The Forestry Commission has said a survey of other sites recently planted with ash from known infected nurseries is continuing.
The Welsh government say they are taking the threat very seriously.
Tree diseases do not respect country boundaries and we need to provide a consistent approach to this threat in order to meet the demands of stakeholders and the public and to ensure that our response is co-ordinated and based on the most up to date scientific evidence.
More top news
The Met Office has issued a yellow warning to be aware of heavy rain overnight
An ITV News investigation has revealed a twenty-fold increase in police incidents involving legal highs in Wales in just two years.
The Met Office has issued severe weather warnings for much of Wales for tonight, believe it or not!