Full TGIF Record # 75934
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Publication Type:
i
Report
Content Type:Abstract or Summary only
Author(s):Fick, Walter H.; Carlisle, Jonathan D.; Geyer, Wayne A.; Barbur, John
Author Affiliation:Fick: Associate Professor, Department of Agronomy; Carlisle: Research Assistant; and Geyer: Professor, Department of Horticulture, Forestry and Recreation Resources, Kansas State University, Manhattan, KS; Barbur: Management Agronomist, Natural Resources Division, Fort Riley, KS
Title:Postemergence herbicides for gravel parking areas
Section:Industrial, forestry, and turf, and aquatics
Other records with the "Industrial, forestry, and turf, and aquatics" Section
Meeting Info.:Columbus, OH: December 14-16, 1999
Source:Proceedings of the North Central Weed Science Society. Vol. 55, December 2000, p. 113.
# of Pages:1
Publishing Information:Champaign, IL: North Central Weed Science Society
Keywords:TIC Keywords: Parking lots; Gravel; Postemergence herbicides; Bromacil; Diuron; Sulfometuron; Imazapyr; Convolvulus arvensis; Application rates; 2,4-D
Abstract/Contents:"The army installation at Fort Riley, Kansas has been mandated by the U.S. Department of Defense to reduce pesticide use in half by the year 2000. One major use of herbicides at Fort Riley is for maintenance of weed free gravel parking areas. Historically, high rates of bromacil and diuron have been used. Previous research has indicated that sulfometuron provided control with the least amount of active ingredient. Imazapyr enhanced the control of tumble windmillgrass and field bindweed but did not maintain bareground seasonlong. In 2000 an experiment was conducted on an old parking lot at Fort Riley to compare the efficacy of six herbicide treatments to bromacil applied at 16 lb/A for maintenance of bareground. Vegetation was about 3 to 6 inches tall when treated and consisted primarily of daisy fleabane, tumble windmillgrass, field bindweed, curlycup gumweed, and yellow sweetclover. Bromacil at 16 lb/A, sulfometuron at 2.25 and 4.5 oz/A, sulfometuron + imazapyr at 2.25 oz + 0.5 lb/A and 2.25 oz + 0.25 lb/A, and sulfometuron + glyphosate + 2, 4-D at 2.25 oz + 1 lb/A and 2.25 oz + 0.5 lb + 0.5lb/A were applied on May 2 in 42 gpa spray volumes using a CO2-powered four-nozzle boom sprayer equipped with 8006 flat fan nozzles. All treatments contained a 0.5% non-ionic surfactant. Environmental conditions at the time of spraying were 77 ° F air temperature, 55% relative humidity, and 3 to 6 mph wind speed. Percent bareground was visually evaluated 1, 2, 3, and 4 MAT (months after treatment). Data were analyzed as a split plot with treatments as the whole plot and evaluation date as the sub-plot. All herbicides increased bareground compared to no treatment. Weed control with sulfometuron, bromacil, and the low rate of sulfometuron + glyphosate + 2,4-D declined over time. Sulfometuron + imazapyr and the high rate of sulfometuron + glyphosate + 2,4-D were the better treatments providing greater than 80% bareground throughout the season. Tumble windmillgrass and field bindweed were not effectively controlled by sulfometuron or bromacil used alone. Sulfometuron + imazapyr at 2.25 oz + 0.25 lb/A was the best treatment based on the least amount of active ingredient applied and 96% bareground 4 MAT."
Language:English
References:0
Note:This item is an abstract only!
See Also:Other items relating to: 2, 4 - D in Turf
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Fick, W. H., J. D. Carlisle, W. A. Geyer, and J. Barbur. 2000. Postemergence herbicides for gravel parking areas. Proc. North Cent. Weed Sci. Soc. 55:p. 113.
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