Update of the Xylella spp. host plant database

Following a request from the European Commission, in 2018 EFSA released a renovated database of host plant species of <em>Xylella</em> spp. (including both species <em>X. fastidiosa</em> and <em>X. taiwanensis</em>) together with a scientific report (EFSA, 2018). EFSA was tasked to maintain and update this database periodically. In May 2021, EFSA released the fourth update of the <em>Xylella</em> spp. host plant database (VERSION 4) with information retrieved from literature search up to December 2020, Europhyt outbreak notifications up to 18 March 2021, and communications of research groups and national authorities (EFSA, 2021). The protocol applied for the extensive literature review, data collection and reporting, as well as results and lists of host plants are described in detail in the related scientific report (EFSA, 2021). The overall number of <em>Xylella</em> spp. host plants determined with at least two different detection methods or positive with one method (between: sequencing, pure culture isolation) reaches now 385 plant species, 179 genera and 67 families (category A – see section 2.4.2 of EFSA (2021)). Such numbers rise to 638 plant species, 289 genera and 87 families if considered regardless of the detection method applied (category E, see section 2.4.2 of EFSA (2021). The Excel files here attached represent the VERSION 4 of the <em>Xylella</em> spp. host plants database. For a detailed description of the information included in the database, please consult the related scientific report (EFSA, 2021). The Excel file “<em>Xylella</em> spp. host plants database – VERSION 4” contains several sheets: the LEGENDA (with extensive description of each table), the full detailed raw data of the <em>Xylella</em> spp. host plant database (sheet “observation”) and several examples of data extraction. Additional Excel files contain the lists of host plant species of <em>X. fastidiosa</em> (subsp. unknown (i.e. not reported), <em>fastidiosa</em>, <em>multiplex</em>, <em>pauca</em>, <em>morus</em>, <em>sandyi</em>, <em>tashke</em>, <em>fastidiosa/sandyi</em>) and <em>X. taiwanensis</em> infected naturally, artificially and in not specified conditions, and according to different categories (A,B,C,D,E – see section 2.4.2 of EFSA (2021)). The Excel file “new_host_plant_species_v4” contain the list of new host plant species added to the database in this fourth update. Question number: EFSA-Q-2017-00221<br> Correspondence: [e-mail] <em>Bibliography:</em> EFSA (European Food Safety Authority), 2018. Scientific report on the update of the <em>Xylella</em> spp. host plant database. EFSA Journal 2018;16(9):5408, 87 pp. https://doi.org/10.2903/j.efsa.2018.5408 EFSA (European Food Safety Authority), Delbianco A, Gibin D, Pasinato L and Morelli M, 2021. Scientific report on the update of the <em>Xylella </em>spp. host plant database – systematic literature search up to 31 December 2020. EFSA Journal 2021;19(6):6674, 70 pp. https://doi.org/10.2903/j.efsa.2021.6674