Witches Broom

Witches' broom disease is a condition found in many shrubs and trees. The affected plants form dense tufts of stunted growth resembling a broom head. It is caused by a variety of fungi, viruses and mites.

Identify the problem Identify the problem

Witches' broom is a symptom of several rust fungal diseases, viral diseases and infestation of mites. It is seen on roses, kakabeak, kowhai, silver beech and many other plants. It is important to establish the cause of the witches' broom so that appropriate action can be taken.


Identify the cause of the condition.

  • Look for signs of mites. If insect or mite activity is found treat with Organic Super Spraying Oil.
  • Look for signs of fungal infection - rust like brown marks or spots on leaves or stems.
  • Carry out  a protective treatment of affected plants in winter using Organic Super Sulphur.

Did You Know Did You Know

  • Witches' broom is a symptom or condition which is a response by a plant to infection by a disease or infestation by a bug, usually a mite.

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Solutions for you...

Organic Super Sulphur

Organic Super Sulphur

Organic control of diseases - powdery mildew, blackspot and rust. Plus control of moss, lichen and mites.

Organic Super Spraying Oil

Organic Super Spraying Oil

Horticultural oil protects your plants from a range of insect pests, mites and diseases.


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