by Bill Kreuser | Nov 3, 2021 | Uncategorized
For nearly 15 years, Dr. Doug Soldat and I have been creating growing degree day (GDD) models for plant growth regulators (PGRs) and now DMI fungicides. These sinewave shaped models predict how these routinely applied products affect the relative growth rate of...
by Bill Kreuser | Sep 16, 2021 | Uncategorized
Fall weather is coming, and that should bring changes to your plant growth regulator applications. For over a decade, we’ve known that PGRs – and even DMI fungicides – produce longer growth suppression during cooler weather. This is why we use...
by Bill Kreuser | Jun 17, 2021 | Uncategorized
Doug Soldat and I have been developing PGR growing degree day (GDD) models since 2008. These models have helped turfgrass managers understand how clipping yield – a.k.a. ClipVol – is affected by a single PGR application. They also provide golf course...
by Bill Kreuser | Apr 21, 2021 | Uncategorized
Managing soil organic matter (SOM) is a primary concern for turfgrass managers. Unfortunately, changes in SOM through cultivation happen over the course of months and years. This makes it difficult for managers to know if they are on the right track to achieve their...
by Bill Kreuser | Oct 27, 2020 | Uncategorized
I received an interesting question following a plant growth regulator (PGR) programming webinar. The webinar covered introductory PGR topics including: PGR degradation and removal, prediction of PGR performance with growing degree day (GDD) models, and clipping volume...
