ROSE SPRAY-helps prevent diseases such as rust, blackspot, and powdery mildew. Mix together: baking soda mild dishwashing detergent vegetable oil 1 dissolved aspirin Add: water Mix together and pour into a spray rose. Spray roses every weeks.
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.
Aspirin is a remedy for fungal plant problems (black spot, powdery mildew, and rust are a terrible trio of fungi). Dissolve two uncoated aspirin tablets milligrams each) in 1 quart of water and use as a foliar spray to thwart these diseases.
Aphids like to visit our plants and rose bushes every year and can form a major attack on them fairly quickly. Controlling aphids on roses is well worth the effort to keep beautiful roses. Learn more here.