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Filtering by: Creator Gray, James Robert Creator James, Robert L. Subject Conifers -- Diseases and pests -- Idaho

Studies of Fusarium associated with containerized conifer seedling diseases, 2. Diseases of western larch, Douglas-fir, grand fir, subalpine fir, and ponderosa pine seedlings at the USDA Forest Service Nursery, Coeur d'Alene, Idaho

Creator:

James, Robert L. and United States. Forest Service. Northern Region

Abstract:

Containerized western larch, Douglas-fir, grand fir, subalpine fir, and ponderosa pine seedlings which displayed disease symptoms were sampled for presence of Fusarium spp. Seedlings from 33 seedlots within the Northern Region were sampled. Major types of diseases included post-emergence damping-off, root disease (late damping-off), and cotyledon blight. Fusarium oxysporum was...

Resource Type:

Technical Report
Occurrence of Fusarium on leach pine cells from the USDA Forest Service Nursery, Coeur d'Alene, Idaho

Creator:

James, Robert L., Gilligan, Carma J., and United States. Forest Service. Northern Region

Abstract:

Three hundred fifty Leach pine cells used to grow containerized conifer seedlings at the USDA Forest Service Nursery in Coeur d'Alene, Idaho, were sampled for Fusarium and Trichoderma colonization. Cells were either sampled prior to or after cleaning. Cleaning reduced Fusarium colonization from 86 percent of the cells to about...

Resource Type:

Technical Report
Root disease of containerized conifer seedlings, Western Forest Systems Nursery, Lewiston, Idaho

Creator:

James, Robert L., United States. Forest Service. Northern Region, and United States. Forest Pest Management

Abstract:

Investigations of containerized western white pine, western larch, and Douglas-fir seedlings at the Western Forest Systems Nursery in Lewiston, Idaho, revealed that many seedlings were colonized with Fusarium oxysporum although they lacked severe disease symptoms. White pine seedlings were also infected with Pythium spp., probably as a result of sowing...

Resource Type:

Technical Report

ScholarsArchive@OSU

Studies of Fusarium associated with containerized conifer seedling diseases, 2. Diseases of western larch, Douglas-fir, grand fir, subalpine fir, and ponderosa pine seedlings at the USDA Forest Service Nursery, Coeur d'Alene, Idaho

Occurrence of Fusarium on leach pine cells from the USDA Forest Service Nursery, Coeur d'Alene, Idaho

Root disease of containerized conifer seedlings, Western Forest Systems Nursery, Lewiston, Idaho

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