Cucumber Plants

Powdery Mildew


snowmanlover55@gmail.com added on July 25, 2017 | Answered

I have powdery mildew on my cucumber plants. I sprayed them with a solution of 9 parts water to one part hydrogen peroxide. I have removed most of the badly damaged leaves. How do I know if it is working? Will the mildew disappear? One source says to spray daily and another says weekly...which is it? Thanks for any help.


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snowmanlover55@gmail.com
Answered on July 26, 2017

There are several websites that discuss using hydrogen peroxide as a cure for powdery mildew on cucumbers. I am hesitant about using the milk remedy because I wonder if it will leave the smell of milk or possibly spoiled milk around my balcony garden. Plus apparently there are many benefits to using hydrogen peroxide in a garden. Thank you for the info.

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MichiganDot
Answered on July 26, 2017
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MichiganDot
Answered on July 26, 2017

TIL: hydrogen peroxide for mildew. I don't see how it can work. You are dealing with a fungus. Most homemade remedies include baking soda or milk. If the plant it badly infected, throw it in the trash, not the compost. Here is a link to one source that discusses how to prevent powdery mildew in cukes and gives homemade recipes. I don't know if there is any scientific basis for them or any study proving efficacy. (Actually, I doubt that there is but it's worth a try.)

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