Hostname: page-component-cd9895bd7-lnqnp Total loading time: 0 Render date: 2024-12-23T07:17:06.253Z Has data issue: false hasContentIssue false
  • English
  • Français

Selective Postemergence Herbicide Control of Torpedograss in Centipedegrass

Published online by Cambridge University Press:  20 January 2017

James Taverner ,
Jeffrey S. Beasley ,
Ronald E. Strahan ,
James L. Griffin  and
Steven M. Borst
James Taverner
Affiliation:
School of Plant Environmental and Soil Sciences, Louisiana State University Agricultural Center, Baton Rouge, LA 70803
Jeffrey S. Beasley
Affiliation:
School of Plant Environmental and Soil Sciences, Louisiana State University Agricultural Center, Baton Rouge, LA 70803
Ronald E. Strahan*
Affiliation:
School of Plant Environmental and Soil Sciences, Louisiana State University Agricultural Center, Baton Rouge, LA 70803
James L. Griffin
Affiliation:
School of Plant Environmental and Soil Sciences, Louisiana State University Agricultural Center, Baton Rouge, LA 70803
Steven M. Borst
Affiliation:
School of Plant Environmental and Soil Sciences, Louisiana State University Agricultural Center, Baton Rouge, LA 70803
*
Corresponding author's E-mail: RStrahan@agcenter.lsu.edu.
Get access Rights & Permissions [Opens in a new window]

Abstract

Torpedograss infestation in centipedegrass has reduced centipedegrass quality in home lawns along the Gulf Coast. This study was conducted to evaluate three selective postemergence herbicides. Field trials were conducted at two sites in Louisiana to evaluate quinclorac, sethoxydim, and clethodim applied once or sequentially every 4 wk for selective torpedograss control in centipedegrass turf. Herbicides were applied to mixed stands of torpedograss/centipedegrass at two locations in Louisiana and evaluated for changes in torpedograss coverage and centipedegrass injury every 2 wk for 16 wk. All herbicides controlled torpedograss more with each sequential application. Sethoxydim and clethodim applied three times reduced torpedograss cover 84 and 87%, respectively, and more than quinclorac 12 wk after initial treatment (WAIT). Increasing clethodim or sethoxydim rates did not improve torpedograss control. Torpedograss regrowth occurred within weeks after final herbicide applications regardless of herbicide. Only multiple clethodim applied at twice manufacturer's labeled rate or quinclorac applications resulted in commercially unacceptable (> 25%) injury to centipedegrass. Multiple sethoxydim or clethodim applications at 0.32 kg ha−1 or 0.30 kg ha−1 every 4 wk reduced torpedograss competitiveness in centipedegrass; however, multiple applications for more than 1 yr might be necessary to achieve torpedograss control.

La infestación de Panicum repens en el césped Eremochloa ophiuroides ha reducido su calidad en jardines residenciales a lo largo de la Costa del Golfo. Este estudio se realizó para evaluar 3 herbicidas post-emergentes selectivos. Se llevaron a cabo estudios de campo en dos sitios en Louisiana para evaluar el quinclorac, sethoxydim y clethodim aplicados una sola vez o secuencialmente cada 4 semanas para el control de Panicum repens en el césped Eremochloa ophiuroides. Los herbicidas fueron aplicados a parcelas con coberturas mixtas de Panicum repens /Eremochloa ophiuroides en dos sitios en Louisiana y se evaluaron los cambios de la cobertura de Panicum repens y el daño a Eremochloa ophiuroides cada 2 semanas por 16 semanas. Todos los herbicidas controlaron en mayor grado Panicum repens con cada aplicación secuencial. El sethoxydim y el clethodim aplicados tres veces redujeron la cobertura de Panicum repens 84 y 87% respectivamente y en mayor grado que el quinclorac, 12 semanas después del tratamiento inicial (WAIT). El incrementar las dosis de sethoxydim o clethodim no mejoró el control. La reaparición de Panicum repens ocurrió unas cuantas semanas después de la aplicación final, sin importar el herbicida. Solamente aplicaciones múltiples de clethodim al doble de la dosis indicada en la etiqueta o las aplicaciones de quinclorac, ocasionaron daños comercialmente inaceptables (>25%) a Eremochloa ophiuroides. Las aplicaciones múltiples de sethoxydim o clethodim en dosis de 0.32 kg ha−1 o 0.30 kg ha−1, cada 4 semanas, redujeron la competitividad de Panicum repens en Eremochloa ophiuroides, sin embargo, aplicaciones múltiples por más de un año podrían ser necesarias para controlar Panicum repens.

