Sean Freeman

I think there will be developments along similar lines in relation to other fungal pathogens, both naturally occuring resistant trees and hybridized trees can form the starting point for a resistant seed bank from which to rebuild specific tree populations.
Sadly however as I'm sure you're well aware the cumulative pressures that our altered soil environments and urbanised ecosystems place on all trees pushes them further into stress and makes them more vulnerable to all kinds of negative health factors fungal and insect. Gaining general recognition for the desperate need to rectify the impoverished soil environments in which our urban forest grows, and persuading land owners and managers (public and private) of the sense in adopting very simple and cheap measures to begin to redress the imbalance will porbaly achieve much more.

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Sean

Trees are poems that earth writes upon the sky,
We fell them down and turn them into paper,
That we may record our emptiness.
- Kahlil Gibran