@jcboy,
In LA, some city department (mosquito abatement?) gave away fish to eat the mosquito larvae.
So, a little pond adaptation - my own pond was a 36" wide concrete container with drainage and pump cord holes on the side (which I could stop up with a rubber stopper or silicone) and gravel part of the way up (it was also about 36" high), water hyacinths, a pump spout for water movement, and, the fish - cheap at any pet store that sells fish (name like gambusa).
Then all you have to watch out for are night herons that like fish.