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| Web URL(s): | https://wssa.net/wp-content/uploads/ilovepdf_merged-26.pdf#page=106
Last checked: 04/18/2024
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): | Joseph, Mikerly M.;
Gawron, Katarzyna A.;
Petelewicz, Pawel |
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| Author Affiliation: | Joseph: Auburn University, Auburn, AL; Gawron and Petelewicz: University of Florida, Gainesville, FL |
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| Title: | Sequential applications of minimized topramezone rates for the control of mature goosegrass populations |
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| Section: | Posters turf and ornamentals
Other records with the "Posters turf and ornamentals" Section
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| Meeting Info.: | San Antonio, Texas: January 22 - 25, 2024 |
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| Source: | Weed Science Society of America - Southern Weed Science Society Joint Meeting. 2024, p. 102-103. |
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| Publishing Information: | [United States]: Weed Science Society of America |
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| # of Pages: | 2 |
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| Abstract/Contents: | "Goosegrass [Eleusine indica (L.) Gaertn.] is one of the most troublesome warm-season weeds in the southern United States, commonly infesting various turfgrasses. Currently, the postemergence options for controlling goosegrass are highly limited and its eradication becomes more difficult when the plant starts tillering and develops seedheads. Among the currently registered options, topramezone has the ability to control mature goosegrass. However, research conducted in Florida suggests that despite seemingly effective control, goosegrass may recover due to surviving roots. Therefore, this study assessed strategies aimed to ensure the persistent removal of mature goosegrass populations. Two greenhouse studies were conducted to evaluate the response of goosegrass at 1-3 tillers and 4-10 tillers to topramezone 1) applied once at rates increasing from 0.002 L ha-1 to 0.036 L ha-1 and 2) at a total rate of 0.018 L ha-1 applied once or equally divided into 2, 4, or 8 biweekly applications. Visual control was assessed on a scale of 0 to 100%. None of the single-applied topramezone rates effectively controlled control goosegrass (<60% control) as shown with the rate response study. All sequential topramezone applications tested in the second study resulted in >90% goosegrass control compared to =70% control achieved with single application at 16 weeks after initial treatment. Moreover, programs in which the total rate of 0.018 L ha-1 was split into >2 (i.e., 4 and 8) applications provided near-complete (>95%) goosegrass control regardless of tillering stage. Results from this research suggest that extended application programs utilizing minimized topramezone rate may provide persistent control of mature goosegrass populations." |
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| Language: | English |
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| References: | 0 |
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| See Also: | Original version appears in ASA, CSSA, SSSA International Annual Meeting, 2023, p. 151013, with variant title, "Extended topramezone application programs for the control of mature goosegrass populations", R=333564. R=333564 |
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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):
Joseph, M. M., K. A. Gawron, and P. Petelewicz. 2024. Sequential applications of minimized topramezone rates for the control of mature goosegrass populations. Abstr. Annu. Meet. Weed Sci. Soc. Am. p. 102-103. |
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| Web URL(s):
https://wssa.net/wp-content/uploads/ilovepdf_merged-26.pdf#page=106
Last checked: 04/18/2024
Requires: PDF Reader
Notes: Item is within a single large file |
| 
MSU catalog number: b2180085 |
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