Full TGIF Record # 248980
Item 1 of 1
Publication Type:
Author(s):Fischbach, John; Furrer, John; Shearman, Robert
Author Affiliation:Fischbach: Graduate Student; Furrer: Professor, Dept. of Agronomy; Shearman: Associate Professor, Dept. of Horticulture, University of Nebraska, Lincoln, NE
Title:The effect of rates and dates of bentazon applications made to new seedings of turfgrass for the control of yellow nutsedge
Section:Turf, ornamentals and aquatics
Other records with the "Turf, ornamentals and aquatics" Section
Meeting Info.:Omaha, Nebraska: December 9-11, 1980
Source:Proceedings: North Central Weed Control Conference. Vol. 35, 1980, p. 119.
# of Pages:1
Publishing Information:[Urbana, Illinois: Department of Agronomy, University of Illinois]
Abstract/Contents:"Yellow nutsedge is a troublesome weed in turfgrass. Its perennial nature, extensive rhizome, and tuber formation allows it to spread more rapidly than what mechanical weed control can prevent. Bentazon is labeled for use on yellow nutsedge in turfgrass areas and gives effective control without injurying [injuring] the turf. The effective time of control and the effect on newly-seeded turfgrass has not been fully determined. During the summer of 1980, a field experiment was conducted at the University of Nebraska to study the effects of four rates of bentazon (0, 1, 2 and 4 lb/A) applied on a newly seeded Kentucky bluegrass (Touchdown) turf at monthly intervals using single and follow-up treatments for comparison. The first month treatment was applied five weeks after seeding turf grasses. The tubers of yellow nutsedge were planted prior to planting the turf grass. Preliminary results of this experiment showed that 1, 2 and 4 lb rates were injurious to newly seeded turf grass. Most injury occurred using the 4 lb rate but decreased (linearly) substantially to the 1 lb rate. The Kentucky bluegrass did out grow the injury in a matter of weeks. For the single treatment, the best rate was the 4 lb rate, but it also injured the greatest. The percent control increased greatly from 1 lb to 4 lb and the use of a follow-up treatment always gave a better final control of yellow nutsedge within the plots. The best time of the year to control yellow nutsedge with minimal injury to a newly (spring) seeded turf would be during the months of July and August which coincides with the peak growth period of yellow nutsedge. During the summer of 1980, unusually high air temperature during the month of July may have decreased the control of yellow nutsedge. Applications during the month of September gave the poorest control."
Note:This item is an abstract only!
"Published as Abstract No., Journal Series, Nebraska Agricultural Experiment Station."
Reprint appears in 19th Annual Nebraska Turfgrass Conference & Trade Show, 1981, p. 216
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Fischbach, J., J. Furrer, and R. Shearman. 1980. The effect of rates and dates of bentazon applications made to new seedings of turfgrass for the control of yellow nutsedge. Res. Rep. North Cent. Weed Control Conf. 35:p. 119.
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