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| Web URL(s): | https://scisoc.confex.com/scisoc/2023am/meetingapp.cgi/Paper/151013 Last checked: 12/08/2023 |
| Publication Type: | Report |
| Content Type: | Abstract or Summary only |
| Author(s): | Joseph, Mikerly; Gawron, Katarzyna; Petelewicz, Pawel |
| Author Affiliation: | Joseph: Presenting Author and Agronomy, University of Florida, Gainesville, FL; Gawron and Petelewicz: Agronomy, University of Florida, Gainesville, FL |
| Title: | Extended topramezone application programs for the control of mature goosegrass populations |
| Section: | 377 Other records with the "377" Section Turf pest management poster: Diseases, insects, weeds I (includes student competition) Other records with the "Turf pest management poster: Diseases, insects, weeds I (includes student competition)" Section C05 turfgrass science Other records with the "C05 turfgrass science" Section |
| Meeting Info.: | St. Louis, Missouri: October 29-November 1, 2023 |
| Source: | ASA, CSSA, SSSA International Annual Meeting. 2023, p. 151013. |
| Publishing Information: | [Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America] |
| # of Pages: | 1 |
| Abstract/Contents: | "Goosegrass (Eleusine indica (L.) Gaertn.) is one of the most troublesome warm-season weeds in the southern United States, commonly infesting various turfgrass scenarios. Currently, the postemergence options for the control of goosegrass are highly limited, and its eradication becomes more difficult when plant starts tillering and develops seedheads. Among the currently registered options, topramezone has the ability to control mature goosegrass. Moreover, research conducted in Florida suggests that despite seemingly effective control, goosegrass may be recovering 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 total rate of 0.018 L ha-1 applied once or equally divided into 2 or 4 biweekly applications. Experimental design was complete randomized block and studies were replicated twice. Visual control was assessed on a scale of 0 to 100%. In the rate-response study, none of the topramezone rates effectively controlled goosegrass (<60% control at 5 weeks after initial treatment (WAIT)) regardless of its growth stage. However, results from the second study indicated that multiple topramezone applications were more effective than a single application. Two- and four-application programs achieved >60% control at 7 WAIT." |
| Language: | English |
| References: | 0 |
| See Also: | Updated version appears in Weed Science Society of America - Southern Weed Science Society Joint Meeting, 2024, p.102-103, with variant title "Sequential applications of minimized topramezone rates for the control of mature goosegrass populations", R=336035.R=336035 |
| Note: | This item is an abstract only! |
| ASA/CSSA/SSSA Citation (Crop Science-like – may be incomplete): | Joseph, M., K. Gawron, and P. Petelewicz. 2023. Extended topramezone application programs for the control of mature goosegrass populations. Agron. Abr. p. 151013. |
| Fastlink to access this record outside TGIF: | http://tic.msu.edu/tgif/flink/RECNO/333564 |
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| Web URL(s) : | https://scisoc.confex.com/scisoc/2023am/meetingapp.cgi/Paper/151013 Last checked: 12/08/2023 |
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