Full TGIF Record # 30575
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Publication Type:
i
Report
Content Type:Abstract or Summary only
Author(s):Kelly, S. T.; Coats, G. E.
Author Affiliation:Mississippi State University
Title:Evaluation of herbicide combinations for postemergence control of Virginia buttonweed (Diodia virginiana L.)
Meeting Info.:Charlotte, NC: January 18-20, 1993
Source:Southern Weed Science Society Proceedings. Vol. 46, 1993, p. 106.
Publishing Information:Champaign, IL: Southern Weed Science Society.
# of Pages:1
Keywords:TIC Keywords: Diodia virginiana; Postemergence herbicides; Herbicide combinations; Weed control
Abstract/Contents:"Experiments were conducted from 1990 to 1992 to evaluate three-way combinations of 2,4-D with mecoprop, MCPA, dichlorprop, or dicamba. Mixtures included in these experiments were as follows: 2,4-D + mecoprop + dicamba (1.0 + 0.55 + 0.10, 0.90 + 0.48 + 0.08, and 0.36 + 0.66 + 0.07 lb ae/A); 2,4-D + mecoprop + dichlorprop (0.66 + 0.66 + 0.66 lb ae/A); 2,4-D + MCPA + dichlorprop (0.51 + 0.51 + 0.74 lb ae/A); and 2,4-D + dichlorprop + dicamba (0.74 + 0.74 + 0.18, and 0.70 + 0.35 + 0.06 lb/A). A three-way mixture of mecoprop + MCPA + dichlorprop (0.51 + 0.51 + 0.51 lb/A) was also evaluated. Peak control of Virginia buttonweed was observed 5 wk after treatment in all years. At this evaluation date, the combination containing no 2,4-D provided 28% less control compared to the combination of 2,4-D + mecoprop + dicamba (1.0 + 0.55 + 0.10 lb/A). All combinations with a 2,4-D to mecoprop ratio of 2:1 provided equivalent control. When the ratio of 2,4-D to mecoprop was reversed to a 1:2 ratio, control declined significantly. A greenhouse experiment was initiated to evaluate 2,4-D alone or in combination of 2,4-D + mecoprop + dicamba (1.0 + 0.55 + 0.10 lb ae/A). Rates of 2,4-D ranged from 0.25 to 1.0 lb ae/A while metsulfuron rates ranged from 0.25 to 1.0 oz pr/A. At 48 d after treatment, > or = 0.75 oz/A metsulfuron provided greater control than the 2,4-D + mecoprop + dicamba (1.0 + 0.05 + 0.10 lb ae/A) standard used for comparison. All combinations of 2,4-D + metsulfuron provided greater control than 2,4-D or < or = 0.75 oz/A metsulfuron alone. Metsulfuron at > or = 0.50 oz/A provided fresh weight reduction equivalent to all combinations."
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Kelly, S. T., and G. E. Coats. 1993. Evaluation of herbicide combinations for postemergence control of Virginia buttonweed (Diodia virginiana L.). South. Weed Sci. Soc. Proc. 46:p. 106.
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MSU catalog number: SB 611 .S6 v.46
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