I noticed tonight the bermuda around the bird bath had about 1/4" of green poking out. Going to spray Glyphosate tomorrow to kill the winter grass/weeds and lay down the Crab-grass preventer. Might lose a little bermuda, but it will catch back up quick. I'd be afraid of waiting any longer.If it's still dormant (I started seeing green in mine about a week ago) you can use Round Up (or anything with glyphosate in it)