities : an analysis of current treatment methods

    Creator:
    Ragan, Anita M.
    Abstract:
    The Pacific Northwest is blessed with an abundance of precipitation. This rainfall, however, can have important consequences for industries that must process the resulting stormwater for proper discharge. This is particularly true of wood treatment facilities. Past management practices at wood preserving facilities located in the Western United States create...
    Resource Type:
    Masters Thesis
    Full Text:
    Methods. Abstract approved: Christopher D. Knowles Jeffrey J

  • Management of powder-post beetles, Dinoderus minutus F. in freshly cut bamboo

    Creator:
    Garcia, Carlos Manalo
    Abstract:
    The goal of this project was to develop an integrated pest management strategy for the control of a powder-post beetle (Dinoderus minutus F.). This species causes serious damage in Philippine bamboo. Developmental threshold and thermal constants were examined and natural enemies and ftmgi associated with beetles were investigated. Finally, the...
    Resource Type:
    Dissertation
    Full Text:
    concentrations (1: 10 and 1:100) caused significant mortality to D. minutus and could regulate beetle

  • Biology of the carpenter ants Camponotus vicinus (Mayr) and Camponotus modoc (Wheeler) in western Oregon

    Creator:
    Mankowski, Mark E.
    Abstract:
    Pest control operators in Oregon were surveyed to examine the occurrence of carpenter ants and other wood destroying organisms in structures. Carpenter ants frequently occurred in the coast and Willamette valley regions of the state and were associated with wetter, mesic habitats. To examine the effects of substrate and moisture...
    Resource Type:
    Dissertation

  • Utilization of ground peanut husk as an alternative fiber material for particleboard

    Creator:
    Newton, Jacob A.
    Abstract:
    This research examined the potential for using peanut husk as a fiber alternative to wood in the production of melamine-formaldehyde (MF) particleboard. MF resin was used to produce panels with one, three, six, nine or 12 percent resin contents. Modulus of Rupture (MOR), Modulus of Elasticity (MOE), Internal Bond (IB)...
    Resource Type:
    Honors College Thesis
    Full Text:
    :_____________________________________________________ Jeffrey J. Morrell This research examined the potential for using peanut husk as a fiber

  • Modeling changes in flexural properties of softwood beams during fungal decomposition

    Creator:
    Mitsuhashi Gonzalez, June M.
    Abstract:
    Moisture intrusion in residential structures can lead to substantial fungal decay and this damage costs billions in repair/replacement costs. The extent of damage and the rate at which it occurs are primarily dependent on the wood moisture content and temperature in the structure. Determining the risk of decay for various...
    Resource Type:
    Dissertation
    Full Text:
    Jeffrey J. Morrell Moisture intrusion in residential structures can lead to substantial fungal

  • Controlling biodeterioration of western wood species with over- the-counter wood preservatives

    Creator:
    Newbill, Mark A.
    Abstract:
    Over-the-counter (OTC) wood preservatives can provide wood with both a moisture barrier and fungicidal protection against biodeterioration, yet there is little comparative data on the performance of these preservatives. In this study, the potential of various low-toxicity, OTC preservatives was evaluated on five western wood species, western red cedar (Thuja...
    Resource Type:
    Masters Thesis
    Full Text:
    Pacific yew (Taxus brevifolia Nutt.), western redcedar (Thu'a plicata Donn ex D. Donn), old growth

  • Fungal colonization of Douglas-fir sapwood

    Creator:
    Kang, Sung-Mo
    Abstract:
    The fungi that cause mold and stain of freshly sawn lumber result in millions of dollars in losses to the forest products industry. Stain and mold are typically prevented by either kiln drying or by application of a topical fungicide. While these treatments are effective, kiln drying is costly and...
    Resource Type:
    Masters Thesis
    Full Text:
    , 1998. Title: Fungal Colonization of Douglas-fir Sapwood. Abstract approved: Vl , , f'" ." , Jeffrey

  • Effects of best management practices on copper migration from Douglas-fir lumber treated with ACZA, CA or ACQ

    Creator:
    Ye, Min
    Abstract:
    Copper is the most common ingredient in waterborne preservatives and provides excellent activity against most fungi and insects. However, issues associated with copper migration from treated wood have created increasing concerns about potential risks to non-target organisms in surrounding environments, especially those in sensitive aquatic environments. Various Best Management Practices...
    Resource Type:
    Masters Thesis
    Full Text:
    : ______________________________________________________ Jeffrey J. Morrell Copper is the most common ingredient in waterborne preservatives and

  • Supercritical fluid impregnation with biocides of wood using temperature reduction

    Creator:
    Kang, Sung-Mo
    Abstract:
    Supercritical fluid (SCF) impregnation is a promising preservative treatment method, however, the development of SCF processes has been slowed by a limited understanding of the process. Developing a better understanding of the effects of various process parameters on treatment results would allow for a more rational development of SCF impregnation....
    Resource Type:
    Dissertation
    Full Text:
    with Biocides of Wood Using Temperature Reduction. Abstract approved Jeffrey J. Morrell