Peronospora calotheca
A Downy Mildew affecting Woodruff (Galium odoratum). Shoots and leaves are pale and stunted, and flowering is suppressed. Eventually the shoots die. Under the leaves, a greyish down is present.
host 
Photograph the mildew on the host plant; ensure you have noted the host plant in your comments
on Woodruff; woodlands, shady places
sue
Bagworth
20 March 2026
on Woodruff Galium odoratum
new shoots pale and distorted
sue
Bagworth
20 March 2026
x400, in water
from undersides of woodruff leaf in garden
sue
Bagworth
20 March 2026
sue
Bagworth
20 March 2026
mould on leaf undersides
Leicestershire & Rutland Map
Enter a town or village to see local records
MAP KEY:
Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020
UK Map
Species profile
- Species group:
- fungoid
- Kingdom:
- Chromista
- Order:
- Peronosporales
- Family:
- Peronosporaceae
- Records on NatureSpot:
- 1
- First record:
- 20/03/2026 (Timms, Sue)
- Last record:
- 20/03/2026 (Timms, Sue)
Total records by month
% of records within its species group
10km squares with records
The latest images and records displayed below include those awaiting verification checks so we cannot guarantee that every identification is correct. Once accepted, the record displays a green tick.
In the Latest Records section, click on the header to sort A-Z, and again to sort Z-A. Use the header boxes to filter the list.