Author Topic: Mango Pests, Diseases, and Nutritional Problems  (Read 441822 times)

Guanabanus

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2275 on: July 28, 2022, 05:00:39 PM »
Have you done a soil test?
Har

Jaboticaba45

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2276 on: July 28, 2022, 05:19:48 PM »
Tell me what I should do with this mango tree

Hi, this Glen mango has been in the ground for one year and has really grown well at the top. However as you can see the trunk is not keeping up and it pretty limber considering the mass of foliage, and requires a tripod of stakes to protect it from wind. I bought the tree in this general shape but much smaller and thinner at that time. The trunk diameter has doubled (to 1.5") however the top has more than quadrupled.

The top is 5 feet wide, the trunk is 4 1/2 feet tall from ground to foliage and is 1-1/2 inches thick. I am afraid that at some point in time the trunk will not be able to sustain the top foliage, so I am asking if there is a specific formula of fertilizer that will focus on growing and strengthening the trunk; or do I need to severely cut back the top to the primary nodes on each  branch; or is this tree a lost cause?

Appreciate the help!


I'm also curious about this. This happens in a lot of my mangoes up here. I was thinking it was because of no wind in the greenhouse, but I've put fans galore and still the branches are quite weak although stronger. I'd be curious if there is a nutrient or nutrients responsible for branch strength? If so, I'd love to see the fix!

Guanabanus

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2277 on: July 28, 2022, 08:09:35 PM »
Copper, Calcium, and Silicon are important to strengthen wood.
Har

Calusa

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2278 on: July 28, 2022, 09:52:15 PM »
Thank you!

JCorte

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2279 on: July 29, 2022, 10:42:43 AM »
Calusa,

In addition to the proper nutrition, I wonder if the way you are staking and supporting the tree contributes to the trunk remaining week.  I have found that loosely staking my plants so they are able to move is best.  When a plant is not able to support its own weight I will space three stakes away from the trunk and tie with a strong nursery tape that will not bind or scratch the branches, allow movement but at the same time keeps the plant upright.  I would also thin out some of the branches to relieve some of the weight while the trunk strengthens.  Tight staking over a long period of time may contribute to weak trunk and branches.  When I start seedlings in an indoor area, I will brush my hands over the plants regulary, use a fan, or blow on the seedlings when young to strengthen them.

Janet

Calusa

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2280 on: July 29, 2022, 11:28:31 AM »
Thanks Janet - I actually intend to follow that loose staking method which was also recommended by pineislander in another thread I started on this topic. Also I have cut the top growth way back and removed a few branches, and I am going to girdle the trunk about 3' off the ground to promote some growth lower on the trunk.

Again, thanks!

Guanabanus

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2281 on: July 29, 2022, 03:59:06 PM »
Girdling starves the roots.

Chipping just above buds that you want to grow, will probably work.
Har

Carbo

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2282 on: August 01, 2022, 09:26:46 AM »
My Pickering gave me a good crop this season.  Plenty of fruit, and after a bland handful of mangos to start the season, they were positively stinkin' delicious.  Now, I'm looking at the tree and I'm seeing a lot of leaves that indicate something is wrong.  Any ideas?  Thank you.






CarloGolfer

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2283 on: August 01, 2022, 08:01:17 PM »
Here's a question: would it be a problem to plant a mango tree 20-30' downhill from a septic tank/field? I guess this is a question to get ahead of any problems. I can't find any consistent advice out there.
« Last Edit: August 01, 2022, 08:02:49 PM by CarloGolfer »

Guanabanus

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2284 on: August 01, 2022, 10:21:12 PM »
I don't know anything about how far seepage will go.  I imagine that that will vary per soil, etc.

High nitrogen will degrade the quality of most mangos, perhaps India-type especially.

Nam Doc Mai is tolerant of high-Nitrogen.
Har

mangoba

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2285 on: August 02, 2022, 07:14:33 PM »
My Pickering gave me a good crop this season.  Plenty of fruit, and after a bland handful of mangos to start the season, they were positively stinkin' delicious.  Now, I'm looking at the tree and I'm seeing a lot of leaves that indicate something is wrong.  Any ideas?  Thank you.






Did you spray anything recently? Did you fertilize?

CarloGolfer

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2286 on: August 02, 2022, 07:47:56 PM »
I don't know anything about how far seepage will go.  I imagine that that will vary per soil, etc.

High nitrogen will degrade the quality of most mangos, perhaps India-type especially.

Nam Doc Mai is tolerant of high-Nitrogen.

Here is a picture of the area in question. I put in a pickering a couple weeks ago which you can see on the left. It's about 30' from the edge of the septic field. The septic field is also about 4-5' higher in elevation.



