Cercosporella virgaureae (von Thümen) Allescher, 1895

on Erigeron, Solidago

Cercosporella virgaureae on Erigeron annuus

Erigeron annuus, Belgium, prov. Limbourg, Dilsen-Stokkem, Oude Maas, 11.viii.2019 © Carina Van Steenwinkel

Cercosporella virgaureae on Erigeron annuus

leaf with beginning infestation, upperside

Cercosporella virgaureae on Erigeron annuus

underside

Cercosporella virgaureae on Erigeron annuus

advanced infestation

Cercosporella virgaureae on Erigeron annuus

underside

Cercosporella virgaureae on Erigeron annuus

terminal infestation

Cercosporella virgaureae on Erigeron annuus

underside

Cercosporella virgaureae: colonies on Erigeron annuus

colonies in detail

Cercosporella virgaureae: conidiophores

conidiophores

Cercosporella virgaureae: conidia

conidia

Cercosporella virgaureae: conidia

conidia

parasite

Conidia 3-7 x 20-100 µm, generally 2-5-septate.

host plants

Asteraceae, oligophagous

Erigeron acris, annuus, bonariensis, canadensis; Solidago virgaurea.

references

Bakhshi (2018a), Blumer (1946a), Braun (1995b), Doppelbauer (1973a), Jage, Kruse, Kummer ao (2013a), Kruse (2014a), Ludwig (1974a), Pirnia, Zare, Zamanizadeh & Khodaparast (2012a), Ruszkiewicz-Michalska (2006a), Videira, Groenewald, Nakashima ao (2017a).

mod 23.viii.2019