Kerria Japonica, golden guineas

Chicago, IL

My golden guineas have some kind of pest or disease. (see photos) Can anyone assist me in identifing whats killing the Kerria japonica's (golden guineas)

Thumbnail by chiron8 Thumbnail by chiron8
Hadley, PA(Zone 5a)

It might be phomopsis stem blight, to which kerrias apparently are susceptible. If you scroll partway down the following page, you can see a photo of it on kerria. (Not the first photo, which is juniper.)
http://hyg.ipm.illinois.edu/article.php?id=669

Chicago, IL

Thank you Audrey. That looks very, very similar to what is destroying the Japonicas. Thank you for the information.

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