Sphaerotheca epilobii galls the leaves of Willowherbs. The stem, especially the side shoots becoming bent and slightly thickened covered with a whitish powdery mildew.
Where the host Willowherbs occur.
When the host species are in leaf.
Widespread and fairly frequent in Britain.
Status in Leicestershire and Rutland not known.
Leicestershire & Rutland Map
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Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015