Brown spots at the base

[Erythrone]

I don't believe either of those fungicides is bactericidal (if the brown is erwinia) so they wouldn't have prevented that particular rot

I am with cnycharles...

 

[Justin]

yeah once you stop the bleeding you need to look at culture change...

 

[iwillard]

I believe I can now say (guardedly!,I no longer see this dreaded erwinia creeping up in any of my orchids.

Between KleenGrow,Docket DF and control of fungal gnats which I suspect was the culprit, I may have just licked the my battle.

Thank you all for the suggestions,I wouldn't wish this on my enemy.

 

[abax]

Dear iwillard, I thought I had the rot problem whipped with
the Windy Hill China Dragon using H202 and Phyton 27.
Cleared up for a while, but is back on the same damn plant
on another mature growth. I've done the peroxide and
27 routine again, fired all my pruners, took it out of a
saucer long ago at Dot's suggestion and removed the
two leaves affected. I don't have fungus gnats. I only
water this plant about once a week and no other plants
are affected. I don't get what the problem might be. Do
I need to get out the hazmat suit????