Full TGIF Record # 302075
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Web URL(s):https://scisoc.confex.com/scisoc/2018am/meetingapp.cgi/Paper/113573
    Last checked: 11/12/2018
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Publication Type:
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Report
Content Type:Abstract or Summary only
Author(s):Mitchell, Nicholas; Hoyle, Jared A.; Bremer, Dale J.; Keeley, Steven J.; Dille, Johanna
Author Affiliation:Mitchell, Hoyle, Bremer, and Keeley: Horticulture and Natural Resources, Kansas State University, Manhattan, KS; Dille: Agronomy, Kansas State University, Manhattan, KS
Title:The effects of post-emergence herbicides and application timings on Windmillgrass (Chloris verticillata) control
Section:C05 turfgrass science
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Plant protection turfgrass ecosystems poster (Includes student competition)
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Meeting Info.:Baltimore, Maryland: November 4-7, 2018
Source:ASA, CSSA and SSSA International Annual Meetings. 2018, p. 113573.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Canadian Society of Agronomy]
# of Pages:1
Keywords:TIC Keywords: Application timing; Chloris truncata; Herbicide efficacy; Herbicide evaluation; Postemergence herbicides; Weed control
Abstract/Contents:"The Effects of Post-Emergence Herbicides and Application Timings on Windmillgrass (Chloris verticillata) Control. Nicholas Mitchell, Jared Hoyle, Dale Bremer, Steve Keeley, and Anita Dille Department of Horticulture & Natural Resources, Kansas State University Windmillgrass (Chloris verticillata Nutt.) is a problematic perennial grassy weed commonly found in the mid-west. Currently Tenacity (mesotrione) and Pylex (topramezone) are the only labeled chemical control options in turfgrass. Research trials were initiated in Junction City and Onaga, KS, to identify additional herbicides and optimal application timing for windmillgrass control. Research trials were arranged in a 3 ^D#x 10 factorial, randomized complete block with 4 replications. Evaluated factors were; 3 applications timings and 10 herbicides. Application timings were Spring (May 2018), Summer (July 2017), Fall (September 2017). Herbicide treatments were Tenacity (mesotrione) at 0.28 kg ai ha-1, Acclaim Extra (fenoxaprop) at 0.19 kg ai ha-1, Pylex (topramezone) at 0.05 kg ai ha-1, Drive XLR8 (quinclorac) at 0.84 kg ai ha-1, Dismiss (sulfentrazone) at 0.28 kg ai ha-1, Revolver (foramsulfuron) at 0.12 kg ai ha-1, Celsius WG (thiencarbzaone + iodosulfuron + dicamba) at 0.038 kg ai ha-1, Katana (flazasulfuron) at 0.05 kg ai ha-1, Monument 75WG (trifloxysulfuron) at 0.027 kg ai ha-1, and a nontreated control. Surfactants were added if recommended by the manufacture. Treatments were applied to 1.5 m Π1.5 m plots containing 65-75% windmillgrass cover using a CO2 pressurized boom sprayer calibrated to deliver 402 L/ha. Data collection consisted of visual % windmillgrass cover (0-100%) and line-intersect analysis (four-inch spacing). Data was transformed relative to initial windmillgrass populations to calculate % control for each individual plot. ANOVA was performed in SAS and means were separated according to Fishers protected LSD at 0.05 significance level. At 8 weeks after application, Pylex resulted in 82 and 80% windmillgrass control for Spring and Summer applications, respectively. Acclaim resulted in 30% windmillgrass control at 8 weeks after Summer application, higher than Tenacity (10%). Fall applications across all herbicides resulted in decreased efficacy. Current research results demonstration additional chemistries provide windmillgrass control or suppression."
Language:English
References:0
Note:This item is an abstract only!
"116"
"Poster Number: 1252"
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Mitchell, N., J. A. Hoyle, D. J. Bremer, S. J. Keeley, and J. Dille. 2018. The effects of post-emergence herbicides and application timings on Windmillgrass (Chloris verticillata) control. Agron. Abr. p. 113573.
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    Last checked: 11/12/2018
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