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Phloeosinus spp. (Scolytidae)
cedar bark beetle
Adults:
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Reddish-brown, often shiny, 2.4 mm long.
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Larvae:
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Typical scolytid larvae.
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Damage:
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Usually only attack weakened, dying or felled trees. Newly emerged adults may feed on twigs of healthy trees, hollowing them out and killing them, prior to constructing egg galleries.
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Principal Hosts:
Cedars (Thuja) are attacked by almost no other bark beetles, so any species found working on the inner bark of cedar-like trees (not Cedrus) is almost certain to be a species of Phloeosinus.
Economic Importance:
As a general rule these beetles are not aggressive in their attack. Occasionally, however, they become sufficiently numerous and aggressive to attack and kill apparently healthy trees.
References and Links:
FC: 366, 367.
See HForest.
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