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| Web URL(s): | https://scisoc.confex.com/scisoc/2016am/webprogram/Paper98929.html
Last checked: 11/21/2016 |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | McCullough, Patrick E.;
Yu, Jialin;
McElroy, J. Scott;
Czarnota, Mark |
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| Author Affiliation: | McCullough: University of Georgia - Griffin, Griffin, GA; Yu and Czarnota: University of Georgia, Griffin, GA; McElroy: Auburn University, Auburn, AL |
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| Title: | ALS-resistant spotted spurge confirmed in Georgia |
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| Section: | Turfgrass management: Weeds
Other records with the "Turfgrass management: Weeds" Section
C05 turfgrass science
Other records with the "C05 turfgrass science" Section
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| Meeting Info.: | Phoenix, Arizona: November 6-9, 2016 |
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| Source: | ASA, CSSA and SSSA International Annual Meetings. 2016, p. 98929. |
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| Publishing Information: | [Milwaukee, Wisconsin]: [American Society of Agronomy and the Entomological Society of America] |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Acetolactate synthase-inhibiting herbicides; Biotypes; Euphorbia maculata; Mechanism of resistance; Metsulfuron methyl
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| Geographic Terms: | Georgia |
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| Abstract/Contents: | "Metsulfuron is used for postemergence control of spotted spurge in many warm-season turfgrasses. A suspected resistant (R)-biotype of spotted spurge was collected from turfgrass in Georgia with a history of exclusive metsulfuron use. Research was conducted to evaluate the resistance level of this biotype to metsulfuron, efficacy of other mechanisms of action for control, and the molecular basis for resistance. Compared to a susceptible (S)-biotype, the R-biotype required >90 and >135-times greater metsulfuron rates to reach 50% injury and reduce biomass 50% from the nontreated, respectively. The R-biotype was also resistant to trifloxysulfuron, but was injured equivalent to the S-biotype from dicamba, glyphosate, and triclopyr. Gene sequencing of the R-biotype revealed a Trp574 to Leu substitution that has conferred resistance to ALS-inhibitors in previous research. This is the first report of ALS-resistance in spotted spurge." |
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| Language: | English |
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| References: | 0 |
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| See Also: | See also related article "ALS-resistant spotted spurge (Chamaesyce maculata) confirmed in Georgia" Weed Science, 64(2) April-June 2016, p. 216-222, R=286447. R=286447 |
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| Note: | This item is an abstract only!
"103-3" |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
McCullough, P. E., J. Yu, J. S. McElroy, and M. Czarnota. 2016. ALS-resistant spotted spurge confirmed in Georgia. Agron. Abr. p. 98929. |
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Last checked: 11/21/2016 |
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