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Author Topic: Mango Tree Oozing Brownish Orange Sap  (Read 881 times)

Johnny Redland

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Mango Tree Oozing Brownish Orange Sap
« on: February 14, 2018, 08:52:11 AM »
As you can see from the photo, my juvenile Golden Nugget Mango tree is oozing this ugly orange sap from several places. The tree took it the hardest out of all my mango trees after the few cold snaps we had this winter.  Would this have anything to do with it? Is this something to be concerned about? Tree looks worse than frozen dog sh*t now.



FruitFreak

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Re: Mango Tree Oozing Brownish Orange Sap
« Reply #1 on: February 14, 2018, 04:01:38 PM »
As you can see from the photo, my juvenile Golden Nugget Mango tree is oozing this ugly orange sap from several places. The tree took it the hardest out of all my mango trees after the few cold snaps we had this winter.  Would this have anything to do with it? Is this something to be concerned about? Tree looks worse than frozen dog sh*t now.



Definitely concerning.  Looks to be on the decline. Did it incur any drought stress or flooding?
- Marley

Johnny Redland

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Re: Mango Tree Oozing Brownish Orange Sap
« Reply #2 on: February 14, 2018, 04:08:50 PM »
As you can see from the photo, my juvenile Golden Nugget Mango tree is oozing this ugly orange sap from several places. The tree took it the hardest out of all my mango trees after the few cold snaps we had this winter.  Would this have anything to do with it? Is this something to be concerned about? Tree looks worse than frozen dog sh*t now.



Not really. Just the two cold snaps near 39F. There is some new flush coming out now, so thatís a positive sign but otherwise itís a crispy tree

Definitely concerning.  Looks to be on the decline. Did it incur any drought stress or flooding?

dmwong93

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Re: Mango Tree Oozing Brownish Orange Sap
« Reply #3 on: February 14, 2018, 04:17:13 PM »
Got some anthracnose of the leaves too.

WGphil

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Re: Mango Tree Oozing Brownish Orange Sap
« Reply #4 on: February 14, 2018, 04:56:00 PM »
Freeze damage. Cut it back and it will grow out ok.

Johnny Redland

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Re: Mango Tree Oozing Brownish Orange Sap
« Reply #5 on: February 14, 2018, 06:49:23 PM »
Freeze damage. Cut it back and it will grow out ok.

Gotcha. I figured but just wanted a second opinion before hacking away. Thanks!

Squam256

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Re: Mango Tree Oozing Brownish Orange Sap
« Reply #6 on: February 14, 2018, 06:58:05 PM »
If your low was 39F then that is not freeze damage.

Let us know if thereís any stem dieback.

wslau

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Re: Mango Tree Oozing Brownish Orange Sap
« Reply #7 on: February 14, 2018, 07:50:31 PM »
Looks like Gummosis.
Warren

Johnny Redland

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Re: Mango Tree Oozing Brownish Orange Sap
« Reply #8 on: February 14, 2018, 08:09:40 PM »
Looks like Gummosis.

Yes it does. I read that freeze damage can be one of the triggers. But Squam is right, that recorded temps did not get below 38F as far as I can remember

Vernmented

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Re: Mango Tree Oozing Brownish Orange Sap
« Reply #9 on: February 14, 2018, 09:17:47 PM »
I have had similar issues in the past with potted mangos and heavy rains. The overwatering was probably the main issue but they most likely had some micronutrient deficiency as well. How much water have you been giving them?
-Josh

Johnny Redland

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Re: Mango Tree Oozing Brownish Orange Sap
« Reply #10 on: February 14, 2018, 09:26:44 PM »
I have had similar issues in the past with potted mangos and heavy rains. The overwatering was probably the main issue but they most likely had some micronutrient deficiency as well. How much water have you been giving them?

