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 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

3. 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

4. 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

5. A pilot survey to measure annual mortality caused by the mountain pine beetle in lodgepole pine on the Beaverhead and Gallatin National Forests, 1978

Creator:: Bennett, D. D., Bousfield, Wayne E., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: A multistage sampling survey to measure annual and cumulative mortality of lodgepole pine by mountain pine beetle was conducted on the Beaverhead and Gallatin National Forests, 1978-79. The survey area, 270,000 acres, was stratified into three intensity classes from aerial sketchmapping. This was followed by large scale (1:6,000) aerial photography,...
Resource Type:: Technical Report

6. 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

7. 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

8. 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

9. 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

10. 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

ScholarsArchive@OSU

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

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

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

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

5. A pilot survey to measure annual mortality caused by the mountain pine beetle in lodgepole pine on the Beaverhead and Gallatin National Forests, 1978

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

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

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

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

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

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

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

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

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

5. A pilot survey to measure annual mortality caused by the mountain pine beetle in lodgepole pine on the Beaverhead and Gallatin National Forests, 1978

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

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

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

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

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

Limit your search