HPBudlong wrote:
Does anyone know if Rhizopon rooting products and Hortus IBA Water
Soluble
Salts are compatable with organic gardening?
Helen

Auxins
The most frequently employed auxins are IAA, IBA, NAA and 2,4-D. IAA, a
naturally occurring auxin is added in concentration of 0.01-10 mg/l.
The synthetic and relatively more active auxins (IBA, NAA and 2,4-D)
are used at the concentration of 0.001-10 mg/l. Other auxins which may
be used in plant tissue culture include 2,4,5-T and 4-CPA. The most
effective auxin of callus proliferation for most cultures is 2,4-D, but
unfortunately it strongly suppresses organogenesis and should not be
used in experiments involving root and shoot initiation . Auxins
generally cause: cell elongation and swelling of tissues, cell division
(callus formation) and the formation of adventitious roots; the
inhibition of adventitious axillary shoot formation, and often
embryogenesis in suspension culture. With low auxin concentration,
adventitious root formation predominates, whereas with high auxin
concentration, root formation fails to occur and callus formation takes
place.

Because Rhizopan is a trademark and the active ingredient is IBA, I
would think it unlikely that either product would meet the criteria for
"organic" gardening.