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Author Topic: Mango Pests, Diseases, and Nutritional Problems  (Read 286084 times)

Guanabanus

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #1525 on: April 20, 2020, 10:14:31 AM »
We do need a picture.  I am not picturing that in my mind.  Don't think I have seen such.
Har

Tropheus76

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #1526 on: April 20, 2020, 05:09:37 PM »

Only a couple have this.

Guanabanus

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #1527 on: April 20, 2020, 06:18:51 PM »
You're right, that that is weird!  No idea!
Har

weiss613

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #1528 on: April 26, 2020, 02:02:53 PM »
The lines on this mango come from itís condo heritage. One of its parents is an old lady in Hallandale Florida who is known for having the worst varicose veins in the neighborhood!!!

dross99_si

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #1529 on: April 26, 2020, 04:30:59 PM »
We have some black splotchy coloration on young branches of our Carrie mango. It does not come off when I try scrubbing or scraping it so I do not suspect it to be sooty black mold. Only on the branches, not leaves. No scale or other pests to be found. What exactly is this, should we be worried and how can we treat it?
Thanks!












Cookie Monster

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #1530 on: April 26, 2020, 09:09:20 PM »
It's benign.
Jeff  :-)

dross99_si

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #1531 on: April 26, 2020, 09:18:17 PM »
thanks
« Last Edit: April 27, 2020, 09:41:24 PM by dross99_si »

DSotM

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #1532 on: May 03, 2020, 09:24:39 AM »
Hi guys! Any clue what damage we are seeing here? Theyíve taken full sun for two years now so I donít believe itís sun related (although this is first flush so maybe that plays a roll)z




Guanabanus

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #1533 on: May 03, 2020, 11:44:16 AM »
Looks like Powdery Mildew.
Har

tropical-farmer

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #1534 on: May 03, 2020, 12:15:16 PM »
I am seeing this in my new flushes in Carrie, interestingly some branch flushes donít have this. This is leading me to believe its a chemical burn or a deficiency but i want to be sure. No recent fertilizer applied but my wife has raised beds around where she puts topping of dried horse manure with mulch. The tree is not irrigation daily and looks otherwise healthy. Had 30% flowers this year and around 15 mangoes reached golf ball size then turned yellow and dropped all but one. Any idea if this is a deficiency vs burn vs pest?







Satya

Guanabanus

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #1535 on: May 03, 2020, 12:51:55 PM »
I don't recognize that interveinal bronzing.

The dessicated, turned-up tips appear to have been killed by Powdery Mildew.

Some of the green leaves are showing deficiency of Manganese.
Har

tropical-farmer

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #1536 on: May 03, 2020, 05:53:53 PM »
Thanks Har. I will do the Micronutriets foliar spray asap. The bronze intervenial discoloration is a mystery.
Satya

pdang

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #1537 on: May 03, 2020, 06:22:52 PM »
Are these leaves normal for my LZ? Some of the new leaves are coming out twisted/curled + have slight browning/yellowing at the very tips. Some leaves also show a little bit of browning on the edges of the leaves as well. The newer sprouts at the bottom are perfectly shaped & colored compared to the leaves at the top. I recently did a micro-nutrient spray and a iron soil drench, but it hasn't been that long enough to show any effects. I also recently fertilized with a weak fish & kelp emulsion mix. This LZ is also planted in a heavy clay soil that has been amended with a potting mix. 

PS: Ignore the red mulch!







Guanabanus

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #1538 on: May 03, 2020, 09:42:47 PM »
Damage on mango new growth in the Spring, is almost always due to Powdery Mildew and/or wind.
Har

fliptop

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #1539 on: May 03, 2020, 10:51:31 PM »
Here's a weird one. This is my sole Ice Cream Mango from the first bloom.

There had been a second mango on the tree that fell off when quite young--would it touching this mango cause this?

The spot is soft but the mango is firm. The mango sap smelled normal, and there's no detectable off odors coming from that spot.

Any ideas? Thanks!


stephen

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #1540 on: May 03, 2020, 11:38:05 PM »
Hi, everyone! I just realized that there's a whole thread on problems for mangos! This is great :) Please forgive me for posting my question again. Just wanted to confirm if the cause of the black spots on this nam doc mai that I received recently is anthracnose. If so, should I go ahead and spray it with copper to keep it from spreading? I'd appreciate your wisdom, as I'm new to growing mangos. I'm in Southern California. Thank you!








Oolie

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stephen

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gychang

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #1543 on: May 04, 2020, 01:55:14 AM »
any ideas what this is?  It was planted in the ground 3 weeks ago w/o fertilizer.. new flush came out a week and a half ago.


LarryG

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #1544 on: May 04, 2020, 09:15:05 AM »
I planted an Angie mango tree 5 years ago. It has produced well the past two years, always very clean fruit with nice color. This year several of the fruit are splitting but not in the star shape typical of BBS. The leaves appear to be healthy. I don't believe that excessive rain is a factor. Any ideas?






Guanabanus

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #1545 on: May 04, 2020, 08:54:52 PM »
Fliptop, my only guess on that is hail damage, or from a thrown rock.
Har

Guanabanus

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #1546 on: May 04, 2020, 09:08:46 PM »
gychang.  It could be the start of Powdery Mildew, or it could be fertilizer burn, such as from urea.  Many soil mixes have urea, and fresh manures and partially-cured manure composts have urea, and urine has urea--- such as dog pee.
Har

Guanabanus

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #1547 on: May 04, 2020, 09:21:52 PM »
LarryG,
Deficiency of Calcium, or deficiency of other elements that affect the use of Calcium:  especially Boron, Copper, Silicon, Zinc.
Har

stephen

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #1548 on: May 04, 2020, 10:06:02 PM »
Har, can you please confirm my photos as well? I'd really appreciate it. Thank you!

gychang

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Re: Mango Pests, Diseases, and Nutritional Problems
« Reply #1549 on: May 04, 2020, 10:19:58 PM »
gychang.  It could be the start of Powdery Mildew, or it could be fertilizer burn, such as from urea.  Many soil mixes have urea, and fresh manures and partially-cured manure composts have urea, and urine has urea--- such as dog pee.

Thanks Har!

Think it's too late to spray with copper?  Also, is there an alternative you guys know of?  I live in Hawaii and it's upwards of 86-87 a lot of days here so i'm concerned about sun damage after copper.
« Last Edit: May 04, 2020, 10:26:25 PM by gychang »

 

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