Publication Date:
2020
abstract:
The Panel on Plant Health of EFSA conducted a pest categorisation of 17 viruses of Rubus L. that were
previously classified as either non-EU or of undetermined standing in a previous opinion. These
infectious agents belong to different genera and are heterogeneous in their biology. Blackberry virus X,
blackberry virus Z and wineberry latent virus were not categorised because of lack of information while
grapevine red blotch virus was excluded because it does not infect Rubus. All 17 viruses are efficiently
transmitted by vegetative propagation, with plants for planting representing the major pathway for
entry and spread. For some viruses, additional pathway(s) are Rubus seeds, pollen and/or vector(s).
Most of the viruses categorised here infect only one or few plant genera, but some of them have a
wide host range, thus extending the possible entry pathways. Cherry rasp leaf virus, raspberry latent
virus, raspberry leaf curl virus, strawberry necrotic shock virus, tobacco ringspot virus and tomato
ringspot virus meet all the criteria to qualify as potential Union quarantine pests (QPs). With the
exception of impact in the EU territory, on which the Panel was unable to conclude, blackberry
chlorotic ringspot virus, blackberry leaf mottle-associated virus, blackberry vein banding-associated
virus, blackberry virus E, blackberry virus F, blackberry virus S, blackberry virus Y and blackberry yellow
vein-associated virus satisfy all the other criteria to be considered as potential QPs. Black raspberry
cryptic virus, blackberry calico virus and Rubus canadensis virus 1 do not meet the criterion of having
a potential negative impact in the EU. For several viruses, the categorisation is associated with high
uncertainties, mainly because of the absence of data on biology, distribution and impact. Since the
opinion addresses non-EU viruses, they do not meet the criteria to qualify as potential Union regulated
non-quarantine pests.
Iris type:
01.01 Articolo in rivista
Keywords:
European Union; pest risk; plant health; plant pest; quarantine; blackberry virus; raspberry virus
List of contributors:
Bosco, Domenico; Ferilli, Franco; DI SERIO, Francesco; Chiumenti, Michela; Rubino, Luisa; Minafra, Angelantonio
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