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Black Sooty Mould on Sprouts

15
Jul, 2017
By Sally Osgerby
  • Blog,Brassicas,Pests & Diseases
  • No comments

Black sooty moulds are a problem disease on Brussels Sprouts.

Brussels Sprouts

Brussels Sprouts

 

  • The black sooty mould can be sticky and is the result of a whitefly attack.
  • Cabbage whitefly overwinters on brussel sprouts as adult insects.
  • Adult whitefly and their nymphs suck sap from the sprout plant and excrete a sugary substance (honeydew) onto the leaves.
  • Sooty moulds then grow on this sugary substance – and can make a real mess of the sprout buttons.
  • The warmer the weather the worse the problem is.
Brussels sprout row

Brussels sprout row

Black Sooty Mould is more of a problem in Brussels Sprouts after warm weather.

 

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