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Disease ID question

Posted: Sun Aug 04, 2019 6:49 pm
by jbergeson
A customer and former neighbor of mine gave me these pics, wondering what is wrong with her Morden Centennial.

It really doesn't look like blackspot. Very soft yellow spots, looking just like they're blurry.

Virus?

Re: Disease ID question

Posted: Sun Aug 04, 2019 10:18 pm
by roseseek
I'd first check for any sucking insects on the undersides of the foliage. It doesn't appear to be a disease nor does it look like anything I have ever had diagnosed as viral.