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Creator:: James, Robert L., Stewart, C. A., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: An impact survey to determine extent and distribution of root disease centers was completed for the Nezperce National Forest, Idaho, in 1980. Lowlevel color infrared photography was used to delineate root disease centers within National Forest inventory subcompartments. Suspected root disease centers were ground checked to determine associated fungi and...
Resource Type:: Technical Report
Full Text:: Forests in the Region (table 1). Table 1--Area of root disease centers within commercial forest stands on

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:: • STATUS OF THE stern Hemlock Looper IN THE NORTHERN REGION 1972 \ (A Potentially Devastating Forest Pest

Creator:: James, Robert L., Dewey, Jerald E., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: impact eval- uations will include tree mortality and volume loss estimates.• • United States Forest

Creator:: Tunnock, Scott and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: Land Management 11 Rocky Boy's Indian Reservation 11 Stillwater State Forest 11 Swan

Creator:: Bousfield, Wayne E., Williams, Ralph E., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: Management, USDA Forest Service, Northern Region. • 10. • • • V Damage caused by the western spruce

Creator:: McGregor, Mark D. and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Mountain pine beetle populations increased to epidemic levels on the Kootenai National Forest in 1972. Nearly 397,000 trees containing almost 32 million board feet have been killed. More than 84,000 trees will probably be killed in 1978. Infestation has the potential to intensify in high hazard stands, and some increase...
Resource Type:: Technical Report
Full Text:: MANAGEMENT USDA • FOREST SERVICE • NORTHERN REGION State & Private Forestry • Missoula, MT 59801 Report 78

Creator:: United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: USDA FOREST SERVICE/NORTHERN REGION Report No. 73-14 5200

Creator:: Dewey, Jerald E., Jenkins, Michael J., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: An evaluation was made in 21 seed production areas and 1 seed orchard in Region 1 to identify the primary insect pests and to assess amount of injury caused. Cones from Douglas-fir, grand fir, western larch, lodgepole pine, ponderosa pine, and western white pine were collected periodically and examined. The...
Resource Type:: Technical Report
Full Text:: • FOREST SERVICE • NORTHERN REGION State & Private Forestry • Missoula, MT 59801 3450 Report No. 79-16

Creator:: McGregor, Mark D., United States. Forest Service. Northern Region. Forest Insect and Disease Management, and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Mountain pine beetle populations reached epidemic level on the Hebgen Lake Ranger District in 1970. Infested area increased from 6,680 acres in 1970 to 78,000 acres in 1977. Buildup ratio of trees killed in 1976 to trees killed in 1977 is 1:8. Approximately 1,700,000 trees, containing 175 MMBF of merchantable...
Resource Type:: Technical Report
Full Text:: USDA • FOREST SERVICE • NORTHERN REGION State & Private Forestry • Missoula, MT 59801 Report No. 78-2

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:: Forest 11 Other Federal, State, and Private Land, ID 11 • SUMMARY Mountain pine beetle

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