Q.Peroxide dilution
What dilution should I use for hydrogen peroxide treatment of powdery mildew?

Heather
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on June 14, 2011
You can use an undiluted 3% solution on plants. But, always when using homemade formulas, test it on small part of the plant to make sure that it is not overly sensitive to the mixture.
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