Full TGIF Record # 309579
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Web URL(s):https://scisoc.confex.com/scisoc/2019am/meetingapp.cgi/Paper/122891
    Last checked: 12/04/2019
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Peppers, John; McElroy, J. Scott; Brown, Austin
Author Affiliation:Peppers: Crop, Soil and Environmental Science, Auburn University, Horton, AL; McElroy and Brown: Auburn University, Auburn University, AL
Title:Effects of pinoxaden application timing on large crabgrass (Digitaria sanguinalis) in bermudagrass (Cynodon dactylon) turf
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.:San Antonio, Texas: November 10-13, 2019
Source:ASA, CSSA and SSSA International Annual Meetings. 2019, p. 122891.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Keywords:TIC Keywords: Application timing; Biomass; Crabgrass control; Cynodon dactylon; Digitaria ischaemum; Digitaria sanguinalis; Herbicide evaluation; Herbicide injury; Percent weed cover; Pinoxaden
Abstract/Contents:"Pinoxaden is an ACCase inhibiting herbicide newly released for use in turf. It is labelled for crabgrass (Digitaria spp.) control in bermudagrass (Cynodon dactylon), zoysiagrass (Zoysia spp.) and St. Augustinegrass (Stenotaphrum secundatum). Research was conducted to evaluate the effects of pinoxaden application timing on crabgrass control. In greenhouse studies, a rate response screen was conducted using ten rates of pinoxaden on large crabgrass (Digitaria sanguinalis) six and ten weeks after germination (WAG). Visual injury and biomass reduction data were taken. I50 and I90 values were determined for both visual injury and biomass reduction for each application timing. Large crabgrass 6 WAG was more susceptible to pinoxaden applications than large crabgrass 10 WAG. In field studies, single and sequential (14 days after initial) applications of pinoxaden (1.56 kg ai ha-1) were made to smooth crabgrass (Digitaria ischaemum) at either an early (1-3 tiller) or late (4-7 tiller) growth stage. Percent coverage of smooth crabgrass was recorded throughout the trial. In 2018, early season applications were more effective at controlling smooth crabgrass than late season applications. Sequential applications to 4-7 tiller crabgrass were more effective in 2019 than in 2018. Single applications to 4-7 tiller smooth crabgrass provided less control. Both single and sequential pinoxaden applications provided more season long control when applied to 1-3 tiller smooth crabgrass than applications made to 4-7 tiller smooth crabgrass."
Note:This item is an abstract only!
"Poster #1643"
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Peppers, J., J. S. McElroy, and A. Brown. 2019. Effects of pinoxaden application timing on large crabgrass (Digitaria sanguinalis) in bermudagrass (Cynodon dactylon) turf. Agron. Abr. p. 122891.
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    Last checked: 12/04/2019
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