How to Seal a Cut Limb on a Tree

Answer

It is recommended that you leave a severed tree limb alone and let the tree to naturally heal the wound over the period of one or two years. This should be done in the majority of situations. However, depending on the specifics of the situation, a tree may need a little assistance in order to maintain its overall health. If, for instance, a limb is chopped off during the spring or summer, when the tree is more likely to be vulnerable to insects and disease than it is during the autumn or winter, then sealing the stub that is left from the removed limb will protect it from any potential damage. Additionally, a tree is unable to mend itself if the climate is becoming progressively dry, such as during a drought; thus, sealing the cut area will assist the tree in maintaining its moisture levels.

  1. Ensure that there are no rough edges left behind from where the tree limb was chopped. To make the surface even and smooth, saw off a thin segment about half an inch from the end of the limb stub. The space that was originally occupied by the limb should now extend around 1 to 2 inches outward from the stem of the tree. Put on protective eyewear and gloves to shield your eyes and hands from flying debris and the blade of the pruning saw.

  2. The limb stump was covered in dust and dirt. This cleans the stub and prepares it for the application of liquid pruning sealer in the correct manner. If the dust were to be left on, the sealer might be removed using a brush if the dust were to become loose.

  3. To apply the liquid pruning sealer to the limb stub, first dip a paintbrush into the bottle of liquid pruning sealer, and then use the paintbrush to apply the sealer. To ensure that it completely coats the wood, brush the sealer in a back-and-forth motion over the stub and all around its edges.

  4. After giving the sealer an hour to cure, inspect the stub to make sure that it is entirely coated with the sealer. If you notice an area that isn’t sealed, you should repaint that portion such that it covers the bare region.

    Things You Will Need

    • Safety glasses

    • Gloves

    • Pruning saw

    • Liquid pruning sealer

    • Paintbrush

    Tip

    When a limb has broken off flush with the tree trunk, this is another situation in which you should seal the tree where the limb formerly was. If the break occurs along the surface of the trunk, the tree will have a difficult time closing the wound on its own.