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Magnesium deficiency

By Gardeners' World on 19/10/2011 13:47:01

-magnesium carbonate to the soil in autumn or winter to remedy the deficiency for next year.potatoes, apples, cherries, grape vines, tomatoes, camellias, rhododendronssummer, autumn, winterMore common plant problemsCanna virusRaspberry nutrient deficiencyHollyhock rust


Iris leaf spot

By Gardeners' World on 19/10/2011 13:40:21

A fungal disease weakens the plant and can seriously reduce its flowering performance. The brown spots eventually grow together and develop grey centres. Infection is caused by air or water-borne spores entering the plant through damaged leaves


Primula leaf spot

By Gardeners' World on 19/10/2011 13:57:14

.Promptly pick off and destroy affected leaves. If leaf spot is a persistent problem, try growing your primulas under glass.Spraying with myclobutanil may help give some control, although they're not specifically labelled as a solution for primula leaf spot


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