This image (or all images in this category/page) is very small, unfixably too light/dark, or may not adequately illustrate the subject of the image. If a higher-quality image is available please consider replacing this one; otherwise, a replacement under a free license should be found or provided. Please see Category:Image cleanup templates for templates used to mark images that only need a clean-up. For more help, see Commons:Media for cleanup#Low quality images. Description: English: Tan spot symptoms. Date: 21 December 2011. Source: Own work. Author: Sharma.ram.h.
Description: English: Pyrenophora seminiperda on Bromus tectorum seeds. Date: photograph: 2014(retouched 22 February 2017). Source: part of image at https://www.fs.fed.us/research/highlights/highlights_display.php?in_high_id=703. Author: original imageː Dr. Susan E. Meyer USDA Forest Service. : This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: cropping, editing, conversion to jpg. Modifications made by Dennis Pietras, Buffalo, NY, USA. The original can be found here.