Posted: 25/06/2013 at 19:09
Five out of six of my greenhouse tomatoes have done the something similar. Only the young leaves are severely wilted, dark green and stunted. The ones I planted in the garden at the same time are fine. The greenhouse does not overheat as it's in partial shade.
Although the growing tip and damaged leaves show no sign of recovery I am training a side shoot to take over the job and I've earthed up the stem to encourage new roots.