Remedy for Roses with Mildew

An effective homemade remedy for powdery mildew uses baking soda as the main ingredient. At the first sign of the disease or as a preventative, you can apply this homemade remedy. Mix 1 tablespoon of baking soda to a gallon of water, add a squirt of lemon scented liquid dishwashing soap (Avoid detergents that may contain additives phototoxic to plant foliage).  Mix thoroughly. Pour into a spray bottle. Apply to the uninfected foliage and stems. This spray can be applied every three to five days. Repeat after a heavy rain or overhead irrigation. This is especially effective where shady conditions favor mildew.

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