"Is Your Tree Hiding a Dangerous Secret? The Risks of Included Bark Unions and What You Can Do"

At a glance this may appear to be a single trunk, the reality is that it is not. This trunk was strapped together with ratchet straps for felling, once it was down the straps were removed and it split clean in two, highlighting just how weak it was.

Understanding Included Bark Unions in Trees: What Homeowners Need to Know

Trees are a valuable asset to any property, providing beauty, shade, and even increased property value. However, not all trees are structurally sound. One hidden danger that homeowners should be aware of is included bark unions.

An included bark union occurs when two branches or stems grow closely together, but the bark between them becomes trapped and does not form a proper collar. This weak spot creates a point of stress in the tree, making it more vulnerable to damage. Over time, this can lead to cracks, splits, or even breakage, particularly during storms or high winds.

Here you can see the large area of included bark above the tear. Structurally this tree was very weak and eventually tore out in high winds, causing significant damage nearby.

The Risks of Included Bark Unions

The primary risk posed by included bark unions is the structural weakness they create. Because the bark is trapped between branches, it prevents the tree from forming a solid bond, resulting in a tree that may not be as sturdy as it appears. As the tree grows, the pressure on this weak union can increase, leading to dangerous situations such as:

• Branch failure: Especially during storms, strong winds, or heavy snowfall.

• Tree collapse: In extreme cases, the entire tree may fall, posing a risk to your home, vehicles, and loved ones.

• Potential for disease: The compromised structure can invite pests and pathogens, further weakening the tree.

What Homeowners Should Do

If you suspect that your trees have included bark unions, it’s crucial to have them assessed by a professional. Regular tree inspections can identify these and other risks before they become a danger.

At Charrington Tree Services, our certified arborists are trained to detect included bark unions and provide the necessary care, whether that’s pruning, structural support, or even removing a compromised tree.

Don’t wait until it’s too late. Contact Charrington Tree Services today to schedule an assessment of your trees and ensure the safety of your property. Your trees will thank you for it!