Narrow Results by:

Subject Specific Filters:

All Subject Filters are in use

Image Specific Filters:

  1. Descriptor:           (show all)

    Infestation (44)
    Damage (14)
    Symptoms (6)
    Egg(s) (4)
    Adult(s) (3)

  1. Commodity:         (show all)

    Conifer (69)
    Trees (8)
    Misc. Pests (4)
    Christmas Trees (2)
    Tree Risk Assesment (2)

Image Setting:

Field (52)
Museum (2)
Laboratory (2)

  1. View:                     

    Close-up (3)
    Aerial (1)
    Long Section (1)

Person in Image:

Yes (1)

  1. Author:                  (show all)

    Robert L. Anderson (21)
    Elizabeth Willhite (8)
    USDA Forest Service - Region 8 - Southern Archive (7)
    Scott Tunnock (6)
    Joseph O'Brien (5)

Sizes Available:

5 sizes(69)
4 sizes(5)
3 sizes(4)

Orientation:

Landscape (50)
Portrait (28)

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."
Remove Filters: Insects(X) Adelgidae(X) Adelges(X) Terminal, Tip, Stem and Shoot Insects(X)
78 Images of 4 Subjects View Subject List View Image Details View Thumbnails

first prev Page: next last Display:

Image Subject Name Scientific Name Description
5485677 hemlock woolly adelgid Adelges tsugae Hemlock mortality caused by Hemlock Woolly Adelgid (Adelges tsugae). 
5485663 hemlock woolly adelgid Adelges tsugae
5488009 hemlock woolly adelgid Adelges tsugae
5476127 hemlock woolly adelgid Adelges tsugae
1593004 cooley spruce gall adelgid Adelges cooleyi Wool-covered adelgids on their alternate host, Douglas-fir. 
1593055 eastern spruce gall adelgid Adelges abietis Older galls
1593005 eastern spruce gall adelgid Adelges abietis Odler galls caused by eastern spruce gall adelgid
0795072 balsam woolly adelgid Adelges piceae crawler
1748047 hemlock woolly adelgid Adelges tsugae
1748046 hemlock woolly adelgid Adelges tsugae
2254012 cooley spruce gall adelgid Adelges cooleyi mass
2254013 cooley spruce gall adelgid Adelges cooleyi aphid mass covered with white waxy coating,
2253068 balsam woolly adelgid Adelges piceae note white appearance on tree bole
2252063 cooley spruce gall adelgid Adelges cooleyi on young douglas fir
1748049 hemlock woolly adelgid Adelges tsugae
1241564 cooley spruce gall adelgid Adelges cooleyi Galls on branch tips contain developing nymphs. Opened galls are red-brown, turning gray with age, and resemble small cones.
1241748 balsam woolly adelgid Adelges piceae
1468270 balsam woolly adelgid Adelges piceae
1276003 hemlock woolly adelgid Adelges tsugae With wax removed
0795076 balsam woolly adelgid Adelges piceae
1276001 hemlock woolly adelgid Adelges tsugae Ovisacs on the underside of a branch
1587167 cooley spruce gall adelgid Adelges cooleyi
0488049 balsam woolly adelgid Adelges piceae
1748037 balsam woolly adelgid Adelges piceae
2253069 balsam woolly adelgid Adelges piceae note characteristic white of tree bole
0590100 balsam woolly adelgid Adelges piceae stand mortality at Mt. Mitchell
0590098 balsam woolly adelgid Adelges piceae stand mortality at Mt. Mitchell
1587070 balsam woolly adelgid Adelges piceae Balsam woolly adelgid on subalpine fir, infestation and mortality at edge of avalanche chute
1587068 balsam woolly adelgid Adelges piceae
1587074 balsam woolly adelgid Adelges piceae abnormal crown
1587075 balsam woolly adelgid Adelges piceae abnormal crown
1587073 balsam woolly adelgid Adelges piceae abnormal crown
1587072 balsam woolly adelgid Adelges piceae abnormal crown
1587165 hemlock woolly adelgid Adelges tsugae Hemlock woolly adelgids on containerized western hemlock seed orchard in greenhouse
0355015 hemlock woolly adelgid Adelges tsugae
2253020 balsam woolly adelgid Adelges piceae
1748036 balsam woolly adelgid Adelges piceae
1748043 balsam woolly adelgid Adelges piceae
5042006 eastern spruce gall adelgid Adelges abietis Galls on white spruce
1520081 hemlock woolly adelgid Adelges tsugae
1520082 hemlock woolly adelgid Adelges tsugae
1520083 hemlock woolly adelgid Adelges tsugae HWA on hemlock needles
1520084 hemlock woolly adelgid Adelges tsugae HWA on hemlock needles
1510050 balsam woolly adelgid Adelges piceae Balsam wooly adelgid killed frazier fir
1510051 balsam woolly adelgid Adelges piceae Gouting of Frasier fir from balsam wooly adelgid
1510053 balsam woolly adelgid Adelges piceae Balsam wooly adelgid infested fir bole
1510086 balsam woolly adelgid Adelges piceae Balsam wooly adelgid caused mortality
2254044 cooley spruce gall adelgid Adelges cooleyi
3036038 balsam woolly adelgid Adelges piceae Parking lot at Mt. Mitchel from visitor tower
5050024 cooley spruce gall adelgid Adelges cooleyi
5050025 cooley spruce gall adelgid Adelges cooleyi
5050026 cooley spruce gall adelgid Adelges cooleyi
5050027 cooley spruce gall adelgid Adelges cooleyi
2181084 balsam woolly adelgid Adelges piceae
2181085 balsam woolly adelgid Adelges piceae
5027034 hemlock woolly adelgid Adelges tsugae treatment with Ima-Jet system using imidachloprid
1468263 cooley spruce gall adelgid Adelges cooleyi
1276002 hemlock woolly adelgid Adelges tsugae Adult and eggs inside an ovisac
1276004 hemlock woolly adelgid Adelges tsugae Recently infested
1276005 hemlock woolly adelgid Adelges tsugae Tree removal
1748044 balsam woolly adelgid Adelges piceae
1748041 balsam woolly adelgid Adelges piceae
1748042 balsam woolly adelgid Adelges piceae
1748040 balsam woolly adelgid Adelges piceae
1748039 balsam woolly adelgid Adelges piceae
1510011 hemlock woolly adelgid Adelges tsugae closeup
0795074 balsam woolly adelgid Adelges piceae on Richland balsam at Mt. Mitchell
0590099 balsam woolly adelgid Adelges piceae stand mortality at Mt. Mitchell
0364001 balsam woolly adelgid Adelges piceae stand mortality at Mt. Mitchell
2252066 balsam woolly adelgid Adelges piceae close-up
2254052 balsam woolly adelgid Adelges piceae on subalpine fir
2254041 cooley spruce gall adelgid Adelges cooleyi galls on spruce
1748038 balsam woolly adelgid Adelges piceae
1748045 hemlock woolly adelgid Adelges tsugae
1748048 hemlock woolly adelgid Adelges tsugae thinning of crown
1678062 balsam woolly adelgid Adelges piceae gouting damage
1678065 cooley spruce gall adelgid Adelges cooleyi gall on engelmann spruce
0488055 hemlock woolly adelgid Adelges tsugae

Page: