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).