Hostname: page-component-7b7567c8c-7pwfn Total loading time: 0 Render date: 2026-11-12T15:11:04.407Z Has data issue: false hasContentIssue false
  • English
  • Français

Selective Torpedograss (Panicum repens) Control in Bermudagrass (Cynodon spp.) Turf

Published online by Cambridge University Press:  12 June 2017

Lambert B. McCarty,
Jeffery M. Higgins and
Daniel L. Colvin
Lambert B. McCarty
Affiliation:
Dep. Environ. Hortic., Box 110670, Univ. Florida, Gainesville, FL 32611-0670
Jeffery M. Higgins
Affiliation:
Pennington Enterprises, Inc., Madison, GA 30650
Daniel L. Colvin
Affiliation:
Dep. Agron., Univ. Florida
Get accessRights & Permissions [Opens in a new window]

Abstract

Torpedograss has invaded fine turfgrasses in the Southern U.S. due to its tolerance to most commonly used turfgrass herbicides. Research was conducted to determine torpedograss and ‘Tifway’ bermudagrass tolerance to quinclorac and tank-mix combinations with other turf herbicides. Quinclorac rates in excess of 2.2 kg ai/ha were required for control (≥ 80%) of torpedograss. Sequential applications were more effective than single applications. Generally, sequential applications made 3 wk after the initial were more effective than delaying sequential applications until 4 wk after the initial application. Tifway bermudagrass injury from quinclorac applied at 4.5 kg/ha, or at 2.2 kg/ha followed by a sequential application of 1.1 or 2.2 kg/ha, was observed at 4 to 10 wk; however, turf recovered thereafter. Sequential applications of quinclorac plus imazaquin (1.1 + 0.6 kg/ha) increased torpedograss control (approximate 35%) as compared to quinclorac plus MSMA (1.1 + 1.1 kg/ha) but also decreased turf quality versus quinclorac applied alone or in combination with MSMA. Quinclorac applied at 2.2 kg/ha followed by 1.1 kg/ha applied 3 or 6 wk after the initial controlled torpedograss best with least reduction in bermudagrass quality. Quinclorac is the first herbicide reported to selectively control torpedograss in bermudagrass turf.

Keywords

Imazaquin, 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-3-quinolinecarboxylic acid: MSMA, monosodium salt of methylarsonic acidquinclorac, 3,7-dichloro-8-quinolinecarboxylic acidtorpedograss, Panicum repens L. # PANRE‘Tifway’ bermudagrass, Cynodon dactylon (L.) Pers. x C. transvaalensis Burt-DavyGolf courseBAS 514imazaquinMSMAquincloracPANRE

Information

Type
Research
Information
Weed Technology , Volume 7 , Issue 4 , December 1993, pp. 911 - 915
Copyright
Copyright © 1994 by the 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.)

Article purchase

Temporarily unavailable

References

Literature Cited

1. Berghaus, R. and Retzlaff, G. 1988. Uptake and translocation of herbicidal quinolinecarboxylic acids in plants. Proc. Eur. Weed Res. Soc. Symp. 28:81–86.Google Scholar
2. Burt, E. O. 1980. Glyphosate for torpedograss and bermudagrass control. p. 257–262 in Beard, J. B., ed. Prod. Int. Turfgrass Res. Conf., 3rd. Madison, WI.Google Scholar
3. Chism, W. J., Bingham, S. W., and Shaver, R. L. 1991. Uptake, translocation, and metabolism of quinclorac in two grass species. Weed Technol. 5:771–775.CrossRefGoogle Scholar
4. Dickens, R. 1974. Cogongrass in Alabama after sixty years. Weed Sci. 22:177–179.Google Scholar
5. Enache, A. J. and Ilnicki, R. D. 1991. BAS 514 and dithiopyr for weed control in cool-season turfgrasses. Weed Technol. 5:616–621.CrossRefGoogle Scholar
6. Holm, L. D., Plucknett, D. L., Pancho, J. B., and Herberger, J. P. 1977. The World's Worst Weeds. Distribution and Biology. Univ. Press of Hawaii, Honolulu, HI. 609 p.Google Scholar
7. Klosterboer, A. D. 1992. Quinclorac evaluation in Texas rice. Proc. South. Weed Sci. Soc. 45:96.Google Scholar
8. Layton, J., Akers, R., Finley, C., Walter, H., and Ludwig, J. 1991. BAS 514 00 H applied preemergence or postemergence to control problem weeds in new or established warm or cool season turf. Proc. South. Weed Sci. Soc. 44:185.Google Scholar
9. McCarty, L. B. 1992. Quinclorac evaluations in warm-season turfgrasses. Proc. South. Weed Sci. Soc. 45:136.Google Scholar
10. Murphy, T. R., McCarty, L. B., Hall, D., Colvin, D. L., Dickens, R., and Everest, J. W. 1992. Weeds of Southern Turfgrasses. Fla. Coop. Ext. Serv., Gainesville, FL. 208 p.Google Scholar
11. Singh, M. and Tucker, D.P.H. 1986. Fluazifop-butyl and sethoxydim for grass control in citrus. Proc. South. Weed Sci. Soc. 39:184.Google Scholar
12. Tarver, D. P., Rogers, J. A., and Mahler, M. J. 1978. Aquatic and Wetland Plants of Florida. Fla. Dep. Nat. Resour. Bur. Aquat. Plant Res. Conf. Tallahassee, FL. 127 p.Google Scholar
13. 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
14. 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