Emergency Procedures

First Aid and Basic Life Support for Tree Trimming Injuries

Tree trimming, while necessary for maintaining healthy trees and safe properties, comes with inherent risks. A falling branch, a chainsaw slip, or even a simple misstep can lead to serious injuries. Thats why having a solid grasp of first aid and basic life support (BLS) is crucial for anyone involved in tree work. Knowing what to do in those critical first few minutes can be the difference between a minor incident and a life-altering tragedy.


Common tree trimming injuries include cuts, lacerations, and punctures from sharp tools, fractures and sprains from falls, and eye injuries from flying debris. First aid for these situations begins with assessing the scene for safety. Dont rush in; ensure the area is secure before approaching the injured person. Once safe, check for responsiveness and breathing. If the person is unresponsive and not breathing, immediately call emergency services and begin CPR if youre trained.


For bleeding injuries, apply direct pressure to the wound using a clean cloth. Elevate the injured limb if possible. If the bleeding is severe or doesnt stop, continue applying pressure and wait for professional medical help. In cases of suspected fractures or sprains, immobilize the injured area and avoid moving the person unnecessarily. Apply a cold pack wrapped in a cloth to reduce swelling and pain. For eye injuries, do not attempt to remove any embedded objects. Cover the eye with a clean pad and seek immediate medical attention.


Beyond these immediate actions, understanding basic life support can be invaluable. BLS encompasses CPR and how to recognize and respond to choking. While a comprehensive BLS certification is highly recommended for anyone working in tree trimming, even basic knowledge can save lives. Knowing how to check for a pulse, perform chest compressions, and provide rescue breaths can bridge the gap until paramedics arrive.


In conclusion, tree trimming is inherently risky, and accidents can happen. Being prepared with first aid and BLS knowledge is not just a good idea; its a responsibility. Regularly refreshing these skills and having a well-stocked first aid kit readily available are vital steps towards ensuring a safe and responsive work environment. Remember, quick and appropriate action in an emergency can significantly impact the outcome and potentially save a life.

First Aid and Basic Life Support for Tree Trimming Injuries

Emergency Contact List and Communication Protocols

Having a solid emergency plan is crucial, and a key part of that plan is a well-maintained emergency contact list paired with clear communication protocols. Think of it like this: you have a fire extinguisher, but if you dont know how to use it, its not much help. Similarly, having a list of numbers doesnt do much good if you havent figured out how and when to use it.


Your emergency contact list should go beyond just immediate family. Include neighbors, close friends, your doctor, your childrens school, and even important work contacts if relevant. Consider different scenarios: who would you need to reach if theres a house fire versus a medical emergency while youre traveling? Keep the list both digitally and as a hard copy in a readily accessible location. Digital copies can be easily updated and shared, while a hard copy is essential if power or internet access is disrupted.


Just as important as who to contact is how. Establish clear communication protocols in advance. For example, designate one person as the primary point of contact to avoid duplicated efforts and conflicting information. This person can then disseminate information to the rest of the list. Decide on communication channels: will you use text messages, phone calls, or a social media group? Consider the pros and cons of each. Text messages can be quick and reach multiple people simultaneously, but they might get lost in the shuffle. Phone calls are more personal but can be time-consuming.


Regularly review and update your list. People move, change phone numbers, and family situations evolve. An outdated list can be frustrating and even dangerous in a real emergency. Make updating your list a regular part of your routine, perhaps tying it to another recurring event like changing your smoke detector batteries.


By taking the time to create a comprehensive emergency contact list and establish clear communication protocols, youll be much better prepared to handle any crisis that comes your way. Its a small investment of time that can make a huge difference when it matters most.

Equipment Malfunction and Hazardous Material Procedures

Emergency procedures are all about being prepared for the unexpected, and two key areas where preparation is crucial are equipment malfunctions and hazardous material incidents. Think of it like this: you have a fire extinguisher in your kitchen, right? You probably havent used it (hopefully!), but knowing its there and knowing how to use it brings peace of mind. The same principle applies to these procedures.


Equipment malfunctions can range from a minor printer jam to a critical system failure. A good emergency procedure outlines steps to take when equipment acts up. First, safety: Is anyone in immediate danger? If so, address that first. Then, contain the problem. Can you shut down the malfunctioning equipment? Is there a risk of fire, electrical shock, or other hazards? Next, assess the damage and report the issue according to your workplace protocol. Dont try to be a hero and fix complex machinery yourself unless youre specifically trained to do so. A well-defined procedure helps prevent further damage and ensures everyones safety.


Hazardous materials require an even more cautious approach. These situations can escalate quickly, so understanding the risks is paramount. Procedures for hazardous material incidents focus on identification, containment, and communication. Is the material flammable, corrosive, or toxic? Knowing the properties of the substance dictates the appropriate response. Containment might involve closing doors, activating ventilation systems, or using specialized spill kits. Clear communication is essential: alerting colleagues, contacting emergency responders, and providing accurate information about the material are all critical steps. These procedures often involve specific regulations and require specialized training, so staying up-to-date is vital.


