Index Catalog // ScholarsArchive@OSU

1. An evaluation of a developing mountain pine beetle infestation in Centennial Valley, Montana, 1979

Creator:: Gibson, Kenneth E., McGregor, Mark D., Bennett, D. D., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: The mountain pine beetle infestation on Bureau of Land Management lands in Centennial Valley has increased from about 500 acres in 1977 to more than 7,000 in 1979. Average number of trees per acre killed has more than quadrupled, increasing from 9.8 in 1977 to 47.8 in 1979. Predictions for...
Resource Type:: Technical Report

2. A demonstration of lodgepole pine management to prevent mountain pine beetle outbreaks, Yaak and Thompson River drainages : progress report

Creator:: McGregor, Mark D. and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report

3. R-1 forest insect and disease damage survey system

Creator:: Bousfield, Wayne E. and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report

4. Progress report on spruce budworm damage in Idaho and Montana, 1978

Creator:: Bousfield, Wayne E. and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report

5. 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

6. Evaluation of mountain pine beetle infestation, Hebgen Lake Ranger District, Gallatin National Forest, Montana, 1978

Creator:: McGregor, Mark D., Bennett, D. D., Meyer, Hubert E., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Mountain pine beetle populations developed to epidemic level in 1970 on the Hebgen Lake Ranger District. Infested acreage increased from 78,000 in 1977 to 79,061 in 1978. More than 4 million trees (238 MMBF) were killed in 1978. Cold temperatures during December 1978 may cause a significant decline in the...
Resource Type:: Technical Report

7. A reevaluation of 1978 aerial Bacillus thuringiensis Berliner (Bt) applications for cankerworm control in Siberian elm shelterbelts

Creator:: Hard, John S. and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: 1. Defoliation by cankerworms in 1979 was significantly less in 1978 treated shelterbelts than in untreated shelterbelts. 2. Most shelterbelts treated in 1978 retained enough foliage by late June 1979 so that adjacent crops were protected from wind. 3. Aerially applied Bt at a rate of 1/2 lb./acre provided shelterbelt...
Resource Type:: Technical Report

8. An evaluation of cone and seed insects in selected seed production areas in Region 1, progress report

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

9. Dwarf mistletoe loss assessment in east side Northern Region national forests

Creator:: Dooling, Oscar J. and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: We conducted a combination road/plot impact survey for dwarf mistletoe in lodgepole pine on six East Side National Forests in 1978. The road survey showed infestation percentages ranging from 28.2 on the Custer to 52.4 on the Beaverhead. The plot survey showed annual cubic foot volume losses ranging from 106M...
Resource Type:: Technical Report

10. Mountain pine beetle infestation potential for the Plains Ranger District, Lolo National Forest

Creator:: Gibson, Kenneth E., United States. Forest Service. Northern Region. Forest Insect and Disease Management, and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: This report contains an overview of the present mountain pine beetle infestation in lodgepole pine stands on Federal, State, and private lands on the Plains Ranger District. Particular emphasis is placed on the potential for beetle mortality in the Thompson River drainage where recent ground surveys show more than 21...
Resource Type:: Technical Report

ScholarsArchive@OSU

1. An evaluation of a developing mountain pine beetle infestation in Centennial Valley, Montana, 1979

2. A demonstration of lodgepole pine management to prevent mountain pine beetle outbreaks, Yaak and Thompson River drainages : progress report

3. R-1 forest insect and disease damage survey system

4. Progress report on spruce budworm damage in Idaho and Montana, 1978

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

6. Evaluation of mountain pine beetle infestation, Hebgen Lake Ranger District, Gallatin National Forest, Montana, 1978

7. A reevaluation of 1978 aerial Bacillus thuringiensis Berliner (Bt) applications for cankerworm control in Siberian elm shelterbelts

8. An evaluation of cone and seed insects in selected seed production areas in Region 1, progress report

9. Dwarf mistletoe loss assessment in east side Northern Region national forests

10. Mountain pine beetle infestation potential for the Plains Ranger District, Lolo National Forest

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1. An evaluation of a developing mountain pine beetle infestation in Centennial Valley, Montana, 1979

2. A demonstration of lodgepole pine management to prevent mountain pine beetle outbreaks, Yaak and Thompson River drainages : progress report

3. R-1 forest insect and disease damage survey system

4. Progress report on spruce budworm damage in Idaho and Montana, 1978

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

6. Evaluation of mountain pine beetle infestation, Hebgen Lake Ranger District, Gallatin National Forest, Montana, 1978

7. A reevaluation of 1978 aerial Bacillus thuringiensis Berliner (Bt) applications for cankerworm control in Siberian elm shelterbelts

8. An evaluation of cone and seed insects in selected seed production areas in Region 1, progress report

9. Dwarf mistletoe loss assessment in east side Northern Region national forests

10. Mountain pine beetle infestation potential for the Plains Ranger District, Lolo National Forest

Limit your search