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Control of Torpedograss (Panicum repens) with Trifloxysulfuron-Sodium in Bermudagrass (Cynodon dactylon × Cynodon transvaalensis) Turf

Published online by Cambridge University Press:  20 January 2017

Daniel O. Stephenson IV ,
Barry J. Brecke  and
J. Bryan Unruh
Daniel O. Stephenson IV*
Affiliation:
West Florida Research and Education Center, Agronomy Department, Department of Environmental Horticulture, University of Florida, 5988 Highway 90, Building 4900, Milton, FL 32583
Barry J. Brecke
Affiliation:
West Florida Research and Education Center, Agronomy Department, Department of Environmental Horticulture, University of Florida, 5988 Highway 90, Building 4900, Milton, FL 32583
J. Bryan Unruh
Affiliation:
West Florida Research and Education Center, Agronomy Department, Department of Environmental Horticulture, University of Florida, 5988 Highway 90, Building 4900, Milton, FL 32583
*
Corresponding author's E-mail: dstephenson@uaex.edu
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Abstract

Torpedograss is a serious problem in southern turfgrass, especially along the U.S. gulf coast. Studies were conducted in 1999, 2000, 2002, and 2003 to evaluate single and sequential applications of trifloxysulfuron-sodium for torpedograss control in bermudagrass turf. In 1999/2000, single applications of trifloxysulfuron-sodium at 75 g ai/ha provided at least 10% better torpedograss control than 25 g/ha 7 and 15 wk after initial treatment (WAIT). When evaluated 15 WAIT, sequential applications of trifloxysulfuron-sodium provided 87% control, similar to 84% control observed with quinclorac + diclofop-methyl, each applied at 840 g ai/ha. Both treatments controlled torpedograss better than a single trifloxysulfuron-sodium application (61%) in 1999/2000. Torpedograss control was less in 2002/2003 than in 1999/2000 because of high rainfall, which encouraged aggressive torpedograss growth and possible movement of trifloxysulfuron-sodium below its rooting zone. No differences were noted among trifloxysulfuron-sodium rates or number of applications in 2002/2003. Quinclorac + diclofop-methyl controlled torpedograss greater than trifloxysulfuron-sodium 15 WAIT in 2002/2003, but neither treatment provided greater than 45% control. These results suggest that trifloxysulfuron-sodium controls torpedograss when rainfall is not excessive.

Keywords

Bermudagrass, Cynodon dactylon (L.) Pers. × Cynodon transvaalensis Burtt-Davey ‘Tifway’torpedograss, Panicum repens L. # PANREApplication rateapplication frequencyWAIT, weeks after initial treatment
Type
Research Article
Information
Weed Technology , Volume 20 , Issue 2 , June 2006 , pp. 351 - 355
Copyright
Copyright © Weed Science Society of America 

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Footnotes

1 This research was supported by the Florida Agricultural Experiment Station and approved for publication as Journal Series R-10910.
Current address: Cropping Systems Agronomist, Northeast Research and Extension Center, University of Arkansas, Post Office Box 48, Keiser, AR 72351.

