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The Birchanger Woods Trust
Chalara dieback of ash (Chalara fraxinea)
Chalara dieback of ash is a serious disease of ash trees caused by a fungus called Chalara fraxinea (C. fraxinea), including its sexual stage, Hymenoscyphus pseudoalbidus (H. pseudoalbidus). The disease causes leaf loss and crown dieback in affected trees, and usually leads to tree death.
Ash trees all over the country are at risk of the above disease.  For the latest information use the link below:
Ash Cherry Elm Hornbeam Field Maples Hazel Oak Scott's Pine Silver Birch Spanish Sweet Chestnut Sycamore Yew