gwtx2 wrote:

Does anyone know how a cabbage head forms? Does it form by the outside
leaves wrappring over each other, or does it form from within? If ir
forms from the outside leaves, does pesticide become trapped within the
head?

I have 4 cabbages growing. The heads formed from the inside leaves that
had me wondering about the cabbage worm droppings. What I did was
remove any worms I found then sprayed the heads good with plain water.
The though of worm droppings in my cabbage was discusting. I would think
pesticide could become trapped within the head just on principle. The
pesticide I used indicates a harvest date so you have to spray so many
days before harvesting. I think after that time the pesticide is
harmless? I'm sure commercial growers use pesticides on cabbage
otherwise they would have a diminished crop.