Professor, Forest Extension, Physiology
PhD, Physiological Ecology, 1964, University of Missouri; MS, Tree Physiology, 1961, University of Missouri;
BS, 1959, University of Missouri
Contact Information
Michigan State University
East Lansing, MI 48824
Phone: (517) 355-0096
Fax: (517) 432-1143
Email: koelling@msu.edu
Research Interests
Biological and economic aspects of Christmas tree production; Christmas tree marketing and market trends; evaluation of alternative species especially Abies sp. for Christmas tree production.
Programs and Grants
- Evaluation of true firs (Abies sp.) for Christmas tree production
- Soil fertility management for Fraser fir
- Environmental implications of Christmas tree producation.
Outlying Property Manager
- Upper Peninsula Tree Improvement Center (UPTIC)
- WK Kellogg Forest
- Fred Russ Forest
- Jim Wells Forest
- Dunbar Experimental Forest
- Tree Research Center (TRC)
- Latest GIS Layouts for Outlying Properties
Selected Publications
Koelling, M. R., 1991. "Environmental Concerns and Christmas Tree Producers. Michigan Christmas Tree Journal 33(2):11, 17, 18, and 48.
Koelling, M. R., 1992. "A Ten-Year Michigan Christmas Tree Grower Survey." American Christmas Tree Journal 36(3):19-25.
Koelling, M. R., 1998. "Christmas Trees Do Not Cause Fires - Some Facts!", American Christmas Tree Journal, 42(4):4-21.
Koelling, M. R., 2001. "Fertilization Recommendations For Fraser Fir - Part I: Before Planting", Michigan Christmas Tree Journal 48(4):5-9.
Koelling, M. R., 2002. "Fertilization Recommendations For Fraser Fir - Part II: Established Plantings", Michigan Christmas Tree Journal, 49 (1): 5-8.