Steve wrote:

Norma, I have had Paphs growing in with the diseased Phals since before
the Phal problem started. The Paphs are healthy and doing fine.
On the other hand, my Dendrobiums developed a spot disease about the
same time the Phals started and it doesn't seem to go away with
fungicides. It behaves quite a bit like the Phal disease.

An onc. (Sharry Baby) also has spots. Not the same kind of spots that
the phals have but close. Also has not flowered this year. I'm posting
a pic of it in the binary group the minute I finish posting here.

All my orchids are in the kitchen window, northwest exposure and they
have thrived there for years until recently. We had the window replaced
last year and that's the only difference in the environment. No more
bone-chilling drafts in January (we're in Canada). Wonder if this is
what has started the problem for some reason.

N.