International Society of Arboriculture's Images
Organization: International Society of ArboricultureCountry: United States
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| 251 Images of 58 Subjects | View Subject List | View Image Details | View Thumbnails |
| Image | Subject Name | Scientific Name | Description |
|---|---|---|---|
| 5377006 | tree anatomy | cross-section of trunk | |
| 5377013 | tree anatomy | diagram of tree stem | |
| 5395467 | tree anatomy | cross section of a trunk | |
| 5394658 | ISA Other Meetings | Arborists/foresters talking with the media. Public relations. | |
| 5394660 | ISA Other Meetings | Arborists/foresters talking with the media. Public relations. | |
| 5394655 | ISA Other Meetings | Arborists/foresters talking with the media. Public relations. | |
| 5394654 | ISA Other Meetings | Arborists/foresters talking with the media. Public relations. | |
| 5394651 | ISA Other Meetings | Arborists/foresters talking with the media. Public relations. | |
| 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 | |
| 5395617 | crown thinning (pruning) | over thining | |
| 5395574 | fertilization | cations bound to negatively charged soil particles | |
| 5395575 | grade change | before grade change | |
| 5395577 | felling | showing holding wood from notch | |
| 5395578 | fertilization | nutrient availability changing with pH | |
| 5395579 | mulching | a layer of mulch can effectively adsorb and hold water | |
| 5395503 | fertilization | Nutrients and micronutrients | |
| 5395504 | friction hitch | Muenter Hitch | |
| 5395505 | mulching | a layer of mulch can efficiently absorb and hold water. | |
| 5395497 | urban planting | planning map for back yard showing utilities | |
| 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. | |
| 5395501 | site selection mistakes | ||
| 5395494 | rigging (general) | landing zone for rigging | |
| 5395495 | pruning (general) | Landing zone for trimming operations | |
| 5395496 | urban planting | planning map for back yard | |
| 5395489 | lightning protection | ||
| 5395490 | lightning protection | protection in a decurrent tree | |
| 5395482 | chainsaw | this quadrant of the bar tip is very susceptible to kickback | |
| 5395486 | urban planting | factors to consider in the urban landscape | |
| 5395480 | ground worker | some plants can cause rashes from allergic reaction | |
| 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. | |
| 5395471 | utility line clearance pruning | indirect contact | |
| 5395472 | planting | showing interface in planting hole | |
| 5395474 | tree injections | ||
| 5395468 | lightning protection | Attaching wire to grounding rod | |
| 5395196 | risk tree | ||
| 5395197 | risk tree | ||
| 5395198 | risk tree | ||
| 5377165 | cabling | cable to another tree | |
| 5377166 | cabling | cabled to another tree | |
| 5377167 | cabling | cabled to another tree | |
| 5377196 | root zone excavation | using air compressor driven tool such as air spade or air knife. | |
| 5377223 | fertilization | nitrogen leaching | |
| 5377169 | cabling | cable to another tree...through bolt is at the wrong angle relative to the pull of the cable | |
| 5377170 | cabling | cable to another tree | |
| 5377163 | staking | guy wire to ground | |
| 5377164 | cabling | guy wire to another tree | |
| 5377158 | lightning protection | ||
| 5377159 | tailgate safety | when an emergency happens, it is important to call emergency services | |
| 5377160 | cabling | cable to other tree | |
| 5377150 | grade change | grade change at edge of root zone | |
| 5377151 | grade change | grade change at edge of root zone | |
| 5377152 | grade change | grade change on edge of root zone | |
| 5377153 | grade change | grade change on edge of root zone | |
| 5377154 | grade change | grade change well over edge of root zone | |
| 5377155 | grade change | grade change well over edge of root zone | |
| 5377148 | tailgate safety | filling a gas can | |
