Green fuzzies.
I haven't grown cabbage in a long time, Mary, so I'm not sure about them, but I do know what you're talking about. Whenever I'm in doubt, I start with the garlic/onion tea, and progress to her super duper horse radish/spearmint mix if the first doesn't work. A little salt seems to work on worms too usually.
I measured then, I don't measure anymore, but I do know that the JBeetles are the hardest to get rid of and that horse radish tea works on them. Mostly I use it on everything actually. I doubt the mix would hurt the cabbage.