Full TGIF Record # 309574
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Web URL(s):https://scisoc.confex.com/scisoc/2019am/meetingapp.cgi/Paper/121372
    Last checked: 12/04/2019
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Publication Type:
Content Type:Abstract or Summary only
Author(s):McNally, Brandon C.; Elmore, Matthew T.; Tuck, Daniel P.
Author Affiliation:Department of Plant Biology, Rutgers University, New Brunswick, NJ
Title:Late winter and early spring pre-emergence programs for smooth crabgrass control
Section:C05 turfgrass science
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Turfgrass pest management poster: Diseases, insects, weeds (includes student competition)
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Meeting Info.:San Antonio, Texas: November 10-13, 2019
Source:ASA, CSSA and SSSA International Annual Meetings. 2019, p. 121372.
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: Crabgrass control; Digitaria ischaemum; Dithiopyr; Herbicide efficacy; Herbicide evaluation; Herbicide program; Lolium perenne; Pendimethalin; Preemergence herbicides; Prodiamine; Spring weed control
Abstract/Contents:"Pre-emergence herbicides are often used to control smooth crabgrass (Digitaria ischaemum). Late autumn or winter pre-emergence herbicide applications can provide effective smooth crabgrass control across much of the northern U.S. The objective of this research was to compare the efficacy of pre-emergence herbicide programs initiated in late winter and just prior to crabgrass emergence in New Jersey. Four replicate field research experiments were conducted in 2017 and 2018 at Rutgers University in North Brunswick and Freehold, NJ on perennial ryegrass (Lolium perenne) with a history of smooth crabgrass. Treatments were arranged in a complete factorial to evaluate three herbicides (dithiopyr, pendimethalin, and prodiamine) in four single or split application programs. Single application programs were initiated in late February and mid-April. Split application programs were initiated on the same dates in late February or mid-April and followed by a second application 6 weeks after the mid-April application. The single application rates of dithiopyr, pendimethalin, and prodiamine were 0.56 kg ha-1, 3.34 kg ha-1, and 1.12 kg ha-1, respectively. Crabgrass control was evaluated visually on a 0 (no control) to 100 (complete control) percent scale relative to the non-treated control in mid-August. Data from each location are presented separately and combined across years. In North Brunswick, a single herbicide application in February provided less smooth crabgrass control than all other programs (83%), while a split application initiated in April provided more control (97%) than all other programs. At the Freehold location, dithiopyr, pendimethalin, and prodiamine efficacy varied across application programs. Split application programs controlled smooth crabgrass similarly, regardless of herbicide (84 to 95%). Single applications of prodiamine provided similar crabgrass control at both timings (78%), while pendimethalin and dithiopyr applied in April provided 43 and 60% control, respectively, compared to <30% for single February applications."
Note:This item is an abstract only!
"Poster #1638"
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
McNally, B. C., M. T. Elmore, and D. P. Tuck. 2019. Late winter and early spring pre-emergence programs for smooth crabgrass control. Agron. Abr. p. 121372.
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