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Ash dieback is a disease of ash trees caused by a fungus called Chalara fraxinea. The disease causes leaf loss and crown dieback in affected trees and it may lead to tree death. This Pest Alert provides information on distribution, symptoms, how the disease spreads and what you can do to help, as well as some brief information on other disorders of ash trees.


PDF, 0.62 MB

Publication type
Plant Health
Publication owner
Forestry Commission