Information on the distribution of the four-eyed fir bark beetle Polygraphus proximus in the plantings of the Sverdlovsk region, based on the results of surveys in 2025
Keywords:
invasion, four-eyed fir bark beetle, Sverdlovsk region, Siberian fir, monitoringAbstract
The spread of the dangerous pest of coniferous plants, the four-eyed fir bark beetle Polygraphus proximus, beyond its historical range, poses a serious threat to fir plantations in the regions of invasion. This research provides information on the distribution of the species in the Sverdlovsk Province based on the results of surveys conducted in 2025. The increase in the number of locations where the four-eyed fir bark beetle was found indicates that the species has successfully adapted almost to the entire territory of the Sverdlovsk Province. Currently, the main foci are concentrated in the south-west of the region. The research results indicate that since the discovery of the invader in the Sverdlovsk region in 2023, the increase in the area of foci with the death of fir plantations has been very intense.
