A SMALL STRIP OF COPPER WIRE OR A CHICKEN ELECTRIC FENCE WILL SOLVE IT CONECTED to a small car battery on at night off in the day, it wont harm the badger but it will teach him them that ther=y will get a small jolt if they come near ,, and after a while this burns into there memory and even when you take it down they still avoid that area as if the fence is still there ,,, the same meth ,, is used to keep mink out of ponds..