Powdery Mildew Solution for
Lilacs, Phlox, Zinnias, Dahlias and Roses
1 gallon water
3 tablespoons baking soda
1 tablespoon Murphy's Oil Soap
Mix well, put in
spray bottle, and spray the plant
when you see the first sign of Powdery Mildew - a
grayish coating on
the leaves. Spray both sides
of leaves every 7 to 10 days until daytime temperatures start reaching
into the 70's.
With plants with chronic Powdery Mildew, spray
as a preventative once or twice in early Spring before
any signs of the disease occurs. Make sure the plant
is not stressed by drought, overcrowding or
other problems.