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fallen leaves. When pruning, cut out any stems with blackspot on. In late-winter, spread a thick layer of mulch around the base of the affected plant to prevent rain splashing soil-borne spores on to new spring growth. Grow rose varieties

that are often found when plants are grown near or against a wall.Leaves and buds on roses, possibly even stems and thorns, are covered by a dusting of white powder.Prune out and bin (don't compost) infected leaves or stems. When buying roses, choose varieties

causing the leaves to drop, is followed by black pustules on the leaves in late summer. By autumn it's almost inevitable that the leaves will drop off.Promptly prune out any infected stems and destroy them, along with any infected leaves. Grow roses