Cryphonectria parasitica - Guernsey

Publication Date

Wed, 05 Oct 2022, 10:54

Last Updated

Oct. 5, 2022, 10:54 a.m.

Report Number

GBR-42/1

Country

United Kingdom

Report Status

Final

Hosts

As part of the general surveillance for quarantine pests a mature Sweet Chestnut tree was identified with characteristic bark cracking. Subsequent analysis by the Forestry Commission confirmed the presence of Cryphonectria parasitica.

Pest Status (ISPM 8 - 2021)

• Present: not widely distributed and under official control

Geographical Distribution

Limited distribution – first found in a public park in St Sampsons, Guernsey, UK

Summary

First finding of Cryphonectria parasitica (Sweet Chestnut Blight) on the Island of Guernsey

Danger

Cryphonectria parasitica is listed as a quarantine pest not known to occur in Guernsey. No clear pathway could be found for the infection of this mature tree. There are no commercial plantings of Sweet Chestnut in Guernsey, however Sweet Chestnut is a valued tree within the island landscape.

Contact for info

[email protected]

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