| 5377149 | stem girdling roots | ||
| 5377140 | felling | ||
| 5377141 | planting | ||
| 5377142 | utility line clearance pruning | example of direct contact | |
| 5377145 | utilities | electrical hazard | |
| 5377147 | drainage | french drain | |
| 5377137 | bracing | cross-section of dead end bolt illustration | |
| 5377138 | cabling | equation for percentage of sound wood for throughbolt applications | |
| 5377139 | urban planting | planning for urban landscape and following a landscape design | |
| 5377131 | construction | protecting trees during construction | |
| 5377132 | pre-climb inspection | evaluationg possible crotch choices for climbing line placement | |
| 5377133 | pre-climb inspection | Evaluating crotches while in tree for climbing line placement | |
| 5377135 | tree worker | ||
| 5377118 | cabling | proper positioning of the cable | |
| 5377125 | tree worker | basic tree worker personal protection equipment | |
| 5377111 | lightning protection | Tree lightning protection systems. | |
| 5377112 | ISA Publications | ||
| 5377113 | utilities | boots do not offer protection to electrical conductors | |
| 5377114 | chainsaw | starting a bore cut | |
| 5377115 | ISA Publications | ||
| 5377106 | drainage | poor drainage site | |
| 5377109 | friction hitch | Blake's hitch | |
| 5377110 | tree anatomy | ||
| 5377097 | crown reduction (pruning) | proper location for a crown reduction cut | |
| 5377088 | planting stock | example of a bad nursery tree | |
| 5377090 | tree pit | trees along street that have outgrown their locations | |
| 5377096 | tree climbing competition | setup for Belayed Speed Climb Event | |
| 5377067 | cracks or splits | ||
| 5377078 | ISA Publications | ||
| 5377081 | lightning protection | diagram of simple setup | |
| 5377083 | ISA Publications | ||
| 5377062 | branch union | ||
| 5377063 | branch union | ||
| 5377064 | crown thinning (pruning) | ||
| 5377065 | crown raising (pruning) | ||
| 5377066 | crown reduction (pruning) | ||
| 5376989 | cabling | cutting off excess of throughbolt | |
| 5377001 | cabling | Top diagram shows proper alignment of lag or through bolt to cable | |
| 5377082 | lightning protection | diagram of lines to multiple groundrods | |
| 5376983 | ground worker | using a cant hook for rolling logs | |
| 5377056 | staking | different ways to stake a tree | |
| 5430411 | climbing work | ||
| 5430374 | staking | ||
| 5395507 | static tree support | multiple support systems | |
| 5395506 | organic mulch | bag of wood chip mulch | |
| 5395502 | site selection mistakes | ||
| 5395500 | tree worker | method of ascent using slack tender | |
| 5377168 | cabling | cabled to another tree | |
| 5395473 | crown cleaning (pruning) | removing dead branches from conifer | |
| 5395463 | staking | ||
| 5377124 | tree worker | ||
| 5377161 | staking | guy wire to ground | |
| 5377157 | staking | ground anchor on spruce | |
| 5377126 | dynamic tree support | showing Cobra system | |
| 5377071 | cabling | showing hand wrap cable termination | |
| 5377070 | cabling | cable wrap and thimble | |
| 5376999 | cabling | position of a cable relative to branch union being supported | |
| 5430412 | pruning (general) | ||
| 5395484 | chainsaw | the action of kickback | |
| 5395483 | chainsaw | the action of kickback | |
| 5377146 | cabling | When using electric tools in the tree the tolls should be secured with a lanyard even during use. This setup does provide for secure use. | |
| 5377144 | cabling | when using electric tools in the tree the tolls should be secured with a lanyard even during use. This setup does not provide for secure use. | |
| 5377121 | chipping | basic safety | |
| 5377134 | cabling | showing recommended distance for cabling on same stem. Cables should be at least the diameter of the stem apart if not more. | |
| 5377095 | felling | preventing barber chair | |
| 5377092 | felling | 2 of 4 showing development of barber chair | |
