• ‘Picus’ Sonic Tomograph &  ‘Resistograph’ decay detection drill - We are experienced in the use and interpretation of both types of equipment, which are available for hire [with experienced operator]

• The 'Picus' is most suited to large diameter or important specimen trees and offers an unrivalled level of information, whereas the ‘Resistograph’ offers versatility, and can be used in the crown of a tree - see section on aerial inspections

• "For technical information on the ‘Picus’ Sonic Tomograph & IML ‘Resistograph’, use this link to the main distributor – Sorbus International"

‘Picus’ equipment in use on a large Beech with Ustulina deusta

The butt of the same tree after felling, showing extensive decay

Tomogram from the same tree