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  Help!!!!
From: "Eduardo Goncalves" <edggon at hotmail.com> on 1999.07.14 at 15:07:41(3504)
Dear aroiders,

I need EXTRA-urgent help! As some of you already know, I am living in Sao
Paulo now, but my living collection is in Brasilia (more than 1000km far).I
use to check my dormant tubers once a month (seldom twice) to see if they
are up. They are usually kept in boxes in my closet, in my house in
Brasilia. For more than 4 years they are kept there and everything was
alright. This year I got some tubers in Brazilian Southern Amazonia
(Taccarum weddellianum, Dracontium ulei, some rare tuberous Xanthosoma, etc)
and placed them in the same place. Suddently, a white fungus started to grow
everywhere in my tubers. They are eating ALL my dormant plants, including
those very rare like Taccarum warmingii, Xanthosoma aff. eggersii, X.
platylobum, Asterostigma cryptostylum, A. lividum, Scaphispatha gracilis,
many morphospecies of Spathicarpa and many others. The fungus grows like a
white cotton, mainly in the top of the tubers. I am very affraid, because I
dont want to lose them. I have never used fungicides like captan before,
because Brasilia is very dry during the dormancy season and it never
happened before. Please, is there any way to solve this and SAVE my plants?
All suggestions are welcome! It is new to me and I really don't know
anything about it.

Best wishes,

Eduardo.

+More
From: Nosferatu Kennels <hermine at endangeredspecies.com> on 1999.07.14 at 21:57:50(3508)
At 05:07 PM 7/14/99 -0500, Eduardo Goncalves wrote:
>Dear aroiders,
>
> I need EXTRA-urgent help!

give them a bath in a ten percent bleach solution, and scrub off the fuzz.
put them someplace dry and put a fan blowing moving air across them. you
can do all this before you get into complex and odd solutions about which i
do not know. i have a small library of fungicides, but seldom use
them. remain calm.

+More
From: "Julius Boos" <ju-bo at email.msn.com> on 1999.07.14 at 22:04:07(3510)
>>Dear aroiders,

I need EXTRA-urgent help! As some of you already know, I am living in Sao
Paulo now, but my living collection is in Brasilia (more than 1000km far).I
use to check my dormant tubers once a month (seldom twice) to see if they
are up. They are usually kept in boxes in my closet, in my house in
Brasilia. For more than 4 years they are kept there and everything was
alright. This year I got some tubers in Brazilian Southern Amazonia
(Taccarum weddellianum, Dracontium ulei, some rare tuberous Xanthosoma, etc)
and placed them in the same place. Suddently, a white fungus started to grow
everywhere in my tubers. They are eating ALL my dormant plants, including
those very rare like Taccarum warmingii, Xanthosoma aff. eggersii, X.
platylobum, Asterostigma cryptostylum, A. lividum, Scaphispatha gracilis,
many morphospecies of Spathicarpa and many others. The fungus grows like a
white cotton, mainly in the top of the tubers. I am very affraid, because I
dont want to lose them. I have never used fungicides like captan before,
because Brasilia is very dry during the dormancy season and it never
happened before. Please, is there any way to solve this and SAVE my plants?
All suggestions are welcome! It is new to me and I really don't know
anything about it.

Best wishes,

Eduardo.
(a hopeless man from Brazil...)<

Dear Eduardo,
Sprinkle and spread Captan all over them right away! I have NEVER had any
bad effects with captan at ANY concentration, even in water and on
seedlings.
It should save your tubers IF it`s only a fungus!
Good luck,
Julius

+More
From: Jonathan Ertelt <jonathan.ertelt at vanderbilt.edu> on 1999.07.14 at 22:08:18(3511)
At 5:09 PM -0500 7/14/99, Eduardo Goncalves wrote:
>Dear aroiders,
>
> I need EXTRA-urgent help! Suddently, a white fungus started to grow
>everywhere in my tubers. They are eating ALL my dormant plants, The
>fungus grows like a
>white cotton, mainly in the top of the tubers. I am very affraid, because I
>dont want to lose them. I have never used fungicides like captan before,
>because Brasilia is very dry during the dormancy season and it never
>happened before. Please, is there any way to solve this and SAVE my plants?

Eduardo -

+More
From: Aroideae at aol.com on 1999.07.14 at 22:14:45(3513)
Dear Eduardo,

Since both are simple things, readily available, you might try a direct
application of hydrogen peroxide (I believe the retail 'grade' here is 3%)
followed by an application of cinnamon and/or powdered sulfur. A good dose
of direct UV from the sun wouldn't hurt either!!

Best,
Lynn

From: Douglas Ewing <dewing at u.washington.edu> on 1999.07.15 at 06:51:10(3515)
I am having success with liberal dustings of ground cinnamon on fungal
pathogens of many types. I trimed a rotten portion off of an Amorph. tuber
and applied the cinnamon- it stopped the rot right away. smells good too.
Doug

+More
From: Newton <Newton at coiinc.com> on 1999.07.16 at 11:51:15(3521)
Since I first heard about using cinnamon as a fungicide right here on our very
own aroid-l, I have used it EVERY fall by liberally dusting all the aroid
bulbs/tubers that I store for the winter. When I find one come out of the soil
with occasional rot, I cut or scrape off the rot and apply the cinnamon
directly to the flesh and that ends the problem. I have never lost a tuber to
rot after I applied this simple treatment.

Thanks, aroid-l!

Tim (newton) McNinch

+More
From: Douglas Ewing <dewing at u.washington.edu> on 1999.07.17 at 06:35:53(3524)
Eduardo, just a thought: when I re-read your description of this fungus,
it sounds a bit like mealybug. I have to constantly be on guard against
these insects, as they love the Amorph. tubers, particularly the emerging
leaf or bloom. I hope I am not offending, but have you looked closely,
even with a handlens, at that cottony substance?

+More
From: herself <hermine at endangeredspecies.com> on 1999.07.17 at 06:42:28(3525)
There is always flowers of sulfur if you have to do surgery on rot.

hermine

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