I need advice on how to eliminate/control weeds in my bahia lawn. I have a lawn service, but the tech told me there was nothing available that would kill the weeds without also damaging the bahia. With that strategy, my lawn will eventually become all weed. Is there any product available that will kill/control the weeds, but not damage the bahia grass. He fertilizes and controls the insects, but no remedy for the weeds. Never heard of that. Is he correct or do I need a new lawn service. Thank You !!