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| DOI: | 10.1094/PHYTO-110-7-S1.27 |
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| Web URL(s): | https://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO-110-7-S1.27#page=4
Last checked: 03/16/2021
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Refereed |
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| Content Type: | Abstract or Summary Only |
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| Author(s): | Elliott, M.;
Lee, J.;
Yamada, T.;
Jung, G. |
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| Author Affiliation: | Elliott, Lee, and Jung: University of Massachusetts Amherst, MA; Yamada: Hokkaido University, Sapporo, Japan |
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| Title: | Field assessment of six unique succinate dihydrogenase (SDH) mutations conferring differential resistance to SDHI fungicides in Clarieedia spp. |
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| Section: | 2020 Northeastern Division meeting abstracts
Other records with the "2020 Northeastern Division meeting abstracts" Section
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| Source: | Phytopathology. Vol. 110, No. 7S, July 2020, p. S1.30. |
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| Publishing Information: | Lancaster, Pennsylvania: The Society Intelligencer Printing Company for The American Phytopathological Society |
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| # of Pages: | 1 |
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| Abstract/Contents: | "Dollar spot, caused by Clarireedia spp. (formerly Sclerotinia homoeocarpa F.T. Bennett) is the most economically important turfgrass disease causing considerable damage on golf courses. While cultural practices are available for reducing dollar spot infection, chemical fungicide use is often necessary for maintaining optimal turf quality. Since the release of boscalid in 2003, the succinate dehydrogenase inhibitor (SDHI) class has become an invaluable tool for managing dollar spot, however, resistance to this class has recently been reported. Following SDHI field failure on 4 golf courses and 1 university research plot, the UMass Turf Pathology Lab has identified a total of six unique SDH mutations conferring differential in-vitro sensitivity to SDHIs in Clarireedia spp. In 2018 and 2019 turf research plots at the Joseph Troll Turf Research Facility in South Deerfield, Massachusetts were inoculated with sensitive, non-mutated isolates of Clarireedia, as well as resistant isolates harboring each unique mutation. Field efficacy trials were conducted on inoculated plots to assess differential sensitivity to 5 SDHI active ingredients (boscalid, fluxapyroxad, isofetamid, fluopyram, pydiflumetofen) across mutations under field conditions. Results indicate unique mutations are associated with distinct SDHI sensitivity profiles. This information will be useful in providing sustainable management recommendations for controlling resistant populations of Clarireedia spp." |
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| Language: | English |
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| References: | 0 |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
2020. Field assessment of six unique succinate dihydrogenase (SDH) mutations conferring differential resistance to SDHI fungicides in Clarieedia spp.. Phytopathology. 110(7S):p. S1.30. |
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| DOI: 10.1094/PHYTO-110-7-S1.27 |
| Web URL(s):
https://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO-110-7-S1.27#page=4
Last checked: 03/16/2021
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: b2219736a |
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