Podosphaera leucotricha
Podosphaera leucotricha is a powdery mildew which affects the leaves and stems of Apples (Malus sylvestrs, Malus domestica and cultivars) and Pear (Pyrus communis) and a few related species of shrubs or trees - see Woods et al (2024) for detailed host list.
Podosphaera clandestina may be present on other species of Pear and on Cydonia (Quince). Phyllactinia mali may be present on Cydonia (Quince)
Malus/Pyrus communis 
other Pyrus/Cydonia 
Photograph the mildew on the host plant, and add host species to the comments for your record. If recording on Quince or species of Pear other than P communis, microscopic examination may be needed to separate from similar species.
Apples, Pears, Quince and related species
Graham Calow
Sapcote, Field near Granitethorpe Quarry
27 April 2020
on Apple
det. R Lemmon from specimen
Sally Cunningham
Croft garden
26 April 2023
Graham Calow
Sapcote, Field near Granitethorpe Quarry
27 April 2020
on Apple
det. R Lemmon from specimen
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Species profile
- Common names
- Apple Powdery Mildew
- Species group:
- fungus
- Kingdom:
- Fungi
- Order:
- Helotiales
- Family:
- Erysiphaceae
- Records on NatureSpot:
- 3
- First record:
- 27/04/2020 (Calow, Graham)
- Last record:
- 26/04/2023 (Cunningham, Sally)
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% of records within its species group
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