Report of a short PRA produced in the framework of the EPPO Study of the risk of forest pests occurring on the territory of the former USSR for the western part of the EPPO region. 

This document supported the addition of this pest to the EPPO A2 list.

T. gracilicorne has been shown to be transported in wood consignments from Siberia and it has already been introduced into an area outside its natural range. It should be able to establish in a large part of the PRA area where the climate would be suitable and host plants would be available. It could damage wood and could kill trees of Pinus sylvestris the most important forest tree species in the PRA area. Its effect could be even greater if it proved to be able to attack the species of Picea, Abies and Larix that predominate in the PRA area.