6 Specify the host plant species (for pests directly affecting plants) or suitable habitats (for non parasitic plants) present in the PRA area.
Grasslands, forests, wetlands, riverbanks/canal sides, rail/roadsides, and urban areas.
7. Specify the pest distribution
EPPO region: Armenia (native), Azerbaidzhan, Russia (Karachay-Cherkessia, Kabardino-Balkaria, North Ossetia, Ingushetia, Chechnya, Dagestan and possibly Black Sea coast), Belarus, Estonia, Germany, Hungary, Latvia, Lithuania, Poland, Russia (Central and Northern), Ukraine (introduced).
8. Is the organism clearly a single taxonomic entity and can it be adequately distinguished from other entities of the same rank?
There have been confusions between Heracleum mantegazzianum, H. sosnowskyi and H. persicum, but recent genetical studies highlighted the fact that there are three distinct tall Heracleum species invading Europe. A close genetic relationship between the three invasive Heracleum species in Europe was also found (Jahodová et al., 2007).
9. Even if the causal agent of particular symptoms has not yet been fully identified, has it been shown to produce consistent symptoms and to be transmissible?
10. Is the organism in its area of current distribution a known pest (or vector of a pest) of plants or plant products?
11. Does the organism have intrinsic attributes that indicate that it could cause significant harm to plants?
12 Does the pest occur in the PRA area?
13. Is the pest widely distributed in the PRA area?
H. sosnowskyi is considered moderately widely distributed in the EPPO region.
14. Does at least one host-plant species (for pests directly affecting plants) or one suitable habitat (for non parasitic plants) occur in the PRA area (outdoors, in protected cultivation or both)?
15. If a vector is the only means by which the pest can spread, is a vector present in the PRA area? (if a vector is not needed or is not the only means by which the pest can spread go to 16)
A vector is not needed.
16. Does the known area of current distribution of the pest include ecoclimatic conditions comparable with those of the PRA area or sufficiently similar for the pest to survive and thrive (consider also protected conditions)?
17. With specific reference to the plant(s) or habitats which occur(s) in the PRA area, and the damage or loss caused by the pest in its area of current distribution, could the pest by itself, or acting as a vector, cause significant damage or loss to plants or other negative economic impacts (on the environment, on society, on export markets) through the effect on plant health in the PRA area?
Damages on agriculture, health and habitats are mainly recorded in Latvia.
18. This pest could present a risk to the PRA area.
19. The pest does not qualify as a quarantine pest for the PRA area and the assessment for this pest can stop.