EPPO Global Database

EPPO Reporting Service no. 08 - 2020 Num. article: 2020/164

Update of the situation of Trioza erytreae in Spain

Trioza erytreae (Hemiptera: Triozidae – EPPO A2 List, one of the vectors of huanglongbing) was first detected in mainland Spain in 2014, in Galicia. The NPPO of Spain recently informed the EPPO Secretariat of the findings of the psyllid along the Atlantic coast in the neighbouring regions of Asturias, Cantabria and Pais Vasco, and updated the situation in Galicia. 

  • In Galicia, surveys are conducted. As a result, T. erytreae was detected in isolated trees from small orchards, private gardens and public parks. The regulated area has been extended. An updated map is available in the regional decree (https://www.xunta.gal/dog/Publicados/2020/20200508/AnuncioG0426-040520-0004_es.pdf). Official measures are applied.
  • In Cantabria, an individual reported suspicious symptoms on a lemon tree (Citrus limon) at the end of May 2020 in a private garden located in the locality of Mogro, municipality of Miengo. Samples were taken and T. erytreae was identified by the Regional Laboratory. 
  • In Asturias, individuals reported suspicious symptoms at the end of June 2020 in 7 private gardens and 2 orchards for personal consumption located in the localities of Somió and Jove, municipality of Gijón, and in the locality of Quintes, municipality of Villaviciosa. In July, 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. In August, T. erytreae 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. Samples were taken from lemon trees (Citrus limon) and orange trees (Citrus sinensis) and T. erytreae was identified by the Regional Laboratory. 
  • In Pais Vasco, T. erytreae was detected on 1 lemon tree (Citrus limon) in a private garden located in the municipality of Donostia/San Sebastián, in the province of Guipuzcoa in August 2020. This is the first detection in this Autonomous Region. Samples were taken and T. erytreae was identified by the Regional Laboratory. 

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 the infested zone)

- 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, only in some parts of the Member State concerned.


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