Natural Fly Repellant – A Zip Lock Bag of Water: Fill a zip lock bag with water and 5 or 6 pennies and hang it in the problem area.Many people swear that a zip-lock bag filled half-way with water and attached over entry-ways will repel flies. No one yet knows how or why it works, but there is speculation that it has something to do with the way the moving water refracts light. Read these reviews. It works.
A great tip for keeping flies at bay, cut a lemon in half and add cloves to it. Set out in bowls about 30 min before food will be going on the table. The smell with leave your party pest free (at least the little kinds).
Essential Oils to make a Homemade Fly Spray 1 Spray Bottle (Mine is 12 ounces) 2/3 Cup of White Vinegar 1 3/4 Cup of Water 10 Drops of Tea Tree Essential Oil (Melaleuca) 10 Drops of Lavender Essential Oil