[colin120]

Hi all
         Started my second lot of potatoes in a home made box away from my first potatoes, but some of the roots are turning black.

Pulled  the black ones out, two questions why are some turning black, Also are the whole lot now no good ??

I have added some pics

Thanks Colin

[AnneB]

It looks like blackleg to me.    Here is the RHS advice.   I would pull out all the affected ones.  You may be lucky with the rest, but it doesn't look good.

https://www.rhs.org.uk/advice/profile?pid=223

[mumofstig]

It looks like blackleg to me.

and to me......