Index Catalog // ScholarsArchive@OSU

Creator:: Martin, Danielle K. H.
Abstract:: Since around 1923 Port-Orford-cedar (Chamaecyparis lawsoniana (A. Murray) Parl.) has been affected by Phytophthora root disease caused by the virulent introduced pathogen Phytophthora lateralis. A systematic resistance testing and breeding program located at the USDA Forest Service Dorena Genetic Resource Center in Cottage Grove, Oregon was initiated in 1997 with...

Creator:: Martin, Danielle K. H.
Abstract:: Since around 1923 Port-Orford-cedar (Chamaecyparis lawsoniana (A. Murray) Parl.) has been affected by Phytophthora root disease caused by the virulent introduced pathogen Phytophthora lateralis. A systematic resistance testing and breeding program located at the USDA Forest Service Dorena Genetic Resource Center in Cottage Grove, Oregon was initiated in 1997 with...
Full Text:: ) Parl.) has been affected by Phytophthora root disease caused by the virulent introduced pathogen

Creator:: Goheen, Donald J., Mallams, Katrina, Betlejewski, Frank, and Hansen, Everett
Abstract:: Two techniques widely recommended for managing Port-Orford-cedar root disease (caused by the introduced pathogen Phytophthora lateralis) are vehicle washing and roadside sanitation. However, their effectiveness has never been tested using a sample-based approach. Vehicle washing effectiveness was evaluated using Port-Orford-cedar seedling baits and a double-washing method. Washing with water can...
Resource Type:: Article
Full Text:: Decreasing Spread Potential of Port-Orford-Cedar Root Disease Donald J. Goheen, Katrina Mallams, Frank

Creator:: Goheen, Ellen Michaels, Shaw, David Carl, 1955-, and Oregon State University. Extension Service
Abstract:: Alerts people who visit, live, or work in certain areas of California and Oregon about a serious plant disease called Sudden Oak Death, and asks them to take steps to prevent spreading the disease. Gives action steps, shows disease symptoms on various host plants, and gives numerous sources for more...
Resource Type:: Technical Report
Full Text:: Oak Death? Sudden Oak Death is the common name for a disease caused by Phytophthora ramorum, a

Creator:: Yeo, John R., Weiland, Jerry E., Sullivan, Dan M., and Bryla, David R.
Abstract:: Phytophthora cinnamomi Rands is a ubiquitous soilborne pathogen associated with root rot in many woody perennial plant species, including highbush blueberry (Vaccinium corymbosum). To identify genotypes with resistance to the pathogen, cultivars and advanced selections of highbush blueberry were grown in a greenhouse and either inoculated or not with propagules...
Resource Type:: Article
Full Text:: . Susceptibility of Highbush Blueberry Cultivars to Phytophthora Root Rot John R. Yeo1 Department of Crop and Soil

Creator:: Shaw, Charles G. III, Omdal, D. W., Ramsey-Kroll, A., and Roth, L. F.
Abstract:: A stand of ponderosa pine (Pinus ponderosa) severely affected by Armillaria root disease was treated with five different levels of sanitation by root removal to reduce root disease losses in the regenerating stand. Treatments included the following: (1) all trees pushed over by machine, maximum removal of roots by machine...
Resource Type:: Article
Full Text:: ponderosa) severely affected by Armillaria root disease was treated with five different levels of sanitation

Creator:: Vargas, Oscar L., Bryla, David R., Weiland, Jerry E., Strik, Bernadine C., and Sun, Luna
Abstract:: The use of conventional drip and alternative micro irrigation systems were evaluated for 3 years in six newly planted cultivars (Earliblue, Duke, Draper, Bluecrop, Elliott, and Aurora) of northern highbush blueberry (Vaccinium corymbosum L.). The drip system included two lines of tubing on each side of the row with in-line...
Resource Type:: Article
Full Text:: phytophthora root rot control. No insecticides or other fungicides were applied to the plants. Honeybee (Apis

Creator:: Kelsey, Rick G., Joseph, Gladwin, Westlind, Doug, and Thies, Walter G.
Abstract:: Phellinus sulphurascens (previously the Douglas-fir form of Phellinus weirii) is an important native pathogen causing laminated root rot in forests of western North America. Visual crown symptoms, or attacks by bark or ambrosia beetles appear only during advanced stages of the disease with extensive infection in the lower bole. Ethanol...
Full Text:: , 2 root headspace acetaldehyde, methanol, and propanol Acetaldehyde concentrations in the root

Creator:: Kelsey, Rick G., Joseph, Gladwin, Westlind, Doug, and Thies, Walter G.
Abstract:: Phellinus sulphurascens (previously the Douglas-fir form of Phellinus weirii) is an important native pathogen causing laminated root rot in forests of western North America. Visual crown symptoms, or attacks by bark or ambrosia beetles appear only during advanced stages of the disease with extensive infection in the lower bole. Ethanol...
Full Text:: : Laminated root rot Phellinus weirii Pseudotsuga menziesii Tree stress Root disease detection Beetle primary

Creator:: Kelsey, Rick G., Joseph, Gladwin, Westlind, Doug, and Thies, Walter G.
Abstract:: Phellinus sulphurascens (previously the Douglas-fir form of Phellinus weirii) is an important native pathogen causing laminated root rot in forests of western North America. Visual crown symptoms, or attacks by bark or ambrosia beetles appear only during advanced stages of the disease with extensive infection in the lower bole. Ethanol...
Resource Type:: Article

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