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Creator:: Dewey, Jerald E., Jenkins, Michael J., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Insect damage was extensive to Douglas-fir, ponderosa pine, western white pine, and western larch cones at most seed production areas surveyed in 1979. From 70 to 100 percent of the cones from several collecting periods were injured. Moderate damage (40-70 percent of cones injured) occurred to Douglas-fir, ponderosa pine, western...
Resource Type:: Technical Report
Full Text:: ; Graduate Student, Utah State University, Logan, Utah. United States Department of Agriculture Forest

Creator:: Rice, John Leslie, Hard, John S., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: Northern State & P.Q. Box 7669 Department of Service Region Private Missoula, Montana Agriculture

Creator:: Bousfield, Wayne E. and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: In spruce budworm damaged areas, height growth loss can be a major factor in stand development. This survey was confined to top-killed trees. Estimates on height growth loss or nontop-killed trees was not attempted. Although spruce did not have as high a percentage of trees top-killed as the true firs,...
Resource Type:: Technical Report
Full Text:: of Agriculture Forest Service Northern Region State & Private Forestry P.O. Box 7669 Missoula

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:: Assistant, respectively. United States Department of Agriculture Forest Service Northern Region State

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
Full Text:: • FOREST SERVICE • NORTHERN REGION State & Private Forestry • Missoula, MT 59801 3450 Report No. 79-16

Creator:: Flavell, Thomas H. and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: USDA • FOREST SERVICE • NORTHERN REGION State & Private Forestry • Missoula, MT 59801 Report No. 78

Creator:: Bousfield, Wayne E. and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: ' F.‘A‘e' JP State & Private Forestry • Missoula, MT 5 131 1,re'?•.`t„ 1 cv 0i3 ' t4 SI• t 1

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
Full Text:: SERVICE • NORTHERN REGION State & Private Forestry • Missoula, MT 59801 3450 November 1979Report No. 79

Creator:: Dooling, Oscar J. and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: • FOREST SERVICE • NORTHERN REGION State & Private Forestry • Missoula, MT 59801 Report No. 78-15 5200

Creator:: Bousfield, Wayne E., Franc, G. C., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: SERVICE • NORTHERN REGION State & Private Forestry • Missoula, MT 59801 3450 April 1979 REMEASUREMENT

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