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How often do I replace the soil in my greenhouse to prevent tomato blight?

💡 Our Advice

Tomato and potato blight are both air-borne fungal infections, so changing the soil will make little difference. In the greenhouse, consider using tomatoes, peppers or aubergines grafted on to resistant rootstocks to avoid soil-borne pests and diseases.

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Answered by

Steve Bradley M.A M.Hort RHS

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How often do I replace the soil in my greenhouse to prevent tomato blight?

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