by TJ Yurko
Tree care is a holistic practice that is part art, part science, and all about the intricate balance between nature versus nurture. Pruning achieves this balance by improving tree health, aesthetics, and safety. By understanding how to achieve this balance, you can keep your trees standing tall for many years to come.
Big Trees, Big Responsibility
Pruning techniques vary based on a tree’s age, size, and species. Young tree pruning focuses on developing a strong framework by creating good structure. As trees grow and mature, pruning shifts toward maintaining health and safety. Tree size proportionately affects pruning complexity, with larger trees requiring know-how of chainsaws, ropes, climbing, rigging, and aerial lifts. Tree species also influences pruning response and compartmentalization. Therefore, researching and personalizing a maintenance plan for your tree ultimately helps promote its long-term health and vitality.
Making the Cut
Proper pruning technique is key. Improper pruning cuts cause stress, decline, and even death, so don’t bark up the wrong tree with bad pruning habits. Instead, follow these guidelines for proper pruning cuts every time:
- Define pruning objectives.
- Preserve the tree’s natural shape.
- Remove dead, damaged, and diseased branches.
- Reduce overextending branches.
- Avoid removing > 25% of the canopy.
- Avoid pruning oversized branches (> 4” diameter).
- Apply the three-cut method for larger branches.
- Make the final cut just outside of the branch collar.
- Use clean, disinfected tools.
Safety First
Safety is paramount when pruning large trees, so use basic safety considerations to prevent accidents and injury:
- Follow ANSI Z133 Safety Requirements.
- Wear CSA-approved personal protective equipment and fall-protection systems.
- Inspect and maintain equipment regularly.
- Ensure work area is clear of hazards.
Pruning is a skilled task that requires exceptional knowledge and precision. When in doubt, consult with a professional arborist to ensure your trees receive the best care possible.
