Articles | Volume 25, issue 2
https://doi.org/10.5194/we-25-189-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/we-25-189-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Standard article
| 
21 Oct 2025
Standard article |
| 21 Oct 2025
| 21 Oct 2025
Unravelling potential plant health threats for the European Union: application of horizon scanning methodology
European Food Safety Authority (EFSA), Parma, 43126, Italy
Júlia López-Mercadal
French Agency for Food, Environmental and Occupational Health & Safety (ANSES), Angers, 49000, France
Caterina Campese
Lincoln University, Lincoln, 85084, New Zealand
Evgenia Sarakatsani
Universita' degli Studi di Palermo, Palermo, 90133, Italy
Sara Tramontini
European Food Safety Authority (EFSA), Parma, 43126, Italy
Cited articles
Acuña, R., Rouard, M., Leiva, A. M., Marques, C., Olortegui, J., Ureta, C., Cabrera-Pintado, R. M., Rojas, J. C., Lopez-Alvarez, D., and Cenci, A.: First report of Fusarium oxysporum f. sp. cubense tropical race 4 causing Fusarium wilt in Cavendish bananas in Peru, Plant Dis., 106, 2268, https://doi.org/10.1094/PDIS-09-21-1951-PDN, 2022.
Antoniou, A., Abergel, M., Akrivou, A., Beale, T., Day, R., Fielder, H., Larenaudie, M., MacLeod, A., Rosace, M., and Sarakatsani, E.: Horizon scanning: Tools to identify emerging threats to plant health in a changing world, EPPO Bull., 54, 73–88, https://doi.org/10.1111/epp.12988, 2024.
Bai, T.-T., Xie, W.-B., Zhou, P.-P., Wu, Z.-L., Xiao, W.-C., Zhou, L., Sun, J., Ruan, X.-L., and Li, H.-P.: Transcriptome and expression profile analysis of highly resistant and susceptible banana roots challenged with Fusarium oxysporum f. sp. cubense tropical race 4, PLOS One, 8, e73945, https://doi.org/10.1371/journal.pone.0073945, 2013.
Balajee, S. A., Salyer, S. J., Greene-Cramer, B., Sadek, M., and Mounts, A. W.: The practice of event-based surveillance: concept and methods, Comm. Com. Inf. Sc., 6, 1–9, https://doi.org/10.1080/23779497.2020.1848444, 2021.
Bertelsmeier, C., Bonnamour, A., Brockerhoff, E. G., Pyšek, P., Skuhrovec, J., Richardson, D. M., and Liebhold, A. M.: Global proliferation of nonnative plants is a major driver of insect invasions, BioScience, 74, 770–781, https://doi.org/10.1093/biosci/biae088, 2024.
Björklund, N. and Boberg, J.: Feedback on a list of plant pests with candidates for risk assessments–Batch 3, Swedish University of Agricultural Sciences, https://res.slu.se/id/publ/122566 (last access: 17 October 2025), 2022.
Brockerhoff, E. G., Barbaro, L., Castagneyrol, B., Forrester, D. I., Gardiner, B., González-Olabarria, J. R., Lyver, P. O., Meurisse, N., Oxbrough, A., and Taki, H.: Forest biodiversity, ecosystem functioning and the provision of ecosystem services, Biodivers. Conserv., 26, 3005–3035, https://doi.org/10.1007/s10531-017-1453-2, 2017.
Brunetti, A., Matere, A., Lumia, V., Pasciuta, V., Fusco, V., Sansone, D., Marangi, P., Cristella, N., Faggioli, F., and Scortichini, M.: Neofusicoccum mediterraneum is involved in a twig and branch dieback of olive trees observed in Salento (Apulia, Italy), Pathogens, 11, 53, https://doi.org/10.3390/pathogens11010053, 2022.
Bucci, E. M.: Xylella fastidiosa, a new plant pathogen that threatens global farming: Ecology, molecular biology, search for remedies, Biochem. Bioph. Res. Co., 502, 173–182, https://doi.org/10.1016/j.bbrc.2018.05.073, 2018.
CABI: CABI Improving lives by solving problems in agriculture and the environment, https://www.cabi.org/ (last access: 17 October 2025), 2025.
