GDDs for Timing PGR Applications

Erik Ervin, Ph.D.

Details in this webcast taught by Erik Ervin, Ph.D., can help you make the most of your chemical budget dollars. Research from Virginia Tech and University of Wisconsin on the use of growing degree days (GDDs) for precise scheduling of plant growth regulator (PGR) applications on cool-season putting greens and bermudagrass fairways will be reviewed. Particular attention will be paid to timing for Poa seedhead suppression in the spring and consistent clipping yield suppression in the summer. The role of DMI fungicides in Poa seedhead suppression programs will also be discussed.

Original presentation date: Dec. 6, 2011

About the instructor

Erik Ervin, Ph.D., is a professor of crop and soil environmental sciences at Virginia Tech. He earned his bachelor of science degree from Iowa State University and his master of science and doctorate from Colorado State University. Ervin’s research focuses on turfgrass adaptations to stresses such as heat, cold and drought, as well as cultural practices to manage stress, including biostimulants and PGRs. His university appointment includes 40% teaching and 60% research. He has been a GCSAA faculty member since 2009 and has also lectured on various turfgrass subjects in China.


Member price: Free
Non-member price: $60
Chapter price: $100
Education points: 0.2

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