Black Spots on Roses? Combine a teaspoon of dish soap with 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.
blackspot remedies, a spray composed of one part milk and two parts water is the best answer to the disease. This simple solution, if applied weekly, will control blackspot as well as any synthetic fungicide, including Chlorotalonil.
Got Blackspot? Get Milk. According to author and horticultural professor Jeff Gillman, who has conducted extensive research on blackspot remedies, a spray composed of one part milk and two parts water is the best answer to the disease.
Get rid of that black spot fungus on your rose bushes with this homemade kitchen mix! cup skim milk to 1 gallon water. Or cup baking soda to water. Pour over rose bush and remove leaves with black spots.
Black Spot On Roses: What To Do And How to Prevent It