Cancellario, T., Laini, A., Wood, P. J., and Guareschi, S.: Among demons and killers: current and future potential distribution of two hyper successful invasive gammarids, Biol. Invasions, 25, 1627–1642, https://doi.org/10.1007/s10530-023-03000-y, 2023.
Chen, D., Ju, M., Xie, J., Chen, X.-L., and Peng, J.: Current progress on pathogenicity-related genes in Fusarium oxysporum f. sp. cubense tropical race 4, Phytopathology Research, 6, 53, https://doi.org/10.1186/s42483-024-00274-5, 2024.
Corrêa, A. S., Cordeiro, E. M., and Omoto, C.: Agricultural insect hybridization and implications for pest management, Pest. Manag. Sci., 75, 2857–2864, https://doi.org/10.1002/ps.5495, 2019.
Costa, G. V. da, Neves, C. S. V. J., Bassanezi, R. B., Leite, R. P., and Telles, T. S.: Economic impact of Huanglongbing on orange production, Rev. Bras. Frutic., 43, e-472, https://doi.org/10.1590/0100-29452021472, 2021.
Cuthbert, R. N., Diagne, C., Hudgins, E. J., Turbelin, A., Ahmed, D. A., Albert, C., Bodey, T. W., Briski, E., Essl, F., and Haubrock, P. J.: Biological invasion costs reveal insufficient proactive management worldwide, Sci. Total Environ., 819, 153404, https://doi.org/10.1016/j.scitotenv.2022.153404, 2022.
De Groote, H., Kimenju, S. C., Munyua, B., Palmas, S., Kassie, M., and Bruce, A.: Spread and impact of fall armyworm (Spodoptera frugiperda JE Smith) in maize production areas of Kenya, Agr. Ecosyst. Environ., 292, 106804, https://doi.org/10.1016/j.agee.2019.106804, 2020.
Diaz-Lara, A., Wunderlich, L., Nouri, M. T., Golino, D., and Al Rwahnih, M.: Incidence and detection of negative-stranded RNA viruses infecting apple and pear trees in California, J. Phytopathol., 170, 15–20, https://doi.org/10.1111/jph.13051, 2022.
EFSA Scientific Committee, Benford, D., Halldorsson, T., Jeger, M. J., Knutsen, H. K., More, S., Naegeli, H., Noteborn, H., Ockleford, C., and Ricci, A.: Guidance on uncertainty analysis in scientific assessments, Efsa Journal, 16, e05123, https://doi.org/10.2903/j.efsa.2018.5123, 2018.
EFSA (Panel on Plant Health, PLH), Bragard, C., Baptista, P., Chatzivassiliou, E., Di Serio, F., Gonthier, P., Jaques Miret, J. A., Justesen, A. F., MacLeod, A., and Magnusson, C. S.: Pest categorisation of Fusarium oxysporum f. sp. cubense Tropical Race 4, EFSA Journal, 20, e07092, https://doi.org/10.2903/j.efsa.2022.7092, 2022a.
EFSA (European Food Safety Authority), Tayeh, C., Mannino, M. R., Mosbach-Schulz, O., Stancanelli, G., Tramontini, S., Gachet, E., Candresse, T., Jaques Miret, J. A., and Jeger, M. J.: Proposal of a ranking methodology for plant threats in the EU, EFSA Journal, 20, e07025, https://doi.org/10.2903/j.efsa.2022.7025, 2022b.
EFSA (European Food Safety Authority): Pest categorisations, https://efsa.onlinelibrary.wiley.com/doi/toc/10.1002/(ISSN)1831-4732.Pest-categorisations (last access: 11 August 2025), 2024.
EFSA (European Food Safety Authority): Plant Health: Horizon Scanning Dashboard, https://www.efsa.europa.eu/en/powerbi/plant-health-horizon-scanning-dashboard (last access: 11 August 2025), 2025a.
EFSA (European Food Safety Authority): Publications, Plant Health Newsltter, https://www.efsa.europa.eu/en/publications?f-5B0-5D=type-3A748 (last access: 11 August 2025), 2025b.
EPPO: EPPO A1 List of pests recommended for regulation as quarantine pests – version 2024-09, https://www.eppo.int/ACTIVITIES/plant_quarantine/A1_list (last access: 11 August 2025), 2024a.
