Tree Managers : Public Discussion

Phil

Use of the qtra method is becoming increasingly accepted by the arboricultural industry and by tree managers. VTA is not a risk assessment method. VTA is about assessing the mechanical integrity of trees but does not consider the potential for harm or indeed the magnitude of harm that may arise from tree failure.

With regard to your second question, qtra is certainly not wishy-washy. Qtra enables the person assessing the risks from tree failure to provide a probabilistic estimate of harm from tree failure and the person charged with managing the tree/s can make a well informed judgement based on this information.

I suggest that you might get a view from the wider arboricultural community by posting your questions on the UK Tree Care Mailing List at [lists.tree-care.info].

Mike