Safety Harnesses and Ropes

Harness Inspection and Maintenance

Harness Inspection and Maintenance: Your Lifeline Depends on It


Safety harnesses and ropes are the last line of defense for workers at height. Theyre what stand between a slip, trip, or fall and a potentially devastating injury. But like any piece of life-saving equipment, they require regular inspection and maintenance to ensure theyre up to the task. Think of it like checking your car brakes – you wouldnt want to find out theyre faulty when you need them most.


Inspecting your harness should become second nature. Before every use, take a few minutes to look it over carefully. Check the webbing for any signs of fraying, cuts, or excessive wear. Pay close attention to the stitching, buckles, and D-rings, looking for any damage or distortion. If your harness has been involved in a fall, even a small one, retire it immediately. That seemingly minor drop could have compromised its integrity, making it unsafe for future use.


Ropes require similar scrutiny. Look for cuts, abrasions, or discoloration. Feel along the rope for any soft or stiff spots, which could indicate internal damage. Check the ends for proper whipping or termination. And just like harnesses, any rope involved in a fall should be retired. Dont take chances with your safety.


Maintenance is equally important. Keep your harness and ropes clean and dry. Store them in a cool, dry place away from direct sunlight, chemicals, or sharp objects. Avoid exposing them to extreme temperatures or moisture, as this can weaken the materials.


Remember, a few minutes spent inspecting and maintaining your equipment can save your life. Dont cut corners when it comes to your safety. Make harness inspection and maintenance a non-negotiable part of your routine. Its a small investment that pays huge dividends in peace of mind and well-being.

Harness Inspection and Maintenance

Rope Selection and Care

Rope selection and care are absolutely crucial when it comes to safety harnesses and their effectiveness. Think of it like this: your harness is your seatbelt, but the rope is what actually keeps you from hitting the ground. Choosing the wrong rope or neglecting its maintenance is like wearing a seatbelt while its frayed and about to snap – not a good situation!


First, lets talk about picking the right rope. Different jobs require different ropes. Are you rock climbing? Youll need a dynamic rope designed to stretch and absorb the shock of a fall. Working at height on a construction site? A static rope with minimal stretch is your best bet. Choosing the wrong type could be disastrous. Diameter also matters; thicker ropes are generally stronger, but also heavier and less flexible. Consider the balance between strength and manageability for your specific task.


Once youve got the right rope, taking care of it is paramount. Regular inspections are key. Look for cuts, abrasions, or any signs of wear and tear. Sharp edges, chemicals, and even prolonged exposure to sunlight can weaken a rope. Store your ropes properly, away from moisture and excessive heat, ideally in a rope bag to keep them clean and organized. And remember, if you have any doubts about the integrity of your rope, retire it. Its not worth risking your safety.


Essentially, treating your ropes with respect is treating your own life with respect. Proper rope selection and diligent care are fundamental to ensuring that your safety harness system performs as intended, keeping you safe and secure at height.

Safe Climbing Techniques and Practices

Safety harnesses and ropes are absolutely fundamental to safe climbing, whether youre scaling a crag, an ice wall, or an artificial climbing structure. Think of them as your backup singers – you hope you never need them to take the lead, but if you do, you really, really need them to be there and be on point.


A good harness should fit snugly, distributing weight evenly across your hips and thighs. Before every climb, double-check that its fastened correctly – buckles secure, leg loops tight but not constricting. Its also crucial to inspect your harness regularly for any signs of wear and tear. Frayed webbing, loose stitching, or damaged buckles are all red flags that scream "retirement time!" Dont mess around with a compromised harness; your life literally depends on it.


Ropes are equally vital. Dynamic climbing ropes are designed to stretch, absorbing the impact of a fall. This stretch is what saves you from a bone-jarring (or bone-breaking) stop. When inspecting your rope, look for any cuts, abrasions, or soft spots. Exposure to chemicals, sunlight, and even just repeated use can weaken a rope over time. If youre unsure about its condition, err on the side of caution and replace it. Its a small price to pay for peace of mind.


Beyond the gear itself, understanding proper techniques is paramount. Learning how to tie in correctly, using a figure-eight follow-through or a bowline on a bight, is non-negotiable. Practice these knots until they become second nature. Belaying is another critical skill. A vigilant belayer provides a crucial safety net, managing the rope and arresting a fall. Communication between climber and belayer is key, using clear commands to avoid misunderstandings.


Finally, remember that climbing is inherently risky. Even with the best gear and techniques, accidents can happen. Never climb beyond your abilities, and always choose routes that are appropriate for your skill level. Climbing with a partner you trust, someone who understands safe climbing practices, is one of the smartest things you can do. Stay safe, climb smart, and enjoy the vertical world!

Safe Climbing Techniques and Practices
Emergency Procedures and Rescue Plans

Emergency Procedures and Rescue Plans

Emergency procedures and rescue plans are absolutely crucial when working with safety harnesses and ropes. Think about it – these are your lifelines when youre working at height. If something goes wrong, you need a clear, practiced plan to get yourself or a coworker back to safety quickly and efficiently. No one wants to be dangling from a rope for longer than necessary, or worse, be injured further by a botched rescue.


A solid emergency procedure starts with prevention. Regularly inspecting your equipment is key. Check for wear and tear on the ropes, fraying, cuts, or anything that looks out of place. The same goes for harnesses and connectors – buckles, D-rings, lanyards, everything needs a thorough once-over. And dont just rely on visual inspections; follow manufacturer recommendations for more in-depth checks.


But even with the best prevention, things can still happen. Thats why a well-defined rescue plan is essential. This plan should be specific to the worksite and cover different scenarios, like suspension trauma, falls into confined spaces, or unconsciousness. It should detail how to raise or lower a suspended worker, whos responsible for what, and the contact information for emergency services.


Practice is just as important. Regular drills help everyone familiarize themselves with the procedures and equipment, building confidence and muscle memory. Its one thing to read a plan, but quite another to execute it under pressure. These drills should include different scenarios and involve everyone on the team, so everyone knows their role and can react quickly and effectively in a real emergency.


Finally, communication is paramount. Everyone needs to know how to communicate effectively during an emergency, whether its using hand signals, radios, or shouting. Clear communication ensures that everyone is on the same page and can coordinate the rescue efficiently. Remember, in a rescue situation, every second counts.


So, in short, when it comes to safety harnesses and ropes, emergency procedures and rescue plans arent just a box to tick – theyre a critical part of staying safe. They require careful planning, regular practice, and clear communication to ensure that everyone goes home safely at the end of the day.

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

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  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

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  • 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

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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

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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.
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See also

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References

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  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]

 

 
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

[edit]
 

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

[edit]

United States

[edit]

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

[edit]

See also

[edit]

References

[edit]
  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.
[edit]
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Danca Vikova

(5)

I called five different companies in the area, Rudy is the only one that not only answered but was able to come out and give an estimate and complete our project.

Jiri Hilser

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A saddle-style harness designed specifically for arborist work. These offer optimal mobility and attachment points for ropes and other gear.
A: Kernmantle rope made of nylon or polyester, with diameters typically ranging from 11.5mm to 13mm, is standard.
A: Before every use, check for cuts, fraying, discoloration, or stiffness in the ropes. Inspect the harness stitching, buckles, and D-rings for any signs of wear or damage.
A: Follow manufacturer guidelines, but generally ropes should be retired after heavy use or any significant fall. Harnesses should be replaced every 3-5 years depending on frequency of use and storage conditions. Even without apparent damage, UV exposure and wear can weaken them over time.