| Image |
Descriptor |
Description |
| 0355015 |
Infestation |
|
| 0488055 |
Infestation |
|
| 0718057 |
Infestation |
|
| 1276001 |
Infestation |
Ovisacs on the underside of a branch |
| 1276002 |
Life Cycle |
Adult and eggs inside an ovisac |
| 1276003 |
Adult(s) |
With wax removed |
| 1276004 |
Infestation |
Recently infested |
| 1276005 |
Control |
Tree removal |
| 1293001 |
Infestation |
Adelgids feed near the base of hemlock needles. Photo taken in lab at Clemson University - sample from Oconee County, SC. |
| 1293002 |
Infestation |
Photo taken in lab at Clemson University - sample from Oconee County, SC. |
| 1293003 |
Infestation |
Pale crown appearance with no new growth indicate this tree is under severe attack from Hemlock Woolly Adelgids. Photo taken in Rabun County, Georgia |
| 1293010 |
Infestation |
Crown dieback on hemlock is the result of at least 2 years of attack from hemlock woolly adelgid. Photo taken in Rabun County, Georgia. |
| 1294054 |
Control |
An insecticidal soap used to treat infested hemlocks. Great Smoky Mountains NP, TN |
| 1294055 |
Control |
An insecticidal soap used to treat infested hemlocks. Great Smoky Mountains NP, TN |
| 1344002 |
Control |
Spraying insecticidal soap |
| 1344003 |
Control |
Spraying insecticidal soap |
| 1344005 |
Control |
Spraying insecticidal soap |
| 1344006 |
Control |
Spraying insecticidal soap |
| 1344008 |
Control |
Spraying insecticidal soap |
| 1344010 |
Control |
Spraying insecticidal soap |
| 1344011 |
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 |
| 1344017 |
Survey |
Tree climbing old growth hemlocks to check for adelgids and predatory beetles |
| 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. |
| 1344024 |
Control |
Spraying insecticidal soap using a slip-on unit on an ATV |
| 1344025 |
Control |
Spraying insecticidal soap |
| 1344028 |
Equipment |
Spray Unit used for hemlock trees, up to around 80 ft. tall. |
| 1344045 |
Control |
Stem injections of a systemic insecticide |
| 1344047 |
Control |
Tree injection |
| 1344053 |
Control |
Soil injection of imidacloprid |
| 1344056 |
Control |
Soil drenching hemlocks with imidacloprid |
| 1344057 |
Control |
Soil drenching hemlocks with imidacloprid |
| 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 |
| 1344080 |
Equipment |
ATV spray unit used for treating hemlocks with soap |
| 1344121 |
Control |
Tree IV for systemic insecticide |
| 1344125 |
Control |
Tree IV |
| 1344127 |
Control |
Tree IV (showing that in can be safely used close to water, where no other chemical treatment can be used) |
| 1344137 |
Control |
Tree IV plug that remains in place once injection treatment is finished |
| 1344138 |
Control |
Tree IV injector |
| 1344143 |
Control |
Tree IV |
| 1344146 |
Control |
Tree IV |
| 1344147 |
Control |
Tree IV |
| 1344148 |
Control |
Tree IV |
| 1344150 |
Control |
Marking a hemlock that has been treated by Tree IV |
| 1346067 |
Infestation |
|
| 1346068 |
Infestation |
|
| 1346069 |
Infestation |
|
| 1346070 |
Infestation |
|
| 1346071 |
Infestation |
|
| 1346072 |
Infestation |
|
| 1380192 |
Infestation |
|
| 1380193 |
Infestation |
|
| 1380194 |
Adult(s) |
|
| 1380195 |
Infestation |
|
| 1380196 |
Infestation |
|
| 1380197 |
Infestation |
|
| 1510011 |
Adult(s) |
closeup |
| 1510054 |
Equipment |
Ground spray equipment used for control of balsam woolly adelgid, Mt. Mitchell State Park, NC, ca 1961. |
| 1520081 |
Infestation |
|
| 1520082 |
Infestation |
|
| 1520083 |
Infestation |
HWA on hemlock needles |
| 1520084 |
Damage |
HWA on hemlock needles |
| 1523054 |
Adult(s) |
|
| 1626009 |
Infestation |
Underneath the wax, adelgids resemble tiny, plump aphids without cornicles. |
| 1748045 |
Infestation |
|
| 1748046 |
Infestation |
|
| 1748047 |
Infestation |
|
| 1748048 |
Infestation |
thinning of crown |
| 1748049 |
Infestation |
|
| 2110026 |
Infestation |
Photo taken in Rabun County, Georgia |
| 2110027 |
Infestation |
Photo taken in Rabun County, Georgia |
| 2110028 |
Infestation |
Photo taken in Rabun County, Georgia |
| 2110029 |
Infestation |
Photo taken in Rabun County, Georgia |
| 2110030 |
Infestation |
Photo taken in Rabun County, Georgia |
| 2110031 |
Infestation |
Photo taken in Rabun County, Georgia |
| 2110033 |
Infestation |
Photo taken in Rabun County, Georgia |
| 2110034 |
Infestation |
Photo taken in Rabun County, Georgia |
| 2110035 |
Infestation |
Photo taken in Rabun County, Georgia |
| 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 |
| 3225077 |
Adult(s) |
|
| 5017089 |
Biological Control |
Biological Control Beetle release in Pennsylvania |
| 5018069 |
Infestation |
|
| 5018072 |
Feature(s) |
no new growth |
| 5018073 |
Immature(s) |
crawler |
| 5018074 |
Larva(e) |
Newly settled larvae |
| 5018075 |
Infestation |
|
| 5018076 |
Infestation |
|
| 5018078 |
Egg(s) |
|
| 5022094 |
Control |
suppression, 2005 |
| 5022095 |
Control |
|
| 5022096 |
Control |
|
| 5023002 |
Control |
|
| 5027034 |
Control |
treatment with Ima-Jet system using imidachloprid |
| 5125061 |
Damage |
Showing damage resulting from 2-3 year old infestation. See image #1346067 for image of 1 year old infestation. |
| 5125062 |
Damage |
Showing damage resulting from a 2-3 year old infestation. See image #1346067 for image of 1 year old infestation. |
| 5125063 |
Damage |
Damage resulting from a 2-3 year old infestation. |
| 5125064 |
Damage |
Showing sparse, shortened foliage. |
| 5125065 |
Damage |
Showing damage resulting from 2-3 year old infestation. |
| 5125066 |
Damage |
Showing damage resulting from 2-3 year old infestation. |
| 5395117 |
Egg(s) |
|
| 5395118 |
Egg(s) |
|
