ORGANISATION EUROPEENNE ET MEDITERRANEENNE POUR LA PROTECTION DES PLANTES EUROPEAN AND MEDITERRANEAN PLANT PROTECTION ORGANIZATION EPPO Reporting Service NO. 7 PARIS, 2020-07 General 2020/137 New data on quarantine pests and pests of the EPPO Alert List 2020/138 New and revised dynamic EPPO datasheets are available in the EPPO Global Database 2020/139 Recommendations to policy makers from Euphresco projects Pests 2020/140 Anoplophora glabripennis eradicated from Canada 2020/141 First report of Spodoptera frugiperda in Pakistan 2020/142 First report of Spodoptera frugiperda in Timor-Leste 2020/143 First report of Spodoptera frugiperda in Mauritania 2020/144 First report of Hyphantria cunea in Belarus 2020/145 Interceptions of Bactrocera species in Austria 2020/146 Agrilus mali: addition to the EPPO Alert List Diseases 2020/147 Pseudomonas syringae pv. actinidiae does not occur in Georgia 2020/148 Phytophthora ramorum eradicated from Sweden 2020/149 A new canker disease of Abies sibirica caused by a Corinectria species in Central Siberia (RU) 2020/150 Monilinia fructicola found on Prunus salicina in Turkey 2020/151 Plum pox virus strain W found in Kazakhstan Invasive plants 2020/152 Trianthema portulacastrum in the EPPO region: addition to the EPPO Alert List 2020/153 First report of Eriochloa villosa in Austria 2020/154 First report of Amaryllis belladonna in Tunisia 2020/155 Solanum carolinense in Austria 2020/156 Alien flora across European coastal dunes 2020/157 Public awareness and invasive alien plants 21 Bld Richard Lenoir Tel: 33 1 45 20 77 94 Web: www.eppo.int 75011 Paris E-mail: [email protected] GD: gd.eppo.int EPPO Reporting Service 2020 no. 7 - General 2020/137 New data on quarantine pests and pests of the EPPO Alert List By searching through the literature, the EPPO Secretariat has extracted the following new data concerning quarantine pests and pests included (or formerly included) on the EPPO Alert List, and indicated in bold the situation of the pest concerned using the terms of ISPM no. 8. • New records In Zambia, Curtobacterium flaccumfaciens pv. flaccumfaciens (EPPO A2 List) was found for the first time in March 2019. The bacterium was detected in symptomatic soybean (Glycine max) plants grown in research plots in Kabwe and Mpogwe (Pawlowski and Hartman, 2019). Present. In South Korea, field surveys were conducted in major production areas for strawberry in 2018-2019 to determine the incidence of aphid-transmitted viruses. Strawberry mild yellow edge virus (SMYEV – EU Annexes), Strawberry mottle virus (SMoV – EU Annexes) were detected with low infection rates of 0.7% and 1.3%, respectively. Strawberry crinkle virus (SCV – EU Annexes), and Strawberry vein banding virus (SVBV – EPPO A2 List) were not detected. No obvious symptoms were observed in the strawberry plants infected by SMYEV or SMoV (Kwon et al., 2019). SMYEV and SMoV: Present. • Detailed records Apple stem grooving virus and apple chlorotic leaf spot virus (both listed on EU Annexes) were first found infecting loquat (Eriobotrya japonica) in Chongqing, China in March 2018. This is the first report of these viruses naturally infecting loquat (Liu et al., 2019). • Eradication In May 2020, Ralstonia solanacearum race 3 biovar 2 (EPPO A2 List) was detected in Pelargonium in Canada (EPPO RS 2020/098). The bacterium was found in a greenhouse in Ontario. An eradication campaign was implemented and involved more than 88 facilities in 8 provinces. In July 2020, the Canadian Food Inspection Agency announced that Ralstonia solanacearum race 3 biovar 2 had been successfully eradicated from Canadian greenhouses. The pest status of Ralstonia solanacearum race 3 biovar 2 in Canada is officially declared as: Absent, pest eradicated. In April 2020, Ralstonia solanacearum race 3 biovar 2 (EPPO A2 List) was detected on greenhouse Pelargonium in the USA (EPPO RS 2020/099). The bacterium was first found in a greenhouse in Michigan and then in another site. An eradication campaign was initiated, involving more than 650 facilities in 44 states, and in June 2020 USDA-APHIS announced that Ralstonia solanacearum race 3 biovar 2 had been successfully eradicated from US greenhouses. The pest status of Ralstonia solanacearum race 3 biovar 2 in the USA is officially declared as: Absent and eradicated from the United States. • Host plants Tomato chlorosis virus (Crinivirus, ToCV – EPPO A2 List) has been detected in seedlings of Tectona grandis (Lamiaceae) in Brazil. Affected plants were showing interveinal yellowing and were also infested by Bemisia tabaci (Borges et al., 2019). 