Hello, This past spring we planted 39 Chardonel grafted vines. They grew well and most reached the mid wire (for mid wire cordon training) and in some cases were trained along the wire in both directions. When we removed the grow tubes this fall, some had roots like the attached picture. 1) Are the small roots actually scion roots instead of root stock? 2) Should they be removed? (hope so, because that's what we did) Thank you very much for any help or opinions you can offer.