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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Misc. Tree Care(X)
| 175 Images of 47 Subjects | View Subject List | View Image Details | View Thumbnails |
| Image | Subject Name | Scientific Name | Description |
|---|---|---|---|
| 5430375 | tree implants | ||
| 5430413 | tree injections | ||
| 5395580 | fertilization | organic to inorganic transition cycle for tree fertilization | |
| 5395616 | fertilization | worker carrying hose from truck for fertilizer application | |
| 5395574 | fertilization | cations bound to negatively charged soil particles | |
| 5395579 | mulching | a layer of mulch can effectively adsorb and hold water | |
| 5395575 | grade change | before grade change | |
| 5395503 | fertilization | Nutrients and micronutrients | |
| 5395498 | tree climbing competition | Master's challenge | |
| 5395499 | fertilization | Subsurface, drill-hole application of fertilizer requires drilling holes to a depth of 4 to 12 inches (4 to 8 preferred) and pouring a specified amount of fertilizer into each hole. There should be at least 2 inches between the top of the fertilizer and the surface of the soil. | |
| 5395505 | mulching | a layer of mulch can efficiently absorb and hold water. | |
| 5395489 | lightning protection | ||
| 5395490 | lightning protection | protection in a decurrent tree | |
| 5395485 | biological control (general) | ||
| 5395487 | defoliation due to unknown cause | ||
| 5395474 | tree injections | ||
| 5395479 | mulching | keeping mulch from the base of a tree prevents rodents and other creachers from making a home at the base and potentially damaging the tree. | |
| 5395468 | lightning protection | Attaching wire to grounding rod | |
| 5377223 | fertilization | nitrogen leaching | |
| 5377196 | root zone excavation | using air compressor driven tool such as air spade or air knife. | |
| 5377158 | lightning protection | ||
| 5377143 | plant diagnostics | ||
| 5377136 | plant diagnostics | Doctor Dendro working with an arborist | |
| 5377116 | plant diagnostics | various insects that feed on trees | |
| 5377111 | lightning protection | Tree lightning protection systems. | |
| 5377115 | ISA Publications | ||
| 5377104 | plant diagnostics | ||
| 5377096 | tree climbing competition | setup for Belayed Speed Climb Event | |
| 5377081 | lightning protection | diagram of simple setup | |
| 5377083 | ISA Publications | ||
| 5377082 | lightning protection | diagram of lines to multiple groundrods | |
| 5395506 | organic mulch | bag of wood chip mulch | |
| 5395500 | tree worker | method of ascent using slack tender | |
| 5395476 | plant diagnostics | examining a pheromone trap | |
| 5395475 | plant diagnostics | ||
| 5377045 | ISA Publications | ||
| 5377024 | plant diagnostics | The Appropriate Response Process (ARP) can be used to evaluate the various aspects of a situation and determint the proper course of action based on the condition of the plant, the envieonmen the plant is in, and the perceptions and expectations of the client. It is a continuing process since it is necessary to re-evaluate the situation as variables change. | |
| 5377015 | plant diagnostics | foliage symptoms | |
| 5377018 | plant diagnostics | ||
| 5377129 | fertilization | depending on the nutrient content of the soils, a complete fertilizer may not be needed. A soil test prior to fertilizer application is recommended. | |
| 5395195 | ISA Publications | ||
| 5458654 | ISA Logos | ||
| 5375366 | risk tree | Resistance-recording drill in use. | |
| 5375367 | risk tree | Up close view of a resistance-recording drill against the tree. | |
| 5375365 | risk tree | Resistance-recording drills are an advanced drilling tools that measure the resistance over the distance drilled, which allows for fairly effective decay detection. However, like all decay detection methods, this equipment still have limitations. | |
| 5458586 | dieback | ||
| 5458585 | dieback | ||
| 5458584 | dieback | ||
| 5458582 | Compartmentalization Of Decay In Trees (CODIT) | ||
| 5458583 | Compartmentalization Of Decay In Trees (CODIT) | ||
| 5458247 | mulching | Note: Likely planted too deep; no taper. | |
| 5458246 | mulching | ||
| 5456499 | bracing | ||
| 5456498 | bracing | ||
| 5456497 | |||
| 5456495 | |||
| 5456494 | |||
| 5431686 | planting | ||
| 5431685 | planting | ||
| 5431684 | planting | ||
| 5431679 | pine | Pinus spp. | |
| 5431678 | Scots pine | Pinus sylvestris | |
| 5431677 | beech | Fagus spp. | |
| 5431676 | |||
| 5431675 | |||
| 5431673 | |||
| 5462882 | |||
| 5462881 | |||
