Allred, EvanHalsey, CliftonMachmeier, RogerMiles, WilliamStrand, Oliver2019-05-112019-05-111974https://hdl.handle.net/11299/202841This archival publication may not reflect current scientific knowledge or recommendations. Current information available from the University of Minnesota Extension: https://www.extension.umn.edu.enMinnesota natural resources: elementary teaching guideReport