Rosa spec., Nieuwendam

gall

brownish black epiphyllous leaf spots. Under damp conditions masses of conidia are squeezed out of upperside acervuli. Well-known disease of ornamental roses: “black spot disease.”

hostplants

Rosaceae, monophagous

Rosa canina, pendulina, villosa.

synonyms

Marssonina rosae (Libert) Diedicke, 1915.

references

Blumer (1946a), Ellis & Ellis (1997a), Kozłowska, Mułenko & Heluta (2015a), Ludwig (1974a), Moret i Benaset & Nadal i Puigdefabregas (1984a), Ruszkiewicz-Michalska (2006a), Scheuer & Bechter (2012a).

26/05/2017