As for diseases, the best strategy is to start with disease-resistant cultivars. “Buy ‘fisherman roses,’” Pscheidt said. “The ...
A common issue with roses is black spot and rust caused by fungal diseases ... such as making a homemade fungicide with milk and water in a spray bottle. As Sophie points out, good airflow ...
Black spot is a serious fungal disease named after the big dark splotches that can appear on rose leaves once the plant is infected. It can only thrive in warm, rainy conditions, so it tends to ...