Full TGIF Record # 228500
Item 1 of 1
Publication Type:
i
Report
Author(s):Vollmer, J. G.; Bingham, S. W.
Author Affiliation:Department of Plant Path., Physiol., and Weed Science, Virginia Tech, Blacksburg, VA
Title:Control of common milkweed along highway rights-of-way
Translated Section:Control of weeds on utility, railroad, and highway rights-of-way and on industrial sites
Meeting Info.:Nashville, Tennessee: January 16-18, 1989
Source:Proceedings: Southern Weed Science Society. Vol. 42, 1989, p. 253.
Publishing Information:Champaign, Illinois: Southern Weed Science Society
# of Pages:1
Abstract/Contents:"Field experiments were established in Lexington and Staunton, Virginia in 1987 and 1988, respectively, along highway rights-of-way. The objectives of this research were (i) to evaluate the efficacy of several broadleaf herbicides applied postemergence for common milkweed (Asclepias syriaca L.) control and (ii) to evaluate the effect of these herbicides on tall fescue (Festuca arundinacea (L.) Schreb) and red fescue (Festuca rubra L.). Treatments were applied on May 31, 1987, and June 1, 1988, with CO2 backpack sprayer in 280 L water HA-1 delivered at 210 kPa utilizing 8003 flat fan nozzles. A randomized complete block design with three replications was used. All plots measured 2.2 m by 6.1 m. Common milkweed was treated in the early bud stage of development with an average height of 63 cm. Observations were made 4, 8, and 16 weeks after treatment. For the 1987 study a rating was taken one year after treatment. Milkweed control was calculated from actual plant counts and visual injury ratings. In 1987, at 16 weeks after application, all treatments afforded good control of common milkweed. However by the following spring, only 2,4-D ester plus dicamba at 2.24 plus 1.1 kg ha-1, clopyralid at 0.38 kg ha-1, triclopyr amine at 1.1 and 1.68 kg ha-1 and triclopyr ester at 0.56, 1.1 and 1.68 kg ha-1 had maintained adequate control. In 1988, 2,4-D plus triclopyr at 1.68 plus 0.56 kg ha-1, chlorimuron at 0.009, 0.018, and 0.035 kg ha-1 and triclopyr amine and ester at 0.056, 1.1, and 1.68 kg ha-1 afforded good control of milkweed at 16 weeks. Clopyralid did not adequately control milkweed. All treatments were safe to both turf types."
Language:English
References:0
Note:"Finding a common ground"
This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Vollmer, J. G., and S. W. Bingham. 1989. Control of common milkweed along highway rights-of-way. South. Weed Sci. Soc. Proc. 42:p. 253.
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