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Apple sooty blotch

Symptoms

A plethora of sooty, greenish or brown spots all over the fruit, which usually appear during cold, wet seasons, and particularly on shady parts of the tree.

Find it on: apples, pears, plums
Time to act: summer to autumn

Overview

Apple sooty blotch is caused by an overwintering fungus, which is typically found on trees or branches growing in shade and damp. It creates a splatter of dark, sooty spots all over the skin of the fruit, although the flesh isn't affected at all and the taste doesn't suffer. The spots can be easily scraped off.


Solution

A plethora of sooty, greenish or brown spots all over the fruit, which usually appear during cold, wet seasons, and particularly on shady parts of the tree.

Organic

Good garden hygiene eases many fungal problems, so ensure you clear away all fallen, affected fruits and leaves by late-autumn. Dispose of them but not on your compost heap, as this could redistribute the fungus around the garden.

Chemical

There's no specific control, but spraying for apple scab using myclobutanil fungicide at regular intervals during the growing season invariably eliminates the problem.




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Talkback: Apple sooty blotch
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sandra f 24/11/2011 at 15:28

I have an apple tree in my garden which has some unwelcome visitors namely ants which are blazing a trail up and down my tree leaving grooves in several places. Is this damaging the tree in any way? Last year I had a bumper crop but this year I can count them on two hands. I would welcome any advice . thanks

athompson 24/11/2011 at 15:29

hello i need your help on apple and pear tree my apple tree gave me loads of apples but they all had black patches on them and i dont know what it is or what caused this to happen the tree is 6 years old. to my pear tree it is also 6years old but this year as given me no pears at all, could you please help me thank you ann.