Diplocarpon mespili (Sorauer) Sutton, 1980

leaf blight of hawthorn

on Crataegus, etc.

Mespilus germanica, Belgium, prov. Limbourg, Hasselt, Domein Kiewit, 30.ix.2020 © Carina Van Steenwinkel

detail with acervuli

conidia

Cydonia oblonga, Belgium, prov. Limbourg, Kerkhoven, den Tip, 27.viii.2020 © Carina Van Steenwinkel: light infection

leaf spot with acervuli

conidia

conidium

conidium

Cydonia oblonga, Hungary, Mosonmagyaróvár, 17.vii.2020 © László Érsek

detail

section

1.ix.2013, another imago

detail

Crataegus monogyna, Flevoland, Reve-Abbertbos, 25.vi.2018 © Hans Jonkman

parasite

Usually only on the fallen leaves in acervuli strange-looking conidia are formed. Later the teleomorph appears as cup-shaped ascocarps.

host plants

Rosaceae – Malineae, narrowly oligophagous

Cotoneaster integerrimus, tomentosus; Crataegus monogyna; Cydonia oblonga; Eriobotrya japonica; Mespilus germanica.

synonyms

Entomosporium mespili (de Candolle) Saccardo, 1880.

references

Batool, Mukhtar & Butt (2014a), Blumer (1946a), Brandenburger (1985a: 248), Ellis & Ellis (1997a), Ruszkiewicz-Michalska (2006a), Scheuer & Bechter (2012a).