International Society of Arboriculture
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Through research, technology, and education, the International Society of Arboriculture (ISA) promotes the professional practice of arboriculture and fosters a greater worldwide awareness of the benefits of trees. ISA is a dynamic medium through which arborists around the world share their experience and knowledge for the benefit of society. ISA is aligned on many fronts with other green organizations and is working hard to foster a better understanding of trees and tree care through research and the education of professionals as well as global efforts to inform tree care consumers. |
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Andrew Koeser(X)
| 93 Images of 26 Subjects | View Subject List | View Image Details | View Thumbnails |
| Image | Subject Name | Scientific Name | Description |
|---|---|---|---|
| 5375259 | soil & water | Soil types and compositions. | |
| 5375328 | soil & water | Soil graph. | |
| 5375329 | soil & water | Soil graph. | |
| 5375318 | oak | Quercus spp. | Quercus Palustris leaf. |
| 5375291 | visual tree inspection | Trunk flare inspection. | |
| 5375324 | snow | Snow covered landscape. | |
| 5375325 | snow | Snow covered landscape. | |
| 5375326 | snow | Deer tracks leading up to the base. | |
| 5375323 | snow | Snow covered landscape. | |
| 5375301 | basal wound | Basal wound, cause unknown. | |
| 5375330 | static tree support | Turn buckle tensioner. | |
| 5375327 | snow and ice damage (snow load) | Snow covered tree. | |
| 5375297 | planting | Smaller species planted below power lines. | |
| 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. | |
| 5375334 | staking | Staking material imbedded into the tree because it was not removed at a young age. | |
| 5375335 | staking | Damaged caused by improper staking. | |
| 5375336 | staking | Improper staking material. | |
| 5375320 | snow and ice damage (snow load) | Snow covered landscape. | |
| 5375321 | snow and ice damage (snow load) | Snow covered tree. | |
| 5375322 | snow and ice damage (snow load) | Snow covered landscape. | |
| 5375319 | snow and ice damage (snow load) | Tree covered with snow. | |
| 5375314 | construction | Soil quality near construction site. | |
| 5375315 | organic mulch | Mulch can provide protection near the base of trees, hold moisture, and add organic matter. | |
| 5375316 | restricted root system | Plastic ground cover suffering the roots. | |
| 5375317 | snow and ice damage (snow load) | Trees covered with snow. | |
| 5375299 | basal wound | Excellent indication of internal decay. | |
| 5375300 | basal wound | Large hole at the base. | |
| 5375311 | soil compaction | Often, dirt paths compact the soil near the base of the tree. | |
| 5375313 | construction | Soil below ground near construction work. | |
| 5375302 | construction | No tree preservation during construction. | |
| 5375303 | construction | Often, roots are damaged by construction work. | |
| 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. | |
| 5375298 | basal wound | Sign of decay with minimal root flare. | |
| 5375288 | decay | Large internal/external decay on the trunk. | |
| 5375290 | grade change | Grade changing causes harm to urban trees. | |
| 5375292 | visual tree inspection | Arborist inspecting the base. | |
| 5375293 | basal wound | Cavity near the base. | |
| 5375294 | restricted root system | Limited root growth availability. | |
| 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. | |
| 5375278 | visual tree inspection | Certified arborists inspect trees for any problems that may occur. *Pre-climb inspection is also related to visual tree inspection. | |
| 5375279 | visual tree inspection | Arborist inspects the trunk. | |
| 5375280 | visual tree inspection | Tree risk assessment is done to get an idea of what potential problems the trees may have. | |
| 5375281 | visual tree inspection | Arborists inspects the base of this tree. | |
| 5375282 | visual tree inspection | Documentation is important when dealing with visual tree inspections. | |
| 5375275 | deadwood and snags | Deadwood overhanging from the parkway trees. | |
| 5375276 | visual tree inspection | Arborist monitoring for urban forestry management. | |
| 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. | |
| 5375273 | restricted root system | Parkway trees have limited area for root growth. | |
| 5375274 | construction | Construction site with a variety of soil qualities. | |
| 5375261 | restricted root system | Restricted root systems shown signs of decline. | |
| 5375263 | grade change | Soil under construction. | |
| 5375264 | construction | Construction damage caused by rock piling. | |
| 5375265 | decay | Decay indications. | |
| 5375266 | included bark | Codominant branching and included bark. | |
| 5375240 | decay | Large cavity and decay at the base of a standing tree. | |
| 5375241 | organic mulch | Mulch is an urban property that is used for many different applications. For example: using mulch can retain moisture; reduce compaction, and moderate temperature extremes. | |
| 5375242 | soil horizons | Often, soil horizons are shown to demonstrate the layer or zone of the soil profile with physical, chemical, and biological characteristics that differ from adjacent layers. | |
| 5375249 | construction | Excavation during construction causes major damage to trees. | |
| 5375250 | soil horizons | Soil horizon showing the difference between layers. | |
| 5375251 | soil horizons | Soil horizons are shown to get an idea of what soil life is like beyond the surface. | |
| 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. | |
| 5375253 | soil horizons | Construction zones are a good place to locate soil horizons. | |
| 5375254 | fertilization | Limestone is often used to enhance fertilization effectiveness and promote soil pH. | |
| 5375255 | fertilization | Soil can be deficient in lime and need proper supplies of calcium and magnesium to help enhance fertilizer effectiveness and nuetralize soil acidity. | |
| 5375256 | fertilization | Lawns that are deficient and not producing a healthy lawn may require dolomitic limestone to help correct soil pH and boost nutrients. | |
| 5375257 | pruning (general) | Tree wound dressing. | |
| 5375258 | soil & water | Soil testing kit. | |
| 5375186 | urban planting | Trees provide shade and help with utility costs. | |
| 5375310 | cracks or splits | Large tree with symptoms of included bark. | |
| 5375233 | exposed roots | ||
| 5375244 | construction | Construction site preparation/grading | |
| 5375245 | construction | Construction site preparation. Truck in foreground to show scale. | |
| 5375238 | mulching | Example of inorganic mulch - large stone | |
| 5375229 | decay | Severely decayed stem | |
| 5375247 | construction | Urban soils are often highly disturbed. Concrete washout and other debris can alter soil structure and chemistry. | |
| 5375237 | staking | Guy wires with rubber hose protectors. Left on more than one growing season. Partial stem girdling. | |
| 5375236 | inorganic mulch | Geotextile fabric used on an tree lawn |
