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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2010 Proceedings-SWSS.pdf#page=191
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): | McElroy, J. S.;
Rose, J. J.;
McCullough, P. E. |
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| Author Affiliation: | McElroy and Rose: Auburn University, Auburn, AL; McCullough: The University of Georgia, Griffin, GA |
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| Title: | Utilizing nicosulfuron-herbicide mixtures for MSMA replacement weed control in turfgrass |
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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. 141. |
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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: Application methods; Cynodon dactylon; Digitaria ischaemum; Eleusine indica; Herbicide combinations; Herbicide evaluation; MSMA; Nicosulfuron; Paspalum dilatatum
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| Abstract/Contents: | "MSMA usage in turfgrass is being phased out through 2013; therefore, replacement herbicides are being explored. Nicosulfuron has shown potential as a herbicide replacement for MSMA. Nicosulfuron controls many common turfgrass weeds such as crabgrass (Digitaria spp.) and goosegrass (Eleusine indica). Our objective was to evaluate nicosulfuron control of turfgrass weeds when applied alone and in combination with other herbicides with potential MSMA weed species control. Smooth crabgrass- (Digitaria ischaemum; 3 trials; initiated 1 May, 20 May, or 12 June), goosegrass- (1 trials; initiated 9 July), and dallisgrass (Paspalum dilatatum; 1 trial; initiated 24 Aug)-control trials were conducted at the University of Georgia, Griffin, GA (UGA); Auburn University, Auburn, AL (AU); or Auburn University Plant Breeding Unit, Tallassee, AL; (PBU) in unimproved bermudagrass (Cynodon dactylon) turf. Smooth crabgrass and goosegrass treatments included nicosulfuron-alone (0.10 kg/ha) or in combination with quinclorac (0.84 kg/ha), rimsulfuron (0.04 kg/ha), sulfentrazone (0.42 kg/ha), imazethapyr (0.07 kg/ha), or imazaquin (0.56 kg/ha) which were applied at one and/or two application timings. Repeat applications were made 3-weeks after initial treatment. Dallisgrass treatments included nicosulfuron-alone (0.10 kg/ha) or in combination with imazapic (0.04 kg/ha), rimsulfuron (0.04 kg/ha), foramsulfuron (0.03 kg/ha), imazethapyr (0.07 kg/ha), and imazaquin (0.56 kg/ha) which were applied twice at 3-week intervals. Smooth crabgrass, goosegrass, dallisgrass control, as well as bermudagrass (Cynodon dactylon) injury, were visually rated on a 0 to 100% control/injury scale. Treatments and visual ratings were conducted as previously described. In both experiments, treatments were arranged as a randomized complete block (reps=3). Data for all studies was subject to ANOVA (P = 0.05) and means separated by Fisher's protected LSD (P = 0.05). Overall, repeat applications of nicosulfuron plus other herbicides applied twice were more effective than single applications. At 8 weeks after application (WAA), quinclorac applied once alone, once in combination with nicosulfuron, and twice in combination with nicosulfuron, resulted in 84%, 63%, and 81% crabgrass control, respectively, at the UGA location. Smooth crabgrass control with quinclorac applied once alone and once in combination with nicosulfuron at AU and PBU was less than 60%. Quinclorac applied twice in combination with nicosulfuron controlled smooth crabgrass 70-81% at all locations. Nicosulfuron plus imazaquin and imazethapyr applied once or twice controlled smooth crabgrass >70% at AU and PBU, but not UGA. At 8 WAA, all twice-applied treatments controlled goosegrass greater than 78% at UGA. All nicosulfuron combinations twice applied controlled goosegrass greater than equal to MSMA-alone (78%). At 8 WAA, nicosulfuron plus imazaquin controlled dallisgrass 75% at AU. Few herbicide combinations were effective for dallisgrass control. At 8 WAA, nicosulfuron plus imazapic or imazethapyr controlled dallisgrass 75 or 82%, respectively. Nicosulfuron alone or nicosulfuron plus imazaquin controlled dallisgrass 63 and 58%, respectively; greater than MSMA (53%). Nicosulfuron plus imazaquin injured bermudagrass 27% 1 WAA, the highest observed; however, bermudagrass recovered. In conclusion, beneficial herbicides for combination with nicosulfuron for control of smooth crabgrass, goosegrass, and dallisgrass control include: quinclorac, imazapic, imazaquin, and imazethapyr. Further research will be conducted to define ideal rates, timing, and combinations." |
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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., J. J. Rose, and P. E. McCullough. 2010. Utilizing nicosulfuron-herbicide mixtures for MSMA replacement weed control in turfgrass. South. Weed Sci. Soc. Proc. 63:p. 141. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2010 Proceedings-SWSS.pdf#page=191
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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