@ThatWeedsDoc

Extension Forage and Hort Crop Weed Specialist at the University of Tennessee

 Knoxville, TN
Joined May 2016
  • Tweets447
  • Following596
  • Followers596
Cold temps this week have us thinking about winterkill. You can test for winterkill by pulling plugs and growing them out in a warm, well-lit spot. Winterkill also affects how we approach spring herbicide applications…. (1/2)
NWS Little Rock
@NWSLittleRock6 Jan 2025
Temperatures will warm up today, but it will remain awfully cold across the state. Look for highs to only top out in the 20s to near 40° this afternoon. #arwx
A map of Arkansas that shows today's highs.

ALT A map of Arkansas that shows today's highs.

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Hannah Wright-Smith retweeted
Greg Breeden@gbreeden116 Sep 2025
Saw the 1st new Poa seedlings of the fall of 2025 at ETREC in Knoxville this AM.
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Hannah Wright-Smith retweeted
Navdeep Godara@godara_nav5 Aug 2025
We initiated our first study with @ecorobotix ALBA @NCState. ALBA sprayed smooth crabgrass with 100% accuracy in bermudagrass fairway and reduced the herbicide usage by ~95% compared to broadcast treatments. Learn more about this technology at the Turfgrass Field Day on August 13
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Well done! @sarah_paschal1
Mike Richardson
@ArkansasTurf31 Jul 2025
congrats to @sarah_paschal1 on defending her thesis!! Very proud of you!!
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Hannah Wright-Smith retweeted
USGA Green Section
@USGAGrnSection26 Jul 2025
Goosegrass has been a challenge for many courses this year. We worked with @RUturfweeds @UTTurfWeeds and @VTTurfweeds to create a comprehensive guide that covers all the cultural and chemical options for controlling this stubborn weed in both cool- and warm-season turf 👇

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Hannah Wright-Smith retweeted
Wendell Hutchens@HutchensWendell21 Jul 2025
Great disease pressure this year at the research farm. Come check out our disease trials and much more at the upcoming Arkansas Turfgrass Field Day on August 6th! Register here: uada.formstack.com/forms/tur…
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Hannah Wright-Smith retweeted
Navdeep Godara@godara_nav20 Jun 2025
I have two graduate research assistantships opening in the Turfgrass and Forage Weed Science Lab at North Carolina State University. If the outlined projects in description interest you to pursue an MS or PhD degree in Weed Science, consider applying.
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Hannah Wright-Smith retweeted
Jim Brosnan, Ph.D.@UTTurfWeeds28 May 2025
The next installment of our #PoaAnnua video series is available on the @UTturfgrass YouTube channel. This episode highlights indaziflam mixture concepts for #PoaAnnua control on fairways. Check it out @utextension @TennesseeGCSA @TnTurfAssoc youtu.be/ECAnqskL8Zc?si=PzLR…

Indaziflam Mixture Concepts for Poa annua Control

This video presents results of research evaluating several herbicid...

youtube.com
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Hannah Wright-Smith retweeted
Wendell Hutchens@HutchensWendell13 May 2025
The University of Arkansas Turfgrass Field Day is scheduled for August 6th. Pre-registration is open. We hope to see you there! uada.formstack.com/forms/tur…
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Plots in Fayetteville starting to pop!
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Hannah Wright-Smith retweeted
Jim Brosnan, Ph.D.@UTTurfWeeds2 May 2025
The first installment of our new #PoaAnnua video series is live on the @UTturfgrass YouTube channel. This video focuses on treatments applied this season for control in overseeded ryegrass. Check it out @utextension @TennesseeGCSA @TnTurfAssoc @TVSFMA youtu.be/xyUeoARtj2g?si=P1q9…

Controlling Poa annua in Overseeded Ryegrass Fairways

This video presents field research conducted at the University of T...

youtube.com
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I am proud to do research that helps put beans like this on store shelves, in freezer sections, and in the fresh produce aisle. Maybe it’s ridiculous, but I’m happy to play a small part in ensuring that produce is available to as many people as possible.
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Crabgrass spotted in Fayetteville yesterday
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Hannah Wright-Smith retweeted
Jim Brosnan, Ph.D.@UTTurfWeeds15 Apr 2025
New videos featuring #PoaAnnua research conducted in 2024-2025 will hit the @UTturfgrass YouTube channel over the next few weeks. Major thanks to Anna Duncan with @utextension @UTPlantSciences for all her production work. Check them out @TennesseeGCSA @TnTurfAssoc @TVSFMA
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Do you manage forage in #Arkansas? The updated #forage #herbicide guide is out! bit.ly/MP557-Updated-25
Screenshot of publication

ALT Screenshot of publication

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Hannah Wright-Smith retweeted
Frank Scott, Jr.@FrankScottJr2 Apr 2025
Because of the threat of severe weather today, the weekly test of the City of Little Rock's emergency warning sirens will not be conducted today at noon. Any sirens today will be an indicator of a tornado warning within the Little Rock City limits.#LRWx
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Hannah Wright-Smith retweeted
Wendell Hutchens@HutchensWendell18 Mar 2025
Mowing height influencing large patch severity on zoysiagrass.
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Not worried about Chap GPT taking weed science jobs any time soon…
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Hannah Wright-Smith retweeted
Wendell Hutchens@HutchensWendell26 Feb 2025
Annual bluegrass having fun in dormant bermudagrass mown low and not treated with pre-emerge herbicides. ⁦@ThatWeedsDoc⁩ ⁦@ArkansasTurf⁩ ⁦⁦@samTURFkreinbrg⁩
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Hannah Wright-Smith retweeted
GCSA of Arkansas@GolfSupersofAR6 Feb 2025
Cold and Rainy on Monday so no excuse not to come bowling with us! Don't forget to RSVP for Main Event on 2/10. @ThatWeedsDoc is going to be our education provider! gcsaofarkansas.org
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Great job @samTURFkreinbrg and David! @AginArk @UarkTurf @HutchensWendell @ArkansasTurf @AR_Extension
uarkhorticulture@uarkhort30 Jan 2025
Big week recently at the Southern Weed Science Society! 🌱 Dr. Hannah Wright Smith, grad student Sam Kreinberg & program associate David Nistler represented us well—Sam placed 2nd in his MS oral presentation! 👏🎉 Congrats to the whole team! #TurfScience #agfoodlife #horticulture
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