Anise Swallowtail > Moving caterpillars to fresh plant

One thing to always remember is that if you do decide to move caterpillars from old to new plant, they should never be moved if they are what we call "set to molt" or "set to shed" to the next instar (getting ready to shed their skin).  This video teaches you what you need to know.   http://utahbutterflies.ning.com/video/when-is-a-caterpillar-set-to