Plant Parasites of Europe

leafminers, galls and fungi

Erysiphe corylacearum

Erysiphe corylacearum Braun & Takamatsu, 2002

on Corylus


Mycelium amphigenous, white, forming dense patches; appressoria lobate. Conidia solitary, ± 19 x 28 µm, on a straight, 45 µm long conidiophore. Cleistothecia 80-100 µm; ± 10 appendages, these stiff, 0.5-1.5 x diameter, distally repeatedly branched. Asci 3-5 with 6-8 spores.

host plants

Betulaceae, monophagous

Corylus avellana, colurna.

distribution within Europe

Japanese species, in 2019 firstly observed in Europe and expanding at high speed.


Beenken, Brodtbeck & de Marchi (2020a), Braun & Cook (2012a), Heluta & Fokshei (2020a), Rosati, Bogoescu & Spadaro (2021a), Sezer, Dolar, Lucas, ao (2017a), Voglmayr, Zankl, Krisai-Greilhuber & Kirisits (2020a).

Last modified 2.xii.2021