Knowledgebase

Tomato problem #880151

Asked August 04, 2024, 3:09 PM EDT

What is wrong with our San Marzano tomatoes? ~ not all have these dark spots inside, but many do ~ no indication on the outside that anything is wrong.

Winona County Minnesota

Expert Response

Anthracnose and blossom end rot are the two most common causes.  Blackmold is another possibility.  See the websites for details.
https://ask2.extension.org/kb/faq.php?id=806317
MaryKay, Master Gardener, Tree Care Advisor Replied August 08, 2024, 2:57 PM EDT

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