Will try this for my roses this year: A tonic for black spot and powdery mildew on roses Roses, while beautiful, are often plagued with black spot or powdery mildew. I mix these ingredients into a tonic, which I spray on my roses: 2 teaspoons of baking soda and 1/2 teaspoon of liquid soap or Murphy's oil soap in 2 quarts of water. The tonic protects the roses for months.
6 Tips for Growing Roses in a Cold Climate + Winter Care
Love roses? Winter snow, ice, and wind can be rough on rose vines and shrubs. With some simple precautions, you can keep your roses protected through the cold months and ready to bloom again when the warm weather returns. #sponsored
ROSE SPRAY-helps prevent diseases such as rust, blackspot, and powdery mildew. Mix together: •1-tablespoon baking soda •1-teaspoon mild dishwashing detergent •1-tablespoon vegetable oil •1 dissolved aspirin Add: •1-gallon water Mix together and pour into a spray bottles. Spray roses every 1-2 weeks.
Anti-Fungal Spray for Black Spot on Roses.Combine 1/2 a teaspoon of dish soap with 1/2 a teaspoon of vegetable oil in your spray bottle, and fill completely with water.Lightly shake, and then liberally spray this anti-fungal spray all over your roses, leaves, blooms and all.