Author Topic: My citrus collection [EU - Antwerp]  (Read 2624 times)

Peep

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Re: My citrus collection [EU - Antwerp]
« Reply #50 on: November 11, 2022, 02:53:01 PM »
Is anyone able tell me what these lumps on this young branch are? Could this be from gall wasp? I'm a bit concerned. Few weeks ago there was also resin coming out of different spots on this branch, the big bits I removed some weeks ago, but you can still see it a bit.






Peep

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Re: My citrus collection [EU - Antwerp]
« Reply #51 on: November 17, 2022, 12:55:40 PM »
Because I bought plants from Adavo, including Kabosu, and there are some rumours about the possibility of it having Tristeza, I have ordered test kits.

These are home kits, it works similar to how covid has detailed PCR tests and also simple positive / negative tests for home use.

Here is more information for who is interested: https://orders.agdia.com/agdia-immunostrip-for-ctv-isk-78900
To buy it in Europa you have to contact the European side of the company, located in France: https://www.agdia-emea.com/en/product/citrus-tristeza-virus-2

Email reply was quick, shipping as well, will arrive tomorrow. Pricing is €54 for 5 tests and €160 for a set of 25. Shipping to me in Belgium was €28 (FedEx), and with taxes the 5 test kit came to €98,40 including shipping.

Not really sure which plants I will test besides the Kabosu.

This is what I have from Adavo, so can't test them all. Suggestions for which varieties are at the highest risk are welcome.

- Hanayu (Hana Yuzu)
- Hana Yuzu (The "Sudachi" version which isn't Sudachi)
- Trifeola
- Kabosu
- Kishu-mikan           
- Hashimoto Satsuma
- Taiwanica / Nansho Daidai   
- Poncirus x C. unshiu
- C. unshiu x C. junos   
- YUZU N°1
- YUZU N°4
- Citrangeremo
- Glauca x Shekwasha   
- Ichang Papeda IVIA
- Citrus sinensis "GLORY MIČURINA"
- Triploïde Reale
 

BorisR

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Re: My citrus collection [EU - Antwerp]
« Reply #52 on: November 18, 2022, 08:04:36 AM »
Is anyone able tell me what these lumps on this young branch are?
Copper deficiency is possible.
« Last Edit: November 18, 2022, 08:06:35 AM by BorisR »

Peep

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Re: My citrus collection [EU - Antwerp]
« Reply #53 on: November 18, 2022, 12:14:05 PM »
Copper deficiency is possible.

From a quick google it seems that could be a possibility, big thanks for the tip!

I happen to have some copper sulphate on hand (the blue crystals), I'll try to find some information on the dosage and give it a go.   

Peep

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Re: My citrus collection [EU - Antwerp]
« Reply #54 on: November 22, 2022, 05:30:22 PM »
Today I have tested my Kabosu from Adavo for the Tristeza virus. Everything done with care. My result is negative. There is always a small chance that it is a false negative. My plant may not have enough virus or the test may not have been accurate. Or that other Kabosu plants from Adavo have it, but mine doesn't. I can't rule anything out completely, but I can share my experience and the result of my plant and test. It would still be interesting to see more people test theirs.

Here are the pictures:









« Last Edit: November 22, 2022, 05:32:28 PM by Peep »

BorisR

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Re: My citrus collection [EU - Antwerp]
« Reply #55 on: November 23, 2022, 06:06:05 AM »
And where did you get the test? Do you have a photo of the packaging?

Peep

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Re: My citrus collection [EU - Antwerp]
« Reply #56 on: November 23, 2022, 07:42:41 AM »
And where did you get the test? Do you have a photo of the packaging?

A few posts earlier I wrote about where you can buy it. What do you want to know from the packaging? The test strips are in an air tight tube shaped plastic container, put in a ziplock bag together with the sample extraction bags. This was put into the FedEx packaging.

Florian

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Re: My citrus collection [EU - Antwerp]
« Reply #57 on: November 23, 2022, 09:07:39 AM »
Unless proven otherwise, I will assume you did everything right and the test worked fine thus your Kabosu is free of Tristeza. I don't have it exactly because I was told by the French that it had Tristeza. Might just get it some time after all..

Peep

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Re: My citrus collection [EU - Antwerp]
« Reply #58 on: November 23, 2022, 10:06:41 AM »
Unless proven otherwise, I will assume you did everything right and the test worked fine thus your Kabosu is free of Tristeza. I don't have it exactly because I was told by the French that it had Tristeza. Might just get it some time after all..

I believe it is possible for my plant to have it, but not active enough for it to be tested. Some cultivars are more sensitive to it than others.
There seems to be an alternative, but slower, way of testing, where you graft a piece onto a cultivar that is sensitive to CTV. I'm educating myself on it more.

Quote
"The objective of biological indexing is to detect the presence of CTV in plant accessions or selections or in samples whose sanitary status is being assessed, and to estimate the aggressiveness of the isolate on Citrus aurantifolia (Mexican, key or Omani lime), C. macrophylla or Citrus paradisi Macfadyen (Duncan grapefruit) seedlings"
https://www.fao.org/3/cb4687en/cb4687en.pdf

Unfortunately I do not have any of these varieties, so I would first have to get seeds and grow them. Some people say Bitter Orange is also sensitive, although not as much as the others. I do have a bitter orange on carrizo rootstock that I do not need anymore, so I'm trying to find out if it's worth it to graft kabosu on it. Someone on Facebook also just told me that I can graft a sensitive plant onto kabosu for the same results. I do have Pomelo Enzo, which is a seedling of Duncan, if I'm not mistaken. So I could try that, but my Kabosu is small and I'm not sure it has a good spot to graft to unless I'm ruining the plant itself.
« Last Edit: November 23, 2022, 10:36:22 AM by Peep »

Ilya11

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Re: My citrus collection [EU - Antwerp]
« Reply #59 on: November 23, 2022, 10:16:11 AM »
I have Kabosu from the budwood that I got from Roberto. The leaves are less round and have some suspicious wrinkles.






Best regards,
                       Ilya

Peep

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Re: My citrus collection [EU - Antwerp]
« Reply #60 on: November 23, 2022, 10:49:47 AM »
I have Kabosu from the budwood that I got from Roberto. The leaves are less round and have some suspicious wrinkles.

From a quick google I do notice there are quite a few pictures where Kabosu leaves have some wrinkle to them.

I also noticed how round the leaves are. This is also on my Taiwanica from Adavo. They seem to be quite similar actually.

Is Roberto someone from this forum?

Ilya11

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Re: My citrus collection [EU - Antwerp]
« Reply #61 on: November 23, 2022, 11:40:32 AM »
Best regards,
                       Ilya

BorisR

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Re: My citrus collection [EU - Antwerp]
« Reply #62 on: November 23, 2022, 11:48:32 AM »
A few posts earlier I wrote about where you can buy it.
Thanks, I missed it.

 

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