Dark Damaged Area At Stem End - Knowledgebase Question

Name: Ellen Kelley
Gibsonia, PA
Avatar for ke11eyem
Question by ke11eyem
August 13, 2000
My tomatos have a dark rotten area at the stem end of the fruit. they seemed to develop well until we had a storm. I have three different types of plants so I don't think it is caused by type. I have never seen blight, could this be it.I did use mushroom manure this year.

Answer from NGA
August 13, 2000
Rotting (other than at the blossom end) can be caused by a number of factors, several of them made worse by wet humid weather. Some possible causes would be bacterial spot, anthracnose, late blight and botrytis. You might also find a pest such as ear worms tunneling through the tomatoes with the rot setting in on the damged portions. You might want to take a sample (along with any foliage showing unusual signs) to your county extension (350-2540) for a more specific identification of the problem and suggested remedies. I'm sorry I can't bemore sepcific.

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