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).