Full TGIF Record # 317108
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Web URL(s):https://scisoc.confex.com/scisoc/2021am/meetingapp.cgi/Paper/138838
    Last checked: 03/30/2022
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Petelewicz, Pawel; McLoughlin, Patrick; Williams, Karen; Schiavon, Marco
Author Affiliation:Petelewicz: Botany & Plant Sciences, University of Florida, Gainesville, FL; McLoughlin: University of Florida, Davie, FL; Williams and Schiavon: Fort Lauderdale Research and Education Center, University of Florida, Davie, FL
Title:Combined impact of aerification, various herbicide chemistries, and post-herbicide irrigation on goosegrass control in bermudagrass putting greens
Section:C05 turfgrass science
Other records with the "C05 turfgrass science" Section

Turfgrass pest management poster: Diseases, insects, weeds (includes student competition)
Other records with the "Turfgrass pest management poster: Diseases, insects, weeds (includes student competition)" Section
Meeting Info.:Salt Lake City, Utah: November 7-10, 2021
Source:ASA, CSSA and SSSA International Annual Meetings. 2021, p. 138838.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Abstract/Contents:"Indian goosegrass [Eleusine indica (L.) Gaertn.] is a difficult-to-control annual grassy weed the eradication of which gets more challenging when plant become mature. It often occurs in compacted soils or heavily trafficked areas. Currently, only foramsulfuron is registered for postemergence control of goosegrass in bermudagrass (Cynodon Rich.) putting greens in Florida. Identification of practices enhancing its efficacy, or its safe alternatives is crucial. This study was conducted to evaluate the impact of aerification followed by herbicides applications (foramsulfuron at 1.27 L ha-1, simazine at 1.10 L ha-1, metribuzin at 0.28 kg ha-1, mesotrione at 0.37 L ha-1, topramezone at 0.02 L ha-1), to control the mature goosegrass populations in 'TifEagle' bermudagrass maintained as a golf course putting green in Davie, FL. Aerification was performed on June 4, 2021 and herbicide application on June 11, 2021. The impact of immediate post-herbicide irrigation on crop safety was also investigated. No significant impact of aerification on either goosegrass control or turfgrass injury with herbicides was observed. Regardless of post-herbicide irrigation, the best weed control was achieved with metribuzin + topramezone and simazine + mesotrione tank mixes. However, significant goosegrass recovery across the green was observed at 4 weeks after each treatment, suggesting that to achieve successful control, second application needs to be performed at time interval shorter than 4 weeks. Except for foramsulfuron, all herbicides resulted in unacceptable phytotoxicity to turf with peaks at 1 week after each application. The highest injury level was observed with both metribuzin + topramezone and simazine + mesotrione tank mixes. Irrigation treatment reduced all herbicides phytotoxicity to bermudagrass throughout the study, but except for mesotrione alone, it was insufficient to keei injury at an acceptable level. At the same time irrigation treatment decreased herbicides' efficacy against goosegrass."
Note:"Poster # 1240"
Section "159"
This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Petelewicz, P., P. McLoughlin, K. Williams, and M. Schiavon. 2021. Combined impact of aerification, various herbicide chemistries, and post-herbicide irrigation on goosegrass control in bermudagrass putting greens. Agron. Abr. p. 138838.
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