Sunscald on Autumn Blaze Maple: Prevention and Installer Responsibility

Sunscald on Autumn Blaze Maple: Prevention and Installer Responsibility

Vertical bark splitting on a young maple above and below the black wrap is sunscald (southwest injury). Winter sun warms the bark, activating cells that then freeze and die at night. The wrap should have been removed in April to prevent girdling and insect habitat.

Prevention Protocol

• Wrap with crepe paper tape in late October; overlap 33%; remove in April.
• Repeat for 2-3 years until bark thickens.
• Do not use black plastic or tape directly on bark.

Current Situation

The installer failed to instruct on wrap removal. Request tree replacement; the damage is preventable and their responsibility.