The plastic film used for grafting and binding should be loosened after the scion germinates and peeled off when it begins to grow in large quantities. If not removed, it will affect the continued growth of the scion. Although you may not die, the probability of death is still relatively large. If you miss the best opportunity to understand binding, you should give up in time. You can directly cut the plastic film vertically with a sharp knife, even if the bark is injured. If it has been pulled into the bark, it is troublesome and needs to be carefully removed.