Goetsch, Warren D.Jacobson, LarryReeder, RandallStombaugh, DennisCollins, Eldridge, Jr.Johnson, DexterPhillips, RichardRogers, HaroldRogers, DeanShelton, David2019-09-182019-09-18http://hdl.handle.net/11299/2074581 online resource (PDF, 12 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