Full TGIF Record # 225414
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Web URL(s):http://www.swss.ws/wp-content/uploads/docs/2006 Proceedings-SWSS.pdf#page=188
    Last checked: 07/18/2013
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Publication Type:
i
Report
Author(s):Mack, D.; Strahan, R. E.; Lee, D. J.
Author Affiliation:LSU AgCenter, Baton Rouge, LA
Title:Certainty rate, timing, and tankmixtures for Virginia buttonweed (Diodia virginiana) control
Section:Weed management in turf grass
Other records with the "Weed management in turf grass" Section
Meeting Info.:San Antonio, Texas: January 23-25, 2006
Source:Proceedings: Southern Weed Science Society 59th Annual Meeting. Vol. 59, 2006, p. 115.
Publishing Information:Champaign, Illinois: Southern Weed Science Society
# of Pages:1
Keywords:TIC Keywords: Application rates; Application timing; Diodia virginiana; Sulfosulfuron; Tank mix; Weed control
Trade Names:Certainty
Abstract/Contents:"Virginia buttonweed (Diodia virginiana L.) is a perennial herbaceous dicot weed in turfgrass systems in the Southeastern United States. Virginia buttonweed has become an increasingly serious weed due to its vegetative reproduction traits and a lack effective chemical control measures. It is a prolific seed producer and can withstand most herbicide treatments. Research was initiated to evaluate the efficacy of Certainty (sulfosulfuron), broadleaf herbicide + Certainty tank-mixes and Certainty/broadleaf herbicide programs including sulfosulfuron for Virginia buttonweed control in Louisiana turfgrass. Field experiments were conducted at the Burden Research Center in Baton Rouge, LA in 2005 to evaluate Virginia buttonweed control with Certainty, Certainty+ broadleaf herbicide tank-mixes, and Certainty/Escalade (2,4-D + fluroxypyr + dicamba) programs. Herbicides were applied with a CO2 pressurized backpack sprayer equipped with 11003 XR flat fan nozzles that delivered 26 GPA at 23 psi. Certainty was evaluated alone or tank-mixed with Escalade, Trimec Plus (2,4-D + Dicamba + MCPA +MSMA), Spotlight (fluroxypyr), and Confront (triclopyr + clorpyralid) and as part of a management program with Escalade. All applications with Certainty included 0.25% non-ionic surfactant. Experiment was conducted on marginal quality irrigated Tifway 419 with a heavy natural infestation of Virginia buttonweed. Plots were mowed as needed to maintain 1.5 inch height. Plot size was 4 ft x 7 ft. Visual ratings of percent buttonweed control and turf injury were conducted weekly. The experiment was conducted as a randomized complete block with 4 replications. Data were subjected to analysis of variance (P=0.05) and means were separated using Fishers LSD Two applications of Certainty applied 4 weeks apart provided no Virginia buttonweed control 65 DAI. Percent control was similar for sequential applications of Escalade, Spotlight, and Confront applied alone or tank-mixed with Certainty (65 to 88%). However, sequential applications of Trimec Plus applied alone or tank-mixed with Certainty provided less than 35% control at the conclusion of the trial. In a program approach, Certainty followed by Escalade followed by Certainty followed by Escalade provided excellent control (95%) which was similar to Escalade followed by Certainty followed by Escalade followed by Certainty (91%). The Certainty/Escalade programs were successful because the later Escalade or Certainty applications provided good control of seedling buttonweed that emerged in the plots after the perennial plants were injured or destroyed by the initial applications. Spotlight applied sequentially alone or tank-mixed with Certainty gave similar control (81 and 88%) as the two Certainty/Escalade programs. Seedling buttonweed emerged through the destroyed perennial plants and caused a late season reduction in control in plots that received only two herbicide applications in the study. The Certainty/Escalade programs were successful because the later Escalade or Certainty applications provided good control of seedling buttonweed that emerged in the plots."
Language:English
References:0
Note:"Vision for the future"
This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Mack, D., R. E. Strahan, and D. J. Lee. 2006. Certainty rate, timing, and tankmixtures for Virginia buttonweed (Diodia virginiana) control. South. Weed Sci. Soc. Proc. 59:p. 115.
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http://www.swss.ws/wp-content/uploads/docs/2006 Proceedings-SWSS.pdf#page=188
    Last checked: 07/18/2013
    Requires: PDF Reader
    Notes: Item is within a single large file
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