In both cases – equipment malfunctions and hazardous material incidents – documentation is key. Keeping records of what happened, what actions were taken, and the outcome helps improve future responses. Think of it as a learning opportunity. By analyzing past incidents, we can identify weaknesses in our procedures and make them even stronger. Just like regular fire drills, practicing these procedures ensures a swift and effective response in a real emergency, protecting both people and property.

Equipment Malfunction and Hazardous Material Procedures
Post-Incident Reporting and Analysis

Post-Incident Reporting and Analysis

Post-incident reporting and analysis is absolutely crucial after any emergency. Think of it like a debrief after a big game – you need to figure out what worked, what didnt, and how to play better next time. In the context of emergency procedures, this "game" could be anything from a fire drill to a real fire, a power outage, a security breach, or a medical emergency. The point is, regardless of the specific event, taking the time to analyze the response is vital for improving future performance.


A good post-incident report shouldnt just be a dry recounting of events. It should delve into the specifics of how the emergency procedures were followed (or not followed), identify any communication breakdowns, highlight successes and areas for improvement, and ultimately, offer actionable recommendations. For example, if a fire drill revealed that people struggled to locate the assembly point, the report should note this and suggest clearer signage or better pre-drill communication. If a real emergency highlighted a lack of trained first aiders, the recommendation might be to invest in first aid training for staff.


The analysis part is where we really learn. Its where we move beyond simply identifying what happened and start asking "why?" Why did people struggle to find the assembly point? Was it poor signage, inadequate training, or something else entirely? Understanding the underlying causes of any issues allows us to develop targeted solutions that address the root of the problem, rather than just putting a band-aid on the symptoms.


Finally, and perhaps most importantly, post-incident reports shouldnt be filed away and forgotten. They should be used to update and improve existing emergency procedures. This is a continuous improvement cycle: we respond to an emergency, we analyze the response, we learn from the experience, and we refine our procedures to be better prepared for next time. This proactive approach is the key to minimizing the impact of future emergencies and ensuring the safety and well-being of everyone involved.

 
Tree trimmer on tracked treads
(Click for video)

Tree care is the application of arboricultural methods like pruning, trimming, and felling/thinning[1] in built environments. Road verge, greenways, backyard and park woody vegetation are at the center of attention for the tree care industry. Landscape architecture and urban forestry[2][3] also set high demands on professional tree care. High safety standards against the dangers of tree care have helped the industry evolve. Especially felling in space-limited environments poses significant risks: the vicinity of power or telephone lines, insufficient protective gear (against falling dead wood, chainsaw wounds, etc.) and narrow felling zones with endangered nearby buildings, parking cars, etc. The required equipment and experience usually transcends private means and is often considered too costly as a permanent part of the public infrastructure. In singular cases, traditional tools like handsaws may suffice, but large-scale tree care usually calls for heavy machinery like cranes, bucket trucks, harvesters, and woodchippers.

Road side trees are especially prone to abiotic stress by exhaust fumes, toxic road debris, soil compaction, and drought which makes them susceptible to fungal infections and various plant pests[4] like the spotted lantern fly.[5] When tree removal is not an option, because of road ecology considerations, the main challenge is to achieve road safety (visibility of road signs, blockage-free lanes, etc.) while maintaining tree health.

Tree removal

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While the perceived risk of death by falling trees (a part of the "tree risk" complex) is influenced by media and often hyped (the objective risk has been reported to be close to 1 : 10.000.000, almost as low as death by lightning),[6] singular events have encouraged a "proactive" stance so that even lightly damaged trees are likely to be removed in urban and public traffic surroundings.[3] As a tree ages and nears the end of its safe useful life expectancy (SULE),[7] its perceived amenity value is decreased greatly. A risk assessment normally carried out by local council's arborist to determine the best course of action.[8] As with all public green spaces, trees in green urban spaces and their careful conservation is sometimes in conflict with aggressive urban development even though it is often understood how urban trees contribute to liveability of suburbs and cities both objectively (reduction of urban heat island effect, etc.) and subjectively.[9][10][11][12] Tree planting programs implemented by a growing number of cities, local councils and organizations is mitigating the losses and in most cases increasing the number of trees in suburbia.[13] Programs include the planting of 2 trees for every 1 tree removed, while some councils are paying land owners to keep trees instead of removing them for farming or construction.[14]

Standards

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United States

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The voluntary industry consensus standards developed by TCIA, resulted in the ANSI A300 standard, the generally accepted industry standard for tree care practices including trees, shrubs, and other woody plants.[15] It includes the following parts:

