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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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Image Subject Name Scientific Name Description
2166053 Sirex woodwasp Sirex noctilio resin beads; characteristic of attack
2166054 Ichneumonid wasp Rhyssa spp. two parasitoids of Sirex noctilio; Rhyssa persuasoria and Rhyssa lineolata
5007024 Sirex woodwasp Sirex noctilio
5007025 Sirex woodwasp Sirex noctilio resin beads; characteristic of attack
5007026 Sirex woodwasp Sirex noctilio
2166055 Sirex woodwasp Sirex noctilio resin beads; characteristic of attack
2166052 Sirex woodwasp Sirex noctilio close-up of resin beads; characteristic of attack

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