Risk assessment and reduction options for Cryphonectria parasitica in the EU
Abstract Following a request from the European Commission, the EFSA Plant Health (PLH) Panel performed a risk assessment for Cryphonectria parasitica in the EU with the aim to assess the current EU phytosanitary requirements and identify the risk reduction options (RROs), which would preserve the pr...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-12-01
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| Series: | EFSA Journal |
| Subjects: | |
| Online Access: | https://doi.org/10.2903/j.efsa.2016.4641 |
| _version_ | 1818848784933715968 |
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| author | EFSA Panel on Plant Health (PLH) Michael Jeger Claude Bragard Elisavet Chatzivassiliou Katharina Dehnen‐Schmutz Gianni Gilioli Josep Anton Jaques Miret Alan MacLeod Maria Navajas Navarro Björn Niere Stephen Parnell Roel Potting Trond Rafoss Gregor Urek Ariena Van Bruggen Wopke Van derWerf Jonathan West Stephan Winter Giorgio Maresi Simone Prospero Anna Maria Vettraino Irene Vloutoglou Marco Pautasso Vittorio Rossi |
| author_facet | EFSA Panel on Plant Health (PLH) Michael Jeger Claude Bragard Elisavet Chatzivassiliou Katharina Dehnen‐Schmutz Gianni Gilioli Josep Anton Jaques Miret Alan MacLeod Maria Navajas Navarro Björn Niere Stephen Parnell Roel Potting Trond Rafoss Gregor Urek Ariena Van Bruggen Wopke Van derWerf Jonathan West Stephan Winter Giorgio Maresi Simone Prospero Anna Maria Vettraino Irene Vloutoglou Marco Pautasso Vittorio Rossi |
| author_sort | EFSA Panel on Plant Health (PLH) |
| collection | DOAJ |
| description | Abstract Following a request from the European Commission, the EFSA Plant Health (PLH) Panel performed a risk assessment for Cryphonectria parasitica in the EU with the aim to assess the current EU phytosanitary requirements and identify the risk reduction options (RROs), which would preserve the protected zone (PZ) status in some parts of the EU, where the pathogen is not known to occur. C. parasitica, a bark‐inhabiting fungus causing blight of chestnut trees (Castanea spp.), has a wide distribution in the EU (non‐PZs). Three regulatory scenarios were considered for the whole risk assessment (RA) area: the current situation in non‐PZs (scenario A0), the situation in the EU without measures (A1) and the current situation in PZs with additional RROs (A2). The Panel considered both the risk of potential spread to PZs of C. parasitica strains currently present in the non‐PZs and the risk of introduction from Third Countries and spread in non‐PZs of new, virulent strains that would be able to jeopardise the currently effective hypovirulence and cause severe impact. The number of new introductions of C. parasitica into the EU is reduced by approximately a factor 5,000 (median values) in scenario A2 compared to scenario A0. Under the A0, A1 and A2 scenarios, 2, 3.5 and 0.5 (median values) EU Member States, respectively, are expected to be affected in the next 10 years due to spread of C. parasitica strains. The estimated relative impact on ecosystem services, due to the introduction and spread in the EU of new, virulent strains, is higher for scenario A1 compared to scenarios A0 and A2. The current EU requirements and the additional RROs considered in scenario A2 were assessed to be effective in reducing the risk of introduction and spread of C. parasitica, thus preserving the PZ status in some parts of the EU. |
| first_indexed | 2024-12-19T06:22:51Z |
| format | Article |
| id | doaj.art-ffdbfc5bd748493cb910925809f46ff5 |
| institution | Directory Open Access Journal |
| issn | 1831-4732 |
| language | English |
| last_indexed | 2024-12-19T06:22:51Z |
| publishDate | 2016-12-01 |
| publisher | Wiley |
| record_format | Article |
| series | EFSA Journal |
