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minterne tree (2)

Professional Tree Inspection course with Lantra Certification for people with a Level 3 Qualification in place

Course Objectives

  • Recognise the role of tree inspector in risk management.
  • Identify the legal framework in the context of statute and common law that affect tree inspection and the duties and liabilities of the owner, manager and inspector.
  • Summarise how a tree system functions, what constitutes a safe tree and know that energy is required to keep the tree in a healthy/safe state.
  • Adopt a systematic and consistent methodology for carrying out visual tree inspection at an advanced level with the aid of binoculars, mallet and probes.
  • Collect data out in the field in accordance with the inspection instructions using a suitable format.
  • Recognise a range of observable mechanical and biological defects as seen in trees and confirmed by the use of textbooks where necessary.
  • Identify a range of commonly seen pests, diseases and disorders that affect tree safety, confirm their identity by the use of textbooks, and state the arboriculture significance of finding them in a field.
  • State the appropriate control/remedial measures required to eliminate or reduce risks identified in the inspection process to an acceptable level.
  • Prioritise the necessary tree/management works with time scales based on a broad category of risk assessment.
  • Identify when it is appropriate to recommend the use of decay detecting or measuring equipment, based on basic knowledge of the working principles of commonly available equipment.
  • Understanding that a balance between the remedial measure opted for and the range of benefits/values that a tree may have, requires special attention e.g. amenity, wildlife, historical, veteran, rarity and public access.

Who is the course for?

Experienced and qualified arboriculturists who wish to gain tree inspection training at an advanced level. Prospective trainees should be experienced in carrying out tree inspection survey and inspection. Tree climbing and use of MEWP will not be required during the course.


Lantra Awards Professional Tree Inspection Certificate


3 days consisting of workshop and practical sessions


A minimum of arboricultural qualification at level three or equivalent and five years carrying out tree survey and inspection

Course Content

  • Introduction
  • The Legal Framework
  • The Tree
  • As a dynamic living system
  • An undamaged, self-optimized structure
  • The law of the minimal lever arm and strategy of flexibility
  • Visual Tree Assessment (VTA)
  • Principel fungal decay organisms
  • Mechanical symptoms of defects
  • Tree inspection equipment
  • Making and writing management recommendations
  • Practical exercises
  • Workshop sessions
  • Hazard evaluations
  • VTA tree walk
  • Introduction to decay detection and measuring equipment
  • Assessment
  • Final round up

Facilities/Equipment Required

  • Outdoor clothing, including ‘Hi-viz’
  • Clipboard
  • Pro-forma record sheet
  • Binoculars
  • Mallet and probe
  • Diameter tape
  • Height measuring device

Pre-course Reading List updated 2017

Key Publications

  1. Lonsdale, D. (1999). Principles of Tree Hazard Assessment and Management, Research for Amenity Trees No, 7, Stationery Office, London.
  2. Mattheck, C. & Breloer, H (1994). The Body Language of Trees, Research for Amenity Trees No, 4, Stationery Office, London.
  3. Strouts, R.G. & Winter, T.G. (1994). Diagnosis of Ill Health in Trees, Research for Amenity Trees No, 2 Stationery Office, London.
  4. Davis, C., Fay, N & Mynors, C (2000). Veteran Trees: a guide to risk and responsibility. English Nature, Peterborough.
  5. Fay, N., Dowson, D.C., & Helliwell, R (2005). Tree Surveys: A guide to Good Practice. The Arboricultural Association, Romsey, Hampshire.
  6. Shigo, A.L. (1991). Modern Arboriculture. Shigo & Tree Associates, Durham, NH, USA.
  7. Weber, K., & Mattheck, C. (2003). Manual of Wood Decay in Trees, The Arboricultural Association, Romsey Hampshire.
  8. Mattheck, C. (2007). Updated Field Guide for Visual Tree Assessment.   Forschungszentrum Karlsruhe GmbH, Leopoldshafen, Germany.
  9. Watson G., & Green T. (2011). Fungi on trees: An Arborist’s Field Guide. Arboricultural Association, Romsey, Hampshire.
  10. Recommendations for Tree Work. BS 3998. (2010) British Standards Institute, London.
  11. National Tree Safety Group (NTSG) (2011). Common Sense Risk Management of Trees: Guidance on Trees and Public Safety in the UK for Owners. Managers and Advisers, Forestry Commission, Edinburgh.
  12. Tree identification book(s)
  13. Fungi identification book(s)

Other useful publications

  1. Ellison, M (2005). Quantified Tree Risk Assessment:  used in the management of amenity trees.  Journal of Arboriculture Vol. 31, International Society of Arboriculture.  Champaign, IL, USA
  2. Clarke, J., & Matheny, N. (1993). A photographic guide to the evaluation of hazard trees in urban areas. 2nd Edition, International Society of Arboriculture, Champaign, IL, USA.
  3. Schwarze, F.W.M.R., Lonsdale, D., & Fink, S (1997). An overview of wood degradation patterns and their implications for tree hazard assessment. Arboricultural Journal Vol 21. The Arboricultural Association, Romsey, Hampshire.
  4. Lonsdale, D. Hazards from Trees: A General Guide (Practice Guide 13), Forestry Commission, Edinburgh.
  5. Blanchard, R.O., & Tatter, T.A (1997). Field and laboratory Guide to Tree Pathology (2nd edition). Academic Press. New York.
  6. Mattheck, C. (2002). Tree Mechanics: Explained with sensitive words by Pauli the Bear. Forschungszentrum Karlsruhe GmbH, Leopoldshafen, Germany.
  7. Schwarze, F.W.M.R, Engals, J., & Matteck, C. (1999). Fungal Strategies of Wood Decay in Trees. Springer-Verlag Berlin.
  8. Matteck, C., & Huber, H. (1995). Wood – The internal Optimization of Trees. Springer-Verlag GmbH, Berlin.
  9. Hayes, E. (2001). Evaluating Tree Defects: A field guide. Safetrees, Rochester, MN, USA.
  10. International Society of Arboriculture Glossary of Arboricultural Terms (2005). ISA Champaign, IL, USA.
  11. AAIS Research Information Notes.
  12. AAIS Tree Damage Alert Notes.
  13. James, K. R., Haritos, N. & Ades, P.K. (2006) Mechanical Stability of Trees under Dynamic Loads. American Journal Botany. 93 10: 1522-30
  14. Journal of Arboriculture. 31 (2007). International Society of arboriculture. Champaign, IL, USA.
  15. Percival, G. & Noviss, K. Chlorophyll Fluorescence: A Beginners’s Guide.   Bartlett Tree Research Laboratory.
  16. Rinn, F. (2008). Technical Inspection of Trees. Heidelberg, Germany.


This 3 day course is £485 + VAT

Cancellation Policy

Newlands Training Ltd have the following cancellation policy:

  • 7 working days notice, full fee refund, less administration charge of £25.00
  • 3-7 working days notice, 50% fee refund
  • 1-3 working days notice, 25% fee refund
  • Less than 1 days notice, no refund

Newlands Training

Current Status

We are now offering courses with reduced numbers and strict distancing arrangements – please make contact for course dates.

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