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  1. By: United States. Forest Service.
    Publication info: [Portland, Oregon], [United States, Department of Agriculture, Forest Service], [1965?]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Control  Douglas fir tussock moth  Forest insects  Malheur National Forest  Ochoco National Forest  Oregon  
  2. By: Lessard, Gene D. - Raimo, Bernard J. - United States. Forest Service. Rocky Mountain Region. Timber, Forest Pest, and Cooperative Forestry Management. - United States. Forest Service. Rocky Mountain Region. Forest Pest Management.
    Publication info: Lakewood, Colo, Timber, Forest Pest, and Cooperative Forestry Management, Rocky Mountain Region, USDA Forest Service, [1986]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Colorado  Diseases and pests  Douglas fir  Douglas fir tussock moth  Pike National Forest  Ponderosa pine  Trees  
  3. By: Helvey, J. D. - Tiedemann, Arthur R. - Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
    Publication info: Portland, Or, Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, [1978]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Blue Mountains (Or. and Wash.)  Defoliation  Diseases and pests  Douglas fir tussock moth  Environmental aspects  Plant-water relationships  Stream measurements  Trees  Watershed hydrology  
  4. By: Chaney, Ed - United States. Forest Service. Pacific Northwest Region.
    Publication info: Portland, Or, Pacific Northwest Region, USDA, Forest Service, [1981]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Aerial spraying and dusting in forestry  Control  DDT (Insecticide)  Douglas fir tussock moth  Environmental aspects  Environmental monitoring  Northwest, Pacific