Weed Research

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Gregory K. (Greg) Breeden
Extension Assistant II
Turfgrass Weed Control

James T. (Jim) Brosnan
Associate Professor
Turfgrass Weed Science

Robert M. (Bob) Hayes
Director and Professor
Weed Science

Thomas C. (Tom) Mueller
Weed science

Lawrence E. Steckel
Weed management

Josť J. (Javi) Vargas
Research Associate II
Horticultural & Invasive Weed Management


Weed Tour, 6/21/2017

Weed Tour, 6/22/2016

UT Weed Tour, 6/24/2015



AgResearch Faculty and Staff Presented with Awards at 2019 UTIA Luncheon, 11/29/2019

Commendations Corner - October 2019, 11/23/2019

Promotion and Tenure 2019, 11/12/2019

UTIA/MTSU Partnership Establishes Organic Forage Cropping Systems, 3/8/2018

Dicamba Briefing, 11/27/2017

Promotion and Tenure 2017, 10/16/2017

Neal Stewart Nominated for UT Presidentís Discover Award, 10/9/2017

UTIA Faculty Spotlight | Dr. Jim Brosnan, 7/18/2017

High Hopes for Tennessee Cotton, 4/17/2017

Answers to Farmersí Questions, 10/22/2016


(1 mention)

Weed Olympics 
We've had an Olympic competition here in Tennessee involving ... plants. More specifically, plants we don't like or want. It's called the 'Weed Olympics' on the UT agriculture campus.

(1 mention)

The Story of Cotton 
A look at the history, production and uses of cotton.

(1 mention)

Cotton Outlook 2011 
Like much of Dixie, Tennessee is -- once again -- the land of cotton. Our state will produce nearly twice as many acres of the crop as it did just a couple of years ago.

(1 mention)

Sensor Drones 
Many Tennessee farmers use drones to fly over and view crops. UTIA is now working on sensors attached to drones to provide valuable information.


Recent Publications

Antimicrobial activity of Persicaria pensylvanica extract against Staphylococcus aureus Abdi, R. D., and O. Kerro Dego.  2019.  European Journal of Integrative Medicine, Volume 29, August 2019. [Abstract]

Effect of environmental weathering on microbial assimilation of biodegradable plastic mulches under ambient soil and composting conditions.  Anunciado, M. B., C. D. Cowan-Banker, A. F. Astner, L. C. Wadsworth, and D. G. Hayes.  2019.  BioEnvironmental Polymer Society Annual Meeting, Greenville, SC, 5-7 June 2019. [Abstract]

Seasonal Hay Feeding for Cattle Production in the Fescue Belt Boyer, C., D. M. Lambert, A. P. Griffith, C. D. Clark, and B. C. English.  2019.  Journal of Agricultural and Applied Economics, Cambridge University Press, pp 1-14. [Abstract]

Weed control lessons learned in 2018.  Brosnan, J. T.  2019.  Tennessee Turfgrass. April/May. pp: 24-27..

Weed control lessons learned in 2018.  Brosnan, J. T.  2019.  SPORTSTURF, April 2018. p. 10.

Postemergence weed control in warm-season turfgrass with a mixture or pyrimisulfan + penoxsulam Brosnan, J. T., and G. K. Breeden.  2019.  HortScience, 54:960-963.

Weed control lessons learned in 2018.  Brosnan, J. T., G. K. Breeden, and J. J. Vargas.  2019.  Tennessee Greentimes, 20:12-14.

Herbicide resistant weeds in turfgrass: current status and emerging threats.  Brosnan, J. T., M. T. Elmore, and M. V. Bagavathiannan.  2019.  Weed Technology, (under review; submitted 7 November 2019).

Caverzan, A., C. Piasecki, G. Chavarria, C.N. Stewart, Jr., L. Vargas. 2019. Defenses against ROS in crops and weeds: the effects of interference and herbicides. International Journal of Molecular Sciences 20: 1086. doi.org/10.3390/ijms20051086.  Caverza, A., C. Piasecki, G. Chavarra, C. N. Stewart, Jr., and L. Vargas.  2019.  International Journal of Molecular Sciences.

Controlling weedy perennials, shrubs and trees on slopes and near wetlands.  Gregg, D., A. L. Ludwig, and W. E. Klingeman.  2019.  TN Greentimes, 20(4): 14-18.

When Worlds Collide: Relationships Between the Life Cycle of Biodegradable Plastic Mulches and Ecosystems.  Hayes, D. G., M. B. Anunciado, A. F. Astner, M. English, A. L. Wszelaki, J. L. Moore, S. V. Pingali, M. Flury, H. Y. Sintim, J. M. DeBruyn, S. M. Schaeffer, and S. Bandpadhyay.  2019.  BioEnvironmental Polymer Society Annual Meeting, Greenville, SC, 5-7 June 2019 (other coauthors: H. M. O'Neill, B.R. Evans, V.S. Urban, C. Miles, S. Ghimire, M. Flury, and H.Y. Sintim). [Abstract]

Biodegradable Plastic Mulch Films for Sustainable Specialty Crop Production Hayes, D. G., M. B. Anunciado, J. M. DeBruyn, S. Bandopadhyay, S. M. Schaeffer, M. English, S. Ghimire, C. Miles, M. Flury, and H. Y. Sintim.  2019.  Polymers for Agri-Food Applications, Gutierrez, T.J. (Editor), Berlin, Springer Nature, pp. 183-213. [Abstract]