Technical Tree Services

What are Technical Tree Services?

Our suite of technical tree services include the use of internationally recognised technology and diagnostic tools to gain a clearer understanding of tree health and what is happening beneath its bark.

By investing in the latest technology, Independent Arboricultural Services can provide comprehensive reporting and advice without causing trauma to the tree or introducing unnecessary risk to the inspecting Consulting Arborist.

Our Technical Tree Services

Sonic Tomography

Using the PiCUS Sonic Tomograph, our sonic tomography service is a non-invasive tree risk assessment tool which allows us measure the thickness of the residual wall of trees to detect and assess internal defects such as cavities or decay.

Depending on placement, acoustic tomograms can also be used to reveal important safety information about the breaking risk near branch wounds and in the area surrounding above ground cavities.


The Resistograph is an instrument utilised by our Arborists to detect the extent of decay and cavities in trees using a micro drill and special software. Using a Resistograph, Arborists can detect the presence and extent of wood decay, stages of rot, hollow areas, cracks and ring structure with the degree of resistance illustrated on a graph.

Tree Tilt Sensors

This Wind-Reaction-Measurement device is used to detect the dynamic sway motion of a tree by measuring the root plate tilt in naturally occurring wind. The reaction of a tree is measured directly, including all environmental influences including tree specific parameters such as tree size and form (e.g. crown form etc.), wind strength and wind exposition (e.g. by buildings and other trees within the vicinity of the measure tree).


We can provide reference-friendly tree maps that provide a clear indication of where trees are placed and what corrective action has been taken. Maps are produced using hand held GPS and (optional) Trimble R2 devices.


From time to time, our drone (DJI Mavic Pro) is used to gain a birds’ eye view of a tree and the broader property. This device is also used to carry out visually inspections of the upper limbs and canopy of individual trees, particularly for veteran or other structurally vulnerable trees.

When seeking the services of a reputable Consulting Arborist, you should seek assurance that all recommendations for required tree work will be made in accordance with the Australian Standards AS 4373:2007- pruning of amenity trees and AS 4970:2009- protection of trees on development sites.

Independent Arboricultural Services holds current industry memberships with the Queensland Arboricultural AssociationArboriculture AustraliaBrisbane Development Association and the International Society of Arboriculture.

PiCUS Sonic Tomograph  visualisation of decay within a tree.

PiCUS Sonic Tomograph visualisation of decay within a tree.

PiCUS Tree Motion Sensor 3  measuring root plate movement

PiCUS Tree Motion Sensor 3 measuring root plate movement

Resistograph in protective travel case

Resistograph in protective travel case

Microscope image of pest infestation.

Microscope image of pest infestation.