Weed: an undesirable plant growing in cultivated ground. Nutsedge fits this description for the average homeowner (unless of course you decided to grow a yard of nutsedge). As you can see from the picture above, nutsedge has a triangular shaped, yellow blade that grows much quicker than the average lawn. The tall height of the weed and unique color make it easy to identify, and an especially troubling pest.
If your yard is only suffering from a few nutsedge sprouts, it may just be easiest to pull them yourself. Otherwise, commercial applications of broadleaf weedkiller will probably be your best bet to tame the weed. Even these stronger chemicals can sometimes take up to 2 weeks to totally eliminate the nutsedge.