Plant pests and disease guide

Guidance on the plant pests and diseases that are of a significant risk to Scotland.

Xylella fastidiosa is a bacterial pathogen transmitted by xylem feeding insects.

X. fastidiosa has a very broad host range including almond, peach, plum, apricot, grapevines, citrus, coffee and olive as well as oak, elm, Italian ryegrass, blackberry and sunflower.  

Given the wide range of hosts, and an evolving situation in Italy and France, and to improve preparedness within the EU, revised EU emergency measures have been introduced. These measures are under review as the situation in Europe has changed since these were introduced.

Xyella fastidiosa on the UK Plant Health Portal

Further information on Xyella fastidiosa including signs of disease, current outbreaks and contingency planning on the UK Plant Health Portal.

If you suspect this disease

Contact the Scottish Government’s Horticulture and Marketing Unit by email:


If you suspect that a plant pest or disease is present on your premises, please contact us for advice at

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