Huanglongbing aka Citrus Greening
29 May 2022
Ink painting/drawing of huanglongbing aka citrus greening disease, caused by Liberibacter spp. (L. asiaticus, L. africanus or L. americanus).
The painting shows a sour orange branch with three fruit and 10 leaves. The symptoms shown include leaf yellowing, fruit asymmetry, and discolouration of fruit.
Top: scanned image
Bottom: photograph