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.
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.
Sorry, I forgot to include the link; http://www.veggiegardener.com/preventing-powdery-mildew-on-cucumbers-squash-melons/
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.)