The accuracy of Arbotom

I’ve been using my Arbotom tree tomograph instrument for a year now and am very impressed with its accuracy.


The first set of images below show a Lime (Tilia cordata) infected with the (primarily root and stem) decay fungus Kretschmaria deusta (Stubbdyna in Swedish).

In summer 2017 the crown looked healthy…

Lime tree looking healthy summer 2017

… however,  a small bark discolouration on the butt raised my suspicions.

A closer visual assessment revealed those small black crusty structures typical of the mature fruit bodies of Kretschmaria deusta.

Fruit bodies of Kretschmaria deusta on the butt

Of course the extent of any decay was unknown. The tomograph undertaken last summer indicated considerable decay:

Tomograph of the stem base

The cross section post felling helps to show just how accurate the Arbotom is when measuring the structural integrity of stem sections.

Cross section of the felled tree

Horse Chestnut

On the same site, a Horse Chestnut (Aesculus hipposcastanum) also saw healthy in the crown.

Horse Chestnut, also looking healthy.

However, it also had a similar bark discolouration on the butt. Again I found those small black crusty structures typical of the mature fruit bodies of Kretschmaria deusta.

But with small black crusty structures on the butt.

And again the Arbotom’s tomograph suggested extensive decay:

Tomograph indicates decay.

… and the cross-section of the felled stem confirms the accuracy of the Arbotom.

Cross section of the felled tree confirms the extent of the decay.


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