Tree cabling is a specialist arboricultural technique that enhances the safety, stability, and longevity of trees. It involves adding cables or braces to strengthen weak branches, prevent breakage, and reduce the likelihood of structural failure.
Here’s what you should know about tree cabling:
Why Tree Cabling Is Necessary
- Prevent Branch Failure: Branches that are weak or heavy are more likely to split or break during storms, high winds, or when snow and ice accumulate.
- Increase Stability: Cabling can offer stability to trees that have already suffered harm, such as a cracked trunk or a storm injury.
- Tree Life Extension: By addressing structural deficiencies, cabling can help to extend the life of trees.
- Enhance Safety: Cabling benefits trees near houses, roadways, or public places by reducing the likelihood of falling branches causing damage.
How Tree Cabling Works
- Cables and Braces: Steel cables are placed high in the tree to disperse weight and stabilize branches. Braces, which are typically threaded rods, may be used in conjunction with cables for trunks or severe splits.
- Dynamic vs. Static Systems: Dynamic systems have some mobility and flexibility, which mimics natural tree behavior. Static systems are stiffer and provide maximal support for critical deficiencies.
Signs That Tree Cabling Is Needed
- V-Shaped Forks: Trees with narrow branch angles are more likely to split.
- Heavy Limbs: Branches that reach horizontally or are very heavy may require support.
- Previous Damage: Cracked trunks or split limbs are suitable for cabling.
- Multi-Trunked Trees: Trees with many trunks may need strengthening to avoid separation.