Author Topic: Mango Pests, Diseases, and Nutritional Problems  (Read 432396 times)

pineislander

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2300 on: August 12, 2022, 10:49:03 PM »

Any ideas of what may be going on with the trunk of my sugarloaf mango and what, if anything, I can do?
Looks like tree was beating against the stake. I saw one which was staked with a metal t-post during Hurricane Irma it beat the trunk up like crazy.

Guanabanus

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2301 on: August 13, 2022, 07:37:46 PM »
Whitewashing tree trunks with lime is a traditional esthetic practice.  Doesn't hurt.  Helps?
Har

EddieF

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2302 on: August 15, 2022, 08:17:47 PM »
Har, a whitewashing 101 video would be great!
I know nothing about it, what to buy or mix, how it helps, blocking sunlight, reducing heat, soften bark?

I thought of gypsum wash cause we know gypsum helps fruit expand without splitting.
But it'd be brown, not light reflective & who knows if it would absorb & help.

Do the splits/cracks heal over time when applying gypsum to soil?
I'll take a few pictures tomorrow.

Thank you.

shinzo

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2303 on: August 16, 2022, 11:05:40 AM »
Dear all,
My mango seedling (unknown variety) has suddenly this strange flush (the previous flushes in the season were normal), but the current one, the shoots seem to get curved since the past three days. Could it be the extreme heat wave in my city of the past 3 days (over 100F) that makes them curve like this? I am watering it each 3 days. The soil is clay and still moist under the top layer between the waterings








Here is a picture of the whole tree 5 days ago before the flushes started curving):



« Last Edit: August 16, 2022, 12:03:05 PM by shinzo »

behlgarden

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2304 on: August 16, 2022, 11:50:35 AM »
one thing I noticed is whether we have seedlings or grafted plants, they do well leading to summer heat. if we tinker with them in Summer like graft more onto a nice flushing tree, it for some reason start getting diseases. I lost 3 healthy ones this summer, and I have two seedlings that were grafted Last October are doing great. planning on not touching them any further. Also, refrain pruning them when temps are consistently hitting above 100 in So Cal.

mangoba

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2305 on: August 16, 2022, 01:26:53 PM »
Shinzo, were you shading the tree at some point? It seems to me that the branches are heading towards the same direction so I'm guessing the lights/shade got them confused.

JakeFruit

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2306 on: August 16, 2022, 01:35:26 PM »
Dear all,
My mango seedling (unknown variety) has suddenly this strange flush (the previous flushes in the season were normal), but the current one, the shoots seem to get curved since the past three days. Could it be the extreme heat wave in my city of the past 3 days (over 100F) that makes them curve like this? I am watering it each 3 days. The soil is clay and still moist under the top layer between the waterings








Here is a picture of the whole tree 5 days ago before the flushes started curving):



Looks normal, new growth is always bendy, especially on a young tree with thin branches. Heat wave is probably adding some stress and could be a factor in the bending, but I'd just leave it.
I'd suggest adding some more days between with that watering schedule; sounds like your soil doesn't drain very well, and constantly damp roots can cause problems.

shinzo

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2307 on: August 16, 2022, 03:28:52 PM »
Thank you Mangoba and Jakefruit for your replies.
@ Mangoba: No i didn't shade the tree.
I hope it will get back to normal or at least that the curves decrease. I tried to stake them to small chopsticks but it was difficult to keep them in place and i was affraid to break them, so i left them as they are.
Edit : I couldn't keep myself from figuring out how to realign those branches, and i found the idea of rolling small rectangles of relatiely hard paper on them , i could thus adjust each "tube" to the height desired. I hope they will not bake inside in the heat of the morning (white paper + openings in the bottom and the top, i hope this will reduce the baking).


