2. Milk. Numerous studies have shown milk and/or whey to be even more effective at killing powdery mildew than chemical fungicides.
How do you treat powdery mildew with milk?
Instructions
- Fill a Spray Bottle. Most experts advise using a mixture with a 40/60 ratio of milk to water. ...
- Spray the Plants. Spray the milk solution onto the plants, lightly coating all surfaces. ...
- Repeat. Reapply the milk treatment every 10 to 14 days.
Is milk a good fungicide?
Milk is a very effective fungicide in the garden, indeed often better than many chemical fungicides at controlling powdery mildew. Milk has been used for food, for paint and even for luxury milk baths.