Yeah, my uncle who is a farmer uses i t to stop cows eating the other side of the grass.
Surely, it would defer a fox? I am hoping so anyway.
Worth a try. I wouldn't like to land on barbed wire if i was a fox. Haha
It helps keep cattle, horses, or other large livestock from reaching over or under a fence because they lead with their noses which have no hair on them, and - especially in the warmer months while they are on pasture - their hair is short so they will feel the barbs. I don't think it will be very effective at all on a thicker, long-haired animal like a fox or coyote. In my opinion, you'd be better off using electric fencing.