I painted spring cabbage black rot, caused by Xanthomonas campestris, for the April 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 spring cabbage with characteristic V-shaped lesions at the leaf margins. These lesions display chlorotic (yellow) edges with necrotic brown centres, typical symptoms of this bacterial disease.