25/02/2026
Pruning cut technique," is an educational diagram demonstrating the correct and incorrect ways to remove a large tree branch. It highlights how improper cuts can lead to disease, poor healing, or physical damage to the tree.
The image is divided into four panels, labeled A through D:
BREAKDOWN OF PRUNING TECHNIQUES
A. CUT IS TOO FAR FROM STEM (STUB IS TOO LONG)
• Visual: A long, protruding piece of the branch (a stub) remains after the cut.
• The Problem: The tree cannot effectively grow over a long stub. This dead wood eventually rots, providing an entry point for fungi and insects to travel into the main trunk.
B. CUT IS TOO CLOSE TO STEM (FLUSH CUT)
• Visual: The cut has been made flat against the trunk, removing the "branch collar" (the swollen area where the branch meets the stem).
• The Problem: The branch collar contains specialized cells that help the tree seal the wound. By removing it, the tree’s natural defense system is compromised, leading to slower healing and a higher risk of decay in the main trunk.
C. HEAVY BRANCH SAWN WITHOUT UNDERCUT (TEARING DAMAGE)
• Visual: The bark is ripped and stripped down the side of the main trunk.
• The Problem: When a heavy branch is cut from the top down without support, the weight of the falling branch causes it to snap before the cut is finished. This peels away a long strip of bark and living tissue from the trunk, creating a massive, jagged wound that is difficult for the tree to heal.
D. CORRECT SAWING OF A LARGE BRANCH (THE 3-CUT METHOD)
• Visual: This panel shows the "Undercut" technique, which is the industry standard for preventing the damage seen in Panel C.
• The Technique:
• 1st cut (Undercut): A notch is made on the underside of the branch, a few inches away from the trunk.
• 2nd cut (Top cut): A cut is made from the top, slightly further out than the first cut. This allows the heavy branch to fall away cleanly without tearing the bark back to the trunk.
• Final cut: Once the weight is gone, the remaining stub is removed just outside the branch collar (as hinted at in the diagram).