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Creator:: Franc, G. C., Underwood, P. W., Dewey, Jerald E., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: -72-4 5200 July 1972 • • A WESTERN SPRUCE BUDWORM IMPACT SURVEY ON THE CLEARWATER NATIONAL FOREST

Creator:: Bousfield, Wayne E., Franc, G. C., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: OF WESTERN SPRUCE BUDWORM DAMAGE AREAS ON THE CLEARWATER NATIONAL FOREST IDAHO 1978 By Wayne E

Creator:: Gast, Sandy and United States. Forest Service. Northern Region
Resource Type:: Technical Report
Full Text:: . Williams. 1977. Impact of spruce budworm on the Nez Pate National Forest, Idaho, it 1976. USDA For. Serv

Creator:: Bousfield, Wayne E., Ward, James D., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: Vfi gh, 4 caused 23,000 acres of aerially visible defoliatt qp11 the Nezi ce National Forest and

Creator:: Ciesla, William M., Lood, Rudolph C., Bousfield, Wayne E., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Aerial surveys of the Nezperce National Forest in Idaho revealed 138,692 acres of aerially visible top kill and tree mortality due to repeated defoliation by western spruce budworm, Choristoneura occidentalis Freeman. A small ground sample indicates that up to 47 percent of the grand fir volume was affected by top...
Resource Type:: Technical Report
Full Text:: Nezperce National Forest in north central Idaho in 1965 and soon caused extensive defolia- tion over large

Creator:: Dooling, Oscar J., Underwood, Stanley K., and United States. Forest Service. Northern Region. Cooperative Forestry & Pest Management
Abstract:: Residual Douglas-fir and lodgepole pine are dwarf mistletoe-infested and pose a threat to existing regeneration. Felling or girdling these residuals, along with sanitation/thinning of dense patches of regeneration, will reduce dwarf mistletoe intensity and increase future volume yields. Present net worth of the projects ranges from -$1 to $39 per...
Resource Type:: Technical Report
Full Text:: PROJECTS, WEST FORK RANGER DISTRICT, BITTERROOT NATIONAL FOREST MONTANA NP by Oscar J. Dooling J and

Creator:: Hamel, Dennis R., United States. Forest Service. Northern Region. Forest Environmental Protection, and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Mountain pine beetle infestations in the Snell Creek and Warland Peak areas were evaluated in October 1975. Based on current buildup ratios, tree diameter distributions, stand composition and phloem thicknesses, there appears to be limited opportunity for epidemic potential in either area. Management alternatives are discussed. Selective logging is recommended...
Resource Type:: Technical Report
Full Text:: ., infestations in the Snell Creek and Warland Peak areas, Fisher River District, Kootenai National Forest (Figure

Creator:: Tunnock, Scott and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: An attempt was made in January 1971 to relate the numbers of hibernating western spruce budworm larvae on a square foot of bark surface with subsequent shoot damage on Douglas-fir and grand fir in northern Idaho. Twenty-six plots sampled in January were also sampled in April to determine if larval...
Resource Type:: Technical Report
Full Text:: Douglas-fir trees on the Powell Ranger District, Clearwater National Forest, Idaho. U.S. Department of

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:: NATIONAL FOREST, IDAHO by • R. L. James, Plant Pathologist and and • C. A. Stewart, Biological

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:: using a Tektronixe desk-top microprocessor at Forest Insect and Disease Management/Methods Application

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