This looks similar to the problem which I have experienced with my seedlings previous years. I found out that led lights make it worse, since it is missing UV, so I use fluorescent tubes for tomatoes. Also I stopped watering the seedlings via the tray and watered moderately. This year I had no dropped leaves and most had the cotydelons on when I transplanted the plants to bigger pots.
Here is a link which has photo of seedlings, which are like the ones I had problems previous year s.
https://vegcropshotline.org/article/...to-rootstocks/
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Last edited by svalli; May 8, 2019 at 03:27 PM.
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