Unexpected tomography result

[Steve Bullman]

Carried out a picus Test today on a 90ft poplar.  The bottom few feet of the tree was infested with old wood wasp bore holes, and being a poplar if that age we presumed it would have a degree of decay in there.

sound as a pound as it turned out

 

 

 

[David Humphries]

Probably clear wing hornet moth exit holes.

Sesia apiformis

 

I've seen decay associated with these invasive holes (probably Ganoderma white type rot) so a bit surprised that the tomograph looks clean.

 

can you go cut it down for us so we can compare 

 

 

 

Does this Picus set up have more than 16 sensors?

[Steve Bullman]

12 sensors it has.  That tree was measured at 14 points using 7 sensors.

5 minutes ago, David Humphries said:

can you go cut it down for us so we can compare 

I don't do that anymore 

[Mark Bolam]

The black area is a cavity.

Do you know anyone with an 880?