field of soybeans with pigweed
Cyperus rotundus | Turfgrass Weed Control Database

Turfgrass Weed Control Database


The Turfgrass Weed Control Database contains the same information and pictures included in the Miscellaneous Publication MP-521. The weeds are arranged alphabetically by scientific name because common names vary and thus be inaccurate.
Purple Nutsedge, Cyperus rotundus
Cyperus rotundus
This is the most difficult sedge to control. Repeat applications will be needed. Monument (trifloxysulfuron), Certainty (sulfosulfuron) and Dismiss South (sulfentrazone + imazethapyr) provide temporary suppression of purple nutsedge. SedgeHammer + (halosulfuron), while slightly less effective is safe to use on all turfgrasses. Image 70 DG (imazaquin) is an effective herbicide for suppressing sedges in warm season turfgrasses. Image may cause stunting of turfgrasses.