Erysiphe ulmariae is a powdery mildew which affects plants in the Filipendula family such as Meadowsweet.
Unless identified by a recognised expert, a photo is required and the specimen should be examined with a microscope. In the comments box, state the key or ID method used and describe the size and identifying characters.
The mildew may be observed anywhere that the host plants occur.
The mildew may be observed when the host plants are in leaf.
It seems to be widespread in Britain, although true status is difficult to determine due to lack of records.
Status in Leicestershire and Rutland not known.
Leicestershire & Rutland Map
Enter a town or village to see local records
Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015