Urban & Rural Tree
Management

Hazard Tree Assessment

ACS Consulting (London) will perform tree hazard assessments using the latest technology.

Fungal fruit bodies on this Norway Maple are positioned in a way to indicate that significant decay has developed within the trunk.

Additionally, the host species and the type of fungus (Ganoderma pfeifferi) indicate the likelihood of a hazard.

A Tomograph can assist us with assessing the extent of internal wood degradation.

The Tomograph, which uses ultra sonic impulse records to analyse the structure of wood fibres inside tree parts (trunk, branches and buttress roots), provides a quick reference to the extent of the differences of  wood make up – these results must be evaluated expertly and following experience with using the Tomograph.

Resistogram readings, under scrutiny and an understanding of wood decay processes and fungal pathogens, can reveal the quality of internal wood structure and nature of decay in trees. The peaks indicate high resistance and the troughs the opposite – but this is relative to the test tree and caution must be applied when selecting the test point.

Example Resistogram

Services

• Tree Management
• Litigation
• Planning & Development
• Woodland Management
• Insurance Assessment
• Maintenance Specifications
• Site Supervision
• Hazard Tree Assessment