I found this on the Home Depot website - has anyone ever used these for fly control around chicken coops? They are called "Ladies in Red" and cost around $45 + shipping (not sold in the stores, apparently). If you have used these, or have an opinion, I'd be interested - if there is not a big advantage to these I'll go with the standard traps (fill, bait, throw away).
Fly parasites are safe for people, and animals. They are gnat sized, nocturnal, burrowing insects that do not bite, sting or become a nuisance. This little bug is so effective because it kills the flies before they hatch. The female Fly Parasite will lay her eggs inside the fly egg, and use it for nutrients. The flies will not hatch; instead more Fly Parasites will hatch. They are very easy to use, and will significantly reduce your fly population.
* safe for people and animals
* This little bug is so effective because it kills the flies before they reach the adult stage
* Start releasing when temperatures in your area are starting to warm
* Fly Parasites are safe, economical and easy to use
* MFG Brand Name : LADIES IN RED
* MFG Model # : 540
* MFG Part # : 540
Fly parasites are safe for people, and animals. They are gnat sized, nocturnal, burrowing insects that do not bite, sting or become a nuisance. This little bug is so effective because it kills the flies before they hatch. The female Fly Parasite will lay her eggs inside the fly egg, and use it for nutrients. The flies will not hatch; instead more Fly Parasites will hatch. They are very easy to use, and will significantly reduce your fly population.
* safe for people and animals
* This little bug is so effective because it kills the flies before they reach the adult stage
* Start releasing when temperatures in your area are starting to warm
* Fly Parasites are safe, economical and easy to use
* MFG Brand Name : LADIES IN RED
* MFG Model # : 540
* MFG Part # : 540