  1. Pruning
  2. Soil management
  3. Supplemental support systems
  4. Lightning protection systems
  5. Management
  6. Planting and transplanting
  7. Integrated vegetation management
  8. Root management standard
  9. Tree risk assessment
  10. Integrated pest management
  11. Tree Service

Professional associations

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See also

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References

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  1. ^ Council, Cornwall. "Practical Guidelines for Young Tree Care - Cornwall Council". www.cornwall.gov.uk. Retrieved 2018-04-06.
  2. ^ "Urban Forestry Management in Denver Colorado - Denver Tree Service - Tree Removal - Snow Removal". environmentaltreecarellc.com. Retrieved 2018-06-11.
  3. ^ a b "Urban Forestry Operations". City of Toronto. Urban Forestry maintains 4.1 million trees on public property, which includes an estimated 3.5 million trees within Toronto's parks and ravines, and approximately 600,000 trees on City streets. ... The focus of our maintenance service is shifting progressively from reactive maintenance to proactive maintenance.
  4. ^ Frankfurt, Umweltamt. "Tree protection in Frankfurt : Stadt Frankfurt am Main | Dezernat Umwelt und Gesundheit | Umweltamt". frankfurt-greencity.de (in German). Retrieved 2018-04-06.
  5. ^ "spotted lantern fly".
  6. ^ "EPA – Home" (PDF).
  7. ^ "NOTES ON SAFE USEFUL LIFE EXPECTANCY (SULE RATING) AS USED IN TREE DESCRIPTION" (PDF). strathfield.nsw.gov.au.
  8. ^ Northrop, Andrew K. Koeser, Gitta Hasing, Drew McLean, and Rob (2016-12-20). "Tree Risk Assessment Methods: A Comparison of Three Common Evaluation Forms". edis.ifas.ufl.edu. Retrieved 2018-04-06.cite web: CS1 maint: multiple names: authors list (link)
  9. ^ "Greening Our Streets Street Tree Management Plan" (PDF). City of Whittlesea, Australia. 2016.
  10. ^ Peter Mitham (2015). "Redevelopment, urban tree removal raise city residents' concerns". Business Vancouver.
  11. ^ eugenie stockmann (2016). "Are developers to blame for loss of tree cover in urban areas?". The Green Swing.
  12. ^ Dinh Muoi, Thanh Nien News (2016). "Ho Chi Minh City announces massive tree removal plan for metro station". Archived from the original on April 14, 2016. Ho Chi Minh City has announced a plan to move and cut down 300 trees on Ton Duc Thang Street in District 1 to make space for a bridge connecting to District 2 and a metro station.
  13. ^ "Buy Trees and Learn About Trees - Visit our Online Nursery". www.arborday.org. Retrieved 2018-04-06.
  14. ^ "NVIM Quick Reference Guide. Obligations under the Biodiversity Conservation Strategy" (PDF). environment.vic.gov.au.
  15. ^ Advanced Solutions International Inc. "TCIA | A300 Standards". www.tcia.org. Retrieved 2018-04-06.
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An arborist practicing tree care: using a chainsaw to fell a eucalyptus tree in a park at Kallista, Victoria.

Arboriculture (/ˈɑːrbərɪˌkʌltʃər, ɑːrˈbɔːr-/, from Latin: arboris + culture)[1] is the cultivation, management, and study of individual trees, shrubs, vines, and other perennial woody plants. The science of arboriculture studies how these plants grow and respond to cultural practices and to their environment. The practice of arboriculture includes cultural techniques such as selection, planting, training, fertilization, pest and pathogen control, pruning, shaping, and removal.

Overview

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A person who practices or studies arboriculture can be termed an arborist or an arboriculturist. A tree surgeon is more typically someone who is trained in the physical maintenance and manipulation of trees and therefore more a part of the arboriculture process rather than an arborist. Risk management, legal issues, and aesthetic considerations have come to play prominent roles in the practice of arboriculture. Businesses often need to hire arboriculturists to complete "tree hazard surveys" and generally manage the trees on-site to fulfill occupational safety and health obligations.[citation needed]

Arboriculture is primarily focused on individual woody plants and trees maintained for permanent landscape and amenity purposes, usually in gardens, parks or other populated settings, by arborists, for the enjoyment, protection, and benefit of people.[citation needed]

Arboricultural matters are also considered to be within the practice of urban forestry yet the clear and separate divisions are not distinct or discreet.[citation needed]

Tree Benefits

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Tree benefits are the economic, ecological, social and aesthetic use, function purpose, or services of a tree (or group of trees), in its situational context in the landscape.

