Plum problem

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Stephen
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Plum problem

Postby Stephen » Sun Aug 02, 2020 8:10 pm

On the "Coe's Golden Drop" plum tree, which ripens late, some plums are rotten but unripe. Those not showing as rotten are still rock hard.
The tree is about 15 years old.
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Primrose
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Re: Plum problem

Postby Primrose » Sun Aug 02, 2020 9:15 pm

Not much of a tree fruit expert but something has obviously happened to some of them.
Wonder if its worth picking some of the hard unripe fruit early so that perhaps they have a chance to ripen off the tree away from whatever is causing the infection?
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sally wright
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Re: Plum problem

Postby sally wright » Mon Aug 03, 2020 7:18 am

Dear Stephen,
looks like a classic case of brown rot to me. You need to pick off as many of the affected plums as possible and bin them - DO NOT compost them. The spores may survive the heap and go on to infect other things in your garden. This rot will affect the fruit of most trees so make sure you keep things clean. Some may fall off but most of these affected fruits will continue to hang on to the tree over winter as shrivelled 'mummies'. When you get the ladders out to do your winter prune all these shrivelled fruit should be removed as well as any remaining fruit on the ground. If they are left they will reinfect your trees next summer and the problem will get worse. It is best if you can get the rotting fruit off the trees before the pustules on the outside form as they are the spore bodies that will infect the rest of the crop.
Regards Sally Wright.
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Stephen
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Re: Plum problem

Postby Stephen » Mon Aug 03, 2020 8:26 am

Hi Sally
Your expertise is very welcome. It's like having our own personal GQT!
Thank you. I will follow your advice (it involves a bit of going through the compost heap).
Stephen
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Kayburton
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Re: Plum problem

Postby Kayburton » Thu Sep 10, 2020 1:55 pm

I would also advise to treat the tree (and preferably those trees that are nearby) with a fungicide. Search the internet for a suitable option or ask at a farm store.
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Alicgmood10
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Re: Plum problem

Postby Alicgmood10 » Thu Oct 08, 2020 10:43 am

It's some disease
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