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Strength of trees reduces with age
Older trees have a longer time to develop defects than younger trees. They also have a lower living:dead mass ratio. Older trees are often the first to be damaged in a storm.
Defects such as decay, bark inclusions, and cracks are more common in older trees. While young trees can be placed on a preventive program to help them develop a sustainable structure, older trees should be placed on a "track and treat" program as needed to manage risk.
