“I have a pryhanna fly system in my barn and use a feed through fly supplement for my 13 horses but I still have flies after they have been in their stalls all day. So after I clean stalls in the evening - I spray this Dy-fly for 8-10 seconds around each stall ….makes a HUGE difference as it kills about 95% of the flies within about 5 minutes of spraying”
“The ProZap Dy Fly I oredered came quickly and the item was as described by the seller. I'm pleased so far with the effectiveness of the spray. I would recommend this product and Allivet to others and would not hesitate to order horse supplies from them again.”