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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2006 Proceedings-SWSS.pdf#page=198
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): | Estes, A. G.;
McCarty, L. B. |
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| Author Affiliation: | Department of Horticulture, Clemson University, Clemson, SC |
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| Title: | Dollarweed (Hydrocotyle spp.) and Virginia buttonweed (Diodia virginiana) control in bermudagrass turf with various postemergent herbicides |
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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. 125. |
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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; Diodia virginiana; Herbicide efficacy; Herbicide evaluation; Hydrocotyle umbellata; Postemergence herbicides; Weed control
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| Abstract/Contents: | "Dollarweed and Virginia buttonweed are two hard-to-control weeds common in moist to wet turf sites. Dollarweed is propagated from seed, rhizomes, and tubers while Virginia buttonweed is propagated by seed, roots and stem fragments. Due to their reproductive potential, controlling these two weeds becomes challenging. Therefore, in the summer of 2005, two studies were conducted to evaluate the efficacy of several sulfonylurea herbicides alone and in tank combinations with carfentrazone against these two weeds. Treatments for the studies included: Monument 75 DF at 0.03 lb ai/A, Monument at 0.03 lb ai/A + Quick Silver 1.9 L at 0.03 lb ai/A, Manor 60 DF at 0.02 lb ai/A, Manor at 0.02 lb ai/a + Quick Silver at 0.03 lb ai/A, Revolver 0.19 SC at 0.04 lb ai/A, Revolver 0.04 lb ai/A + Quick Silver at 0.03 lb ai/A and Atrazine 4L at 1.0 lb ai/A+ Banvel 4L at 0.125 lb ai/A, + Manor at 0.02 lb ai/A. Ratings taken throughout the studies included Dollarweed and Virginia Buttonweed control on a 0 to100% scale, where 0 = no control and 100 = complete control. In addition, 'Tifway' Bermudagrass (Cynodon dactylon x transvaalensis) phytotoxicity was rated on a 0 to 100% where 0 = no injury and 100 = dead turf and 30 was deemed the maximum acceptable level of injury. Initial treatment for the dollarweed study was on June 16, 2005. Initial treatment for the Virginia buttonweed study was June 16, 2005 with a sequential application on August 2, 2005. Dollarweed control on July 1, 2005 (15 day after treatment) was > 90 percent from atrazine + Banvel + Manor, with Monument alone, Monument + Quick Silver, and Manor alone, and Manor + Quick Silver providing ~ 80 percent control. On August 2, 2005 (47 DAT) all treatments provided > 90 percent dollarweed control. This was after a single application and control was season long. Virginia buttonweed control on July 1, 2005 (15 DAT) was ~ 70% control from the atrazine + Banvel + Manor treatment, with all other treatments providing < 60 percent control. On August 2, 2005 (47 DAT) ~ 80 percent control was provided by Monument + Quick Silver, with all other treatments providing < 70 percent control. After a sequential application on August 2, 2005, Virginia buttonweed control on September 20, 2005 (49 DAST) indicated Monument + Quick Silver was providing greatest control at ~ 75 percent control, with all other treatments providing < 70 percent control. Future research at Clemson University will be to investigate new and existing herbicides for dollarweed and Virginia buttonweed control including adjusting rates and timings of treatments. In addition, we will evaluate the efficacy of various herbicide combinations." |
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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):
Estes, A. G., and L. B. McCarty. 2006. Dollarweed (Hydrocotyle spp.) and Virginia buttonweed (Diodia virginiana) control in bermudagrass turf with various postemergent herbicides. South. Weed Sci. Soc. Proc. 59:p. 125. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2006 Proceedings-SWSS.pdf#page=198
Last checked: 07/18/2013
Requires: PDF Reader
Notes: Item is within a single large file |
| 
MSU catalog number: b2207931 |
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