It's been dubbed the foot and mouth of the tree world. Phytophthora ramorum or sudden oak death as its commonly known is ravaging forests across the UK resulting in millions of trees being cut down. The disease has spread from the South West to Wales, the peaks and even as far north as the Isle of Mull. But experts say they are finding fewer and fewer new outbreaks. Today on Open Country, Helen Mark visits The South West, the region that's hardest hit, to find out what impact this disease is continuing to have on the countryside and whether there are signs that we are finally getting on top of it.

Presenter: Helen Mark.