The Q&A Archives: Cherry Tomato Leaf Disease

Question: I grew your tumbler cherry tomato variety from seed and put it out on the deck in a container. Growth was good at first. It set fruit, then the leaves began to get dark spots on top, they yellowed and curled. Each stem so affected wilted. The fruit seems OK. Is this fusarium or a virus? New sprouts are coming up from the base. Should I chuck the whole thing or hang tough with my scissors? Your response is greatly appreciated.

Answer: What a shame! Since you're growing this determinate tomato variety in a container, the most likely culprit is early blight. The fungal spores blow in on the wind, so it's hard to escape their effects. You can try to keep the new growth from infection by spraying all surfaces with a copper-based fungicide. Remove the affected leaves only - leave as many as you can to keep pumping sugar into the fruit, and you should be able to harvest some! Best of luck!

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