Trunk wraps, in theory, help prevent sun scald on thin-barked trees such as maple or birch in sites where trunks are exposed to direct winter sun from the south and southwest. Wraps also may offer protection from frost crack injuries, which usually occur during winter months due to extreme environmental conditions. They also offer some protection from rodents and maintenance equipment. Recently, however, this practice has been questioned. The decision on whether to apply a tree wrap should be made on a tree-by-tree basis.
Sometimes a newly planted tree will require additional support, anchorage or protection. Trees can be staked for any of the following reasons:
Prolonged staking not only reduces the taper of the trunk, but also slows the growth of the tree and may create a hazard, particularly if guy wires are not clearly flagged. Follow-up management of the wires attached to the tree trunk is mandatory. Girdling can become an irreversible problem, if wires are left more than one growing season.
Recently planted small trees can benefit from stakes placed around them as a protection method. When they reach sufficient size, the stakes should be removed. There are no wires attaching the stakes to the trees when used for protection. A 3-to 4-inch layer of organic mulch around the base of the tree also offers protection from mechanical equipment.
Return to: Cultural Practices