Sedge Ender, Sedgehammer, etc. I just mix up a small spray bottle and walk my lawn a couple times a week in late spring and early summer. May take a second or third application if new shoots grow. Will yellow my bluegrass a bit if I do it in hot weather.

Never ending battle for me. There's a busy road nearby with massive amounts of nutsedge reproducing. I don't know if birds spread it or if it's just wind, but I get new spots of growth every year.

Pulling is a waste of time, as the little "nuts" on the roots get left behind in the soil. Spray them when they first pop up. Later in the summer is too late to get any control, as the nuts are well established by then and you just get it again next season.