We decided to try a new type of tomato this year and grew San Marzano from seed. They did terrific for the first 6 weeks after transplanting, then one plant began to have yellow leaves. Within a week, it was completely dead. We thought we had an insect problem and dusted, but another plant began to yellow, then another until all of them were dying. We've checked and don't find any insect problems at all. The plants appear healthy up until the day before they begin to yellow. We've given them consistent water. We replaced the first plant that died with a store-bought grape tomato plant, and it's thriving. We live in South Central Kentucky (USA) and have always have great tomato production in the past. Any ideas?
Answers:
Unless you over fed or overwatered them they shouldn't fail so fast, unless there is a major insect infestation you have missed. If the the stems have been severed you have a cutworm problem. When that happens you usually can find the culprit about an inch or so down in the soil. If you do, show him Mr. Foot.
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