hemlock woolly adelgid
Adelges tsugae Annand

Narrow Results by:

Image Specific Filters:

  1. Descriptor:           (show all)

    Infestation (63)
    Control (39)
    Damage (14)
    Adult(s) (11)
    Egg(s) (6)

  1. Commodity:         (show all)

    Conifer (138)
    Trees (6)
    Misc. Pests (4)
    Hardwood (3)
    General Entomology (2)

Image Setting:

Field (99)
Laboratory (9)

  1. View:                     

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

Person in Image:

Yes (1)

  1. Author:                  (show all)

    Great Smoky Mountains National Park Resource Management Archive (38)
    Chris Evans (18)
    James Johnson (13)
    Pennsylvania Department of Conservation and Natural Resources - Forestry Archive (12)
    William M. Ciesla (12)

Sizes Available:

5 sizes(99)
4 sizes(40)
3 sizes(6)

Orientation:

Landscape (110)
Portrait (35)

first prev Page: next last Display:

Image Descriptor Description
5485677 Damage Hemlock mortality caused by Hemlock Woolly Adelgid (Adelges tsugae). 
5485663 Egg(s)
5488009 Cocoon(s)
5488707 Damage hemlock mortality caused by hemlock wooly adelgid in the Great Smoky Mountains
5471648 Infestation
5471638 Infestation
5471641 Infestation
5471642 Infestation
5471643 Infestation
5471644 Infestation
5471646 Infestation
5471647 Infestation
5471649 Infestation
5445870 Adult(s)
5476127 Egg(s)
5445869 Infestation
5445873 Egg(s) 03/2011; egg mass; immature crawler emerging from egg mass; settled crawlers to the right (black with white fringe).
5018073 Nymph(s) crawler
5446333 Damage
5449455 Adult(s) Settled on host plant
5449456 Adult(s)
5449457 Adult(s)
5449453 Adult(s) An adult hemlock woolly adelgid, Adelges tsugae, removed from its host plant and cleaned for imaging. Host: Tsuga canadensis
5449454 Adult(s) Host: Tsuga canadensis
1748047 Infestation
1748046 Infestation
1293002 Infestation Photo taken in lab at Clemson University - sample from Oconee County, SC.
3225077 Adult(s)
1748049 Infestation
1344005 Control Spraying insecticidal soap
5125064 Damage Showing sparse, shortened foliage.
5125066 Damage Showing damage resulting from 2-3 year old infestation.
5125065 Damage Showing damage resulting from 2-3 year old infestation.
2110035 Infestation Photo taken in Rabun County, Georgia
1293001 Infestation Adelgids feed near the base of hemlock needles. Photo taken in lab at Clemson University - sample from Oconee County, SC.
1626009 Infestation Underneath the wax, adelgids resemble tiny, plump aphids without cornicles.
1276003 Adult(s) With wax removed
2110026 Infestation
5427668 Infestation
1276001 Infestation Ovisacs on the underside of a branch
1380194 Adult(s)
2110029 Infestation
1346072 Infestation
1346069 Infestation
1346071 Infestation
5125061 Damage Showing damage resulting from 2-3 year old infestation. See image #1346067 for image of 1 year old infestation.
1346067 Infestation
1587165 Infestation Hemlock woolly adelgids on containerized western hemlock seed orchard in greenhouse
1344137 Control Tree IV plug that remains in place once injection treatment is finished
0355015 Infestation
1346068 Infestation
1344125 Control Tree IV
5125063 Damage Damage resulting from a 2-3 year old infestation.
1344127 Control Tree IV (showing that in can be safely used close to water, where no other chemical treatment can be used)
5125062 Damage Showing damage resulting from a 2-3 year old infestation. See image #1346067 for image of 1 year old infestation.
1346070 Infestation
1344047 Control Tree injection
1344011 Control Spraying insecticidal soap
1380196 Infestation
1380197 Infestation
1380195 Infestation
1380193 Infestation
1293010 Infestation Crown dieback on hemlock is the result of at least 2 years of attack from hemlock woolly adelgid.
