Full TGIF Record # 225180
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Web URL(s):http://www.swss.ws/wp-content/uploads/docs/2005 Proceedings-SWSS.pdf#page=202
    Last checked: 07/18/2013
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i
Report
Author(s):Hubbard, L. R.; Estes, A. G.; McCarty, L. B.
Author Affiliation:Department of Horticulture, Clemson University, Clemson, SC
Title:Selective dallisgrass (Paspalum dilatatum) control in bermudagrass turf
Section:Weed management in turfgrass
Other records with the "Weed management in turfgrass" Section
Meeting Info.:Charlotte, North Carolina: January 24-26, 2005
Source:Proceedings of the 58th Annual Meeting of the Southern Weed Science Society. Vol. 58, 2005, p. 127.
Publishing Information:Champaign, Illinois: Southern Weed Science Society
# of Pages:1
Keywords:TIC Keywords: Cynodon dactylon; Herbicide efficacy; Herbicide evaluation; Paspalum dilatatum; Selective herbicides
Abstract/Contents:"Dallisgrass (Paspalum dilatatum) is a clumping perennial grass weed common in turf areas. Dallisgrass produces unsightly seedheads in the summer and disrupts the uniformity of the turf. The purpose of this research was to investigate the efficacy of various postemergence herbicides for possible dallisgrass control in bermudagrass turf. In summer of 2004, a study was conducted by Clemson University on bermudagrass golf course rough in Anderson, SC, investigating postemergence dallisgrass control. Treatments were applied with a CO2 backpack sprayer calibrated at 20 GPA, at 31 PSI, using 8003 flat fan spray tips. Plot sizes measured 2.0 m by 3.0 m. Treatments were replicated three times. Treatments included: MSMA (6.6 SC) at 2.0 lb ai/A (0 fb 7 fb 14 DAI); MSMA + Sencor (75 DF) at 2.0 lb ai/A + 0.25 lb ai/A (0 fb 7 fb 14 DAI); Plateau (2.0 L) at 0.09 lb ai/A (0 fb 28 DAI); Plateau + MSMA at 0.09 lb ai/A + 2.0 lb ai/A (0 fb 28 DAI); Monument (75 WG) at 0.03 lb ai/A (0 fb 14 fb 28 DAI); Monument + MSMA at 0.03 lb ai/A + 2.0 lb ai/A (0 fb 14 fb 28 DAI); Katana (25 DG) at 0.09 lb ai/A (0 fb 14 fb 28 DAI); Katana + MSMA at 0.09 lb ai/A + 2.0 lb ai/A (0 fb 14 fb 28 DAI); Revolver (0.19 SC) at 0.04 lb ai/A (0 fb 14 fb 28 DAI); and Revolver + MSMA at 0.04 lb ai/A + 2.0 lb ai/A (0 fb 14 fb 28 DAI). Initial applications were made on June 23, 2004. All treatments received non-ionic surfactant at 0.25% V/V. Visual ratings were taken 7 DAI, 21 DAI, 28 DAI, 35 DAI, and 42 DAI. Ratings for dallisgrass control were based on a scale of 0-100%, with 0% representing no control and 100% representing complete control. Ratings for bermudagrass injury were based on a scale of 0-100%, with 0% representing no damage and 100% representing dead turf. All treatments containing MSMA provided good (>=70%) dallisgrass control at 28 DAI and excellent (>=90%) control at 42 DAI. All three sulfonylureas in the study (Monument, Katana and Revolver) tank-mixed with MSMA (2.0 lb ai/A) provided excellent (>90%) control at 42 DAI, but provided significantly less control (<70%) at 42 DAI when applied at the same rates and timings without MSMA. Bermudagrass injury was acceptable (<5%) with all treatments during entire study, except for Plateau and Plateau + MSMA. Future research will continue screening new and experimental herbicides, applied with and without MSMA, for dallisgrass activity. Research with herbicides in this study will continue to evaluate additional combinations and timings. Future research will examine staggered treatment timings with MSMA followed by various sulfonylurea herbicides."
Language:English
References:0
Note:"The changing world of weed science"
This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hubbard, L. R., A. G. Estes, and L. B. McCarty. 2005. Selective dallisgrass (Paspalum dilatatum) control in bermudagrass turf. South. Weed Sci. Soc. Proc. 58:p. 127.
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http://www.swss.ws/wp-content/uploads/docs/2005 Proceedings-SWSS.pdf#page=202
    Last checked: 07/18/2013
    Requires: PDF Reader
    Notes: Item is within a single large file
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