I’ve taken advice from the good folks on the Grapevine, & have done a bit of research, & we appear to have a number of options:
Sterilise soil – similar to what they did in Vietnam.
Pros: will definitely cure Eelworm infestation
Cons: will also 'cure' all the ‘goodies’ - hardly a ‘green’ option; most chemicals which will do the job have been banned
Organic cure – sow a variety of marigold (tagetes minuta) which discourages Eelworm
Pros: can sow around existing planting plan; ‘green’ solution
Cons: will only ‘discourage’ not ‘cure’; plants are a bit big and not too pretty
Hard work cure – building raised beds, line with cardboard, import ‘clean’ soil
Pros: can grow onions and related in the raised beds, and brassicas & lettuce in the rest; this will look very good – we aspire to raised beds
Cons: expensive; lots of effort
Conscientious cure - only grow brassicas and lettuce in the plot for two years
Pros: this will get rid of the eelworm, & in an organic way
Cons: there are only so many cabbages you can eat
Lazy cure – just carry on & hope that this is just a bad year for Eelworm
Pros: It might be better next year; can minimise problem by sowing autumn onions & spring onions can be grown in pots at home
Cons: It might be worse next year
I though about all of this as I picked my tea – POTATO (rocket), TURNIP (snowball) & BROAD BEANS (aguadulce) along with some LETTUCE (mixed), RADISH (cherrybelle) & BEETROOT (woden f1) leaves which I’ll have in a salad tomorrow. I also couldn’t resist pulling up the first GARLIC plant – rather a small bulb, & without peeling it, I don’t know if it has split into cloves properly – but it looks fantastc - cheered me up no end!