| 5377093 | felling | 3 of 4 showing development of barber chair | |
| 5377094 | felling | 4 of 4 showing development of barber chair | |
| 5377080 | bracing | ||
| 5377077 | cabling | Arrangement of multiple cables on one lag or through-bolt. | |
| 5377091 | felling | 1 of 4 showing development of barber chair | |
| 5377089 | rigging (general) | balancing a load | |
| 5377085 | tree worker | using the climbing line to reach the tip of a limb | |
| 5377087 | rigging (general) | ||
| 5377084 | chainsaw | use of chainsaw in limb removal while aloft | |
| 5377004 | cabling | staggering of cables on same stem | |
| 5377002 | cabling | Demonstration of cable | |
| 5376982 | chainsaw | basic safety | |
| 5376993 | cabling | Demonstrates come-along for cable installation pulling two leads/branches/trees together. | |
| 5377005 | cabling | diagram of lag several years after installation | |
| 5376979 | mechanical advantadge | using a 2-1 mechanical advantadge | |
| 5376986 | cabling | ||
| 5376987 | cabling | lag and through bolt hardware | |
| 5430416 | soil & water | begining of series on water movement through different soil types | |
| 5377058 | branch union | branch attachment | |
| 5377059 | crown reduction (pruning) | ||
| 5377061 | branch union | ||
| 5377057 | staking | different stakes or anchors used with trees | |
| 5377051 | planting | ||
| 5377052 | planting | showing comparison of proper technique with backet removed or cut back and impropper technique with basket left in place. | |
| 5377053 | planting | compating planting hole shape and root development | |
| 5377055 | planting | ||
| 5377045 | ISA Publications | ||
| 5377046 | ISA Publications | ||
| 5377048 | planting | ||
| 5377049 | planting | with taproot | |
| 5377050 | stem girdling roots | circling roots | |
| 5377040 | soil aggregates | Soil particles at different soil moisture contents | |
| 5377041 | soil aggregates | movement of watter in different soil types | |
| 5377042 | irrigation | sprinkler in yard | |
| 5377038 | soil aggregates | movement of water through different soil types | |
| 5377039 | soil aggregates | movement of water through different soil types | |
| 5377035 | soil aggregates | soil particles | |
| 5377036 | soil aggregates | soil particles at field capacity | |
| 5377032 | soil aggregates | showing general composition of soil | |
| 5377033 | soil horizons | showing example of soil horizons | |
| 5377026 | tree anatomy | pinnate leaf on stem | |
| 5377020 | tree anatomy | the tree, the inputs and outputs with its environment and its internal allocations of resources | |
| 5377021 | tree anatomy | Graph of Photosynthesis and growth rate as water or nutrient availability varies | |
| 5377022 | tree anatomy | Graph of Photosynthesis, growth rate, and allelochemical concentration (secondary metabolites) water or nutrient availability varies | |
| 5377014 | Compartmentalization Of Decay In Trees (CODIT) | ||
| 5377009 | tree anatomy | leaf cross-section | |
| 5377012 | tree anatomy | basic diagram of photosynthesis | |
| 5377007 | tree anatomy | diagram of twig | |
| 5377008 | branch union | branch bark collar | |
| 5377003 | cabling | different static support system configurations | |
| 5376994 | cabling | Chicago grip | |
| 5376997 | cabling | Demonstrating hand wrap technique of terminating a cable | |
| 5376988 | cabling | typical equipment used in installing cables; drill and come-a-long attached to sling | |
| 5376990 | cabling | seating washer and bolt of throughrod against trunk | |
| 5376991 | cabling | quick wrap and thimble used in cable termination in cable installation | |
| 5376992 | cabling | process of using a cable wrap or quickend to terminate a cable | |
| 5376981 | construction | Soil trenching/tunneling during construction. Possible root loss. Circle depicts dripline. | |
| 5395478 | planting | ||
| 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. | |
