Life Hack: How to treat blackspot on roses - and what you can do to prevent it

Keep your roses bright and beautiful - avoid blackspot with these tips.
Blackspot is caused by a fungus called diplocarpon rosae, which infects the leaves of roses, causing marks and greatly reducing the plant’s health. It develops easily in warm and damp conditions and the Irish climate provides this in abundance. The first signs of blackspot appear in from spring, so you may be noticing the telltale marks on your leaves around now.