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Common Types Of Tree Pruning

Here we outline and explain several common types of tree pruning used by the Arbour team.

This includes detailed information on crown thinning, lifting and reduction.

  Tree Pruning - good arboricultural practice

Pruning should aim to remove no more than 15 - 20 % of the crown at any one time. Pruning aims to develop a strong and well balanced branch structure.

  Crown Thinning

This is the removal of a small portion of the secondary and small live branches throughout the crown. Thinning should produce a uniform density of foliage around an evenly spaced branch structure and reduces the density of the crown without altering the shape and form of the tree.

• Thinning allows more light to pass through the crown, reduces wind resistance and can lessen the weight of heavy branches.
• Crown thinning includes crown cleaning - the removal of dead, dying, diseased, crossing, crowded and weakly attached branches of low vigour.

  Crown Lifting

The removal of the lowest branches and preparing of lower branches for future removal. Crown lifting should avoid creating large wounds on the main trunk of older trees as these may take many years to heal. To avoid lack of balance after crown lifting the crown should be at least 2/3 of the total height of the tree.

• Useful for allowing more light into a property.
• Provides clearance above roads, footpaths and smaller out buildings, such as sheds and garages.

  Crown Reduction:

The reduction of the crown of a tree, or the tree itself, whilst maintaining its natural shape and form as far as practicable. The ends of the branches should be removed back to a suitable growing point (i.e. internal lateral branches) and the diameter of the remaining branch should be at least 1/3 of the diameter of the branch that is removed.

• Ideal for preventing branches contacting buildings, roofs and gutters.
• Removal of branches obstructing street lighting, overhead cables, signs and other infrastructure.
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