I got Asian nutsedge all over. It is hard to kill like this Jap crap.
Nutsedge is a tough one to kill, too. I eradicated it by digging under it and sifting through the dirt for all rhizomes. Missed a few of course, so as soon as I saw those sprouting, I dug those areas up again and removed the remaining rhizomes.
Pulling nutsedge is a useless exercise. The Japanese variety simply breaks off at the roots and then the roots send up new shoots. Spraying it with poison seems to knock it back awhile, but unless you eradicate the rhizomes, it always comes back. I hate the stuff, as it grows much faster than grass, so you see the nutsedge blades sticking out of your freshly mowed yard within a day or two of cutting them flush.
Bermuda grass is similar although much easier to kill off. If you let it get into your garden, pulling it out won’t kill it. Even a tiny piece of the roots left under ground will regrow the plant. Tilling the soil makes it even worse in my opinion, as the broken pieces will quickly regrow.