This Quickscan was prompted by a publication on an emerging Peronospora disease on Aquilegia spp. in the UK. The organism is widespread in the UK and may have been introduced from East Asia. There are no records of the pathogen from continental Europe. The pathogen can be very damaging and kill the plant within a few years and it has potentially a major impact on this species in nurseries, gardens, parcs and natural environments. The species may be introduced with regular import of plants for planting (including seeds) or by passengers (collectors etc.) bringing in plants (illegally). It is considered a high risk for Aquilegia spp. in Europe