cabbage slugs & worms

Are you sure they're earthworms, I can't imagine earthworms invading live cabbage plants. I plant cabbage every year and have no insect/slug problems, used to have rabbits and field mice helping themselves but ever since I began caring for feral cats there are no more rodents/rabbits. I use no chemicals. In fact I've been harvesting cabbages, picked a seven pounder today, it was sliced into eight wedges, stuffed into a pot with an inch of salted water, and it's simmering right now. I even stole some of the center part to eat as cook's treat, so sweet. Where are you located, nights are too cool here in the Catskills now for insects/slugs.

have had this problem every year I grow cabbage, I don't see them in the red cabbage, white cabbage is what I have a problem with. They sure look like earthworms, they are small ones however. I live in central Michigan. Next cabbage I cut open, I will post some pictures............probably next week.

Slugs take refuge in such plants, they don't eat them.

Sure they do!