Skip to main content Accessibility help

Distance and Severity of Creeping Bentgrass Injury from Mower-Dislodged Sulfonylurea Herbicides

  • John B. Willis (a1) and Shawn D. Askew (a1)


Several field observations and limited research have confirmed that sulfonylurea herbicides commonly used in warm-season turf can laterally relocate via turf equipment and injure neighboring cool-season grasses. This phenomenon is referred to as ‘tracking’ among turf managers and often occurs when mowers traverse treated areas and adjacent creeping bentgrass putting greens, fairways, and tee boxes while foliage is wet with dew. Tracked flazasulfuron and metsulfuron at 9 and 42 g/ha, respectively, caused little injury to creeping bentgrass. Flazasulfuron at 26 and 53 g/ha, and foramsulfuron at 28 g ai/ha tracked while dew was present 20 h after treatment (HAT) resulted in the most noticeable creeping bentgrass injury when tracked. Flazasulfuron at higher rates and foramsulfuron tracked 20 HAT on dew-covered turf reduced turf color compared to nontracked turf. When the mower traversed dry turf at 6 HAT and wet turf at 68 HAT, turf color was reduced less than wet turf tracked 20 HAT. Length of track and creeping bentgrass injury decreased with flazasulfuron rate. When using flazasulfuron at rates between 9 and 53 g/ha, a 1.5- and 4.5-m border, respectively, around creeping bentgrass would eliminate most injury from tracked herbicide.


Corresponding author

Corresponding author's E-mail:


Hide All
Ackley, J. A., Hatzios, K. K., and Wilson, H. P. 1999. Absorption, translocation, and metabolism of rimsulfuron in black nightshade (Solanum nigrum), eastern black nightshade (Solanum ptycanthum), and hairy nightshade (Solanum sarrachoides). Weed Technol. 13:151156.
Askew, S. D., Ricker, D. B., and Willis, J. B. 2006a. Weed control and bermudagrass response to ALS-inhibiting herbicides applied in mixtures with broadleaf herbicides. Proc. South. Weed Sci. Soc. 59:109.
Askew, S. D., Willis, J. B., Goddard, M., and Grove, M. 2007. Absorption, translocation, and metabolism of flazasulfuron in turfgrass and selected weeds. Proc. South. Weed Sci. Soc. 60:68.
Askew, S. D., Willis, J. B., LaBranche, A., Ricker, D. B., and Ervin, E. H. 2006b. Effects of bermudagrass cultivars and herbicides on transition. Golf Course Manag. 74:7578.
Barker, W. L., Beam, J. B., and Askew, S. D. 2005. Effects of rimsulfuron lateral relocation on creeping bentgrass (Agrostis stolonifera). Weed Technol. 19:647652.
Barker, W. L., Beam, J. B., and Askew, S. D. 2006. Persistence of rimsulfuron on perennial ryegrass (Lolium perenne) and annual bluegrass (Poa annua) foliage. Weed Technol. 20:345350.
Bunting, J. A., Sprague, C. L., and Riechers, D. E. 2004. Physiological basis for tolerance of corn hybrids to foramsulfuron. Weed Sci. 52:711717.
Goddard, M. J., Askew, S. D., Willis, J. B., and Grove, M. B. 2007. Flazasulfuron: a potential solution for selective perennial ryegrass control in creeping bentgrass. Proc. South. Weed Sci. Soc. 61:13.
Henry, G. M., Burton, J. D., and Yelverton, F. H. 2007. Absorption, translocation, and metabolism of foramsulfuron in dallisgrass. Proc. South. Weed Sci. Soc. 61:85.
Keese, R., Spak, D., and Sain, C. 2005. New tools for the golf course superintendent. USGA, Green Section Record. July–August. 1618.
Manheimer, S., Crisp, N., and Bailey, A. 2000. General Statistics, Golf Course by Type. Virginia's Turfgrass Industry. Richmond, VA National Agricultural Statistics Service. 1016.
McIntosh, M. S. 1983. Analysis of combined experiments. Agron. J. 75:153155.
SAS 2004. SAS/STAT User's Guide Release 9.0. Cary, NC SAS Institute.



Altmetric attention score

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed