| 5395575 |
grade change |
|
before grade change |
| 5377154 |
grade change |
|
grade change well over edge of root zone |
| 5377145 |
utilities |
|
electrical hazard |
| 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 |
| 5388268 |
construction |
|
A new sidewalk is layed right next to trees. |
| 5443536 |
human caused injury |
|
names carved in outer bark on paper birch
|
| 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. |
| 5408764 |
utilities |
|
Utility lines conflicting with tree |
| 1397097 |
human caused injury |
|
"lantern canker", Shawnee National Forest |
| 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. |
| 5388267 |
construction |
|
Construction damage caused when the new sidewalk was installed ultimately lead to the demise of the tree. |
| 1406160 |
construction |
|
tree death due to construction |
| 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 |
| 5421874 |
construction |
|
|
| 5421875 |
construction |
|
|
| 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. |
| 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. |
| 5375290 |
grade change |
|
Grade changing causes harm to urban trees. |
| 5375295 |
staking |
|
Problems can occur from staking to long. |
| 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. |
| 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. |
| 5375264 |
construction |
|
Construction damage caused by rock piling. |
| 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. |
| 5375233 |
exposed roots |
|
|
| 5053019 |
construction |
|
Tree injured during regrading. |
| 5053046 |
utility line clearance pruning |
|
Trees topped severely under a utility line |
| 5050023 |
construction |
|
Construction materials piled near trees. |
| 1407037 |
human caused injury |
|
they might see that damage to trees in a dead end. |
| 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 |
| 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 |
|
|
| 5050018 |
grade change |
|
|
| 5050020 |
construction |
|
|
| 5050021 |
construction |
|
|
| 5050019 |
grade change |
|
|
| 5050011 |
grade change |
|
|
| 5050012 |
grade change |
|
|
| 5050013 |
grade change |
|
|
| 5050014 |
grade change |
|
|
| 5050015 |
grade change |
|
|
| 5050016 |
grade change |
|
|
| 5291094 |
human caused injury |
|
habitual weed whip damage evident at base of trunk |
| 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 |
| 5034092 |
exposed roots |
|
mower damage on surface root |
| 5039033 |
exposed roots |
|
mower damage on root |
| 1397107 |
exposed roots |
|
exposed roots damaged by mowers |
| 5056005 |
exposed roots |
|
mower damage to roots |
| 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 |
| 1270007 |
root cutting and trenching |
|
|
| 1408005 |
grade change |
|
excessive soil fill; note the lack of a root flare |
| 5028084 |
grade change |
|
Trees can be severely injured by grade change activities |
| 1397130 |
root cutting and trenching |
|
This drastic "root pruning" as a result of construction activities may result in the decline of the affected tree. |
| 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. |
| 1397027 |
human caused injury |
|
"lantern canker" |
| 2651020 |
human caused injury |
|
basal damage in parking lot |
| 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. |
| 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, |
| 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 |
| 5056006 |
human caused injury |
|
mower weed whip damage |
| 5056007 |
human caused injury |
|
mower weed whip damage |
| 5055006 |
human caused injury |
|
"lantern" canker on birch with nail |
| 5055007 |
human caused injury |
|
"lantern" canker on tree (nail above canker) |
| 5045007 |
human caused injury |
|
"lantern" canker |
| 5049006 |
human caused injury |
|
carving vandalism |
| 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 |
| 1397070 |
human caused injury |
|
Bark peeled from white birch (Betula papyrifera) in a camground. |
| 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. |
| 0005091 |
human caused injury |
|
Mzima Springs |
