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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2012 Proceedings-SWSS.pdf#page=212
Last checked: 08/07/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Hubbard, R.;
Estes, A. G.;
McCarty, B. |
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| Author Affiliation: | Clemson University, Clemson, SC |
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| Title: | Evaluation of SureGuard for preemergence crabgrass control in bermudagrass turf |
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| Section: | Weed management in turf crops
Other records with the "Weed management in turf crops" Section
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| Meeting Info.: | Charleston, South Carolina: January 23-25, 2012 |
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| Source: | 2012 Proceedings, Southern Weed Science Society. Vol. 65, 2012, p. 140. |
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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: Crabgrass control; Cynodon dactylon; Flumioxazin; Herbicide efficacy; Herbicide evaluation; Preemergence weed control
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| Trade Names: | SureGuard |
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| Abstract/Contents: | "Sureguard (flumioxazin 51WDG) is being developed for postemergence winter annual weed control in dormant bermudagrass. However, treated areas also have provided a certain level of preemergence crabgrass control. Therefore, four studies were conducted in upstate South Carolina to investigate the efficacy of Sureguard for preemergence control of smooth crabgrass (Digitaria ischaemum) in bermudagrass turf. Treatments were applied with a CO2 backpack sprayer calibrated at 20 GPA, using 8003 flat fan spray nozzles. Treatments were replicated three times. Data was analyzed using ANOVA with means separated by LSD (α=0.05). Treatments for Study 2010a included: SureGuard at 12 oz/A (0.375 lb.ai/A) + non-ionic surfactant at 0.25 % V/V, applied Nov 4 and Dec 4, 2009 and Jan 6, Feb 4, Mar 3 and Apr 8, 2010. Treatments for Study 2010b included: SureGuard at 4 oz/A, 8 oz/A, and 12 oz/A, SpeedZone (2L) at 4 pt/A (1.00 lb ai/A), Barricade (prodiamine 4L) at 0.75 lb ai/A, and Roundup (glyphosate 4L) at 0.50 lb ai /A + Barricade at 0.75 lb ai/A. All applications of SureGuard included non-ionic surfactant at 0.25 % V/V. All treatments for Study 2010b were applied on Mar 3, 2010. Treatments for Study 2011a included: SureGuard at 6 oz/A and 12 oz/A, with each rate applied Nov 9 and Dec 10, 2010 and Jan 17, Feb 8, Mar 11 and Apr 13, 2011. All applications of SureGuard included non-ionic surfactant at 0.25 % V/V. An additional treatment of Roundup at 0.50 lb ai /A + Ronstar (oxadiazon 3.8L) at 2.0 lb ai/A was applied Feb 8, 2011. Treatments for Study 2011b included: SureGuard at 12 oz/A, Barricade at 1.50 lb ai/A, SureGuard at 12 oz/A followed by Barricade at 0.75 lb ai/A, SureGuard at 8 oz/A followed by Barricade at 0.75 lb ai/A, Barricade at 0.75 lb ai/A twice, and SureGuard at 12 oz/A + Barricade at 0.75 lb ai/A. All applications of SureGuard included non-ionic surfactant at 0.25 % V/V. Initial applications for Study 2010b were made on Mar 11, 2011, with subsequent applications on May 2, 2011 (8WAIT). Visual ratings for Study 2010a were Jun 8 and Oct 5 and Jun 8 and Oct 5 (216 and 335 DAI) for Study 2010b. Visual ratings for Study 2011a were Jun 10, Jul 20 and Sep 8 and Jun 10, Jul 20, Aug 17 and Sep 8 (91, 131, 159 and 181 DAI) for Study 2011b. Ratings for crabgrass control were based on a scale of 0-100%, with 100% representing complete control. November SureGuard applications burned pre-dormant bermudagrass, but did not delay greenup the following spring. SureGuard at 12 oz/A applied once during the months of Jan through Apr provided >90% preemergence crabgrass control through Jun. SureGuard at 12 oz/A applied once Mar or Apr provided >90% control through Oct. SureGuard at 6 oz/A applied once during the months of Feb through Apr provided >90% control through Jun. SureGuard at 6 oz/A applied once during the months of Jan through Apr provided > 70% control through Sep. SureGuard at 12 oz/A applied in Mar provided 100% preemergence crabgrass control thru Jun (216 DAI) and >80% control thru Oct (335 DAI). SureGuard at 8 oz/A applied in Mar provided >80% control thru Jun and >60% control thru Oct. SureGuard at 4 oz/A applied in Mar 3 provided essentially no subsequent preemergence crabgrass control. All treatments in Study 2011b provided 100% preemergence crabgrass control thru Jun (91 DAI) and >=95% control thru Jul (131 DAI). All treatments provided >90% control thru Sep (181 DAI), except SureGuard at 8 oz/A followed by Barricade at 0.75 lb ai/A which provided 88% control and Barricade followed by Barricade at 0.75 lb ai/A which provided 81% control. Overall, SureGuard at >8 oz/A applied during winter months provided subsequent preemergence crabgrass control. Future research will continue screening new and experimental herbicides for preemergence crabgrass activity. Research with herbicides used in these studies will continue to evaluate additional combinations and timings." |
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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):
Hubbard, R., A. G. Estes, and B. McCarty. 2012. Evaluation of SureGuard for preemergence crabgrass control in bermudagrass turf. South. Weed Sci. Soc. Proc. 65:p. 140. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2012 Proceedings-SWSS.pdf#page=212
Last checked: 08/07/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: b2207931 |
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