I heard about it. Cancer in roses looks like this:
A far as I know, the only way to treat it is to get rid of all sick stems.
Fortunately, my miniature roses are healthy, so I haven't tried this method out yet.
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.