Cleft: A split or crack in the trunk of a tree, often caused by weak branch angles or heavy snow or ice.
Think of a cleft as a wound in a tree’s trunk. A split can occur when a branch joins the main trunk, especially if the branch angle is narrow, creating a weak point. Heavy snow or ice can also stress branches and cause them to split away from the trunk, creating a cleft.
Clefts are a concern in a home garden because they can weaken a tree and make it more susceptible to disease and insect infestations. If you notice a small cleft developing, you might be able to prune the branch above it to prevent further splitting. For larger clefts, an arborist might need to install cables or braces to support the tree. Regularly inspecting your trees for signs of clefts is a good way to maintain their health and safety.
Disclaimer: This post is for informational purposes only and should not be construed as health, wellness or nutrition advice. Please see our full disclaimers here.
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