Thread: rot rot rot
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Old 29-03-2006, 02:00 AM posted to rec.gardens.orchids
V_coerulea
 
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Default rot rot rot

Why do you say "besides Physan"? What you mentionned trying is at least as
toxic as Physan. Physan is a quartenary ammonium compound closely related to
the same stuff people put in their pools as an
algacide/bactericide/fungicide. I've had better success with Physan than
with anything else. Cut out the infection and soak the rest for 15 min in 1
tsp/gal. I've recovered catts, paphs and a phal from certain death. The
stuff is a lot milder than bleach, peroxide or copper and I think works
better. Hope this helps.
Gary

wrote in message
oups.com...
gah! rot below the medium. grrr. done the H2O2 thing; done the
cinnamon thing; lost two plants (one a seedling that i thought was
getting better, and the phal bellina from [insert name of large east
coast orchid grower which shall remain nameless--no one on here] that
started it all); now my Br. Lancer clone has it. did the H2O2 thing
and cut away the bad parts and cut the spikes off and sprayed with a
copper fungicide (all i had)--and now i'm paranoid the whole
collection's got it.

besides physan 20, what could i use as a prophylactic spray/drench on
the rest? these plants are in my living room so i don't want to go too
toxic; fan on them for 8 hrs a day; the rest of the time the heat
pump's running with two vents directly below the plants.

AND my african violets have powdery mildew. i think i'm just going to
switch to cut flowers.


--j_a, cross and grumpy