Hostname: page-component-77c89778f8-fv566 Total loading time: 0 Render date: 2024-07-18T10:59:59.520Z Has data issue: false hasContentIssue false
  • English
  • Français

Postemergence Control of Hybrid Bermudagrass (Cynodon transvaalensis Burtt-Davy × Cynodon dactylon)

Published online by Cambridge University Press:  20 January 2017

Jason A. Ferrell ,
Tim R. Murphy  and
David C. Bridges
Jason A. Ferrell*
Affiliation:
Department of Agronomy, University of Florida, Gainesville, FL 32611; Department of Crop and Soil Sciences, University of Georgia, Griffin, GA 30223
Tim R. Murphy
Affiliation:
Department of Agronomy, University of Florida, Gainesville, FL 32611; Department of Crop and Soil Sciences, University of Georgia, Griffin, GA 30223
David C. Bridges
Affiliation:
Department of Agronomy, University of Florida, Gainesville, FL 32611; Department of Crop and Soil Sciences, University of Georgia, Griffin, GA 30223
*
Corresponding author's E-mail: jferrell@ufl.edu
Get access Rights & Permissions [Opens in a new window]

Abstract

Bermudagrass [Cynodon dactylon (L.) Pers.] control for at least 1 yr is necessary to establish other forage species in pasture and hay field renovations, or to plant pine (Pinus spp.) in infested fields. Potential herbicides for hybrid Bermudagrass control were evaluated using single, repeat, and multiyear applications. Repeat applications were made 30 d after the first application beginning in mid-August each year. Imazapyr applied once at 0.56 or 1.12 kg/ha controlled hybrid Bermudagrass (cv. ‘Tifton 44’) 88 and 97%, respectively, 52 wk after treatment with no difference between rates observed. Additionally, imazapyr applied for two consecutive years controlled hybrid Bermudagrass 100%. Glyphosate isopropylamine salt and glyphosate trimethylsulfonium salt, applied for 1 yr at rates of 4.2 or 1.7 fb (followed by) 1.7 kg ae/ha and 4.8 or 1.9 fb 1.9 kg ae/ha, respectively, provided between 70 and 78% control at 52 wk after the last treatment (WALT). Hybrid Bermudagrass control from either formulation of glyphosate applied for two consecutive years ranged between 79 and 91% at 52 WALT. Relative to a 1-yr application program, either glyphosate formulation applied for two consecutive years did not significantly improve Bermudagrass control at 52 WALT. The addition of fluazifop-P at 0.42 kg ai/ha or clethodim at 0.2 kg ai/ha to glyphosate formulations did not significantly improve hybrid Bermudagrass control relative to glyphosate applied alone. However, a tank-mix of clethodim plus either formulation of glyphosate applied for two consecutive years generally improved hybrid Bermudagrass control relative to applications in only 1 yr.

Keywords

Clethodimfluazifop-Pglyphosateimazapyrsethoxydimhybrid Bermudagrass, Cynodon transvaalensis Burtt-Davy × Cynodon dactylon (L.) Pers. ‘Tifton 44’ # CYNDALong-term weed controlrepeat applicationsCRP, Conservation Reserve Programfb, followed byIPA, isopropylamine salt of glyphosateMAT, months after treatmentTMS, trimethylsulfonium salt of glyphosateWALT, weeks after last treatment
Type
Research Article
Information
Weed Technology , Volume 19 , Issue 3 , September 2005 , pp. 636 - 639
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.)

Footnotes

1 Publication R-10213 Florida Agricultural Experiment Station Journal Series.

References

Literature Cited

Boyd, J. W. and Rogers, B. N. 2001. Bermudagrass control with imazapyr. Proc. South Weed Sci. Soc. 54:65.Google Scholar
Burton, G. W. and Hanna, W. W. 1995. Bermudagrass. in Barnes, R. F., Miller, D. A., and Nelson, C. J., eds. Forages: An Introduction to Grassland Agriculture. 5th ed., Volume 1. Ames, IA: Iowa State University Press. Pp. 421–429.Google Scholar
Dangerfield, C. W. Jr., Merck, H. L., and Bullock, F. D. 1990. Projected economic returns: pine release from bermudagrass. Proc. South. Weed Sci. Soc. 43:282–286.Google Scholar
Dangerfield, C. W. Jr. and Moorhead, D. J. 1997. Revised modeling used to evaluate impacts of management and rotation on wood-flow and profitability from Conservation Reserve Program pine plantations in Georgia. in Kluender, R. M., ed. Proc. 27th Ann. South. For. Econ. Workshop. Monticello, AR: University of. Arkansas. Pp. 160–166.Google Scholar
Grichar, W. J. and Boswell, T. E. 1989. Bermudagrass (Cynodon dactylon) control with postemergence graminicides in peanut (Arachis hypogaea). Weed Technol. 3:267–271.Google Scholar
Johnson, B. J. 1988. Glyphosate and SC-0224 for bermudagrass (Cynodon) cultivar control. Weed Technol. 2:20–23.Google Scholar
Martin, S. W. and Shiver, B. D. 2002. Impacts of vegetation control, genetic improvement and their interaction on loblolly pine growth in the southern United States–age 12 results. South. J. Appl. For. 26:37–42.Google Scholar
Redfearn, D. D. and Nelson, C. J. 1995. Grasses for Southern areas. in Barnes, R. F., Miller, D. A., and Nelson, C. J., eds. Forages: An Introduction to Grassland Agriculture. 5th ed, Volume 1. Ames, IA: Iowa State University Press. Pp. 151–153.Google Scholar
Richard, E. P. Jr. 1997. Effects of fallow bermudagrass (Cynodon dactylon) control programs on newly planted sugarcane (Saccharum spp. hybrids). Weed Technol. 11:677–682.Google Scholar
Smith, A. E. 1989. Interference with loblolly pine (Pinus taeda) seedling growth in three grass species. Weed Technol. 3:696–698.Google Scholar
Thompson, M. T. 1997. Forest statistics of Georgia. USDA Forest Service. Resource Bulletin SRS-36. Southern Research Station, Asheville, NC. Pp. 23–24.Google Scholar
Vencill, W. K. ed. 2002). Herbicide Handbook. 8th ed. Lawrence, KS: Weed Science Society of America. Pp. 251–253.Google Scholar
Waltz, F. C. Jr., Higgingbottom, J. K., Murphy, T. R., Yelverton, F., and McCarty, L. B. 2001. Bermudagrass control in centipedegrass with clethodim and adjuvant combinations. Inter. Turf. Soc. Res. J. 9:1045–1049.Google Scholar
Webster, T. M., Bednarz, C. W., and Hanna, W. W. 2003. Sensitivity of triploid hybrid cultivars and common bermudagrass to postemergence herbicides. Weed Technol. 17:509–515.Google Scholar
Whitwell, T. and Santlemann, P. W. 1978. Influence of growth stage and soil conditions on bermudagrass susceptibility to glyphosate. Agron. J. 70:653–656.Google Scholar