Fungi: Ascomycota - Erysiphales - mildew Phyllactinia mali Mildew on Crataegus monogyna, Hawthorn Hosts: Oligophagous on Rosaceae - Amelanchier, Crataegus, Cydonia, Malus, Mespilus, Prunus, Pyracantha, Pyrus Possibly also on Sorbus aucuparia, intermedia, torminalis

Phyllactinia mali
Luscombe NR, Dorset. September 2018