Reneau, J. K.Appleman, R. D.Steuernagel, G. R.Mudge, J. W.2019-09-182019-09-181983https://hdl.handle.net/11299/2072711 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