Venturia pyrina Aderhold,1896

pear scab

on Pyrus

Ventura pyrina on Pyrus communis

Pyrus communis, Belgium, prov. Limbourg, Kerkhoven, den Tip © Carina Van Steenwinkel

Ventura pyrina on Pyrus communis

same leaf, underside

Ventura pyrina on Pyrus communis

detail of a leaf spot

Ventura pyrina on Pyrus communis

damaged fruit

Ventura pyrina: conidia formation

conidia formation

Ventura pyrina: conidia

conidia

gall

During the summer leaf spots develop (also, as “scab” on the fruits) as a superficial mycelium where large masses of asexual conidia are formed. Also on the branches laesions may develop. Sexual reproduction takes place in perithecia that are formed in spring on the overwintered fallen leaves.

host plants

Rosaceae, monophagous

Pyrus communis.

synonyms

Venturia pirina.

references

Brandenburger (1985a: 260), Buhr (1965a), Ellis & Ellis (1997a), Kozłowska, Mułenko & Heluta (2015a), Melgarejo Nárdiz, García-Jiménez, Jordá Gutiérrez ao (2010a), Moret i Benaset & Nadal i Puigdefabregas (1984a), Roskam (2009a), Ruszkiewicz-Michalska & Połeć (2006a), Tomasi (2003a), Unamuno (1943a).

mod 2.vi.2018