Peronospora jaapiana

17 Sep 2023

Ink painting/drawing of Peronospora leaf spot of rhubarb, caused by the oomycete Peronospora jaapiana.  The painting shows a single rhubarb leaf. The leaf is covered in angular tan lesions bordered by leaf veins.

Ink painting/drawing of Peronospora leaf spot of rhubarb, caused by the oomycete Peronospora jaapiana.

The painting shows a single rhubarb leaf. The leaf is covered in angular tan lesions bordered by leaf veins.

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Didymella rhei