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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2008 Proceedings-SWSS.pdf#page=264
Last checked: 07/24/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Driver, J. E.;
Keese, R. J.;
Cox, D. L.;
Mosdell, D. K. |
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| Author Affiliation: | Syngenta Crop Protection, Inc., Greensboro, NC |
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| Title: | Tenacity™ - a new weed management tool in turf |
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| Section: | Weed management is turf
Other records with the "Weed management is turf" Section
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| Meeting Info.: | Jacksonville, Florida: January 27-30, 2008 |
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| Source: | 2008 Proceedings, Southern Weed Science Society. Vol. 61, 2008, p. 117. |
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| Publishing Information: | Champaign, Illinois: Southern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Herbicide evaluation; Herbicide labeling; Herbicide profile; Mesotrione; Weed control
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| Trade Names: | Tenacity |
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| Abstract/Contents: | "In December 2007, EPA granted Syngenta Crop Protection, Inc. registration for Tenacity, a new weed management tool for use in golf and sod turf. Over several years of research in turf this product has provided effective control of several important weed species and afforded excellent turf tolerance. The active ingredient in Tenacity is mesotrione. A member of the triketone herbicide family, mesotrione, is derived from a naturally occurring compound with allelopathic properties. It was discovered around the base of the bottle brush plant (Callistemon citrinus). Absorbed by plant roots, shoots, and leaves, mesotrione is distributed within xylem and phloem throughout the plant within 24 hours. The mode of action belongs with the HPPD inhibitors (phydroxyphenylpyruvate dioxygenase) which blocks formation of plastoquinone and subsequent carotenoid production. Treated plants sensitive to mesotrione usually become bleached within 5-7 days followed by necrosis, and plant death. There are some plants that bleach but recover. Tenacity is currently labelled for use on several turf species: St. Augustinegrass (grown for sod only), centipedegrass, Kentucky bluegrass, tall fescue, fine fescue, and perennial ryegrass. Tenacity may also be used on dormant bermudagrass. Use rates vary by species and range from 0.14 kg/ha to 0.28 kg/ha. At these rates preemergence and postemergence control of 34 dicot and 11 monocot species is attainable. A repeat application of Tenacity in 2-3 weeks may be required for adequate control of some weed species. Mesotrione is effective on several tough to control weeds such as yellow nutsedge, common dandelion, white clover, and tufted lovegrass. It also allows selective removal of bentgrass from cool season turf species. Two to three applications of Tenacity will effectively remove bentgrass from cool season turf species. Tufted lovegrass a common weed found in Centipedegrass and St. Augustinegrass sod production is effectively controlled with Tenacity. Multiple applications of mesotrione alone at 0.14 to 0.28 kg/ha during the season controls continuous flushes of lovegrass. Tenacity at 0.14 to 0.28 kg/ha tank mixed with atrazine at 0.28 kg/ha also provides excellent control of tufted lovegrass. Another attribute of Tenacity is the ability to prevent weed competition when applied at seeding. Improved stands and turf quality have been obtained due to removal of the weed competition. Spring, early summer, or fall seeding can be accomplished with no reduction in turf stand or competition from emerging weeds." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Driver, J. E., R. J. Keese, D. L. Cox, and D. K. Mosdell. 2008. Tenacity™ - a new weed management tool in turf. South. Weed Sci. Soc. Proc. 61:p. 117. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2008 Proceedings-SWSS.pdf#page=264
Last checked: 07/24/2013
Requires: PDF Reader
Notes: Item is within a single large file |
| 
MSU catalog number: b2207931 |
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Digitally in TIC by file name: swssp2008 |
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