Ash Dieback Disease

Ash Dieback Disease (ADD), also known as Chalara Dieback of Ash, is a fungal disease that affects all species of ash tree (Fraxinus).

Ash Dieback Disease

It is the most significant tree disease to affect the UK since Dutch Elm Disease. Ash TreeIn Britain, the disease was first officially recorded in south-east England in 2012 from where it has spread west across the UK. It is now affecting most parts of Scotland.

The fungus (Hymenoscyphus fraxineus) attaches itself to the leaves of ash trees and spreads through the branches where it blocks the water transport systems, causing leaf loss, lesions in the wood and on the bark. This leads to the gradual dieback of the tree crown.  Trees become brittle, with branches breaking off or the whole tree failing. If they are not managed appropriately, trees are at risk of collapsing, presenting an immediate danger to the surrounding area.

There is no known cure or practical way to prevent the disease from spreading. It is likely that we are likely to lose at least 50-75% of Scotland's 11 million Ash trees over the next 20 years.


Legal Considerations

Please note that the legal system and regulatory authorities in Scotland are different to those in England and Wales.


Further information, useful links and websites

 

 

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