Environmental Benefits

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  • Erosion control and soil retention
  • Improved water infiltration and percolation
  • Protection from exposure: windbreak, shade, impact from hail/rainfall
  • Air humidification
  • Modulates environmental conditions in a given microclimate: shields wind, humidifies, provides shade
  • Carbon sequestration and oxygen production

Ecological Benefits

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  • Attracting pollinators
  • Increased biodiversity
  • Food for decomposers, consumers, and pollinators
  • Soil health: organic matter accumulation from leaf litter and root exudates (symbiotic microbes)
  • Ecological habitat

Socioeconomic Benefits

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  • Increases employment: forestry, education, tourism
  • Run-off and flood control (e.g. bioswales, plantings on slopes)
  • Aesthetic beauty: parks, gatherings, social events, tourism, senses (fragrance, visual), focal point
  • Adds character and prestige to the landscape, creating a "natural" feel
  • Climate control (e.g shade): can reduce energy consumption of buildings
  • Privacy and protection: from noise, wind
  • Cultural benefits: eg. memorials for a loved one
  • Medical benefits: eg. Taxus chemotherapy
  • Materials: wood for building, paper pulp
  • Fodder for livestock
  • Property value: trees can increase by 10–20%[citation needed][2]
  • Increases the amount of time customers will spend in a mall, strip mall, shopping district[citation needed]

Tree Defects

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A tree defect is any feature, condition, or deformity of a tree that indicates weak structure or instability that could contribute to tree failure.

Common types of tree defects:

Codominant stems: two or more stems that grow upward from a single point of origin and compete with one another.

  • common with decurrent growth habits
  • occurs in excurrent trees only after the leader is killed and multiple leaders compete for dominance

Included bark: bark is incorporated in the joint between two limbs, creating a weak attachment

  • occurs in branch unions with a high attachment angle (i.e. v-shaped unions)
  • common in many columnar/fastigiate growing deciduous trees

Dead, diseased, or broken branches:

  • woundwood cannot grow over stubs or dead branches to seal off decay
  • symptoms/signs of disease: e.g. oozing through the bark, sunken areas in the bark, and bark with abnormal patterns or colours, stunted new growth, discolouration of the foliage

Cracks

  • longitudinal cracks result from interior decay, bark rips/tears, or torsion from wind load
  • transverse cracks result from buckled wood, often caused by unnatural loading on branches, such as lion's tailing.
  • Seams: bark edges meet at a crack or wound
  • Ribs: bulges, indicating interior cracks

Cavity and hollows: sunken or open areas wherein a tree has suffered injury followed by decay. Further indications include: fungal fruiting structures, insect or animal nests.

Lean: a lean of more than 40% from vertical presents a risk of tree failure

Taper: change in diameter over the length of trunks branches and roots

Epicormic branches (water sprouts in canopy or suckers from root system): often grow in response to major damage or excessive pruning

Roots:

  • girdling roots compress the trunk, leading to poor trunk taper, and restrict vascular flow
  • kinked roots provide poor structural support; the kink is a site of potential root failure
  • circling roots occurs when roots encounter obstructions/limitations such as a small tree well or being grown too long in a nursery pot; these cannot provide adequate structural support and are limited in accessing nutrients and water
  • healthy soil texture and depth, drainage, water availability, makes for healthy roots

Tree Installation

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Proper tree installation ensures the long-term viability of the tree and reduces the risk of tree failure.

Quality nursery stock must be used. There must be no visible damage or sign of disease. Ideally the tree should have good crown structure. A healthy root ball should not have circling roots and new fibrous roots should be present at the soil perimeter. Girdling or circling roots should be pruned out. Excess soil above the root flare should be removed immediately, since it presents a risk of disease ingress into the trunk.

Appropriate time of year to plant: generally fall or early spring in temperate regions of the northern hemisphere.

Planting hole: the planting hole should be 3 times the width of the root ball. The hole should be dug deep enough that when the root ball is placed on the substrate, the root flare is 3–5cm above the surrounding soil grade. If soil is left against the trunk, it may lead to bark, cambium and wood decay. Angular sides to the planting hole will encourage roots to grow radially from the trunk, rather than circling the planting hole. In urban settings, soil preparation may include the use of:

  • Silva cells: suspended pavement over modular cells containing soil for root development
  • Structural soils: growing medium composed of 80% crushed rock and 20% loam, which supports surface load without it leading to soil compaction

Tree wells: a zone of mulch can be installed around the tree trunk to: limit root zone competition (from turf or weeds), reduce soil compaction, improve soil structure, conserve moisture, and keep lawn equipment at a distance. No more than 5–10cm of mulch should be used to avoid suffocating the roots. Mulch must be kept approximately 20cm from the trunk to avoid burying the root flare. With city trees additional tree well preparation includes:

Tree grates/grill and frames: limit compaction on root zone and mechanical damage to roots and trunk

Root barriers: forces roots to grow down under surface asphalt/concrete/pavers to limit infrastructure damage from roots

Staking: newly planted, immature trees should be staked for one growing season to allow for the root system to establish. Staking for longer than one season should only be considered in situations where the root system has failed to establish sufficient structural support. Guy wires can be used for larger, newly planted trees. Care must be used to avoid stem girdling from the support system ties.