EPPO: EPPO A2 List of pests recommended for regulation as quarantine pests – version 2024-09, https://www.eppo.int/ACTIVITIES/plant_quarantine/A2_list (last access: 11 August 2025), 2024b.
EPPO: EPPO Alert List, https://www.eppo.int/ACTIVITIES/plant_quarantine/alert_list (last access: 11 August 2025), 2024c.
EPPO: EPPO Reporting Service, https://www.eppo.int/RESOURCES/eppo_publications/eppo_reporting_service (last access: 11 August 2025), 2024d.
European Commission: Directorate General for Health and Food Safety, Request to provide a scientific and technical assistance on a horizon scanning exercise in view to crisis preparedness on plant health for the EU territory, M-2017-0012, EFSA-Q-2017-00037, https://open.efsa.europa.eu/question/EFSA-Q-2017-00037 (last access: 17 October 2025), 2017.
European Commission: Commission Implementing Regulation (EU) 2019/2072, current consolidated version 26/04/2025, http://data.europa.eu/eli/reg_impl/2019/2072/oj (last access: 11 August 2025), 2019.
European Commission: Emergency control measures by plant pest, https://food.ec.europa.eu/plants/plant-health-and-biosecurity/plant-health-rules/control-measures_en (last access: 11 August 2025), 2024.
Fantle-Lepczyk, J. E., Haubrock, P. J., Kramer, A. M., Cuthbert, R. N., Turbelin, A. J., Crystal-Ornelas, R., Diagne, C., and Courchamp, F.: Economic costs of biological invasions in the United States, Sci. Total Environ., 806, 151318, https://doi.org/10.1016/j.scitotenv.2021.151318, 2022.
FAO: FAO's Plant Production and Protection Division, Rome, https://doi.org/10.4060/cc2447en, 2022.
Fenn-Moltu, G., Ollier, S., Caton, B., Liebhold, A. M., Nahrung, H., Pureswaran, D. S., Turner, R. M., Yamanaka, T., and Bertelsmeier, C.: Alien insect dispersal mediated by the global movement of commodities, Ecol. Appl., 33, e2721, https://doi.org/10.1002/eap.2721, 2023.
Ferilli, F., Stancanelli, G., Linge, J. P., and Mannino, M. R.: A new online resource to monitor new or emerging plant pests: MEDISYS media monitoring and the case of Xylella fastidiosa, Phytopathology, 109, 216–218, https://doi.org/10.1094/PHYTO-07-18-0241-A, 2019.
Friedrich, S., De Vivo, M., Baden, C. U., Grevé, M. E., Maus, C., Udelhoven, T., and Krehenwinkel, H.: The quantity of deposited environmental DNA in plant–arthropod interactions depends on taxon, abundance and interaction time, Ecol. Entomol., 49, 989–993, https://doi.org/10.1111/een.13372, 2024.
Gentili, R., Schaffner, U., Martinoli, A., and Citterio, S.: Invasive alien species and biodiversity: Impacts and management, Roy. Sc. Ch., 22, 1–3, https://doi.org/10.1080/14888386.2021.1929484, 2021.
Giovani, B., Anthoine, G., Blümel, S., Cruz, M. L., de la Peña, A. I., Maes, M., Phillipson, B., Schenk, M., and Steinmöller, S.: Transnational European research collaboration to tackle plant health threats: Euphresco and its contribution to the new EU Plant Health Regulation, EPPO Bulletin, 49, 87–91, https://doi.org/10.1111/epp.12539, 2019.
Gossner, M. M., Menzel, F., and Simons, N. K.: Less overall, but more of the same: drivers of insect population trends lead to community homogenization, Biol. Letters, 19, 20230007, https://doi.org/10.1098/rsbl.2023.0007, 2023.
Harvey, J. A., Tougeron, K., Gols, R., Heinen, R., Abarca, M., Abram, P. K., Basset, Y., Berg, M., Boggs, C., and Brodeur, J.: Scientists' warning on climate change and insects, Ecol. Mongr., 93, e1553, https://doi.org/10.1002/ecm.1553, 2023.
Herms, D. A. and McCullough, D. G.: Emerald ash borer invasion of North America: history, biology, ecology, impacts, and management, Annu. Rev. Entomol., 59, 13–30, https://doi.org/10.1146/annurev-ento-011613-162051, 2014.
