This work is licensed under the Creative Commons Attribution-NonCommercial- 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc/4.0/. You are free to copy and redistribute the material contained in this work under the following terms:
- You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- You may not use the material for commercial purposes.
The information in this work is true and complete to the best of our knowledge. All recommendations are made without guarantee on the part of the authors or the University of Minnesota. The authors and publisher disclaim any liability in connection with the use of this information. For additional information, please contact:
Department of Horticultural Science
1970 Folwell Ave
Saint Paul, Minnesota 55108
© Copyright 2020 Diane M Narem and Mary Hockenberry Meyer