septoria leaf spot on tomato plants - Knowledgebase Question

Huntsville, Al
Question by rnhoskins
June 7, 2010
I have identified a condition on my tomato plant, called septoria leaf spot. How can I control it?

Answer from NGA
June 7, 2010


The symptoms of septoria are similar to those of early blight so a positive diagnosis is really necessary. Take an affected plant or at least some affected foliage to your cooperative extension office so they can put it under a microscope and positively identify the problem. If you're convince the problem is septoria leaf spot, most fungicides registered for use on tomatoes will control it. These include maneb, mancozeb, chlorothalonil, and benomyl. Be sure to follow label directions.

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