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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2010 Proceedings-SWSS.pdf#page=187
Last checked: 08/01/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Marvin, J. W.;
Estes, A. G.;
McCarty, L. B. |
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| Author Affiliation: | Clemson University, Clemson, SC |
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| Title: | Poa annua control in creeping bentgrass greens and overseeded fairways |
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| Section: | Weed management in turf
Other records with the "Weed management in turf" Section
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| Meeting Info.: | Little Rock, Arkansas: January 25-27, 2010 |
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| Source: | 2010 Proceedings, Southern Weed Science Society. Vol. 63, 2010, p. 137. |
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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: Agrostis stolonifera; Amicarbazone; Application rates; Application timing; Bispyribac-sodium; Chemical control; Cumyluron; Ethephon; Flurprimidol; Flurprimidol + Trinexapac-ethyl; Herbicide evaluation; Paclobutrazol; Poa annua control; Trinexapac-ethyl
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| Trade Names: | Trimmit; Legacy; Primo; Proxy; Cutless; Velocity |
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| Abstract/Contents: | "Poa annua is a problematic winter annual in both creeping bentgrass greens and overseeded bermudagrass fairways. Poa annua is a prolific seed head producer, causing unsightly and inconsistent playing conditions. In recent years, biotypes have exhibited resistance to many of the conventional chemical controls. The purpose of this study was to evaluate rates and timings of new chemical control products. Various timings and rates were applied starting in September 29, 2008. Repeat applications were made on a 3 week interval, with the exception of the Cumyluron and Amicarbazone treatments. Cumyluron was applied either preventatively on September 29, 2008 or as a split treatment on September 29, 2008 followed by January 12, 2009. Amicarbazone was applied either postemergent on April 6, 2009, or as a split application April 6, followed by April 27, 2009. Product rates were: Trimmit (Paclobutrazol) applied at 4 oz ai/A, Legacy (Trinexapac-ethyl + Flurprimidol) applied at 1.9 oz ai/A, Primo + Proxy (Trinexapac-ethyl + Ethephon) applied at 0.625 oz ai/A + 1.25 oz ai/1000 ft2, Cumyluron applied at 1.56 oz ai/1000 ft2, Cumyluron applied at 1.56 oz ai/1000 ft2, Cutless (Flurprimidol) applied at 3 oz ai/A, Cumyluron applied at 1.56 oz ai/1000 ft2 followed by Amicarbazone at 1.82 oz ai/A, Amicarbazone applied at 0.91 oz ai/A and Amicarbazone applied at 0.91 oz ai/A. Applications were made using a CO2 powered sprayer calibrated at 20 GPA. Creeping bentgrass treatments were replicated one time on the practice green of the Walker Golf Course located in Clemson South Carolina. Cumyluron, Cumyluron split application and Trimmit all provided >90 percent control 213 days after initial application (DAI), May 5, 2009, while Cutless provided >80 percent control. Primo + Proxy, Legacy and Velocity all provided < 20% control on May 5, 2009. Split application of Amicarbazone applied April 6 followed by 27, 2009 provided >50 percent control on May 5, 2009. Single application of Amicarbazone applied April 6, 2009 and Cumyluron applied September 29, 2008 followed by Amicarbazone April 6, 2009 provided ~ 40 percent control on May 5, 2009. Treatments of Primo + Proxy, Trimmit and Legacy all yielded unacceptable turf quality (< 7 on a scale of 1-9 where 9 = best turf) on the rating date of January 12, 2009. Primo + Proxy continued to yield unacceptable turf quality through May 5, 2009, while other treatments returned to acceptable levels, at this time." |
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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):
Marvin, J. W., A. G. Estes, and L. B. McCarty. 2010. Poa annua control in creeping bentgrass greens and overseeded fairways. South. Weed Sci. Soc. Proc. 63:p. 137. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2010 Proceedings-SWSS.pdf#page=187
Last checked: 08/01/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: b2207931 |
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