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Author Topic: sweet tart rotting on the stem  (Read 1002 times)

clannewton

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sweet tart rotting on the stem
« on: August 05, 2017, 10:10:04 PM »
This year one of my sweet tart mango trees has all the fruit starting to rot prior to ripening. Any one else having this problem?

TREESNMORE

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Re: sweet tart rotting on the stem
« Reply #1 on: August 05, 2017, 10:21:37 PM »
All the rain has washed the calcium out of the soil. Will cause internal break down.
Mike

Squam256

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Re: sweet tart rotting on the stem
« Reply #2 on: August 05, 2017, 10:31:34 PM »
This year one of my sweet tart mango trees has all the fruit starting to rot prior to ripening. Any one else having this problem?

Post photos. Could be regular old stem-end rot or could be one of the new terrible rots.

clannewton

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Re: sweet tart rotting on the stem
« Reply #3 on: August 06, 2017, 10:08:17 AM »
This year one of my sweet tart mango trees has all the fruit starting to rot prior to ripening. Any one else having this problem?

Post photos. Could be regular old stem-end rot or could be one of the new terrible rots.

Here are some photos of what is happening to the fruit. The last two images are one of the fruit I just pulled off as it is split at the rotted area and attracting flies.






















bsbullie

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Re: sweet tart rotting on the stem
« Reply #4 on: August 06, 2017, 10:23:12 AM »
I cant see any in thise pictures but do you see any distinct star patterns in the middle of the spots that turn black and rot?  Is the rotting initiating from the stem down or on random areas of the fruit?

What care have you been giving them since beginning of fruit set?
- Rob

clannewton

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Re: sweet tart rotting on the stem
« Reply #5 on: August 06, 2017, 11:57:18 AM »
I cant see any in thise pictures but do you see any distinct star patterns in the middle of the spots that turn black and rot?  Is the rotting initiating from the stem down or on random areas of the fruit?

What care have you been giving them since beginning of fruit set?

I don't notice a star pattern on the spot.  And the rotting is not stem specific.  Some start around the stem and others like the first picture is developing the rot around the beak.  So I would say it is more random.  At the beginning of the fruit set this year, I did a copper spray.  But that was it.

Squam256

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Re: sweet tart rotting on the stem
« Reply #6 on: August 06, 2017, 02:05:47 PM »
You've got "the new rot" unfortunately. Hate to see Sweet Tart getting it.

sunworshiper

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Re: sweet tart rotting on the stem
« Reply #7 on: August 06, 2017, 05:34:29 PM »
What's the "new" rot? What causes is? Sorry to see this happening to your fruits!

clannewton

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Re: sweet tart rotting on the stem
« Reply #8 on: August 06, 2017, 06:36:25 PM »
You've got "the new rot" unfortunately. Hate to see Sweet Tart getting it.

Thanks for diagnosis. Any other info you could relate (treatment, is it easily spread to other trees) would be appreciated!

mangomongo

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Re: sweet tart rotting on the stem
« Reply #9 on: August 09, 2017, 12:44:39 PM »
After seeing your post a few days ago I went home and checked my sweet tart only to find the dreaded Bacterial Black Spot on my few sweet tarts that were left on the tree. It had just broke the skin so I cut the bad spot out and have my fingers crossed that the rest of the mango will ripen up ok on the counter.  I hope it doesn't spread to my other trees...

bsbullie

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Re: sweet tart rotting on the stem
« Reply #10 on: August 09, 2017, 03:29:06 PM »
After seeing your post a few days ago I went home and checked my sweet tart only to find the dreaded Bacterial Black Spot on my few sweet tarts that were left on the tree. It had just broke the skin so I cut the bad spot out and have my fingers crossed that the rest of the mango will ripen up ok on the counter.  I hope it doesn't spread to my other trees...

You should have taken pictures first.  I have seen a lot of what people thing is MBBS that turns out to be something else.  It will not ripen too well since you have cut into it.
- Rob

 

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