Silver leaf disease (Stereum purpureum)
Fruiting bodies: Frequently only noticeable once the
tree has died completely.
Wood decomposition: white rot
Effect: The fungi enters the tree through wounds. The
violet colored fruiting bodies form first on the dead wood. Sure identification
characteristic is the metallic lead colored discoloration on the leaves.
Infected trees die off. The fungi spreads through spores and across
the ground. Therefore, a disinfection of the ground would be recommended
before planting again.
Recommendation: Situation should be evaluated.