dont pull the nutsedge. It has little "nuts"/Tubers all along the root hairs and when you pull the plant it spreads by leaving those little tubers in the ground. Just spray it and kill it top down.
*edited to add*
Nutsedge is an edible plant for all you foragers out there :-)
*edited to add*
Nutsedge is an edible plant for all you foragers out there :-)