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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Subject	Scientific Name	Images
ash plant bug	Tropidosteptes amoenus	1
black pineleaf scale	Dynaspidiotus californica	2
black turpentine beetle	Dendroctonus terebrans	1
boxelder bug	Boisea trivittata	4
cattle	Bos spp.	1
cottonwood leaf beetle	Chrysomela scripta	1
Douglas-fir tussock moth	Orgyia pseudotsugata	3
elm spanworm	Ennomos subsignaria	1
European pine shoot moth	Rhyacionia buoliana	1
forest tent caterpillar	Malacosoma disstria	1
fusiform rust	Cronartium quercuum f.sp. fusiforme	3
giant bark aphid	Longistigma caryae	1
gouty pitch midge	Cecidomyia piniinopis	1
gypsy moth	Lymantria dispar	10
hackberry emperor	Asterocampa celtis	1
hemlock woolly adelgid	Adelges tsugae	1
lace bugs	Corythucha spp.	1
larch casebearer	Coleophora laricella	1
leafcurl ash aphid	Meliarhizophagus fraxinifolii	2
locust borer	Megacyllene robiniae	1
mountain pine beetle	Dendroctonus ponderosae	3
oak leaf aphids	Myzocallis spp.	1
oak skeletonizer	Bucculatrix ainsliella	1
pine butterfly	Neophasia menapia	1
pine infesting sawflies	Neodiprion fulviceps	2
pinyon needle scale	Matsucoccus acalyptus	1
pinyon sawfly	Neodiprion edulicolus	1
poplar borer	Saperda calcarata	4
poplar leaf aphid	Chaitophorus populicola	1
southern pine beetle	Dendroctonus frontalis	3
southwestern tent caterpillar	Malacosoma incurvum	2
spruce budworm	Choristoneura fumiferana	3
spruce needleminer	Taniva albolineana	1
spruce spider mite	Oligonychus ununguis	2
stalactiform blister rust	Cronartium coleosporioides	3
sycamore leaf beetle	Neochlamisus platani	1
Texas leafcutting ant	Atta texana	1
western spruce budworm	Choristoneura freemani	3
western tent caterpillar	Malacosoma californicum	1
whitemarked tussock moth	Orgyia leucostigma	1
woolly alder aphid	Prociphilus tessellatus	1

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USDA Forest Service