Professional Tree Inspection

CPD and short courses (short course)


3 days


Learn to recognise hazardous trees as part of your work, and implement control measures in an appropriate timescale. Our three-day course is accredited by Lantra.

Who should attend?

This accredited course is suitable for experienced arborists or tree work professionals, who can already identify and diagnose potential problems, and recommend and prioritise appropriate treatments and work programmes.


Tuesday 24 September 2024 - Thursday 26 September 2024 (9:00am to 4:00pm)

Please register your interest in future courses and we'll be in touch when dates are arranged.

Where you'll study

Your faculty

At Writtle College, our courses blending classroom learning with hands-on experience in specialised fields such as sport, agriculture, horticulture, animal studies, equine studies, conservation and floristry.

Our Level 2 and Level 3 programmes are designed to prepare you for your future career or higher education pathways.

Study on our beautiful countryside campus, with dedicated resource centres and state-of-the-art facilities – and be a part of our supportive community.

Where can I study?

Writtle campus
Aerial view of farm building and fields at ARU Writtle

Our picturesque 150-hectare campus is situated in the heart of the Essex countryside.

Explore our Writtle campus

Fees & funding

Course fees

Standard booking


Contact details

Short Courses team
[email protected]

Entry requirements

This course is designed for experienced arborists or tree work professionals. It's an intensive course and you'll need the ability to study written technical information. 

You must hold a Level 3 national qualification, such as a National Diploma in Arboriculture, an AA Tech Certificate or be able to demonstrate an equivalent level of academic knowledge relating to legislation and general arboricultural practice. You must also possess a detailed knowledge of tree biology before taking this course.

We ask you to read the following books before attending the course and, if possible, to bring copies with you.

  • Lonsdale D (1999). Principles of Tree Hazard Assessment and Management, Research for Amenity Trees - No 7. Stationery Office, London
  •  Mattheck C & Breloer H (1994). The Body Language of Trees, Research for Amenity Trees - No 4. Stationery Office, London
  • Strouts R G & Winter T G (1994). Diagnosis of Ill Health in Trees, Research for Amenity Trees - No 2. Stationery Office, London
  • Davis C Fay N & Mynors C (2000). Veteran Trees: A Guide to Risk and Responsibility. English Nature, Peterborough
  • Fay N Dowson D C & Helliwell R (2005). Tree Surveys: A Guide to Good Practice. The Arboricultural Association
  • Shigo A L (1991). Modern Arboriculture. Shigo & Tree Associates, Durham, NH, USA
  • Weber K & Mattheck C (2003). Manual of Wood Decay in Trees. The Arboricultural Association
  • Recommendations for Tree Work BS 3998 (1989 with 2010 amendment). British Standards Institute, London
  • Tree identification book(s)
  • Fungi identification book(s)

Other relevant publications:

  • Ellison M (2005). Quantified Tree Risk Assessment: used in the management of amenity trees. Journal of Arboriculture, Vol 31, International Society of Arboriculture
  • Clarke J & Matheny N (1993). A photographic guide to the evaluation of hazard trees in urban areas, 2nd edition. International Society of Arboriculture, USA
  • Schwarze F W M R Lonsdale D & Fink S (1997). An overview of wood degradation patterns and their implications for tree hazard assessment. Arboricultural JournalVol 21, The Arboricultural Association
  • Lonsdale D. Hazards from Trees F C Practice Guide 13. Forestry Commission
  • Blanchard R O & Tatter T A (1997). Field and Laboratory Guide to Tree Pathology, 2nd edition. Academic Press
  • Mattheck C (2002). Tree Mechanics: Explained with sensitive words by Pauli the Bear. Forschungszentrum Karlsruhe
  • Schwarze F W M R Engals J & Mattheck C (1999). Fungal Strategies of Wood Decay in Trees. Springer-Verlag, Berlin
  • Mattheck C & Huber H (1995). Wood - The Internal Optimization of Trees. Springer-Verlag, Berlin
  • Hayes E (2001). Evaluating Tree Defects: A field guide. Safetrees, Rochester, MN, USA
  • ISA Glossary of Arboricultural Terms (2005). ISA Champaign, IL, USA
  • AAIS Research Information Notes
  • AAIS Tree Damage Alert Notes

By making a booking you are declaring yourself medically fit to participate in this course.

Loading... Entry requirements are not currently available, please try again later.

Apply now

Book a place through our online store

Book online