Venturia pyrina Aderhold,1896

pear scab

on Pyrus

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

same leaf, underside

detail of a leaf spot

damaged fruit

conidia formation

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).