Thaumetopoea processionea on Jersey

Fecha de publicación

Mié, 05 Oct 2022, 11:08

Última actualización

Oct. 5, 2022, 11:08 a.m.

Número del informe

GBR-43/1

País

United Kingdom

Estado del informe

Final

Hospederos

Quercus spp. (Oak)

Distribución geográfica

Outbreak extent still being investigated, currently limited to a pocket in the southern central part of the island and two additional single nest sites.

Resumen

Notification of an outbreak of Thaumetopoea processionea on the Crown Dependency of Jersey. This outbreak is initially thought to be the result of windborne spread, but further investigations are necessary. Eradication measures are currently being applied, including the removal and destruction of identified nests, public engagement and outbreak extent & wider environmental surveys.

Peligro

Repeated defoliation in spring increases tree susceptibility to drought and secondary pests and reduces earlywood width. Moreover, the infestation by T. processionea has been hypothesized to be associated with oak decline which has repeatedly emerged during the past centuries and particularly in the most recent decades. In addition to the effect on forest health, outbreaks of T. processionea have an even greater impact on health due to the urticating setae the larvae produce after the 3rd larval stage that cause ocular and respiratory problems in animals and human health.

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