| 5475121 |
exhaust |
|
Exhaust damage from a vactor truck idling nearby. You can see the restored trench between the cones. |
| 5487887 |
exhaust |
|
Needle browning from truck exhaust injury |
| 5395575 |
grade change |
|
before grade change |
| 5377154 |
grade change |
|
grade change well over edge of root zone |
| 5377145 |
utilities |
|
electrical hazard |
| 5377123 |
air pollutants |
|
chronic stress caused by factory smoke |
| 5377099 |
human caused injury |
|
tree being injured |
| 5377101 |
human caused injury |
|
now showing decline from past injuries |
| 5377090 |
tree pit |
|
trees along street that have outgrown their locations |
| 5377045 |
ISA Publications |
|
|
| 5376981 |
construction |
|
Soil trenching/tunneling during construction. Possible root loss. Circle depicts dripline. |
| 1505090 |
human caused injury |
|
Art - People damage to trees |
| 5478333 |
imbedded objects |
|
|
| 5478332 |
imbedded objects |
|
How not to hang a tree swing |
| 5388268 |
construction |
|
A new sidewalk is layed right next to trees. |
| 5388287 |
dieback |
|
|
| 5476838 |
imbedded objects |
|
|
| 5476837 |
imbedded objects |
|
|
| 5443536 |
human caused injury |
|
names carved in outer bark on paper birch
|
| 5454971 |
|
|
|
| 5454970 |
|
|
|
| 5454969 |
|
|
|
| 5454879 |
|
|
|
| 5424484 |
tree protection zone |
|
A driveway delineated through a wooded lot during construction. Woodchips used to reduce soil compaction. |
| 5424485 |
tree protection zone |
|
An area delineated around a wooded section for protection during construction. Piles of woodchips to be used to reduce soil compaction. |
| 5424487 |
tree protection zone |
|
Close-up of orange fencing and woodchips to reduce injury due to construction practices. |
| 5424389 |
construction |
|
Bulldozer causing two main problems - removing roots and soil and compacting soil. |
| 5424395 |
tree protection zone |
|
Close-up of orange fencing used to delineate areas to be preserved during construction. |
| 5408049 |
root pruning |
|
Tree roots had grown over and under the sidewalk. When the sidewalk was replaced, the city cut off the roots. |
| 5408766 |
root pruning |
|
Tree roots had grown over and under the sidewalk. When the sidewalk was replaced, the city cut off the roots. |
| 5408764 |
utilities |
|
Utility lines conflicting with tree |
| 5408047 |
root pruning |
|
Tree roots had grown over and under the sidewalk. When the sidewalk was replaced, the city cut off the roots. |
| 5408762 |
root pruning |
|
Tree roots had grown over and under the sidewalk. When the sidewalk was replaced, the city cut off the roots. |
| 1238203 |
imbedded objects |
|
Tree damages by dog running cable. |
| 2188079 |
root problems |
|
Root constrictions |
| 2188081 |
root problems |
|
Root constrictions |
| 2187052 |
Road salt or de-icing salt |
|
|
| 2187053 |
Road salt or de-icing salt |
|
|
| 2187051 |
Road salt or de-icing salt |
|
|
| 1397097 |
human caused injury |
|
"lantern canker", Shawnee National Forest |
| 5431754 |
imbedded objects |
|
Live oak where guy wire has become embedded in the tree. |
| 5432766 |
imbedded objects |
|
|
| 5388261 |
root zone |
|
Compacted soils can lead to a raised root plate for trees. |
| 5388361 |
tree pit |
|
Tree is planted in a very small tree pit and has had cement dumped on its base. |
| 5388295 |
restricted root system |
|
Not even a reconstructed curb can keep this live oak's enormous root system contained. |
| 5388296 |
restricted root system |
|
The root system on this live oak is severely restricted. |
| 5388308 |
restricted root system |
|
A root grows over a curb and into and through a street. |
| 5388309 |
restricted root system |
|
A root grows our of a sidewalk. |
| 5388310 |
restricted root system |
|
Roots growing under a sidewalk cause cracking and heaving. |
| 5388281 |
restricted root system |
|
|
| 5388294 |
restricted root system |
|
The curb on this street was constructed to allow for a larger area of root space for this live oak. |
| 5388297 |
radiation |
|
The reflected sunlight off these buildings intensifies the angles of light hitting these trees, causing damage. |
| 5388267 |
construction |
|
Construction damage caused when the new sidewalk was installed ultimately lead to the demise of the tree. |
| 5405596 |
imbedded objects |
|
