Causal organism of potato scab is

A. Synchytrium endobioticum

B. Spongospora scabies

C. Streptomyces scabies

D. Ralstonia solonacearum

Answer: Option C

Solution(By Examveda Team)

The causal organism of potato scabs is Streptomyces scabies.
Streptomyces scabies is a Gram-positive bacterial pathogen that causes common scab disease in several crops, particularly the potato.
It is a soil-borne pathogen, a very devastating scab pathogen, and difficult to manage in the field.