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. 2018 Jul 17;8:10765. doi: 10.1038/s41598-018-29027-z

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© The Author(s) 2018

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Development of anthracnose symptoms on a walnut fruit. Left: in June small brown to black necrosis, here taking also the aspect of a run-out, appear on young fruit. Centre: around August orange conidial masses can usually be observed. The necrosis has a dry aspect and deforms the husk. Right: The nut can become completely necrotic and deformed, with conidial masses, and falls of the tree.