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Brown rot

Symptoms

Tree fruit becomes inedible and rather unsightly when a small brown spot gradually encompasses the whole apple, pear or plum. The skin's surface is also peppered with greyish pustules.

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

Overview

Any tree fruit that has been wounded by insects or is split can be infected by this fungus. If the affected fruit is still on the tree, inedible and rotten, the fungus can even spread back into the spurs. Damaged, harvested fruit can also be affected. The spores are transmitted three ways: via insects, when infected fruit touches other fruits, and by wind and rain.


Solution

Tree fruit becomes inedible and rather unsightly when a small brown spot gradually encompasses the whole apple, pear or plum. The skin's surface is also peppered with greyish pustules.

Organic

Immediately destroy all contaminated fruit, as well as any damaged ones liable to infection. Cut away and destroy dead shoots or spurs (pruning in the summer for plums, winter for apples and pears) to make sure the disease doesn't survive there over winter. Cut away and destroy any mummified fruits you might have missed during harvesting which have survived into the winter.

Chemical

There is no specific remedy for brown rot, but eliminating apple scab, which can cause fruit to split, will help reduce the likelihood of an attack. Spray the tree with myclobutanil during the summer.




Discuss this problem

Talkback: Brown rot
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chantalou 24/11/2011 at 15:27

We have a small orchard and unfortunately this rot happens every year, especially the last two which have had a high humidity level all year round, especially when sun should have help fruit mature. I shall make extra sure that I leave nothing behind which could further damage next crop. Thanks for the tips you offer. They are very helpful. Chantalou

audrey23 24/11/2011 at 15:28

This is really useful, I too have this problem on our one plum tree. It looks gastly. I always take it off the tree and put it in the compost but I never knew that you had to destroy it. Thanks' so much.

retired70eric 24/11/2011 at 15:29

This was my first year of growing fruit trees. They are bush type apple pear plum and cherry.I had no fruit at all, would this be normal for the first year? I also had leaf blotches and curled leaf which i sprayed with insectacide. A new area for meany tips please?

bowserman1 24/11/2011 at 15:29

I have had a cherry tree for seven years and it has always produced fruit, last year i put a glue band round the trunk and noticed the string had dug into the trunk at the end of the season,i pruned the tree at the begining of the seasonand it produced fruit but the leaves fell off early.This year it has not produced any leaves and no buds and is looking like a tree in mid winter! thank you if you have any advice

Tony18 25/08/2012 at 20:10

Anybody know of a treatment for this as I tried last year and yet again this year the fruit are infected

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