I am particularly concerned about one of our ash trees as there were two or three small branches with leaves that shrivelled and died earlier this year.
We had an arboriculturist do some work on both trees 12 months ago and he remarked that one of the trees was less healthy than the other, and had a bit of dieback, but he was referring to the 'ordnary' ash dieback which has been endemic in the UK for some time.
Now the leaves have fallen there is no way I can identify which branches were affected, and they're too high up for me to check for lesions, so there's nothing I can do until next year.
If only the government had taken this seriously earlier and publicised it I would have been able to have the suspect branches checked out this year, rather than next 