black scurf of potato or black speck of potato. fungal disease of potatoes caused by the basidiomycete fungus rhizoctonia solani.

black scurf of potato or black speck of potato. fungal disease of potatoes caused by the basidiomycete fungus rhizoctonia solani.

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  • Author: istock
  • License:buy for Personal Use & Commercial
  • File Type: JPG
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