If we've left out important UTIA personnel or resources, please send us a link.

Personnel

Robert M. (Bob) Hayes
Director
Weed Science

Groups and Facilities


1 mention

Weed Diagnostics Center 
Diagnostic testing services for weeds of crop and non-cropland systems including turfgrass, ornamentals, and utility rights of way.



1 mention

Turfgrass Weeds 
Turfgrass weed management recommendations and publications.


 

Video


7 mentions

Weed Research 
A climate that's good for a variety of crops means many types of weeds also thrive. UT AgResearch works to help farmers battle this yearly problem that can greatly affect their yields.



6 mentions

Sweet corn 
UT AgResearchers applied herbicides to experimental sweet corn to keep weeds away. But something unexpected happened -- they boosted the nutritional value of the corn.



4 mentions

Weed Progress 
Weeds are a nuisance to gardeners, but downright devastating to those who farm for a living. But now experts and farmers say the worst may be behind us.



1 mention

Nozzle Selection 
Nozzle selection has been simplified over the years, but different types of nozzles are needed for different situations.



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.


 

Recent Publications

A rapid diagnostic assay for detecting herbicide resistance in annual bluegrass.  Brosnan, J. T., J. J. Vargas, E. H. Reasor, and G. K. Breeden.  2017.  Proc. Northeastern Plant Pest and Soils Conference, (In press).

Controlling herbicide resistant annual bluegrass (Poa annua) phenotypes with methiozolin.  Brosnan, J. T., J. J. Vargas, G. K. Breeden, S. L. Boggess, M. E. Staton, P. A. Wadl, and R. N. Trigiano.  2017.  Weed Technology.

Resistance is Futile: Estimating the Costs of Managing Herbicide Resistance as a First-order Markov Process and the Case of US Upland Cotton Producers.  Lambert, D. M., J. A. Larson, R. K. Roberts, B. C. English, X. Zhou, L. L. Falconer, R. J. Hogan, J. L. Johnson, and J. M. Reeves.  2017.  Agricultural Economics, 48:110, http://onlinelibrary.wiley.com/doi/10.1111/agec.12341/epdf.

A rapid diagnostic assay for detecting herbicide resistance in annual bluegrass.  Vargas, J. J., J. T. Brosnan, G. K. Breeden, and E. H. Reasor.  2017.  Proc. Southern Weed Sci. Soc..

Herbicide resistance in-season quick assay for Italian ryegrass and annual bluegrass.  Argenta, J. C., R. A. Salas, N. R. Burgos, and J. T. Brosnan.  2016.  Proc. Weed Sci Soc Am. 69:55.

Avoid herbicide resistance by understanding how herbicides work.  Breeden, G. K., and J. T. Brosnan.  2016.  Tennessee Turfgrass, February/March. pp: 18-22.

Understanding how turfgrass herbicides work.  Breeden, G. K., J. T. Brosnan, and J. J. Vargas.  2016.  W352 - University of Tennessee Extension.

Herbicides are effective for reducing dense native warm-season grass and controlling a common invasive species, Lespedeza cuneata.  Brooke, J. M., and C. A. Harper.  2016.  Journal of the Southeastern Association of Fish and Wildlife Agencies.

Confirmation and control of annual bluegrass resistant to photosystem II inhibiting herbicides Brosnan, J. T., G. K. Breeden, J. J. Vargas, S. Boggess, R. N. Trigiano, and M. E. Staton.  2016.  International Turf Society Res. Journal.

A rapid diagnostic assay for detecting herbicide resistance in annual bluegrass.  Brosnan, J. T., J. J. Vargas, E. H. Reasor, and G. K. Breeden.  2016.  Agronomy Abstracts [CD-ROM].

A new amino acid substitution (Ala-205-Phe) in acetolactate synthase confers broad spectrum resistance to ALS-inhibiting herbicides.  Brosnan, J. T., J. J. Vargas, G. K. Breeden, L. Grier, R. Aponte, S. Tresch, and M. LaForest.  2016.  PLANTA, 243:149-159.

Determining the most effective and economical PRE herbicides for GLB2 cotton.  Buck, T., A. York, S. Culpepper, and L. E. Steckel.  2016.  Proc. South Weed Sci. Soc., 69:96.