Picus Tomograph for Dorset County Council
Recently Dorset County Council's Tree Officer required Banyards' Picus Sonic Tomograph equipment to survey one of the three largest and oldest Cedar trees in the country. The tree's girth at the base is 11.6 metres.
Because of the size of the tree three Picus Tomographs were required - Dorset County Council's, Banyards' and one supplied by Fujikura who also had a technician on site during the process. Using a total of 30 sensors around the tree (the largest number used on a single tree survey), readings were taken at 20cm above ground level, 50cm, 270cm and 520cm. Banyards provided a tree surgeon climber to attach the sensors for the final two readings.
This survey is an excellent demonstration of the benefits of Partnership working and Banyards’ ability to provide Dorset County Council with the resources of a large private sector contractor.

The Cedar Tree at Lytchett Manor, Dorset

3 Picus Tomograph sets

Banyards’ tree surgeon climber (r) helping
To attach the Picus sensors

Dorset County Tree Officer (r) with
Fujikura’s Technical Representative

Picus sensors at 20cm above ground level

Graphical representation from one of the Picus readings


