Aaron J. Patton, PhD, is a Professor in the Horticulture & Landscape Architecture department at Purdue University and Executive Director of the Midwest Regional Turf Foundation. His research focuses on weed ecology, zoysiagrass, fine fescue, and reducing management inputs across lawn, sod, golf, and sports turf systems.

Quincy D. Law, PhD, is an Assistant Professor of Turfgrass Science in the Department of Horticulture at Iowa State University. His research aims to enhance ecosystem services, improve agronomic programming, and reduce inputs. He co-authored the 5th Edition of this textbook and has presented research to international audiences.

Nick E. Christians, PhD, is an Emeritus University Professor of Iowa State University where he spent 44 years conducting research and teaching turfgrass science. He is the author of more than 1400 published works on turfgrass science and holds prestigious awards for teaching and research.