Crepe myrtle growing into fence |
| 5405595 |
imbedded objects |
|
Crepe myrtle growing into fence |
| 5423283 |
imbedded objects |
|
Sign imbedded into tree |
| 5388314 |
restricted root system |
|
Roots cause crack in sidewalk. |
| 5388313 |
restricted root system |
|
Roots growing under this sidewalk cause heaving and cracking. |
| 5388306 |
restricted root system |
|
Root damage has occured under this paved sidewalk. |
| 5388307 |
restricted root system |
|
Roots : 1; Curb : 0 |
| 5388260 |
restricted root system |
|
Roots in search of space to expand cause this brick terrace to heave. |
| 5388291 |
restricted root system |
|
The restricted root system on this large pin oak is spilling over the curb onto the street. |
| 5388218 |
restricted root system |
|
Confined root systems can cause damage to urban hardscapes. |
| 5388219 |
restricted root system |
|
Confined root systems can cause a poorly developed root system and damage to urban hardscapes. |
| 5388217 |
restricted root system |
|
Confined roots systems can cause damage to urban landscapes. |
| 5388220 |
restricted root system |
|
Confined root systems can cause heaving of surrounding hardscapes. |
| 5388221 |
restricted root system |
|
Confined root systems often cause damage to surrounding hardscape. |
| 5388222 |
restricted root system |
|
Confined root system causes damage to surrounding hardscape. |
| 5388223 |
restricted root system |
|
A confined root system causes heaving to surrounding hardscape. |
| 1397037 |
imbedded objects |
|
Tree branch girdled with rope |
| 2109100 |
Road salt or de-icing salt |
|
|
| 2109099 |
Road salt or de-icing salt |
|
|
| 1406160 |
construction |
|
tree death due to construction |
| 5388203 |
restricted root system |
|
Trees are grown in harsh urban conditions. |
| 5388202 |
restricted root system |
|
Trees have very limited root space. |
| 5388201 |
urban planting |
|
Urban boulevard trees are placed in areas surrounded by hardscape and buildings. |
| 1374327 |
human caused injury |
|
Names carved into the smooth bark |
| 1374325 |
human caused injury |
|
Names carved into the smooth bark |
| 5421901 |
crown raising (pruning) |
|
truck hit branch of tree. Situations like this require either clearance pruning to allow for adequate clearance or restrictions on truck height and sinage to alert drivers to the low clearance. |
| 5410383 |
urban infrastructure |
|
paving was laid down up to the trunk of the tree |
| 5421878 |
flooding/high water |
|
|
| 5421874 |
construction |
|
|
| 5421875 |
construction |
|
|
| 5388187 |
root lifting, soil heaving, and windthrow |
|
When root growth is restricted by urban hardscapes, roots can cause damaging heaving of hardscapes. |
| 5388188 |
paved roads and streets |
|
Maintaing the structural integrity of a paved area becomes a problem when the pavement butts up against a tree's trunk. |
| 5375331 |
staking |
|
Garden hose staking left on for to long. |
| 5375332 |
staking |
|
Garden hose staking left on the tree for to long. |
| 5375333 |
staking |
|
Staking material left on to long. |
| 5375335 |
staking |
|
Damaged caused by improper staking. |
| 5375316 |
restricted root system |
|
Plastic ground cover suffering the roots. |
| 5375311 |
soil compaction |
|
Often, dirt paths compact the soil near the base of the tree. |
| 5375302 |
construction |
|
No tree preservation during construction. |
| 5375304 |
construction |
|
Root damage caused by digging and trenching. |
| 5375305 |
construction |
|
Root problems caused from digging and trenching. |
| 5375306 |
construction |
|
Construction work damaged tree roots. |
| 5375307 |
construction |
|
Digging and trenching causes tree decline due to interference with root structure. |
| 5375308 |
construction |
|
Construction equipment often causes compaction near trees. |
| 5375309 |
restricted root system |
|
Tree roots uplifting the side walk. |
| 5375290 |
grade change |
|
Grade changing causes harm to urban trees. |
| 5375295 |
staking |
|
Problems can occur from staking to long. |
| 5375298 |
basal wound |
|
Sign of decay with minimal root flare. |
| 5375284 |
construction |
|
Bad example of tree preservation method during construcution. |
| 5375285 |
construction |
|
Construction operations with no protection of urban trees. |
| 5375286 |
construction |
|