« Last Edit: August 16, 2022, 04:23:59 PM by shinzo »

Victoria Ave

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2308 on: August 22, 2022, 11:27:18 AM »
Hi all, what is causing this leaf curl on my new growth. I havenít seen my trees do this in a while and usually I would think it is insects but I havenít seen any on the new leaves (usually see evidence of ants)






Guanabanus

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2309 on: August 22, 2022, 04:07:45 PM »
probably aphids or scales.
Har

Victoria Ave

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2310 on: August 23, 2022, 12:20:50 AM »
I have sprayed with a new oil solution and will keep it up every 3 days. Hopefully that will end whatever is doing it

mangoba

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2311 on: August 31, 2022, 05:07:37 AM »









Do you notice any concerning issues besides a Potassium deficiency that I'm treating already please? I'm just worried that the leaf necrosis spot up in the leaf by the petiole in the first image is telling more than K deficiency?

Guanabanus

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2312 on: August 31, 2022, 10:37:13 PM »
Not Potassium deficiency.  Likely salt burns/sunburns.
Har

mangoba

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2313 on: September 01, 2022, 01:00:24 AM »
Sun burn is indeed very likely but Iím also concerned about the former. Here is how Iím currently feeding these in ground seedlings.

https://tropicalfruitforum.com/index.php?topic=48716.0
« Last Edit: September 01, 2022, 10:22:44 AM by mangoba »

Guanabanus

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2314 on: September 01, 2022, 02:10:27 PM »
Spaugh's recommendation on that other thread sounds reasonable.
Har

mangoba

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2315 on: September 01, 2022, 03:39:25 PM »
Spaugh's recommendation on that other thread sounds reasonable.

Har, if I follow that rate throughout the growing season I would end up at best with just 0.2*10*26 = 52g about 10 folds less than UF recommended rate?

Guanabanus

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2316 on: September 01, 2022, 08:48:45 PM »
I normally expect to apply granular fertilizer;  then anything added to the irrigation or spray is extra.
Har

Amy K

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2317 on: September 02, 2022, 02:42:30 PM »
I'm not sure what's happening to my new leafs. This is a mango tree grown from seeds. It is about 3 years old and currently live in a 10 gallon pot. It was a healthy looking tree. Recently i bought a cutting and did my first graft on the lower branch about a week ago. Now i notice this black spots all over my new leafs at the higher branch. The lower branch is looking fine still. This is my first mango tree so i hope i didn't bring some kind of disease to it with budwood.

First two pictures show the front and back of the affected leaves. The last picture is the branch below the graft





« Last Edit: September 02, 2022, 02:47:30 PM by Amy K »

boxturtle

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2318 on: September 02, 2022, 11:22:44 PM »



What would cause the bark to be like this?

Guanabanus

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2319 on: September 03, 2022, 08:18:13 PM »
Amy K,
Spray with Copper.
Har

Carbo

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2320 on: September 04, 2022, 07:25:19 PM »
Honey Kiss, in ground for one year.  Previous growth flush and now this one looks like this.  Otherwise the tree appears healthy.




fruitnut1944

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2321 on: September 04, 2022, 08:03:09 PM »
The Honey Kiss has iron deficiency. Usually due to high pH or excess water. Chelated iron has worked for me. But I'm not certain that will work for every case.

Amy K

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2322 on: September 04, 2022, 08:27:24 PM »
Amy K,
Spray with Copper.

I'm not sure if you meant i need to spray my plant with copper or it been spray with copper. Either way, i haven't spray it with any thing yet

Seanny

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2323 on: September 06, 2022, 12:10:13 AM »
Boxturtle,

sunburn

fruitnoob

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #2324 on: September 06, 2022, 11:29:59 AM »
Admins: could you please pin this thread? It is super helpful, especially to newbies like myself.
Edit: This thread was already pinned here https://tropicalfruitforum.com/index.php?topic=4.0 (#11). Thanks Admins, and sorry.
« Last Edit: September 09, 2022, 08:30:22 PM by fruitnoob »
Tom

 

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