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Coastal Bermudagrass (Cynodon dactylon) Yield Response to Various Herbicides

Published online by Cambridge University Press:  20 January 2017

Twain J. Butler*
Affiliation:
The Samuel Roberts Noble Foundation, 2510 Sam Noble Parkway Ardmore, OK 73401
James P. Muir
Affiliation:
Texas A&M University Research & Extension Center, 1229 N. HW 281, Stephenville, TX 76401
*
Corresponding author' E-mail: [email protected]

Abstract

Several new herbicides have been registered for pasture weed control, but their effect on ‘Coastal’ bermudagrass dry matter (DM) yield has not been documented. The objective of this study was to determine the effect of clopyralid, fluroxypyr, imazapic, picloram, picloram + fluroxypyr, picloram + 2,4-D amine, triasulfuron + dicamba, triclopyr amine + clopyralid, triclopyr ester, triclopyr ester + fluroxypyr, trifloxysulfuron, 2,4-D amine + dicamba, and 2,4-D ester on Coastal bermudagrass yield. Total DM yields of Coastal bermudagrass were not reduced by 0.84 kg/ha clopyralid, 0.031 kg ai/ha triasulfuron + 0.44 kg ai/ha dicamba, 1.205 kg ai/kg 2,4-D amine + 0.42 kg/ha dicamba, and 2.31 kg/ha 2,4-D ester. Although 0.227 kg ai/ha picloram + 0.84 kg/ha 2,4-D amine, 0.945 kg ai/ha triclopyr amine + 0.315 kg ai/ha clopyralid, and 1.68 kg ai/ha triclopyr ester reduced Coastal bermudagrass DM yields in harvest 1, there was no cumulative loss in total production in either 2001 or 2002 with these herbicides compared with that of the nontreated control. Coastal bermudagrass total DM yields were reduced by 52% with 0.158 kg ai/ha imazapic when applied to dormant bermudagrass in 2001, and by 26% with 0.021 kg ai/ha trifloxysulfuron when applied to actively growing bermudagrass in 2001; however, neither herbicide reduced total cumulative yield in 2002. In 2001 and 2002, total DM yield was reduced by an average of 25% with 0.42 kg/ha fluroxypyr, by 45% with 0.105 kg/ha imazapic, by 57% with 0.158 kg/ha imazapic, by 65% with 0.21 kg/ha imazapic, by 25% with 0.56 kg/ha picloram, by 20% with 0.188 kg/ha picloram + 0.188 kg/ha fluroxypyr, and by 18% with 0.63 kg/ha triclopyr ester + 0.21 kg/ha fluroxypyr, when applied to actively growing Coastal bermudagrass.

Type
Research Article
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Ball, D. M., Hoveland, C. S., and Lacefield, G. D. 2002. Southern Forages. 3rd ed. Norcross, GA: Potash and Phosphate Institute and the Foundation for Agronomic Research. Pp. 17.Google Scholar
Bovey, R. W., Meyer, R. E., and Holt, E. C. 1974. Tolerance of bermudagrass to herbicides. J. Range Manage. 27:293296.CrossRefGoogle Scholar
Brooks, J. R., Baumann, P. A., and Morgan, G. D. 1996. Phytotoxicity of postemergence herbicides to Tifton 85, Jiggs, and Coastal bermudagrass (Cynodon dactylon). Proc. So. Weed Sci. Soc. 49:59.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. Vol. I. Ames, IA: Iowa State University Press. Pp. 421429.Google Scholar
Eichhorn, M. M. and Wells, J. W. 1995. Effect of post-emergence weed control herbicides on Coastal bermudagrass. Proc. So. Weed Sci. Soc. 48:90.Google Scholar
Etheredge, L. M. Jr. 2003. Tolerance of forage bermudagrass (Cynodon dactylon (L.) Pers) to imazapic plus 2, 4-D. M.S. thesis. Texas A&M University, College Station, TX. 96 p.Google Scholar
Koger, T. H., Stritzke, J. F., Talioferro, C. M., and Phillips, W. A. 1997. Bermudagrass tolerance to postemergent herbicides. Georgetown, TX: Proc. Am. Forage Grassland Conf. 6:8386.Google Scholar
Mitich, L. W. 1989. Bermudagrass, intriguing world of weeds. Weed Technol. 3:433435.CrossRefGoogle Scholar
Sanders, D. E., Strahan, R. E., and Gentry, G. T. 2001. Weed control with Plateau and Oasis in hybrid bermudagrass hay production. Proc. South. Weed Sci. Soc. 54:7475.Google Scholar
[SAS] Statistical Analysis Systems. 1999. SAS User's Guide, Version 8.0. Cary, NC: Statistical Analysis Systems Institute. 1243 p.Google Scholar
Smith, K. L. 1993. Tolerance of bermudagrass to postemergence herbicides. Developments. Misc. Pub. M-446. Overton, TX: Sandoz Co.Google Scholar
Taliaferro, C. M., Rouquette, F. M. Jr., and Mislevy, P. 2004. Bermudagrass and Stargrass. in Moser, L. E., Burson, B. L., and Sollenberger, L. E., eds. Warm-season (C4) grasses. Monograph 45. Madison, WI: American Society of Agronomy. Pp. 417438.Google Scholar
Tredaway Ducar, J., Dinkins, D. A., Dollar, K. K., Andreason, A. M., and Wasdin, J. W. 2002. Evaluation of imazapic for grass control in bermudagrass hayfields and pastures. Proc. South. Weed Sci. Soc. 55:4546.Google Scholar