Larsen, Dayton M.Miles, William R.Smith, Marvin E.2014-12-302014-12-301968https://hdl.handle.net/11299/16888414 pages; includes photographs, map and drawings. This archival publication may not reflect current scientific knowledge or recommendations. Current information available from the University of Minnesota Extension: https://www.extension.umn.edu.en-USNewsletter or Bulletin