Dogwood Tree Bark: Normal vs. Problematic
Dogwood trees are beautiful ornamental trees that are native to North America. They are known for their stunning fall foliage and attractive bark. However, sometimes dogwood tree bark can start to peel, which can be a cause for concern.
Normal Causes of Peeling Bark on Dogwoods
In some cases, peeling bark on dogwoods is perfectly normal. Here are a few common reasons why dogwood bark may peel:
- Kousa dogwood: This type of dogwood tree has bark that naturally peels off in irregular patches, revealing a mosaic of mottled colors underneath.
- Wildlife activity: Wild animals, such as deer and rabbits, may rub their antlers or bodies against dogwood trees, causing the bark to peel.
- Sunscald: Young dogwood trees that are exposed to harsh winter sun may develop peeling bark.
- Drought: Drought conditions can cause the bark near the base of the tree to crack and peel.
Problematic Causes of Peeling Bark on Dogwoods
While some cases of peeling bark on dogwoods are normal, there are also some instances where it can be a sign of a problem. Here are a few common causes of problematic peeling bark on dogwoods:
- Dogwood anthracnose: This is a fungal disease that can cause yellow leaves, twig dieback, and sunken, discolored areas of tissue on the bark.
- Basal trunk canker: This is a fungal disease that causes splitting and loss of bark at the base of the tree. It can also cause lesions that weep sap.
- Dogwood twig borer: This is a small insect that bores into the vascular tissue of the tree, causing the bark to upheaval and peel.
- Apple tree borer: This insect can also bore into dogwood trees, causing similar damage to the bark as the dogwood twig borer.
- Scale insects: These insects can infest dogwood trees in large numbers, making it appear that the bark is peeling.
How to Treat Problematic Peeling Bark on Dogwoods
If you notice that your dogwood tree has peeling bark, it is important to determine the cause so that you can take the appropriate steps to treat it.
- Dogwood anthracnose: This disease can be treated with fungicides.
- Basal trunk canker: This disease can be difficult to treat, and it may be necessary to remove the affected tree.
- Dogwood twig borer: These insects can be controlled with insecticides.
- Apple tree borer: These insects can be controlled with insecticides or by removing infested branches.
- Scale insects: These insects can be controlled with insecticides or by manually removing them from the tree.
How to Prevent Peeling Bark on Dogwoods
There are a few things you can do to help prevent peeling bark on dogwoods:
- Choose the right location: Plant dogwood trees in an area that is protected from harsh winter sun and strong winds.
- Water your trees regularly: Especially during dry spells, to help prevent drought-related peeling.
- Inspect your trees regularly: Look for signs of disease or pests, and take appropriate action if necessary.
By following these tips, you can help keep your dogwood trees healthy and looking their best.
