Plant Parasites of Europe

leafminers, galls and fungi

Peronospora sordida

Peronospora sordida Berkeley, 1861

on Scrophularia, ? Veronica

Peronospora sordida on Scrophularia nodosa

Scrophularia nodosa, Belgium, prov. Limbourg, Koersel, Koerselse Heide Noord, 19.vii.2021 © Carina Van Steenwinkel

Peronospora sordida on Scrophularia nodosa

mildly affected leaf

Peronospora sordida on Scrophularia nodosa

underside with down

Peronospora sordida on Scrophularia nodosa

conidiophores

Peronospora sordida on Scrophularia nodosa

termina branchings

Peronospora sordida on Scrophularia nodosa

conidia 13-16.5 x 19-24 µm

gall

leaves pale, may be disfigured. Underside with a brownish purple down, consisting of 0.6 mm high erect conidiophores that apically several times are dichotomously branching, each branch ending upon an ovoid conidium.

host plants

Scrophulariaceae, ? monophagous

Scrophularia nodosa, scopolii, umbrosa.

Negrean ao additionally mention Veronica hederifolia and polita; possibly they consider Peronospora agrestis a synonym of sordida.

references

Belbahri, Calmin, Pawlowski & Lefort (2005a), Brandenburger (1985a: 573), Buhr (1965a), Doppelbaur & Doppelbaur (1973a, 1974a), Doppelbaur, Huber & Poelt (1965a), García-Blázquez, Constantinescu, Tellería & Martín (2007a), Göker, García-Blázquez, Voglmayr ao (2009a), Göker, Voglmayr, Riethmüller ao (2003a), Gustavsson (1991a), Jage, Klenke, Kruse ao (2017a), Jage, Kruse, Kummer ao (2013a), Klenke & Scholler (2015a), Kozłowska, Mułenko & Heluta (2015a), Kruse (2014a, 2019a), Müller (2015a), Müller & Kokeš (2008a), Mułenko, Kozłowska, Bacigálová ao (2014a), Negrean, Constantinescu & Denchev (2004a), Ruszkiewicz-Michalska (2006a), Săvulescu (1948a), Thines, Telle, Ploch & Runge (2009b), Voglmayr (2003a).

Last modified 25.vii.2021