Cedar apple rust is a fungal disease and it is most destructive for eastern red cedar, juniper, apple, crabapple, hawthorn, serviceberry, and other Cupressaceae and Rosaceae family plants.
The cedar-apple rust disease causes serious damage to the plants if you take any actions to get rid of it and you know spraying fungicide is the best rust treatment.
But what is the best fungicide for cedar-apple rust?
In short, the organic or inorganic type of fungicide that contains copper, captain, myclobutanil, Bacillus subtilis, chlorothalonil, or mancozeb as an active ingredient.
For your convenience, Here I listed and reviewed the best fungicide for cedar apple rust.