Start spraying the plant as soon as the leaves are half open with Multirose Q4 Concentrate from Bayer or RoseClear Ultra from Scott's. Make sure you also spray the support structure as many spores survive in the cracks and crevices in walls, fences and pergolas.
Gardening Expert: |
If you can't find what you are looking for on the website then you can ask one of our experts. To get in touch with us Click Here
We will try to get back to you with an answer as soon as we can.
Did you find this answer useful? Subscribe to our newsletter for gardeing news, projects, special offers and competitions.
Majorelle Garden
Marrakesh, Morocco
Singapore Botanic Gardens
Singapore
The New York Botanical Garden
New York, United States
Powerscourt Gardens
Enniskerry, Co. Wicklow, Ireland
Saint Petersburg Botanical Garden
Saint Petersburg, Russia
Desert Botanical Garden
Phoenix, Arizona, USA