Pear scab occurs mainly in damp places and in areas with a lot of rain, leaving the leaves wet for a long time
Same fungal species causes apple scab (Venturia inaequalis).
Pear scab (Venturia pirina). This fungus mainly occurs in damp places and in areas with a lot of rain, so the leaves stay wet for a long time. The fungal spores then have sufficient moisture to germinate. Scab spots appear on leaves and fruit.
Where to find
Control
Remove affected branches and shoots.
Prevention
In professional fruit growing, the exact length of time the leaves remain wet (leaf wetness) and the temperature are monitored. The combination of both is decisive for the development of scabies. Control is by spraying.
Cleaning up fallen leaves prevents infection; the fungus overwinters in the leaves. Make sure the wind has free play in the tree.
