The flies are not on the food, they land on the ceiling of my covered patio every time we light the wood-burning BBQ. Are they just hanging around until the food is ready and off the fire? Are they attracted by the grease?|||Grease Vapor is sticking to your ceiling ,and they enjoy this very much.They wont lay any eggs since its on the ceiling,and not enough to raise a poor lil maggot. Its harmless for the most part,but a little bleach up there would solve this problem. Of coarse there better off up there then on your food. Hmmmmm desicions desicions|||They are doing the same thing as your neighbor does, but your neighbor doesn't land on the ceiling...he hangs on your fence...both hoping for an invite.|||good way to smoke them right out.........they are bad

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