Peronospora chenopodii Schlechtendal, 1852

on Chenopodium

Peronospora  chenopodii on Chenopodium hybridum

Peronospora chenopodii, Hungary, Mosonmagyaróvár © László Érsek

Peronospora  chenopodii on Chenopodium hybridum

same leaf, underside

Peronospora  chenopodii on Chenopodium hybridum

leaf spot, upper side

Peronospora  chenopodii on Chenopodium hybridum

leaf spot, onderzijde

Peronospora  chenopodii on Chenopodium hybridum

down

gall

underside of the leaves with a greyish purple fungal down consisting of vertical conidiophores that apically several times are dichotomously branching, each branch ending upon an elliptic conidium.

hostplants

Amaranthaceae, narrowly monophagous

Chenopodium hybridum.

synonyms

Peronospora chenopodii-urbici Săvulescu & Rayss, 1932.

references

Brandenburger (1985a: 120), Buhr (1964b), Choi, Denchev & Shin (2008a), Cunnington (2008a), Doppelbaur & Doppelbaur (1973a), Doppelbaur, Huber & Poelt (1965a), Göker, García-Blázquez, Voglmayr ao (2009a), Gustavsson (1991a), Jage, Klenke, Kruse ao (2017a), Jage, Kruse, Kummer ao (2013a), Klenke & Scholler (2015a), Kruse (2014a), Müller (2015a), Müller & Kokeš (2008a), Ludwig (1974a), Negrean (1995a), Ruszkiewicz-Michalska (2006a), Săvulescu (1948a), Voglmayr (2003a).

mod 31.viii.2018