EU-EFSA: Xylella host plant database updated

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EU-EFSA: Xylella host plant database updated

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EFSA has completed two pieces of work that substantially expand knowledge and understanding of Xylella fastidiosa, the plant pathogen that is attacking fruit trees and other plants in parts of Europe.

The agency has published the latest update of its database of plants that act as hosts for X. fastidiosa. The updated list includes 563 plant species identified through a new literature search and from notifications to the EU’s plant health interception service EUROPHYT. For 312 of the species, infection has been identified by at least two detection methods.

The list now covers both species of the pathogen – X. fastidiosa and X. taiwanensis – and includes information on plant varieties that are resistant to, or tolerant of, Xylella.

The database provides essential evidence to scientists and risk assessors and supports risk managers in carrying out surveillance and other phytosanitary measures, such as inspections of plants for planting.

EFSA’s Panel on Plant Health has also updated its pest categorisation of X. fastidiosa (, which was part of its risk assessment of the pathogen published in 2015 (

The update includes the latest information on the biology and distribution of X. fastidiosa inside and outside the EU, as well on the presence and distribution of insect vectors in Europe. It also includes detailed information about the European outbreaks and the plant species affected.

A new full risk assessment of X. fastidiosa is scheduled for completion in early 2019.

Update of the Xylella spp. host plant database:
Updated Xylella fastidiosa pest categorisation:

Source: Press-release by the European Food-Safety Authority (EFSA), September 10, 2018.

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