Re: IGSROBIN Digest - 16 Jul 2002 to 17 Jul 2002 (#2002-88)

Hi Cynthia- thanks for the info on the Regals- I have an air-conditioned
room that I will move the oldest one too - I never would have guessed they
needed a cold treatment -

Laurie


Hi Cindi- I am only familiar with rusts that affect trees and junipers -
those usually have two hosts such as Hawthorne/Juniper and the rust needs
both hosts to survive (one spore stage on each host).  I did look up rusts
in general though and my reference says that "they can attack and survive
only on living tissue" and that most rust fungi have fives stages of spore
forms- so my "guess" would be without a chemical treatment of the soil, the
spores are probably still there, even if in one stage that will develop into
another which will attack plants. It says the spores spread by air currents
and water spray- It does say that spores in plant residue (such as the soil)
remain viable for "long periods" - This is referencing Chrysanthemum white
rust which is "the only quarantinable rust on ornamentals", I don't know if
that's also zonal rust.- It mentions Ferbam as a treatment.

Laurie


----- Original Message -----
From: "Automatic digest processor" <LISTSERV@MAELSTROM.STJOHNS.EDU>
> ------------------------------
> ------------------------------
>
> Date:    Wed, 17 Jul 2002 19:33:08 EDT
> From:    Cynthia Pardoe <RegalArt@AOL.COM>
> Subject: Re: Regals and x domesticum
>
> Laurie,
>     Your plants are old enough to flower. The problem here is that, you
need
> a consistent cooling temperature of at least 50 degrees and can be as low
as
> 38 degrees for at least three weeks or longer in order to set bloom. There
> will be no blooms until this happens.
> Good Luck,
> Cynthia
> RegalArt@aol.com
>
> ------------------------------
>
> Date:    Wed, 17 Jul 2002 20:35:57 EDT
> From:    "Cynthia S. Lohry" <Hedgehug@AOL.COM>
> Subject: Re: Zonal rust
>
> Hi everyone,
>
> Does anyone know how long the organism that causes zonal rust remains
viable?
>  I took a zonal out of the ground that was infected, removed all the leaf
> debris, etc but am concerned spores are in the ground that would infect a
new
> zonal put into that area of the garden.
>
> Cindi
>
> ------------------------------
>
> End of IGSROBIN Digest - 16 Jul 2002 to 17 Jul 2002 (#2002-88)
> **************************************************************
>
>
Other Mailing lists | Author Index | Date Index | Subject Index | Thread Index