I painted Phytophthora ramorum symptoms on rhododendron for the November illustration of the BSPP 2024 plant pathogens calendar.

BSPP 2024 Calendar – Images by Helen Pennington – BSPP – The British Society for Plant Pathology

The painting shows a rhododendron stem with three dead terminal buds, one rosette of leaves, and a pair of leaves. All the leaves exhibit lesions along the mid vein where the leaf meets the stem, and one leaf shows blackening at the tip.