re: Armadillos tearing up my yard & oak trees

My grandmother thought that she could keep armadillos out of her garden by putting a few mothballs around it, and I read somewhere that they hate the way ammonia smells.

I don't know how you could use the ammonia around your trees, but you might try putting some mothballs around them. I honestly have no idea whether either one of those things will work, though.