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Magnesium deficiency
Potato Magnesium Deficiency.jpg
A potato leaf showing magnesium deficiency

Magnesium deficiency is a common and serious disorder which is made worse, not better, by standard feeding.

Identifying Features[]

Discolouration begins on lower leaves and moves upwards until all foliage is affected. Yellow areas may turn brown.

Treatment[]

Spray with Epsom salts (½oz/pint) or use a foliar spray containing magnesium.

Prevention[]

Use a fertilizer which contains magnesium (Mg).

Examples[]

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