Viburnum Tinus dieback spred to oak?

[njc110381]

Guys I have a real problem with a Viburnum on a jod I'm doing. I'm laying a large patio around it but it's showing signs of dying. Not from anything I've done because I've not got that far yet - it's the thing where the leaves seem to have little cobwebs in them and turn blotchy brown. Is there a cure for it? Everything I've seen with it has died fairly quickly once it's established. As a side note the neighbour asked us to look at sn oak that someone had done a reduction on and the new shoots are showing the same symptoms. I'm no expert - could anyone make an educated guess at what it is so I can look it up?

 

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