Hoffmann, B. D. and Courchamp, F.: Biological invasions and natural colonisations: are they that different?, Neobiota, 29, 1–14, https://doi.org/10.3897/neobiota.29.6959, 2016.
Hulagappa, T., Baradevanal, G., Surpur, S., Raghavendra, D., Doddachowdappa, S., Shashank, P. R., Mallaiah, K. K., and Bedar, J.: Diagnosis and potential invasion risk of Thrips parvispinus under current and future climate change scenarios, PeerJ, 10, e13868, https://doi.org/10.7717/peerj.13868, 2022.
Hulme, P. E.: Unwelcome exchange: International trade as a direct and indirect driver of biological invasions worldwide, One Earth, 4, 666–679, https://doi.org/10.1016/j.oneear.2021.04.015, 2021.
Hulme, P. E.: Trouble on the horizon: anticipating biological invasions through futures thinking, Biol. Rev., 100, 461–480, https://doi.org/10.1111/brv.13149, 2024.
IPBES: Global assessment report on biodiversity and ecosystem services of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services, Zenodo, https://doi.org/10.5281/zenodo.6417333, 2019.
IPPC: International Year of Plant Health–Final report, FAO on behalf of the Secretariat of the International Plant Protection Convention, https://doi.org/10.4060/cb7056en, 2021.
IPPC: E-commerce – A guide to managing the pest risk posed by goods ordered online and distributed through postal and courier pathways, FAO on behalf of the Secretariat of the International Plant Protection Convention, https://doi.org/10.4060/cc8209en, 2023.
Junius, S., Verlinden, W., Bemelmans, D., Varewyck, M., Verbeke, T., Tramontini, S., and Cortiñas Abrahantes, J.: PHoRiS (Pest Horizon and Risk Scanning), Zenodo, https://doi.org/10.5281/zenodo.10066271, 2023.
Kołodziejczyk, J., Fijarczyk, A., Porth, I., Robakowski, P., Vella, N., Vella, A., Kloch, A., and Biedrzycka, A.: Genomic investigations of successful invasions: the picture emerging from recent studies, Biol. Rev. Camb. Philos., 100, 1396–1418, https://doi.org/10.1111/brv.70005, 2025.
Kondo, H., Maejima, H., Maruyama, K., Fujita, M., and Ohki, T.: First Report of Chinese Wheat Mosaic Virus That Infects Barley in Japan, Plant Dis., 106, 2272, https://doi.org/10.1094/PDIS-12-21-2803-PDN, 2022.
Lawson Handley, L.: How will the “molecular revolution” contribute to biological recording?, Biol. J. Linn. Soc., 115, 750–766, https://doi.org/10.1111/bij.12516, 2015.
Liebhold, A. M., Brockerhoff, E. G., and Kimberley, M.: Depletion of heterogeneous source species pools predicts future invasion rates, J. Appl. Ecol., 54, 1968–1977, https://doi.org/10.1111/1365-2664.12895, 2017.
Linge, J. P., Steinberger, R., Weber, T. P., Yangarber, R., van der Goot, E., Al Khudhairy, D. H., and Stilianakis, N. I.: Internet surveillance systems for early alerting of health threats, Eurosurveillance, 14, 19162, https://doi.org/10.2807/ese.14.13.19162-en, 2009.
Linge, J. P., Verile, M., Tanev, H., Zavarella, V., Fuart, F., and van der Goot, E.: Media monitoring of public health threats with medisys, Editura Universitatii Alexandru Ioan Cuza, 17–31, ISBN 978-973-703-701-5, 2012.
Martín, P. R., Burela, S., Seuffert, M. E., Tamburi, N. E., and Saveanu, L.: Invasive Pomacea snails: actual and potential environmental impacts and their underlying mechanisms, CABI Reviews, 1–11, https://doi.org/10.1079/PAVSNNR201914042, 2019.
Meissner, H. E., Fritz, J. M., Kohl, L. M., Moylett, H. C., Moan, M. J., Emerine, S. E., and Kaye, A. C.: PestLens: an early-warning system supporting U.S. safeguarding against exotic plant pests, EPPO Bulletin, 45, 304–310, https://doi.org/10.1111/epp.12211, 2015.
