Jonna, try a generous powdering of cinnamon on the ground, it is strong stuff, but doesn't seem to hurt plants. It REALLY got rid of a colony of fire ants that were using my okra for a bug farm, they left within an hour.
Remember those little heart candies that were made with cinnamon, burn like crazy!
And, hahahaha, a man asked me if that pot of okra was asparagus! hahahahaha! (no, I didn't laugh out loud at him)