Posted: 31/08/2013 at 09:49
The best way of keeping them at bay, that I've found, is to net the plants as soon as
you plant them. However you could still do it now, remove all the caterpillars and eggs that you find and cover your plants with netting. I use sticks bent over like a hoop and then tie the netting over that and weigh the ends down with stones. You can buy kits from garden centres. If not totally decimated cabages usually revive. I have to do mine today as I didn't take my own advice!
Good luck and don't give up!