We generally have Bluegrass or Fescue. I have noticed in years past that there are small patches of bermuda poking its way through and killing our our other grasses. The last couple of years, I have used Round up to do a total kill and reseeded. Seems like I get a good stand of grass but the Bermuda always seems to come back. This year I am trying Acclaim once a month to control it and it seems to be working. Has anyone else done this or am I just wasting my time.