Arborist training

Lesson 1 • Tree Physiology and Stress Response

Examines how trees respond to wounding, drought, and environmental stress through compartmentalisation. Links physiological knowledge to practical care timing and technique.

Lesson 2 • Tree Biology Fundamentals

Covers cellular structure, vascular systems, and growth processes in woody plants. Provides the biological foundation for understanding tree health and response to pruning.

Lesson 3 • The Arborist Profession

Defines the scope, responsibilities, and career pathways of a professional arborist. Establishes context for all subsequent technical training.

Lesson 1 • Fall Protection Systems

Introduces harness types, lanyards, and anchor requirements for aerial tree work. Establishes the safety framework expanded in the climbing chapter.

Lesson 2 • Cut-Resistant and Body Protection

Details chainsaw-protective chaps, gloves, and high-visibility clothing requirements. Ensures learners select appropriate protection for ground and aerial tasks.

Lesson 3 • Hazard Recognition and Risk Assessment

Introduces systematic site evaluation to identify struck-by, fall, and electrical hazards. Forms the decision-making basis for all subsequent safety protocols.

Lesson 4 • Emergency Response and First Aid

Prepares learners to respond to common arborist emergencies including falls, lacerations, and electrical contact. Integrates with site hazard planning covered earlier in the chapter.

Lesson 1 • Wood Chippers and Brush Equipment

Covers safe feeding, clearing jams, and maintenance of drum and disc chippers. Supports efficient debris management in all tree work operations.

Lesson 2 • Aerial Lift and Bucket Truck Use

Introduces aerial work platform operation, load limits, and positioning for tree work. Provides equipment knowledge needed before aerial pruning tasks.

Lesson 3 • Chainsaw Operation and Safety

Teaches chainsaw components, safe starting, cutting positions, and kickback prevention. Chainsaw competency is prerequisite for felling and aerial cutting chapters.

Lesson 4 • Tool Inspection and Maintenance Programmes

Establishes daily, weekly, and seasonal inspection schedules for all arborist equipment. Reduces downtime and ensures tools perform safely throughout the training programme.

Lesson 1 • Mature Tree Crown Management

Addresses crown raising, reduction, and restoration pruning for large established trees. Applies all pruning principles to high-value, high-risk mature specimens.

Lesson 2 • Structural Pruning for Young Trees

Focuses on establishing a central leader, subordinating co-dominant stems, and spacing scaffold branches. Early structural work reduces costly corrective pruning later.

Lesson 3 • Pruning Objectives and Tree Response

Defines clearance, structural, and hazard-reduction pruning goals and how trees respond biologically. Frames all subsequent cutting decisions within a health-first philosophy.

Lesson 4 • Pruning Cut Anatomy and Execution

Teaches branch collar location, three-cut method, and flush-cut avoidance for proper wound closure. Correct cut placement is the single most impactful pruning skill.

Lesson 1 • Aerial Rescue and Self-Rescue

Trains learners to perform and assist in rescues of incapacitated climbers from the canopy. Fulfils regulatory requirements for aerial rescue competency before independent climbing.

Lesson 2 • Aerial Pruning and Chainsaw Use

Applies pruning principles and chainsaw skills to aerial cutting with proper body positioning. Integrates PPE, climbing, and pruning competencies into a unified workflow.

Lesson 3 • Moving Rope System Techniques

Covers single-rope technique with mechanical ascenders for efficient vertical travel. Expands climbing capability for tall trees and complex canopy navigation.

Lesson 4 • Rope and Rigging Fundamentals

Introduces rope construction, strength ratings, knots, and hardware used in tree climbing. Provides the technical vocabulary and material knowledge for all climbing systems.

Lesson 1 • Structural Defect Identification

Teaches visual detection of cracks, cavities, included bark, and root defects indicating structural weakness. Accurate defect identification drives appropriate risk ratings.

Lesson 2 • Tree Risk Assessment Frameworks

Introduces qualitative and quantitative risk rating systems used by professional arborists. Establishes a consistent evaluation language for all subsequent assessment work.

Lesson 3 • Cabling, Bracing, and Supplemental Support

Details installation of static and dynamic cabling systems to reduce failure risk in defective trees. Provides a mitigation option between removal and no action.

Lesson 4 • Risk Communication and Documentation

Trains learners to write clear risk assessment reports and communicate findings to property owners. Accurate documentation protects both the arborist and the client.

Lesson 1 • Crane-Assisted Tree Removal

Covers communication protocols, rigging attachment, and lift planning for crane-assisted removals. Expands removal capability to large trees in highly constrained sites.

Lesson 2 • Conventional Felling Techniques

Teaches open-face, conventional, and bore-cut notch methods for controlled directional felling. Builds on chainsaw skills to execute precise, predictable felling cuts.

Lesson 3 • Felling Assessment and Planning

Covers lean analysis, hinge wood calculation, and escape route selection before any felling cut. Thorough pre-felling planning is the primary determinant of removal safety.

Lesson 4 • Stump Grinding and Site Restoration

Details stump grinder operation, grinding depth, and debris management after tree removal. Completes the removal workflow and prepares sites for replanting or landscaping.

Lesson 1 • Pesticide Application and Safety

Trains learners in label reading, mixing, application equipment calibration, and applicator safety. Regulatory compliance and environmental stewardship frame all pesticide decisions.

Lesson 2 • Insect Pest Identification and Management

Covers boring, defoliating, and sucking insect pests with emphasis on life cycle and monitoring. Integrates biological, cultural, and chemical control options.

Lesson 3 • Fertilisation and Soil Amendment

Teaches macro- and micronutrient roles, soil testing interpretation, and fertiliser application methods. Connects soil science to practical nutrient management for urban trees.

Lesson 4 • Common Tree Diseases

Identifies fungal, bacterial, and viral diseases by symptom, causal agent, and disease cycle. Accurate diagnosis is prerequisite to selecting effective treatment strategies.