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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.
Witches' broom is a symptom of several rust fungal diseases, viral diseases and infestation of Eriophyid 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.
Organic control of common garden problems and diseases like moss, lichen, powdery mildew and rust.
Horticultural oil that protects your plants from a range of insect pests and diseases.