Turf Management Researcher, Educator & Consultant | Inventor of GreenKeeper App | Former UNL professor, extension specialist & golf course superintendent.
Lincoln, NE
Joined October 2010
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Bill Kreuser, PhD retweeted
Place. Pair. Measure.
Watch GreenKeeper Q measure putting green speed on a slope. No need to find a level area. Just repeatable, objective measurements controlled from your phone.
Read last week's blog to learn how the technology works.
Pre-orders are moving fast. Reserve yours today: GreenKeeperApp.com/Q
Read more about the GreenKeeper Q: greenkeeperapp.com/marketing…
#GreenKeeperApp
How can GreenKeeper Q estimate pin fairness?
Learn how Q measures greens performance with 60+ sets of measurements per second as it travels around the greens.
View our latest blog about it:
greenkeeperapp.com/marketing…
Introducing the next revolution of putting greens performance testing.
Green speed. Slope. Leaf firmness and putt trueness. All measured with GreenKeeper Q.
Is that pin location fair? How does green speed change across an entire green? Q knows.
Pre-order yours today!
Meet GreenKeeper Q: a robotic ball that measures greens performance.
Green speed in feet, on any slope. New canopy firmness metric. Green trueness & pin fairness testing as Q moves across the surface. Controlled by GreenKeeper App.
Cue up something new.
greenkeeperapp.com/q
Bill Kreuser, PhD retweeted
This moisture is setting us up for a wet week ahead across the Corn Belt.
.@NOAA's #GOESWest (#GOES18) 🛰️ has been monitoring monsoonal moisture streaming into the Southwest via its water vapor channel.
#Flood Advisories and Watches as well as #FlashFlood Warnings are in effect throughout the region—particularly southeastern New Mexico, western Texas and the Oklahoma Panhandle.
Latest updates: weather.gov
A friend asked how much surface OM can changed in one year. He asked an AI-bot, but its answer was an unsupport guess.
We then posed the question to GreenKeeper App, and we found it depend on the starting point.
Is 2x/yr aeration + regular topressing too much? Find out here.
How much can surface organic matter change in a year?
That depends where it starts. The same cultivation and sand topdressing program can produce very different trajectories.
Measure surface OM this fall and start down a path of success in 2027.
greenkeeperapp.com/marketing…
Bill Kreuser, PhD retweeted
A potentially historic El Niño is developing in the Pacific Ocean.
Milder winter in the North. Cool, wet and cloudy stress in the South. Drier conditions in other parts of the world.
Is your turf prepared?
greenkeeperapp.com/marketing…
Bill Kreuser, PhD retweeted
“How much grass was in the buckets?”
Nearly 500,000 #ClipVol measurements are helping us answer that question—from seasonal and regional growth patterns to nutrient removal and weather response.
The new GreenKeeper Growth Series starts here: greenkeeperapp.com/marketing…
Bill Kreuser, PhD retweeted
It's looking warm, but seasonable this week with highs in the mid 80s to lower 90s. Some higher end heat looks like it will return by next week, with signs of temperatures exceeding 100 some days.
ALT Map showing the temperature outlook for July 13-19. Nearly the entire forecast area has at least a 60% chance of seeing above average temperatures over that time period.
The past weekend weather was warm, wet and cloudy. The end result: bacterial etiolation on the backyard research green.
Starting wetting agent longevity research next week. Do repeated applications of a wetting agent shorten product efficacy? Stay tuned.
Turf and agronomy researchers, I'm looking for your help!
Would you imagine an difference in changing from CO2 powered sprayers to air compressor or electric pump driven sprayers for small plot research?
An air compressor or electric pump to apply PGR and wetting agents would be easy, but wouldn't have the potential acidifying effects of the CO2 propellant. Thanks!
Bill Kreuser, PhD retweeted
A completely new WhiteBoard experience is coming to GreenKeeper next week.
Rebuilt from the ground up with a modern interface, intelligent planning tools, and unmatched flexibility for daily turf operations.
Try the interactive tutorial now:
greenkeeperapp.com/whiteboar…
Long-term wetting agent degradation/efficacy study goes live in a month. Getting the height down on the Pure Distinction sod from Green Valley Turf. It is starting knit together despite tons of topdressing this spring. Their low mow KBG sod is awesome, too.
Bill Kreuser, PhD retweeted
Poa annua is a persistent weed in turfgrass systems. Effective control combines pre- and post-emergent chemical options and nonchemical management strategies, based on the system and circumstances.
Learn more in this management guide: doi.org/10.1002/cft2.70092
ALT Title: Chemical control strategies for Poa annua in managed turfgrass systems. Table showing modes of action for different herbicides, approved use in cool- and warm-season turf, risk of resistance, and comments. Authors are listed above the Crop, Forage & Turfgrass Management, ASA, and CSSA logos.
First mow of the new wetting agent research green sod (0.200"). Still lots of sand topdressing to go. Hope to fire up the drip system for the first time this weekend.
@GreenKeeperApp is following the Proxy/PGR timing. It's interesting to watch the window move north over the past seven days and see where we'll be in 8 days. Follow up Proxy with a second app 200 GDD after the first for best control.
We're working with Penn State's @StrawTurf and his grad students at to validate our new approach to sensor interpretation.
Pic 1: A cool looking fairway scan that doesn't mean much.
Pic 2: Scouting reports of acceptable/unacceptable turf.
Slide 3: Now the map means something.
@GreenKeeperApp Insight trains on those scouting reports to translate raw data into the probability of acceptable turf.
greenkeeperapp.com/marketing…
Bill Kreuser, PhD retweeted
Getting geared up for a fairway unit demo of the recon X sensor on the @GreenKeeperApp 👍
Bill Kreuser, PhD retweeted
About to steward a handful of demos in SWFL. Look forward to seeing how the system helps with decision making!
Most sensor maps show variation. Few tell you whether it matters.
My new blog -> How GreenKeeper uses simple scouting and probability to make that distinction. No algorithm built somewhere else knows what acceptable looks like on your course. You do.
greenkeeperapp.com/marketing…
GreenKeeper is thrilled to support the UT Turf Team's effort with Mobile Weed Manual. It's a lot of work to maintain for them to maintain each year and an amazing free resource you should check out. It also is available in the app stores - a first for @GreenKeeperApp.
Thanks to generous support from
@GreenKeeperApp, I’m proud to announce that Mobile Weed Manual has been updated for 2026. This free, research-based resource is now available on all platforms. Excited to collaborate w/ @PGRBill & team to keep this tool available for managers
Most sensor maps show variation. Few tell you whether it matters.
My new blog -> How GreenKeeper uses simple scouting and probability to make that distinction. No algorithm built somewhere else knows what acceptable looks like on your course. You do.
greenkeeperapp.com/marketing…