Mejías Herrera, R., Hernández, Y., Magdama, F., Mostert, D., Bothma, S., Paredes Salgado, E., Terán, D., González, E., Angulo, R., and Angel, L.: First report of Fusarium wilt of Cavendish bananas caused by Fusarium oxysporum f. sp. cubense Tropical Race 4 in Venezuela, Plant Dis., 107, 3297, https://doi.org/10.1094/PDIS-04-23-0781-PDN, 2023.
Menchetti, M., Schifani, E., Alicata, A., Cardador, L., Sbrega, E., Toro-Delgado, E., and Vila, R.: The invasive ant Solenopsis invicta is established in Europe, Curr. Biol., 33, R896–R897, https://doi.org/10.1016/j.cub.2023.07.036, 2023.
Mulema, J., Nankinga, C., Kagorora, J. P. K., Tusiime, G., Amayo, R., Chemonges, M., Gumisiriya, C., Kato, F., Kigongo, B. M., Kutunga, D., Mudde, B., Muhumuza, J. B., Mukasa, Y., Musiimenta, H., Muzira, F., Namasa, E. J., Ramathan, I., Sebutare, G., Ssamula, A., Tukahirwa, B., Opio, S. M., Obare, I. J., Aliamo, C., Alokit, C., Tumuhaise, V., Karanja, D., Mwambu, P., Oronje, M., Athman, S. Y., Akiri, M., Rwomushana, I., Tugume, J., Talwana, H., Onkendi, E., and Ochwo, M.: Prioritising non-native pest species to inform plant health biosecurity policy decisions and to safeguard agriculture, forestry, biodiversity, and livelihoods in Uganda, Frontiers in Agronomy, 7, https://doi.org/10.3389/fagro.2025.1601845, 2025.
Murman, K., Setliff, G. P., Pugh, C. V., Toolan, M. J., Canlas, I., Cannon, S., Abreu, L., Fetchen, M., Zhang, L., and Warden, M. L.: Distribution, survival, and development of spotted lanternfly on host plants found in North America, Environ. Entomol., 49, 1270–1281, https://doi.org/10.1093/ee/nvaa126, 2020.
Nardi, D., Rosace, M. C., Cendoya, M., and Marini, L.: Trade Network Dynamics and Alien Plant Pest Introductions: A Global Analysis, Divers. Distrib., 31, e13963, https://doi.org/10.1111/ddi.13963, 2025.
Noar, R. D., Jahant-Miller, C. J., Emerine, S., and Hallberg, R.: Early warning systems as a component of integrated pest management to prevent the introduction of exotic pests, Journal of Integrated Pest Management, 12, 16, https://doi.org/10.1093/jipm/pmab011, 2021.
Richter, D. de B., Oh, N.-H., Fimmen, R., and Jackson, J.: The rhizosphere and soil formation, in: The rhizosphere, Elsevier, 179-200, https://doi.org/10.1016/B978-012088775-0/50010-0, 2007.
Roditakis, E., Kremi, K., Mylona, K., Georgousis, V., Avtzis, D. N., and Simoglou, K. B.: First Report of the Pepper Fruit Fly Atherigona orientalis (Schiner 1968)(Diptera: Muscidae) Infesting Commercial Pepper Crops in Greece, Insects, 14, 393, https://doi.org/10.3390/insects14040393, 2023.
Rortais, A., Belyaeva, J., Gemo, M., Van der Goot, E., and Linge, J. P.: MedISys: An early-warning system for the detection of (re-) emerging food-and feed-borne hazards, Food Research International, 43, 1553–1556, https://doi.org/10.1016/j.foodres.2010.04.009, 2010.
Sarakatsani, E., Tramontini, S., and Vos, S.: Drivers of emerging pests through Horizon Scanning, Coference: iPRRG, Athens, Greece, https://doi.org/10.13140/RG.2.2.33422.95044, 2022.
Schneider, K., Van der Werf, W., Cendoya, M., Mourits, M., Navas-Cortés, J. A., Vicent, A., and Oude Lansink, A.: Impact of Xylella fastidiosa subspecies pauca in European olives, P. Natl. Acad. Sci.-Biol., 117, 9250–9259, https://doi.org/10.1073/pnas.1912206117, 2020.
