I've noticed a white powdery mould on lots of the leaves of different plants in my garden. Could anyone help identify if this is a problem i need to be treating?
Mildew often comes from under-watering. I get this on sweet peas and honeysuckle when I need to pull my finger out and give them more attention. It can be a sign of plant stress. Sometimes it just happens. Try avoid getting water on the leaves and give plenty of ventilation, if that is an issue.
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