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Author Topic: Is this citrus greening?  (Read 682 times)

Lory

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Is this citrus greening?
« on: April 17, 2017, 11:09:56 AM »
Among my citrus trees there is one that i love particularly.
It's a nearly 3 years old pomelo SEEDLING.
It's growing steadily with a graceful shape (uncommonly not straight upright) a strong thorny trunk and a dense, thornless canopee.



I've the feeling that it might start to flower in just a couple of years.
Unfortunately the last months I didn't notice any new growth, it's like the plant stopped despite watering and fertilizing.
This is how they look some of the leaves now.
Are these the early symptoms of citrus greening?



Lorenzo

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Re: Is this citrus greening?
« Reply #1 on: April 17, 2017, 03:39:10 PM »
For me, it looks nutrient deficient.

Lory

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Re: Is this citrus greening?
« Reply #2 on: April 18, 2017, 04:09:33 AM »
How i wish you were right!  :)
what worried me is that the VEINS turned yellow first.
Veins are the source of life to the leaves so they should be the last ones turning yellow
I hope Millet will chime in and give his opinion.
Lorenzo

Millet

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Re: Is this citrus greening?
« Reply #3 on: April 18, 2017, 05:13:44 PM »
Not sure if your leaf symptoms are showing symptoms of greening.  Yellow veins is common in nitrogen deficiencies, but the balance of the leaves shown on your link are still very dark green, so at this point that rules out nitrogen deficiency.  Citrus greening symptoms normally show a more blotchy appearance.  Another greening symptom is what is normally called "corky veins".  I'm not sure what "corky veins" looks like, perhaps you can find that out on the Internet. 
« Last Edit: April 19, 2017, 09:52:35 AM by Millet »

Millet

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Re: Is this citrus greening?
« Reply #4 on: April 18, 2017, 05:24:16 PM »
Lory, the  link below shows many good pictures of Citrus Greening symptoms.  There is even one picture of what  "corky veins" look like..   

Lory

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Re: Is this citrus greening?
« Reply #5 on: April 18, 2017, 11:05:46 PM »
Thaks for your pelies.
Yes the veins are definitely "corky" and the yellowing patten i found on this website concerning a pomelo infected with HLB looks  identical  :(

http://idtools.org/id/citrus/diseases/factsheet.php?name=Huanglongbing+(HLB)

I'm so upset now I can't believe yet you can lose a whole tree just because of a little pest  bite.....
Lorenzo

gozp

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Re: Is this citrus greening?
« Reply #6 on: April 19, 2017, 02:00:21 AM »
No worries Lory. I have a 21 year old kalamansi in the Philippines it was severely infected with Psylids..... kalamansi was never infected.... just hydrate ur tree....in fact, when im there i drench it with laundry soap (after doing the laundry)

Lory

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Re: Is this citrus greening?
« Reply #7 on: April 19, 2017, 05:04:15 AM »
Thanks for your ancouragement but you know what?
I lost a 8 years old kalamansi tree because of citrus greening.
It got infected 2 years ago, after a massive attack of citrus psyllid that i guiltily underestimated.
It all started with s single shoot, turning yellow and showing the typical blotchy chlorosis. Then  few leaves then a branch then several of them then it stopped flowering and produced only  small bitter useless  fruits.
The new buds were small and yellow, young leaves brittle and prone to fall down.
I decided to remove it last january. I couldn't stand to watch it dying day after day.
I replaced it with a young ponderosa lemon and now i'm much more careful about citrus psyllid!
Lorenzo

gozp

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Re: Is this citrus greening?
« Reply #8 on: April 19, 2017, 11:26:52 AM »
One more thing, kalamansi soil is always moist....everyday we water....and on habagat/ storms days we dont water...except leftover laundry soap (ariel powder) lol....


Lory

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Re: Is this citrus greening?
« Reply #9 on: April 19, 2017, 10:01:35 PM »
YES! Kalamansi trees are really though and very adaptable to any kind of soil. if they are watered enough they produce tons of fruits that's why i was so upset when i lost mine  :'(
Lorenzo

gozp

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Re: Is this citrus greening?
« Reply #10 on: April 20, 2017, 07:14:24 PM »
by the way, mulch your trees...

Lory

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Re: Is this citrus greening?
« Reply #11 on: April 21, 2017, 05:41:59 AM »
YES!!! It protects from the VERY HOT weather in this season and it's a huge help especially for the avocado. Thanks  :)
Lorenzo

 

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