EPPO Platform
on PRAs

EPPO Report of a Pest Risk Analysis for Pochazia shantungensis and Pochazia chinensis

Description

The aim of this PRA report is to assess the status of Pochazia shantungensis and P. chinensis as candidates for listing on the EPPO A1 and A2 lists of pests recommended for regulation as quarantine pests. An EFSA pest categorisation for Pochazia shantungensis was prepared in 2023 (EFSA PLH Panel, 2023). The Panel on Phytosanitary Measures considered that the EFSA pest categorisation, along with a few additional publications, would be sufficient to consider inclusion of the pest on the EPPO A1 or A2 List. Originally from China, this pest has spread to Republic of Korea, Japan; and in the EPPO Region to Bulgaria, France, Hungary, Italy, the Netherlands, the Russian Federation and Türkiye. It is polyphagous, feeding on over 200 plant species, including economically important crops like apples, citrus, and ornamental plants. Pochazia shantungensis damages plants through egg-laying and feeding by larvae and adults, reducing yield and quality. It was concluded by EFSA that the pest meets criteria assessed by EFSA to be considered as a potential European Union quarantine pest (EFSA PLH Panel, 2023). This PRA report has been prepared to cover not only P. shantungensis but also P. chinensis, as a recent study (Lee et al., 2024) has revealed the presence of these two closely related species in Asia. A pest risk assessment for tree species from the Republic of Korea (USDA, 2020), an express pest risk analysis for P. shantungensis (JKI, 2021) and a quick scan for P. shantungensis (NVWA, 2023) were also consulted. Later in the process of preparing this PRA report, a comprehensive DEFRA PRA was made available (DEFRA PRA, 2025) and used to update the PRA report. More recent publications have been used to make it more representative to the whole EPPO region (see References). The probabilities of entry, establishment, spread, and potential impact have been established by the Panel on Phytosanitary Measures for the EPPO region on a five-level scale (very low, low, moderate, high, very high) with a three-level scale of uncertainty (low, moderate, high). Given present situation in the EPPO region i.e. limited economic impact reported so far, geographic distribution which may be underestimated, absence of control measures implemented in many EPPO countries, together with the rapidity of spread, and difficulty to control in public areas due to its polyphagous habit, the pest was not recommended for listing on the EPPO A2 List.

Organisms

  • Pochazia chinensis
  • Pochazia shantungensis

Files

Type File Size
Pest Risk Analysis Download 928,77kB

PRA Area

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