Host genus | Fungal species | Symptoms and notes |
Dactylis | Claviceps purpurea | The ergot fungus, infecting inflorescences and forming sclerotia from modified seeds. Highly toxic |
Phyllachora dactylidis | Tar spot of leaves, not causing substantial damage | |
Digitalis | Colletotrichum fuscum | Causes leaf spots |
Ramularia digitalis-ambiguae | Causes leaf spots | |
Dryas | Isothea rhytismoides | Inconspicuous tar spot of leaves |