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

I just last night checked the cuttings of scented geraniums 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 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

"Father Haskell" wrote in message
...
How stable are the ingredients NAA and thiram once the
packet (single dose envelope) is opened (and sealed
after each use)?

On Tue, 2 Sep 2008 20:33:09 -0700 (PDT), Father Haskell
wrote:

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.

On Sep 3, 2:01*pm, Phisherman wrote:
On Tue, 2 Sep 2008 20:33:09 -0700 (PDT), Father Haskell

wrote:
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?

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

wrote:
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/_Article...urnalCode =EM

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

Frank

On Sep 4, 6:51*pm, Frank frankdotlogullo@comcastperiodnet wrote:

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

Had some cuttings die from damping off after using a 5-months
opened packet, suspected maybe the thiram had degraded.
Odd, since I can't remember having this problem despite
striking hundreds of cuttings over better than ten years.