Schneiker, J., Weisser, W. W., Settele, J., Nguyen, V. S., Bustamante, J. V., Marquez, L., Villareal, S., Arida, G., Van Chien, H., and Heong, K. L.: Is there hope for sustainable management of golden apple snails, a major invasive pest in irrigated rice?, NJAS-Wagen J. Life Sc., 79, 11–21, https://doi.org/10.1016/j.njas.2016.07.001, 2016.
Schrader, G., MacLeod, A., Mittinty, M., Brunel, S., Kaminski, K., Kehlenbeck, H., Petter, F., and Baker, R.: Enhancements of pest risk analysis techniques, EPPO Bulletin, 40, 107–120, https://doi.org/10.1111/j.1365-2338.2009.02360.x, 2010.
Seebens, H., Blackburn, T. M., Dyer, E. E., Genovesi, P., Hulme, P. E., Jeschke, J. M., Pagad, S., Pyšek, P., Winter, M., and Arianoutsou, M.: No saturation in the accumulation of alien species worldwide, Nat. Commun., 8, 14435, https://doi.org/10.1038/ncomms14435, 2017.
Semeraro, T., Gatto, E., Buccolieri, R., Catanzaro, V., De Bellis, L., Cotrozzi, L., Lorenzini, G., Vergine, M., and Luvisi, A.: How ecosystem services can strengthen the regeneration policies for monumental olive groves destroyed by Xylella fastidiosa bacterium in a peri-urban area, Sustainability-Basel, 13, 8778, https://doi.org/10.3390/su13168778, 2021.
Sutherland, W. J. and Woodroof, H. J.: The need for environmental horizon scanning, Trends Ecol. Evol., 24, 523–527, https://doi.org/10.1016/j.tree.2009.04.008, 2009.
Takahashi, B. and Tandoc, E. C. J.: Media sources, credibility, and perceptions of science: Learning about how people learn about science, Public Underst. Sci., 25, 674–690, https://doi.org/10.1177/0963662515574986, 2016.
Thomas, C. S., Nelson, N. P., Jahn, G. C., Niu, T., and Hartley, D. M.: Use of media and public-domain Internet sources for detection and assessment of plant health threats, Emerging Health Threats Journal, 4, 7157, https://doi.org/10.3402/ehtj.v4i0.7157, 2011.
Tramontini, S., Ribaya, M., Larenaudie, M., Gachet, E., Vos, S., Doherty, B., and López-Mercadal, J.: Report of the First International Workshop on Horizon Scanning for Plant Health, Zenodo, https://doi.org/10.5281/zenodo.13939336, 2024.
Tramontini, S., Bellenot, C., Pochlauer, D., Ribaya, M., Gachet, E., Vos, S., López-Mercadal, J., and Reignault, P.: Report of the Second International Workshop on Horizon Scanning for Plant Health, Zenodo, https://doi.org/10.5281/zenodo.15696756, 2025.
Turbelin, A. J., Hudgins, E. J., Catford, J. A., Cuthbert, R. N., Diagne, C., Kourantidou, M., Roiz, D., and Courchamp, F.: Biological invasions as burdens to primary economic sectors, Glob. Environ. Change, 87, 102858, https://doi.org/10.1016/j.gloenvcha.2024.102858, 2024.
Wickham, H.: Data analysis, in: ggplot2: Elegant graphics for data analysis, Springer, 189–201, https://doi.org/10.1007/978-3-319-24277-4, 2016.
Ward, M.: Action against pest spread – the case for retrospective analysis with a focus on timing, Food Secur., 8, 77–81, https://doi.org/10.1007/s12571-015-0532-z, 2016.
WUR: Breakthrough in the fight against devastating banana diseases: first resistant plant developed, https://www.wur.nl/en/newsarticle/ (last access: 11 August 2025), 2024.
Short summary
Horizon scanning (HS) applied to invasion processes plays a crucial role in the early identification of new pests and serves as a valuable complement to monitoring efforts. Here, an analysis of the HS activity during the last 7 years is conducted. The data obtained reflect patterns about the monitoring phases, their outcomes, and the way such outputs are communicated. These results show how effective the methodology has been in detecting not-listed pests as emerging pests over the period.
Horizon scanning (HS) applied to invasion processes plays a crucial role in the early...