| 5462880 | |||
| 5462879 | |||
| 5462878 | canker | ||
| 5462877 | |||
| 5462876 | decay | ||
| 5462874 | |||
| 5462873 | |||
| 5462872 | |||
| 5462871 | |||
| 5462870 | |||
| 5462869 | |||
| 5462868 | |||
| 5462867 | |||
| 5462866 | |||
| 5462865 | Note: Carpenter ant colony in bole. | ||
| 5462864 | Note: Carpenter Ant colony in bole. | ||
| 5462862 | |||
| 5462861 | |||
| 5462860 | |||
| 5445001 | root problems | Removing girdling roots. | |
| 5444998 | root problems | Removing girdling roots. | |
| 5445002 | root collar excavation | Soil equipment and use, air excavation device. | |
| 5445003 | root collar excavation | Soil equipment and use, air excavation device. | |
| 5444999 | root problems | Removing girdling roots. | |
| 5444997 | root problems | Girdling roots. | |
| 5444996 | root collar excavation | Soil equipment and use, air excavation device. | |
| 5444995 | root collar excavation | Soil equipment and use, air excavation device. | |
| 5444988 | root collar excavation | Soil equipment and use, air excavation device. | |
| 5444987 | root problems | Girdling roots. | |
| 5444986 | root zone excavation | Soil equipment and use, air excavation device. | |
| 5444985 | root zone | ||
| 5444982 | root zone excavation | Soil equipment and use, air excavation device. | |
| 5444983 | root collar excavation | Soil equipment and use, air excavation device. | |
| 5444981 | root collar excavation | Soil equipment and use, air excavation device. | |
| 5444980 | root collar excavation | Soil equipment and use, air excavation device. | |
| 5444946 | air excavator | ||
| 5444979 | root zone excavation | ||
| 5444978 | root zone | ||
| 5444976 | air excavator | ||
| 5444977 | air excavator | ||
| 5444974 | air excavator | ||
| 5444975 | air excavator | ||
| 5444972 | air excavator | ||
| 5444973 | air excavator | ||
| 5444971 | air excavator | ||
| 5444969 | soil horizons | ||
| 5444970 | air excavator | ||
| 5444967 | soil horizons | ||
| 5444968 | soil horizons | ||
| 5444966 | soil horizons | ||
| 5444965 | soil compaction | ||
| 5444962 | soil horizons | ||
| 5444963 | soil horizons | ||
| 5444960 | soil compaction | ||
| 5444961 | soil horizons | ||
| 5444958 | soil compaction | ||
| 5444959 | soil compaction | ||
| 5444956 | soil compaction | ||
| 5444957 | soil compaction | ||
| 5444955 | soil compaction | ||
| 5444953 | root zone | ||
| 5444954 | root zone | ||
| 5444952 | root zone excavation | ||
| 5444950 | root zone excavation | ||
| 5444951 | root zone excavation | ||
| 5444949 | air excavator | ||
| 5444948 | air excavator | ||
| 5444945 | air excavator | ||
| 5444944 | air excavator | ||
| 5431668 | urban ecosystem | ||
| 5431651 | containers | Tree in a planter inside the Louvre Museum (Paris, France). | |
| 5431642 | burl and decay | ||
| 5431655 | soil aggregates | ||
| 5431653 | soil & water | ||
| 5431654 | soil & water | ||
| 5431652 | soil & water | ||
| 5431624 | urban planting | Compacted soil in urban settings. | |
| 5431623 | urban planting | Soil compaction in urban settings. | |
| 5394790 | sanitation/salvage | ||
| 5394629 | crane | Crane/aerial lift use. | |
| 5394563 | ISA EGS | Using computer-based tree identification keys. | |
| 5394719 | urban ecosystem | Commercial arboriculture. | |
| 5394646 | Meeting, unknown location | Risk assessment, consulting, job-site meeting. | |
| 5394630 | crane | Use of crane (aerial lift). | |
| 5394626 | crane | Crane (aerial lift) use. | |
| 5394625 | crane | Crane (aerial lift) use. | |
| 5394620 | crane | Crane (aerial lift) use. | |
| 5394614 | crane | Crane (aerial lift) use. | |
| 5394613 | crane | Crane (aerial lift) use. | |
| 5394612 | crane | ||
| 5394578 | mulching | ||
| 5375324 | snow | Snow covered landscape. | |
| 5375325 | snow | Snow covered landscape. | |
| 5375326 | snow | Deer tracks leading up to the base. | |
| 5375323 | snow | Snow covered landscape. | |
| 5375327 | snow and ice damage (snow load) | Snow covered tree. | |
| 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. | |
| 5375317 | snow and ice damage (snow load) | Trees covered with snow. | |
| 5375308 | construction | Construction equipment often causes compaction near trees. | |
| 5375257 | pruning (general) | Tree wound dressing. | |
| 5395493 | tree worker | limit to double crotch technique | |
| 5395492 | lightning protection | protection in a three-trunked, decurrent tree | |
| 5395491 | lightning protection | protection in an excurrent tree | |
| 5378141 | irrigation | ||
| 5375236 | inorganic mulch | Geotextile fabric used on an tree lawn |
