alamity bark wood beetle pest ips typographus infestation, spruce and bast tree infested attacked by european spruce, making way

alamity attacked bark bast beetle burrow bushgrass calamagrostis calamity caused chop closeup cut cutting cycle dead deforestation detail ecological environment epigejos europe european forests hole infestation infested insects ips larva larvae logging making opening part pest phloem planting pupa salvage scolytinae small smallreed spruce stands stump tree trees typographus way wood