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| Web URL(s): | https://wssa.net/wp-content/uploads/WSSA-Virtual-Annual-Meeting-all-abstracts-updated-4-12-2021ab_FINAL.pdf#page=177
Last checked: 11/01/2022
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary Only |
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| Author(s): | Russell, Eli C. |
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| Author Affiliation: | Auburn University, Auburn, AL |
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| Title: | Identification of goosegrass (Eleusine indica) resistant to dithiopyr and dinitroaniline herbicides |
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| Section: | Herbicide resistance in turf, ornamentals and horticultural crops
Other records with the "Herbicide resistance in turf, ornamentals and horticultural crops" Section
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| Meeting Info.: | February 15-19, 2021 |
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| Source: | Abstracts of the Annual Meeting of the Weed Science Society of America. 2021, p. 177. |
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| Publishing Information: | [United States]: Weed Science Society of America |
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| # of Pages: | 1 |
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| Abstract/Contents: | "Goosegrass (Eleusine indica) is a summer annual grassy weed that is a problematic weed in turfgrass. Dithiopyr and dinitroanilines are mitotic-inhibiting herbicides that are commonly used as a preemergent application to control goosegrass. A suspected resistant goosegrass population was collected from a golf course putting green and was evaluated for possible resistance to dithiopyr and prodiamine. After rate response evaluation, the alpha-tubulin gene was sequenced for any target-site mutations that have been reported to confer resistance to mitotic-inhibiting herbicides. A mutation was discovered that resulted in an amino acid substitution at position 136 from leucine to phenylalanine (Leu136Phe). Previous research has indicated that Leu136Phe does confer resistance to dinitroaniline herbicides. The level of resistance indicated by regression models and IC50 values indicates that there is roughly a >100, 1.5, 5.5, >100-fold resistance to dithiopyr, prodiamine, pendimethalin, and oryzalin, respectively when compared to the susceptible population. These results indicate that the amount needed of dithiopyr, pendimethalin, and oryzalin to control the resistant population was significantly higher than the susceptible population, while the amount needed for prodiamine was only marginally higher. We, therefore, posit that Leu136Phe in alpha-tubulin induces resistance to dithiopyr and the dinitroanilines pendimethalin and oryzalin but may not induce resistance to prodiamine." |
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| Language: | English |
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| References: | 0 |
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| See Also: | Related abstract appears in Western Society of Weed Science Annual Meeting 2020, Vol. 73 March 2020, p. 90-91, R=319702. R=319702 |
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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):
Russell, E. C. 2021. Identification of goosegrass (Eleusine indica) resistant to dithiopyr and dinitroaniline herbicides. Abstr. Annu. Meet. Weed Sci. Soc. Am. p. 177. |
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| Web URL(s):
https://wssa.net/wp-content/uploads/WSSA-Virtual-Annual-Meeting-all-abstracts-updated-4-12-2021ab_FINAL.pdf#page=177
Last checked: 11/01/2022
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: b2180085 |
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