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Preliminary results of seedling damage surveys in young plantations on selected forests in Region 1

Creator:: Hard, John S., Rice, John Leslie, and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Based on per acre costs, plantation establishment is one of the most expensive silvicultural practices (Pfister 1976), but only token studies have been done on frequency and causes of seedling injury and mortality in Region 1 plantations (Wenner 1976). Therefore, we conducted a survey in 1978 on four National Forests...
Resource Type:: Technical Report
Full Text:: SD-'G PRONG BI ,T39 FOREST R - INSECT & DISEASE " MANAGEMENT

Overwintering survival of mountain pine beetle larvae and resultant effects on beetle populations in the Northern Region in 1979

Creator:: Gibson, Kenneth E., Bennett, D. D., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: During December 1978 and January 1979, temperatures reached all-time lows in some parts of Montana. Overwintering mountain pine beetle populations were sampled at 11 sites during February and March 1979. Effects of the extreme cold varied from site to site, with larval mortality ranging from 6 percent to 100 percent....
Resource Type:: Technical Report
Full Text:: S D ,4c/ A3 FORES81126°mq INSECT S. DISEASE '145 MANAGE T iY

Potential for defoliation by western spruce budworm in northern Idaho and Montana, 1977

Creator:: Tunnock, Scott and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Epidemic populations of the western spruce budworm persist in the Northern Region. Aerial surveys made in August 1976 showed a decline in the acreage of aerially visible defoliation. In northern Idaho, the defoliated area dropped from 831,487 acres in 1975 to 655,711 acres in 1976, down 21 percent. Surveys in...
Resource Type:: Technical Report
Full Text:: +100,010 Subtotal 831,487 655,711 -175,776 Montana Beaverhead National Forest 240,990 250,427 + 9,437

Potential defoliation in 1979 from a ponderosa pine needle miner on the Flathead Indian Reservation and Missoula Valley, Montana

Creator:: Tunnock, Scott, Meyer, Hubert E., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: A needle miner, Coleotechnites sp., defoliated approximately 3,100 acres of ponderosa pine, Pinus ponderosa Laws. on the Flathead Indian Reservation, Montana, during 1978. Three other small areas in the Missoula Valley were infested also. Overwintering populations of larvae are low; thus, light defoliation is expected in 1979 in presently infested...
Resource Type:: Technical Report
Full Text:: A3 FOREST R4 i INSECT & DISEASE 7?- x MANAGEMENT USDA • FOREST SERVICE • NORTHERN REGION State

Evaluation of a mountain pine beetle infestation, Shook Mountain, Sula District, Bitterroot National Forest, 1977

Creator:: McGregor, Mark D. and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: A mountain pine beetle outbreak developed on the north face of Shook Mountain in 1972. Beetle populations increased, and have continued at an epidemic level since 1973. Surveys show 404,798 ponderosa pine containing 12,173,940 bd. ft. volume of merchantable timber; and 20,875 lodgepole pine containing 730,625 bd. ft. volume of...
Resource Type:: Technical Report
Full Text:: Tech. Publ. 36. 97 pp. Bousfield, W. E. (In Press). Forest Insect and Disease Damage Survey. Griffin

Evaluation of pine butterfly infestations on the Flathead Indian Reservation, Montana, 1977

Creator:: Tunnock, Scott, Meyer, Hubert E., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: A2 d3 9 FOREST 77-7 INSECT & DISEASE MANAGEMENT USDA • FOREST

Evaluation of proposed dwarf mistletoe management projects on the White Sulphur Springs Ranger District, Lewis & Clark National Forest

Creator:: Dooling, Oscar J. and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Residual lodgepole pine in older clearcuts are dwarf mistletoe-infected and pose a threat to regeneration present. Removal of these residuals coupled with planned or completed precommercial thinnings will effectively reduce dwarf mistletoe to an insignificant level and increase future volume yields. The benefit/cost ratio based on timber values alone is...
Resource Type:: Technical Report
Full Text:: 3771W ivyPRONG BINDER 3 FOREST 7g1 INSECT DISEASE MANAGEMENT USDA

Status of mountain pine beetle infestations in second-growth ponderosa pine stands, Little Belt and Big Snowy Mountains, Lewis & Clark National Forest, Montana, 1976

Creator:: Hamel, Dennis R., Oakes, Robert D., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Mountain pine beetle infestations in second-growth ponderosa pine have been chronic in the Little Belt and Big Snowy Mountains since 1947. In 1976, increasing numbers of attacked trees were observed. Current infestation intensity averages 82 trees per hectare. Losses are expected to continue as long as stands remain stagnates. Commercial...
Resource Type:: Technical Report
Full Text:: PINE STANDS LITTLE BELT AND BIG SNOWY MOUNTAINS, LEWIS & CLARK NATIONAL FOREST, MONTANA, 1976 by D

Harvesting strategies for management of mountain pine beetle infestations in lodgepole pine, Gallatin National Forest, Montana : progress report, 1976

Creator:: Hamel, Dennis R., McGregor, Mark D., Oakes, Robert D., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: ‘'" UNIVERSITY ••.% ycfp, 91.10 SP _FOREST INSECT S. DISEASE 3 MANAGEMENT USDA • FOREST SERVICE • NORTHERN

Dwarf mistletoe loss assessment on the Bitterroot and Lolo National Forests, Montana

Creator:: Dooling, Oscar J., Pye, Laurel Hilarie, 1952-, Eder, Robert G., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: mistletoe on Douglas-fir in western Montana. USDA-Forest Service, Northern Region Insect and Disease

ScholarsArchive@OSU

Preliminary results of seedling damage surveys in young plantations on selected forests in Region 1

Overwintering survival of mountain pine beetle larvae and resultant effects on beetle populations in the Northern Region in 1979

Potential for defoliation by western spruce budworm in northern Idaho and Montana, 1977

Potential defoliation in 1979 from a ponderosa pine needle miner on the Flathead Indian Reservation and Missoula Valley, Montana

Evaluation of a mountain pine beetle infestation, Shook Mountain, Sula District, Bitterroot National Forest, 1977

Evaluation of pine butterfly infestations on the Flathead Indian Reservation, Montana, 1977

Evaluation of proposed dwarf mistletoe management projects on the White Sulphur Springs Ranger District, Lewis & Clark National Forest

Status of mountain pine beetle infestations in second-growth ponderosa pine stands, Little Belt and Big Snowy Mountains, Lewis & Clark National Forest, Montana, 1976

Harvesting strategies for management of mountain pine beetle infestations in lodgepole pine, Gallatin National Forest, Montana : progress report, 1976

Dwarf mistletoe loss assessment on the Bitterroot and Lolo National Forests, Montana

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