I've tried everything. I double the dose so give and am and pm scoop. I think it helps a lot with keeping the fly population under control.
I purchased Zoetis SOLITUDE IGR for our three horses and I have to say that I’m very surprised at how well it really works. We have hardly any flies … even non-horse properties have more! I highly recommend it.
I’ve ordered twice. Both times the product I wanted was priced lower, shipped free and well packaged. I’m impressed.