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| Web URL(s): | http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO-105-4-S2.1#page=11
Last checked: 05/12/2015
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| Publication Type:
| Report |
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| Author(s): | Tomaso-Peterson, M. |
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| Author Affiliation: | Mississippi State, MS |
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| Title: | Fungicide resistance in turfgrass systems: A case study in benzimidazole and QoI resistance |
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| Section: | Southern Division Meeting abstracts
Other records with the "Southern Division Meeting abstracts" Section
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| Meeting Info.: | Atlanta, Georgia: February 1-2, 2015 |
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| Source: | Phytopathology. Vol. 105, No. 4S, April 2015, p. S2.11. |
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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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| Keywords: | TIC Keywords: Benzimidazoles; Case studies; Colletotrichum graminicola; Disease control; Fungicide efficacy; Fungicide evaluation; Fungicide resistance; QoI fungicides; Thiophanate-methyl
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| Abstract/Contents: | "Golf course putting greens may receive more than 30 fungicides applications per growing season. The golfer's expectation to maintain pristine putting green surfaces requires the reliance on fungicides for disease control. The benzimidazoles were the first single-site penetrant fungicides applied for turfgrass disease control. Within three years of use, fungicide resistance was reported in the dollar spot pathogen. After 25 years, Colletotrichum cereal, causal organism of turfgrass anthracnose, was reported to be resistant to the benzimidazole, thiophanate-methyl. Shortly after the introduction of the QoI fungicide, azoxystrobin, control failures for anthracnose were also noted. Both the benzimidazole and QoI fungicides have single-site modes of action increasing the risk of fungicide resistance among turfgrass pathogen populations with qualitative sensitivity distributions. A survey of creeping bentgrass putting greens was conducted in southern states to determine the occurrence of benzimidazole and QoI resistance in populations of C. Cereale. Fungicide sensitivity assays were determined for isolates collected from putting greens with a history of thiophanate-methyl and azoxystrobin applications. All C. Cereal isolates showed a lack of sensitivity to both fungicides. Molecular confirmation at the benzimidazole and QoI target sites, tubulin and cytochrome b proteins, respectively, supported results of multiple resistance." |
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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):
Tomaso-Peterson, M. 2015. Fungicide resistance in turfgrass systems: A case study in benzimidazole and QoI resistance. Phytopathology. 105(4S):p. S2.11. |
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| Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO-105-4-S2.1#page=11
Last checked: 05/12/2015
Requires: PDF Reader
Access conditions: Item is within a limited-access website
Notes: Item is within a single large file |
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MSU catalog number: b2219736a |
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