Tác giả: Martin E. Rice

Dan Undersander is an extension agronomist in forages for the University of Wisconsin. Dennis Cosgrove is an extension agronomist in forages for the University of Wisconsin. Eileen Cullen is an extension entomologist for the University of Wisconsin. Craig Grau is an extension plant pathologist for the University of Wisconsin. Marlin E. Rice is an extension entomologist for Iowa State University. Mark Renz is an extension agronomist in weed control for the University of Wisconsin. Craig Schaeffer is a research agronomist for the University of Minnesota. Glen Shawmaker is an extension agronomist for the University of Idaho. Mark Sulc is an extenstion agronomist for The Ohio State University.