Tree roots in the upper 6 inches of soil are quickly destroyed by construction work. |
| 5375287 |
visual tree inspection |
|
Cavity inspection. |
| 5375275 |
deadwood and snags |
|
Deadwood overhanging from the parkway trees. |
| 5375267 |
poor architecture |
|
Codominant stems over a car. |
| 5375268 |
poor architecture |
|
Codominant branching and included bark. |
| 5375269 |
restricted root system |
|
Often, roots are restricted by roadways and sidewalks. |
| 5375270 |
restricted root system |
|
Codominant branching structure along a parkway. |
| 5375271 |
construction |
|
Trees surrounding a new home during construction. |
| 5375272 |
construction |
|
Often, construction damage is harmful to urban trees. |
| 5375249 |
construction |
|
Excavation during construction causes major damage to trees. |
| 5375252 |
grade change |
|
Often, construction companies have to change the grade and work around trees throughout the urban environment. Construction damage causes a wide variety of problem towards urban trees. |
| 5375261 |
restricted root system |
|
Restricted root systems shown signs of decline. |
| 5375264 |
construction |
|
Construction damage caused by rock piling. |
| 5375266 |
included bark |
|
Codominant branching and included bark. |
| 5401877 |
storm damage (general) |
|
Years of deteriorating decay caused a large pin oak stem to break off during a storm. |
| 5401872 |
storm damage (general) |
|
Years of deteriorating decay caused a large, codominant pin oak stem to break off during a storm. |
| 5401873 |
storm damage (general) |
|
Years of deteriorating decay caused a large, codominant pin oak stem to break off during a storm. |
| 5401874 |
storm damage (general) |
|
Years of deteriorating decay caused a large pin oak stem to break off during a storm. |
| 5401875 |
storm damage (general) |
|
Years of deteriorating decay caused a large pin oak stem to break off during a storm. |
| 5401876 |
storm damage (general) |
|
Years of deteriorating decay caused a large pin oak stem to break off during a storm. |
| 5376077 |
storm damage (general) |
|
High wind caused this tree to "barber chair,' a term used when felling a tree goes wrong. |
| 5376078 |
storm damage (general) |
|
Storms can cause trees to split from the ground up and be extremely dangerous. |
| 5376079 |
storm damage (general) |
|
High wind casued this tree to fail. |
| 5376066 |
storm damage (general) |
|
Trees planted in the urban environment away from their natural locations are susceptible to storm damage. |
| 5376067 |
storm damage (general) |
|
High winds can cause major damage among trees in the urban environment!! |
| 5376068 |
storm damage (general) |
|
Storm damage caused by high winds and heavy rain fall. |
| 5376069 |
storm damage (general) |
|
Tree snapped at the base from high winds and storm damage. |
| 5376070 |
storm damage (general) |
|
Storm damage can cause trees to fall directly into power lines and be severely dangerous. Contact an ISA certified arborist to assist you when these problems occur. |
| 5375310 |
cracks or splits |
|
Large tree with symptoms of included bark. |
| 5375233 |
exposed roots |
|
|
| 5053019 |
construction |
|
Tree injured during regrading. |
| 5053023 |
imbedded objects |
|
Fencing embedded in tree. |
| 5053046 |
utility line clearance pruning |
|
Trees topped severely under a utility line |
| 5059088 |
transplant shock |
|
transplant injury |
| 5050023 |
construction |
|
Construction materials piled near trees. |
| 1407037 |
human caused injury |
|
they might see that damage to trees in a dead end. |
| 5032097 |
mechanical |
|
Mechanical damage on a green ash tree, inlcuding a wound and a crack, caused by a vehicle. |
| 5032098 |
mechanical |
|
A green ash with mechanical damage (vehicle) and poor form resulting from decay and bad branch angles. |
| 5334091 |
construction |
|
new sidewalk construction |
| 5334093 |
construction |
|
Tree immediately after sidewalk construction shows no obvious foliar damage. Refer to related images 5334090 and 5334091. |
| 5334094 |
construction |
|
Construction Injury |
| 5334090 |
construction |
|
|
| 5334092 |
construction |
|
|
| 5374101 |
human caused injury |
|
damage to pecan tree from garbage truck trying to "straighten the forks". Paint added to "seal the wound". Both are impropper practices |
| 5291097 |
