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Early Blight

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Tomato

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Early Blight - Tomato

Tomato Tomato

J

Is this from magnesium or potassium deficiency? Or possibly a virus?

Fourth of July tomato plant. Leaves are pale with yellowing, brown spots, eventually an all brown leaf. All leaves, new and old, are looking like this. Tomato formation looks good.

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K

Are you growing in a greenhouse? Reminds me of blight. Not a nutrient issue.

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L

Yes, looks like "normal" tomato blight.

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T

Definitely blight

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A

What causes blight? How do you protect your tomatoes from it?

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K

Its caused by fungus. Usually happens during wet periods.

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K

Fungicides and prevent water from splashing from the ground onto the leaves.

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A

Best I have learned is to put mulch on top so the soil doesn't splash up when you water it since it lives in the soil. Is this correct?

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K

Yeah...pretty much. But, since it is outside and you don't have full control over the world around it...having a fungicide on hand and treating BEFOREHAND...is good to do especially in wet environments. An omri approved fungicide I LOVE is called actinovate. Check it out! Good safe stuff.

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S

Adam O You're quite correct 😊 Spores and mycelium become active in foggy wet weather. Early Blight, click on green link for more details.

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