Hi folks. Can you help me figure out what's wrong with my tomato plants?? Three of the four have these problems. They're planted in separate, very deep containers. Symptoms:
* On older leaves: Brown edges bleeding into yellow.
* Stems turning yellow and falling off.
* Young leaves are small and weak.
* Plant is growing very slowly.
* Some of the flowers are shriveling and turning brown.
* The ripening tomatoes have yellow tops.
I've attached a picture of one of the leaves. Please help. This is driving me nuts.
