A blackberry cane with a mature, tan lesion of purple botch, Septocyta ruborum, and small, black, fruiting bodies (pycnidia) of the fungus.

A blackberry cane with a mature, tan lesion of purple botch and small, black, fruiting bodies (pycnidia) of the fungus.; Netherlands Credit: Rasbak<br />Licensed under a <a href=" https://creativecommons.org/licenses/by-sa/3.0/deed.en ">Creative Commons Attribution-ShareAlike 3.0 Unported License</a>
Credit: Rasbak
Licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License