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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Kegley, Sandy. - Sturdevant, Nancy J. - United States. Forest Service. Northern Region.
    Publication info: Coeur d'Alene, ID, U.S. Dept. of Agriculture, Forest Service, Northern Region, [200-?]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Beneficial insects  Biological control  Biological pest control agents  Knapweeds  
  2. By: Wilson, Linda M. - Randall, Carol Bell. - United States. Forest Health Technology Enterprise Team.
    Publication info: Morgantown, WV, U.S. Dept. of Agriculture, Forest Service, Forest Health Technology Enterprise Team, [2002]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Biological control  Knapweeds  Weeds  
  3. By: United States. Forest Service. Intermountain Region.
    Publication info: Ogden, Utah, U.S. Dept. of Agriculture, Forest Service, Intermountain Region, [2003]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Biological control  Camas County  Idaho  Knapweeds  Weeds  
  4. By: Winston, Rachel - Wilson, Linda M. - Randall, Carol Bell. - United States. Forest Health Technology Enterprise Team.
    Edition: 2010 Rev.
    Publication info: Morgantown, WV, U.S. Dept. of Agriculture, Forest Service, FHTET, [2010]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Biological control  Knapweeds  Weeds