How to Prevent Botrytis

Botrytis is a fungal disease that impacts many plants in the garden, indoors, and in the greenhouse, if given half a chance. This article explains how to do your best to prevent it from getting a toehold in your garden.


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    Note the favored conditions of botrytis. Botrytis loves warm and damp or wet conditions. If it is hanging around, these conditions will cause it to thrive.
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    Check the airflow around your plants. One of the best ways to prevent the growth of botrytis is to ensure that air is flowing freely around plants.
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    Avoid watering plants in the evening.
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    Water plants direct at their base, on the soil, and not on their leaves.
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    Remove dead or old leaves from plants.
    • For example, dead or old leaves on tomato plants can harbour botrytis.
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    Compost or bury plant parts that you remove. Any part of a plant that has signs of a silver to grey mould should be treated as suspect and disposed of quickly to prevent further spread of the fungal disease.


  • It is possible to purchase commercial treatments for fungal disease. Always follow the instructions on the bottle.

Things You'll Need

  • Good airflow
  • Good watering methods
  • Compost or garbage bin for disposal of suspect pieces of plants

Article Info

Categories: Garden Pests and Weeds