Faculty Directory

Thomas Butts

Thomas Butts

Assistant Professor

Extension Weed Scientist

(DREX)-Director Experiment Station

(CSES)-Crop, Soil and Environmental Sciences

Phone: 479-575-2354

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Research Emphasis:

My research and Extension efforts focus on identifying novel weed management strategies for Arkansas rice and soybean cropping systems through diversified approaches. These strategies include the utilization of cultural, mechanical, and chemical practices used in a holistic system for weed management. The overall goal is to provide sound, effective, and applicable weed management practices to Arkansas and Mid-South rice and soybean growers battling complex weed problems in their fields. Additionally, a primary focus is placed on identifying the impact of precision agriculture and application technologies on weed management as these tools continue to grow in popularity. Further emphasis is placed on helping to increase herbicide application knowledge, safety, and effectiveness, both from ground-based and aerial applications.

  • Ph.D., University of Nebraska-Lincoln (2018), Agronomy-Weed Science
  • M.S., University of Wisconsin-Madison (2015), Agronomy-Weed Science
  • B.S., University of Wisconsin-Platteville (2012), Agricultural Business

Refereed Publications:

1. Butts, T.R., J.D. Luck, B.K. Fritz, W.C. Hoffmann, and G.R. Kruger. 2018. Evaluation of spray pattern uniformity using three unique analyses as impacted by nozzle, pressure, and pulse-width modulation duty cycle. Pest Manag Sci. Early View, Accepted January 19, 2019. DOI: 10.1002/ps.5352.

2. Butts, T.R., C.A. Samples, L.X. Franca, D.M. Dodds, D.B. Reynolds, J.W. Adams, R.K. Zollinger, K.A. Howatt, B.K. Fritz, W.C. Hoffmann, J.D. Luck, and G.R. Kruger. 2018. Droplet size impact on dicamba plus glyphosate tank-mixture efficacy. Weed Technol. 33(1):66-74. DOI: 10.1017/wet.2018.118.

3. Butts, T.R., C.A. Samples, L.X. Franca, D.M. Dodds, D.B. Reynolds, J.W. Adams, R.K. Zollinger, K.A. Howatt, B.K. Fritz, W.C. Hoffmann, J.D. Luck, and G.R. Kruger. 2018. Optimum droplet size using a pulse-width modulation sprayer for applications of 2,4-D choline plus glyphosate. Agron J., Accepted (In Press), DOI: 10.2134/agronj2018.07.0463.

4. Butts, T.R., L.E. Butts, J.D. Luck, B.K. Fritz, W.C. Hoffmann, and G.R. Kruger. 2019. Droplet size and nozzle tip pressure from a pulse-width modulation sprayer. Biosyst Eng. 178:52-69. DOI: 10.1016/j.biosystemseng.2018.11.004.

5. Butts, T.R., B.C. Vieira, D.O. Latorre, R. Werle, and G.R. Kruger. 2018. Competitiveness of herbicide-resistant waterhemp (Amaranthus tuberculatus) with soybean. Weed Sci. 66(6):729-737. DOI: 10.1017/wsc.2018.45.

6. Vieira, B.C., T.R. Butts, A.O. Rodrigues, J.A. Golus, K.P. Schroeder, and G.R. Kruger. 2018. Spray particle drift mitigation using field corn (Zea mays L.) as a drift barrier. Pest Manag Sci. 74(9):2038-2046. DOI: 10.1002/ps.5041.

7. Butts, T.R., C.A. Samples, L.X. Franca, D.M. Dodds, D.B. Reynolds, J.W. Adams, R.K. Zollinger, K.A. Howatt, B.K. Fritz, W.C. Hoffmann, and G.R. Kruger. 2018. Spray droplet size and carrier volume effect on dicamba and glufosinate efficacy. Pest Manag Sci. 74(9):2020-2029. DOI: 10.1002/ps.4913.

8. Butts, T.R., J.G. Moraes, and G.R. Kruger. 2018. Impact of plugged venturi-nozzle air inclusion ports on droplet size distribution. Pesticide Formulation and Delivery Systems: 38th Volume, Innovative Application, Formulation and Adjuvant Technologies. ASTM STP 1610, B.K. Fritz and T.R. Butts, Eds. ASTM International, West Conshohocken, PA, pp. 76-88. DOI: 10.1520/STP161020170199.

