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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2006 Proceedings-SWSS.pdf#page=199
Last checked: 07/18/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Gannon, Travis W.;
Yelverton, Fred H.;
Warren, Leon S. |
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| Author Affiliation: | North Carolina State University, Raleigh, NC |
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| Title: | Mesotrione for weed control in warm- and cool-season turf |
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| Section: | Weed management in turf grass
Other records with the "Weed management in turf grass" Section
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| Meeting Info.: | San Antonio, Texas: January 23-25, 2006 |
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| Source: | Proceedings: Southern Weed Science Society 59th Annual Meeting. Vol. 59, 2006, p. 126. |
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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: Cool season turfgrasses; Herbicide efficacy; Herbicide evaluation; Mesotrione; Warm season turfgrasses; Weed control
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| Abstract/Contents: | "Much research has recently been completed investigating the applications of mesotrione for weed control in warm- and cool-season turfgrass environments. Research trials were initiated to investigate select annual grass control and turfgrass tolerance with mesotrione applied at various timings. Research trials were initiated in early April to investigate preemergent smooth crabgrass control with mesotrione and included July treatments to evaluate postemergent crabgrass control. At the July application, smooth crabgrass averaged two tillers. Evaluated treatments included mesotrione (4 SC) applied at 0.31 or 0.62 lb ai/a and postemergent treatments included a non-ionic surfactant. Applied preemergent, mesotrione did not provide smooth crabgrass control. However, applied postemergent, mesotrione (0.31 or 0.62 lb ai/a) provided 78 and 95% smooth crabgrass control, respectively at four weeks after treatment. Further, at eight weeks after treatment, the same treatments provided 71 and 86% control, respectively. In a separate trial initiated at the same time, 0.33 or 0.5 lb ai/a mesotrione applied postemergent provided 73 or 90% smooth crabgrass control, respectively, at four weeks after treatment and 60 or 83% control, respectively, at eight weeks after treatment. Evaluated preemergent for goosegrass control, 0.31 or 0.62 lb ai/a mesotrione provided 25 or 50% goosegrass control, respectively, mid-August. By mid-September control remained at 25 and 44% control, respectively. In a separate trial initiated at the same time, 0.33 or 0.5 lb ai/a mesotrione applied preemergent provided 38 and 20% goosegrass control, respectively, mid-August while control decreased by mid-September. Applied early postemergent to goosegrass averaging two leaves, one application of mesotrione (0.19 or 0.25 lb ai/a) provided 11 and 38% control, respectively, at four weeks after treatment while control decreased at eight weeks after treatment. Two applications (0.19 or 0.25 lb ai/a) provided 60 and 75% control, respectively at four and eight weeks after treatment. Tolerance trials were also initiated to investigate the tolerance of tall fescue to mesotrione applied at spring or fall seeding as well as applied to established bermudagrass, centipedegrass, St. Augustinegrass, and tall fescue. With mesotrione applied (0.15, 0.2, 0.25 lb ai/a) at spring seeding and six weeks after seeding, no reductions in tall fescue cover were observed, compared to the nontreated. With mesotrione (0.25 or 0.5 lb ai/a) applied to established tall fescue or centipedegrass, no significant phytotoxicity was observed. However, when applied to established bermudagrass or St. Augustinegrass, phytotoxicity (20-30%) was observed. These data indicate mesotrione will provide a measure for selective weed control in warm and cool season turfgrass environments." |
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| Language: | English |
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| References: | 0 |
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| Note: | "Vision for the future"
This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Gannon, T. W., F. H. Yelverton, and L. S. Warren. 2006. Mesotrione for weed control in warm- and cool-season turf. South. Weed Sci. Soc. Proc. 59:p. 126. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2006 Proceedings-SWSS.pdf#page=199
Last checked: 07/18/2013
Requires: PDF Reader
Notes: Item is within a single large file |
| 
MSU catalog number: b2207931 |
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