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Creator:: McGregor, Mark D., Oakes, Robert D., Dooling, Oscar J., and United States. Forest Service. Northern Region. Cooperative Forestry & Pest Management
Abstract:: Douglas-fir beetle has increased to epidemic levels in mature-overmature Douglas-fir that has been top killed by western spruce budworm. About 42 trees per acre have been killed in an area at Lyon's Face and 36 trees per acre in other areas along the Madison River during the past 3 years....
Resource Type:: Technical Report
Full Text:: . D. Oakes, and O. J. Doolin e/ PRONG BINDER ABSTRACT Douglas-fir beetle has increased to

Creator:: Dooling, Oscar J., Wiegand, Robert, 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 project is $0.50/acre. Benefit/cost ratio is 1.01/1....
Resource Type:: Technical Report
Full Text:: of in- sect and disease funds for the project. Because control will be by felling or girdling

Creator:: Dooling, Oscar J. and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Residual Douglas-fir are dwarf mistletoe-infested and pose a threat to regeneration. Felling of these residuals will reduce dwarf mistletoe intensity and increase future volume yields. The benefit/cost ratio at 4 percent for the current rotation is 0.51/1 on the Sula RD and 0.45/1 on the Darby RD (both negative ratios)....
Resource Type:: Technical Report
Full Text:: 3450 April 1981• • • EVALUATION OF DWARF MISTLETOE CONTROL PROJECTS SULA AND DARBY RANGER

Creator:: Dooling, Oscar J., Byler, James W., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Residual Douglas-fir left after harvesting are dwarf mistletoe-infected and pose a threat to regeneration. Felling of residuals, coupled with planned slash disposal and thinning, will effectively reduce dwarf mistletoe intensity and increase future volume yields. The benefit/cost ratio based on timber values only, for the current rotation, is 0.041/1 at...
Resource Type:: Technical Report
Full Text:: Douglas-fir left after harvesting are dwarf mistletoe-infected and pose a threat to regeneration. Felling

Creator:: Dooling, Oscar J. and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Residual Douglas-fir 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 negative,...
Resource Type:: Technical Report
Full Text:: • Dwarf mistletoe is responsible for the most serious disease losses in the Douglas-fir forests of western

Creator:: Dooling, Oscar J. and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Residual Douglas-fir left after harvesting are dwarf mistletoe infected and pose a threat' to regeneration in some units. Removal of residuals, coupled with planned or completed site preparation and thinnings, will effectively reduce dwarf mistletoe incidence and increase future volume yields. The benefit/cost ratio based on timber values alone is...
Resource Type:: Technical Report
Full Text:: Forest. AREA 'DESCRIPTION AND PROPOSED TREATMENT Location s hown. in proposed control area. is shown

Creator:: Dooling, Oscar J. and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: menziesii (Beissn.) Franco; and subalpine fir, Abies Zasiocarpa (Hook.) Nutt. Type of damage.--Both causal

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