Hymenoscyphus fraxineus(CHAAFR)
Distribution details in United Kingdom (Northern Ireland)
Current pest situation evaluated by EPPO on the basis of information dated
2023: Present, widespread
From CABI Disease map 1060 (2013): Present, few occurrences
From CABI Disease map 1060 (2013): Present, few occurrences
First recorded in Northern Ireland in November 2012 in Leitrim county, then found in other localities. Studies (Baxter et al., 2023) have shown that the fungus had probably been introduced with infected planting material in 2006/2007. Ash dieback is considered to be widespread in Northern Ireland and eradication measures were discontinued in 2020.
* Baxter E, Cooke LR, Spaans F, Grant IR, McCracken AR (2023) The introduction of Hymenoscyphus fraxineus to Northern Ireland and the subsequent development of ash dieback. Forest Pathology,53, e12789. https://doi.org/10.1111/efp.12789
* INTERNET
- Cannon, P. (accessed 2013) Hymenoscyphus pseudoalbidus (chalara ash dieback). Kew Royal Botanic Gardens, London, UK. http://www.kew.org/plants-fungi/Hymenoscyphus-pseudoalbidus.htm
------- Spreading from initial infection sites in Kent and East Anglia.
- Northern Ireland C BBC (2012) Ash dieback: Spotter's guide and maps. http://www.bbc.co.uk/news/scienceenvironment-20171524
* INTERNET
- Cannon, P. (accessed 2013) Hymenoscyphus pseudoalbidus (chalara ash dieback). Kew Royal Botanic Gardens, London, UK. http://www.kew.org/plants-fungi/Hymenoscyphus-pseudoalbidus.htm
------- Spreading from initial infection sites in Kent and East Anglia.
- Northern Ireland C BBC (2012) Ash dieback: Spotter's guide and maps. http://www.bbc.co.uk/news/scienceenvironment-20171524