Posted: 13/01/2013 at 18:23
Hi Bob, thanks for your reply. I dont think it can be eelworm because the worm can be easily seen, I've not managed to see a photo of this pest anywhere. I do grow earlies that can be dug up early before the tiny worms take hold, you could be right about the slugs making the holes first. This year I must try and take a photo which might help identification.