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‘Trioza erytreae’ in Galicia and the neighbouring regions of Asturias, Cantabria, and País Vasco

By hlb-editor | October 8, 2020 | Event and News, News | 0 comments

Update of 'Trioza erytreae' in Spain


Trioza erytreae, one of the vectors of Huanglongbing, was first detected in mainland Spain in 2014, in Galicia. The NPPO of Spain recently informed about the findings of the psyllid along the Atlantic coast in the neighbouring regions of Asturias, Cantabria, and País Vasco, and updated the situation in Galicia. An updated map about the situation is available in the regional decree.

Autonomous Regions with Trioza erytreae

In Cantabria was reported a suspicious symptom on a lemon tree (Citrus limon) at the end of May 2020 in a private garden located in the locality of Mogro, Miengo. Scientists from the Regional Laboratory took samples on the affected tree and agreed upon the identification of T. erytrea in the zone.

In Asturias individuals reported suspicious symptoms in 7 private gardens and 2 orchards in the localities of Somió and Jove, Gijón, and in the locality of Quintes, Villaviciosa at the end of June 2020.

As the summer went on, the psyllid was further reported from 8 private gardens, 1 public garden and 1 small orchard located in the municipalities of Cudillero, Peñamellera Baja, Carreño and Navia. And later, it was detected in one lemon tree in a garden centre in the municipality of Avilés, as well as in 3 private gardens in the municipalities of Avilés, Gozón and Valdés.

In País Vasco, T. erytreae was detected on one lemon tree in a private garden located in the municipality of Donostia/San Sebastián, in the province of Gipuzkoa in August 2020. This is the first detection in this Autonomous Region.

Eradication measures are being applied according to article 5 of Royal Decree 23/2016 (amended by Royal Decree 491/2020). They include:

  • collection of information on the presence of host plants in the affected areas.
  • establishment of regulated areas (infested zone and a buffer zone of 3 km radius around it).
  • surveillance in nurseries and garden centres located within the regulated areas.
  • treatment of infested plants.

The pest status of Trioza erytreae in Spain is officially declared as: Present, under eradication and only in some parts of the Member State concerned.



NPPO of Spain (2020-05, 2020-06, 2020-07, 2020-08).

EPPO Reporting Service


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