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Filtering by: Subject Conifers -- Seedlings -- Diseases and pests -- Oregon Remove constraint Subject: Conifers -- Seedlings -- Diseases and pests -- Oregon Creator James, Robert L. Remove constraint Creator: James, Robert L. Decade 1980-1989 Remove constraint Decade: 1980-1989 Language English [eng] Remove constraint Language: English [eng]

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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

Full Text:

Trichoderma and vice versa. Ability of the Fusarium isolates from cells to cause seedling diseases is unknown
Resistance of Botrytis cinerea to vinclozolin, iprodione and dicloran

Creator:

James, Robert L., Gilligan, Carma J., and United States. Forest Service. Northern Region. Cooperative Forestry & Pest Management

Abstract:

Isolates of Botrytis cinerea from containerized conifer seedlings from two nurseries in the Northern Rocky Mountains were exposed to the dicarboximide fungicides vinclozolin and iprodione and the chlorinated nitroaniline fungicide dicloran to evaluate occurrence and characteristics of resistant strains. The isolates were grown on test media prepared by incorporating the...

Resource Type:

Technical Report

Full Text:

C. J. GILLIGAN Biological Technician Cooperative Forestry and Pest Management USDA Forest Service
An evaluation of the efficacy of hot water-chemical treatments to clean styroblock containers, Champion Timberlands Nursery, Plains, Montana

Creator:

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

Abstract:

Treating styroblock containers in hot water (68°C) with a very dilute bleach and detergent solution effectively reduced populations of Fusarium and Cylindrocarpon spp., two potential root pathogens of containerized conifer seedlings. However, the treatment did not significantly reduce levels of Phoma (another potential pathogen) nor saprophytic Penicillium and Alternaria spp....

Resource Type:

Technical Report

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Fusarium and Cylindrocarpon spp., two potential root pathogens of containerized conifer seedlings. However
Evaluation of root diseases of containerized conifer seedlings at the Champion Timberlands Nursery, Plains, Montana

Creator:

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

Abstract:

Investigations of containerized conifer seedling root diseases at the Champion Timberlands Nursery revealed that Fusarium oxysporum was most commonly isolated from seed, seedling roots, and styroblock containers. Amount of seed infection varied widely among the seedlots tested, but was usually below 5 percent. Runningwater rinses did not reduce amounts of...

Resource Type:

Technical Report

Full Text:

plague containerized conifer seedling production is root disease caused by Fusarium spp. (James 1984a
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

Full Text:

1985 STUDIES OF FUSARIUM ASSOCIATED WITH CONTAINERIZED CONIFER SEEDLING DISEASES: (2). DISEASES OF
Studies of Fusarium associated with containerized conifer seedling diseases : pathogenicity tests of isolates from the Alpine Nursery, Kalispell, Montana

Creator:

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

Abstract:

Isolates of Fusarium oxysporum, F. acuminatum, and F. sambucinum obtained from peat-vermiculite soil mixes were tested for pathogenicity on ponderosa pine, lodgepole pine, western larch, and blue spruce containerized seedlings and on germination of Scots pine and blue spruce seed. Ponderosa pine seedling were the least susceptible to killing by...

Resource Type:

Technical Report

Full Text:

CONIFER SEEDLING DISEASES: • yu.gli-/y PATHOGENICITY TESTS OF ISOLATES FROM THE ALPINE NURSERY,KALISPELL
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

Full Text:

Forest Pest SD) LI- M • A- 3 Ina. gg -3 ROOT DISEASE OF
Cankers of Russian-olive seedlings at the Montana State Forest Tree Nursery, Missoula, Montana

Creator:

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

Abstract:

Fungi associated with cankers of Russian-olive seedlings at the Montana State Nursery, Missoula, were investigated. Phomopsis elaeagni was most often isolated from and fruiting on cankers. Other associated fungi were Phoma herbarum, P. eupyrena, P. chrysanthemicola, P. exigua, Alternaria alternate, Epicoccum nigrum, and Fusarium moniliforme. Because of its common occurrence...

Resource Type:

Technical Report

Full Text:

transferred to the genus Phomopsis (Arnold and Carter 1979). The disease has been described on older planted
Evaluation of diseases within selected stands on the Priest River Experimental Forest, Idaho

Creator:

James, Robert L. and United States. Forest Service. Northern Region. State & Private Forestry

Abstract:

Three stands along Benton Creek within the Priest River Experimental Forest, Idaho, were surveyed for diseases using previously established timber inventory plots and sample trees. These surveys provided information to aid in formation of silvicultural prescriptions by CEFES (Continuing Education in Forest Ecology and Silviculture) students. Diseases were quantified at...

Resource Type:

Technical Report

Full Text:

Region's Insect and Disease Damage Survey System (INDIDS). The evaluation showed that about 10 percent of
Pathogenicity of Alternaria alternata on young Douglas-fir and Engelmann spruce germlings

Creator:

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

Resource Type:

Technical Report

Full Text:

Region, Cooperative Forestry and Pest Management, Missoula, MT. 2/ Retired, USDA Forest Service

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Creator

James, Robert L.[remove]32
United States. Forest Service. Northern Region20
Gilligan, Carma J.9
United States. Forest Service. Northern Region. Cooperative Forestry & Pest Management6
United States. Forest Service. Northern Region. State & Private Forestry5
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1980-1989[remove]32

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Language

English [eng][remove]32

Resource Type

Technical Report32

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Copyright Not Evaluated32

Subject

Report (United States. Forest Service. Northern Region. Forest Pest Management)17
Fusarium diseases of plants -- Idaho4
Conifers -- Diseases and pests -- Idaho3
Conifers -- Diseases and pests -- Montana3
Conifers -- Seedlings, Container -- Idaho3
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