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Picture library: 2001272

Complex bark disease on beech. Log from felled beech tree showing the white waxy formations of 'wool' produced by the scale insect, Cryptococcus fagi.It is after infestation by colonies of this sap-sucking insect, that the fungus Nectria sp thought to enter and kill the beech bark.Green and black lichen growths can also be seen.

Reference: 2001272

Complex bark disease on beech. Log from felled beech tree showing the white waxy formations of 'wool' produced by the scale insect, Cryptococcus fagi.It is after infestation by colonies of this sap-sucking insect, that the fungus Nectria sp thought to enter and kill the beech bark.Green and black lichen growths can also be seen.
Date Taken: 15th August 1969

Photographer: Thelma Evans
Copyright: Crown Copyright
Credit line: Forestry Commission / Thelma Evans

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