Full TGIF Record # 225683
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Web URL(s):http://www.swss.ws/wp-content/uploads/docs/2008 Proceedings-SWSS.pdf#page=265
    Last checked: 07/24/2013
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Publication Type:
i
Report
Author(s):Boyd, J. W.
Author Affiliation:Department of Crop, Soil and Environmental Sciences, University of Arkansas, Little Rock, AR
Title:Tufted lovegrass (Eragrostis pectinacea) control in sod
Section:Weed management in turf
Other records with the "Weed management in turf" Section
Meeting Info.:Jacksonville, Florida: January 27-30, 2008
Source:2008 Proceedings, Southern Weed Science Society. Vol. 61, 2008, p. 116.
Publishing Information:Champaign, Illinois: Southern Weed Science Society
# of Pages:1
Keywords:TIC Keywords: Eragrostis pectinacea; Glyphosate; Herbicide efficacy; Herbicide evaluation; Sod production; Weed control; Zoysia japonica
Cultivar Names:Meyer
Abstract/Contents:"Tufted lovegrass is a weed problem for sod farmers because it is not controlled by MSMA, quinclorac, atrazine, simazine or any of the other herbicides used used for postmergence grass control in warm season grasses. The best treatment we have found for tufted lovegrass is glyphosate at 0.23 lb ae/A. However, this treatment is often inconsistent on tufted lovegrass and may cause unacceptable zoysiagrass injury. For these reasons, we conducted several trials during 2006 and 2007, on sod farms to evaluate mesotrione for control of tufted lovegrass in 'Meyer' zoysiagrass. One trial was conducted in common bermudagrass sod. Our results were generally consistent with those of Huckabay, Walker and Belcher. We found that two applications of mesotrione at 0.063 lb ai/A applied about two weeks apart provided 90 to 100% control of tufted lovegrass. Rates greater than 0.063 lb ai/A produced unacceptable zoysiagrass injury and were not necessary for control of lovegrass. Single applications of high rates (0.25 and 0.187 lb ai/A) of mesotrione were not as effective as two applications at lower rates. The interval between applications seemed to be important. Sequential treatments applied approximately 2 weeks apart were significantly more effective than those applied 4 weeks apart. Tank mixing atrazine with mesotrione improved control of lovegrass, especially at lower rates (0.031 lb ai/A). Increasing the atrazine rate from 0.125 lb ai/A to 1.0 lb ai/A did not improve lovegrass control. Under ideal conditions, it may be possible to reduce the rate of mesotrione to 0.031 lb ai/A if it is tank mixed with atrazine at 0.125 to 0.25 lb ai/A. During 2006-2007, a single application of glyphosate at 0.23 lb ae/A was not as consistent as two applications of mesotrione at 0.063 lb ai/A. Fenoxaprop at 0.09 or fluazifop at 0.063 lb ai/A tank mixed with triclopyr ester at 1.0 lb ai/A were ineffective for tufted lovegrass control. Further research needs to be done to determine the effect of mesotrione on the growth rate of zoysigrasses [zoysiagrasses] and the consistency of the 0.031 lb ai/A rate plus atrazine for tufted lovegrass control."
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Boyd, J. W. 2008. Tufted lovegrass (Eragrostis pectinacea) control in sod. South. Weed Sci. Soc. Proc. 61:p. 116.
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http://www.swss.ws/wp-content/uploads/docs/2008 Proceedings-SWSS.pdf#page=265
    Last checked: 07/24/2013
    Requires: PDF Reader
    Notes: Item is within a single large file
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