Cabbage Wilting Is It Club Root?

Four or Five of my cabbages have wilted and the roots look wrong, I have taken some quick photo's and posted them below could someone advise me what action to take, I am going away for a weeks holiday tomorrow and I am  worried that it might be something that is going to affect the rest of the crop.

Photo 1 shows the wilted cabbage.
Photo 2 shows the root.
Photo 3 shows the other healthy looking brassica's.

It is indeed club root.

You did nothing wrong.  The fleece will have made no difference.

Thanks for the confirmation and tips at least I now know what I am dealing with! I dug the effected cabbages out and binned them.

I was worried about leaving them in the ground to infect other plants and went down to my allotment at 06:00 this morning and got rid of them before I left for holiday - hopefully the rest of them will be OK. Thanks for the link to the RHS I will take their advise and avoid planting the same area with brassica's for as long as possible, I will also look into planting club root resistant plants such as 'Kilaton' next season.

The look of the club root gives me the creeps 

If the plants are well established can they withstand a club root infection enough to produce an edible plant or will it just take over the whole of the root system once infected? I don't want to start throwing stuff in the bin if it can still be eaten.

DD has club root and hopefully will be along to confirm which varieties he grows, which are more club root resistant.

If you grow the plant on in pots to a decent size, and sprinkle the planting hole with lime, then this can help give the plants a head start.

We have club root in both our plots. All the advice given above is good. However if you follow the advice you don't necessarily have to stick to the club root resistant varieties to get a good harvest (although I'm sure it will help).

As an example we are currently harvesting Spring Hero cabbages and Aquiles calabrese both of which we over-wintered. They both show signs of club root but the crops are fantastic without any sign of wilting in this dry, warm weather we are having. We got a cabbage last night and it must be at least 4kg although I haven't weighed it.

For the summer/autumn harvest we are growing Kilaton cabbage, Clapton cauliflower and Crispus brussels sprouts all for the first time. Going by baldy-bob's comments we're hopefully not going to be disappointed. They all look very well so far; no wilting or even any sign of club root yet.

So as others have said grow plants on in 3 or 5 inch pots before introducing them to your plot. Lime two or three weeks before planting out and lightly rake in. When planting out drop a good handful of lime in to the hole at planting time. I know club root takes a long time to get rid of but regardless of that always rotate your brassica crop too.

There is, unfortunately, hardly an allotment in the country that doesn't have club root.  !