I had someone to call the other day with a Centipede lawn that had fescue,poa anna, and chickweed in it. It also had some other broad-leaf weeds in it. I can spray Speedzone Southern for the broad-leafs but what do you recommend for the grasses. Also, when do I spray the centipede, now or after the centipede greens up. I deal mostly with Turf-Type fescues. I will be spraying with a PG and I am licensed.