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.
Great tip from the Urban Organic Gardener. Make your own homemade spray to get rid of aphids. Boil some water with onions, garlic and cayenne pepper, let it steep, then spray down the aphids and undersides of leaves.