Useful lifetime of an opened packet of Rootone F?
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Useful lifetime of an opened packet of Rootone F? Father Haskell 09-02-2008
Posted by Father Haskell on September 2, 2008, 11:33 pm
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How stable are the ingredients NAA and thiram once the
packet (single dose envelope) is opened (and sealed
after each use)?

Posted by Val on September 3, 2008, 12:20 pm
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I just last night checked the cuttings of scented geraniums (Geranium L.) (Geranium L.) I started using
a nine year old single dose packet of Rootone. They've taken off like gang
busters so I would assume it's still working. I very seldom use the stuff
but it's the only way I've been able to get geranium (Geranium L.) (Geranium L.) cuttings to root and
grow instead of rot/wither/die. I haven't done anything special to store the
original packet; just fold down the top, roll it up and secure with a rubber
band. I keep it in the pocket of my garden tool bag that I store in the
pantry closet.
Val

> How stable are the ingredients NAA and thiram once the
> packet (single dose envelope) is opened (and sealed
> after each use)?



Posted by Phisherman on September 3, 2008, 2:01 pm
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On Tue, 2 Sep 2008 20:33:09 -0700 (PDT), Father Haskell

>How stable are the ingredients NAA and thiram once the
>packet (single dose envelope) is opened (and sealed
>after each use)?


I still have my jar of Rotenone back from 1970. I have kept it clean
by putting a little of the powder onto paper, using that on the
cuttings, then discarding the paper. The directions say not to dip
cutting directly into the jar (makes sense). I have tested the
effectiveness using coleus cuttings and it is still good.

Posted by Father Haskell on September 3, 2008, 11:08 pm
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> On Tue, 2 Sep 2008 20:33:09 -0700 (PDT), Father Haskell
>
> >How stable are the ingredients NAA and thiram once the
> >packet (single dose envelope) is opened (and sealed
> >after each use)?
>
> I still have my jar of Rotenone back from 1970. =A0

http://en.wikipedia.org/wiki/Rotenone
http://www.youtube.com/watch?v=3D7DW40ygGwVQ

Slightly different chemical.

> I have kept it clean
> by putting a little of the powder onto paper, using that on the
> cuttings, then discarding the paper. The directions say not to dip
> cutting directly into the jar (makes sense). =A0

Spreads disease. Better just to waste 1/2 tsp than a tray
of the cuttings you thought were worth the effort to root.

> I have tested the
> effectiveness using coleus cuttings and it is still good.

Coleus is already fast. It rooted faster with Rootone?



Posted by Frank on September 4, 2008, 6:51 pm
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Father Haskell wrote:
>> On Tue, 2 Sep 2008 20:33:09 -0700 (PDT), Father Haskell
>>
>>> How stable are the ingredients NAA and thiram once the
>>> packet (single dose envelope) is opened (and sealed
>>> after each use)?
>> I still have my jar of Rotenone back from 1970.
>
> http://en.wikipedia.org/wiki/Rotenone
> http://www.youtube.com/watch?v=7DW40ygGwVQ
>
> Slightly different chemical.
>
>> I have kept it clean
>> by putting a little of the powder onto paper, using that on the
>> cuttings, then discarding the paper. The directions say not to dip
>> cutting directly into the jar (makes sense).
>
> Spreads disease. Better just to waste 1/2 tsp than a tray
> of the cuttings you thought were worth the effort to root.
>
>> I have tested the
>> effectiveness using coleus cuttings and it is still good.
>
> Coleus is already fast. It rooted faster with Rootone?
>
>
I've been using same bottle for maybe 30 years. I would anticipate that
the naphthalene acetic acid would be very stable but thiram would slowly
degrade particularly if wet:

http://www.rsc.org/delivery/_ArticleLinking/DisplayArticleForFree.cfm?doi=b304710e&JournalCode=EM

My stuff still appears to work. I just finished rooting a dozen
gardenias which to me has never been easy.

Frank


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