References

Literature Cited

Askew, S. D., Beam, J. B., and Barker, W. L. 2003. Control of overseeded ryegrass on bermudagrass fairways with trifloxysulfuron-sodium. Proc. Northeast Weed Sci. Soc. 57:110.Google Scholar
Belcher, J. L., Walker, R. H., Van Santen, E., and Wehtje, G. R. 2002. Nontuberous sedge and kyllinga species' response to herbicides. Weed Technol. 16:575–579.Google Scholar
Brecke, B. J. and Unruh, J. B. 2002. Weed management in warm-season turfgrass with CGA 362622. Proc. South. Weed Sci. Soc. 55:52.Google Scholar
Brecke, B. J., Unruh, J. B., and Dusky, J. A. 2001. Torpedograss (Panicum repens) control with quinclorac in bermudagrass (Cynodon dactylon × C. transvaalensis) turf. Weed Technol. 15:732–736.CrossRefGoogle Scholar
Holm, L. G., Plucknett, D. L., Pancho, J. V., and Herberger, J. P. 1997. The World's Worst Weeds: Distribution and Biology. Malabar, FL: Kriegen Publ. Co. Pp. 353–357.Google Scholar
Hossain, M. A., Ishimine, Y., Akamine, H., Murayama, S., Uddin, S. M. Moslem, and Kuniyoshi, K. 1999. Effect of burial depth on emergence of Panicum repens . Weed Sci. 47:651–656.CrossRefGoogle Scholar
Hudetz, M., Foery, W., Wells, J., and Soares, J. E. 2000. CGA 362622, a new low rate Novartis post-emergent herbicide cotton and sugarcane. Proc. South. Weed. Sci. 53:163.Google Scholar
Johnson, B. J. 1996. Tank-mixed postemergence herbicides for large crabgrass (Digitaria sanguinalis) and goosegrass (Eleusine indica) control in bermudagrass (Cynodon dactylon) turf. Weed Technol. 10:716–721.CrossRefGoogle Scholar
McCarty, L. B. and Miller, G. 2002. Managing Bermudagrass Turf. Selection, Construction, Cultural Practices, and Pest Management Strategies. Chelsea, MI: Ann Arbor Press. P. 215.Google Scholar
McCarty, L. B., Higgins, J. M., and Colvin, D. L. 1993. Selective torpedograss (Panicum repens) control in bermudagrass (Cynodon spp.) turf. Weed Technol. 7:911–915.CrossRefGoogle Scholar
Mosdell, D. K., DiPaola, J. M., Johnson, M. D., Wells, J. W., and Rawls, E. 2001. Efficacy of trifloxysulfuron-Na as a postemergence herbicide in warm season grasses. Annual meetings [CD-ROM]. Madison, WI: American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.Google Scholar
Nishimoto, R. K. and Murdoch, C. L. 1999. Mature goosegrass (Eleusine indica) control in bermudagrass (Cynodon dactylon) turf with a metribuzin-diclofop combination. Weed Technol. 13:169–171.CrossRefGoogle Scholar
Porterfield, D., Wilcut, J. W., and Askew, S. D. 2002. Weed management with CGA-362622, fluometuron, and prometryn in cotton. Weed Sci. 50:642–647.Google Scholar
Rawls, E. K., Wells, J. W., Hudetz, M., Jain, R., and Ulloa, M. F. 2000. CGA-362622: a new herbicide for weed control in sugarcane. Proc. South. Weed Sci. Soc. 53:163.Google Scholar
Sartain, J. B. 2000. General Recommendations for Fertilization of Turfgrasses on Florida Soils. Web page: http://edis.ifas.ufl.edu/pdffiles/LH/LH01400.pdf. Accessed: May 8, 2004.Google Scholar
[SAS] Statistical Analysis Systems. 2004. SAS/STAT User's Guide Release 9.0. Cary, NC: Statistical Analysis Institute.Google Scholar
Schardt, J. D. and Schmitz, D. C. 1992. 1992 Florida Aquatic Plant Survey. Tallahassee, FL: Florida Department of Natural Resources Technical Report 942-CGA. 89 p.Google Scholar
Shilling, D. G. and Haller, W. T. 1989. Interactive effects of diluent pH and calcium content on glyphosate activity on Panicum repens L. (torpedograss). Weed Res. 29:441–448.CrossRefGoogle Scholar
Sutton, D. L. 1996. Growth of torpedograss from rhizomes planted under flooded conditions. J. Aquat. Plant Manage. 34:50–53.Google Scholar
Tenpenny, R. M., Sutton, D. L., and MacDonald, G. E. 2001. Vegetative reproduction of torpedograss. Proc. South. Weed Sci. Soc. 54:132.Google Scholar
Teuton, T. C., Unruh, J. B., Brecke, B. J., MacDonald, G. E., Miller, G. L., and Ducar, J. Tredaway 2004. Tropical signalgrass (Urchloa subquadripara) control with preemergence- and postemergence-applied herbicides. Weed Technol. 18:419–425.CrossRefGoogle Scholar
Vencill, W. K. 2002. Herbicide Handbook of the Weed Science Society of America. 8th ed. Lawrence, KS: Weed Science Society of America. Pp. 136–138, 438–439.Google Scholar
Walker, R. H. and Belcher, J. L. 2002. Sulfonyl urea herbicides for Poa annua control in bermudagrass turf. Proc. South. Weed Sci. Soc. 55:50–51.Google Scholar
Webster, T. M. 2000. The southern states 10 most common and troublesome weeds in turf. Proc. South. Weed Sci. Soc. 53:267.Google Scholar
Wilcut, J. W., Truelove, B., Davis, D. E., and Williams, J. C. 1988. Temperature factors limiting the spread of cogongrass (Imperata cylindrica) and torpedograss (Panicum repens). Weed Sci. 36:49–55.Google Scholar