Nutsedge is one of the most challenging weeds ... The main active ingredient is Halosulfuron-methyl 5%, which comes in a liquid or powdered form. It's a systematic herbicide that moves through ...

There are two common products for control of nutsedge. One is a product called Sedgehammer with the active ingredient Halosulfuron. The other common product is Ortho Nutgrass Killer which contains ...

"Herbicide products that contain Sulfentrazone or Halosulfuron-methyl are designed to control sedges when applied correctly," ...