These crews are pruning trees planted within the last nine years. These are smaller crews that are typically working from the ground.
Small, younger trees often have low branches called "temporary branches."
Temporary branches can contribute to the development of a sturdy, well-tapered trunk. They also help protect the trunk from sun and mechanical injury.
However, these types of branches are seldom appropriate for large-growing trees in an urban environment.
Temporary branches need to be kept short enough that they do not obstruct or compete with selected permanent branches in order for trees in the terrace to thrive.
Keep in mind, terraces are hardly unencumbered natural environment, like a forest. Trees along our streets have to fit with the demands of the roads, sidewalks, and paths next to them.
One big benefit is that a properly pruned young trees will need less corrective pruning as they mature.
For more information on pruning techniques and practices (as well as general tree information and care tips), please see the International Society of Arboriculture's tree pruning guide.
