EPPO Platform
on PRAs

Express PRA for Schizaphis piricola


The aphid Schizaphis piricola is endemic to East Asia. In 2009, it was found for the first time in Spain, the first detection in Germany was in 2020. So far, the aphid is listed neither in the Annexes of Regulation (EU) 2019/2072 nor by EPPO. Schizaphis piricola is dioecious, that means it alternates hosts. In winter it infests Pyrus sp. (primary host; sexual reproduction) and in summer, Cyperaceae (secondary host). It is assumed that S. piricola can establish in Germany, at least in warmer regions. The establishment in southern Europe already happened. The damage potential for its host plants is comparable to a common aphid infestation and presumably, it does not transmit viruses. Thus, S. piricola poses a low phytosanitary risk to Germany. In the southern EU-Member States, the phytosanitary risk is low to medium because of the presumably more favourable climatic conditions. Based on this risk analysis, it is assumed that the pest can establish in other southern Member States but no significant damage is expected. It is established in Spain but it is not known whether special measures are taken there. The aphid can spread effectively by anemochory. A natural expansion of the distribution area is likely. Based on this risk analysis, it is assumed that S. piricola can establish in Germany and the EU, partly this establishment did already happen. According to current knowledge, no significant damage by S. piricola is expected. Thus, Schizaphis piricola is not classified as a potential quarantine pest and Article 29 of the Regulation (EU) 2016/2031 does not apply. Nevertheless, it is recommended to take control measures in order to prevent significant damage and further spread


  • Schizaphis piricola


Type File Size
Pest Risk Analysis Download 321,32kB

PRA Area

  • Germany