I don't know about the melons/squash/cukes? but the tomatoes can be. Hit them with a light fertilizing.

Mine got the exact same treatment once earlier. I put them in the ground a week later, and then a few were bit again under my buckets this past weekend. But they will recover.

Looks like most will make it. Hope for the best.

I did the same thing with similar results :( The main stalk of my plants are fine... hoping both yours and mine make a recovery!!

Thanks. I feel better! Aside from the tomatoes I the ones in the worst shape were the okra and the cucumbers. My eggplant was also not so hot, but not wilted. I brought them in already so hopefully no more damage.

They'll be fine, although it definitely was a setback. Take real good care of them for the rest of the way to get them going. Mine got zapped some last year after I put them out. Yours are very young though.