Please check Oregon State University's Extension Toxicology Network report before applying this pesticide. It is highly toxic to all birds, insects, and mammals, where it attacks the testicles, liver, kidneys and spleen. It is a carcinogen, mutagen and teratogen. You can read a summary of carbaryl's effects here . But there is no efficacy data which suggests these alternatives may help curb the disease.
Mites frequently pass between plants by crawling or ballooning from one plant to another.
Consider interplanting your roses among other landscape ornamentals instead of grouping all of your roses into one area. Isolating new plants. Whenever purchasing a new plant from an unknown nursery, either directly or through the mail, consider potting it up in a container for a few months to determine if the plant is pest and disease free. The plant should be confined to an area away from other plants, especially if they are from the same genus. Neem oil, a proven, low toxicity botanical miticide, may be of some effectiveness against Phyllocoptes fructiphilus .