Plant guide
Potatoes: problems & diagnosis
Solanum tuberosum
Potatoes are an allotment staple, and most of their leaf dramas — yellowing, black blotches, sudden collapse — come down to blight, watering, or natural die-back before harvest. Telling normal senescence from blight is the key skill.
3 potato diagnosis guides
Early Blight on Potatoes: UK Diagnosis, Symptoms and Fixes
Dark target-spot lesions on your potato leaves? This UK guide separates early blight (Alternaria) from the far more common magnesium deficiency and late blight.
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Potato black spots: what it means and what to do next
Potato black spots can mean harmless bruising, black scurf, blackheart, blight or storage rot. Use this UK diagnosis table to decide what to cut away, keep or discard.
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Yellow Leaves on Potato Plants: UK Causes and Fixes
Potato leaves turning yellow in the UK? Magnesium deficiency, late blight, waterlogging and natural senescence all cause yellowing. Diagnose here.
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