I irrigate every 2 to 3 days during winter for around 40 minutes. All other mango trees on my property look stellar

WGphil

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Re: Mango Tree Oozing Brownish Orange Sap
« Reply #11 on: February 15, 2018, 08:41:14 AM »
Nope if temps werenít that low itís something else

The leaves looked frozen. I had a frozen tip on one of my trees that had same problem.   Cut it out when I was pruning out the cold damage. 

Hasnít come back. 


Vernmented

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Re: Mango Tree Oozing Brownish Orange Sap
« Reply #12 on: February 15, 2018, 08:45:58 AM »
It sounds and looks like waterlogging to me but I am far from a mango expert.
-Josh

Johnny Redland

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Re: Mango Tree Oozing Brownish Orange Sap
« Reply #13 on: February 15, 2018, 09:10:07 AM »
I'm just going to hack it back, fertilize with micros, and cut watering back to once per week on that tree and see how that goes.  Other than Abiu, this would be the first out of 40+ trees that I've lost so if I have to replant, no biggie.  But my mango trees shine in the summer down here, so it has the best chance its gonna get at recovering. Man.....Abiu is a PITA

Vernmented

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Re: Mango Tree Oozing Brownish Orange Sap
« Reply #14 on: February 15, 2018, 10:59:52 AM »
Abiu is a major PITA but it is also one of the best fruits known to man. I will continue murdering them until they submit or I end up living on the streets from buying too many seeds and plants and not paying my bills.
-Josh

Johnny Redland

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Re: Mango Tree Oozing Brownish Orange Sap
« Reply #15 on: February 15, 2018, 11:22:41 AM »
Abiu is a major PITA but it is also one of the best fruits known to man. I will continue murdering them until they submit or I end up living on the streets from buying too many seeds and plants and not paying my bills.

Well then...let us suffer together my friend

Tropheus76

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Re: Mango Tree Oozing Brownish Orange Sap
« Reply #16 on: February 16, 2018, 08:37:52 AM »
Same problem on my Lemon Zest. I saw several spots that looked like brownish red bubbles appearing to be sap. We had temps in the upper 20s for several nights. Not a single green leaf on them currently but scratching the bark reveals green. Spray it with neem?

BajaJohn

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Re: Mango Tree Oozing Brownish Orange Sap
« Reply #17 on: February 16, 2018, 09:55:16 AM »
The oozing sap is a symptom of gummosis which is a sign of damage to the plant. One unfortunate cause is a fungal infection caused by Botryodiplodia theobromae also known as Lasiodiplodia theobromae. It is characterised by discolored vascularisation. Recommended treatment is to cut off the damaged branches and seal the cuts with Bordeaux paste. A recommended fungicide is Cidely Top from Syngenta
This is a good description with photographs of the problem in young plants. http://www.entomoljournal.com/archives/2017/vol5issue5/PartN/5-5-172-762.pdf
Here are some other sources.
http://krishikosh.egranth.ac.in/bitstream/1/75378/1/D9550.pdf
http://www.agricultureinformation.com/forums/general-questions-answers/101606-gummosis-disease-mango.html
https://www.plantmanagementnetwork.org/pub/php/diagnosticguide/2004/mango/

Johnny Redland

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Re: Mango Tree Oozing Brownish Orange Sap
« Reply #18 on: February 16, 2018, 10:05:09 AM »
Same problem on my Lemon Zest. I saw several spots that looked like brownish red bubbles appearing to be sap. We had temps in the upper 20s for several nights. Not a single green leaf on them currently but scratching the bark reveals green. Spray it with neem?

I've got a bunch of new green little sprouts coming out now, so what I did was cut back the burnt tips far enough to see green wood, but not far enough to remove any green sprouts that are shooting out of the branching.  I think this will help the tree recover, especially with spring around the corner.

Tropheus76

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Re: Mango Tree Oozing Brownish Orange Sap
« Reply #19 on: February 16, 2018, 04:54:56 PM »
My sap issues are on the lower trunk so chopping it isnt going to help I think.

 

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