i have 3 pics

3rd pic

You can go to goggle search and put in north Carolina state turf filies and under Bermuda grass.they have a nice chart like page to help you identify weeds.left side scroll through weeds check the pic,description of weed.and then chemical that's kills them.i used the site for weed info and use the chemical list to kill them,it works great.
There will be a few different sites pop up but the one under Bermuda grass is the best.doesnt have anything to do what kind of grass you have.its under Bermuda .

Turflon Ester should get it or Tzone purple if cool season grass.