Crown maintenance pruning
Crown maintenance pruning does not change the size or appearance of a tree. This type of pruning aims to work with the trees natural form and habit to maintain its viability over the long term. Crown maintenance pruning can include;
- The removal of dead branches.
- Thinning of the crown.
- Formative pruning to control the development of young trees.
- Selective removal of specific branches, usually related to form, obstruction or risk issues.
Crown maintenance pruning typically manages issues that develop over time. This type of pruning can be used to minimise the likelihood of branch or stem failures during of storm events. It is generally applied every 3-5 years.
Crown modification changes the size and or form of the tree through the use of various pruning techniques.
- Reduction pruning; reducing the length of branches and stems back to side laterals or stem.
- Crown lifting; removing or reducing low branches to a specified height
- Pollarding; controlling tree size and shape by annual or biannual pruning back to a pollard head.
- Remedial or restorative pruning; used for trees that have suffered die-back, or storm damage, vandalism, or lopping damage to improve tree form and appearance over time from the growth that remains.
Crown modification pruning is generally applied for specific purposes
- Reduce the likelihood of branch, stem or whole tree failure when managing risk
- As a passive bushfire control measure
- To improve views or modify shading
- For the clearance of infrastructure and other built form
There is potential for short and long term harm to trees within this group of pruning techniques. All forms of crown modification need to be specified by a qualified Arborists for a specific purpose. The work needs to be carried out by a qualified and experienced Arborist.
Reduction pruning can be used to minimise the impacts of storm events on your tree, and generally occurs every 3-5 years.
Habitat & environmental pruning
Arboriculture is more than just about trees. The trees are part of the urban forest, providing a wide range of environmental and societal benefits and values.
Our arborists are trained to actively preserve, or create habitat values and benefits whenever and wherever the opportunity arises. Habitat and environmental creation can include the following;
- Turning a dead or diseased tree into a ‘Habitat tree’.
- Bird or bat box installation.
- Carving bird or bat hollows into existing trees.
- Coronet cuts can mimic natural branch or stem failures, greatly improving tree appearance and blending in habitat trees sympathetically with their surroundings.
Habitat pruning is a specialized area of expertise, and Arbortech is a leader in this field.
Other Pruning Services
Our team are trained in all aspects of pruning. The regular and ongoing maintenance of woody plants in your garden is crucial for their health, stability and longevity. Garden management takes many forms;
- Fruit tree pruning by qualified and experienced arborists.
- Hedge maintenance, pruning or re-shaping by qualified experienced arborists.
- Advice on garden management by qualified and experienced arborists.
Unacceptable pruning practices
In Adelaide and across Australia, a number of unacceptable pruning practices still commonly take place. With the wealth of knowledge and experience past forward through government funded training, mentorships and abundant industry bodies (SASA, ISA etc.), it’s hard to understand how some of these pruning practices are still carried out, by contractors who claim to be ‘Arborists’. Speak to one of our Qualified and experience Arborists today about why the following are not sustainable pruning practices;
The Australian Standard AS 4373 – 2007 Pruning of amenity trees lists unacceptable pruning practices that result in detrimental tree outcomes and should be avoided. These include;
- Lopping or topping.
- Wound painting.
- Flush cutting
These practices can result in a significant loss of tree benefits, excessive epicormic regrowth, structural instability, fungal decay, insect attack and increasing maintenance costs.