Bi-Fly The Ultimate in Fly Control Unique (RSA Pat. Appln. No. 2019/00754) 100% organic, zero toxins, fly control program. Bi-Fly your essential base element within any holistic fly and ammonia control program across animal husbandry environments. Bi-Fly's unique blend of naturally occurring fine organic particulates with a touch of magic - eh voila! An environmentally sound solution to the most common stable challenges-Flies & Smells. Tried and tested in the most demanding of yards,even chicken houses! Check out user testimonials. 100% safe, toxin free: you wont inadvertently poison your dog or child! yet decimate your fly population at a fraction of the cost of tapes or chemical sprays (Bi-Fly ave cost less than 8 bucks a day when used as directed) + you loose the smell of urine & inevitably use less shavings it's win,win,win with Bi-Fly