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Help me diagnose the problem with these peach trees please

 
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Hi all, new member and new to growing fruit trees. I’ve got a few Elberta and belle of Georgia varieties. They’re “dwarves” I got from Gurneys because supposedly they don’t get as big. I don’t have a lot of space. Anyways, I’ve had these trees a few years and they’ve grown well. This is their first year producing fruit. I’ve noticed that the peaches have brownish/blackish spots on them and some of them have a clear gummy substance on them that I’d call tree sap if I didn’t know better. Ive done nothing, I am trying to be as organic as possible. But I guess my question is should I be spraying something? If so what? Is there an organic solution? I’ve included pics. Thanks for any replies.
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Posts: 37
Location: Minneapolis, MN, USA - Zone 5a/4b
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Sounds like bacterial spot. I have this on my peach tree. The gummy "exudate" is a good sign and I can see your leaves have the "shot hole" pattern.

I think there might be some organic copper sprays but I haven't tried anything for control yet so I can't speak to that. I think you often have to have very accurate timing with sprays for them to be effective, and I'm just not willing to make that time investment at the moment. As far as I know, the infection doesn't hurt the tree itself much, so how much effort you put into control depends on how much you care about the effect on the fruit.

For me the severity of infection seems to vary a lot from year to year. Last year was terrible. This year, despite being extremely wet, it's looking like it will be pretty mild. When the infection is bad, it doesn't spoil the fruit but it can give the skin a very unattractive and unpleasant rough texture. If you're peeling and preserving, it's not too big a deal. It definitely makes them less appealing for fresh eating, though.
 
Ian Young
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Location: Minneapolis, MN, USA - Zone 5a/4b
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Oops, accidental double post.
 
steward
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Location: USDA Zone 8a
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That looks like black spot to me, if not a fungal disease.

Here is a thread with some fungicide recipes:

https://permies.com/t/93537/toxic-Fungicide

I bet one of those will solve your problem.

This is usually cause by too much rain like we are having from all the hurricanes.
 
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