human caused injury |
|
damage from repeated weed wacker injury |
| 5291096 |
restricted root system |
|
|
| 5375028 |
imbedded objects |
|
Fence imbedded into tree |
| 5376168 |
imbedded objects |
|
fence imbedded into tree |
| 5028085 |
grade change |
|
|
| 5356999 |
site selection mistakes |
|
Dr. Whitney Cranshaw (1986), inspecting poor tree placement. |
| 1473169 |
human caused injury |
|
Campground in aspen stand sustaining damage from campers carving, axing, and otherwise injuring the bark; photo taken 8/1973. |
| 1473178 |
human caused injury |
|
bark injury in campground; photo taken 7/1974 |
| 1473188 |
human caused injury |
|
|
| 5038071 |
root cutting and trenching |
|
|
| 5050017 |
soil compaction |
|
|
| 5050018 |
grade change |
|
|
| 5050020 |
construction |
|
|
| 5050021 |
construction |
|
|
| 5050019 |
grade change |
|
|
| 5050083 |
imbedded objects |
|
Deck encroachment on tree bole |
| 5052055 |
imbedded objects |
|
golf ball imbedded into tree. |
| 5052095 |
imbedded objects |
|
|
| 5053005 |
imbedded objects |
|
|
| 5053008 |
imbedded objects |
|
|
| 5053013 |
imbedded objects |
|
|
| 5053016 |
imbedded objects |
|
|
| 5050011 |
grade change |
|
|
| 5050012 |
grade change |
|
|
| 5050013 |
grade change |
|
|
| 5050014 |
grade change |
|
|
| 5050015 |
grade change |
|
|
| 5050016 |
grade change |
|
|
| 5291037 |
imbedded objects |
|
roots growing into pavers along sidewalk |
| 5291038 |
imbedded objects |
|
|
| 5291067 |
imbedded objects |
|
tree begining to grow into deck |
| 5291094 |
human caused injury |
|
habitual weed whip damage evident at base of trunk |
| 5291095 |
imbedded objects |
|
tree growing over curb |
| 5291028 |
human caused injury |
|
Garbage truck attempted to use this tree to perform repairs to the front forks used to lift dumpsters; Silver spray paint was used to "seal" the injury; Needless to say, none of this is a recommended practice |
| 5291029 |
human caused injury |
|
Garbage truck attempted to use this tree to perform repairs to the front forks used to lift dumpsters; Silver spray paint was used to "seal" the injury; Needless to say, none of this is a recommended practice |
| 5291030 |
human caused injury |
|
Garbage truck attempted to use this tree to perform repairs to the front forks used to lift dumpsters; Silver spray paint was used to "seal" the injury; Needless to say, none of this is a recommended practice |
| 5039033 |
exposed roots |
|
mower damage on root |
| 5034092 |
exposed roots |
|
mower damage on surface root |
| 5056005 |
exposed roots |
|
mower damage to roots |
| 1397107 |
exposed roots |
|
exposed roots damaged by mowers |
| 5028046 |
risk tree |
|
Hazard tree of a peculiar kind. A child was killed when he leaned his head out an open window. Tree was too close to the street surface at a bus stop |
| 1505030 |
air pollutants |
|
Air pollution damage |
| 3036037 |
restricted root system |
|
Parking lot caused dieback Columbia, SC |
| 5191049 |
restricted root system |
|
tree roots pushing up through pavement |
| 5191050 |
restricted root system |
|
tree roots pushing up through pavement |
| 1270007 |
root cutting and trenching |
|
|
| 5028069 |
restricted root system |
|
|
| 5028084 |
grade change |
|
Trees can be severely injured by grade change activities |
| 5028087 |
construction |
|
Construction activities can cause severe injury to the root systems of trees. |
| 5028088 |
grade change |
|
The grade was raised around these white pine trees (Pinus strobus). The trees suffered some dieback, but did not die. |
| 1397130 |
root cutting and trenching |
|
This drastic "root pruning" as a result of construction activities may result in the decline of the affected tree. |
| 1408005 |
grade change |
|
excessive soil fill; note the lack of a root flare |
| 5177091 |
restricted root system |
|
Older street trees may grow into curbs and in some cases, may displace curb sections. |
| 1247269 |
imbedded objects |
|
|
| 1399073 |
root problems |
|
root constrictions |
| 1458062 |
root problems |
|
strangulated root collar of eastern white pine |
| 3036056 |
imbedded objects |
|
barbed wire canker |
| 3036060 |
imbedded objects |
|
barbed wire canker |
| 3046065 |
human caused injury |
|
weed wacker damage to base of small tree |
| 1408021 |
human caused injury |
|
