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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2005 Proceedings-SWSS.pdf#page=197
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): | Higingbottom, J. K.;
Estes, A. G.;
McCarty, L. B. |
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| Author Affiliation: | Clemson University, Clemson, SC |
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| Title: | Goosegrass (Eleusine indica) control in common bermudagrass (Cynodon dactylon) |
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| Section: | Weed management in turfgrass
Other records with the "Weed management in turfgrass" Section
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| Meeting Info.: | Charlotte, North Carolina: January 24-26, 2005 |
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| Source: | Proceedings of the 58th Annual Meeting of the Southern Weed Science Society. Vol. 58, 2005, p. 122. |
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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: Cynodon dactylon; Eleusine indica; Goosegrass control; Herbicide efficacy; Herbicide trials
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| Abstract/Contents: | "Goosegrass (Eleusine indica) continues to plague many golf courses and athletic fields throughout the Southeast. Since goosegrass can live under low-oxygen conditions, it often concentrates near cart paths and of areas of heavy traffic. Herbicide resistance has been observed in goosegrass to Dinitroanaline herbicides. Many turf managers have continued to use Dinitroanaline herbicides and have strictly used postemergence as their lone source for goosegrass control. Recently, new postemergence herbicides have been introduced into the turf industry that may have promise to effectively control goosegrass in common bermudagrass (Cynodon dactylon) turf. In 2004, Clemson University performed two trials located at the The Rock at Jocassee golf course to evaluate products to control goosegrass. A preemergence trial was initiated in March 2004 to evaluate selected preemergence herbicides for control of goosegrass in a common bermudagrass rough mowed at 2 in. Treatments (lb ai/a) included: Single and sequential applications of Pendulum (3.0; 1.5 fb 1.5), Barricade (0.75; 38 fb 0.38), Dimension (0.5; 0.25 fb 0.25), Ronstar (3.0; 2.0 fb 1.0), Surflan (3.0; 1.5 fb1.5), Regal Star II (3.0; 1.5 fb 1.5). Initial treatments were applied on March 30th and sequential applications were applied 8 weeks later on May 21st. A postemergence trial was initiated in July 2004 to evaluate selective postemergence control of mature goosegrass in a common bermudagrass rough mowed at 2 in. Treatments (lb ai/a) included: Revolver (0.039), Revolver (0.025), Monument (0.03), Illoxan (1.0), MSMA + Sencor (2.0 + 0.25), Revolver + Sencor (0.039 + 0.25), Monument + Sencor (0.03 + 0.25). All treatments had a non ionic surfactant added at a rate of 0.25 % v/v. Initial treatments were applied on July 6th with each treatment receiving a second application 17 days after initial treatment (DAIT) on July 23rd. Turf injury >30% was deemed unacceptable. Preemergence Trial. All Dinitroanaline herbicides failed to provide adequate control. The split rate of Surflan at 1.5 lb ai/a and the single application of Pendulum at 3.0 lb ai/a provided the greatest control at ≅30% of all the Dinitroanaline herbicides. Ronstar provided 97% control with 3.0 lb ai/a followed next by the split rate at 2.0 fb 1.0 lb ai/a at 95%. The combination product Regal Star II, also provided excellent control at 92% with the single application of 3.0 lb ai/a. However when Regal Star II was applied at the split rate of 1.5 fb 1.5 lb ai/a, control was 80%. Postemergence Trial. With a single application, the MSMA plus Sencor treatment provided 72% control at 7 DAIT. Although excellent control was observed with the MSMA plus Sencor tank mix, unacceptable bermudagrass turf injury was also observed at 43% but recovered by 44 DAIT. Also at 7 DAIT, the high rate of Revolver at 0.039 lb ai/a and the Revolver plus Sencor tank mix provided 20 and 25% control, respectfully. Reduced injury was observed with the Revolver plus Sencor at 28%. By 23 DAIT, MSMA plus Sencor and Revolver plus Sencor treatments provided 98% control with injury at 23 and 20%, respectfully. MSMA plus Sencor and Revolver plus Sencor provided >=97% control 44 DAIT with no injury present at that time. Revolver, at 0.025 lb ai/a, provided 87% control by 44 DAIT with a maximum of 5% injury occurring at 23 DAIT. Illoxan provided good control at 89% after two applications at 44 DAIT with minimal turf injury at 5% at 23 DAIT. Monument provided minimal (<3%) control throughout the trial and when tanked mixed with Sencor, provided a maximum of 45% control at 23 DAIT. By 44 DAIT, all treatments that initially injured the bermudagrass had fully recovered. In conclusion, Ronstar applied at a single application of 3.0 lb ai/a or a split rate of 1.5 fb 1.5 lb ai/a was the most effective preemergence option. Excellent control was also provided by Regal Star II, containing oxadiazon and prodiamine, when applied at a single application of 3.0 lb ai/a. No advantage was observed by applying split applications of any products for season long control as compared to a single full initial rate. The standard tank mix of MSMA and Sencor continued to provide excellent postemergence control, however unacceptable turf injury followed this application. Interestingly, the Revolver and Sencor tank mix provided equivocal control as the MSMA and Sencor application with half the initial injury. Even though when applied alone, Revolver and Illoxan did not totally eradicate the goosegrass, both products provided excellent results with little to no injury. Revolver alone or tank mixed with Sencor demonstrated promise in providing excellent control and would be a suitable replacement to Illoxan or MSMA plus Sencor tank mix for postemergence control of goosegrass." |
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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):
Higingbottom, J. K., A. G. Estes, and L. B. McCarty. 2005. Goosegrass (Eleusine indica) control in common bermudagrass (Cynodon dactylon). South. Weed Sci. Soc. Proc. 58:p. 122. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2005 Proceedings-SWSS.pdf#page=197
Last checked: 07/18/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: b2207931 |
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