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Please read BHL's Acknowledgment of Harmful Content
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  1. Publication info: [Washington, D.C.?], U.S. Dept. of Agriculture, Agricultural Research Service, 1994
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Congresses  Control  Helicoverpa  Heliothis  Insect pests  Pesticides  Research  United States  
  2. By: United States. Agricultural Research Service.
    Publication info: [Washington, D.C.?], U.S. Dept. of Agriculture, Agricultural Research Service, [1998]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Congresses  Control  Helicoverpa  Heliothis  Insect pests  Pesticides  Research  United States  
  3. By: United States. Agricultural Research Service.
    Publication info: [Beltsville, Md.?], U.S. Dept. of Agriculture, Agricultural Research Service, 1992
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Congresses  Control  Helicoverpa  Heliothis  Insect pests  Pesticides  Research  United States