Jones, J. R.Rea, J. C.Johnson, L. J.Heeney, MarvinTribble, LelandMoyer, Wendell2019-09-182019-09-181989https://hdl.handle.net/11299/2072981 online resource (PDF, 8 pages)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.enReport