Home > Question >

How can I control blackspot on my rose bushes?

Our Advice:

Next spring, start spraying the plant as soon as the leaves are half open, with either Multirose Q4 or Systhane Fungus Fighter both from Bayer. It is important to get a protective layer of fungicide over the leaves before the disease is able to enter the plant.

Here are some related questions:

Not what you are looking for?

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.

Here is some more information for you:

Did you find this answer useful? Subscribe to our newsletter for gardeing news, projects, special offers and competitions.

Ask another gardening question:

Learn More About Pests and Diseases

Gardening Projects for March

---

How to: New orchids from old

How to plant a bare-root rose

How to plant through weed-suppressing membrane

How to grow Gladioli

Latest Gardening Videos

---

Five Essential Tips for Growing Lemons

How can I get rid of mushrooms growing in my lawn?

How to Grow Perennial Scabius

Moving House and Taking the Garden with You | Garden Ideas | Val Bradley

5 Essential Spring Bulb Tips in 1 minute

Why are my pansies and violas wilting?

All Videos

Explore Gardens from Around the World

Rikugien Gardens
Tokyo, Japan

Pamplemousses Botanical Garden
Pamplemousses, Mauritius

Ritsurin Garden
Takamatsu, Japan

RHS Harlow Carr
Harrogate, United Kingdom

Saint Petersburg Botanical Garden
Saint Petersburg, Russia

Gardens of the Generalife, Alhambra
Granada, Spain