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remedy for powdery mildew

primrosecottageprimrosecottage Posts: 817
in Fruit & veg

Hi guysimage. 

I have the start of mildew on greenhouse cucumbers but not keen on using sprays.if I take off the affected leaves and make sure that I keep them misted should it be enough to halt the fungus?

Posts

  • primrosecottageprimrosecottage Posts: 817

    Oh!! I used bicarbonate of soda wash when the gooseberry s had mildew would it do or is it a different type of fungus? 

  • Rj22Rj22 Posts: 5
    Hi,

    I've recently had the same problem and used potassium bicarbonate spray on the leaves (I used 1 teaspoon to 1 litre mix). It did deal with the mildew but also left multiple paper patches on the leaves which I gather, from other posters in these forums, that it's probably where the mildew had done its damage.



    I will be giving the plant a pick me up and hope it manages to bounce back.



    Sorry it's not a definitive answer but hope it helps.
  • primrosecottageprimrosecottage Posts: 817

    Sorry if I don't really take in the advise but I have at least two  cucumbers ready to harvest and more on the way on each plant so a little worried about what I spray. Only one plant has the mildew the other three haven't. Is the potassium ok ?  even on the cucumbers I don't know how I could only target the leaves.

  • Rj22Rj22 Posts: 5
    I understand your concern. Edd, who posted above, will probably have a better idea about the potential effects on any fruit.
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