Irrigation: irrigation infrastructure may be installed to ensure a regular water supply throughout the lifetime of the tree. Wicking beds are an underground reservoir from which water is wicked into soil. Watering bags may be temporarily installed around tree stakes to provide water until the root system becomes established. Permeable paving allows for water infiltration in paved urban settings, such as parks and walkways.

UK

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Within the United Kingdom trees are considered as a material consideration within the town planning system and may be conserved as amenity landscape[3] features.

The role of the Arborist or Local Government Arboricultural Officer is likely to have a great effect on such matters. Identification of trees of high quality which may have extensive longevity is a key element in the preservation of trees.

Urban and rural trees may benefit from statutory protection under the Town and Country Planning[4] system. Such protection can result in the conservation and improvement of the urban forest as well as rural settlements.

Historically the profession divides into the operational and professional areas. These might be further subdivided into the private and public sectors. The profession is broadly considered as having one trade body known as the Arboricultural Association, although the Institute of Chartered Foresters offers a route for professional recognition and chartered arboriculturist status.

The qualifications associated with the industry range from vocational to Doctorate. Arboriculture is a comparatively young industry.

See also

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References

[edit]
  1. ^ "arboriculture". Dictionary.com Unabridged (Online). n.d.
  2. ^ Orta, Emmanuel (2025-04-23). "Tree Service Denver". Tree Service Denver.
  3. ^ "Amenity landscapes • Environment Guide". www.environmentguide.org.nz. Retrieved 2020-04-28.
  4. ^ "Town and Country Planning Association". Town and Country Planning Association. Retrieved 2020-04-28.
  • Harris, Richard W. (1983). Arboriculture: Care of Trees, Shrubs, and Vines in the Landscape. Englewood Cliffs, New Jersey: Prentice-Hall, Inc. pp. 2–3. ISBN 0-13-043935-5.
  • "arboriculture". Merriam-Webster's Collegiate Dictionary, Eleventh Edition. Merriam-Webster.
  • "arboriculture". Encyclopædia Britannica Online. 2007.
  • "arboriculture". The American Heritage Dictionary of the English Language, Fourth Edition Online. Houghton Mifflin Company. 2000.
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An arborist using a chainsaw to cut a eucalyptus tree in a public park
Arborists in Ontario
Two arborists climbing and dismantling a Norway Maple in Ontario, Canada

An arborist, or (less commonly) arboriculturist, is a professional in the practice of arboriculture, which is the cultivation, management, and study of individual trees, shrubs, vines, and other perennial woody plants in dendrology and horticulture.[citation needed]

Arborists generally focus on the health and safety of individual plants and trees, rather than managing forests or harvesting wood (silviculture or forestry). An arborist's scope of work is therefore distinct from that of either a forester or a logger.[citation needed]

Scope of work

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An ISA Certified municipal arborist examining a Japanese Hemlock at Hoyt Arboretum in Portland, Oregon

In order for arborists to work near power wires, either additional training is required or they need to be certified as a Qualified Line Clearance Arborist or Utility Arborist (there may be different terminology for various countries). There is a variety of minimum distances that must be kept from power wires depending on voltage, however the common distance for low voltage lines in urban settings is 10 feet (about 3 metres).[1]

Arborists who climb (as not all do) can use a variety of techniques to ascend into the tree. The least invasive, and most popular technique used is to ascend on rope. There are two common methods of climbing, Stationary Rope System (SRS) and Moving Rope System (MRS). When personal safety is an issue, or the tree is being removed, arborists may use 'spikes', (also known as 'gaffs' or 'spurs') attached to their chainsaw boots with straps to ascend and work. Spikes wound the tree, leaving small holes where each step has been.[citation needed]

An arborist's work may involve very large and complex trees, or ecological communities and their abiotic components in the context of the landscape ecosystem. These may require monitoring and treatment to ensure they are healthy, safe, and suitable to property owners or community standards. This work may include some or all of the following: planting; transplanting; pruning; structural support; preventing, or diagnosing and treating phytopathology or parasitism; preventing or interrupting grazing or predation; installing lightning protection; and removing vegetation deemed as hazardous, an invasive species, a disease vector, or a weed.[citation needed]

Arborists may also plan, consult, write reports and give legal testimony. While some aspects of this work are done on the ground or in an office, much of it is done by arborists who perform tree services and who climb the trees with ropes, harnesses and other equipment. Lifts and cranes may be used too. The work of all arborists is not the same. Some may just provide a consulting service; others may perform climbing, pruning and planting: whilst others may provide a combination of all of these services.[2]

Qualifications

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An arborist disassembling a tree using a crane and bucket

Arborists gain qualifications to practice arboriculture in a variety of ways and some arborists are more qualified than others. Experience working safely and effectively in and around trees is essential. Arborists tend to specialize in one or more disciplines of arboriculture, such as diagnosis and treatment of pests, diseases and nutritional deficiencies in trees, climbing and pruning, cabling and lightning protection, or consultation and report writing. All these disciplines are related to one another and some arborists are very well experienced in all areas of tree work, however not all arborists have the training or experience to properly practice every discipline.[citation needed]

