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Web URL(s): | http://archive.lib.msu.edu/tic/ressum/2017/252.pdf Last checked: 05/25/2018 Requires: PDF Reader |
Publication Type:
| Report |
Author(s): | Jung, Geunhwa |
Author Affiliation: | University of Massachusetts |
Title: | Management strategies of a Sclerotinia homoeocarpa population with multiple fungicide resistance and multidrug resistance |
Section: | ITM: Pathology Other records with the "ITM: Pathology" Section
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Source: | Turfgrass and Environmental Research Program: 2017 Research Summaries. 2017, p. 252-254. |
Publishing Information: | [New York, New York]: The United States Golf Association Green Section |
# of Pages: | 3 |
Keywords: | TIC Keywords: DMI fungicides; Dicarboximides; Disease control; Dollar spot; Fungicide efficacy; Fungicide evaluation; Fungicide resistance; Sclerotinia homoeocarpa; Succinate dehydrogenase
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Language: | English |
References: | 1 |
See Also: | Other Reports from this USGA research project: 2016-18-568 |
Note: | Graphs |
USGA Summary Points: | Fluxapyroxad (low and high rates, succinate dehydrogenase inhibitor, SDHI), boscalid (high rate, SDHI), fluazinam (an uncoupler of phosphorylation), and EnclaveTM (a four-way mixture of chlorothalonil, tebuconazole, iprodione and thiophanate-methyl) provided better dollar spot control than the dicarboximides (iprodione and vinclozolin) or DMI (low rate of propiconazole). Propiconazole or iprodione application selected isolates with both DMI and dicarboximide resistance (DMI-R/Dicar-R), but controlled isolates with both DMI and benzimidazole resistance (DMI-R/Ben-R). Boscalid application selected DMI-R/Ben-R isolates but controlled DMI-R/Dicar-R isolates. Previously selected DMI-R/Dicar-R or DMI-R/Ben-R isolates decreased after overwintering, in the absence of selection pressure. In addition, the proportion of isolates with DMI, dicarboximide, and benzimidazole resistance (DMI-R/Dicar-R/Ben-R) decreased regardless of fungicide treatment. This is the first report of multiple fungicide resistant population dynamics in response to different fungicide classes and overwintering effects and will help develop effective strategies for managing multiple fungicide resistance and potentially delay the emergence of future resistant populations. |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Jung, G. 2017. Management strategies of a Sclerotinia homoeocarpa population with multiple fungicide resistance and multidrug resistance. USGA Turfgrass Environ. Res. Summ. p. 252-254. |
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| Web URL(s): http://archive.lib.msu.edu/tic/ressum/2017/252.pdf Last checked: 05/25/2018 Requires: PDF Reader |
| MSU catalog number: b3609415 |
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