Keywords

Clethodimquincloracsethoxydimtorpedograss, Panicum repens L.centipedegrass, Eremochloa ophiuroides (Munro) HackGulf CoastinjuryLouisiana weed controlturf
Type
Weed Management—Other Crops/Areas
Information
Weed Technology , Volume 25 , Issue 2 , June 2011 , pp. 212 - 216
Copyright
Copyright © Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

Baird, D. D., Urrutia, V. M., and Tucker, D. P. 1983. Management systems with glyphosate on torpedograss in citrus. Pages. 201–209. in. Proceedings of Southern Weed Science Society. New Orleans, LA: Southern Weed Science Society.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.Google Scholar
Burt, E. O. and Dudeck, A. E. 1975. Glyphosate—four years of results. Pages. 152–153. in. Proceedings of the Southern Weed Science Society. Memphis, TN: Southern Weed Science Society.Google Scholar
Chandrasena, J. P. 1990. Torpedograss (Panicum repens L.) control with lower rates of glyphosate. Trop. Pest Manag 36:336–342.Google Scholar
Duble, R. L. 2001. Turfgrasses: Their Management and Use in the Southern Zone. College Station, TX: Texas A&M University Press. 323 p.Google Scholar
Fleming, D. C., Palmertree, H. D., and Houston, D. W. 1978. Screening herbicides for torpedograss control in turf. Pages. 136. in. Proceedings of Southern Weed Science Society. New Orleans, LA: Southern Weed Science Society.Google Scholar
Henry, G. 2007. Biology, Ecology, and Control of Paspalum Species in Turfgrass. Ph.D dissertation. Raleigh, NC.: North Carolina State University. 132 p.Google Scholar
Holm, L., , G., Plucknett, D. L., Pancho, J. V., and Herberger, J. P. 1977. The World's Worst Weeds Distribution and Biology. Honolulu, HI: University Press of Hawaii. 609 p.Google Scholar
Hosaka, H. and Takagi, M. 1987. Selectivity mechanisms of sethoxydim absorption into tissues of corn (Zea mays) and pea (Pisium sativum). Weed Sci 35:619–622.Google Scholar
Manipura, W. B. and Somaratine, A. 1974. Some of the effects of manual and chemical defoliation on the growth and carbohydrate reserves of Panicum repens . Weed Res 14:167–172.Google Scholar
Pessarakli, M. 2007. Handbook of Turfgrass Management and Physiology. Boca Raton, FL: CRC Press. 690 p.Google Scholar
[SAS] Statistical Analysis Systems 1989. SAS User's Guide. Vers. 6. Cary, NC: Statistical Analysis Systems Institute. 534 p.Google Scholar
Senseman, S. A. ed. 2007. Herbicide Handbook. 9th ed. Lawrence, KS: Weed Science Society of America. 43 p.Google Scholar
Stephenson, D. O., Brecke, B. J., and Unruh, J. B. 2006. Control of torpedograss (Panicum repens) with trifloxysulfuron-sodium in bermudagrass (Cynodon dactylon × Cynodon transvaalensis) turf. Weed Technol 20:351–355.Google Scholar
Strahan, R. E. 2002. Control of Two Perennial Grasses in Southern Turfgrasses. Ph.D Dissertation. Baton Rouge, LA: Louisiana State University. 58 p.Google Scholar
Sutton, D. L. 1996. Growth of torpedograss from rhizomes planted under flooded conditions. J. Aquat. Plant Manag 34:50–53.Google Scholar
Turgeon, A. J. 2008. Turfgrass Management. 8th ed. Upper Saddle River, NJ: Prentice Hall. 387 p.Google Scholar
Waltz, F. C., Higingbottom, J. K., Murphy, T. R., Yelverton, F., and McCarty, L. B. 2001. Bermudagrass control in centipedegrass with clethodim and adjuvant combinations. Int. Turfgrass Soc. Res. J. 9:1045–1049.Google Scholar
Wilcut, J. W., Dute, R. R., Truelove, B., and Davis, D. E. 1988. Factors limiting the distribution of cogongrass (Imperata cylindrica) and torpedograss (Panicum repens). Weed Sci 36:577–582.Google Scholar