Franz Heymann wrote:

Mist propagation was mentioned in another thread quite recently. That
triggered me into asking something I have always wanted to know:

What does mist propagation do which cannot be done by inverting a
transparent container over the cutting?
I have always thought that the purpose of either action is simply to
maintain an atmosphere which is as nearly as possible fully saturated with
water vapour in order to minimise evaporation from the surfaces of the
leaves.


It's automated, air circulation is better , thus you have a more bouyant
atmostphere (which in turn 'should' reduce fungal risk to some degree).

A mist bench may be covered or uncovered. heated or unheated, though
ususally the former..

Its worth noting that misting, in Horticultural terms, is not quite the
same as fogging.

True fogging equipment, such as is used to fog large glass-houses is
quite expensive and very different from a low scale sand and mist bench
rooting bench, which can be anything from a DIY 'heath robinson' affair
to some very high tech systems.

//
Jim