Ash dieback disease - new Teagasc video series provides advice to growers

Teagasc’s Forestry Development Department have produced a series of videos to provide objective advice to forest owners whose ash plantations have been affected by ash dieback (Hymenoscyphus fraxineus).
The videos also highlight the important factors that need to be considered when removing the infected ash trees, and replacing them with alternative tree species.

Dr Nuala Ní Fhlatharta, Head of the Teagasc Forestry Development Department, emphasised the importance of this timely source of information.
“Forest owners with affected ash plantations are attempting to find a way forward and Teagasc is supporting them in relation to developing future management options for their forests,” she said.

In this series of videos, advice and information is provided by Teagasc’s Forestry Development Officers on: The life cycle and symptoms of the fungal disease ash dieback, with descriptions of how this fungal disease spreads and how to recognise the symptoms of this disease of ash trees.
The importance of access into and through a plantation infected by ash dieback. The necessity of adequate forest roads providing access for timber harvesting operations is emphasised.
The challenges faced when carrying out timber harvesting operations in ash dieback-infected plantations, in particular the important health and safety considerations when harvesting dead, or dying ash trees.
Species selection, planting and tree protection are also considered when it comes to replanting an ash dieback-infected plantation.

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Research Work
The series provides an overview of the important research work that is being carried out by Teagasc, investigating solutions to the ash dieback fungal disease. Teagasc has developed two research projects on ash dieback of common ash (Fraxinus excelsior). Unfortunately, it is expected that the disease will affect most ash trees in Ireland, causing the majority of them to die over the next 20 years.

A very small proportion of ash trees show natural tolerance to the pathogen. This means that they show minor symptoms and the disease does not have a noticeable impact on their growth or health.
Teagasc is working to identify such trees and build up a gene bank with the ultimate goal of producing tolerant ash seed and plants restoring ash trees to Irish forests and hedgerows.

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Experts contributing to the series include Dr Ian Short, Teagasc researcher, and Dr Dheeraj Rathore, tree improvement researcher with Teagasc.
This series of six videos can be viewed at: www.bit.ly/managing_ashdieback , or on the Teagasc Forestry YouTube Channel: www.youtube.com/teagascforestryvideos