This is a repost since I posted it as an answer in the "files" thread.
There are stories of repelling flies by putting pennies into a ziplock plastic bag, filling it with water and hanging it in a area where you want to repel flies. You don't need the pennies, the water alone will do the job..flies have many eyes and the way the sun reflects through the baggie and water is a prismatic effect on the fly confusing it directly with it's directional values of the sun..which is the way thier gps works..they tend to stay away from it... it also works with wasps.:thumb:
There are stories of repelling flies by putting pennies into a ziplock plastic bag, filling it with water and hanging it in a area where you want to repel flies. You don't need the pennies, the water alone will do the job..flies have many eyes and the way the sun reflects through the baggie and water is a prismatic effect on the fly confusing it directly with it's directional values of the sun..which is the way thier gps works..they tend to stay away from it... it also works with wasps.:thumb: