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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2011 Proceedings-SWSS.pdf#page=208
Last checked: 08/05/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | McElroy, J. S.;
Flessner, M. L. |
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| Author Affiliation: | Auburn University, Auburn, AL |
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| Title: | Alternatives to MSMA in turf: Part deux |
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| Meeting Info.: | San Juan, Puerto Rico: January 24-26, 2011 |
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| Source: | 2011 Proceedings, Southern Weed Science Society. Vol. 64, 2011, p. 100. |
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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: Digitaria ischaemum; Eleusine indica; Herbicide evaluation; Imazamox; Imazapic; Imazethapyr; MSMA; Nicosulfuron; Paspalum dilatatum; Thiencarbazone + iodosulfuron + dicamba; Weed control
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| Trade Names: | Celsius; Plateau; Accent; Clearcast; Pursuit |
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| Abstract/Contents: | "MSMA is a vital herbicide for weed control in warm-season turfgrass because it controls numerous weeds species at a low price. If the planned phase out of MSMA goes according to EPAs plan, alternative postemergence herbicides will be needed for weed control. Of the three groups of weeds controlled by MSMA grasses, broadleaves, and sedges -grass weeds have the fewest alterative control options. The three primary grass weeds controlled by MSMA in fine turf are crabgrass spp. (Digitaria spp.), goosegrass (Eleusine indica), and dallisgrass (Paspalum dilatatum). or crabgrass spp. control, alterative herbicides include: Drive (quinclorac), Onetime (quinclorac, MCPP, and dicamba), Celsius (thiencarbazone, iodosulfuron, dicamba), and graminicides. For goosegrass control, alternative herbicides include Revolver (foramsulfuron), Dismiss (sulfentrazone), and Illoxan (diclofop). For dallisgrass control, no one specific herbicide can be utilized for control. Thus, research is needed to identify a viable postemergence herbicide treatment for dallisgrass control. Research was conducted to evaluate potential MSMA alternatives for dallisgrass control. A greenhouse and a field study were conducted to test both currently registered and herbicides not registered for turfgrass use. The greenhouse study evaluated single and sequential applications of MSMA at 1.0 lb ai/a, Celsius at 4.9 oz/a, Plateau (imazapic) at 2.0 fl oz/a, Accent (nicosulfuron) at 2.0 oz/a, Clearcast (imazamox) at 16 fl oz/a, and Pursuit (imazethapyr) at 8 oz/a. Applications were applied to 8 week old plants excavated from perennial field plants and sequential applications were made 2 week after initial. The field study evaluated single and sequential applications of MSMA, Celsius, Plateau, and Accent at the same rates. Field research was initiated July 6, 2010 and sequential applications were made 3 weeks after initial. All treatments in both studies were applied at 30 GPA, and all treatments contained 0.25% v/v NIS, except MSMA. Data were subjected to ANOVA (P = 0.05) and means were separated using Fishers protected LSD (P = 0.05). In the greenhouse study, no single application treatments controlled dallisgrass greater than 65% at 58 days after treatment (DAT). Dallisgrass control from sequential applications was: MSMA 40%; Celsius 77%; Plateau 72%; Accent 65%; Clearcast 85%; and Pursuit 68%. These data indicate that all of these alternative herbicides have herbicidal activity on dallisgrass. Field results were not as promising as greenhouse results. Celsius, Plateau, and Accent controlled dallisgrass 37 to 43% 83 DAT; while MSMA applied sequentially controlled dallisgrass 85% 83 DAT. It is obvious that the herbicides tested have potential as MSMA alternatives for dallisgrass control. However, it also obvious that our current approach to controlling dallisgrass with these herbicides is ineffective. Future research will focus on applying the herbicides in the fall and winter, when dallisgrass is more susceptible to herbicides." |
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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):
McElroy, J. S., and M. L. Flessner. 2011. Alternatives to MSMA in turf: Part deux. South. Weed Sci. Soc. Proc. 64:p. 100. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2011 Proceedings-SWSS.pdf#page=208
Last checked: 08/05/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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