SoT Shorts: Trees, Tree Health, and Champion Trees
Trees, Tree Health and Champion Trees: Full Presentation
Dr. Bruce Allison discusses the human connection to trees
Interview with Arborist Dr Bruce Allison
If Trees Could Talk – Ep. 760

X-Ray CT scan of Bristlecone Pine

The Wisdom of Ancient Trees
Device uses sound waves to check trees for decay

Tree Check Sonic Wave Tree Decay Detector