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Mildew treatment that actually works?

Sazz101Sazz101 Posts: 248
in Problem solving
Hello! Last year I tried potassium bicarbonate, mouthwash, milk and detergent in various combinations with no luck. It hit dahlias, cucumbers and courgettes hard despite me being careful with watering. This year it’s kicking off early. Already on my dahlias and I think it’s killing my tomato, cucumber and salvia seedlings. 

Does anything work?

Posts

  • OmoriOmori Posts: 1,674
    edited May 2020
    Sulphur will treat powdery mildew but it does leave persistent white blotches. 
  • Sazz101Sazz101 Posts: 248
    Thanks Omori. I have some sulphur so will give it a go! 
  • foxwalesfoxwales Posts: 69
    Milk and water, but make sure it is a warm/hot day when using this so the proteins dry on the leaf surface
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