Picus Tomograph Test on an Oak - New Park Brockenhurst
by Daniel Green
CHTS were tasked by the Forestry Commission and the National Park Service to check several of the largest Oaks at New Park Brockenhurst, for any internal decay that may lead to limb or complete failure.
Our surveyor and consultant visited the site with the Picus kit to check the above tree, a grand Oak that has a crown spread of over 30 metres.
The Picus Tomograph is essentially an Ultra Sound on the tree. By performing a knock test to nails set at appropriate heights and distances the Picus Tomograph records and sends the data straight to an on site computer to give instant results and show if there is any internal decay present at the height of the test.
This tree had nearly no decay present at the height of the tests and the only recommended works was a crown reduction to reduce the weight of each of this trees giant limbs.