I have black spots on my roses. What should I do?
Black spot is a fungal disease common to roses. One solution is to replace your roses with one of the newer varieties resistant to black spot. Or consider using more disease-resistant shrub roses. You can minimize black spot's impact by applying a fungicide weekly at the first sign of the disease. Select a product labeled specifically for use on roses. In fall, rake and destroy the fallen rosebush leaves. Reduce the source of the disease for the next season by picking off infected leaves before applying winter protection.