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Refresher & update training for the Lantra Professional Tree Inspection Certification

This refresher training programme is designed to utilise existing knowledge and information provided as part of the Professional Tree Inspection programme.


The need for this refresher programme has arisen out of a recent inquest (2014) where council highway inspectors had not completed any hazard-related training for seven years and a common sense approach to reinforcing previously acquired knowledge and skills.


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Course Objectives

This one day professional tree inspection refresher/update course will give you the information to enable you to:


  • be reacquainted with material previously studied in the Professional Tree Inspection (PTI) programme, to ensure the knowledge and skills acquired are kept current
  • review key concepts, such as systematic and diagnostic tree inspection procedures
  • share ideas and experiences gained since completing the PTI programme
  • update knowledge and skills in technical matters
  • ensure compliance with regulatory and best practice changes
  • ensure that you continue to possess the skills and knowledge needed to perform the important tasks connected with tree inspection.

Who is the course for?

Professional arboriculturalists who have previously successfully completed the Professional Tree Inspection course. Frequency of refresher training will greatly depend upon the how often the learner is involved in undertaking inspections, but it would be recommend on a five yearly basis.


Lantra Professional Tree Inspection Refresher Certificate


1 days consisting of classroom and practical sessions


The Lantra Professional Tree Inspection Certificate

Facilities/Equipment Required

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


Key Publications   –   Pre-course Reading List updated 2017

  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 1 day course is £185+VAT


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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