Bark Inclusion – Definition & Detailed Explanation – Botanical Terms Glossary

I. What is Bark Inclusion?

Bark inclusion is a common tree defect that occurs when a branch or stem grows too closely to the main trunk of a tree, causing the bark to become trapped between the two. This results in a weak connection between the branch and the trunk, which can lead to structural issues and potential failure of the tree. Bark inclusion is often referred to as included bark or bark inclusions.

II. How does Bark Inclusion occur?

Bark inclusion typically occurs when a branch grows too closely to the main trunk of a tree, causing the bark to become trapped between the two. As the branch grows in diameter, the bark becomes compressed and can eventually become embedded within the wood of the tree. This weakens the connection between the branch and the trunk, making the tree more susceptible to failure.

III. What are the effects of Bark Inclusion on trees?

Bark inclusion can have a number of negative effects on trees. The weak connection between the branch and the trunk can lead to structural issues, such as splitting or breaking of the branch. This can result in damage to the tree and pose a safety hazard to people and property below. Additionally, bark inclusion can restrict the flow of water and nutrients within the tree, leading to decreased overall health and vitality.

IV. How can Bark Inclusion be prevented or treated?

Preventing bark inclusion is best done through proper tree pruning techniques. By removing branches that are growing too closely to the main trunk, the risk of bark inclusion can be minimized. If bark inclusion has already occurred, treatment options may include cabling or bracing to provide additional support to the weak connection. In severe cases, the affected branch may need to be removed entirely to prevent further damage to the tree.

V. What are the common tree species affected by Bark Inclusion?

Bark inclusion can occur in a wide variety of tree species, but it is most commonly seen in trees with strong upright growth patterns, such as oak, maple, and pine trees. These species are more prone to developing bark inclusion due to the way their branches grow and interact with the main trunk. However, bark inclusion can occur in any tree species if the conditions are right.

VI. How can Bark Inclusion impact tree health and stability?

Bark inclusion can have a significant impact on the health and stability of a tree. The weak connection between the branch and the trunk can lead to structural issues that compromise the overall stability of the tree. This can make the tree more susceptible to wind and storm damage, as well as insect and disease infestations. Additionally, the restricted flow of water and nutrients within the tree can lead to decreased health and vitality, making the tree more prone to decline and eventual death. Overall, bark inclusion is a serious tree defect that should be addressed promptly to ensure the long-term health and stability of the tree.