Pest categorisation of potato virus S (non‐EU isolates)

European Union, Non‐EU isolate, pest risk, plant health, plant pest, PVS, quarantine
First published in the EFSA Journal
9 January 2020
Adopted
26 September 2019
Type
Scientific Opinion

Abstract

Following a request from the EU Commission, the Panel on Plant Health has addressed the pest categorisation of non‐EU isolates of potato virus S (PVS). The information currently available on geographical distribution, biology, epidemiology, potential entry pathways, potential additional impact compared to the current situation in the EU, and availability of control measures of non‐EU isolates of PVS has been evaluated with regard to the criteria to qualify as potential Union quarantine pest. Because non‐EU isolates of PVS are absent from the EU, they do not meet one of the requirements to be regulated as an RNQP (presence in the EU); as a consequence, the Panel decided not to evaluate the other RNQP criteria for these isolates. Populations of PVS can be subdivided into two strains: the ordinary strain (PVS‐O) with a worldwide distribution (including the EU), and the Andean strain (PVS‐A) which is absent from the EU or considered to have at most a limited distribution in the EU. Two additional divergent isolates (PVS‐A/PVS‐O recombinants and PVS‐arracacha) have also been categorised. Non‐EU isolates of PVS‐A are expected to have an additional impact as compared to the PVS isolates currently present in the EU, and therefore meet all the criteria to qualify as potential Union quarantine pests; the magnitude of the additional impact is, however, unknown. Non‐EU isolates of PVS‐A/PVS‐O recombinants and of PVS‐arracacha also meet these criteria, with the exception of the criterion regarding the potential additional consequences in the EU territory for which the Panel was unable to conclude. Non‐EU PVS‐O isolates are not expected to have an additional impact in the EU as compared to EU isolates and therefore do not meet the corresponding criterion.

Panel on Plant Health
Contact
alpha [at] efsa.europa.eu
doi
10.2903/j.efsa.2020.5855
EFSA Journal 2020;18(1):5855
Question Number
On request from
European Commission