Peronospora dianthi de Bary, 1863

on Petrorhagia, Vaccaria

gall

leaves with pale spots. Underside with a brownish-violet down, consisting of 0.5 mm high erect conidiophores that apically several times are dichotomously branching, each terminal branch ending in a conidium.

hostplants

Caryophyllaceae, narrowly oligophagous

Petrorhagia prolifera; Vaccaria hispanica.

Not on Dianthus.

references

Brandenburger (1985a: 110), Gustavsson (1991a), Klenke & Scholler (2015a), Kozłowska, Mułenko & Heluta (2015a).

mod 22.viii.2017