Web URL(s): https://extension.arizona.edu/sites/extension.arizona.edu/files/pubs/14462f.pdf Publication Type:
i
Report Author(s): Umeda, K. ;
Towers, G. Title: Timing of sequential applications for nutsedge control in turfgrass Section: Turf: Weed controlOther records with the "Turf: Weed control" Section Source: 2007-2008 Turfgrass, Landscape and Urban IPM Research Summary [Arizona]. January 2008, p. 30-34.# of Pages: 5 Publishing Information: Tucson, AZ: University of Arizona College of Agriculture & Life Sciences Keywords: TIC Keywords: Cyperus rotundus ; Acetolactate synthase ; Herbicide application ; Halosulfuron ; Flazasulfuron ; Trifloxysulfuron ; Sulfosulfuron ; Imazaquin Abstract/Contents: "Sequential applications of all of the ALS-inhibiting herbicides offered acceptable to excellent levels of nutsedge control in turf. Single applications generally provided nutsedge control for 2 to 6 weeks. Single applications of halosulfuron and flazasulfuron offered effective control for 2 weeks and less than 4 weeks. Effective nutsedge control by trifloxysulfuron and sulfosulfuron was observed at 31 days after treatment (DAT) and began to decline at 42 DAT. Sulfosulfuron at 0.094 lb a.i./A applied sequentially at either 4 or 6 weeks gave near complete at the end of the season at the end of September. A second application of trifloxysulfuron at 0.026 lb a.i./A at 4 or 6 weeks after a first application in mid-July resulted in controlling nutsedge better than 85% at the end of September. Flazasulfuron at 0.047 lb a.i./A applied sequentially at 6 weeks provided improving nutsedge control through the summer and resulted in near complete control at 95% at the end of September. Halosulfuron at 0.062 lb a.i./A showed only 65% control after the first application and a sequential application at 4 weeks improved control to 92% for only an additional 2 weeks and then control was less than acceptable at the end of the season. Imazaquin at 0.5 lb a.i/A gave less than acceptable but consistent control until sequential applications at both 4 and 6 weeks improved nutsedge control to acceptable levels." Language: English References: 0 Note: "Published January 2008" ASA/CSSA/SSSA Citation (Crop Science -Like - may be incomplete ): Turfgrass Landscape Urban IPM Res. Summ. p. 30-34.Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=139383 If there are problems with this record, send us feedback about record 139383 . Choices for finding the above item : Web URL(s): https://extension.arizona.edu/sites/extension.arizona.edu/files/pubs/14462f.pdf b4009236a Find from within TIC: Request through your local library's inter-library loan service (bring or send a copy of this TGIF record)
