NAME OF THE ORGANISM: Grapevine fanleaf virus (GFLV00)
GENERAL INFORMATION ON THE PEST
Name as submitted in the project specification (if different to the preferred name):
Pest category:
Viruses and viroids
1- Identity of the pest/Level of taxonomic listing:
Is the organism clearly a single taxonomic entity and can it be adequately distinguished from other entities of the same rank?
Yes
Is the pest defined at the species level or lower?:
Yes
Can listing of the pest at a taxonomic level higher than species be supported by scientific reasons or can species be identified within the taxonomic rank which are the (main) pests of concern?
- Not relevant: Vine sector
Is it justified that the pest is listed at a taxonomic rank below species level?
Not relevant
Conclusion:
- Candidate: Vine sector
2 – Status in the EU:
Is this pest already a quarantine pest for the whole EU?
No
Presence in the EU:
Yes
List of countries (EPPO Global Database):
Austria (2000); Bulgaria (2000); Croatia (2000); Cyprus (2000); Czech Republic (2000); France (2000); Germany (2000); Greece (2000); Greece/Kriti (2000); Hungary (2000); Italy (2000); Italy/Sicilia (2000); Italy/Sardegna (2000); Malta (2000); Portugal (2000); Portugal/Azores (2000); Romania (2000); Slovakia (2000); Slovenia (2000); Spain (2000); Spain/Islas Canárias (2000)
Conclusion:
candidate
Justification (if necessary):
Data of the presence of this pest on the EU territory are available in EPPO Global Database (https://gd.eppo.int/).
HOST PLANT N°1: Vitis (1VITG) for the Vine sector.
Origin of the listing:
Council Directive 68/193/EEC
Plants for planting:
Plants intended for planting, other than seeds
3 - Is the pest already listed in a PM4 standard on the concerned host plant?
Yes
Conclusion:
Qualified
CONCLUSION ON THE STATUS:
Recommended for listing as an RNQP, based on EPPO PM 4 Standard.
8 - Tolerance level:
Is there a need to change the Tolerance level:
Yes
Proposed Tolerance levels:
Zero tolerance based on visual examination for the marketed plants, and on testing stock nurseries for Pre-basic, Basic and Certified material. Experts also agreed to below the failure rate for nepoviruses from 10% to 5% for the non-certified material (within a 10 % overall limit for virus symptoms).
9 - Risk management measures:
Is there a need to change the Risk management measure:
Yes
Proposed Risk management measure:
Based on visual examination carried out at least twice during the last growing season at appropriate times for the expression of symptoms.
- Non-certified ('standard'): not more than 5% [reduced from current 10%] of plants showing symptoms of nepoviruses (Arabis mosaic virus, Grapevine fanleaf virus and Cherry leaf roll virus) and not more than 10% of plants showing any virus symptoms and all plants showing symptoms rogued out and destroyed within two weeks.
- Pre-basic (“initial”), Basic, Certified: additional measures (in addition to non-certified) could include an isolation distance from other vines and other host plants for Arabis mosaic virus, a periodic testing of mother plants, a soil testing for virus vector nematodes, and a rest period from host plants of the virus before planting.
- Non-certified ('standard'): not more than 5% [reduced from current 10%] of plants showing symptoms of nepoviruses (Arabis mosaic virus, Grapevine fanleaf virus and Cherry leaf roll virus) and not more than 10% of plants showing any virus symptoms and all plants showing symptoms rogued out and destroyed within two weeks.
- Pre-basic (“initial”), Basic, Certified: additional measures (in addition to non-certified) could include an isolation distance from other vines and other host plants for Arabis mosaic virus, a periodic testing of mother plants, a soil testing for virus vector nematodes, and a rest period from host plants of the virus before planting.
REFERENCES: