Q.White Powdery Mildew
What are the ratios for the peroxide homemade solution used for treating white powdery mildew?

Nikki
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on November 22, 2010
Straight 3% peroxide can be diluted 1 to 1 with water (1 part peroxide to 1 part water). In addition, a weekly spray of milk at a concentration of 1 part milk to 9 parts water may significantly reduce the severity of powdery mildew infections.
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