Trees photo gallery |  | Autumn glory - but are London's trees dying? | |
Tree threatBleeding Canker is threatening London's Horse Chestnut trees. Horse Chestnut trees are an iconic part of the capital's landscape and give us our much loved traditional game of conkers. But disease is now threatening the trees' survival. The drought in Summer 2006 has left the trees weak and susceptible to attack by the leaf minor moth. Worse still, they have become prone to bleeding canker. The moth is ravaging the horse chestnut leaves, while the canker is causing pussy sap lesions on their trunks. Inside Out London talks with tree experts Andy Tipping, Head of the London Tree Officers' Association and Todd Longstaffe-Gowan, Gardens Advisor to Historic Royal Palaces, about the history of this majestic tree and the impact these diseases will have on London. Under threatAndy Tipping is responsible for recording the health of many of the Horse Chestnut trees and does so by giving the tree, a sort of 'pregnancy test'. A fragment of the lesion is mixed with alcohol and then a small amount is tipped into a testing device which displays the result. While the Horse Chestnut is not native to Britain, it has become almost naturalised. "They are the largest flowering trees, and are evocative of the English countryside," says Todd. Crushing Conker newsConker fights, now banned by several schools due to concerns over health and safety, are also under threat if these beautiful trees are eaten away by disease.  | | Conker crisis - smaller and fewer conkers this year |
Already their large green leaves are falling early, and conker aficionados are reporting fewer and smaller conkers this year. One conker fan noted that they "are coming down earlier than they should, and the conkers have been quite small". For many old and young conker fighters these diseases are troubling. "London without its conker trees would be a sad place," said one contestant at Camden's Conker Championship. Watch Inside Out London on October 23 to find out more about how these diseases are affecting London's Horse Chestnuts. Links relating to this story:The BBC is not responsible for the content of external websites |