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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2004%20Proceedings-SWSS.pdf#page=298
Last checked: 07/17/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Montgomery, D. P.;
Martin, D. L.;
Cargill, L. M. |
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| Author Affiliation: | Horticulture and Landscape Architecture Department, Oklahoma State University, Stillwater, OK |
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| Title: | Roadside weed control with flazasulfuron |
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| Section: | Vegetation management in utilities, railroads & highway rights-of-way; industrial sites
Other records with the "Vegetation management in utilities, railroads & highway rights-of-way; industrial sites" Section
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| Meeting Info.: | Memphis, Tennessee: January 26-28, 2004 |
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| Source: | Proceedings: Southern Weed Science Society: 57th Annual Meeting. Vol. 57, 2004, p. 200. |
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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: Flazasulfuron; Herbicide efficacy; Herbicide evaluation; Roadside turf; Summer annual weeds; Weed control; Winter weeds
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| Abstract/Contents: | "Three roadside weed control trials were conducted during 2002 and 2003 to evaluate flazasulfuron for its effectiveness in controlling both winter and summer weed species. Treatments of flazasulfuron at 1.5, 2.25, and 3.0 oz. prod. /A alone, and when combined with Roundup Pro at 1 pt. prod. /A were applied in May of 2002 to evaluate their effectiveness in controlling johnsongrass (Sorghum halapense). In a similar study these same treatments were applied in November 2002 to young downy brome (Bromus Tectorum) and hairy vetch (Vicia villosa) to determine efficacy. In 2003 flazasulfuron at 3.0 and 6.0 oz. prod. /A alone, and when combined with either MSMA at 2 qts. prod. /A or Roundup Pro at 1 pt. prod. /A were applied in early June to marestail (Conyza candadensis) and Illinois bundleflower (Desmanthus illinoensis). All treatments of flazasulfuron alone included a non-ionic surfactant at a rate of 0.25% V/V. In each of these studies treatments were applied to 5 by 15 foot plots using a CO2 powered boom sprayer calibrated to deliver 20 gallons of spray solution per acre. Treatments were replicated 3 times in each study in a randomized complete block design. Visual weed control ratings were taken on one month intervals following applications. Ratings were collected on weed efficacy and bermudagrass injury and/or green-up delay. Flazasulfuron applied alone did not provide acceptable control of johnsongrass. However, when the 3.0 oz. prod./A rate was combined with Roundup Pro 83% control of johnsongrass was achieved and maintained through 2 and 3 MAT evaluations. This would be acceptable control for current roadside programs and was similar to the standard treatment of Outrider at 1.0 oz. prod./A plus Roundup Pro at 1 pt. prod./A. Very little bermudagrass injury was produced from any flazasulfuron treatments. Flazasulfuron at 3 oz. prod. /A applied alone in the fall to young downy brome plants produced 83% control at 6 MAT evaluations. Control dropped to moderate and unacceptable levels at lower rates. The addition of Roundup Pro at 1 pt. prod. /A increased downy brome control to 98% the following spring. All treatments of flazasulfuron alone, or combined with Roundup Pro, produced excellent control of hairy vetch. Hairy vetch control at 6 MAT evaluations ranged from 93 to 100%. No treatments produced any bermudagrass injury or green-up delay in this study. Flazasulfuron at 3.0 or 6.0 oz. prod. /A applied alone or combined with MSMA or Roundup Pro produced excellent control of marestail at 2 and 3 MAT evaluations. Control ranged from 92 to 100%. However, only moderate control of the perennial broadleaf Illinois bundleflower was achieved from flazasulfuron alone. The addition of MSMA or Roundup Pro significantly increased control of Illinois bundleflower at both 2 and 3 MAT evaluations. Illinois bundleflower control with flazasulfuron at 3 oz. prod. /A with the addition of MSMA or Roundup Pro was acceptable at 85 to 88%. Slight temporary bermudagrass injury was produced by all treatments but was acceptable for roadsides. Bermudagrass chlorosis ranged from 5 to 18% and persisted up to 1 MAT." |
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| Language: | English |
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| References: | 0 |
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| Note: | "The changing world of weed science"
This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Montgomery, D. P., D. L. Martin, and L. M. Cargill. 2004. Roadside weed control with flazasulfuron. South. Weed Sci. Soc. Proc. 57:p. 200. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2004%20Proceedings-SWSS.pdf#page=298
Last checked: 07/17/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: b2207931 |
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