Hostname: page-component-cd9895bd7-mkpzs Total loading time: 0 Render date: 2024-12-23T10:12:15.918Z Has data issue: false hasContentIssue false

Tolerance of Winter-Installed Tall Fescue (Festuca arundinacea) and Hybrid Bermudagrass (Cynodon transvaalensis × C. dactylon) Sod to Herbicides

Published online by Cambridge University Press:  20 January 2017

Jason A. Ferrell*
Affiliation:
Department of Crop and Soil Sciences, University of Georgia, Griffin, GA 30223
Tim R. Murphy
Affiliation:
Department of Crop and Soil Sciences, University of Georgia, Griffin, GA 30223
William K. Vencill
Affiliation:
Department of Crop and Soil Sciences, University of Georgia, Griffin, GA 30223
*
Corresponding author's E-mail: [email protected]

Abstract

Studies examined the effect of herbicides on the quality and root strength of winter-installed tall fescue and hybrid bermudagrass sod. Sod was installed in February and treated approximately 30 to 45 d after installation with a variety of preemergence (PRE) and postemergence (POST) herbicides. Tall fescue quality was not affected by any herbicide treatment in 2000 or 2001. Root strength reduction occurred only in 2001 by dithiopyr applied PRE at 2.5 kg ai/ha, which is 4.5 times the maximum use rate. No other herbicides decreased tall fescue root strength in either year. Bermudagrass quality was decreased by triclopyr plus clopyralid applied POST, which resulted in 22 and 6% injury 42 d after initial treatment (DAIT) in 2000 and 2001, respectively. However, POST herbicides did not affect bermudagrass root strength in either year. PRE herbicide treatments did not reduce root development in bermudagrass in 2000. However, dithiopyr applied at 0.84 and 2.5 kg/ha reduced bermudagrass rooting by 59 and 70%, 60 DAIT, in 2001. Pendimethalin reduced root development of bermudagrass by 62% when applied at 10.2 kg/ha, three times the maximum use rate, in 2001. However, by 120 DAIT, only dithiopyr applied at 2.5 kg/ha decreased bermudagrass root development.

Type
Research
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

Bhowmik, P. C. 1987. Effects of amidochlor on shoot growth and seedhead suppression in cool-season turfgrass. HortScience 22: 6365.Google Scholar
Bingham, S. W. and Hall, J. R. 1985. Effects of herbicides on bermudagrass (Cynodon spp.) sprig establishment. Weed Sci. 33: 253257.Google Scholar
Dickens, R., Sharpe, S. S., and Turner, D. L. 1989. Herbicide effects on tensile strength and rooting of Zoysiagrass sod. J. Prod. Agric. 2: 369373.Google Scholar
Fishel, F. M. and Coats, G. E. 1994. Bermudagrass (Cynodon dactylon) sod rooting as influenced by preemergence herbicides. Weed Technol. 8: 4649.Google Scholar
Jagschitz, J. A. 1977. Development of rooting of Kentucky bluegrass sod as affected by herbicides. In Beard, J. B., ed. Proceedings of the Third International Turfgrass Research Conference; July 11–13; Munich, Germany. Madison, WI: American Society of Agronomy. pp. 227235.Google Scholar
Lewis, W. M., DiPaola, J. M., and Bruneau, A. H. 1988. Effects of pre-emergence herbicides on turfgrass rooting. Grounds Maintenance January:4849.Google Scholar
Reicher, Z. J. and Christains, N. E. 1989. Establishment of Kentucky bluegrass sod following application of herbicides. HortScience 24: 799801.Google Scholar
Ross, S. J., Ennos, A. R., and Fitter, A. H. 1991. Turf strength and root characteristics of ten turfgrass cultivars. J. Appl. Biol. 118: 433443.Google Scholar
Sharpe, S. S., Dickens, R., and Turner, D. L. 1989. Herbicide effects on tensile strengths and rooting of bermudagrass (Cynodon dactylon) sod. Weed Technol. 3: 353357.Google Scholar
Vaughn, K. C. and Lehnen, L. P. 1991. Mitotic disrupter herbicides. Weed Sci. 39: 450457.CrossRefGoogle Scholar
Vencill, W. K. 2002. Herbicide Handbook. 8th ed. Lawrence, KS: Weed Science Society of America.Google Scholar