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David Humphries

Chalara fraxinea - Generic thread

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I think the main impact to landscape will be loss of hegderow trees (ash the most common one locally) as woodland will regenerate other species replacing the ash, but the hegderow trees won't come back as any new trees are flailed.


Thats want happened after dutch elm, massive reduction in number of hegderow trees, countryside just looks more bleak since with miles of hegdes with fewer trees along them.



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Like Stere says, possibly the most grievous loss will be in the hedgerows. The implications have so far been explored in a woodland context, whereas the impact of open grown ash in a non woodland context, for both landscape and ecology, will certainly be difficult to study and will be markedly felt by everyone.

The point about flailing is also particularly relevant, as it reduces the likelihood of the hedgerow tree population being replaced by other species in the medium term, or resistant ash in the long term.

Perhaps when the dieback takes the ashes from our landacape, there will be sufficient motivation to nurture hedgerow trees and encourage some kind of restocking.

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I don't know, a huge percentage of our local large street trees are Ash. Lots of roads will end up looking like Sheffield, with loads of heavy standards replacing 60-70 ft mature Ash.


it will make a huge difference in our urban environment

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Just now, Chrissy said:

can't quite work out where they get the 15 billion figure from

Several years ago our LA were estimating a cost of £10 million just for highway trees and LA trees within falling distance of the road. I'm pretty sure that they've revised that figure upwards due to under-estimating the percentage of ash in the population.



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