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Effects of radio frequency waves on fungal colonization of styroblock containers

Creator:: James, Robert L., Trent, Andy, United States. Forest Health Protection, and United States. Forest Service. Northern Region
Abstract:: Fungal pathogens tend to accumulate within styroblock containers, which are reused to produce successive crops of container-grown seedlings. Most nurseries treat reused containers by immersing them in hot water for varying time periods. The efficacy of radio frequency waves (RFs) to reduce levels of selected groups of fungi within styroblock...
Resource Type:: Technical Report
Full Text:: Service, Northern Region, Forest Pest • Management. Nursery Disease Notes No. 128. 6p. James, R.L. and

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

Seedling disease at Coeur d'Alene forest nursery and its relation to outplanting survival

Creator:: Carlson, Clinton E. and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Diseased conifer nursery stock, including Douglas-fir, western larch, and Engelmann spruce, was selected from the U.S. Forest Service nursery at Coeur d'Alene, Idaho, to determine (1) the most probable cause of disease, (2) the fate of outplanted diseased stock, and (3) the height growth of outplanted diseased seedlings. Fusarium spp....
Resource Type:: Technical Report
Full Text:: positive proof that one or more of the fungi isolated were the cause of conifer seedling disease and were

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
Full Text:: 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

Bark beetle conditions, Northern Region, 1978

Creator:: McGregor, Mark D., Gibson, Kenneth E., Bennett, D. D., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: trees larger than 6 inches dbh. There was no apparent association between root disease and bark beetle

ScholarsArchive@OSU

Effects of radio frequency waves on fungal colonization of styroblock containers

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

Seedling disease at Coeur d'Alene forest nursery and its relation to outplanting survival

Resistance of Botrytis cinerea to vinclozolin, iprodione and dicloran

An evaluation of the efficacy of hot water-chemical treatments to clean styroblock containers, Champion Timberlands Nursery, Plains, Montana

Evaluation of root diseases of containerized conifer seedlings at the Champion Timberlands Nursery, Plains, Montana

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

Studies of Fusarium associated with containerized conifer seedling diseases : pathogenicity tests of isolates from the Alpine Nursery, Kalispell, Montana

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

Bark beetle conditions, Northern Region, 1978

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