Mango leaf damage. Cause for concern?

[DSotM]

Hi guys. I haven’t been able to get concrete advice yet on my mango damage. Someone suggested root rot. But investigated my top inch of soil there are tons of healthy white feeder roots and no darkness in the crown. New buds have begun emerging over the past couple weeks and the oldest leaves have dropped off and some of my last set of leaves (about 2 months ago) that didn’t grow in super healthy are dropping and the remaining are getting this grey/raisin, weakening of the stem as pictured. Thanks for any and all advice

[sapote]

pic of the new growth and the main trunk?

It seems to be in bad condition -- root rot or brown trunk die back.

[DSotM]

Here’s some pics, you can see healthy roots in the surface soil

[Guanabanus]

What have the temperatures been during the recent Fall nights?

[DSotM]

What have the temperatures been during the recent Fall nights?

They have been about 52-57

[sapote]

I don't see any new growth at all, and all the leaves look dehydrated. Mango roots are black color and the roots on top of the soil -- whitish -- are not belong to it.  The trunk also looks soft. Sorry to say it's not in good shape.

[DSotM]

So I just dig up the mango. It looks like a neighbors vine was outcompeted my mangoes roots. Here are some shots of the roots. The trunk is very woody and firm, doesn’t feel soft or decaying whatsoever.

[sapote]

You have 30 minutes to plant it back, on a different spot away from competitors. The last photos shows the trunk is not in distressed shape.

[DSotM]

Amazing news. I put it in a pot and have it in shade. I’m just going to keep it indoors over the winter since our cold temps might be too much for it being as stressed as it already as. I believe the stress was due to the jasmine vines, but I can’t be too certain it wasn’t from my queen palms that are planted close to it. Has anyone had experience with palms by mangoes?

[bsbullie]

Hard to see but looks like tbat graft union was very close to the soil or possibly underground at sone point.  This is extremely bad and can kill a tree.  Mangoes should be planted a tad "high", and in any event the graft should definitely be above the soil line and mulch.

[DSotM]

Hard to see but looks like tbat graft union was very close to the soil or possibly underground at sone point.  This is extremely bad and can kill a tree.  Mangoes should be planted a tad "high", and in any event the graft should definitely be above the soil line and mulch.

I think it just appears that way. There’s a cleft graft about 2.5 feet up the trunk

[TNAndy]

When I saw your initial photos of the leaf petioles, my first thought was "fungus".  Your description of gray/raisin weakening adds to my suspicion of fungus.

I see you have already moved the plant indoors where is it likely to be less humid.  This should help and I hope it does.  Good luck!

[DSotM]

When I saw your initial photos of the leaf petioles, my first thought was "fungus".  Your description of gray/raisin weakening adds to my suspicion of fungus.

I see you have already moved the plant indoors where is it likely to be less humid.  This should help and I hope it does.  Good luck!

Thanks for the advice. I’ll be spraying need on it soon. I can’t belivr there’s a humidity issue. Central Valley is very t
Dry.