Plant Parasites of Europe

leafminers, galls and fungi

Entyloma calendulae

Entyloma calendulae (Oudemans) de Bary, 1874

on Calendula

Entyloma calendulae on Calendula officinalis

Calendula officinalis, België, prov. Antwerpen, Mol, 31.viii.2021 © Carina Van Steenwinkel: infected plant

Entyloma calendulae on Calendula officinalis

detail

Entyloma calendulae on Calendula officinalis

infected leaf, lighted from behind

Entyloma calendulae on Calendula officinalis

mass of spores

Entyloma calendulae on Calendula officinalis: spores

spores

Entyloma calendulae on Calendula officinalis: anamorph

germinating spores with anamorph

Entyloma calendulae on Calendula officinalis: anamorph

detail

Entyloma calendulae on Calendula officinalis: anamorph

anamorph conidia

gall

numerous leaf spots, 1-5 mm in size, weakly thickened, changing in colour from yellowish white to light brown. Inside yellowish, smooth-walled spores are formed, 8-13 x 9-16 µm.

host plants

Asteraceae, oligophagous

Calendula arvensis, officinalis, suffruticosa & subsp. fulgida; Dimorphotheca.

references

Ainsworth & Sampson (1950a), Almaraz (1998a), Beenken & Senn-Irlet (2016a), Buhr (1964b), Hafellner (1980a), Jage, Klenke, Kruse ao (2016a), Klenke & Scholler (2015a), Kruse (2019a), Lutz & Vánky (2009a), Mułenko, Piątek, Wołczańska ao (2010a), Negrean & Anastasiu (2006a), Savchenko & Heluta (2012a), Scheuer & Bechter (2012a), Scholz & Scholz (2013a), Spooner & Butterfill (1999a), Unamuno (1941a), Vanderweyen & Fraiture (2014a), Vánky (1994a), Woods, Chater, Smith ao (2018a), Zwetko (1993a).

Last modified 1.ix.2021