Proactive actions can be taken such as choosing rust-resistant cultivars as well as applying copper fungicides to cedar plants between late August and late October. Fungicides can also be applied once to apple trees near bud break to prevent infection; however, once they exhibit signs of the fungus, there is not much that can be done to prevent them from infecting nearby cedars and continuing the cycle. A way to break this cycle to physically remove the rust galls using shears, before they have a chance to spread their spores in early spring.