GOT'em! DYZZY we just got in from our "hunt" in the GH. Picked off 8 of the little green catapillars. Lost one in the process. Will spray again tomorrow and then have another hunt in the night. They were very slow. Not sure if that's their nature or the organic spray working. Ya'll were right -- so hard to see them. Next time I will check and treat all my plants carefully before putting them in the GH.
Thank you everyone.