TREE GROWTH MANAGEMENT

A practical approach to managing trees in constrained locations

 

Trees growing near powerlines, roads, buildings and other infrastructure can require frequent pruning to maintain clearance and manage risk.

Where appropriate, tree growth regulators may help moderate shoot growth, extend pruning cycles and reduce ongoing maintenance requirements. Xylem provides specialist advice to councils, utilities and infrastructure managers on whether these treatments are suitable and how they can be incorporated into an existing tree-management program.

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How tree growth regulators work

Paclobutrazol-based tree growth regulators, such as Cambistat, are applied to the soil around a tree’s root zone. They reduce the production of plant hormones associated with shoot extension, producing shorter internodes and more compact growth.

Treatment does not stop growth or replace regular inspection and pruning. It is one tool that may support a broader vegetation-management program.

 

Where they may be used

Tree growth regulators may be considered for trees:

• Beneath or near powerlines

• Beside roads and infrastructure

• Conflicting with buildings, lighting or services

• Requiring frequent clearance pruning

• Growing in constrained streetscape environments

Suitability depends on the tree species, health, age, site conditions and management objective.

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Xylem’s services

Xylem can assist with:

• Identifying and assessing candidate trees

• Developing treatment programs and trials

• Preparing application specifications

• Establishing baseline tree and growth data

• Mapping and recording treated trees

• Monitoring tree response and growth

• Reviewing pruning-cycle and maintenance outcomes

Our recommendations are based on the characteristics of each tree and site, expected operational benefits and relevant product and regulatory requirements.

 

Talk to Xylem

Considering tree growth regulators for a council, utility or infrastructure program?

Contact Xylem to discuss your trees, current pruning requirements and management objectives.