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Potato blight - Tip for dealing with potato blight

Potato blight is a devastating disease that blackens the foliage of potato plants and causes the tubers to rot. It appears during the summer without warning, although always at times of warmth and high humidity. When this combination of conditions occurs, it is prudent to spray potatoes with Bordeaux Mixture, to arrest an attack. If dark brown patches start to appear on the foliage before spraying takes place, still apply the Bordeaux Mixture. Much of the crop can be saved, although it is unlikely that the potatoes will keep well.