Peter Dowdall: Here is how to control blackspot on your roses 

Whether you're a gardening beginner or expert, Irish Examiner columnist Peter Dowdall has the answer to your questions

There are thousands of rose varieties to choose from when selecting for your own garden. Picture: iStock

I have been inundated with questions recently about how best to control blackspot on roses.

As with most plant problems, it’s always good to understand a bit about the disease before we try and treat it.