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Mountain Pine Beetle

Updated 2020-09-11
  • Beetle-killed forests

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    The gray trees in this picture are lodgepole pine killed by mountain pine beetle. This picture was taken near Willow Creek Pass in north-central Colorado in 2012, approximately ten years after the outbreak began in this area.
    Beetle-killed forests
  • Mountain Pine Beetle

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    A dead mountain pine beetle at the base of a tree. The beetles are about the size of a grain of rice.
    Mountain Pine Beetle
  • Pine beetle pushed out by tree
  • New trees in beetle-plagued forests
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