1380192 Infestation
1293003 Infestation Pale crown appearance with no new growth indicate this tree is under severe attack from Hemlock Woolly Adelgids.
2110034 Infestation
2110027 Infestation
2110033 Infestation
2110030 Infestation
2110028 Infestation
2110031 Infestation
1344017 Survey Tree climbing old growth hemlocks to check for adelgids and predatory beetles
1344121 Control Tree IV for systemic insecticide
5391811 Damage
5391809 Infestation
5391810 Infestation
5395117 Egg(s)
5395118 Egg(s)
1523054 Adult(s)
0718057 Infestation
1520081 Infestation
1520082 Infestation
1520083 Infestation HWA on hemlock needles
1520084 Damage HWA on hemlock needles
2167010 Infestation Decline and mortality caused by hemlock wolly adelgid,
2167011 Infestation Decline and mortality
2167012 Infestation Decline and mortality,
2167013 Infestation Decline and mortality
2167014 Infestation
2167015 Infestation Decline and mortality
2167016 Infestation Infested foliage
2167017 Infestation Infested foliage
2167018 Damage Infested foliage
2167019 Damage Infested foliage,
2167023 Damage Infested foliage
5022094 Control suppression, 2005
5022095 Control
5022096 Control
5023002 Control
5017089 Biological Control Biological Control Beetle release in Pennsylvania
5018076 Infestation
5018078 Egg(s)
5018074 Larva(e) Newly settled larvae
5018075 Infestation
5018069 Infestation
5018072 Feature(s) no new growth
5027034 Control treatment with Ima-Jet system using imidachloprid
1510054 Equipment Ground spray equipment used for control of balsam woolly adelgid, Mt. Mitchell State Park, NC, ca 1961.
1344024 Control Spraying insecticidal soap using a slip-on unit on an ATV
1344053 Control Soil injection of imidacloprid
1344056 Control Soil drenching hemlocks with imidacloprid
1344057 Control Soil drenching hemlocks with imidacloprid
1344045 Control Stem injections of a systemic insecticide
1294054 Control An insecticidal soap used to treat infested hemlocks. Great Smoky Mountains NP, TN
1344143 Control Tree IV
1344146 Control Tree IV
1344147 Control Tree IV
1344148 Control Tree IV
1276002 Life Cycle Adult and eggs inside an ovisac
1276004 Infestation Recently infested
1276005 Control Tree removal
1344080 Equipment ATV spray unit used for treating hemlocks with soap
1344150 Control Marking a hemlock that has been treated by Tree IV
1344061 Control Marking a hemlock that has been treated by soil drenching
1344064 Control Raking leaf litter and loam away from a hemlock, so it can be treated by soil drenching
1344065 Control Soil injection of imidacloprid around hemlock
1344025 Control Spraying insecticidal soap
1344028 Equipment Spray Unit used for hemlock trees, up to around 80 ft. tall.
1344138 Control Tree IV injector
1344018 Control Using a backpack sprayer and insecticidal soap for hemlocks
1344020 Equipment Slip-on spray unit used to treat hemlocks up to around 50 ft.
1344002 Control Spraying insecticidal soap
1344003 Control Spraying insecticidal soap
1344012 Control Soil drenching with imidicloprid, a systemic insecticide
1344013 Control Marking a hemlock with spray paint, to signify that it has been treated with imidacloprid
1344014 Control Taking the DBH of a hemlock, to calculate how much imidacloprid it will take to treat it.
1344016 Survey Tree climbing old growth hemlocks to check for adelgids and predatory beetles
1344006 Control Spraying insecticidal soap
1344008 Control Spraying insecticidal soap
1344010 Control Spraying insecticidal soap
1294055 Control An insecticidal soap used to treat infested hemlocks. Great Smoky Mountains NP, TN
1510011 Adult(s) closeup
1748045 Infestation
1748048 Infestation thinning of crown
0488055 Infestation

Page: