How do you stop leaves off roses getting rusty type leaves
Rust is a fungus and a fungicide is needed to control it. I like an earth friendly one called Green Cure. You can get it on line at Planet Natural or at amazon.com. Mix it at the Cure Rate on the label and spray it on the bushes every 5 to 7 days at the cure rate for five spraying intervals. Then you should be able to apply it once every three to four weeks at the cure rate to keep the foliage nice.