Arborists choose to pursue formal certification, which is available in some countries and varies somewhat by location. An arborist who holds certification in one or more disciplines may be expected to participate in rigorous continuing education requirements to ensure constant improvement of skills and techniques.[citation needed]

In Australia, arboricultural education and training are streamlined countrywide through a multi-disciplinary vocational education, training, and qualification authority called the Australian Qualifications Framework, which offers varying levels of professional qualification. Government institutions including Technical and Further Education (TAFE) offer Certificate III or a diploma in arboriculture as well as some universities.[3][4] There are also many private institutions covering similar educational framework in each state. Recognition of prior learning is also an option for practicing arborists with 10 or more years of experience with no prior formal training. It allows them to be assessed and fast track their certification.[citation needed]

In France, a qualified arborist must hold a Management of Ornamental Trees certificate, and a qualified arborist climber must hold a Pruning and Care of Trees certificate; both delivered by the French Ministry of Agriculture.[5][6]

In the UK, an arborist can gain qualifications up to and including a master's degree. College-based courses include further education qualifications, such as national certificate, national diploma, while higher education courses in arboriculture include foundation degree, bachelor's degree and master's degree.[citation needed]

In the US, a Certified Arborist (CA) is a professional who has over three years of documented and verified experience and has passed a rigorous written test from the International Society of Arboriculture. Other designations include Municipal Specialist, Utility Specialist and Board Certified Master Arborist (BCMA). The USA and Canada additionally have college-based training which, if passed, will give the certificate of Qualified Arborist. The Qualified Arborist can then be used to offset partial experience towards the Certified Arborist.

Tree Risk Assessment Qualified credential (TRAQ), designed by the International Society of Arboriculture, was launched in 2013. At that time people holding the TRACE credential were transferred over to the TRAQ credential.[citation needed]

In Canada, there are provincially governed apprenticeship programs that allow arborists' to work near power lines upon completion. These apprenticeship programs must meet the provincial reregulations (For example, in B.C. they must meet WorkSafeBC G19.30), and individuals must ensure they meet the requirements of the owner of the power system.[citation needed]

Cultural practices

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Arborists may use specialised vehicles to gain access to trees, such as this Unimog equipped with a power take-off driven woodchipper

Trees in urban landscape settings are often subject to disturbances, whether human or natural, both above and below ground. They may require care to improve their chances of survival following damage from either biotic or abiotic causes. Arborists can provide appropriate solutions, such as pruning trees for health and good structure, for aesthetic reasons, and to permit people to walk under them (a technique often referred to as "crown raising"), or to keep them away from wires, fences, and buildings (a technique referred to as "crown reduction").[7] Timing and methods of treatment depend on the species of tree and the purpose of the work. To determine the best practices, a thorough knowledge of local species and environments is essential.[citation needed]

There can be a vast difference between the techniques and practices of professional arborists and those of inadequately trained tree workers. Some commonly offered "services" are considered unacceptable by modern arboricultural standards and may seriously damage, disfigure, weaken, or even kill trees. One such example is tree topping, lopping, or "hat-racking", where entire tops of trees or main stems are removed, generally by cross-cutting the main stem(s) or leaders, leaving large unsightly stubs. Trees that manage to survive such treatment are left prone to a spectrum of detrimental effects, including vigorous but weakly attached regrowth, pest susceptibility, pathogen intrusion, and internal decay.[8]

Pruning should only be done with a specific purpose in mind. Every cut is a wound, and every leaf lost is removal of photosynthetic potential. Proper pruning can be helpful in many ways, but should always be done with the minimum amount of live tissue removed.[9]

In recent years, research has proven that wound dressings such as paint, tar, or other coverings are unnecessary and may harm trees. The coverings may encourage growth of decay-causing fungi. Proper pruning, by cutting through branches at the right location, can do more to limit decay than wound dressing [10]

Chemicals can be applied to trees for insect or disease control through soil application, stem injections, or spraying. Compacted or disturbed soils can be improved in various ways.[citation needed]

Arborists can also assess trees to determine the health, structure, safety, or feasibility within a landscape and in proximity to humans. Modern arboriculture has progressed in technology and sophistication from practices of the past. Many current practices are based on knowledge gained through recent research, including that of Alex Shigo, considered one "father" of modern arboriculture.[11]

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Depending on the jurisdiction, there may be a number of legal issues surrounding the practices of arborists, including boundary issues, public safety issues, "heritage" trees of community value, and "neighbour" issues such as ownership, obstruction of views, impacts of roots crossing boundaries, nuisance problems, disease or insect quarantines, and safety of nearby trees or plants that may be affected.[citation needed]

