Chalara dieback of ash is a serious disease of ash trees caused by a fungus called Chalara fraxinea (C. fraxinea). The disease causes leaf loss and crown dieback in affected trees, and it can lead to tree death. This fungus is being treated as a quarantine pest under national emergency measures, and it is important that suspected cases of the disease are reported. Meanwhile, it is best not to move Ash leaves/stems and if possible burn on site. The main risk of infection is from the leaves, but only between June and October.
Please do not bring ash leaves to the Bisley Community Composting site.
Tree Council launches national plan to tackle threat to millions of Britain’s trees facing ash dieback disease
Forestry Commission advice on The management of individual ash trees affected by ash dieback (PDF)