Noticed this in the Daily Mail today about importing diseased ash trees from the continent. A few excerpts from the article:
All ash trees are threatened by a fungus called Chalara fraxinea. It is marching through the continent, and the effect has been devastating. First reported in Poland in 1982, it has already wiped out 90 per cent of Denmarks ash trees.
Now, the fungus has crossed the Channel. It struck for the first time in February, when a shipment of diseased ashes from Holland were found in a Buckinghamshire nursery.
Then, in June, it killed another imported ash tree in Leicestershire. Nurseries across the country — and any other owners of ash trees — have been asked to check for giveaway blackened leaves on recently-bought trees.
Should the disease take root here, the loss to the British countryside would be incalculable. Some fear it could take an even greater toll on our trees than Dutch elm disease did in the late Sixties and Seventies.