Oak Mildew - Erysiphe alphitoides

Alternative names
Microsphaera alphitoides
Description

Erysiphe alphitoides is a fungal rust (a foliar pathogen) that causes a powdery mildew on the leaves of Oak.

Identification difficulty
Habitat

Areas where Oak occurs.

When to see it

When Oak is in leaf.

UK Status

Widespread and fairly frequent in Britain.

VC55 Status

Fairly frequent in Leicestershire and Rutland.

Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map

Species profile

Common names
Oak Powdery Mildew, Oak Mildew
Species group:
Fungi
Kingdom:
Fungi
Order:
Erysiphales
Family:
Erysiphaceae
Records on NatureSpot:
119
First record:
28/09/2014 (Thompson, Peter)
Last record:
23/10/2023 (lemmon, roy)

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.

Latest images

Latest records