Welcome to the LTOA website. The London Tree Officers Association (LTOA) constitutes the professional & technical voice for London's trees & woodlands. Its aim is to enhance the management of the Capital's trees.
We hope that you find the LTOA website both interesting & informative. If you have any questions, comments or suggestions, please do not hesitate to contact us.
Stephen Lacey of the Telegraph attended the last LTOA seminar on 5 November 2015 about big trees and wrote the following article on 29 November 2015 mentioning two of our members Andy Tipping, Arboricultural Manager at LB Barnet with the Dawn Redwood avenue and Tom Campbell, Tree Officer at Hackney with the Tree Champions initiative.
The London Tree Officers Association (LTOA) is pleased to announce the publication of two new guidance documents relating to canker stain of plane (CSP, Ceratocystis platani).
The first is called Canker stain of plane: A guide to prevention and is a brief reminder for tree officers and contractors of the importance of biosecurity in the fight to prevent Ceratocystis from entering the UK.
The second is called Canker stain of plane: Dealing with an outbreak. This document is designed to inform and support tree officers and others working in the arboricultural industry should Ceratocystis be confirmed as having arrived in UK. It is a brief, practical document intended to bring relevant information together into once place and ensure that in the event of an outbreak in the UK we are well-placed to eradicate the disease before it becomes established.
Both documents have been influenced by the excellent work of the Forestry Commission, including the Keep it Clean campaign and the Ceratocystis platani Contingency Plan.
Ceratocystis platani is a fungal pathogen which affects the genus Platanus and causes infected trees to die. It is spread predominantly by contaminated equipment being used on uninfected trees, although it can also be transported via root grafts.
Since October 2014 the UK has held EU Protected Zone Status (PZS) for Ceratocystis, requiring robust controls relating to importations of plane trees and ensuring that planes can only be imported from other areas which have been designated free of the disease. PZS surveys for CSP are carried out annually in the UK.
The LTOA, under contract to the Forestry Commission, has been carrying out these surveys in Greater London since 2013. At the current time it is not believed that Ceratocystis is present in the UK. The definitive UK Ceratocystis text Detecting and identifying canker stain of plane, by Lucio Montecchio; revised and updated by Neville Fay and John Parker, is available from the LTOA (www.ltoa.org.uk) or Treeworks Environmental Practice (www.treeworks.co.uk).
The LTOA has become a UK partner in the new Euphresco project Identification of Cryphonectria and Ceratocystis spp. occurring on sweet chestnut and Platanus spp.
We have also set up a new CSP working party made up of 8 LTOA members which will be looking at drawing up guidance for tree officers and contractors.
The LTOA – in association with Treework Environmental Practice – has released a new industry publication: Detecting and identifying canker stain of plane. This 48-page A5 colour booklet contains all of the essential information about canker stain (Ceratocystis platani) and should be regarded as essential reading for anyone interested in finding out more about the disease.
It includes chapters detailing morphology and infection strategies, movement and spread, symptoms, practical survey tips, sample collection and fungal identification, the UK and Italian methods of prevention and control and a comprehensive list of references and further reading. The text is accompanied by colour photographs on almost every page and drawings/diagrams to assist identification and diagnosis.
The booklet was authored by international expert in Ceratocystis platani Professor Lucio Montecchio, of De Rebus Plantarum at the University of Padua. This 2nd edition English-language version has been revised and updated by John Parker of the LTOA and Neville Fay of Treework Environmental Practice to include additional material relevant to the UK situation, including the methodology and results of the LTOA Protected Zone Status surveys for Ceratocystis in 2014, 2015 and 2016.
Since 2014 the LTOA has been leading on monitoring plane trees in London for the presence of canker stain, working closely with the Forestry Commission, Forest Research and several tree officers and managers to survey thousands of trees across the capital to meet the requirements necessary to retain Protected Zone Status This ensures that plane saplings can only be imported into the country from other areas which have been confirmed as being free of the disease.
The LTOA has developed considerable expertise in the subject and in October 2016 was confirmed as the UK partner in a new pan-European Euphresco project – Identification and early detection of Cryphonectria parasitica and Ceratocystis platani occurring on trees in Europe.
Copies of the booklet are priced at just £5 and are available to purchase from the LTOA.
The London Tree Officers Association (LTOA) has announced the election of a new Executive Committee to head up the association for the next two years. The Executive Committee was elected by the members of the LTOA and will continue to promote urban forestry and represent tree officers in London and beyond. For full details of the LTOA and short biographies of the Executive Committee please visit http://www.ltoa.org.uk/about-the-ltoa/the-executive-committee.
The new Chair of the Executive Committee is John Parker (Transport for London) and the Vice Chair is Barbara Milne (City of Westminster). The other members of the Committee are Andy Tipping (Barnet), Clare Pappalardo (Haringey), Colleen O’Sullivan (Camden), Craig Ruddick (Richmond), Dave Lofthouse (Merton), Gary Meadowcroft (Southwark), Jake Tibbetts (Islington), Lawrence Usherwood (Brent), Oliver Stutter (Southwark) and Richard Edwards (Croydon).
John Parker, new Chair of the LTOA, said “I believe that a healthy population of urban trees is best achieved through a healthy population of urban tree officers. Over the next two years the Executive Committee will continue to ensure that the LTOA provides representation and support to our members and to tree officers everywhere. We will continue to offer high-quality professional publications and seminars and will also seek to build stronger relationships across the UK and internationally, particularly with our friends and colleagues in Europe.”