Claflin, Larry2015-12-232015-12-231977-02-012/1/1977http://hdl.handle.net/2097/21201The "dirt-like" blackish areas on the tuber are sclerotia, the resting stage of rhizoctonia solani.Host/Plant: Potato (Solanum tuberosum subsp. tuberosum)Pest/Path: Rhizoctonia Canker and Black Scurf (Rhizoctonia solani)1046 x 1585 pixelsThis Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).Fungal DiseasesPotato DiseasesRhizoctoniaBlackish areas on tuber are sclerotiaImageColor photographs