Hello. Can anyone help me ID small orange blotches of a jelly-like substance on the underside of my cedar trees. I noticed it a few days ago and this evening when I went outside I noticed that some of the tips on the trees are dying and the oj jelly has disappeared. What can I do? (The cedars are all sizes on a gently eastern sloping hillside. IBM
Can you post a photo? Are you sure of the identification of the tree? 'Orange jelly' sounds like a rust fungus (Gymnosporangium) that attacks cypresses, incense-cedars, and junipers, but not cedars.
Thank you for your quick reply. I appreciate it. Yes, Michael, you are right. We have incense cedars on our property. How does one treat a rust fungus? Ingrid
Hello. After some research and taking some samples from my tree, the jelly-like substance that I saw last week closely resembles, Gymnosporangium libocedri. A photo appears at: www.flickr.com/photos/15074242@N00/3430103855/in/pool-71332142@N00 The jelly-like substance has now dried and looks like the photo located at: http://plant-disease.ippc.orst.edu/plant_images/cedarrust1.JPG From what little I am able to ascertain from the internet, it is not serious; other sites tell me it is serious. Hmmm. Perhaps it comes and goes each year and this is the first time I've noticed it.
