Quick assessments of the potential for establishment in Sweden for the provisional quarantine pests Chloridea virescens, Homona magnanima, Resseliella citrifrugis, and Spodoptera ornithogalli

Following Article 30 of Regulation (EU) 2016/2031, plant pests provisionally qualifying as Union quarantine pests are subjected to specific measures. These pests are listed in Commission Implementing Regulation (EU) 2022/1941. Similarly to other Union quarantine pests, surveys for the Article 30 pests shall be carried out on a regular basis by the Member States according to the plant health regulation ((EU) 2016/2031). However, if it can be ‘unequivocally concluded’ that ecoclimatic conditions or the absence of hosts prevents the establishment or spread of the pest, surveys are not required.Previously, quick assessments of the potential for establishment in Sweden were done for 82 quarantine pests for which there had been uncertainty about whether the ecoclimatic conditions and host availability allowed the establishment (Björklund and Boberg 2021; 2023). SLU Risk Assessment of Plant Pests was requested by the Swedish Board of Agriculture to apply the same methodology for conducting quick assessments for the following provisional quarantine pests: Chloridea virescens [HELIVI], Homona magnanima [HOMOMA], Resseliella citrifrugis [RESSCI] and Spodoptera ornithogalli [PRODOR], where the codes within brackets refer to EPPO codes (see EPPO Global Database, https://gd.eppo.int).