Jan MichaelPlant and Soil Sciences Teaching Greenhouses

Research Technician
Supervisor: Dr. Donald Penner

A472 Plant and Soil Sciences Building
Department of Plant, Soil and Microbial Sciences
Michigan State University
East Lansing, MI 48824-1325
Phone: (517) 355-0271 ext. 228
Fax: (517) 353-5174


M.S., Iowa State University
B.S., University of Illinois

Research Interests

Weed biology and ecology.

Adjuvants: Effects on herbicide performance.

Selected Recent Publications

Penner D. and J. Michael. 2014.  Water conditioners and growth regulator herbicides.  JAI 10:ASTM STP 1579.  pp. 1-8.

Penner, D. and J. Michael.  2014.  A bioassay for evaluating herbicide volatility from soils and plants.  JAI 9:ASTM STP1569. pp. 36-43.

Penner, D., R. Coleman, and J. Michael. 2011. Novel formulations of an organic acid herbicide. Pesticide Formulations and Delivery Systems.  31st Volume, ASTM STP 1537, B. Devisetty, ed. ASTM International, West Conshohocken, PA. pp. 63-71.

Penner, D., R. Coleman, and J. Michael. 2011. Adjuvants and formulations of an organic acid herbicide.  JAI 8:1-5.

Penner, D. and J. Michael. 2011. Spray solution pH and glyphosate actitivity. Pesticide Formulations and Delivery Systems. 30th Volume, ASTM STP 1527, A.D. Lindsay and R. Zollinger, eds. ASTM International, West Conshohocken, PA, pp. 129-136.

Penner, D. and J. Michael. 2010. The effect of pH on glyphosate activity and water conditioning. JAI 7:JAI102770 pp. 1-6.


Bernards, M.L., D. Penner and J. Michael. 2009. Imazapyr absorption and translocation in Northern red oak and red maple as affected by herbicide formulation and adjuvant methylated seed oil.  JAI 6:1-10.