Not all tree defects are visible from the outside. Internal decay, cavities, and structural weakness can develop out of sight—posing serious risks if left undetected. That’s where our decay detection inspections come in.
At New Leaf Environmental, we use advanced tools to assess the internal condition of trees when decay is suspected. Our go-to device is the RESI F500SE—a high-precision decay detection drill that provides detailed, reliable data without causing significant harm to the tree.
The RESI drill works by inserting a fine probe into the tree trunk. As it drills, it measures resistance in the wood and creates a graph that shows variations in density—helping us identify decay, hollow sections, and areas with reduced structural strength. This allows us to determine residual wall thickness and assess whether the tree remains safe or requires action.
Whether you’re managing trees on a high-risk site, public land, or a private estate, decay detection inspections offer the peace of mind that comes from evidence-based decision-making.
Accurate Assessment
Accurate assessment of internal decay and hollowness
Minimally Invasive
Minimally invasive testing that preserves tree health
Graphical Data
Graphical data that supports clear, informed decisions
Informed Tree Care
Helps determine whether to retain, reduce, or remove a tree