Arborists are frequently consulted to establish the factual basis of disputes involving trees, or by private property owners seeking to avoid legal liability through the duty of care.[12] Arborists may be asked to assess the value of a tree[13] in the process of an insurance claim for trees damaged or destroyed,[14] or to recover damages resulting from tree theft or vandalism.[15] In cities with tree preservation orders an arborist's evaluation of tree hazard may be required before a property owner may remove a tree, or to assure the protection of trees in development plans and during construction operations. Carrying out work on protected trees and hedges is illegal without express permission from local authorities,[16] and can result in legal action including fines.[17] Homeowners who have entered into contracts with a Homeowner's association (see also Restrictive covenants) may need an arborists' professional opinion of a hazardous condition prior to removing a tree, or may be obligated to assure the protection of the views of neighboring properties prior to planting a tree or in the course of pruning.[18] Arborists may be consulted in forensic investigations where the evidence of a crime can be determined within the growth rings of a tree, for example. Arborists may be engaged by one member of a dispute in order to identify factual information about trees useful to that member of the dispute, or they can be engaged as an expert witness providing unbiased scientific knowledge in a court case. Homeowners associations seeking to write restrictive covenants, or legislative bodies seeking to write laws involving trees, may seek the counsel of arborists in order to avoid future difficulties.[19]

Before undertaking works in the UK, arborists have a legal responsibility to survey trees for wildlife, especially bats, which are given particular legal protection. In addition, any tree in the UK can be covered by a tree preservation order and it is illegal to conduct any work on a tree, including deadwooding or pruning, before permission has been sought from the local council.[citation needed]

Organizations

[edit]
  • Australia Limited, a non-profit organisation, is a national organisation promoting and representing tree workers, arborists, professional tree management and urban forestry throughout Australia and the Asia-Pacific region.[20]
  • The Tree Care Industry Association (formerly the National Arborist Association) is a public and professional non-profit organization for the arboriculture field. It has more than 2,000 member companies representing over a dozen countries. TCIA's Accreditation program certifies that tree care companies that have been inspected and accredited based on adherence to industry standards for performance and safety; maintenance of trained, professional staff; and dedication to ethics and quality in business practices. In addition, they provide safety and educational programs, guidelines for tree service operations, ANSI A300 tree pruning standards, and consumer resources.[citation needed]
  • The International Society of Arboriculture, a non-profit organization, maintains a list of ISA Certified Arborists who have passed a written exam and demonstrated a basic level of knowledge in arboriculture.[21] There are also additional classifications of certified arborists with Certified Arborist/Utility Specialist for those who work near power lines, and Certified Arborist/Municipal Specialist for those who deal mostly with community trees. Other certifications exist for Certified Tree Workers, and the highest level of certification, the Board Certified Master Arborist.[citation needed]
  • The American Society of Consulting Arborists is an organization whose membership is exclusive to those with a certain level of industry experience, plus higher educational experience or continuing education; some members may achieve a higher status by fulfilling the requirements to become a Registered Consulting Arborist.[22] Consulting arborists generally specialize in the areas of ethics, law, land planning and development, and tree valuation, among others. Consulting arborists are often called on for legal testimony and report writing in various instances where a particular authority on trees is necessary for consequent actions.
  • In the UK, the professional body representing the sector is the Institute of Chartered Foresters. The trade body representing arborists is the Arboricultural Association. The association maintains a register of consultants who have demonstrated a high level of technical arboricultural knowledge and operate an Approved Contractor scheme. This scheme assesses both the technical competence and business practices of arboricultural contractors.
  • The European Arboricultural Council is a European group of multiple arboriculture organizations from various countries.
  • Plant Amnesty is a public education and advocacy group, based in Seattle, dedicated to promoting proper pruning methods. Founded in 1987, Plant Amnesty became an international resource for arborists and their clients in the mid-1990s.[23][24]

In literature

[edit]

The protagonist in Italo Calvino's novel The Baron in the Trees lives life on the ground as a boy and spends the rest of his life swinging from tree to tree in the Italian countryside. As a young man he helps the local fruit farmers by pruning their trees.[citation needed]

Notable arborists

[edit]

Some noteworthy arborists include:

  • Francis A. Bartlett – founded The Bartlett Tree Experts Co., the world's leading scientific tree and shrub care company in 1907.
  • John Chapman – pioneering U.S. frontier nurseryman and orchardist, commonly known as Johnny Appleseed.
  • Canopy Cat Rescue[25] – rescues domestic cats from tall trees; appears on Treetop Cat Rescue.
  • Sebastian Junger – author of Perfect Storm and War. Previous to becoming a journalist, Sebastian was an arborist in Massachusetts.
  • Chuck Leavell – two-time recipient of the Georgia Tree Farmer of the Year award, and author of the children's book, The Tree Farmer. In 2006 Leavell was appointed by Governor Sonny Perdue to the Georgia Land Conservation Council. He is also an accomplished jazz pianist and keyboardist for the Rolling Stones.[26]
  • Alex Shigo – considered the father of modern arboriculture.
[edit]

