As for diseases, the best strategy is to start with disease-resistant cultivars. “Buy ‘fisherman roses,’” Pscheidt said. “The ...

Roses or other ornamental plants that catch black spot disease begin to drop leaves early and slowly become weaker as the ...

How to prevent black spot disease on roses Clean up leaves around your garden The best way to fight black spot disease is ... Louise said: “The disease is easily spread on the wind, and the fungus ...

As the warmer and sunnier days of spring arrive, gardeners should be alert to the rise in temperature that might encourage plant diseases such as black spot, a serious threat to roses ...