Salt solution for brassicas?

Mmmmm, might try the salt solution.  I have been saying for the past 3 weeks that my brassicas are the best ever, only to find a load of tiny caterpillars on some of them tonight when I went out to water.  squashed what I could find, but how did their parents get past my netting???

Kept on being intrigued by mentions of Wilkinsons, so went onto their website, only to see a map of the UK on their homepage, neatly cut off at a line from Carlisle to Newcastle. :roll:

Don't worry, when I worked in London they thought that Yorkshire started after Watford and on the rest of their map was the legend 'Here be Yokels'
Shame you haven't got a Wilkos near you though - they do have some very good bargains. I got 2 rolls of green plastic covered wire fencing in the clearance sale reduced from 9.99 a roll to 1p.  I kept expecting to be arrested as I left the shop.