I've always had luck with Skin So Soft mixed half and half with water (and shaken before using). It takes care of mosquitos and no-see-ums. The no-see-ums seem to land and just stop.

But there hasn't been much of a bug problem on AC in the months we've been there (Dec, Jan, Feb). Just some mosquitos at dusk. I understand that the mosquitos go away in June, July.

If you find something that stops biting flies, let me know.

Mike Ryan