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Creator:: McGregor, Mark D. and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: R. D. Oakes, Biological Technicians • • • • • USDA Forest Service Northern Region Cooperative

Creator:: McGregor, Mark D., Oakes, Robert D., Dooling, Oscar J., and United States. Forest Service. Northern Region. Cooperative Forestry & Pest Management
Abstract:: Douglas-fir beetle has increased to epidemic levels in mature-overmature Douglas-fir that has been top killed by western spruce budworm. About 42 trees per acre have been killed in an area at Lyon's Face and 36 trees per acre in other areas along the Madison River during the past 3 years....
Resource Type:: Technical Report
Full Text:: Agriculture Forest Service Northern Region P.O. Box 7669 Missoula, Montana 59807 Western spruce budworm

Creator:: James, Robert L. and United States. Forest Service. Northern Region. Cooperative Forestry & Pest Management
Resource Type:: Technical Report
Full Text:: 1956). • • • • United StatesDepartment of Agriculture Forest Service Northern Region P.O. Box

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

Creator:: Stipe, Lawrence E., Niwa, Christine G., Eder, Robert G., Gibson, Kenneth E., and Meyer, Hubert E.
Abstract:: Cooperative Forestry and Pest Management conducted a pilot control project in central Montana to determine the effectiveness of two commercial formulations of BaaiUus th,uringiensis Berliner applied at 8 billiori international units (BIU) per acre (19.8 BIU per hectare) when used under operational conditions against the western spruce budworm, Choristoneu:roa ocaidentalis...
Resource Type:: Technical Report
Full Text:: and Pest Management Northern Region USDA Forest Service P. O. Box 7669 Missoula, Montana 59807

Creator:: James, Robert L. and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Eighteen isolates of Fusarium comprising four species (F. oxysporum, E. avenaceum, E. acuminatum, and F. sambucinum) isolated from diseased conifer seedlings from nurseries were tested for pathogenicity on Douglas-fir germlings. Three of the most pathogenic F. oxysporum isolates on Douglas-fir germlings were also tested on ponderosa pine germlings and older...
Resource Type:: Technical Report
Full Text:: Technician, Cooperative Forestry and Pest Management Cooperative Forestry and Pest Management USDA Forest

Creator:: James, Robert L. and United States. Forest Service. Northern Region. Cooperative Forestry & Pest Management
Abstract:: Needle tip dieback of 2-0 ponderosa pine seedlings at the Coeur d'Alene Nursery was investigated. Organisms associated with dieback symptoms were identified and infected trees were transplanted to determine disease effects on survival. The major fungus colonizing necrotic needles was Lophodermium nitens, a close associate of L. pinastri. The fungus...
Resource Type:: Technical Report
Full Text:: • • United States Forest Northern P.O.Box 7669 • Department of Service Region Missoula, Montana

Creator:: James, Robert L. and United States. Forest Service. Northern Region. Cooperative Forestry & Pest Management
Abstract:: Root diseases were evaluated on the Reuben's Reserve, Nez Perce Indian Reservation, Idaho. Nineteen trees adjacent to two suspected root disease centers were pushed with a D-6 tractor to expose their root systems. Extent of root necrosis and decay was determined and related to level of crown thinning, chlorosis, and...
Resource Type:: Technical Report
Full Text:: . United States Forest Northern • Department of Service Region Agriculture P.O. Box 7669 Missoula

Creator:: Monnig, Edward C.
Abstract:: This summary discusses the risk to human health associated with herbicide application projects to control noxious weeds and poisonous plants on lands administered by the USDA Forest Service in the Northern Region. The Northe!n Region consists of approximately 211.8 million acres of National Forest System (NFS) land in northern Idaho,...
Resource Type:: Technical Report

Creator:: James, Robert L. and United States. Forest Service. Northern Region. Cooperative Forestry & Pest Management
Abstract:: Root disease of 2-0 western white pine seedlings occurred at the Coeur d'Alene Nursery in 1982 within seedbeds fumigated with methyl bromide and chloropicrin. Although losses were not substantial, there were several groups of dead seedlings within affected seedbeds. Fusarium oxysporum was most often isolated from diseased roots. Other Fusarium...
Resource Type:: Technical Report
Full Text:: Service Northern Region RO, Box 7669 Missoula, Montana 59807 Figure 1.--Mortality of 2-0 western

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