Plant Parasites of Europe

leafminers, galls and fungi

Paraperonospora leptosperma

Paraperonospora leptosperma (de Bary) Constaninescu, 1989

on Asteraceae, Anthemideae

Paraperonospora leptosperma on Tripleurospermum maritimum

Tripleurospermum maritimum.Belgium, prov. Limbourg, Lanaken, Dal van de Grensmaas, Hochter Bampd, Herbricht, 28.v.2021 © Carina Van Steenwinkel

Paraperonospora leptosperma on Tripleurospermum maritimum

early infestation

Paraperonospora leptosperma on Tripleurospermum maritimum

detail

Paraperonospora leptosperma on Tripleurospermum maritimum

conidiophore

Paraperonospora leptosperma on Tripleurospermum maritimum

ultimate branchings

Paraperonospora leptosperma on Tripleurospermum maritimum

spores

Paraperonospora leptosperma on Tripleurospermum maritimum

spores

gall

greyish-white, sometimes yellowish fungal down on the leaves (mainly underside), sometimes the flower heads on scattered patches. It consists of erect, tree-like branching conidiophores. Infected plants turn yellow, ultimately brown.

host plants

Asteraceae, narrowly oligophagous

Achillea atrata, clusiana, millefolium, umbellata; Anthemis arvensis, cotula, cretica subsp. carpatica; Argyranthemum frutescens; Coleostephus myconis; Cota austriaca; Cotula altissima, turbinata; Crepis pulchra; Dimorphotheca pluvialis, sinuata; Lasiospermum bipinnatum, brachyglossum; Matricaria aurea, breviradiata, chamomilla, discoidea, “globifera”; Tripleurospermum caucasicum, inodorum, maritimum; Ursinia anthemoides, cakilefolia, calenduliflora, speciosa.

synonyms

Peronospora leptosperma de Bary, 1863; P. anthemidis Gäumann, 1923; P. achilleae Săvulescu & Vánky, 1956.

references

Buhr (1964b), Constantinescu (1989, 1996a), Dietrich (2013a), Doppelbaur & Doppelbaur (1973a, 1974a), Doppelbaur, Huber & Poelt (1965a), García-Blázquez, Constantinescu, Tellería & Martín (2007a), Göker, Voglmayr, Riethmüller ao (2003a), Jage, Klenke, Kruse ao (2017a), Jage, Kruse, Kummer ao (2013a), Klenke & Scholler (2015a), Kozłowska, Mułenko & Heluta (2015a), Kruse (2014a, 2019a), Losa España (1944a), Mayor (1967a), Müller (2015a), Müller & Kokeš (2008a), Negrean, Constantinescu & Denchev (2004a), Riethmüller, Voglmayr, Göker ao (2002a), Săvulescu (1948a).

Last modified 31.v.2021