having seen first hand the damage and potential threat therefore to our native trees caused by Phytophora ramorum and Phytophora kernovii I am convinced that the need to protect our semi natural woodlands and all the new plantings carried out with indigneous species have to be protected firstly by way of controlling new species into the UK landscape. If not we may be faced with a double calamity - climate change as well as a pathogen wiping out the natives. We are currently working on an elm project, where in order to produce resistant species we have to look to foreign varieties; to do it right takes time and patience and far too often we see a new variety of ornamental plant rushed to the garden centre shelves without consideration. A classic recent arrival being the invasive Leycesteria formosa, which is already starting to become a problem.
The FC and Defra to be fair have been hot on this subject and there has been levelled criticism towards elements of the Horticultural and Landscape Architecture industry in response - again this criticism falls flat when set against a disjointed industry and as with Swine Flu the results are that mitigation is the only weapon.