Overview of the Current Secondary Range of the Four-Eyed Fir Bark Beetle (Polygraphus proximus Blandford) in the Russian Federation

Current data on the existing secondary range of the four-eyed fir bark beetle Polygraphus proximus in Russia, a dangerous invasive pest of fir stands, are presented. The alien species was found on the territory of 18 administrative subjects of the Russian Federation, from Moscow and Moscow oblast in...

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