They will nibble, put a chicken wire fence around them until they're mature but, they will also itch on them so, it's best to keep them apart. They ruined my daughters apple orchard, she wouldn't listen.
I have a 40 acre farm which has established olives in it. amongst these olives is grass, so there is a lot of grass for the cows to eat but i am worried that the cows will destroy and eat my olive trees?