See also

[edit]

References

[edit]
  1. ^ American National Standards Institute Z.133- and International Brotherhood of Electrical Workers.
  2. ^ Harris, Richard W., James R. Clark, and Nelda P. Matheny: Arboriculture Integrated Management of Landscape Trees, Shrubs, and Vines, third edition; Prentice-Hall, Inc. 1999.
  3. ^ "Becoming an Arborist". Victorian Skills Gateway. Archived from the original on 2018-03-16. Retrieved 2018-03-15.
  4. ^ "Graduate Certificate in Arboriculture". University of Melbourne. Retrieved 2018-03-15.
  5. ^ "Les formations qualifiantes des arboristes : certificat de spécialisation CS " taille et soin des arbres "". Copalme (in French). Retrieved 2018-03-15.
  6. ^ "Le CFPPA à l'action sur le domaine Paul-Riquet - Enseignement et formation - Un vrai chantier pour les lycéens". La Dépêche (in French). February 23, 2017. Retrieved 2018-03-15.
  7. ^ "Pruning Standards to Maintain Landscape Trees (3)". E. Thomas Smiley, Ph. D., Plant Pathologist and Bruce R. Fraedrich, Ph. D., Plant Pathologist; Bartlett Tree Research Laboratory.
  8. ^ "Follow Proper Pruning Techniques | Earth-Kind® Landscaping". aggie-horticulture.tamu.edu.
  9. ^ "Access Trees Home". treesaccess.com. Archived from the original on 2022-03-22. Retrieved 2022-03-30.
  10. ^ https://joa.isa-arbor.com/request.asp?JournalID=1&ArticleID=1923&Type=2, Wound dressings results of studies over 13 years
  11. ^ Alex Shigo pioneered tree-friendly pruning by Ron Sullivan; San Francisco Chronicle November 15, 2006.
  12. ^ Common Law Branches Off Into New Directions; by Victor D. Merullo; Journal of Arboriculture 20(6): November 1994.
  13. ^ Landscape Tree Appraisal by David P. Mooter, et al.; University of Nebraska–Lincoln Extension; March 2004.
  14. ^ Guide for Plant Appraisal, 9th ed; by the Council of Tree and Landscape Appraisers; International Society of Arboriculture; 2000.
  15. ^ See also specific legal provisions for "tree theft" such as, for example, the Revised Code of Washington title 64.12.030 for Washington (State, USA) or similar state, provincial, or local statutes.
  16. ^ "A Guide To The Laws Of Arboriculture & Tree Legislations". Surrey Tree Surgery. Archived from the original on 4 April 2014. Retrieved 4 April 2014.
  17. ^ "Businessman fined £28,000 for felling protected yew tree". The Daily Telegraph. London. 3 June 2013. Archived from the original on 6 June 2013. Retrieved 4 April 2014.
  18. ^ Arboriculture and the Law in Canada by Julian Dunster and Susan Murray; International Society of Arboriculture; 1997.
  19. ^ Arboriculture and the Law by Victor D. Merrullo; International Society of Arboriculture; 1992.
  20. ^ "About Us". arboriculture.org.au. Archived from the original on 2016-08-08. Retrieved 2016-07-22.
  21. ^ "Verify an ISA Certification / Find a Tree Care Service". International Society of Arboriculture. Archived from the original on 27 March 2014. Retrieved 4 April 2014.
  22. ^ "American Society of Consulting Arborists – Registered Consulting Arborist". Archived from the original on 2003-02-28. Retrieved 2008-04-29.
  23. ^ "The Seattle Times: Pacific Northwest Magazine". The Seattle Times.
  24. ^ Young, Paul. "Bakersfield CA Local Online Stock Brokerage Firms | Berkeley Daily". Archived from the original on 2020-08-09. Retrieved 2019-11-08.
  25. ^ "Cat stuck in a tree in Washington". Canopy Cat Rescue. Archived from the original on 2019-11-08. Retrieved 2019-11-08.
  26. ^ "Chuck Leavell - Trees". chuckleavell.com. Archived from the original on 2007-07-03. Retrieved 2007-07-21.
[edit]

 

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911 (or your local emergency number)
Falling branches/trees, chainsaw injuries, electrical contact, falls from height, and exposure to pesticides/herbicides.
Standard First Aid and CPR-C are generally recommended; additional training for specific hazards like chainsaw operation and aerial rescue may be necessary depending on the work performed.
Helmets, eye/ear protection, chainsaw chaps, gloves, safety harnesses, and first aid kit are common. Inspections are usually conducted pre-shift, ensuring proper function and identifying damage.
Secure the scene, assess the victim, call 911 immediately, provide first aid as trained, assist emergency responders, and document the incident.