Cedar apple rust - Ask Extension
I have an 8 foot upright juniper in my yard and I noticed the other day right orange sap as well as dried areas that I’m pretty sure is Cedar apple ...
Knowledgebase
Cedar apple rust #868193
Asked May 13, 2024, 1:03 PM EDT
I have an 8 foot upright juniper in my yard and I noticed the other day right orange sap as well as dried areas that I’m pretty sure is Cedar apple rust. I also have apple trees as well as peach trees and apple espaliers in the backyard on my property and I’m concerned about this outbreak on the juniper. I asked the advice of our local garden center, and they suggested that I could use functional, but the best course of action is really to dig it out and get rid of it off the property. If I did, I would have to find an upright very narrow juniper that might not have the same issues with susceptibility to fungus. I would love to get your advice.
Medina County Ohio
Expert Response
https://www.missouribotanicalgarden.org/gardens-gardening/your-garden/help-for-the-home-gardener/advice-tips-resources/insects-pests-and-problems/diseases/rusts/cedar-quince-rust
https://ipm.missouri.edu/MEG/2018/9/cedarQuinceRust/
https://ag.umass.edu/landscape/fact-sheets/cedar-quince-rust
https://extension.illinois.edu/plant-problems/cedar-apple-rust
The specific disease you are dealing with is Cedar-Quince rust. The above websites provide some useful information on this disease and its management. While one method of controlling the disease involves the removal of one of the hosts (i.e. either the cedar or the apple family plant) another method involves pruning out the diseased branches and destroying them. Also, spraying with a fungicide which can control or prevent rust diseases (i.e. copper based) may reduce the spread of the disease and not require the complete removal of any plant. Ask your local garden center for help in selecting an appropriate fungicide and remember to follow the label for use of personal protective equipment.
https://ipm.missouri.edu/MEG/2018/9/cedarQuinceRust/
https://ag.umass.edu/landscape/fact-sheets/cedar-quince-rust
https://extension.illinois.edu/plant-problems/cedar-apple-rust
The specific disease you are dealing with is Cedar-Quince rust. The above websites provide some useful information on this disease and its management. While one method of controlling the disease involves the removal of one of the hosts (i.e. either the cedar or the apple family plant) another method involves pruning out the diseased branches and destroying them. Also, spraying with a fungicide which can control or prevent rust diseases (i.e. copper based) may reduce the spread of the disease and not require the complete removal of any plant. Ask your local garden center for help in selecting an appropriate fungicide and remember to follow the label for use of personal protective equipment.
