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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2011 Proceedings-SWSS.pdf#page=398
Last checked: 08/06/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Flessner, Michael L.;
McElroy, J. Scott |
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| Author Affiliation: | Auburn University, Auburn, AL |
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| Title: | Effects of quinclorac and sulfentrazone on crabgrass and cock's comb kyllinga control |
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| Section: | Posters: Weed management in turf
Other records with the "Posters: Weed management in turf" Section
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| Meeting Info.: | San Juan, Puerto Rico: January 24-26, 2011 |
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| Source: | 2011 Proceedings, Southern Weed Science Society. Vol. 64, 2011, p. 290. |
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| Publishing Information: | Champaign, Illinois: Southern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Digitaria; Herbicide evaluation; Kyllinga squamulata; Postemergence weed control; Quinclorac; Quinclorac + Sulfentrazone; Sulfentrazone; Sulfentrazone + quinclorac + 2,4-D + dicamba
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| Trade Names: | Solitaire 75DF; Drive XLR8; Q4; Dismiss 4F |
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| Abstract/Contents: | "Crabgrass (Digitaria spp.) and cock's comb (Kyllinga squamulata) are both summer annual weeds common in warm-season turfgrasses in the Southeastern United States. Both weeds can escape control from preemergence herbicides. Therefore, turfgrass managers utilize post-emergence herbicides such as quinclorac and sulfentrazone for control. Research was conducted to evaluate quinclorac and sulfentrazone for postemergence control of crabgrass and cock's comb kyllinga. Separate experiments were conducted for crabgrass and cock's comb kyllinga control, respectively. Research was conducted at the Auburn University Turfgrass Research Unit in Auburn, AL for cock's comb kyllinga control and at the E.V. Smith Research Center in Tallassee, AL for crabgrass control. A randomized complete block design with three replications and plot sizes of 4.7 m2 were utilized for both experiments. Treatments were applied in a 280 L/ha spray volume. Both experiments included the treatments Solitare 75DF (quinclorac + sulfentrazone; FMC, Philadelphia, PA) at 0.75 and 1.0 lb ai/a, Drive XLR8 (quinclorac; BASF, Research Triangle Park, NC) at 0.75 lb ai/a, and Q4 (quinclorac + sulfentrazone + 2,4- D + dicamba; PBI Gordon, Kansas City, MO) at 8 pt/a, in addition to a nontreated check. Treatments for the crabgrass experiment were applied at 1 to 4 leaf, 1 to 2 tiller, 3 to 5 tiller, and >6 tiller stages of crabgrass. Cock's comb kyllinga control treatments also included Dismiss 4F (sulfentrazone; FMC, Philadelphia, PA) at 0.375 lb ai/a and were applied to mature weeds. Visual percent control data were collected where 0 = no plant injury and 100 = complete plant death. Data were subjected to ANOVA and means separated using LSD with an alpha level of 0.05. Crabgrass was best controlled when treatments were applied at the 1 to 4 leaf and 1 to 2 tiller stages. Solitare at 1.0 lb ai/a controlled 1 to 4 leaf crabgrass better than at 0.75 lb ai/a [75 compared to 45%; 60 days after application (DAA)]. Both rates of Solitare resulted in similar control when applied at other crabgrass stages. Q4 provided acceptable crabgrass control (63%) when applied at the leaf stage, but control was not acceptable (less than 20%) from other application timings. Drive XLR8 provided excellent crabgrass control at the leaf (70%) and 1-2 tiller (67%) application timings. Q4 had significantly less cock's comb kyllinga control 23%, 56 DAA) compared to Dismiss (60%) and Solitare (55%), due to a much lower rate of sulfentrazone included in the product. The combination of sulfentrazone + quinclorac does not provide any additional crabgrass control compared to quinclorac alone or cock's comb kyllinga control compared to sulfentrazone alone. However, the combination product (Solitare) does provide a broader spectrum of weed control compared to the stand alone products Dismiss and Drive XLR8." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Flessner, M. L., and J. S. McElroy. 2011. Effects of quinclorac and sulfentrazone on crabgrass and cock's comb kyllinga control. South. Weed Sci. Soc. Proc. 64:p. 290. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2011 Proceedings-SWSS.pdf#page=398
Last checked: 08/06/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: b2207931 |
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