Bert Cregg, Robert Schutzki, and Roy Prentice

Bert Cregg is associate professor, Plant & Soil Sciences, Michigan State University, cregg@msu.edu; Robert Schutzki is associate professor, Plant & Soil Sciences, Michigan State University, schutzki@msu.edu; and Roy Prentice is farm manager at Tollgate Education Center, prentic1@msu.edu.