Natural farmer Joel Salatin rotates his cattle from one pasture to another every few days, and then runs free-range chickens behind them. The chickens scratch through the manure the cows left behind, scattering it around and eating all the insect larvae they can find (including fly maggots). Not only does this help keep the fly population down, but it helps break up the parasite cycle in the cattle.
If you aren't familiar with Joel Salatin's farming books, you should check into them. http://www.polyfacefarms.com/books.aspx
You Can Farm
Salad Bar Beef
Pasture Poultry Profits
Everything I Want to Do is Illegal
Holy Cows and Hog Heaven
Family Friendly Farming
Leah Sattler wrote:
I have always wondered about those. Do think there would be some way to establish a population so that you wouldn't have to keep buying them?