Growing

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All Crops disease growing-guide summer tomatoes troubleshooting ventilation
Tomato plants in a humid timber greenhouse under overcast late-summer light

Tomato Blight: How to Spot It and Save Your Crop (UK)

— Waldenhaus
Tagged: disease growing-guide tomatoes troubleshooting
Greenhouse tomatoes catch blight far less often than outdoor ones, until a warm wet August lets it in. How to identify blight in 60 seconds, what to do the moment you find it, and the varieties that keep it out.