dcsimg
Please read BHL's Acknowledgment of Harmful Content
Sort By:
  1. By: Whittle, K. - United States. Animal and Plant Health Inspection Service. Plant Protection and Quarantine Programs.
    Publication info: [Hyattsville, MD], United States Department of Agriculture, Animal and Plant Health Inspection Service, Plant Protection and Quarantine, September 1985
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Diseases and pests  Fruit  Tortrix
  2. By: Holsten, Edward H. - United States. Forest Service.
    Publication info: [Washington, D.C.?], U.S. Dept. of Agriculture, [1988]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Alaska  Aspen  Caterpillars  Diseases  Diseases and pests  Tortrix