Posted: 24/11/2011 at 15:29
My hollyhocks have had rust for 3 years now. I've always put it doiwn to the same rust as my apple tree and hawthorn hedge suffer with.Obviously not! I pulled all the infected leaves from the hollyhocks and burnt them. As soon as I saw the leaves starting with rust I removed the the infected ones and sprayed each p[lant thoroughly with a specific fungus killer.
Even the self seeded youngsters have the rust...so have been sprayed as well... and all will be sprayed regularly.