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Seedling leaves discoloring and then dying
12 years ago

I am attempting to grow some vegetables and flowers from seed for the firs time. I survived some initial damping off problems by using chamomile tea. Yesterday I noticed that one of my cucumber seedlings had some discoloration on the seed leaves. When I woke up this morning, the leaves were all white & curled and the plant had almost died. Now I am noticing the same discoloration on other seedlings (petunias).

These seedlings are inside, receiving light via a windowsill (although I sometimes open the window so they get some direct sun) and I'm supplementing in the evenings with fluorescent lights. I used a starter potting mix.

Does anyone know what this is & how I could treat it to save the remaining plants?

I will attempt to upload some photos.


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