EPPO Platform
on PRAs

PRA report for Xanthomonas axonopodis pv. allii


Both the PRA and the PRA report are available. 

Expert working group 2008-09, review in 2009. This PRA supported the addition of the pest to the EPPO A1 List.

The probability of entry of Xanthomonas axonopodis pv. allii into the PRA area is considered moderate to high with a medium uncertainty. The likelihood of the pest to be associated with the pathway makes entry most likely. Even if specific data is not available, imports of seed and seedlings are presumed to be minor thus making the entry less likely. The pathways in order of risk are: Seeds of Allium spp. Seedlings of Allium spp. 

The probability of establishment of the pest is high in the Mediterranean area and other warmer EPPO countries. 

The most important economic impacts are crop yield losses (estimated between 10 to 50 % for onion bulbs). The endangered part of the PRA area is the Mediterranean part of the EPPO region and other warmer EPPO countries and to a lesser extent the temperate parts of the EPPO region.


  • Xanthomonas euvesicatoria pv. allii


  • Allium


Type File Size
Pest Risk Analysis Download 555,48kB
Pest Risk Analysis Download 283,82kB

PRA Area

  • EPPO
  • Albania
  • Algeria
  • Austria
  • Azerbaijan
  • Belarus
  • Belgium
  • Bosnia and Herzegovina
  • Bulgaria
  • Croatia
  • Cyprus
  • Czech Republic
  • Denmark
  • Estonia
  • Finland
  • France
  • Georgia
  • Germany
  • Greece
  • Guernsey
  • Hungary
  • Ireland
  • Israel
  • Italy
  • Jersey
  • Jordan
  • Kazakhstan
  • Kyrgyzstan
  • Latvia
  • Lithuania
  • Luxembourg
  • Malta
  • Moldova
  • Montenegro
  • Morocco
  • Netherlands
  • North Macedonia
  • Norway
  • Poland
  • Portugal
  • Romania
  • Russia
  • Serbia
  • Slovakia
  • Slovenia
  • Spain
  • Sweden
  • Switzerland
  • Tunisia
  • Türkiye
  • Ukraine
  • United Kingdom
  • Uzbekistan