- remove all infected leaves
- if in doubt, cut off whole shoots close to the ground
- spray the infected mint with a mixture of 1 part milk and 9 parts water
- As a preventive measure, also spray all neighboring plants
A tea made from garlic has proven to be very effective for treating powdery mildew. Squeeze out a fresh clove of garlic and pour boiling water over it. Let it steep for an hour, strain and cool. Filled in a pressure sprayer, apply the solution to the diseased mint. Don't forget to wet the undersides of the leaves as well.
GTH
