Mango Plant (in pot) rotten bark & trunk Please Help (forum)

ppnuwan starts with ...
I bought this mango tree recently off gumtree and the lady who sold it to me advised that it was planted in this pot a few weeks ago and should be good to stay there for a while before moving to the ground.
It's really wet these days in Perth, therefore, I didn't water the plant since I bought it (it was raining almost every day since anyways).
Mango, being a tropical plant, loves the sun, therefore I put it outside. But this also meant that it received plenty of water (in fact very cold water) due to the constant pouring over here.
To my horror, a couple of days ago I realised the bark of one of the branches close to the soil level is peeling off and the trunk look almost dead with no apparent life (brownish colour).
The soil seems pretty wet (obviously).
In close inspection, I do see that similar characteristics are appearing on the other couple of branches of the tree as well (I've been told that it's a single tree underneath the soil).
I really really want this tree to be kept alive (paid good money for it in the first place).
Out of fear of doing any damage to the tree by overtreating, I didn't do anything (didn't water, didn't put fertiliser etc.) The leaves and the upper trunks seem all good but I also notice that the top stems coming out are a bit dried/ brownish as well.
As you can understand I am not an expert in trees (except for the fact I love them), therefore, any advice from you experts would be really really appreciated. A lot of love and Thanks in advance.
Pictures - Click to enlarge

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Time: 31st July 2022 2:09pm

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About the Author ppnuwan
FORRESTFIELD 6058 WA Australia
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jakfruit etiquette says...
It seems to be planted too deep. The multiple stems shouldn't be under the soil.
Is it a seedling, cutting or marcott ??
Also what mix is in the pot ?
Basically the bark is rotting away by the looks.
I would remove the soil to just above the roots.
Might need a fungicide treatment on the cracked bark.

Time: 7th August 2022 7:03pm

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About the Author jakfruit etiquette
MERBEIN,3505,VIC
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Edward3 says...
I don't quite understand what you mean about it being a single tree under the soil. If it means that it has a single trunk which then developed 3 branches and the soil was then added in the pot above the point where it had branched out, that's not a good idea and is probably why the bark had started to rot away. The stem where the bark had come off is doomed and the other stems are also likely to do the same.

If it's not too late, you could remove the soil from the top till you reach the single main trunk. If the bark on the remaining 2 stems is not rotted yet, you may be able to save them.

Time: 7th August 2022 10:49pm

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Avo L134 says...
If it is in fact a "single tree" then there should only be ONE trunk coming up/out of the soil. The fact that there are a few coming out from the soil is suggesting that the seller has potted your mango way too high above where it should be and as a result the branches have rotted. If I was you, I would remove as much soil as possible to get down to the single trunk, hopefully it is not too late. Unfortunately from your pictures, those branches where the bark has come away, it is too late.

Time: 8th August 2022 11:22am

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Original Post was last edited: 9th August 2022 10:54am
About the Author Avo L134
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ppnuwan says...
Thanks everyone for your kind answers.
I should have mentioned, it's probably a seedling where multiple stems are not abnormal (I can't know this for a fact unless I remove the plant out and risking damaging the root ball as well which seems healthy). I am not able to remove any more soil as the root ball starts just from there and the tree is already wobbly (hence the supporting pole etc).
In the interim I replanted the tree on ground, made sure excess soil around stems are out and cut majority of branches coming from rotten stem (hoping that it'll redirect the nutrients to the other stems). I also used some fungus control stuff (copper as generally they call it) now waiting to see what happens.


Time: 10th August 2022 7:40am

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jakfruit etiquette says...
I was wondering if it was a Marcott, that is a cutting rooted in a bag on a branch ?
If so it might have been planted too deep to hold it up in the new pot.
Planting too deep seems to be the problem either way.
Painting the damaged bark with Copper Oxychloride paste might stop it getting worse.

Time: 10th August 2022 9:03am

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