Christians, Charles J.Arthaud, R. L.Hawton, J. D.2014-12-302014-12-301972https://hdl.handle.net/11299/1688938 pages; includes photographs 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