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My marion berry leaves are variated #870730

Asked May 30, 2024, 10:48 AM EDT

Marion berries are varigated looking instead of solid green

Clackamas County Oregon

Expert Response

Thank you for your question, Lisa.  Without a clear, up-close photo, we can't diagnose the problem(s).  There are at least 20 diseases that impact marionberries!  I could guess that you're describing this virus (https://pnwhandbooks.org/plantdisease/host-disease/blackberry-rubus-spp-virus-diseases), but don't to offer advice without a picture.  Could you please provide more information?  Thanks!
An Ask Extension Expert Replied June 03, 2024, 3:10 PM EDT
image


On Mon, Jun 3, 2024 at 12:10 PM Ask Extension <<personal data hidden>> wrote:
The Question Asker Replied June 03, 2024, 3:15 PM EDT
Thanks!  Yes; exactly like that pictured in the article I sent you!   

Once a virus has infected a plant, it is there for good. As the article indicates, "no known vector" has been found. That means that the mechanism (typically an insect) that got it to the plant is unknown, so explaining where it came from and how to control it is still a mystery. You can, though, expect that your plant's yield will be less. If you take the advice found there, you should remove it and replace it with an immune or resistant variety. A reputable nursery should be able to recommend some. Good luck!
An Ask Extension Expert Replied June 03, 2024, 3:18 PM EDT

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