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Seedlings showing strange symptoms!

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 ...

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    orchidaddict789's Avatar
    orchidaddict789 is offline Senior Member
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    Default Seedlings showing strange symptoms!

    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 10:49 PM.

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