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    Bark Beetles and Phloem Feeding Insects (6)

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USDA Forest Service

USDA Forest Service

The U.S. Department of Agriculture Forest Service is a Federal agency that manages public lands in national forests and grasslands. The Forest Service is also the largest forestry research organization in the world, and provides technical and financial assistance to state and private forestry agencies. Gifford Pinchot, the first Chief of the Forest Service, summed up the purpose of the Forest Service—"to provide the greatest amount of good for the greatest amount of people in the long run."
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26 Images of 7 Subjects View Subject List View Image Details View Thumbnails

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Image Subject Name Scientific Name Description
2143057 bark beetles branch flagging; pinyon twig beetles (Pityophthorus spp, Pityogenes spp., or Pityoborus spp.)
2141071 Douglas-fir beetle Dendroctonus pseudotsugae
2143058 western balsam bark beetle Dryocoetes confusus
2141070 Douglas-fir beetle Dendroctonus pseudotsugae
2141098 flatheaded or metallic wood borer larval feeding at burn margin
2142004 pine engraver Ips pini slash pile post-thin
2142005 pine engraver Ips pini mass funnel trapping
2142006 pine engraver Ips pini funnel trap
2142007 pine engraver Ips pini funnel trap
2142008 pine engraver Ips pini frass
2142009 pine engraver Ips pini frass on windthrown tree
2142043 cedar bark beetles Phloeosinus spp.
2142044 cedar bark beetles Phloeosinus spp.
2142051 mountain pine beetle Dendroctonus ponderosae fading (red) crowns
2142052 mountain pine beetle Dendroctonus ponderosae pitch tubes
2142053 mountain pine beetle Dendroctonus ponderosae fading crowns; current-year attacks; dwarf mistletoe infections in lower branches
2142054 mountain pine beetle Dendroctonus ponderosae pitch-out
2142056 mountain pine beetle Dendroctonus ponderosae
2142057 mountain pine beetle Dendroctonus ponderosae adult female in gallery with eggs
2142058 mountain pine beetle Dendroctonus ponderosae adult female in gallery with eggs
2142060 mountain pine beetle Dendroctonus ponderosae verbenone pouch
2142059 mountain pine beetle Dendroctonus ponderosae verbenone pouch
2142061 mountain pine beetle Dendroctonus ponderosae sanitation of infested trees at recreation site
2142062 mountain pine beetle Dendroctonus ponderosae verbenone pouch  
2142063 mountain pine beetle Dendroctonus ponderosae gallery with eggs
2143056 cedar bark beetles Phloeosinus spp. frass holes and shrunken bark

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