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| DOI: | 10.1017/wet.2017.57 |
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| Web URL(s): | http://www.bioone.org/doi/full/10.1017/wet.2017.57
Last checked: 03/16/2018
http://www.bioone.org/doi/pdf/10.1017/wet.2017.57
Last checked: 03/16/2018
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https://www.cambridge.org/core/services/aop-cambridge-core/content/view/32D91956ACAE0D6E22BEB2B1AFD40838/S0890037X17000574a.pdf/controlling_dinitroanilineresistant_goosegrass_eleusine_indica_in_turfgrass.pdf
Last checked: 10/02/2017
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| Publication Type:
| Refereed |
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| Author(s): | Breeden, Shane M.;
Brosnan, James T.;
Breeden, Gregory K.;
Vargas, Jose J.;
Eichberger, Gregor;
Tresch, Stefan;
Laforest, Martin |
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| Author Affiliation: | Shane Breeden: Former Graduate Research Assistant, University of Tenessee Institute of Agriculture, Knoxville, TN; Brosnan: Associate Professor, University of Tennessee Institute of Agriculture, Knoxville, TN; Gregory Breeden: Extension Specialist, University of Tennessee Institute of Agriculture, Knoxville, TN; Vargas: Research Associate, University of Tennessee Institute of Agriculture, Knoxville, TN; Eichberger: Bioscience Researcher, Ludwigshafen am Rhein, Germany; Tresch: BASF Corporation, Ludwigshafen am Rhein, Germany; Laforest: Researcher, Saint-Jean-sur-Richelieu R&D Centre, Quebec, Canada |
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| Title: | Controlling dinitroaniline-resistant goosegrass (Eleusine indica) in turfgrass |
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| Section: | Weed management - Other crops/areas
Other records with the "Weed management - Other crops/areas" Section
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| Source: | Weed Technology. Vol. 31, No. 6, 2017, p. 883-889. |
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| Publishing Information: | Champaign, Illinois: Weed Science Society of America |
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| # of Pages: | 7 |
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| Keywords: | TIC Keywords: Application rates; Chemical assay; Dinitroaniline herbicides; Dinitroaniline resistance; Eleusine indica; Evaluations; Foramsulfuron; Goosegrass control; Preemergence weed control; Prodiamine; Topramezone
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| Abstract/Contents: | "Prodiamine is a dinitroaniline herbicide labeled for PRE control of goosegrass in warm- and cool-season turfgrass. In 2013, several golf course roughs in Maryville, TN reported poor goosegrass control (< 20%) following prodiamine treatment at 1,120 g ai ha-1. We harvested suspected prodiamine-resistant (PR) and prodiamine-susceptible (S) goosegrass phenotypes from the field and exposed them to a range of increasing prodiamine concentrations in hydroponic culture. Exposure to prodiamine at 0.001 mM reduced root growth of the S phenotype to 11% of the non-treated check. By comparison, exposure to 0.001 mM prodiamine had minimal effect on the PR phenotype, as root growth was 94% of the non-treated check. Molecular analyses revealed that PR plants contained a threonine (Thr) to isoleucine (Ile) substitution at position 239 on the Ī±-tubulin 1 (TUA1) protein. The substitution, found in all PR plants, is the mechanism of prodiamine resistance in this phenotype. In field studies, topramezone controlled PR goosegrass 72% to 89% by 50 d after treatment (DAT) compared to only 22% to 23% for foramsulfuron. Topramezone treatment injured bermudagrass 34% to 60% from 7 to 14 DAT; however, injury was ā¤ 6% 28 DAT and 0% by the end of the study. Our results indicate that POST applications of topramezone can control dinitroaniline-resistant goosegrass. In addition, we established an easy-to-use genotyping assay to quickly screen goosegrass phenotypes for a target-site mutation (Thr-239-Ile) on TUA1 associated with resistance to dinitroaniline herbicides such as prodiamine. Future research should work to expand this assay for use with other weed species and herbicidal modes of action." |
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| Language: | English |
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| References: | 22 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Breeden, S. M., J. T. Brosnan, G. K. Breeden, J. J. Vargas, G. Eichberger, S. Tresch, et al. 2017. Controlling dinitroaniline-resistant goosegrass (Eleusine indica) in turfgrass. Weed Technol. 31(6):p. 883-889. |
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| DOI: 10.1017/wet.2017.57 |
| Web URL(s):
http://www.bioone.org/doi/full/10.1017/wet.2017.57
Last checked: 03/16/2018
http://www.bioone.org/doi/pdf/10.1017/wet.2017.57
Last checked: 03/16/2018
Requires: PDF Reader
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/32D91956ACAE0D6E22BEB2B1AFD40838/S0890037X17000574a.pdf/controlling_dinitroanilineresistant_goosegrass_eleusine_indica_in_turfgrass.pdf
Last checked: 10/02/2017
Requires: PDF Reader |
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MSU catalog number: b2174615a |
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