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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2004%20Proceedings-SWSS.pdf#page=200
Last checked: 07/16/2013
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, L. R.;
Estes, A. G.;
McCarty, L. B. |
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| Author Affiliation: | Department of Horticulture, Clemson University, Clemson, SC |
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| Title: | Selective dallisgrass (Paspalum dilatatum) 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.: | Memphis, Tennessee: January 26-28, 2004 |
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| Source: | Proceedings: Southern Weed Science Society: 57th Annual Meeting. Vol. 57, 2004, p. 102. |
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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; Dallisgrass control; Herbicide efficacy; Herbicide evaluation; Paspalum dilatatum; Postemergence herbicides; Selective weed control
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| Abstract/Contents: | "Dallisgrass (Paspalum dilatatum) is a clumping perennial grass weed common in turf areas. Dallisgrass produces unsightly seedheads in the summer and disrupts the uniformity of the turf. The purpose of this research was to investigate the efficacy of various postemergence herbicides for possible dallisgrass control. In summer of 2003, two studies were conducted at Clemson University investigating postemergence Dallisgrass control. Treatments were applied with a CO2 backpack sprayer calibrated at 20 GPA, at 30 PSI, using 8003 flat fan spray tips. Plot size measured 1.5 m by 1.5 m (study 1) and 2 m by 3 m (study 2), replicated three times. Treatments for Study 1 included: Katana (25 DG) at 0.09 lb ai/A (0 fb 21 DAI); Katana + MSMA (6.6 SC) at 0.09 lb ai/A + 2.0 lb ai/A (0 fb 21 DAI); MSMA at 2.0 lb ai/A (0 fb 7 DAI); MSMA + Sencor (75 DF) at 2.0 lb ai/A + 0.25 lb ai/A (0 fb 7 DAI); Revolver (0.19 SC) at 0.04 lb ai/A (0 fb 21 DAI); Revolver + MSMA at 0.04 lb ai/A + 2.0 lb ai/A (0 fb 21 DAI); and, Revolver at 0.04 lb ai/A (0 DAI) fb MSMA 2.0 lb ai/A (7 DAI). Initial applications for Study 1 were made on June 11, 2003. Treatments for Study 2 included: MSMA at 2.0 lb ai/A (0 fb 7 fb 14 DAI); MSMA + Sencor at 2.0 lb ai/A + 0.25 lb ai/A (0 fb 7 fb 14 DAI); Plateau (2.0 L) at 0.09 lb ai/A (0 fb 30 DAI); Plateau + MSMA at 0.09 lb ai/A + 2.0 lb ai/A (0 fb 30 DAI); Monument (75 WG) 0.03 lb ai/A (0 fb 14 fb 30 DAI); Monument + MSMA at 0.03 lb ai/A + 2.0 lb ai/A (0 fb 14 fb 30 DAI); Katana at 0.09 lb ai/A (0 fb 14 fb 30 DAI); Katana + MSMA at 0.09 lb ai/A + 2.0 lb ai/A (0 fb 14 fb 30 DAI). Initial applications for Study 2 were made on July 23, 2003. All treatments received non-ionic surfactant (Lesco) at 0.25 % V/V. Visual ratings for Study 1 were taken 8 DAI, 14 DAI, 21 DAI, 28 DAI, 35 DAI, 42 DAI, 49 DAI, 58 DAI, and 63 DAI. Visual ratings for Study 2 were taken 8 DAI, 16 DAI, 21 DAI, 28 DAI, 42 DAI, 49 DAI and 57 DAI. Ratings for Dallisgrass control were based on a scale of 0-100%, with 0% representing no control and 100% representing complete control. Ratings for Bermudagrass injury were based on a scale of 0-100%, with 0% representing no damage and 100% representing dead turf. All treatments in Study 1 containing MSMA provided excellent (>90%) Dallisgrass control at 49 DAI, except Katana + MSMA (applied initially + 21 DAI). Revolver + MSMA applied initially + 21 DAI provided excellent control at 49 DAI. However, Revolver applied initially, followed by MSMA at 7 DAI provided only minimal control early (45 % at 21 DAI) and very poor long-term control (8% at 49 DAI). All treatments in Study 2 resulted in excellent (>90%) Dallisgrass control 49 DAI. Bermudagrass injury was acceptable (<30%) with all treatments during entire study, except for Plateau & Plateau + MSMA, which had recovered by 5 WAT. Katana efficacy greatly improved with the addition of a third treatment. Future research will continue screening new and experimental herbicides, applied with and without MSMA, for Dallisgrass activity. Research will continue to evaluate additional combinations and timings in combination with mowing heights and frequencies." |
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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):
Hubbard, L. R., A. G. Estes, and L. B. McCarty. 2004. Selective dallisgrass (Paspalum dilatatum) control in bermudagrass turf. South. Weed Sci. Soc. Proc. 57:p. 102. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2004%20Proceedings-SWSS.pdf#page=200
Last checked: 07/16/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: b2207931 |
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