Ribbons Bows

what is wrong with my mini roses? they have black spots on the leaves?

Your roses have Diplocarpon rosae, commonly known as the spot black roses. D'oh! . Stop the aerial spraying or watering in the evening. Bayer All in One a granular product that you spread on the ground and is established in the foliage. It contains a fungicide to fix your problem black spot and rust, a pesticide to ward off common pests such as aphids, and fertilizers. It's less messy than powder, and easier to apply than sprays, too. I have a minor in plant pathology. .

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