Eradication of Thaumetopoea processionea in Ireland
The NPPO of Ireland recently informed the EPPO Secretariat that the oak processionary moth Thaumetopoea processionea (Lepidoptera: Notodontidae – EU Annexes) has been eradicated from their territory. T. processionea is a protected zone quarantine pest in Ireland. In June 2023, four nests of T. processionea had been found on four adjacent Quercus robur trees in the municipality of Castleknock (EPPO RS 2023/135). The nests were reported by a member of the public in a green square in a housing development on trees that had been planted in 2019. Official measures were taken (destruction of the infested trees and nests). Based on a recent survey, the NPPO considers that T. processionea has been eradicated.
The pest status of Thaumetopoea processionea in Ireland is officially declared as: Absent, pest eradicated.
Sources
NPPO of Ireland (2025-06).