Arboricultural Review<Click here to open document and see pictures.
Here is an example of a tree and the feedback the arborist gave. CLICK the above link to see the entire report.
The second tree also has Phytophthora. The problems with this oak are compounded by poorly formed trunk flares and soil deposition over the compression plate. The trunk flares are a genetic defect that can lead to structural failure over time. During the construction of the main drive it seems that soil shifted down the hill covering the tree’s roots.