Tolerance of Seashore Paspalum (Paspalum vaginatum) and Bermudagrass (Cynodon dactylon) on Putting Greens to Xonerate (amicarbazone)


  • Hennen Dock Cummings Department of Wildlife, Sustainability, and Ecosystem Sciences, Tarleton State University, Stephenville, TX 76402


seashore paspalum (Paspalum vaginatum), bermudagrass (Cynodon dactylon), Xonerate, amicarbazone, tolerance


On seashore paspalum and bermudagrass putting greens maintained at 7/32" at the Turfgrass Field Laboratory at Tarleton State University in Stephenville, TX, Xonerate 4 SC (amicarbazone) was applied at 2.8, 5.6, and 11.2 fl oz/A, and Xonerate 70 WG was applied at 4 oz/A on 6/03/2013.  All treatments included a 2 week sequential application except 11.2 fl oz/A, and 5.6 fl oz/A was evaluated with and without a 2 week sequential application.  Plots were evaluated from 6/03 to 8/15/2013 for chlorophyll indices and visual quality and for visual injury from 6/03 to 7/12/2013.  Although no treatments caused unacceptable injury, there may be some susceptibility issues in seashore paspalum since plot boarders that received spray treatment overlap were injured.  Xonerate 5.6 fl oz/A with a sequential application was the most injurious treatment followed by Xonerate 70 WG.  Seashore paspalum was more susceptible to amicarbazone.  Amicarbazone may have plant growth regulator properties as a period of rapid growth followed a 3.9"rain event resulting in scalping in bermudagrass near the end of the trial.  Amicarbazone appeared to have a long soil residual as broadleaf weeds were suppressed greater than 60 days in an area where remaining spray solutions were applied.

Author Biography

Hennen Dock Cummings, Department of Wildlife, Sustainability, and Ecosystem Sciences, Tarleton State University, Stephenville, TX 76402

Department of Wildlife, Sustainability, and Ecosystem Sciences, Assistant Professor, Former Director of Turfgrass Management,
Tarleton State University, Member of The Texas A&M University System


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How to Cite

Cummings, H. D. (2020). Tolerance of Seashore Paspalum (Paspalum vaginatum) and Bermudagrass (Cynodon dactylon) on Putting Greens to Xonerate (amicarbazone). Texas Journal of Agriculture and Natural Resources, 32, 42–55. Retrieved from



Research Articles