Pest categorisation of non‐EU viruses and viroids of Vitis L.

摘要

Following a request from the Commission, the Panel on Plant Health addressed the pest categorisation of the viruses and viroids of L. determined as being either non‐ or of undetermined standing in a previous opinion. These infectious agents belong to different genera and are heterogeneous in their biology. With the exclusion of grapevine virus 101‐14.N.23.9.1/South Africa/2009 for which very limited information exists, the pest categorisation was completed for 30 viruses or viroids having acknowledged identities and available detection methods. All these viruses are efficiently transmitted by vegetative propagation techniques, with plants for planting representing the major pathway for long‐distance dispersal and thus considered as the major pathway for potential entry. Depending on the virus, additional pathway(s) can also be seeds, pollen and/or vector(s). Most of the viruses categorised here are known to infect only one or few plant genera, but some of them have a wide host range, thus extending the possible entry pathways. Grapevine yellow speckle viroid 2, blueberry leaf mottle virus, grapevine Ajinashika virus, grapevine Anatolian ringspot virus, grapevine berry inner necrosis virus, grapevine deformation virus, grapevine fabavirus, grapevine red blotch virus, grapevine stunt virus, grapevine Tunisian ringspot virus, grapevine vein‐clearing virus, temperate fruit decay‐associated virus, peach rosette mosaic virus, tobacco ringspot virus, tomato ringspot virus meet all the criteria evaluated by to qualify as potential Union quarantine pests ( s). With the exception of impact for the territory, on which the Panel was unable to conclude, blackberry virus S, grapevine geminivirus A, grapevine leafroll‐associated virus 7, grapevine leafroll‐associated virus 13, grapevine satellite virus, grapevine virus E, grapevine virus I, grapevine virus J, grapevine virus S, summer grape enamovirus, summer grape latent virus satisfy all the other criteria to be considered as potential Union s. Australian grapevine viroid, grapevine cryptic virus 1, grapevine endophyte endornavirus and wild vitis virus 1 do not meet all the criteria evaluated by to be regarded as potential Union s because they are not known to cause an impact on . For several viruses, especially those recently discovered, the categorisation is associated with high uncertainties mainly because of the absence of data on their biology, distribution and impact. Since this opinion addresses specifically non‐ viruses, in general these viruses do not meet the criteria assessed by to qualify as a potential Union regulated non‐quarantine pests.