The main reasons for pruning ornamental and shade trees include:
Pruning can also be used to stimulate fruit production and increase the value of timber.
Pruning is cyclic by nature - it should be considered a process, not an event. Careful and correct pruning produces structurally sound trees that can better withstand the adverse environmental conditions they are subject to. Additionally, properly pruned trees require less cabling, bracing, and disease and pest management to maintain good health. Appropriate pruning will improve aesthetics while prolonging the useful life of trees.
The optimal time for pruning depends on the type of tree:
For more information on pruning, see these ISA pages:
Cabling and Bracing
Cabling and bracing can be used to extend the aesthetic value and health of heritage trees. It is important to preserve trees when their roots, trunks, or limbs are threatened by the actions of nature or people. The preservation of mature trees depends on preventing damage where possible and mitigating the impact of damage once it has occurred.
Cabling consists of flexible wire cables used to brace trees together and
to strengthen weak branch attachments. Cables are usually used to reduce the
load on weak branch attachments and long limbs.