I've seen that with certain varieties. Worst I can remember was Prudens Purple. Look up sublethal sunscald, which is a likely culprit. I've seen it a few times in tomatoes that were subjected to plus 90 degree temps and bright sunshine for 3-4 days right after being set out.
One question Linda, in your avatar, did the yellow part turn red or stay yellow and hard? If so, that is sublethal sunscald.
|