Septocyta ruborum (Libert) Petrak, 1968

purple blotch of blackberry

on Rubus

Septocyta ruborum on Rubus fruticosus

Rubus fruticosus, België, prov. Antwerpen, Mol, Molse Nete, 3.iii.2020 © Carina Van Steenwinkel

Septocyta ruborum on Rubus fruticosus

infected part of a stem

Septocyta ruborum on Rubus fruticosus

conidiodomata

Septocyta ruborum on Rubus fruticosus

opened conidiodomata

Septocyta ruborum on Rubus fruticosus

conidia

Septocyta ruborum on Rubus fruticosus

conidia

parasite

On purplish discoloured parts of the stem develop 0,3 mm large black sunken conidiodomata that open in early spring; conidia 1.5-2 x (17)20-30(32) µm, 0-3-septate.

host plants

Rosaceae, monophagous

Rubus fruticosus, laciniatus, nessensis.

distribution within Europe

(PESI, 2020).

references

Brandenburger (1985a: 242), Ellis & Ellis (1997a), Kövics (1997a).

mod 6.iii.2020