Deadwooding is the process of removing limbs from a tree that have either died, become infested with pests or developed a disease. Removing these limbs will make your tree healthier by removing a source of food for pests and limiting the spread of disease. It also prevents accidents caused by falling limbs and branches.
Crown lifting raises the lower part of the crown of a tree. Crown lifting allows for the removal of low branches so they do not obstruct pathways or brush against buildings. It is also used to clear a view blocked by large evergreen trees. When crown lifting deciduous trees you do not want to over trim or remove major lower branches. Doing so could result in disease attacking the tree or possible decay.
Tree topping is a tree trimming technique that is used to reduce the size of a tree. Often, this method of tree trimming doesn’t discriminate between which branches should or shouldn’t be cut. As a result, the tree is weakened and susceptible to a host of problems like sunburn, decay, pest infestations, and disease.
Tree topping is rarely an acceptable tree trimming technique and is never a
permanent solution. Because tree topping weakens a tree, its limbs can easily break and cause damage to property. Unfortunately, this tactic is still used despite the lasting damage it causes trees.
Crown reduction is a technique used to reduce height and spread of a tree’s crown and should not be confused with tree topping. This method is an acceptable alternative to tree topping. Crown reduction can help trees by reducing the stress that they are exposed to due to overheavy branches or strong winds. Cuts should be made as small as possible and maintain the framework of the tree to keep it healthy.
Wind sailing is a type of crown reduction that removes branches from a tree to
reduce the amount of stress exerted on it by the wind. It should be done carefully to avoid removing too much of the foliage that the tree uses to feed itself. Most healthy trees have adapted themselves to their environment and do not require windsailing. One of the few times that windsailing may be needed are when interior trees in a stand of trees have been newly exposed to the wind by removal of exterior trees that were sheltering them. Another example of when windsailing might be necessary is if a tree’s root structure has been damaged or reduced. E.g. To counteract the reduction in a tree’s stability caused by trenching through a tree’s root system.