Assignment

It is suggested that Ulmus spp. should be regulated as a “High Risk Plant” in the new PHR, due to its association with Saperda tridentata, and that it should be regulated through a temporary import ban. We were requested by the Swedish board of Agriculture to perform a quick literature search on what is known about the risk of introduction of S. tridentata through trade of wood as well as if this pest may be a significant threat for Sweden/EU. If no previous risk assessments have been done for S. tridentata we were also requested to estimate how long time it would require to perform an express PRA for this species.