Jaboticaba45

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2287 on: August 02, 2022, 08:38:57 PM »
Copper, Calcium, and Silicon are important to strengthen wood.
Thanks for the information Guanabanas.
Would 8-3-9 fertilizer cover those nutrients or do I need to buy seperate  items?
Would me under fertilizing the trees contribute to weakened branches due to less air flow and lack of those nutrients? Is there a way to see if my trees are actually lacking those nutrients?

Carbo

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2288 on: August 03, 2022, 09:07:54 AM »
Did you spray anything recently? Did you fertilize?
Haven't sprayed anything.  About two weeks ago I gave a feeding of 8-3-9 fertilizer and some pelletized gypsum.  I have used both previously without any problems.  I also fed both to my Honey Kiss tree and it isn't showing any similar symptoms.

EddieF

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2289 on: August 09, 2022, 01:55:20 PM »
Fertilizer question.
Mr Har, wondering if mixing these 2 fertilizers 1:1 would be best for my trees in ground almost 2yrs.
12-8-6 is for citrus, 6-3-16 for bananas.  Micros combined look ok?  Good amount of Manganese in 12-8-6.
And Calcium question, is 1/3rd a good ratio to add say, 1lb Ca for every 3lbs of fertilizer?  Sandy soil.

Trees i picked based on members here, tt tasting table vids & my preferences are Peach Cobbler, Phoenix, M4, Maha, Cogshall.  Pickering & Raw Honey not in view.

Thank you,
Ed








FruitGrower

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2290 on: August 09, 2022, 05:31:37 PM »
I don't know anything about how far seepage will go.  I imagine that that will vary per soil, etc.

High nitrogen will degrade the quality of most mangos, perhaps India-type especially.

Nam Doc Mai is tolerant of high-Nitrogen.

Here is a picture of the area in question. I put in a pickering a couple weeks ago which you can see on the left. It's about 30' from the edge of the septic field. The septic field is also about 4-5' higher in elevation.




I canít specifically answer your question but I planted around my drain field (same elevation) and I used these (Sidewalk Shield - Tree Root Control Barrier (Standard Duty - 18 inch Depth, 15 feet) https://a.co/d/cNutBLR) in between to provide a barrier. Maybe that can be an option for you.

FruitGrower

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2291 on: August 10, 2022, 10:21:33 AM »











Any ideas of what may be going on with the trunk of my sugarloaf mango and what, if anything, I can do?

EddieF

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2292 on: August 10, 2022, 01:33:29 PM »
I had similar happen from support stick.  Rubbed trunk, got infected, ng,
Removed stick, cut trunk off below area, was above graft (as yours looks) & grew back.
Orange sherbet.  It's currently in pot cause i didn't expect it to survive & put m4 in its place.

I will never buy another tree without inspecting trunk & remove stick soon as its home.

FruitGrower

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2293 on: August 10, 2022, 06:27:33 PM »
Thank you!!

mangoba

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2294 on: August 10, 2022, 06:42:57 PM »







Any obvious deficiencies/toxicities here please?

Guanabanus

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2295 on: August 10, 2022, 08:29:59 PM »
Eddie F,
One pound gypsum per two pounds 6-3-16.  The other fertilizer is not likely appropriate for mangos.
Har

Guanabanus

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2296 on: August 10, 2022, 08:36:42 PM »
Fruit Grower,
Trunk sunburn or freeze damage,
Weed whacker or wheelbarrow damage.

Cut whole tree off below the damage to re-grow from there,
or leave as is, and
keep tree very short, until wound heals over.  It will become hollow there.
Har

Guanabanus

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2297 on: August 10, 2022, 08:53:10 PM »
Mangoba,
Potassium deficiency.
Har

EddieF

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2298 on: August 10, 2022, 09:39:04 PM »
Har, thank you.  Manganese will be next question, after i see tomorrow what % i bought a couple yrs ago.  Never opened it, life's been busy.  Hat's off to ya for all you do.  I must've watched 100 tt vids since starting my mango quest.  Good job.

EddieF

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2299 on: August 12, 2022, 08:37:53 PM »
Har, i realize a soil test is route i should take before adding manganese sulfate.  Leaves don't show any signs of deficiency of it.  What i have is 32% manganese, 56% sulfate.  A little goes a long way by what i've read.

Calcium deficiency i do have it appears on those young trees, if what i researched is correct.
Trunk bark has tiny cracks as if dry old skin.  Some branches where they attach to trunk look to have crack around them too. I applied gypsum.

Wondering if i mix some with water & paint on with brush, would that help?  Hurt?


Thanks,
Ed

 

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