Muehling, Arthur J.Hall, Marvin D.Phillips, Richard E.Reeder, Randall C.Spillman, Charles K.Benteman, ArlenMurley, HarlenPaus, ArtWilson, Larry2019-09-182019-09-181983https://hdl.handle.net/11299/2074331 online resource (PDF, 7 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