Illustrations of Plant Diseases

Except where otherwise noted, pictures on this site are by Ethan Hack. Most of them were taken on the Newcastle University Field Identification Skills module's disease identification day. They are unprocessed digital camera JPG files and so both the files and the pictures are quite large. Internet Explorer should scale them automatically to fit in a browser window.

Creative Commons License
Pictures taken by Ethan Hack are licensed under a Creative Commons Attribution-Noncommercial 2.0 UK: England & Wales License.


Rust diseases

Stem rust uredia and telia

Blackberry rust: telial stage

Blackberry rust: telial stage close-up

Broad bean rust

Two different rusts on coltsfoot, Puccinia poarum (aecia) and Coleosporium tussilaginis (uredia)

Two different rusts on coltsfoot: close-up

Aecia of Puccinia poarum on coltsfoot


Late blight of potato and tomato

Blighted potato plants

Blighted potato leaf, upper (adaxial) side

Blighted potato leaf, lower (abaxial) side

Blighted tomato fruit


Fruit diseases

Apple scab

Brown rot of plums, similar to brown rot of apples.