Oelke, E. A.Durgan, B. R.Simmons, S. R.Rehm, G. W.Bissonnette, H. L.Noetzel, D. M.Cloud, H. A.Benson, F. J.2019-09-182019-09-181986https://hdl.handle.net/11299/2074671 online resource (PDF, 4 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