As for diseases, the best strategy is to start with disease-resistant cultivars. “Buy ‘fisherman roses,’” Pscheidt said. “The types that you can plant and then go fishing. Breeders are always coming ...

Symptoms often start with small black and dark spots on the upper surface of the rose leaves. The spots often quickly grow and are surrounded by a yellow halo, ultimately leading the leaves to ...

Black spot is a severe fungal disease characterised by large, dark blotches on the leaves of infected rose plants. It thrives in warm, moist conditions, making it a common issue during the spring ...