Blight is a symptom caused by fungal and bacterial diseases that infect plants. Shoots and leaves quickly brown off and die.

Identify the problem Identify the problem

Blight is a symptom of diseases caused by fungi and bacteria. The symptoms include browning off and dying of shoots, leaving withered leaves, flowers and fruits. Diseases include, apple fire blight, needle blight of pine trees, potato blight and grass late blight.


  1. Prune out infected shoots.
  2. Organic - Apply Organic Super Sulphur which is suitable for use on vegetables, fruit trees, ornamentals and roses and has no withholding period.
  3. For shrubs and ornamentals use PLANThealth Spectrum.
  4. Avoid excessive use of fertilisers which are high in nitrogen as it helps spread the infection.

Did You Know Did You Know

  • There are many fungi that cause blight diseases. Among the most notorious are the phytophthora diseases that cause the potato blight and kauri dieback. The potato blight destroyed the potato crops in Ireland triggering the famine. Kauri dieback is killing the iconic Kauri trees of New Zealand.

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Solutions for you...

Plant Health Copper Fungicide Liquid

Plant Health Copper Fungicide Liquid

Fungicide and Bactericide. For control of a wide range of fungal and bacterial diseases on fruits, vegetables an...

Organic Super Sulphur

Organic Super Sulphur

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


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