2 EPPO Reporting Service 2020 no. 7 - General • New pests Phytophthora abietivora is a new species in the genus Phytophthora, described from diseased Christmas trees (Abies fraseri) in Connecticut (USA). The pathogen caused root rots leading to death of A. fraseri trees (Li et al., 2019). • Epidemiology Studies conducted in the Republic of Korea had shown that infected seeds of tomato (Solanum lycopersicum) could transmit Tomato yellow leaf curl virus (TYLCV - EPPO A2 List) (EPPO RS 2018/173). However, further surveys conducted by Pérez-Padilla et al. (2019) with the type strain (TYLCV-IL) on more than 3000 plants of seven tomato genotypes concluded that most of the virus is located externally, as contaminant of the seed coat and that TYLCV- IL is not seed transmitted in tomato. Sources: Borges RCF, Fontes MG, Macedo MA, Lima F, Boiteux LS, Fonseca MEN (2019) First report of tomato chlorosis virus infecting Tectona grandis associated with infestation of Bemisia tabaci Mediterranean in Central Brazil. Plant Disease 103(10), 2704-2705. Kwon S-J, Yoon J-B, Cho I-S, Yoon J-Y, Kwon T-R (2019) Incidence of aphid- transmitted strawberry viruses in Korea and phylogenetic analysis of Korean isolates of strawberry mottle virus. Research in Plant Disease 25(4), 226–232 (in Korean with English abstract) https://doi.org/10.5423/RPD.2019.25.4.226 Li D-W, Schultes NP, LaMondia JA, Cowles RS (2019) Phytophthora abietivora, a new species isolated from diseased Christmas trees in Connecticut, USA. Plant Disease 103(12), 3057-3064. https://doi.org/10.1094/PDIS-03-19-0583-RE Liu Q, Xuan Z, Wu J, Qiu Y, Li M, Zhang S, Wu D, Li R, Cao M (2019) Loquat is a new natural host of apple stem grooving virus and apple chlorotic leaf spot virus in China. Plant Disease 103(12), p 3290. https://doi.org/10.1094/PDIS-04-19-0721- PDN NAPPO Phytosanitary Alert System. Official Pest Reports. - Canada (2020-07-20) Ralstonia solanacearum, race 3 biovar 2 (Rs R3bv2) eradicated from Canadian greenhouses. https://www.pestalerts.org/official-pest- report/ralstonia-solanacearum-race-3-biovar-2-rs-r3bv2-eradicated-canadian - USA (2020-06-23) Ralstonia solanacearum race 3 biovar 2: eradicated from US greenhouses. https://www.pestalerts.org/official-pest-report/ralstonia- solanacearum-race-3-biovar-2-eradicated-u-s-greenhouses Pawlowski ML, Hartman GL (2020) First report of Curtobacterium flaccumfaciens pv. flaccumfaciens causing bacterial tan spot on soybean in Africa. Plant Disease 103(10), p 2665. https://doi.org/10.1094/PDIS-05-19-1036-PDN Pérez-Padilla V, Fortes IM, Romero-Rodríguez B, Arroyo-Mateos M, Castillo AG, Moyano C, De León L, Moriones E (2020) Revisiting seed transmission of the type strain of Tomato yellow leaf curl virus in tomato plants. Phytopathology 110(1), 121-129. Additional key words: absence, detailed record, Computer codes: ACLSV0, ASGV00, CORBFL, PHYAB, RALSSO, epidemiology, eradication, new host plant, new pest, new SMOV00, SMYEV0, TOCV00, BR, CA, CN, KR, US, ZM record 3 EPPO Reporting Service 2020 no. 7 - General 2020/138 New and revised dynamic EPPO datasheets are available in the EPPO Global Database The EPPO Secretariat is in the process of revising the EPPO datasheets on pests recommended for regulation. This project is also supported by an EU grant agreement. This revision provides the opportunity to create dynamic datasheets in the EPPO Global Database in which the sections on pest identity, host range and geographical distribution are automatically generated by the database. It is planned that these dynamic datasheets will progressively replace the PDF documents that are currently stored in the database. Since the previous report (EPPO RS 2020/113), the following revised EPPO datasheets have been published in the EPPO Global Database: • Agrilus anxius: https://gd.eppo.int/taxon/AGRLAX/datasheet • Chrysanthemum stem necrosis virus: https://gd.eppo.int/taxon/CSNV00/datasheet • Heterobasidion irregulare: https://gd.eppo.int/taxon/HETEIR/datasheet • Pityophthorus juglandis: https://gd.eppo.int/taxon/PITOJU/datasheet Source: EPPO Secretariat (2020-07). Additional key words: publication Computer codes: AGRLAX, CSNV00, HETEIR, PITOJU 2020/139 Recommendations to policy makers from Euphresco projects The following research project has recently been carried out in the framework of Euphresco (network for phytosanitary research coordination and funding - hosted by EPPO). A report presenting the main objectives and results of this project, as well as recommendations made to policy makers can be viewed on the Internet. An International Plant Sentinel Network as an early-warning system; research on future pest threats (IPSN II) Plant health legislation is heavily reliant upon lists of known damaging organisms and Pest Risk Analyses are used to determine the potential risk that organisms pose. A vital issue for risk analysts and National Plant Protection Organizations (NPPOs) is the ‘unknown’ threats and the lack of knowledge regarding those new and emerging threats. The International Plant Sentinel Network project provided the proof of concept that botanic gardens can help NPPOs. Botanic garden staff, if provided with the right training, can support the work of NPPOs by monitoring plants in collections of botanic gardens and arboreta. Pest surveillance and reporting have been integrated into the normal working practices of botanic gardens of the International Plant Sentinel Network. Monitoring plants growing outside their native regions provides a valuable opportunity to increase knowledge about new pest-host relationships, thus supporting Pest Risk Analysis.