I am the volunteer caretaker of a 300 foot long earth dam on one end of a 3 acre neighborhood pond in Midland, Georgia. The pond is stocked with bass and bluegill.

The grass on the dam is bahia. What precautions should I use for caring for the grass near the lake? I think I can use Scotts Weed and Feed and Scotts fertilizer with 2% iron safely enough. I am staying away from pesticides completely.

Is there a pre-emergent herbicide for preventing crabgrass that I can use by the pond? I haven't found one yet that said it could be used by water.