Plant Parasites of Europe

leafminers, galls and fungi

Peronospora vernalis

Peronospora vernalis Gäumann, 1923

on Spergula

gall

leaves pale, may be disfigured. Oospores are formed in the swollen flower buds. Underside with a greyish down, consisting of 0.5 mm high erect conidiophores that apically several times are dichotomously branching, each branch ending upon a conidium.

hostplants

Caryophyllaceae, narrowly monophagous

Spergula morisonii (= vernalis), pentandra.

references

Brandenburger (1985a: 97), Buhr (1965a), Doppelbaur, Huber & Poelt (1965a), Jage, Klenke, Kruse ao (2017a), Klenke & Scholler (2015a), Kozłowska, Mułenko & Heluta (2015a).

Last modified 21.iv.2020