Bill Kreuser, Ph.D., is an extension specialist and assistant professor at the University of Nebraska-Lincoln. He earned his bachelor’s and master’s degrees at University of Wisconsin-Madison and his Ph.D. at Cornell University. Kreuser’s research focuses on winter desiccation and spring green-up, iron layer formation in sand putting greens, and nitrogen fertilization management. His appointment at UNL is 60% extension, 40% research. Kreuser worked as research manager at UW-Madison where he developed a GDD model to apply PGRs. During his time at Cornell, he also worked as a spray technician at the Robert Trent Jones Golf course. Kreuser has been a GCSAA faculty member since 2013, teaching both seminars and webinars.