9. Butts, T.R., W.C. Hoffmann, J.D. Luck, and G.R. Kruger. 2018. Droplet velocity from broadcast agricultural nozzles as influenced by pulse-width modulation. Pesticide Formulation and Delivery Systems: 38th Volume, Innovative Application, Formulation and Adjuvant Technologies. ASTM STP 1610, B.K. Fritz and T.R. Butts, Eds. ASTM International, West Conshohocken, PA, pp. 24-52. DOI: 10.1520/STP161020170192.

10. Butts, T.R., J.J. Miller, J.D. Pruitt, B.C. Vieira, M.C. Oliveira, S. Ramirez II, and J.L. Lindquist. 2017. Light quality effect on corn growth as influenced by weed species and nitrogen rate. Journal of Agricultural Science. 9(1):15-27. DOI: 10.5539/jas.v9n1p15.

11. Butts, T.R., J.K. Norsworthy, G.R. Kruger, L.D. Sandell, B.G. Young, L.E. Steckel, M.M. Loux, K.W. Bradley, S.P. Conley, D.E. Stoltenberg, F.J. Arriaga, and V.M. Davis. 2016. Management of pigweed (Amaranthus spp.) in glufosinate-resistant soybean (Glycine max) in the Midwest and mid-South. Weed Technol. 30(2):355-365. DOI: 10.1614/WT-D-15-00076.1.

12. Meyer, C.J., J.K. Norsworthy, B.G. Young, L.E. Steckel, K.W. Bradley, W.G. Johnson, M.M. Loux, V.M. Davis, G.R. Kruger, M.T. Bararpour, J.T. Ikley, D.J. Spaunhorst, and T.R. Butts. 2016. Early-season Palmer amaranth and waterhemp control from preemergence programs utilizing 4-hydroxyphenylpyruvate dioxygenase-inhibiting and auxinic herbicides in soybean. Weed Technol. 30(1):67-75. DOI: 10.1614/WT-D-15-00100.1.

13. Bailey, R.R., T.R. Butts, J.G. Lauer, C.A.M. Laboski, C.J. Kucharik, and V.M. Davis. 2015. Effect of weed management strategy and row width on nitrous oxide emissions in soybean. Weed Sci. 63(4):962-971. DOI: 10.1614/WS-D-15-00010.1.

14. Meyer, C.J., J.K. Norsworthy, B.G. Young, L.E. Steckel, K.W. Bradley, W.G. Johnson, M.M. Loux, V.M. Davis, G.R. Kruger, M.T. Bararpour, J.T. Ikley, D.J. Spaunhorst, and T.R. Butts. 2015. Herbicide program approaches for managing glyphosate-resistant Palmer amaranth (Amaranthus palmeri) and waterhemp (Amaranthus tuberculatus and Amaranthus rudis) in future soybean-trait technologies. Weed Technol. 29(4):716-729. DOI: 10.1614/WT-D-15-00045.1.

Professional Experience:

  • Nov. 2018 - Present, Assistant Professor, Extension Weed Scientist, University of Arkansas  (75% Extension, 25% Research)
  • Aug. 2018 - Nov. 2018, Postdoctoral Research Associate, University of Wisconsin-Madison
  • May 2015 - Aug. 2018, Graduate Research Assistant, University of Nebraska-Lincoln
  • Jan. 2012 - May 2015, Graduate Research Assistant, University of Wisconsin-Madison

Honors and Awards:

  • WSSA Outstanding Graduate Student (2019)
  • 1st Graduate Team, University of Nebraska-Lincoln, NCWSS Weeds Contest (2017)
  • 2nd Graduate Individual, NCWSS Weeds Contest (2017)
  • Gerald O. Mott Meritorious Student in Crop Science Award, University of Nebraska-Lincoln (2017)
  • 3rd Graduate Team, University of Nebraska-Lincoln, National Weed Olympics (2015)
  • 2nd Graduate Team, University of Nebraska-Lincoln, NCWSS Region (2015)
  • 2nd Graduate Team, University of Wisconsin-Madison, NCWSS Weeds Contest (2014)
  • 2nd Graduate Individual, NCWSS Weeds Contest (2014)
  • 1st Graduate Individual Herbicide I.D., NCWSS Weeds Contest (2014)