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Is this blackberry orange rust ?

Posted by Sal1973 Ireland (My Page) on
Tue, Aug 12, 14 at 12:56

These spots have appeared about two weeks ago on some of the leaves. The plant is one year old and overall looks healthy. I'll be glad to know your opinion before I dispose of it.
Upper leaf pic

Follow-Up Postings:

RE: Is this blackberry orange rust ?

under it

RE: Is this blackberry orange rust ?

one more...

RE: Is this blackberry orange rust ?

last one I promise

RE: Is this blackberry orange rust ?


I have only seen orange rust once in person on black raspberries and it appeared similar but much more dispersed over the underside of the leaf. Looking at images of orange rust, I noticed that the top surface of the leaf appears brown or yellowish / orangish instead of purple. Given that you are in Ireland, there may be different types of orange rust there that differs from what we see in the States. I don't know of anything that causes the orange pustules on the underside of the leaf but there are several diseases that cause the purple color on the top side, like anthracnose. I would suggest checking with a local nursery to be sure.

RE: Is this blackberry orange rust ?

Thanks Jtburton. I 've seen severe cases of orange rust on the wild brambles around here and mine looks like is very minor compared. The folks from the nursery told me to wait and see if it gets worse and spread on more than just a few leaves before I tore it apart and burn it.

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