LONDON (Reuters) - Hundreds of staff from Britain's environmental agencies will survey the state of the country's ash trees this weekend in an attempt to control the spread of a deadly fungal disease that threatens to drive the species to extinction in the UK, a government crisis meeting decided on Friday.
The disease, which causes leaf loss and crown dieback, has already killed up to 90 percent of ash trees in parts of Denmark and has now been found in the wild in Britain.
