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Creator:: Hamel, Dennis R., McGregor, Mark D., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: An infestation of a defoliating weevil, Magdalis gentilis LeConte, was reported in July by Hank Manning, Judith Ranger District forester, Lewis and Clark National Forest. The infestation occurs in precommercially thinned stands of lodgepole pine, Pinus contorta var./atifblia Engelm. in the Moose Creek drainage. Although damages caused by M. gentilis...
Resource Type:: Technical Report
Full Text:: October 1974 EVALUATION OF A WEEVIL INFESTATION IN THINNED LODGEPOLE PINE STANDS • LEWIS AND CLARK

Creator:: Williams, Ralph E. and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: The pine needle cast fungus, Lophodermella concolor, caused severe discoloration and subsequent defoliation of lodgepole pine on over 4,000 acres and light defoliation on over 4,500 acres of lodgepole pine in the lower Clark Fork River drainage in 1975. Some trees had lost the last 3 years' growth of needles,...
Resource Type:: Technical Report
Full Text:: Clark Fork River and major side drainages were aerially surveyed for lodgepole pine discoloration from a

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:: / Current net stumpage value on the Lewis & Clark National Forest. By applying a 10 percent discount rate

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:: ' N. 4, A NSnA` ev CI-- ',''' t cea cri .,N4,,e 4-k 41 USDA • FOREST SERVICE • NORTHERN REGI

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:: showed a de- cline in the acreage of aerially visible defoliation. In northern Idaho, the defoliated area

Creator:: Ciesla, William M. and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: July 1973 A PINE SAWFLY OUTBREAK ON THE KOOTENAI NATIONAL FOREST, MONTANA by W. M. Ciesla

Creator:: Bennett, D. D., McGregor, Mark D., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: lilt Forest Insect & Disease Management Report No. 80-16 A

Creator:: Hagle, Susan K., Johnson, Terri L., Stipe, Lawrence E., Schwandt, John W., Byler, James W., Kegley, Sandra J., Bell Randall, Carol S., Taylor, Jane E., Lockman, I. Blakey, Sturdevant, Nancy J., Williams, Stephen B., Marsden, Michael A., Lewis, Lowell G., United States. Forest Health Protection, and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: Team Michael A. Marsden Autometric Service Company Lowell G. Lewis INTECS International, Inc

Creator:: Bennett, D. D. and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: Young 1977). The survey was designed to entail a randomized multistage sam- pling system initially

Creator:: Carlson, Clinton E., Meyer, Hubert E., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: accepted explanation is as follows: During a very cold period when temperatures are much below zero degrees

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