Chinese clubroot

[gojiberry]

I tried to grow some pak choy last year and to start with it looked really good. Went on holiday and cam back and the pak choy was very sick and when I pulled it out the roots were all swollen. I think it was probably club root but didn't look like club root on cabbages etc. Are all chinese veg prone to club root.

[Flummery]

Strewth! Don't tell me there's yet another disease I have to worry about?

[Cutecumber]

It's a brassica, so yes it can get clubroot.

Cut through one of the swellings and see if its hollow or solid.