I am curious as to what the rest of the members have to say on the matter of controlling the common house fly as well as the black and the horse fly. This question goes out to those whom have large animals such as dogs, horses, llamas, emu's, Aupacka? SP. Since sanitary conditions are the major IPM for the control of flies in every setting, sometimes it can a far tunnel to follow in controlling these pests. Keeping animal excrement picked up and disposed of. Throwing away of all containers that may contain food related byproducts, and picking up your dog pooh! Seems easy enough--Doesn't it? The fly comes around when it gets hot--no doubt! It is in all food attracted areas. They are nature's way of eliminating the earth of refuse and disease causing carrion. I have not done any research on the use of an organic material which I will state later. The little research that I have done is the use of rubbing alcohol--grape juice--permethrin--fly or glue traps, to name most that are common. I stumbled across a forum and someone gave some advice on the use of (Diatomacious Earth) at 1% in animal feeds to control the flies from landing and laying maggot larvae. Evidently, this will control the fly if it isn't allowed to lay the eggs and die or allow the larvae to hatch or feed.....then die. Since, DE is formed from the finely ground shells or exoskeletons of deceased mollusks and prehistoric shells, the materials do control mosquito larvae in watery conditions. We call them Mosquito Dunks. Well, the DE tears, slices, the stomach linings of certain insects, and tears the outer linings of soft bodied insects, thus causing death. If you place this material in whatever percentage into the food system of a canine--feline--bovine--swine--equine, would it not cause severe stomach or intestinal disorders. I cannot fathom this advice was given to a person for their pets in order to control the house fly and the garen flies... Does anyone have any hardcore evidence of the uses of DE as such Advised???