SILVER LEAF
(Chondrostereum purpureum)

DESCRIPTION
Silver leaf is caused by the fungus Chondrostereum purpureum which enters trees through wounds - often caused by bad pruning. 

The fungus grows within the tree producing toxins in the sap. These pass to the leaves causing them to turn silver and finally brown. The infected branches die back with the fungus producing mushroom like growths on the dead wood.

Infected wood has a brown or purple stain within its flesh. 

TREATMENT
Cut away all infected branches (the brown / purple stain in the branch flesh will indicate where the wood is infected) and burn them immediately. Cut away six inches past infected wood. Do this during the summer to minimise the risk of re-infection.

Sterilise the pruning shears after use and seal and large cuts on the branches with pruning sealant (available from most garden centres). Feed and water the tree to give it strength.

If the main trunk of the tree is clearly infected with fungus (mushroom like growth), all hope is gone and it is best to destroy and burn the whole tree.

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