5 Answers

I'd first try sprinkling with a mild soap and water solution, soak the infected parts. Soap is good for getting rid of pest (like grubs) and doesn't harm the plant. Simple solutions should start you out.......

11 years ago. Rating: 5
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Once Your Plants are Infected:

Remove and destroy all infected plant parts
Improve air circulation by thinning and pruning
Don’t fertilized until the problem is corrected. Powdery mildew favors young, succulent growth
Don’t water plants from above
Apply a fungicide: There are many fungicides available. Check the label to be sure they are safe and effective on the type of plant that is infected. Look for ingredients such as: potassium bicarbonate, neem oil, sulfur or copper. There are also chemical fungicides, such as triforine, that can be used on ornamental plants. There is also a home remedy made from baking soda that is effective.
Most fungicides will need repeat applications every 7 - 14 days, for continuous protection. Always follow the label instructions for both application and waiting period before harvest.>>>>http://gardening.about.com/od/gardenproblems/a/PowderyMildew.htm

11 years ago. Rating: 5
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For mild infestations of Powdery Mildew/Rust, dissolve 1 tablespoonful of Bicarbonate of Soda in 1 Gallon of Water and spray or use a watering can to soak the foliage. Repeat every other day.

11 years ago. Rating: 5
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Replace with plastic flowers.

11 years ago. Rating: 3
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All powdery mildew fungi require living plant tissue to grow. The important thing about this disease is all powdery mildew species can germinate and get infected in the absence of water, even though humidity requirements for germination vary.

https://lifeandagri.com/powdery-mildew/

3 years ago. Rating: 1
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