Story: Apples and pears

Black spot

Black spot

Black spot or black scab (Venturia inaequalis) is a fungal disease of apples, and spreads quickly in warm wet weather. It usually first appears in spring on young leaves, as small spots about 3 millimetres across. If young fruit are infected they may become misshapen or develop deep cracks. Granny Smith apples are quite susceptible to the disease.

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New Zealand Institute for Plant and Food Research

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How to cite this page:

John Palmer, 'Apples and pears - Pests, diseases and control', Te Ara - the Encyclopedia of New Zealand, (accessed 7 December 2021)

Story by John Palmer, published 24 Nov 2008