Hostname: page-component-586b7cd67f-gb8f7 Total loading time: 0 Render date: 2024-11-27T23:52:38.621Z Has data issue: false hasContentIssue false
  • English
  • Français

Preemergence and Postemergence Herbicides for Large Crabgrass (Digitaria sanguinalis) Control in Centipedegrass (Eremochloa ophiuroides)

Published online by Cambridge University Press:  12 June 2017

B. Jack Johnson
B. Jack Johnson*
Affiliation:
University of Georgia, Georgia Agricultural Experimental Station, Griffin, GA 30223-1797
Get access Rights & Permissions [Opens in a new window]

Abstract

Two experiments were conducted over a two-year period for large crabgrass control in centipedegrass. The experiments were: (a) sequential applications of PRE and POST herbicides, and (b) POST herbicides applied as sequential or tank-mixed applications. Large crabgrass control was greater than 80% throughout the spring and summer when dithiopyr was applied PRE at 0.14 kg/ha late in February or when tank mixed at the same rate with sethoxydim at 0.11 kg/ha and applied POST in late May. Control was similar from a sequential program of dithiopyr applied PRE at 0.14 kg/ha in February and followed either by dithiopyr at 0.14 kg/ha or sethoxydim at 0.11 kg/ha as POST in early to mid-summer. Dithiopyr at 0.28 kg/ha as a POST application in late May did not control large crabgrass consistently. Control was > 80% for 6 to 8 wk when the POST dithiopyr treatment was repeated at the same rate 1 mo later. Sethoxydim applied POST controlled large crabgrass greater than 80% throughout the spring and summer when applied once at 0.22 kg/ha or twice at 0.11 kg/ha in each of two applications. Dithiopyr applied alone or with sethoxydim as sequential or tank-mixed treatments caused slight to moderate centipedegrass injury but was commercially acceptable (< 30%). However, injury from tank-mix herbicides was similar to either applied alone. Quinclorac severely injured (> 30%) centipedegrass, and 8 to 10 wk were required for recovery.

Keywords

Dithiopyr, S,S-dimethyl 2-(difluoromethyl)-4-(2-methylpropyl)-6-(trifluoromethyl)-3,5-pyridinedicarbothioatequinclorac, 3,7-dichloro-8-quinolinecarboxylic acidsethoxydim, 2-[1-(ethoxyimino)butyl]-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-onecentipedegrass, Eremochloa ophiuroides (Munro) Hack. # ERLOP, large crabgrass, Digitaria sanguinalis (L.) ScopHerbicide programturfgrass injuryweed controlDIGSAERLOPMSMA, monosodium salt of methylarsonic acidWAT, weeks after treatment
Type
Research
Information
Weed Technology , Volume 11 , Issue 1 , March 1997 , pp. 144 - 148
Copyright
Copyright © 1997 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.)

References

Literature Cited

Dernoeden, P. H., and Krouse, J. M. 1991. Selected crabgrass control evaluations for Maryland in 1990. Proc. Northeast. Weed Sci. Soc. 45:117–118.Google Scholar
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
Johnson, B. J., 1987. Turfgrass species response to herbicides applied postemergence. Weed Technol. 1:305–311.Google Scholar
Johnson, B. J., 1993. Sequential herbicide treatments for large crabgrass (Digitaria sanguinalis) and goosegrass (Eleusine indica) control in bermudagrass (Cynodon dactylon) turf. Weed Technol. 7:674–680.CrossRefGoogle Scholar
Johnson, B. J., 1994. Tank-mixed herbicides on large crabgrass (Digitaria sanguinalis) and goosegrass (Eleusine indica) control in common bermudagrass (Cynodon dactylon) turf. Weed. Sci. 42:216–221.CrossRefGoogle Scholar
Johnson, B. J., 1995. Frequency of Drive (quinclorac) treatments on common hermudagrass tolerance and on large crabgrass control. J. Environ. Hortic. 13:104–108.Google Scholar
Johnson, B. J., 1996a. Effect of reduced dithiopyr and prodiamine rates on large crabgrass (Digitaria sanguinalis) control in common hermudagrass (Cynodon dactylon) and tall fescue (Festuca arundinacea) turf. Weed Technol. 10:322–326.Google Scholar
Johnson, B. J., 1996b. Tank-mixed postemergence herbicides for large crabgrass (Digitaria sanguinalis) and goosegrass (Eleusine indica) control in hermudagrass (Cynodon dactylon) turf. Weed Technol. 10:716–721.CrossRefGoogle Scholar
Johnson, B. J., 1996c. Response of zoysiagrass cultivar to preemergence herbicides. J. Turfgrass Manage. In press.CrossRefGoogle Scholar
Johnson, B. J., and Murphy, T. R. 1987. Control of large crabgrass and goosegrass in warm-season turfgrasses. Ga. Agric. Res. Bull. 364:29.Google Scholar
Johnson, B. J., and Murphy, T. R. 1989. Summer annual weed control in turfgrass. Ga. Agric. Res. Bull. 388:29.Google Scholar
Johnson, B. J., and Murphy, T. R. 1993. Summer weed control with herbicides in turfgrasses. Ga. Agric. Res. Bull. 411:16.Google Scholar
Johnson, B. J., and Murphy, T. R. 1996. Efficacy of preemergence herbicides in turfgrasses. Ga. Agric. Res. Bull. 424:24.Google Scholar
McCarty, L. B., Higgins, J. M., Miller, L. C., and Whitwell, T. 1986. Centipedegrass tolerance to postemergence grass herbicides. Hortic. Sci. 21:1405–1407.Google Scholar
SAS Institute. 1982. SAS User's Guide. Cary, NC: SAS Institute. 956 p.Google Scholar
Turner, D. L., Sharpe, S. S., and Dickens, R. 1990. Herbicide effects on tensile strength and rooting of centipedegrass sod. Hortic. Sci. 25:541–544.Google Scholar