Index Catalog // ScholarsArchive@OSU

Creator:: Gibson, Kenneth E., McGregor, Mark D., Bennett, D. D., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Thirty permanent mountain pine beetle population trend plots were established in each of six areas in the state in 1979. Infestation levels ranged from 0 to 47.8 new attacks per acre. The potential for increased mortality is considered high for all areas. Each area will be evaluated for 5 years...
Resource Type:: Technical Report
Full Text:: -Forest Service, State and Private Forestry, Missoula, MT. Gibson, K. E. and D. D. Bennett. 1978. Damage

Creator:: McGregor, Mark D. and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: , Montana, 1970. USDA Forest Serv., Northern Region, Div. of State and Priv. Forestry, Missoula, Montana, 12

Creator:: Tunnock, Scott, Stein, John D., Tagestad, Arden, and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: An active infestation of ash borer, Podosesia syringae (Harris) was detected in green ash, Fraxinus pennsylvanica Marsh, surrounding the Bowman-Haley Reservoir in 1973. A survey in 1974 showed that 40.4 percent of 690 trees examined contained active ash borer attacks. Forty-three out of 140 windbreaks were sampled and each one...
Resource Type:: Technical Report
Full Text:: , Forest Environmental Protection, Northern Region, USDA Forest Service, Missoula, Montana; research

Creator:: Tunnock, Scott, Tagestad, Arden, and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: An evaluation was made during midsummer 1972 to measure damage by the carpenterworm, Prionoxystus robiniae, and the ash borer, Podosesia syringae, to green ash in windbreaks in North Dakota. Intensity of infestation was determined in four land resource areas and four age classes of windbreaks. Of the 96 windbreaks examined...
Resource Type:: Technical Report
Full Text:: AGRICULTURE — FOREST SERVICE DIVISION OF STATE AND PRIVATE FORESTRY Region One Missoula, Montana • II 4

Creator:: Williams, R. E. and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: "Holes" with dead, dying, and downed trees in the forest canopy could be reliably identified on 9- by 9-inch Kodak Ektachrome Infrared Aero film 2443 as root disease centers. Film scales larger than 1:4000 were best for detection of these "holes." Most commonly occurring causal organisms in root diseased trees...
Resource Type:: Technical Report
Full Text:: REGION COMPACT • • n U. S. DEPARTMENT OF AGRICULTURE DIVISION OF STATE AND PRIVATE FORESTRY FOREST

Creator:: Dewey, Jerald E., Ciesla, William M., Lood, Rudolph C., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Over 10,000 acres of aerially visible western hemlock looper defoliation on grand fir was detected on State and Federal forests of central Idaho in 1972. This is the first report of this insect building up in Region 1 since a widespread outbreak in 1937-39. The western hemlock looper has the...
Resource Type:: Technical Report
Full Text:: ) • • U. S. DEPARTMENT OF AGRICULTURE DIVISION OF STATE AND PRIVATE FORESTRY /FOREST SERVICE NORTHERN

Creator:: United States. Forest Service. Northern Region. State & Private Forestry, Tunnock, Scott, McGregor, Mark D., and Bousfield, Wayne E.
Abstract:: A study was made to determine the distribution of parasites of the larch casebearer, Coleophora laricelia, within crowns of western larch, Larix occidentalis. The most common parasites recovered in order of their abundance, were: Agathis pumila (Ratz.), Diciadocerus sp. near westwoodii, Spilochalcis albifrons (Walsh), and MesopoZobus sp. Parasitism by A....
Resource Type:: Technical Report
Full Text:: WESTERN LARCH TREES IN THE Northern Region • U. S. Department of Agriculture — Forest Service Division

Creator:: Dewey, Jerald E. and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: A 3-year evaluation of Douglas-fir cones in Montana and Yellowstone National Park, Wyoming, showed the western spruce budworm, Choristoneura occidentalis Freeman, and midges were the most common and injurious insects found each year. Injury was so severe at some plots that no sound seeds could be found.
Resource Type:: Technical Report
Full Text:: . DEPARTMENT OF AGRICULTURE / FOREST SERVICE DIVISION OF STATE AND PRIVATE FORESTRY • NORTHERN REGION

Creator:: McGregor, Mark D., Oakes, Robert D., Meyer, Hubert E., United States. Forest Service. Northern Region. Cooperative Forestry & Pest Management, and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: drainages, Glacier View Ranger District, and in the Stillwater State Forest north of White- fish, Montana

Creator:: Hagle, Susan K. and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Two thousand and thirty-nine trees on 213 plots are being monitored yearly for root disease infection and mortality. Three compartments on the Fernan Ranger District of the Idaho Panhandle National Forests are the site of the project. Relationships between factors such as species, aspect, slope, elevation, habitat type, stand appearance...
Resource Type:: Technical Report
Full Text:: December 1985 United States Department of Agriculture Forest Service Northern Region • S. State and

ScholarsArchive@OSU