Peronospora dipsaci Tulasne, 1854

on Dipsacus

Dipsacus fullonumBelgium, prov. Limbourg, Dal van de Grensmaas, Hochter Bampd-Herbicht, 2.vi.2020 © Carina Van Steenwinkel: leaf with local infections

some leaves are entirely infected, pale geeen

the down at hand-lense magnification

conidiophores

conidiophore

conidium

conidium

gall

upperside of the leaves with paled, slightly embossed patches; at the corresponding underside a greyish brown-purple fungal bloom, consisting of erect, distally strongly branched conidiophores. The conidia measure 13-29 x 18-35 µm.

host plants

Caprifoliaceae, monofaag

Dipsacus fullonum, laciniatus, pilosus.

references

Brandenburger (1985a: 598), Buhr (1964b), Chater, Woods, Stringer, ao (2020a), Dauphin & Aniotsbehere (1997a), Doppelbaur, Huber & Poelt (1965a), Jage, Klenke, Kruse ao (2017a), Klenke & Scholler (2015a), Kruse (2014a, 2019a), Müller (2015a), Müller & Kokeš (2008a), Săvulescu (1948a).