Answer: It sounds like you already know what's happening to your seedlings. Too much water encourages a fungal disease called damping off. It spreads quickly through the flats killing the young seedling by causing the stems to rot. The sun and wind also stresses the young seedlings, especially if have are suddenly put outside after growing indoors their whole life. I'd cut back on watering and keep the seedling indoors until one week before you're ready to put them out premanently. Then gradually place the plants outside starting one hour the first day and increasing it each day until by the end of the week, they can stay outside al day long. Start by putting them in a partly shady area, out of the wind.
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