Diplocarpon mespili (Sorauer) Sutton, 1980

leaf blight of hawthorn

on woody Rosaceae

Diplocarpon mespili: leaf spots on Crataegus monogyna

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

Diplocarpon mespili: conidia

conidia (top: on a conidiophore; from Brandenburger, 1985a)

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.

synonyms

Entomosporium mespili (de Candolle) Saccardo, 1880.

references

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

mod 19.vii.2018