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Phytophthora species and riparian alder tree damage in western Oregon

Creator:: Sims, Laura L.
Abstract:: The genus Phytophthora contains some of the most destructive pathogens of forest trees, including the most destructive pathogen of alder in recent times, Phytophthora alni. Alder trees were reported to be suffering from canopy dieback in riparian ecosystems in western Oregon, which prompted a survey of alder health and monitoring...
Resource Type:: Dissertation
Full Text:: Tree Damage in Western Oregon Abstract approved: Everett M. Hansen The genus Phytophthora

Pathogenicity of Phytophthora species from Oregon waterways

Creator:: Navarro, Sarah M.
Abstract:: Described as one of the most destructive pathogens of agricultural crops and forest trees, Phytophthora is a genus of microorganisms containing over 100 known species. Phytophthora alni has caused collar and root disease in alders throughout Europe and a form of the species has recently been isolated in North America....
Resource Type:: Masters Thesis
Full Text:: alder is not susceptible to the twelve Phytophthora species recovered from western Oregon riparian

Late blight of tomato : tentative suggestions for control in Oregon

Creator:: Oregon State College. Agricultural Experiment Station, Owens, Charles Elmer, 1877-, and McWhorter, Frank, 1896-1985
Abstract:: Published February 1943. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: . ?dcShorter Late-bligbta diseae ;;hich attacks potatoes in western uregon with more or less severity from

Late blight of tomato : tentative suggestions for control in Oregon

Creator:: Oregon State College. Agricultural Experiment Station, Owens, Charles Elmer, 1877-, and McWhorter, Frank, 1896-1985
Abstract:: Published June 1942. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: of 1941 a disease resembling late blight of potatoes attacked tomatoes in western Oregon and caused

The epidemiology of sudden oak death in Oregon forests

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:: Oregon…………………………………….. 3 Dispersal of forest Phytophthora spp…………………………….......... 9 Concluding

Phytophthora ramorum : a guide for Oregon nurseries

Creator:: Oregon State University. Extension Service, Parke, Jennifer Lee, Pscheidt, Jay William, and Linderman, R. G.
Abstract:: A newly described funguslike organism named Phytophthora ramorum was discovered in 1993 to cause leaf blight, stem canker, and tip dieback on nursery-grown rhododendrons and viburnums in Germany and the Netherlands. At about the same time, many tanoaks (Lithocarpus densiflorus) and oaks (Quercus sp.) in the San Francisco Bay Area...
Resource Type:: Technical Report
Full Text:: Phytophthora ramorum: A guide for Oregon nurseries

Susceptibility of Pacific yew (Taxus brevifolia Nutt.) to Phytophthora lateralis

Creator:: Murray, Marion S.
Abstract:: In 1991 Pacific yew (Taxus brevifolia Nutt.) was reported as a new host for Phytophthora lateralis Tucker and Milbrath which is an aggressive root rot pathogen thought previously to be specific to Port-Orford-cedar. This study was designed to compare the pathogenicity of P. lateralis on the two hosts, and to...
Resource Type:: Masters Thesis
Full Text:: -tree Pacific yew subplots in Phytophthora lateralis-infested drainages in southwest Oregon and

Susceptibility of golden chinquapin (Chrysolepis chrysophylla) to Phytophthora cambivora

Creator:: Saavedra, Angel Luis
Abstract:: In early 2000, unusual mortality of a native North American tree, golden chinquapin, was reported by the USDA-Forest Service. Dying trees exhibited girdling cankers in the inner bark of the lower bole, branch flagging and defoliation. Isolations from necrotic tissues and soil associated with diseased or killed trees yielded Phytophthora...
Resource Type:: Masters Thesis
Full Text:: , 2006. Title: Susceptibility of Golden Chinguapin (Chryso/epis chrysophylla) to Phytophthora cambivora

Preliminary recommendations for the control of the root and crown disease of cypress

Creator:: Oregon State College. Agricultural Experiment Station, Milbrath, John A., 1909-, and McWhorter, Frank, 1896-1985
Abstract:: Published May 1938. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: AGRICULTURAL E)'ERThENTT STATION Oregon State College Vm. A

A Phytophthora-induced disease of English holly, Ilex aquifolium L.

Creator:: Buddenhagen, I. W.
Resource Type:: Masters Thesis
Full Text:: , 3. Phytophthora disease. This disease is the most serious disease of holly In Oregon at the

ScholarsArchive@OSU

Phytophthora species and riparian alder tree damage in western Oregon

Pathogenicity of Phytophthora species from Oregon waterways

Late blight of tomato : tentative suggestions for control in Oregon

Late blight of tomato : tentative suggestions for control in Oregon

The epidemiology of sudden oak death in Oregon forests

Phytophthora ramorum : a guide for Oregon nurseries

Susceptibility of Pacific yew (Taxus brevifolia Nutt.) to Phytophthora lateralis

Susceptibility of golden chinquapin (Chrysolepis chrysophylla) to Phytophthora cambivora

Preliminary recommendations for the control of the root and crown disease of cypress

A Phytophthora-induced disease of English holly, Ilex aquifolium L.

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