This oak was severely wounded when it was small. A crack later formed over the callus closure. Lawn mowers cause many injuries that later become cracks. Injured roots or roots killed during planting may also lead to cracks five or even 10 years later. |
| 1119408 |
imbedded objects |
|
Large nail in a tree |
| 1397075 |
imbedded objects |
|
yard swing mount has girdled the tree |
| 1397076 |
imbedded objects |
|
Swing mounted on tree |
| 1397086 |
imbedded objects |
|
fence embedded in tree |
| 1397027 |
human caused injury |
|
"lantern canker" |
| 1397028 |
imbedded objects |
|
|
| 1397029 |
imbedded objects |
|
embedded object |
| 1397031 |
imbedded objects |
|
|
| 1397032 |
imbedded objects |
|
|
| 1397033 |
imbedded objects |
|
deck built around tree |
| 1238204 |
imbedded objects |
|
Tree girdling by ropes for hammock. Greer, SC. |
| 1238206 |
imbedded objects |
|
Metal and concrete girdle. |
| 1238207 |
imbedded objects |
|
Tree growing around an old sign. Greenville, Sc. |
| 2651020 |
human caused injury |
|
basal damage in parking lot |
| 1397090 |
restricted root system |
|
Roots restricted by pavement (street and sidewalk) caused tree failure |
| 1408006 |
topping |
|
and severed branches. The list goes on and on. |
| 1407056 |
construction |
|
Some major types of injury, including the damage caused by construction, can be avoided. Insist that your contractor follow careful construction practices. Using heavy soil fill, damaging the roots, |
| 1407058 |
Road salt or de-icing salt |
|
Road salt and other chemicals will damage trees, especially wounded ones. |
| 1408003 |
tree grate |
|
poor soils, severe wounding, |
| 1408004 |
tree pit |
|
pressure from concrete causes root deformation as tree grows to fill a tree pit at a street corner |
| 1397139 |
topping |
|
topped tree for utility clearance |
| 5060095 |
human caused injury |
|
tree cankers with electrical box |
| 5060096 |
human caused injury |
|
tree with lantern hanger nail |
| 5061024 |
human caused injury |
|
severe weed wacker damage |
| 5061025 |
human caused injury |
|
weed whacker damage |
| 5058055 |
Road salt or de-icing salt |
|
spray damage |
| 5058056 |
Road salt or de-icing salt |
|
spray damage |
| 5056006 |
human caused injury |
|
mower weed whip damage |
| 5056007 |
human caused injury |
|
mower weed whip damage |
| 5045007 |
human caused injury |
|
"lantern" canker |
| 5055006 |
human caused injury |
|
"lantern" canker on birch with nail |
| 5055007 |
human caused injury |
|
"lantern" canker on tree (nail above canker) |
| 5049006 |
human caused injury |
|
carving vandalism |
| 5025079 |
Road salt or de-icing salt |
|
extensive salt damage along sidewalk |
| 5025080 |
Road salt or de-icing salt |
|
extensive salt damage along sidewalk |
| 5025081 |
Road salt or de-icing salt |
|
|
| 5025082 |
Road salt or de-icing salt |
|
extensive salt damage along sidewalk |
| 5025083 |
Road salt or de-icing salt |
|
extensive salt damage along sidewalk |
| 1397070 |
human caused injury |
|
Bark peeled from white birch (Betula papyrifera) in a camground. |
| 1397034 |
human caused injury |
|
This tree has a chestnut blight canker that formed after the name was carved in the trunk. |
| 1397035 |
human caused injury |
|
names carved into tree |
| 1406141 |
Road salt or de-icing salt |
|
|
| 1248013 |
Road salt or de-icing salt |
|
The actual causal agent for this damage is not yet known but appears to be associated with magnesium chloride or other chemical used to de-ice roads in winter. Boulder, CO |
| 1238200 |
human caused injury |
|
Bucket truck girdling. Seneca, SC. |
| 1238202 |
human caused injury |
|
Tree damaged by disc golf |
| 1238208 |
human caused injury |
|
The smooth bark of American beech invites people to carve their intials into it. Long island, NY |
| 1238209 |
human caused injury |
|
The smooth bark of American beech invites people to carve their initials into it. Long Island, NY |
| 1238211 |
human caused injury |
|
Automobile damage. Greenville, SC. |
| 1238213 |
human caused injury |
|
People often peel the loose bark of birches for souvenirs. Danforth, ME. |
| 1442023 |
Road salt or de-icing salt |
|
|
| 1442025 |
Road salt or de-icing salt |
|
spray injury |
| 1441117 |
Road salt or de-icing salt |
|
|
| 0886033 |
Road salt or de-icing salt |
|
to Eastern White Pine |
