On Wed, 13 Apr 2005 07:10:29 -0700, Susan Erickson wrote
(in article ):


Tom, is the yellowing section of the plant still supported by
roots? Are these back bulbs? It sounds like a touch too much
light for the food/water mix. You can push the light and get
quite yellow/green leaves on lots of things. Also if this is the
first season in these conditions could they still be adjusting to
your place?
I sold Brassia's at one society meeting. I was doing well until
the under lights girls set up next to me selling Brassia
seedlings. Theirs were quite a rich green, mine were lime green
and the difference gave the effect that mine were sick. Actually
they were bigger and more robust.
SuE
http://orchids.legolas.org/gallery/albums.php

Thanks for the response, Sue. I have a Brassidium, a Brassada
and a Belleara which are doing quite well, and probably darker green than
they should be, but two Miltassias and a Gower Ramsey which are yellowing.
The oldest back bulbs are affected, and the outermost leaves, though the new
growths coming up betwen the outer leaves and the PBs are quite green. I have
all of the yellowing ones in a relatively shady part of the GH.

Tom
Walnut Creek, CA
Nikon CP5700, D70