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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
5395576 water budget
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.
5395501 site selection mistakes
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.
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
5395485 biological control (general)
5395486 urban planting factors to consider in the urban landscape
5395487 defoliation due to unknown cause
5395480 ground worker some plants can cause rashes from allergic reaction
5395482 chainsaw this quadrant of the bar tip is very susceptible to kickback
5395474 tree injections
5395469 drought using indicator plants for determining water stress
5395470 drought using indicator plants for determining water stress
5395471 utility line clearance pruning indirect contact
5395472 planting showing interface in planting hole
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
5395464 water budget diagram in series of planning for hydrozones
5395465 water budget diagram in series of planning for hydrozones
5395466 water budget diagram in series of planning for hydrozones
5395204 water budget diagram in series of planning for hydrozones
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
5377177 water budget diagram in series of planning for hydrozones
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
5377158 lightning protection
5377159 tailgate safety when an emergency happens, it is important to call emergency services
5377160 cabling cable to other tree
5377163 staking guy wire to ground
5377164 cabling guy wire to another 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
5377145 utilities electrical hazard
5377140 felling
5377141 planting
5377142 utility line clearance pruning example of direct contact
5377143 plant diagnostics
5377147 drainage french drain
5377136 plant diagnostics Doctor Dendro working with an arborist
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
5377128 soil compaction
5377135 tree worker
5377123 air pollutants chronic stress caused by factory smoke
5377125 tree worker basic tree worker personal protection equipment
5377116 plant diagnostics various insects that feed on trees  
5377117 soil compaction bulk density diagram
5377118 cabling proper positioning of the cable
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
5377107 plant diagnostics
5377108 water budget
5377109 friction hitch Blake's hitch
5377110 tree anatomy
5377104 plant diagnostics
5377097 crown reduction (pruning) proper location for a crown reduction cut
5377098 allelopathy allelopathic effects
5377099 human caused injury tree being injured
5377100 soil compaction truck compacting soil over roots
5377101 human caused injury now showing decline from past injuries
5377103 abiotic stresses (general) mature tree predisposed to decline via abiotic stresses
5377096 tree climbing competition setup for Belayed Speed Climb Event
5377088 planting stock example of a bad nursery tree
5377090 tree pit trees along street that have outgrown their locations
5377078 ISA Publications
5377081 lightning protection diagram of simple setup
5377083 ISA Publications
5377086 water budget
5377067 cracks or splits
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
5377056 staking different ways to stake a tree
5376983 ground worker using a cant hook for rolling logs
5430411 climbing work
5430374 staking
5395507 static tree support multiple support systems
5395502 site selection mistakes
5395506 organic mulch bag of wood chip mulch
5395500 tree worker method of ascent using slack tender
5395473 crown cleaning (pruning) removing dead branches from conifer
5377168 cabling cabled to another tree
5395463 staking
5377161 staking guy wire to ground
5377124 tree worker
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)
5395476 plant diagnostics examining a pheromone trap
5395484 chainsaw the action of kickback
5395483 chainsaw the action of kickback
5395475 plant diagnostics
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.
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.
5377095 felling preventing barber chair
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.
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
5377091 felling 1 of 4 showing development of barber chair
5377089 rigging (general) balancing a load
5377077 cabling Arrangement of multiple cables on one lag or through-bolt.
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
5377055 planting
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
5377045 ISA Publications
5377046 ISA Publications
5377048 planting
5377049 planting with taproot
5377050 stem girdling roots circling roots
5377043 water budget Water use within the landscape
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  
5377026 tree anatomy pinnate leaf on stem
5377032 soil aggregates showing general composition of soil
5377033 soil horizons showing example of soil horizons
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
5377023 abiotic stresses (general) abiotic stresses can begin teh cycle of decline where a mature tree becomes predisposed to further stresses as well as insect and disease problems followed be the continued decline of the tree and substantial dieback.
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
5377017 allelopathy
5377018 plant diagnostics
5377019 Dutch elm disease Ophiostoma ulmi disease cycle
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.
5377122 chlorosis (general symptom)
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
5377171 planting
5377119 planting stock balled and burlapped stock
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
5377016 sapsucker injury
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
5377054 soil compaction
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.
5394727 sweetgum Liquidambar styraciflua Liquidambar styraciflua ‘Rotundiloba’
5394725 sweetgum Liquidambar styraciflua Liquidambar styraciflua ‘Rotundiloba'
5394719 urban ecosystem Commercial arboriculture.
5394708 emerald ash borer Agrilus planipennis "D" shaped exit hole
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.
5394646 Meeting, unknown location Risk assessment, consulting, job-site meeting.
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
5394581 crabapple and apple Malus spp.
5394578 mulching
5394680 emerald ash borer Agrilus planipennis Bumper sticker aimed at raising awarness of the fact that firewood is one of the key ways that many insects and diseases can be transported. 
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

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