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Zuchini powdery mildew.

Home Forums FOOD PRODUCTION, HARVEST AND STORAGE Vegetables Zuchini powdery mildew.

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  • #241652
    elvinelvin
    Member

    My zuchinis have done really well and still producing, but with recent rain and humidity the leaves have got powdery mildew. Any recipes to treat it?

    I want to put the leaves in the compost bin, it’s my weedy compost so will sit for a long time. Any ideas??:|

    #320421
    EmbersEmbers
    Member

    I had powdery mildew (is it downy or powdery mildew? A lot of sites use the terms interchangeably) caused by too much moisture and humidity on my cucumbers, pumpkins and zucchinis and had a little success with milk spray. I mixed 1 part full cream cow’s milk to 4 parts water and let my 4-year-old go nuts spraying the top and underside of the leaves. In the end I still lost the cucumber (I think it got too much shade where I planted it), but my pumpkin and zucchini recovered.

    My friend also recommened sulphur powder as well, haven’t tried or heard about this though so can’t recommend it personally.

    I believe altering the pH on the leaf surface is what fixes the mildew, but would love to know more too.

    ETA: There’s an info page here about it, they say don’t put it in your compost.

    #320422
    WazzaWazza
    Member

    Bi-carbonate of soda is also effective. Add 7 teaspoons (20 grams) bicarbonate of soda to a bucket of water and sufficient detergent to make a rich lather. Stir the mixture to dissolve the bicarbonate of soda powder. Spray both sides of the affected leaves.

    #320423

    Our Zucchinis were very badly affected but are now recovering with the arrival of a dozen or so of those yellow and black ladybirds that eat mildew. Marvellous little critters, and quite beautiful with it.

    #320424
    elvinelvin
    Member

    I noticed some yellow and black ladybirds. Maybe I will just take off the worst leaves and compost them. I’ll give the critters a chance to do their job. 🙂

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