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 oilBaking soda makes an inexpensive control for powdery mildew on plants. The baking soda fungicide is mostly effective as a preventative, offering only minimal benefits after your plants have become infected. Weekly spraying of susceptible plants during humid or damp weather can greatly reduce the incidence of powdery mildew in your garden.
To control
powdery mildew on plants, mix together:
- 1 tablespoon of baking soda
- ½ teaspoon of liquid soap
- 1 gallon of water
Do not store unused mixture. While this recipe has been known to be effective, it can burn the leaves of some plants. It is recommended that you water your infected plants well a couple of days before applying this mixture, and dont apply it in full sun.
Try on a small area first, to test the plants response before spraying the entire plant. Some recipes also recommend applying 1 tablespoon of ultralight horticultural oil to the mixture. The oil coats and smothers the fungi. The soap is added to help the mix spread and cling to the leaf surface. Be sure to apply to lower leaf surfaces as well.
, 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.
