Peronospora agrestis Gäumann, 1918

on Veronica

gall

leaves pale, may be disfigured. Underside with a greyish-violet down, consisting of 0.6 mm high erect conidiophores that apically several times are dichotomously branching, each terminal branch ending in a conidium.

host plants

Plantaginaceae, monophagous

Veronica agrestis, arvensis, chamaedrys, filiformis, persica, polita, praecox, verna.

The list of hostplant species is based on Klenke & Scholler.

references

Belbahri, Calmin, Pawlowski & Lefort (2005a), Brandenburger (1985a), Buhr (1965a), Doppelbaur & Dobbelbaur(1973a), Doppelbaur, Huber & Poelt (1965a), Göker, García-Blázquez, Voglmayr ao (2009a), Gustavsson (1991a), Klenke & Scholler (2015a), Kozłowska, Mułenko & Heluta (2015a), Kruse (2014a), Müller (2015a), Müller & Kokeš (2008a), Ruszkiewicz-Michalska (2006a), Sävulescu (1948a), Voglmayr (2003a).

mod 19.iv.2018