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Diseased trees

Ash dieback disease

Ash dieback disease, Chalara fraxinea, is a serious threat to the health of Ash trees in the UK. For more information see Chalara dieback of Ash, on the Forestry Commission's website.

Report dangerous tree pests and diseases

Report Ash dieback, or any other tree pests or diseases, online at tree alert, on the Forestry Commission's website. It is important that suspected cases of the disease are reported immediately; it results in leaf loss and crown dieback and can result in tree death.

For further information:

In England contact:

In Scotland contact:

In Wales contact