Sorbus Aucuparia branch die back?

[wrekin tree care]

Hi All

 

I visted a property today to dpo a quote and there was two rowan trees about 15 years old. The lower 2 braches on both tree has died and were soft to touch. I looked all over the tree and all i could find was some small whitish sposts on one of the dead branches. i ahve looked in diagnosis of ill health in trees and i was thinking silver leaf maybe. as the owner did say the leaves went funny?

 

I have just started up my tree care business after 10 years in the game i have RFS cert arb and in my last year of my Fdsc in arb., but sometimes i forget a lot how do you go about inpecting trees and finding the disease,s etcc.

 

many thanks

adam

[Fungus]

two rowan trees about 15 years old. The lower 2 braches on both tree has died and were soft to touch. I looked all over the tree and all i could find was some small whitish spots on one of the dead branches. i have looked in diagnosis of ill health in trees and i was thinking silver leaf maybe. as the owner did say the leaves went funny?

 

Adam,

Silver leaf disease is caused by Chondrostereum purpureum, it can occur without FB's of the fungus being present (yet). Two other white rot causing bracket fungi often appear on Sorbus, Daedaleopsis confragosa and Trametes gibbosa. And whitish to pinkish spots on a dead branch can be anamorphs of a Nectria species or another Pyrenomycete.