For many years Permit has provided rice growers with an excellent option for sedge control. In 2002, when Clearfield rice and Newpath herbicide was introduced it, too, was found to control most sedges. Basically yellow nutsedge (Cyperus esculentus) and annual or rice flatsedge (Cyperus iria) have been the two major sedge pests that rice farmers in the upper Delta have had to deal with.
Yellow nutsedge reproduces mostly by vegetative means by the production of tubers on the root system. Predictably this make resistance slow to develop....More