Rhododendron ponticum, Eerbeek

underside of a leaf

small greyish flakes of conidia at the underside

more strongly magnified

the conidia are 80-100 µm long

gall

large leaf spots, deep red margined, on living leaves.

hostplants

Ericaceae, monophagous

Rhododendron luteum, ponticum.

synonyms

Cercospora handelii Bubák, 1909; Cercoseptoria handelii (Bubák) Deighton, 1976.

references

Ellis & Ellis (1997a), Świderska-Burek (2015a), Videira, Groenewald, Nakashima ao (2017a).