Full TGIF Record # 331724
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Web URL(s):https://scisoc.confex.com/scisoc/2020am/meetingapp.cgi/Paper/124875
    Last checked: 09/12/2023
Publication Type:
Content Type:Abstract or Summary only
Author(s):Reasor, Eric H.; Aynardi, Brian; Williamson, R. Chris; Marvin, Jeff; Sanson, Dale R.
Author Affiliation:Reasor:PBI-Gordon Corp., Richardson, TX; Aynardi, Williamson, and Marvin: PBI-Gordon Corporation, Shawnee, KS; Sanson: Formulation Development and Compliance Chemistry, PBI Gordon, Kansas City, MO
Title:Pyrimisulfan and dithiopyr combinations for pre-emergent false-green kyllinga (Kyllinga gracillima) and yellow nutsedge (Cyperus esculentus) control
Section:Turfgrass pest management oral (includes student competition)
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C05 turfgrass science
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Meeting Info.:San Antonio, Texas: November 9-13, 2020
Source:ASA, CSSA, SSSA International Annual Meeting. November 2020, p. 124875.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Abstract/Contents:"False-green kyllinga (Kyllinga gracillima; FGK) and yellow nutsedge (Cyperus esculentus; YNS) are troublesome weeds in turfgrasses. Pre-emergent control options for these weeds are limited; therefore, control relies on post-emergent herbicides. Pyrimisulfan is a new active ingredient registered for post-emergent control of FGK and YNS in cool- and warm-season turfgrasses. Dithiopyr is a pre-emergent herbicide that has been used for grassy weed control in cool- and warm-season turfgrasses. Combining pyrimisulfan and dithiopyr has the potential to provide pre-emergent control of FGK and YNS. The objective of this research was to evaluate pyrimisulfan and dithiopyr combinations for FGK and YNS control. Field experiments were conducted during summer 2019 in Blacksburg, VA, and Freehold, NJ, and Knoxville, TN. Four pyrimisulfan+dithiopyr (P+D) combinations (NB39831, NB39832, NB39833, and NB39970) were applied as a sequential application six weeks after application of an industry standard pre-emergent herbicide (dithiopyr, indaziflam, oxadiazon, and prodiamine). Additionally, two applications of NB39833, NB39970, dithiopyr, indaziflam, oxadiazon, and prodiamine were included. Percent FGK and YNS control was evaluated relative to a non-treated check throughout the trial period. On final rating dates, two P+D applications had significantly greater control (89 to 100%) than treatments without an experimental formulation containing pyrimisulfan (0 to 58%). Moreover, two P+D applications initially yielded greater control (95 to 100%) than most P+D treatments applied as a sequential application after industry standard pre-emergent herbicides (0 to 90%). Results from field trials in 2019 indicated pyrimisulfan is the active ingredient responsible for pre-emergent FGK and YNS control."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Reasor, E. H., B. Aynardi, R. C. Williamson, J. Marvin, and D. R. Sanson. 2020. Pyrimisulfan and dithiopyr combinations for pre-emergent false-green kyllinga (Kyllinga gracillima) and yellow nutsedge (Cyperus esculentus) control. Agron. Abr. p. 124875.
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    Last checked: 09/12/2023
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