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Pathogenic characteristics of Fusarium solani isolated from inland Pacific Northwest forest nurseries

Creator:: James, Robert L., Perez, R., United States. Forest Health Protection, and United States. Forest Service. Northern Region
Abstract:: Forty-seven isolates of Fusarium solani obtained from the roots of diseased and healthy conifer seedlings and forest nursery soil were tested for pathogenicity on young Douglas-fir germinants under controlled laboratory conditions. Isolate virulence varied widely; a few were highly virulent whereas many were classified as non-pathogenic. Isolates from the roots...
Resource Type:: Technical Report
Full Text:: CHARACTERISTICS OF FUSARIUM SOLANI ISOLATED FROM INLAND PACIFIC NORTHWEST FOREST NURSERIES R.L. James, Plant

Pathogenic characteristics of Fusarium acuminatum isolated from inland Pacific Northwest nurseries

Creator:: James, Robert L., United States. Forest Health Protection, and United States. Forest Service. Northern Region
Abstract:: Thirty-three isolates of Fusarium acuminatum obtained from inland Pacific Northwest forest nurseries were tested for their pathogenicity on young Douglas-fir germinants under controlled laboratory conditions. Tested isolates were from forest nursery soil, roots of healthy-appearing and diseased conifer seedlings, Styrofoam and hard plastic containers, conifer seeds, 411 and adult fungus...
Resource Type:: Technical Report
Full Text:: CHARACTERISTICS OF FUSARIUM ACUMINATUM ISOLATED FROM INLAND PACIFIC NORTHWEST NURSERIES R.L. James Plant

Examinations of Fusarium sambucinum on Humulus lupulus and co-infection with hop stunt viroid in commercial hop fields

Creator:: Cerruti, Natasha R.
Abstract:: After an unusually high incidence of Fusarium canker was observed in commercial hop fields of the Pacific Northwest, field surveys were conducted and revealed that canker incidence ranged from 20 to 60% of bines sampled in six commercial fields, as well as wide-spread Hop stunt viroid infection in these six...
Resource Type:: Masters Thesis
Full Text:: in the Pacific Northwest causing necrosis of hop cones(5). Fusarium crookwellense has exhibited

Hop cone tip blight : a new disease in the Pacific Northwest

Creator:: Bienapfl, John C.
Abstract:: A necrosis at the tip of cones was observed on hop (Humulus lupulus), cultivar "Nugget", grown in Oregon in the early 1990's. Fusarium sambucinum and F. avenaceum were recovered from symptomatic cones in 1998 and preliminary inoculation experiments suggested both Fusarium species could cause hop cone necrosis. Studies were carried...
Resource Type:: Masters Thesis
Full Text:: Blight: A New Disease in the Pacific Northwest Abstract approved: Cynthia M. Ocamb A necrosis at the

Monitoreo del virus del enrollamiento de la hoja y de los piojos harinosos en los viñedos del Noroeste Pacífico

Creator:: Skinkis, Patricia A., Dreves, Amy J., Walton, Vaughn M., and Martin, R. R. (Robert R.)
Abstract:: Published September 2009. A more recent revision exists. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: . • El mejor momento para el muestreo de piojos harinosos en el Noroeste Pacífico (Pacific Northwest

Field monitoring for grapevine leafroll virus and mealybug in Pacific Northwest vineyards [2009]

Creator:: Skinkis, Patricia A., Dreves, Amy J., Walton, Vaughn M., and Martin, R. R. (Robert R.)
Abstract:: Reviewed July 2009. A more recent revision exists. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: Monitoring for Grapevine Leafroll Virus and Mealybug in Pacific Northwest Vineyards 1 Oregon has been

Association of Fusarium with nondiseased containerized ponderosa pine seedlings at the USDA Forest Service Nursery, Coeur D'Alene, Idaho

Creator:: James, Robert L., Gilligan, Carma J., United States. Forest Pest Management, and United States. Forest Service. Northern Region
Abstract:: A total of 45 nondiseased containerized ponderosa pine seedlings from 10 seedlots were sampled at three different times during the growing season for root infection by Fusarium and Trichoderma at the USDA Forest Service Nursery in Coeur d'Alene, Idaho. More than 90 percent of the seedlings had roots infected with...
Resource Type:: Technical Report
Full Text:: quantitative isolation of Fusarium oxysporum from natural soil. Rev. Plant Prot. Res. 8:114-125. Nelson, P. E

Population dynamics, distribution, and control of nematodes in highbush blueberries

Creator:: Schroeder, Jan-Marie
Abstract:: Fluctuations in population density of Pratylenchus sp., Trichodorus sp., and Xiphinema americanum s. 1. in three blueberry fields were determined monthly for one year. Pratylenchus densities were greatest in August and least in October. Three distinct periods of population growth occurred; during January, April, and between June and August. Trichodorus...
Resource Type:: Masters Thesis
Full Text:: relatively new agricultural enterprise in the Pacific Northwest, with a high percentage of the acreage

Plant-parasitic nematodes affecting wheat yield in the Pacific Northwest

Creator:: Oregon State University. Extension Service and Smiley, Richard W.
Abstract:: Nematodes are roundworms with complex organ systems. They occur worldwide in all environments. Most species benefit agriculture by contributing to decomposition of organic matter and are important members of the food chain. Some species are parasitic to plants or animals. More than 2,000 of the 20,000 identified nematode species are...
Resource Type:: Technical Report
Full Text:: Pacifi c Northwest. Plant Disease 89 (in press). Yi el d (b u/ ac re ) Figure 9.—Infl uence of

Effects of preplant soil treatments on Fusarium and Trichoderma populations and fungal root colonization of 2-0 nondiseased western white pine seedlings - USDA Forest Service Nursery, Coeur d'Alene, Idaho

Creator:: James, Robert L., United States. Forest Health Protection, and United States. Forest Service. Northern Region
Abstract:: Preplant soil treatments were implemented to determine effects on populations of potentiallypathogenic Fusarium and potentially disease-suppressive Trichoderma spp. as well as root colonization by these and other selected fungi on healthy-appearing, bare root 2-0 western white pine seedlings at the USDA Forest Service Nursery, Coeur d'Alene, Idaho. Soil treatments included...
Resource Type:: Technical Report
Full Text:: . Pathogenic characteristics of Fusarium acuminatum isolated , from inland Pacific Northwest nurseries. USDA

ScholarsArchive@OSU

Pathogenic characteristics of Fusarium solani isolated from inland Pacific Northwest forest nurseries

Pathogenic characteristics of Fusarium acuminatum isolated from inland Pacific Northwest nurseries

Examinations of Fusarium sambucinum on Humulus lupulus and co-infection with hop stunt viroid in commercial hop fields

Hop cone tip blight : a new disease in the Pacific Northwest

Monitoreo del virus del enrollamiento de la hoja y de los piojos harinosos en los viñedos del Noroeste Pacífico

Field monitoring for grapevine leafroll virus and mealybug in Pacific Northwest vineyards [2009]

Association of Fusarium with nondiseased containerized ponderosa pine seedlings at the USDA Forest Service Nursery, Coeur D'Alene, Idaho

Population dynamics, distribution, and control of nematodes in highbush blueberries

Plant-parasitic nematodes affecting wheat yield in the Pacific Northwest

Effects of preplant soil treatments on Fusarium and Trichoderma populations and fungal root colonization of 2-0 nondiseased western white pine seedlings - USDA Forest Service Nursery, Coeur d'Alene, Idaho

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