Table of Juniper, Hawthorn, and Crab Apple Resistant to Rust Diseases

 

Cedar-apple rust is a fungus disease of apple and cedar and spends parts of its life cycle on each host. It is caused by Gymnosporangium juniperi-virginianae. The fungus can infect leaves and fruit of most cultivars in the eastern region. This table lists juniper, hawthorn, and crab apple cultivars with resistance to rust diseases. 

Juniperus (Juniper) Crataegus (Hawthorn) Malus (Crab Apple)
Cedar-apple and hawthorn rust resistant Cedar hawthorn rust resistant Cedar hawthorn rust resistant
J. ashei C. crus-galli ‘Adams’