Resistance Drilling

Resistance drilling is a valuable technique used to assess the stability of trees, especially in the context of urban and arboricultural management. This method involves drilling a small hole into the tree trunk and measuring the resistance encountered during the drilling process. The level of resistance encountered provides crucial insights into the structural integrity of the tree. Healthy, sound wood will offer relatively high resistance, while decayed or weakened areas within the tree will exhibit lower resistance. By carefully analysing the resistance data obtained from various points on the tree, arborists and researchers can map out the extent of internal decay, cavities, or other structural issues, helping them make informed decisions about tree health and safety. Resistance drilling is a gently-destructive and reliable method for the local assessment of the intact wall of stems and branches, making it a valuable choice for tree care consultants. It helps to determine whether a tree requires pruning, support systems, or even removal to ensure the safety of surrounding areas.