Full TGIF Record # 317109
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Web URL(s):https://scisoc.confex.com/scisoc/2021am/meetingapp.cgi/Paper/138513
    Last checked: 03/30/2022
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Petelewicz, Pawel; Orlinski, Pawel; Baird, James
Author Affiliation:Petelewicz: Botany & Plant Sciences, University of Florida, Gainesville, FL; Orlinski and Baird: Department of Botany & Plant Sciences, University of California-Riverside, Riverside, CA
Title:Improved postemergence English daisy control in mixed cool-season turfgrass stands with mesotrione and topramezone combined with chosen auxin mimicking herbicides
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. 138513.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Abstract/Contents:"English lawn daisy (Bellis perennis L.) has become one of the most persistent and difficult-to-eradicate broadleaf weeds in cool-season turfgrass in Northern California. It can tolerate or resist many of the presently registered herbicides. Consistent and reliable options are currently limited to penoxsulam, which can result in phytotoxicity, especially on perennial ryegrass (Lolium perenne L.). Additionally, the excessive use of single mode of action may lead to the development of resistant populations. This study was conducted to evaluate series of 3 sequential, monthly applications of penoxsulam at 0.58 L ha-1, mesotrione at 0.37 L ha-1 and topramezone at 0.07 L ha-1 in combination with dicamba at 0.73 L ha-1, fluroxypyr at 1.68 L ha-1, quinclorac at 2.34 L ha-1, or triclopyr at 1.17 L ha-1, for the improved postemergence control of English daisy in a mixed stand of perennial ryegrass and annual bluegrass (Poa annua L.), maintained as a golf course fairway in Napa, CA. Crop safety and longevity of the aforementioned treatments were also investigated. Treatments were initiated on September 30, 2020. Results showed that except for triclopyr alone, all employed treatments provided target weed control exceeding 90%, in most cases achieving full eradication with practically no re-infestation until June 2021. Most rapid effect - almost 100% control at 4 weeks after initial treatment (WAIT) - was provided with all penoxsulam-containing treatments, as well as all topramezone tank-mixtures (except for one with triclopyr). In all cases, the addition of auxin mimicking herbicides to a tank-mix accelerated and improved weed control, while fluroxypyr was the most efficacious addition of all. While penoxsulam caused unacceptable phytotoxicity to the desired sward persisting from 4 to 16 WAIT, injury with topramezone did not surpass the acceptable threshold, except for when tank-mixed with fluroxypyr (from 2 WAIT to 6 WAIT)."
Note:"Poster # 1241"
Section "159"
This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Petelewicz, P., P. Orlinski, and J. Baird. 2021. Improved postemergence English daisy control in mixed cool-season turfgrass stands with mesotrione and topramezone combined with chosen auxin mimicking herbicides. Agron. Abr. p. 138513.
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