The comet was meant as a exaple of how this stuff can get in the air and
float around without realizing. I use Easy Off in a nearby oven, Greased
Lightning multipurpose (strong Sodium Hydroxide), 409, etc

You Never really notice these things until something like this is
mentioned...

"Steve" wrote in message
...
Yeah, but he said the plant in question is a Dendrobium. My problem spread
to and killed every Phal but I have never had a Dendrobium look anything
like those pictures.
Since I'm replying, all also add my thought that I don't believe there is
a chance in the world that the pictured problem came from any household
cleaner. I could see something splashing on a leaf and causing a few
scattered spots but the leaves in the picture are affected wall to wall.

Steve


Diana Kulaga wrote:
I believe it was Steve who lost his entire Phal collection over a couple
of years. No resolution as to what it was.

I have recently dealt with phythium. Lucky me. Very nasty disease, but
it didn't look like what Bruce (or Steve, for that matter) pictured.

Diana

"tenman" wrote in message
...

BruceM wrote:

Dendrobium, west facing window, 1 " faux blinds cracked about 1.5 inches
open. Plant about 6 inces from blind

Has that brown / red sand look like a spider mite infestation, but high
power magnification shows no mites, and it does not run or rinse off.
Close viewing looks like pitting of the leaves


http://home.tx.rr.com/lec/1.jpg
http://home.tx.rr.com/lec/2.jpg

There was a great deal of discussion at one time about this problem. I
don't believe it's from comet or anything else like it. It was called
'mocrofungus' by some, but neither pesticides nor fungicides worked on
it. Some guessed it was an as-yet unID'd virus. From all the postings I
read it seemd it was most often eventually fatal to the plants, but some
said they had plants eventually (2-4 years) grow out of it. There was
some speculation as to its contagiousness and most folks who had it on a
plant pitched the plant just in case.

I don't think there was ever a resolution to the issue, but it seemed to
affect a lot of collections.