How do you get rid of horseflies?

How to Get Rid of Horseflies

Horseflies, deer flies and the yellow fly are in the same family and can be effectivly trapped. Visit http://www.bitingflies.com for more information.

Or just to improve this answer a little, you could go and buy some fly spray? Its quite cheap and you can get it at all local tack shops near you :) if your horse has a problem with flys in his/hers ears i'd recommend you get the fly gel as you can rub that in there ears or you can just spray a small amout on your hand and rub AROUND the ear, not in. Hope this helped :)