First report of Cryphonectria parasitica in Jersey
The NPPO of the United Kingdom recently informed the EPPO Secretariat of the first record* of Cryphonectria parasitica (EPPO A2 List) in Jersey. Two isolated outbreaks have been detected on the island. A number of symptomatic sweet chestnut (Castanea sativa) trees in the wider environment tested positive. The origin of this outbreak remains unknown. Official control measures have been taken and include surveys to delimit the extent of the disease.
The pest status of Cryphonectria parasitica in Jersey is officially declared as: Present: not widely distributed and under official control.
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* The detection of C. parasitica in Jersey had also been reported in a recent paper from Romon‐Ochoa et al. (2022) with further details on the situation of the disease in Great Britain (EPPO RS 2022/119).
Sources
NPPO of the United Kingdom (2022-10).
Romon‐Ochoa P, Kranjec Orlović J, Gorton C, Lewis A, van der Linde S, Pérez‐Sierra A (2022) New detections of chestnut blight in Great Britain during 2019–2020 reveal high Cryphonectria parasitica diversity and limited spread of the disease. Plant Pathology 71(4), 793-804.