| spelling | doaj.art-ffdbfc5bd748493cb910925809f46ff52022-12-21T20:32:38ZengWileyEFSA Journal1831-47322016-12-011412n/an/a10.2903/j.efsa.2016.4641Risk assessment and reduction options for Cryphonectria parasitica in the EUEFSA Panel on Plant Health (PLH)Michael JegerClaude BragardElisavet ChatzivassiliouKatharina Dehnen‐SchmutzGianni GilioliJosep Anton Jaques MiretAlan MacLeodMaria Navajas NavarroBjörn NiereStephen ParnellRoel PottingTrond RafossGregor UrekAriena Van BruggenWopke Van derWerfJonathan WestStephan WinterGiorgio MaresiSimone ProsperoAnna Maria VettrainoIrene VloutoglouMarco PautassoVittorio RossiAbstract Following a request from the European Commission, the EFSA Plant Health (PLH) Panel performed a risk assessment for Cryphonectria parasitica in the EU with the aim to assess the current EU phytosanitary requirements and identify the risk reduction options (RROs), which would preserve the protected zone (PZ) status in some parts of the EU, where the pathogen is not known to occur. C. parasitica, a bark‐inhabiting fungus causing blight of chestnut trees (Castanea spp.), has a wide distribution in the EU (non‐PZs). Three regulatory scenarios were considered for the whole risk assessment (RA) area: the current situation in non‐PZs (scenario A0), the situation in the EU without measures (A1) and the current situation in PZs with additional RROs (A2). The Panel considered both the risk of potential spread to PZs of C. parasitica strains currently present in the non‐PZs and the risk of introduction from Third Countries and spread in non‐PZs of new, virulent strains that would be able to jeopardise the currently effective hypovirulence and cause severe impact. The number of new introductions of C. parasitica into the EU is reduced by approximately a factor 5,000 (median values) in scenario A2 compared to scenario A0. Under the A0, A1 and A2 scenarios, 2, 3.5 and 0.5 (median values) EU Member States, respectively, are expected to be affected in the next 10 years due to spread of C. parasitica strains. The estimated relative impact on ecosystem services, due to the introduction and spread in the EU of new, virulent strains, is higher for scenario A1 compared to scenarios A0 and A2. The current EU requirements and the additional RROs considered in scenario A2 were assessed to be effective in reducing the risk of introduction and spread of C. parasitica, thus preserving the PZ status in some parts of the EU.https://doi.org/10.2903/j.efsa.2016.4641Castanea sativachestnut blightforest pathologyhypovirulencephytosanitaryplants for planting |
| spellingShingle | EFSA Panel on Plant Health (PLH) Michael Jeger Claude Bragard Elisavet Chatzivassiliou Katharina Dehnen‐Schmutz Gianni Gilioli Josep Anton Jaques Miret Alan MacLeod Maria Navajas Navarro Björn Niere Stephen Parnell Roel Potting Trond Rafoss Gregor Urek Ariena Van Bruggen Wopke Van derWerf Jonathan West Stephan Winter Giorgio Maresi Simone Prospero Anna Maria Vettraino Irene Vloutoglou Marco Pautasso Vittorio Rossi Risk assessment and reduction options for Cryphonectria parasitica in the EU EFSA Journal Castanea sativa chestnut blight forest pathology hypovirulence phytosanitary plants for planting |
| title | Risk assessment and reduction options for Cryphonectria parasitica in the EU |
| title_full | Risk assessment and reduction options for Cryphonectria parasitica in the EU |
| title_fullStr | Risk assessment and reduction options for Cryphonectria parasitica in the EU |
| title_full_unstemmed | Risk assessment and reduction options for Cryphonectria parasitica in the EU |
| title_short | Risk assessment and reduction options for Cryphonectria parasitica in the EU |
| title_sort | risk assessment and reduction options for cryphonectria parasitica in the eu |
| topic | Castanea sativa chestnut blight forest pathology hypovirulence phytosanitary plants for planting |
| url | https://doi.org/10.2903/j.efsa.2016.4641 |
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