|
| Hey again.
I have a Juniperus Virginiana (see previous thread in Tree Forum: Can anyone ID this tree? (photos included)), I found what I think is called Cedar Apple Rust (Gymnosporangium juniperi-virginianae) on one branch only.
I do not see it anywhere else. After doing a little research, I found it will look like this soon:
Needless to say, this is alarming to a novice. I've never seen it before. Should I be freaking out and spraying my tree with a fungicide? Anyone have experience with this before?
|
Follow-Up Postings:
|
- Posted by treeguy123 AL 7a (My Page) on Fri, Apr 20, 12 at 16:02
| We have a Juniperus virginiana that gets it every year and that's over many years, and nothing has ever happen to it. I don't think they harm the overall health the the tree, they just look weird. |
|
| Harmless to the Juniper. It is just a host plant to complete the fungi cycle. Anyone harvesting apples from their orchard near by won't like the Juniper growing on your property.. Dave |
Here is a link that might be useful: Cedar Apple Rust
|
- Posted by cearbhaill Zone 6b Eastern KY (My Page) on Fri, Apr 20, 12 at 20:10
| The aliens live among us. Just sayin'. |
|
- Posted by gardener365 IL 5/6 (My Page) on Sat, Apr 21, 12 at 7:20
| Prune the infected branch & burn it. If more begins showing up on other branches, that's a different story all together. Dax |
|
- Posted by novaplantguy_z7b_8a Alexandria, VA 7B/8A (My Page) on Sat, Apr 21, 12 at 7:21
| The tree looks like an older Eastern Red Cedar (Juniper Virginiana. That said, Cedar Apple Rust is not really harmful to the tree other than the small portion it infects. These are host trees to just part of its life cycle. Now if you or your neighbors have any apple trees, crabs, or hawthorn trees, it will infect those trees and can cause serious problems or even death to them if left untreated. Generally speaking, you do not want to have any junipers (cedars) within 1/2 to 2 mile radius of an apple orchard, or ideal even just a lone apple, crab or hawthorn tree. So the answer to your question is no, it is not going to really harm no kill your cedar. One the galls are done producing spores, they die and fall off of the tree the next year. For the life cycle to be completed there must also be apple, crab or hawthorn trees near by, as the next of the two cycle stage is on those trees and not the cedars. Breaking that cycle is the best way to stop the disease. |
Please Note: Only registered members are able to post messages to this forum. If you are a member, please log in. If you aren't yet a member, join now!
Return to the Conifers Forum
Instructions
- You must be a registered member and logged in to post messages on our forums.
- Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review the contents and make changes.
- After posting your message, you may need to refresh the forum page in order to see it.
- It is illegal to post copyrighted material without the owner's consent.
- HTML codes are allowed in the message field only.
- No advertising is allowed in any of the forums.
- If you would like to practice posting or uploading photos, please visit our Test forum.
- If you need assistance, please Contact Us and we will be happy to help.