Pseudoperonospora urticae (Libert) Salmon & Ware, 1925

on Urtica

gall

False mildew, mainly on the lowers leaves, that does not cause clear malformations. Upperside of the leaf with some angular yellow spots; underside with a brownish down of 0.4 mm high erect conidiophores that apically several times are branching, each terminal branch ending upon a conidium.

hostplants

Fabaceae, monophagous

Urtica dioica, kioviensis, urens.

references

Brandenburger (1985a: 77), Buhr (1965a), Doppelbaur, Huber & Poelt (1965a), García-Blázquez, Constantinescu, Tellería & Martín (2007a), Göker, García-Blázquez, Voglmayr ao (2009a), Göker, Voglmayr, Riethmüller ao (2003a), Jage, Klenke, Kruse ao (2017a), Klenke & Scholler (2015a), Kruse (2014a), Müller (2015a), Müller & Kokeš (2008a), Riethmüller, Voglmayr, Göker ao (2002a), Voglmayr (2003a).

mod 3.ix.2018