Rose leaf spot
We recently moved into a home with some beautiful roses. I would like to cut the roses and bring them inside for flower arrangements. However, the tea roses have leaf spot. Is there an environmentally-friendly treatment for this? Are there precautions to take when cutting or pruning the roses in order to avoid spreading the condition from one plant to another?
Marion County Oregon
Thank you, Jean! Attached are three photos of the rose bush, which gets full morning sun and afternoon shade.
- Keep leaves as dry as possible. Avoid overhead watering.
- Ensure good air circulation. (Unfortunately, a site adjacent to a house or fence limits air circulation.)
- Sun exposure for at least 6 hours a day, more is better.
- Remove and destroy infected plant parts.
- Consider replacing the roses with a ore resistant kind but, at the same time, know that all roses will have black spot to some degree.
Thank you very much, Jean! We will shop for some more resistant varieties, but we will also trim and spray the ones we have.