virus

[Nova Garside]

Wim,

I am not sure if Arisaemas are affected by this, but could it possibly
be chlorosis? Sometimes this is caused (in other plants) by high soil
pH and lack of nutrients. The leaves begin to yellow as a consequence
of lack of iron(most common) or manganese or zinc. There is an
informative article about the condition at the link below:

http://www.urbanext.uiuc.edu/focus/chlorosis.html

If you suspect it is a nutrient deficiency, you might try a foliar
feeding with a (spray) diluted fertilizer or mineral solution.

It's just a guess, hope this helps.

:) Nova

On Sun, Jun 29, 2008 at 11:42 AM, Wim Boens <Wim.Boens at skynet.be> wrote:
>
> It is not rust, no signs of the typical rust-symptoms...
> Some of them are mottled (yellow-green) and one of them has a discoloration like Giorgio's plant.
>
> Could it be that they have a shortage in nutrients?
>
> Wim
> From: studio pozzi taubert
> Sent: Sunday, June 29, 2008 2:14 PM
> To: ARISAEMA-L at NIC.SURFNET.NL
> Subject: Re: virus
> Yes they may show virus discoloration.
> I have some Candidissimum  in a flowerbed near home, two years ago one plant
> was showing a leaflet of different colour: pale green, the shape of that area
> made me think it was a virus, it was the first time after two years  from planting I saw
> the large spots, the plant was healthy  ;  the same plants didn't show any virus attack on 2007 and this year ,
> I hope that tuber didn't die.
> Here you can see the plant
> http://www.pacificbulbsociety.org/pbswiki/files/Arisaema/Arisaema_candidissimum_june_gp.jpg
> Giorgio
>
> Il giorno 29/giu/08, alle ore 11:23, Wim Boens ha scritto:
>
> Hello
>
> Are Arisaema's succeptible to virusses? I have some A. candidissimums that have yellow mottled leaves? They look strong and are growing good and flowering...
>
> Wim
> ======================================================================
> Search the Arisaema-L archives & subscription options -
> http://listserv.surfnet.nl/archives/Arisaema-l.html
>
> Arisaema-L HOME & GALLERY: http://florapix.nl/Arisaema-L
>
> For help with this list, send an e-mail to the listowners at:
> Arisaema-L-request at nic.surfnet.nl
> ======================================================================
>
> Giorgio Pozzi
> Tavedona (Varese)
> Italy zone 7/8
> studio.pozzitaubert at tiscali.it
>
>
>
> ======================================================================
> Search the Arisaema-L archives & subscription options -
> http://listserv.surfnet.nl/archives/Arisaema-l.html
>
> Arisaema-L HOME & GALLERY: http://florapix.nl/Arisaema-L
>
> For help with this list, send an e-mail to the listowners at:
> Arisaema-L-request at nic.surfnet.nl
> ======================================================================
>
> ________________________________
>
> No virus found in this incoming message.
> Checked by AVG.
> Version: 8.0.101 / Virus Database: 270.4.3/1524 - Release Date: 28/06/2008 19:42
> ======================================================================
> Search the Arisaema-L archives & subscription options -
> http://listserv.surfnet.nl/archives/Arisaema-l.html
>
> Arisaema-L HOME & GALLERY: http://florapix.nl/Arisaema-L
>
> For help with this list, send an e-mail to the listowners at:
> Arisaema-L-request at nic.surfnet.nl
> ======================================================================

======================================================================
Search the Arisaema-L archives & subscription options -
http://listserv.surfnet.nl/archives/Arisaema-l.html

Arisaema-L HOME & GALLERY: http://florapix.nl/Arisaema-L

For help with this list, send an e-mail to the listowners at:
Arisaema-L-request at nic.surfnet.nl
======================================================================