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This is a discussion on Seedlings showing strange symptoms! within the Orchid Ailments / The Compost Pile forums, part of the Orchid Culture category; This is my first time growing seedlings from flask. They are Den harveyanum seedlings that ...
This is my first time growing seedlings from flask. They are Den harveyanum seedlings that were just deflasked. I got them already deflasked, and they were perfectly healthy with perfect leaves and roots when I got them. I potted them up in sphag last night, 3-4 plants to a pot, and placed the pots in ziploc bags with the tops slightly open. I also sprayed with diluted physan.
Now, 24 hours later, I notice some of the leaves have gone bad! Some of the leaves look watery, as if they're bruised, while others are pitted/sunken, and some of the pitted areas have turned dark. I cut off all the bad portions and dabbed with cinnamon.
The watery bruising reminds me of erwinia or soft rot...what do you think? I made sure to disinfect everything and keep everything clean though. The sunken pitting reminds of mesophyll cell collapse due to cold damage...but the seedlings have not been cold and I have them on a heat mat (65F room temp + 10-15F extra heat).
Should I use stronger fungicides?
Last edited by orchidaddict789; February 1st, 2013 at 09:49 PM.