European spruce bark beetle - Alchetron, the free social encyclopedia
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2014年7月16日
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European spruce bark beetles holes on old spruce stem. Barkbeetle tunnels and tracks on tree bole. Catastrophic forest die-back concept. Handheld shot. Diseased tree attacked by insects. Wormholes
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Wood large piles of cut tree trunks, round logs. Spruce forests infested and attacked by European spruce bark beetle pest Ips typographus, clear cut calamity caused by bark beetle due global warming
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2022年1月14日
nps.gov
Bark beetle pest Ips typographus, spruce and bast tree infested and attacked by the European spruce, making their way in wood larva and larvae, clear cut calamity, caterpillar dead trees
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