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CLUB ROOT  (Plasmodiophora brassicae)


DESCRIPTION
Club Root can be identified by stunted growth especially if infected as seedlings. Discoloured leaves which wilt. Roots are a thick distorted mass.

The symptoms are caused because the roots are unable to function in their normal way. The disease is a fungus within the soil, often introduced by seedlings bought in.

 


TREATMENT
The only treatment is prevention. Never grow brassicas (cabbage, cauliflower, Brussels Sprouts, turnip, kohlrabi) on the same soil in any three years. 

If the soil is acidic, reduce the acidity with a dressing of limestone the winter before planting. The Club Root fungus prefers acidic soil. Click here to view our article on soil acidity and how to correct it.

Normally club root is bought into a site on the roots of infected plants. For this reason it's best to grow your brassicas from seed.

Do NOT plant brassicas on the same infected site for five years.

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