We were having trouble with flies at Gramps, so I put about a third of a small can of Golden Malrin in a disposable pie pan (with a rock in it to keep it from blowing away) and then poured about a half a bottle of Coke on it ... the dry bait blows around in the wind and this is supposed to help. Did this in 3 places around the farmstead.

Seemed to work. The only flies were on a dead 'possum in the yard.