Phoma macdonaldii on sunflower plant - 2

Description:

Description: English: Photographer: Howard F. Schwartz Organization: Colorado State University Descriptor: Symptoms Description: A sunflower plant with Phoma black stem infection caused by Phoma macdonaldii. Image type:Field Host: sunflower (Helianthus spp. L.). Date: 25 January 2008. Source: http://www.forestryimages.org/browse/subthumb.cfm?sub=18967. Author: Howard F. Schwartz. Location: United States Licensing[edit] : This file is licensed under the Creative Commons Attribution 3.0 Unported license. :. You are free: to share – to copy, distribute and transmit the work to remix – to adapt the work Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. https://creativecommons.org/licenses/by/3.0 CC BY 3.0 Creative Commons Attribution 3.0 truetrue.