Tree Pruning: Crown Cleaning, Thinning and Raising

There are three aspects to consider when pruning a tree. Crown cleaning, thinning and raising.

Crown Cleaning

This technique is the selective removal of dead, diseased, broken, or weakly attached branches from a tree crown. The is the most common pruning technique for landscape trees.

Crown Thinning

Thinning includes crown cleaning as well as selective removal of branches to increase light penetration and air movement through the crown, and to reduce weight. Increased light and air stimulates and maintains interior foliage. Thinning toward the tips of a branch can reduce the wind-sail tree. Clearing out too much inner foliage can have adverse effects on the tree and should be avoided. Vigorous production of watersprouts on interior limbs is often a sign of over-thinning.

Crown Raising

Finally, Crown Raising removes the lower branches of a tree in order to provide clearance for building, signs, vehicles, pedestrians, and vistas.

This information is provide by The International Society of Arboriculture.

Please contact us for more detailed information and answers to your specific questions.