This nasty infection causes root problems, meaning your plants fail to thrive. However, it only affects one family of plants – brassicas – so your control measures can be confined to that group. Brassicas include cabbages, cauliflowers, Brussels sprouts, swedes and turnips, plus popular flowers such as wallflowers, and many weeds.
The tiny organism that causes club root, a protozoa, lives in soil, where it can survive without a host plant for more than 20 years! Roots swell and distort, so they don’t work properly – the plants may wilt, go yellow, fall over or fail to grow. Proof of infection is obvious when you dig up your brassica vegetables at the end of the season. If you find it, take care to destroy the roots, firstly by drying and…