Ash tree affected by ash dieback
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Ash trees import ban 'may be too late'

29 October 2012 Last updated at 14:25 GMT

Some experts believe the ban on importing ash trees may be too late to control a fungus which has killed thousands of trees across Europe.

The 10 confirmed sites of ash dieback are confined to an area from north Norfolk to just south of Bury St Edmunds in Suffolk, but there are seven more suspected sites in East Anglia and five in Kent.