How to Seal Splits in a Tree

Splits on the trunk of a tree or on the branches can occur due to weather or other environmental factors. Bark splits are not likely to be fatal to trees, and with proper treatment, many splits can be sealed so the tree can heal and continue to grow.

Things You'll Need

• Power drill
• Twine
• Bolts
• Washers and nuts
• Wood sealant
• Silicone caulking

Instructions

1. Examine the split of the tree and determine the damage. Prune the tree, if necessary, to reduce the weight on a branch or part of the tree.

2. Build support by putting the split back together and holding it in place to do the rest of the repairs and sealing. Use twine or rope to temporarily hold the split together. Remove promptly so you do not choke or kill the tree.

3. Winch the tree together above the split. Drill through the split and drill brass bolts to secure. The tree will heal and grow over the steel eventually.

4. Use natural shellac wood sealer or a tree-pruning sealer to seal the split further and to protect the tree from insects and disease.

5. Use a silicone caulking to keep water and ice from fracturing the seal.

Tips & Warnings

• Remember to access your surroundings and use proper safety methods and equipment when repairing a tree split.

References

• Department of Environmental Conservation: Care and Pruning of Damaged Trees