Index Catalog // ScholarsArchive@OSU

Creator:: Peterson, Ebba K.
Abstract:: The phytopathogen Phytophthora ramorum (Werres, DeCock & Man in't Veld), causal agent of Sudden Oak Death (SOD) of oaks (Quercus spp.) and tanoaks (Notholithocarpus densiflorus syn. Lithocarpus densiflorus), is established in coastal forests of the western United States. Since the discovery of SOD in the Douglas-fir / tanoak forests of...
Resource Type:: Dissertation
Full Text:: . Lithocarpus densiflorus), is established in coastal forests of the western United States. Since the

Creator:: Feng, Hui
Abstract:: High vegetative growth of Pinot Noir vine is a common problem in most vineyards of Oregon's Willamette Valley, where sunlight exposure and heat accumulation are limited. Consequently, growers in this region commonly use vineyard management strategies to regulate vine vigor and improve grape and wine quality. Wine quality is greatly...
Resource Type:: Dissertation
Full Text:: Western Oregon Abstract approved: Michael C. Qian High vegetative growth of Pinot

Creator:: Youngs, Lorna C.
Abstract:: The identity and distribution of ant species preying on the western spruce budworm (Choristoneura occidentalis Freeman) was investigated in eastern Oregon and western Montana. A sticky trap was developed to index ant foraging activity in the canopy by intercepting ants falling from the tree as they traveled between canopy and...
Resource Type:: Dissertation
Full Text:: Ant Predators of the Western Spruce Budworm (Choristoneura

Creator:: Fisher, Michael, (Michael Patrick), 1966-
Abstract:: Current research indicates that the expansion of western juniper can inhibit soil water retention, storage and prolonged releases from watersheds. This phenomenon is of great importance in eastern Oregon, as western juniper is encroaching into sagebrush/grass communities with a correlated reduction in herbaceous ground cover, resulting in reduced infiltration rates...
Resource Type:: Dissertation
Full Text:: or not the erosional forces are stronger in the western juniper-dominated system (control) as

Creator:: Cabrera Orozco, Yohanna
Abstract:: Treating durable, second-growth or plantation-grown material with supplemental chemicals could improve durability while enhancing the uniformity of the products. To test this hypothesis, the effect of two candidate biocide treatments on the durability of teak, redwood, and western redcedar was assessed in a ground proximity field test established in Hawaii....
Resource Type:: Dissertation
Full Text:: Fungal Colonization of Teak, Western Redcedar, and Redwood Abstract approved

Creator:: Deboodt, Timothy L.
Abstract:: Western juniper (Juniperus occidentalis) encroachment has been associated with increased soil loss and reduced infiltration resulting in the loss of native herbaceous plant communities and the bird and animal species that rely on them. Hydrologically, however, change in water yield has been linked with the amount of annual precipitation a...
Resource Type:: Dissertation
Full Text:: Watershed Response to Western Juniper Control AN ABSTRACT

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