· Gymgirl *'s Answer
· Keeping your soil moist will discourage ants from setting up shop in the first place. They can't swim...
Also, if you find yourself with an ant community, check the undersides of your plant leaves to determine if they are there because they are "herding" aphids. Aphids secrete a sticky substance that is like catnip to ants. When they locate an aphid population (sucking the life out of your plant through its leaves), they actually "herd" them like cattle, to keep them producing the sticky, sweet substance for themselves.
A regular water blast to the undersides of your leaves will knock the aphids loose to the soil and (hopefully), they should become a meal for some of your bennies (beneficial insects). Remember, not ALL insects are bad...Some actually help us to grow great veggies!
Godspeed and Good Harvest!