I got out of my car about half an hour ago and within seconds I had a deerfly bite on my arm. Running they're not so bad, but there is about a quarter mile near a pond and cattle pasture, where they will chase me down. For gardening, Bite Blocker keeps them off, plus I have a mesh hoodie, but I'm not going to put on repellent to go places in the car, dangit! They're just awful here. Our neighbor has horses ... There are a few horseflies around, but they're not terribly aggressive, and unlike the deerflies, you can see, hear and feel them coming before they bite.