I'm not sure I understand your question? The leaf damage progresses till the leaf dies, sometimes it falls off but most of the time it gets a plastic look to it and its hard and brittle. They like to hide / lay eggs inside of buds, and other internal structures, most of the time you wont see them, just the damage. I hope that answered your question.
I dont mind posting my troubles along side my successes, it is important to realize we all are just growers, some with a bit more knowledge and experience than others, but we all face the same challenges. This will pass after a few weeks of work and then my garden will get back where it was.