Description: English: The disease symptoms of tomato leaf spot, caused by Septoria lycopersici, on a tomato leaf (Solanum lycopersicum). Scale on orange bar on RHS is in mm and cm. Taken September 2021 on variety Sungold grown outdoors in domestic garden. Date: 8 September 2021. Source: Own work. Author: MerielGJones.
Description: English: This image depicts small, dark brown, and round necrotic lesions ranging in size from 1-5mm on the upper side of the potato leaf. The lesions exhibit pronounced concentric ridges with 1 to 3 erumpent black pycnidia within the central ring. Date: 5 August 2008. Source: https://www.forestryimages.org/browse/detail.cfm?imgnum=0660031. Author: E.R. French, CIP, Lima, Bugwood.org.
Clemson University - USDA Cooperative Extension Slide Series, , United States
Wikimedia Commons
Description: English: Septoria tritici on wheat Nederlands: Bladvlekkenroest op tarwe. Date:. Source: http://www.forestryimages.org/browse/detail.cfm?imgnum=1436029. Author: Clemson University - USDA Cooperative Extension Slide Series, , United States. Permission (Reusing this file): Creative Commons Attribution 3.0 United States License.