Since the first finding of ash dieback in Britain in 2012 there has been a concerted effort from scientists across GB to fund and lead research into ash dieback.
Ers i glefyd coed ynn gael ei ganfod gyntaf ym Mhrydain yn 2012 bu ymdrech ar y cyd gan wyddonwyr ledled Prydain Fawr i ariannu ac arwain gwaith ymchwil i'r clefyd.