Re: [Aroid-l] Hot Water Treatment for Nematodes in Amorphs

Allan,

To avoid the need for accuracy is another reason why I wanted to find out how high a temperature Amorph tubers can take. If they can take much higher temps, then I won't have to worry about putting up a good setup. Aside from that, one source says that at higher temps, shorter treatments are enough for the same efficacy so much so that at 60 degrees centigrade, only 3 minutes is needed, which will be so much more convenient.

Bernhard,

Thanks for the info. That's a wake up call that I should consider size.

George
Metro-Manila
Philippines

At 3/29/2007 11:30 PM, you wrote:

Any idea how you accomplish such a task with accuracy?  I've no idea about equipment.
 
Thanks,
Allan

"StroWi@t-online.de" <StroWi@t-online.de> wrote:
Dear George,

a standard treatment to cure dormant Hippeastrum bulbs from mites
(Steonotarsonemus laticeps) and a fungus (Stagonospora curtisii) is 46
°C for 2 hours; since Hippeastrum bulbs can be quite big in diameter it
might match Amorphophallus.

Good luck,
Bernhard.


-----Original Message-----
> Date: Tue, 27 Mar 2007 07:22:08 +0200
> Subject: [Aroid-l] Hot Water Treatment for Nematodes in Amorphs
> From: George Yao
> To: Discussion of aroids

> Hello everyone,
>
> My Amoph collection was hit by nematodes last year and I tried
> Furadan with mixed success, so I am now going to try using hot water
> treatment. In my research on the Internet, dipping tubers in 50
> degrees Centigrade hot water for 15 minutes was effective for many
> nematodes, but shorter times at higher temps could also be used if the
> plant material can withstand higher temps. It will of course be more
> convenient using the latter, however, will Amorph tubers be able to
> survive higher temps? If so, till how high?
>
> I will appreciate hearing from people who have tried using hot water
> treatment.
>
> George Yao
> Metro-Manila
> Philippines
>
>
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