• Dale Shaner and Phil Westra 

        Author(s):Cotton, William A.
        Date:2002-10-02
        Format:born digital; digital photographs
        Dale Shaner and Phil Westra apply herbicides in a spray chamber at the Colorado State University Weed Laboratory, October 8, 2002.
      • Phil Westra 

        Author(s):Cotton, William A.
        Date:2002-10-02
        Format:born digital; digital photographs
        Phil Westra trims and measures plants at the Colorado State University Weed Laboratory, October 8, 2002.