[Black Agnes]

MMMM, retention ponds...skeeters just LOVE retention ponds!

[RonF]

Commercial establishments put aerators in their ponds; the water motion, and the fact that the water circulates through a pump, usually handles the problem. For residence-based retention ponds, one can throw in an EPA-approved insecticide that'll do the job.

A few smallmouth bass tossed in the pond will do the job, too. They don't winter through, though, unless the pond is deep.