| 5430414 | soil & water | showing root hairs surrounded by soil particles and water | |
| 5395481 | chainsaw | Different chain types to prevent kickback | |
| 5395195 | ISA Publications | ||
| 5377156 | ground worker | ground worker personal protection equipment | |
| 5377119 | planting stock | balled and burlapped stock | |
| 5377171 | planting | ||
| 5377105 | planting | planting too deep | |
| 5377044 | ISA Publications | ||
| 5376984 | ground worker | Showing proper lifting technique | |
| 5376998 | cabling | tree prior to cable installation | |
| 5377010 | tree anatomy | leaf cross-section | |
| 5377011 | tree anatomy | root tip and root hairs | |
| 5377069 | cabling | through bolt hardware | |
| 5377068 | cabling | right and left handed lags | |
| 5377047 | tree anatomy | Tree habits; Pyramidal, Oval, Palm, Irregular, Columnar, Round, Vase, multi-trunk | |
| 5377029 | tree anatomy | Leaf bases; acute, rounded, cordate, oblique, auriculate | |
| 5377030 | tree anatomy | leaf tips; acuminate, acute, obtuse, obcordate, cuspidate | |
| 5376995 | cabling | cable cutting equipment | |
| 5376996 | cabling | cable aid; used to tighten lags and aid in cable installation | |
| 5377034 | soil aggregates | soil texture triangle | |
| 5377037 | soil aggregates | Chart showing available water by soil texture | |
| 5430415 | soil & water | showing root hairs | |
| 5395488 | tree anatomy | leaf types | |
| 5377027 | tree anatomy | compound leaves; pinnately compound, bipinnately compound, palmately compound | |
| 5377025 | tree anatomy | Leaf on stem | |
| 5377028 | tree anatomy | compound leaf types; pinnate, bipinnate, palmate | |
| 5377031 | tree anatomy | Leaf margins; From Top left to bottom right - Entire, Serrate, Serrulate, Doubly-Serate, Dentate, Crenate, Undulate, Lobed | |
| 5394721 | Compartmentalization Of Decay In Trees (CODIT) | Wound compartmentalization. | |
| 5394623 | Personal Protective Equipment | Use of personal protective equipment (PPE). | |
| 5377127 | ISA Publications | ||
| 5394796 | urban ecosystem | ||
| 5394797 | urban ecosystem | ||
| 5394794 | risk tree | ||
| 5394793 | storm damage (general) | ||
| 5394792 | storm damage (general) | ||
| 5394791 | storm damage (general) | ||
| 5394790 | sanitation/salvage | ||
| 5394786 | urban ecosystem | ||
| 5394779 | urban ecosystem | ||
| 5394756 | decay | Physical damage to the base of the tree probably caused by lawnmowers/trimmers. | |
| 5394734 | pruning (general) | Urban tree requiring pruning. | |
| 5394730 | urban ecosystem | ||
| 5394628 | ISA Other Meetings | Arborists/foresters and the media. Public relations. | |
| 5394629 | crane | Crane/aerial lift use. | |
| 5394627 | ISA Other Meetings | Arborists/foresters and the media. Public relations. | |
| 5394563 | ISA EGS | Using computer-based tree identification keys. | |
| 5394719 | urban ecosystem | Commercial arboriculture. | |
| 5394650 | ISA Other Meetings | Arborists/foresters talk with the media. Public relations. | |
| 5394648 | ISA Other Meetings | Arborists/foresters talking with the media. Public relations. | |
| 5394647 | ISA Other Meetings | Arborists/foresters talking with the media. Public relations. | |
| 5394642 | ISA Other Meetings | Arborists/foresters talking with the media. Public relations. | |
| 5394640 | urban ecosystem | ||
| 5394638 | ISA Other Meetings | Arborists/foresters talking with the media. Public relations. | |
| 5394637 | ISA Other Meetings | Observing trees. | |
| 5394630 | crane | Use of crane (aerial lift). | |
| 5394625 | crane | Crane (aerial lift) use. | |
| 5394626 | crane | Crane (aerial lift) use. | |
| 5394620 | crane | Crane (aerial lift) use. | |
| 5394616 | urban ecosystem | Urban park scene. Media and photo shoot. | |
| 5394614 | crane | Crane (aerial lift) use. | |
| 5394613 | crane | Crane (aerial lift) use. | |
| 5394612 | crane | ||
| 5394578 | mulching | ||
| 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 |
