Full TGIF Record # 228637
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Publication Type:
Author(s):Brooks, Louanne S.; Weidenfeller, Ted A.
Author Affiliation:Brooks: DowElanco, Indianapolis, IN; Weidenfeller: Consultant, Plymouth, MN
Title:Preliminary results of six herbicide treatments for leafy spurge control along roadsides
Section:Industrial, forestry, turf, and aquatic
Other records with the "Industrial, forestry, turf, and aquatic" Section
Meeting Info.:Louisville, Kentucky: December 9-11, 1997
Source:Proceedings: North Central Weed Science Society. Vol. 52, 1997, p. 107-108.
# of Pages:2
Publishing Information:[Champaign, Illinois]: [North Central Weed Science Society]
Abstract/Contents:"Traditional control of leafy spurge along roadside in the upper Mid-west consists of picloram + 2,4-D combinations (0.25 to 0.5 lb/A + 1 to 2 lb/A), applied every other year. This treatment is generally effective, but can also injure desirable woody vegetation within the treatment area. In an effort to identify alternative herbicide treatments less injurious to woody vegetation, three replications (random block design) of six herbicide treatments were applied to a uniformly dense stand of leafy spurge at two timings (May and September), with and without methylated seed oil, to evaluate leafy spurge control and impact on desirable grasses. The treatments, applied at a rate of 30 gpa, included picloram + 2,4-D (0.5 + 2 lb/A), picloram + 2,4-D + methylated seed oil (0.5 + 2 lb/A + 0.25 gpa), picloram + 2,4-D + imazethapyr + methylated seed (0.125 + 0.5 + 0.09 lb/Ac + 0.25 gpa), imazethapyr + methylated seed oil (0.18 lb/A + 0.25 gpa) picloram + 2,4-D + clopyralid + methylated seed oil (0.063 + 0.25 + 0.5 + 0.25 gpa) and an unrreated control. The May treatments were evaluated 97 DAT, when the September treatments were made. At that time, only the two high rates of picloram + 2,4-D and the picloram + 2,4-D + imazethapyr offered acceptable control (90, 91 and 88% control respectively) without undue injury to brome and bluegrass. All other treatments were unacceptable due to poor control of leafy spurge and/or injury to desirable grasses. Methylated seed oil did not enhance performance of the high rates of picloram + 2,4-D, but did enhance performance at the lower rate where combined with clopyralid, however not enough to offer acceptable control. Evaluations will be made in the coming year of both the May and September treatments."
See Also:Updated version appears in Proceedings: North Central Weed Science Society, vol. 53 1998, p. 99, with variant title "Results of six herbicide treatments for leafy spurge control along roadsides", R=230152. R=230152
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Brooks, L. S., and T. A. Weidenfeller. 1997. Preliminary results of six herbicide treatments for leafy spurge control along roadsides. Proc. North Cent. Weed Sci. Soc. 52:p. 107-108.
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