Was feeding the roses this morning, and much to my horror, I saw this on my Altissimo rose. I rushed off to the Co-op to get Sevin and spray down the roses so it didn't transfer. I went over to the museum and looked at the stormy weather and noticed that it had similar canes. Altissimo is a strange rose so before I condemn it to death, I need to identify if it is witches broom because I notice climbers will look like this and the red is new growth generally. Over the winter it almost looked black when it had new growth.
I found this publication on line. Click HERE I find that climbers look like this when they have new growth...so Is it witches broom?
