How can I control the disease?

I am an advisor for potato mini-tuber production in several companies in Iran. In one of the companies controlled by me, something went wrong. There are spots at the surface of some mini-tubers. Spots were shown in the image sent you. What causes the spots? Please let me know how can I control the problem.

Best Regards.
Darvishi.

1 Comment (Open | Close)

1 Comment To "How can I control the disease?"

#1 Comment By Downtoearthdigs On 09/16/2015 @ 12:30 pm

This could be a Potato Scab disease.
Here is a link with more information.

https://www.gardeningknowhow.com/edible/vegetables/vgen/scab-on-vegetables.htm ^[1]

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