Rothschild, Max F.Young, Larry D.Christians, Charles J.Wheat, John D.Biehl, LeroyChrisman, C. LarryRutledge, JackTritschler, Joe2019-09-182019-09-181984-10https://hdl.handle.net/11299/2074471 online resource (PDF, 6 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