FliesBeGone is an effective outdoor fly control product which is non-toxic, pesticide-free, maintenance-free, disposable, and even works on fruit flies and pesticide-resistant flies. One trap will cover half a football field and will catch 20,000 flies, a much broader range and larger capacity than other competing fly traps. FliesBeGone outside the barn and Sticky Roll inside the barn comprise an effective and pesticide-free fly control program for dairies, stables, and premises of all kinds. Kit comes complete with bag, protein-based bait concentrate and instructions. Just add water and hang it up. Lasts approximately one month.