Dragonflies naturally eat mosquitoes. Ours are particularly recommended for your yard if you have a decorative pool or water fountain because they will lay their eggs in it, their larvae eat other larvae in it, and they will not stray far from it. Our adult dragonflies eat mosquitoes, gnats, flies, and moths on the wing. They eat whiteflies, sawflies, deer flies, midges, wasps, and basically anything that flies and that you don’t want to have around. We deliver to you a large number of male and female larvae in a vial, which you simply dump into your fountain, winter or spring. They metamorphose into adults in about two months, depending in the temperature of the season and their prey in your fountain. After that, conditions being favorable, they are self-perpetuating.