Late summer always brings black spot to...

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Late summer always brings black spot to my roses. Any suggestions?
Try a homemade solution. Combine 1 tablespoon baking soda and 1 gallon water in a spray bottle. Spray the plants regularly, and always after a rainstorm, to keep them constantly coated with baking soda. To help with next year’s crop, be sure to rake up all your rose leaves in the fall and compost or dispose of them. Black spot likes to spend the winter on fallen leaves and then resurface the following spring.