2013-12-11  facebook twitter rss

Ash Disease Found in Derbyshire

A further case of the tree disease Chalara, also known as ash dieback, has been confirmed in a woodland on the Derbyshire border, near Swadlincote.

Derbyshire is the 16th county in England where Chalara has been discovered in the wider environment (forests and woodland); the other counties are Dorset, Somerset, Norfolk, Suffolk, Essex, Cambridgeshire, Kent, Surrey, West Sussex, East Sussex, Devon, Lincolnshire, Yorkshire, Leicestershire and Northumberland.



The disease has now been confirmed in 615 sites including 244 locations in the wider environment. Chalara was discovered in England’s woodland in Autumn 2012 as a result of the intensive survey carried out of sites across the UK where ash trees are known to be present.

Martin Ward, Chief Plant Health Officer said:
We’re learning about Chalara all the time and all new scientific evidence feeds into our understanding. The better informed we are, the more effective we can be in our work to reduce the impact of this disease and we will be investigating this new case closely.

As part of the government’s plan to manage Chalara, published in March, work is ongoing to identify genetic resistance in ash trees. Saplings have been planted in sites across East Anglia to expose them to Chalara and they will be monitored to see which ones show signs of resisting the disease. This work complements research being undertaken in the laboratory to isolate a Chalara-resistant genome.

In June, Defra hosted a summit to discuss how we collectively respond to the recommendations made in the report from the independent Tree Health and Plant Biosecurity Expert Task Force, published in May. At the summit the initial risk register was presented of 70 pests and diseases which could potentially affect plants and trees in this country; good progress is being made to catalogue the threat posed by some 700 pests and diseases present across the world and is expected to be published in January.

The ash tree is a native British species of tree, providing around five percent of all woodland cover. Chalara is a serious disease that has affected a high proportion of ash trees in northern Europe and which was confirmed as present in nursery stock in the UK in early 2012.

Gov UK

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