Yellow spotting on Peony leaves - Ask Extension
Year after year these spots appear on teo of my peony plants. The spots start to appear in late spring to early summer and seem to spread throughout t...
Knowledgebase
Yellow spotting on Peony leaves #794314
Asked June 05, 2022, 1:01 PM EDT
Year after year these spots appear on teo of my peony plants. The spots start to appear in late spring to early summer and seem to spread throughout the plant as time goes on.
I’m looking for help identifying what this is and how to stop and prevent this in the future.
Thank you!
Ryan
Douglas County Colorado
Expert Response
Hi Ryan,
I am sorry to hear about the spots on you plants! Could you please send pictures of the spots? Also, how old are your peonies and what kind of sunlight do they receive?
Hopefully we can help you get answers quickly!
I am sorry to hear about the spots on you plants! Could you please send pictures of the spots? Also, how old are your peonies and what kind of sunlight do they receive?
Hopefully we can help you get answers quickly!
Good morning,
If has been a few weeks since I last responded.
I’m checking in on the status of my inquiry. I attached some photos as requested.
Is there anything else you need from me?
Thank you,
Ryan
Thank you for your reply!Pictures are attached.They receive a large amount of sunlight as they face the east with little obstruction to direct sunlight.This is the third season of growth.The peonies that start getting the spots are the middle one and the right side where my finger is pointing. As you can see the one on the left is thriving. No problems on that side.The spots appear to spread and gradually make their way across the whole plant.
Hi Ryan,
Here is a website that I think will help. https://extension.psu.edu/peony-diseases
It looks to me like tomato spotted wilt virus. If you cut anything on the infected plant be sure and sanitize all tools before moving to another peony. Don't touch one and then touch another not infected plant without cleaning your hands as that can spread the virus. Clean all debris in the fall and dispose of it. If is fails to have flowers you may want to replant. Hope this helps!
Here is a website that I think will help. https://extension.psu.edu/peony-diseases
It looks to me like tomato spotted wilt virus. If you cut anything on the infected plant be sure and sanitize all tools before moving to another peony. Don't touch one and then touch another not infected plant without cleaning your hands as that can spread the virus. Clean all debris in the fall and dispose of it. If is fails to have flowers you may want to replant. Hope this helps!
