Decay detection forms an important part of ensuring tree stock is healthy and therefore safe, with little or no risk of failure.

 

At CBA Trees we provide the complete decay detection, mapping and analysis service to assist our clients in maintaining a safe and healthy tree stock. Decay investigation is carried out in accordance with industry best practice using the latest diagnostic equipment and techniques and our aim is always to minimise damage to trees when identifying and mapping decay utilising our state-of-the-art equipment, much of which is non-invasive.

 

The extent of decay is normally examined following a full Visual Tree Assessment and may include one or more of the following techniques:

 

Percussion

The surface roots, buttress roots, trunk and main branches are lightly struck with a soft faced hammer (sounding). CBA consultants are trained to recognise changes in pitch where decay or other defects occur. This technique is used as part of the initial assessment, is non-invasive and frequently identifies areas requiring a more thorough and detailed inspection.

 

Soil Excavation

There is a wide variety of decay inducing fungi that infect trees. These may cause decay in branches, the main stem, structural roots and rootplates of the trees below soil level. Inpection of this latter type of decay requires careful excavation of soil to expose the roots and root plate. CBA consultants are trained and certified to use a high pressure Soil Pick (Air Spade) to quickly remove soil whilst maintaining all but the finest roots. This allows the detailed inspection of the suspected decay.​